ref: move to pathlib

fix: check plugin if script is in same directory as __init__.py
Fix naming for ci step
2023-11-13 21:25:48 +01:00 · 2023-11-13 20:37:41 +01:00 · 2023-11-13 19:35:26 +01:00 · 2023-11-13 19:21:54 +01:00 · 2023-11-13 19:19:59 +01:00 · 2023-11-11 19:08:53 +01:00
25 changed files with 1430 additions and 1360 deletions
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@ -0,0 +1,34 @@
+name: Checks
+
+on:
+  pull_request:
+  push:
+    branches:
+      - stable
+      - dev
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.x'
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install -r .github/workflows/requirements.txt
+
+    - name: Run MyPy
+      run: |
+        python -m mypy --install-types --non-interactive .
+
+    - name: Run PyTest
+      run: |
+        python -m pytest
--- a/.github/workflows/requirements.txt
+++ b/.github/workflows/requirements.txt
@ -0,0 +1,5 @@
+requests ~= 2.28.0
+graphviz ~= 0.20.1
+dataclasses-json ~= 0.6.2
+mypy ~= 1.7.0
+pytest ~= 7.4.3
--- a/cutekit/init.py
+++ b/cutekit/init.py
@ -2,8 +2,36 @@ import sys
 import os
 import logging

-from cutekit import const, project, vt100, plugins, cmds
-from cutekit.args import parse
+from . import (
+    builder,
+    cli,
+    compat,
+    const,
+    graph,
+    jexpr,
+    mixins,
+    model,
+    ninja,
+    plugins,
+    rules,
+    shell,
+    utils,
+    vt100,
+)
+
+
+def ensure(version: tuple[int, int, int]):
+    if (
+        const.VERSION[0] == version[0]
+        and const.VERSION[1] == version[1]
+        and const.VERSION[2] >= version[2]
+    ):
+        return
+
+    raise RuntimeError(
+        f"Expected cutekit version {version[0]}.{version[1]}.{version[2]} but found {const.VERSION_STR}"
+    )
+

 def setupLogger(verbose: bool):
    if verbose:
@ -13,15 +41,14 @@ def setupLogger(verbose: bool):
            datefmt="%Y-%m-%d %H:%M:%S",
        )
    else:
-        projectRoot = project.root()
+        projectRoot = model.Project.root()
        logFile = const.GLOBAL_LOG_FILE
        if projectRoot is not None:
-            logFile = os.path.join(projectRoot, const.PROJECT_LOG_FILE)
+            logfile = projectRoot / const.PROJECT_LOG_FILE

        # create the directory if it doesn't exist
-        logDir = os.path.dirname(logFile)
-        if not os.path.isdir(logDir):
-            os.makedirs(logDir)
+        if not logFile.parent.is_dir():
+            logFile.parent.mkdir(parents=True)

        logging.basicConfig(
            level=logging.INFO,
@ -31,18 +58,19 @@ def setupLogger(verbose: bool):
            datefmt="%Y-%m-%d %H:%M:%S",
        )

+
 def main() -> int:
    try:
-        a = parse(sys.argv[1:])
+        a = cli.parse(sys.argv[1:])
        setupLogger(a.consumeOpt("verbose", False) is True)
        plugins.loadAll()
-        cmds.exec(a)
+        cli.exec(a)
        print()
        return 0
    except RuntimeError as e:
        logging.exception(e)
-        cmds.error(str(e))
-        cmds.usage()
+        cli.error(str(e))
+        cli.usage()
        print()
        return 1
    except KeyboardInterrupt:
--- a/cutekit/args.py
+++ b/cutekit/args.py
@ -1,60 +0,0 @@
-from typing import Optional, Union
-
-
-Value = Union[str, bool, int]
-
-
-class Args:
-    opts: dict[str, Value]
-    args: list[str]
-
-    def __init__(self):
-        self.opts = {}
-        self.args = []
-
-    def consumePrefix(self, prefix: str) -> dict[str, Value]:
-        result: dict[str, Value] = {}
-        copy = self.opts.copy()
-        for key, value in copy.items():
-            if key.startswith(prefix):
-                result[key[len(prefix) :]] = value
-                del self.opts[key]
-        return result
-
-    def consumeOpt(self, key: str, default: Value = False) -> Value:
-        if key in self.opts:
-            result = self.opts[key]
-            del self.opts[key]
-            return result
-        return default
-
-    def tryConsumeOpt(self, key: str) -> Optional[Value]:
-        if key in self.opts:
-            result = self.opts[key]
-            del self.opts[key]
-            return result
-        return None
-
-    def consumeArg(self, default: Optional[str] = None) -> Optional[str]:
-        if len(self.args) == 0:
-            return default
-
-        first = self.args[0]
-        del self.args[0]
-        return first
-
-
-def parse(args: list[str]) -> Args:
-    result = Args()
-
-    for arg in args:
-        if arg.startswith("--"):
-            if "=" in arg:
-                key, value = arg[2:].split("=", 1)
-                result.opts[key] = value
-            else:
-                result.opts[arg[2:]] = True
-        else:
-            result.args.append(arg)
-
-    return result
--- a/cutekit/builder.py
+++ b/cutekit/builder.py
@ -1,171 +1,291 @@
 import os
 import logging
-from typing import TextIO
+from pathlib import Path
+from dataclasses import dataclass
+from itertools import chain
+from typing import Generator, TextIO, Union, cast

-from cutekit.model import Props
-from cutekit.ninja import Writer
-from cutekit.context import ComponentInstance, Context, contextFor
-from cutekit import shell, rules
+from . import shell, rules, model, ninja, const, utils, cli

-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)


-def gen(out: TextIO, context: Context):
-    writer = Writer(out)
+def aggregateCincs(target: model.Target, registry: model.Registry) -> set[str]:
+    res = set()

-    target = context.target
+    for c in registry.iterEnabled(target):
+        if "cpp-root-include" in c.props:
+            res.add(c.dirname())
+        elif c.type == model.Kind.LIB:
+            res.add(str(Path(c.dirname()).parent))

-    writer.comment("File generated by the build system, do not edit")
-    writer.newline()
-    writer.variable("builddir", context.builddir())
+    return set(map(lambda i: f"-I{i}", res))

-    writer.separator("Tools")

-    writer.variable("cincs", " ".join(map(lambda i: f"-I{i}", context.cincls())))
+def aggregateCdefs(target: model.Target) -> set[str]:
+    res = set()

-    writer.variable("cdefs", " ".join(context.cdefs()))
+    def sanatize(s: str) -> str:
+        return s.lower().replace(" ", "_").replace("-", "_").replace(".", "_")

-    writer.newline()
+    for k, v in target.props.items():
+        if isinstance(v, bool):
+            if v:
+                res.add(f"-D__ck_{sanatize(k)}__")
+        else:
+            res.add(f"-D__ck_{sanatize(k)}_{sanatize(str(v))}__")
+            res.add(f"-D__ck_{sanatize(k)}_value={str(v)}")

-    writer.rule("cp", "cp $in $out")
-    writer.newline()
+    return res

+
+def buildpath(target: model.Target, component: model.Component, path) -> Path:
+    return Path(target.builddir) / component.id / path
+
+
+# --- Compilation ------------------------------------------------------------ #
+
+
+def listSrc(component: model.Component) -> list[str]:
+    wildcards = set(chain(*map(lambda rule: rule.fileIn, rules.rules.values())))
+    dirs = [component.dirname()] + list(
+        map(lambda d: component.parent / d, component.subdirs)
+    )
+    return shell.find(dirs, list(wildcards), recusive=False)
+
+
+def compileSrc(
+    w: ninja.Writer, target: model.Target, component: model.Component
+) -> list[str]:
+    res: list[str] = []
+    for src in listSrc(component):
+        rel = Path(src).relative_to(component.dirname())
+
+        r = rules.byFileIn(src)
+        if r is None:
+            raise RuntimeError(f"Unknown rule for file {src}")
+
+        dest = buildpath(target, component, "obj") / rel.with_suffix(r.fileOut[0][1:])
+        t = target.tools[r.id]
+        w.build(str(dest), r.id, inputs=src, order_only=t.files)
+        res.append(str(dest))
+    return res
+
+
+# --- Ressources ------------------------------------------------------------- #
+
+
+def listRes(component: model.Component) -> list[str]:
+    return shell.find(str(component.subpath("res")))
+
+
+def compileRes(
+    w: ninja.Writer,
+    target: model.Target,
+    component: model.Component,
+) -> list[str]:
+    res: list[str] = []
+    for r in listRes(component):
+        rel = Path(r).relative_to(component.subpath("res"))
+        dest = buildpath(target, component, "res") / rel
+        w.build(str(dest), "cp", r)
+        res.append(str(dest))
+    return res
+
+
+# --- Linking ---------------------------------------------------------------- #
+
+
+def outfile(target: model.Target, component: model.Component) -> str:
+    if component.type == model.Kind.LIB:
+        return str(buildpath(target, component, f"lib/{component.id}.a"))
+    else:
+        return str(buildpath(target, component, f"bin/{component.id}.out"))
+
+
+def collectLibs(
+    registry: model.Registry, target: model.Target, component: model.Component
+) -> list[str]:
+    res: list[str] = []
+    for r in component.resolved[target.id].resolved:
+        req = registry.lookup(r, model.Component)
+        assert req is not None  # model.Resolver has already checked this
+
+        if r == component.id:
+            continue
+        if not req.type == model.Kind.LIB:
+            raise RuntimeError(f"Component {r} is not a library")
+        res.append(outfile(target, req))
+    return res
+
+
+def link(
+    w: ninja.Writer,
+    registry: model.Registry,
+    target: model.Target,
+    component: model.Component,
+) -> str:
+    w.newline()
+    out = outfile(target, component)
+    objs: list[str] = compileSrc(w, target, component)
+    res = compileRes(w, target, component)
+    libs = collectLibs(registry, target, component)
+    if component.type == model.Kind.LIB:
+        w.build(out, "ar", objs, implicit=res)
+    else:
+        w.build(out, "ld", objs + libs, implicit=res)
+    return out
+
+
+# --- Phony ------------------------------------------------------------------ #
+
+
+def all(w: ninja.Writer, registry: model.Registry, target: model.Target) -> list[str]:
+    all: list[str] = []
+    for c in registry.iterEnabled(target):
+        all.append(link(w, registry, target, c))
+    w.build("all", "phony", all)
+    w.default("all")
+    return all
+
+
+def gen(out: TextIO, target: model.Target, registry: model.Registry):
+    w = ninja.Writer(out)
+
+    w.comment("File generated by the build system, do not edit")
+    w.newline()
+
+    w.variable("builddir", target.builddir)
+    w.variable("hashid", target.hashid)
+
+    w.separator("Tools")
+
+    w.variable("cincs", " ".join(aggregateCincs(target, registry)))
+    w.variable("cdefs", " ".join(aggregateCdefs(target)))
+    w.newline()
+
+    w.rule("cp", "cp $in $out")
    for i in target.tools:
        tool = target.tools[i]
        rule = rules.rules[i]
-        writer.variable(i, tool.cmd)
-        writer.variable(i + "flags", " ".join(rule.args + tool.args))
-        writer.rule(
+        w.variable(i, tool.cmd)
+        w.variable(i + "flags", " ".join(rule.args + tool.args))
+        w.rule(
            i,
            f"{tool.cmd} {rule.rule.replace('$flags',f'${i}flags')}",
            depfile=rule.deps,
        )
-        writer.newline()
+        w.newline()

-    writer.separator("Components")
+    w.separator("Build")

-    all: list[str] = []
+    all(w, registry, target)

-    for instance in context.enabledInstances():
-        objects = instance.objsfiles()
-        assets = instance.resfiles()
-        writer.comment(f"Component: {instance.manifest.id}")
-        writer.comment(f"Resolved: {', '.join(instance.resolved)}")

-        for obj in objects:
-            r = rules.byFileIn(obj[0])
-            if r is None:
-                raise RuntimeError(f"Unknown rule for file {obj[0]}")
-            t = target.tools[r.id]
-            writer.build(obj[1], r.id, obj[0], order_only=t.files)
+@dataclass
+class Product:
+    path: Path
+    target: model.Target
+    component: model.Component

-        for asset in assets:
-            writer.build(asset[1], "cp", asset[0])

-        writer.newline()
+def build(
+    target: model.Target,
+    registry: model.Registry,
+    components: Union[list[model.Component], model.Component, None] = None,
+) -> list[Product]:
+    all = False
+    target.builddir.mkdir(parents=True, exist_ok=True)
+    ninjaPath = target.builddir / "build.ninja"

-        if instance.isLib():
-            writer.build(
-                instance.outfile(),
-                "ar",
-                list(map(lambda o: o[1], objects)),
-                implicit=list(map(lambda o: o[1], assets)),
+    with ninjaPath.open("w") as f:
+        gen(f, target, registry)
+
+    if components is None:
+        all = True
+        components = list(registry.iterEnabled(target))
+
+    if isinstance(components, model.Component):
+        components = [components]
+
+    products: list[Product] = []
+    for c in components:
+        products.append(
+            Product(
+                path=Path(outfile(target, c)),
+                target=target,
+                component=c,
            )
-        else:
-            libraries: list[str] = []
-
-            for req in instance.resolved:
-                reqInstance = context.componentByName(req)
-
-                if reqInstance is None:
-                    raise RuntimeError(f"Component {req} not found")
-
-                if not reqInstance.isLib():
-                    raise RuntimeError(f"Component {req} is not a library")
-
-                libraries.append(reqInstance.outfile())
-
-            writer.build(
-                instance.outfile(),
-                "ld",
-                list(map(lambda o: o[1], objects)) + libraries,
-                implicit=list(map(lambda o: o[1], assets)),
-            )
-
-            all.append(instance.outfile())
-
-        writer.newline()
-
-    writer.separator("Phony targets")
-
-    writer.build("all", "phony", all)
-    writer.default("all")
-
-
-def build(componentSpec: str, targetSpec: str, props: Props = {}) -> ComponentInstance:
-    context = contextFor(targetSpec, props)
-
-    shell.mkdir(context.builddir())
-    ninjaPath = os.path.join(context.builddir(), "build.ninja")
-
-    with open(ninjaPath, "w") as f:
-        gen(f, context)
-
-    instance = context.componentByName(componentSpec)
-
-    if instance is None:
-        raise RuntimeError(f"Component {componentSpec} not found")
-
-    if not instance.enabled:
-        raise RuntimeError(
-            f"Component {componentSpec} is disabled: {instance.disableReason}"
        )

-    shell.exec("ninja", "-f", ninjaPath, instance.outfile())
-
-    return instance
+    outs = list(map(lambda p: str(p.path), products))
+    if all:
+        shell.exec("ninja", "-v", "-f", ninjaPath)
+    else:
+        shell.exec("ninja", "-v", "-f", ninjaPath, *outs)
+    return products


-class Paths:
-    bin: str
-    lib: str
-    obj: str
-
-    def __init__(self, bin: str, lib: str, obj: str):
-        self.bin = bin
-        self.lib = lib
-        self.obj = obj
+# --- Commands --------------------------------------------------------------- #


-def buildAll(targetSpec: str, props: Props = {}) -> Context:
-    context = contextFor(targetSpec, props)
-
-    shell.mkdir(context.builddir())
-    ninjaPath = os.path.join(context.builddir(), "build.ninja")
-
-    with open(ninjaPath, "w") as f:
-        gen(f, context)
-
-    shell.exec("ninja", "-v", "-f", ninjaPath)
-
-    return context
+@cli.command("b", "build", "Build a component or all components")
+def buildCmd(args: cli.Args):
+    registry = model.Registry.use(args)
+    target = model.Target.use(args)
+    componentSpec = args.consumeArg()
+    if componentSpec is None:
+        raise RuntimeError("No component specified")
+    component = registry.lookup(componentSpec, model.Component)
+    build(target, registry, component)[0]


-def testAll(targetSpec: str):
-    context = contextFor(targetSpec)
+@cli.command("p", "project", "Show project information")
+def runCmd(args: cli.Args):
+    registry = model.Registry.use(args)
+    target = model.Target.use(args)
+    debug = args.consumeOpt("debug", False) is True

-    shell.mkdir(context.builddir())
-    ninjaPath = os.path.join(context.builddir(), "build.ninja")
+    componentSpec = args.consumeArg()
+    if componentSpec is None:
+        raise RuntimeError("No component specified")

-    with open(ninjaPath, "w") as f:
-        gen(f, context)
+    component = registry.lookup(componentSpec, model.Component)
+    if component is None:
+        raise RuntimeError(f"Component {componentSpec} not found")

-    shell.exec("ninja", "-v", "-f", ninjaPath, "all")
+    product = build(target, registry, component)[0]

-    for instance in context.enabledInstances():
-        if instance.isLib():
-            continue
+    os.environ["CK_TARGET"] = target.id
+    os.environ["CK_COMPONENT"] = product.component.id
+    os.environ["CK_BUILDDIR"] = target.builddir

-        if instance.id().endswith("-tests"):
-            print(f"Running {instance.id()}")
-            shell.exec(instance.outfile())
+    shell.exec(*(["lldb", "-o", "run"] if debug else []), str(product.path), *args.args)
+
+
+@cli.command("t", "test", "Run all test targets")
+def testCmd(args: cli.Args):
+    # This is just a wrapper around the `run` command that try
+    # to run a special hook component named __tests__.
+    args.args.insert(0, "__tests__")
+    runCmd(args)
+
+
+@cli.command("d", "debug", "Debug a component")
+def debugCmd(args: cli.Args):
+    # This is just a wrapper around the `run` command that
+    # always enable debug mode.
+    args.opts["debug"] = True
+    runCmd(args)
+
+
+@cli.command("c", "clean", "Clean build files")
+def cleanCmd(args: cli.Args):
+    model.Project.use(args)
+    shell.rmrf(const.BUILD_DIR)
+
+
+@cli.command("n", "nuke", "Clean all build files and caches")
+def nukeCmd(args: cli.Args):
+    model.Project.use(args)
+    shell.rmrf(const.PROJECT_CK_DIR)
--- a/cutekit/cli.py
+++ b/cutekit/cli.py
@ -0,0 +1,158 @@
+import inspect
+import sys
+
+from pathlib import Path
+from typing import Optional, Union, Callable
+from dataclasses import dataclass
+
+from . import const, vt100
+
+Value = Union[str, bool, int]
+
+
+class Args:
+    opts: dict[str, Value]
+    args: list[str]
+
+    def __init__(self):
+        self.opts = {}
+        self.args = []
+
+    def consumePrefix(self, prefix: str) -> dict[str, Value]:
+        result: dict[str, Value] = {}
+        copy = self.opts.copy()
+        for key, value in copy.items():
+            if key.startswith(prefix):
+                result[key[len(prefix) :]] = value
+                del self.opts[key]
+        return result
+
+    def consumeOpt(self, key: str, default: Value = False) -> Value:
+        if key in self.opts:
+            result = self.opts[key]
+            del self.opts[key]
+            return result
+        return default
+
+    def tryConsumeOpt(self, key: str) -> Optional[Value]:
+        if key in self.opts:
+            result = self.opts[key]
+            del self.opts[key]
+            return result
+        return None
+
+    def consumeArg(self, default: Optional[str] = None) -> Optional[str]:
+        if len(self.args) == 0:
+            return default
+
+        first = self.args[0]
+        del self.args[0]
+        return first
+
+
+def parse(args: list[str]) -> Args:
+    result = Args()
+
+    for arg in args:
+        if arg.startswith("--"):
+            if "=" in arg:
+                key, value = arg[2:].split("=", 1)
+                result.opts[key] = value
+            else:
+                result.opts[arg[2:]] = True
+        else:
+            result.args.append(arg)
+
+    return result
+
+
+Callback = Callable[[Args], None]
+
+
+@dataclass
+class Command:
+    shortName: Optional[str]
+    longName: str
+    helpText: str
+    isPlugin: bool
+    callback: Callback
+
+
+commands: list[Command] = []
+
+
+def command(shortName: Optional[str], longName: str, helpText: str):
+    curframe = inspect.currentframe()
+    calframe = inspect.getouterframes(curframe, 2)
+
+    def wrap(fn: Callable[[Args], None]):
+        commands.append(
+            Command(
+                shortName,
+                longName,
+                helpText,
+                Path(calframe[1].filename).parent != Path(__file__).parent,
+                fn,
+            )
+        )
+        return fn
+
+    return wrap
+
+
+# --- Builtins Commands ------------------------------------------------------ #
+
+
+@command("u", "usage", "Show usage information")
+def usage(args: Optional[Args] = None):
+    print(f"Usage: {const.ARGV0} <command> [args...]")
+
+
+def error(msg: str) -> None:
+    print(f"{vt100.RED}Error:{vt100.RESET} {msg}\n", file=sys.stderr)
+
+
+@command("h", "help", "Show this help message")
+def helpCmd(args: Args):
+    usage()
+
+    print()
+
+    vt100.title("Description")
+    print(f"    {const.DESCRIPTION}")
+
+    print()
+    vt100.title("Commands")
+    for cmd in sorted(commands, key=lambda c: c.shortName or c.longName):
+        pluginText = ""
+        if cmd.isPlugin:
+            pluginText = f"{vt100.CYAN}(plugin){vt100.RESET}"
+
+        print(
+            f" {vt100.GREEN}{cmd.shortName or ' '}{vt100.RESET}  {cmd.longName} - {cmd.helpText} {pluginText}"
+        )
+
+    print()
+    vt100.title("Logging")
+    print("    Logs are stored in:")
+    print(f"     - {const.PROJECT_LOG_FILE}")
+    print(f"     - {const.GLOBAL_LOG_FILE}")
+
+
+@command("v", "version", "Show current version")
+def versionCmd(args: Args):
+    print(f"CuteKit v{const.VERSION_STR}")
+
+
+def exec(args: Args):
+    cmd = args.consumeArg()
+
+    if cmd is None:
+        raise RuntimeError("No command specified")
+
+    for c in commands:
+        if c.shortName == cmd or c.longName == cmd:
+            c.callback(args)
+            return
+
+    raise RuntimeError(f"Unknown command {cmd}")
--- a/cutekit/cmds.py
+++ b/cutekit/cmds.py
@ -1,317 +0,0 @@
-import os
-import logging
-import sys
-
-from typing import Callable, cast, Optional, NoReturn
-
-from cutekit import context, shell, const, vt100, builder, graph, project
-from cutekit.args import Args
-from cutekit.jexpr import Json
-from cutekit.model import Extern
-from cutekit.context import contextFor
-
-Callback = Callable[[Args], None]
-
-logger = logging.getLogger(__name__)
-
-
-class Cmd:
-    shortName: Optional[str]
-    longName: str
-    helpText: str
-    callback: Callable[[Args], NoReturn]
-    isPlugin: bool = False
-
-    def __init__(
-        self,
-        shortName: Optional[str],
-        longName: str,
-        helpText: str,
-        callback: Callable[[Args], NoReturn],
-    ):
-        self.shortName = shortName
-        self.longName = longName
-        self.helpText = helpText
-        self.callback = callback
-
-
-cmds: list[Cmd] = []
-
-
-def append(cmd: Cmd):
-    cmd.isPlugin = True
-    cmds.append(cmd)
-    cmds.sort(key=lambda c: c.shortName or c.longName)
-
-
-def runCmd(args: Args):
-    project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt("target", "host-" + shell.uname().machine))
-    props = args.consumePrefix("prop:")
-
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        raise RuntimeError("Component not specified")
-
-    component = builder.build(componentSpec, targetSpec, props)
-
-    os.environ["CK_TARGET"] = component.context.target.id
-    os.environ["CK_COMPONENT"] = component.id()
-    os.environ["CK_BUILDDIR"] = component.context.builddir()
-
-    shell.exec(component.outfile(), *args.args)
-
-
-cmds += [Cmd("r", "run", "Run the target", runCmd)]
-
-
-def testCmd(args: Args):
-    project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt("target", "host-" + shell.uname().machine))
-    builder.testAll(targetSpec)
-
-
-cmds += [Cmd("t", "test", "Run all test targets", testCmd)]
-
-
-def debugCmd(args: Args):
-    project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt("target", "host-" + shell.uname().machine))
-    props = args.consumePrefix("prop:")
-
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        raise RuntimeError("Component not specified")
-
-    component = builder.build(componentSpec, targetSpec, props)
-
-    os.environ["CK_TARGET"] = component.context.target.id
-    os.environ["CK_COMPONENT"] = component.id()
-    os.environ["CK_BUILDDIR"] = component.context.builddir()
-
-    shell.exec("lldb", "-o", "run", component.outfile(), *args.args)
-
-
-cmds += [Cmd("d", "debug", "Debug the target", debugCmd)]
-
-
-def buildCmd(args: Args):
-    project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt("target", "host-" + shell.uname().machine))
-    props = args.consumePrefix("prop:")
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        builder.buildAll(targetSpec, props)
-    else:
-        builder.build(componentSpec, targetSpec, props)
-
-
-cmds += [Cmd("b", "build", "Build the target", buildCmd)]
-
-
-def listCmd(args: Args):
-    project.chdir()
-
-    components = context.loadAllComponents()
-    targets = context.loadAllTargets()
-
-    vt100.title("Components")
-    if len(components) == 0:
-        print("   (No components available)")
-    else:
-        print(vt100.indent(vt100.wordwrap(", ".join(map(lambda m: m.id, components)))))
-    print()
-
-    vt100.title("Targets")
-
-    if len(targets) == 0:
-        print("   (No targets available)")
-    else:
-        print(vt100.indent(vt100.wordwrap(", ".join(map(lambda m: m.id, targets)))))
-
-    print()
-
-
-cmds += [Cmd("l", "list", "List the targets", listCmd)]
-
-
-def cleanCmd(args: Args):
-    project.chdir()
-    shell.rmrf(const.BUILD_DIR)
-
-
-cmds += [Cmd("c", "clean", "Clean the build directory", cleanCmd)]
-
-
-def nukeCmd(args: Args):
-    project.chdir()
-    shell.rmrf(const.PROJECT_CK_DIR)
-
-
-cmds += [Cmd("n", "nuke", "Clean the build directory and cache", nukeCmd)]
-
-
-def helpCmd(args: Args):
-    usage()
-
-    print()
-
-    vt100.title("Description")
-    print(f"    {const.DESCRIPTION}")
-
-    print()
-    vt100.title("Commands")
-    for cmd in cmds:
-        pluginText = ""
-        if cmd.isPlugin:
-            pluginText = f"{vt100.CYAN}(plugin){vt100.RESET}"
-
-        print(
-            f" {vt100.GREEN}{cmd.shortName or ' '}{vt100.RESET}  {cmd.longName} - {cmd.helpText} {pluginText}"
-        )
-
-    print()
-    vt100.title("Logging")
-    print("    Logs are stored in:")
-    print(f"     - {const.PROJECT_LOG_FILE}")
-    print(f"     - {const.GLOBAL_LOG_FILE}")
-
-
-cmds += [Cmd("h", "help", "Show this help message", helpCmd)]
-
-
-def versionCmd(args: Args):
-    print(f"CuteKit v{const.VERSION_STR}\n")
-
-
-cmds += [Cmd("v", "version", "Show current version", versionCmd)]
-
-
-def graphCmd(args: Args):
-    project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt("target", "host-" + shell.uname().machine))
-
-    scope: Optional[str] = cast(Optional[str], args.tryConsumeOpt("scope"))
-    onlyLibs: bool = args.consumeOpt("only-libs", False) is True
-    showDisabled: bool = args.consumeOpt("show-disabled", False) is True
-
-    context = contextFor(targetSpec)
-
-    graph.view(context, scope=scope, showExe=not onlyLibs, showDisabled=showDisabled)
-
-
-cmds += [Cmd("g", "graph", "Show dependency graph", graphCmd)]
-
-
-def grabExtern(extern: dict[str, Extern]):
-    for extSpec, ext in extern.items():
-        extPath = os.path.join(const.EXTERN_DIR, extSpec)
-
-        if os.path.exists(extPath):
-            print(f"Skipping {extSpec}, already installed")
-            continue
-
-        print(f"Installing {extSpec}-{ext.tag} from {ext.git}...")
-        shell.popen(
-            "git", "clone", "--depth", "1", "--branch", ext.tag, ext.git, extPath
-        )
-
-        if os.path.exists(os.path.join(extPath, "project.json")):
-            grabExtern(context.loadProject(extPath).extern)
-
-
-def installCmd(args: Args):
-    project.chdir()
-
-    pj = context.loadProject(".")
-    grabExtern(pj.extern)
-
-
-cmds += [Cmd("i", "install", "Install all the external packages", installCmd)]
-
-
-def initCmd(args: Args):
-    import requests
-
-    repo = args.consumeOpt("repo", const.DEFAULT_REPO_TEMPLATES)
-    list = args.consumeOpt("list")
-
-    template = args.consumeArg()
-    name = args.consumeArg()
-
-    logger.info("Fetching registry...")
-    r = requests.get(f"https://raw.githubusercontent.com/{repo}/main/registry.json")
-
-    if r.status_code != 200:
-        logger.error("Failed to fetch registry")
-        exit(1)
-
-    registry = r.json()
-
-    if list:
-        print(
-            "\n".join(f"* {entry['id']} - {entry['description']}" for entry in registry)
-        )
-        return
-
-    if not template:
-        raise RuntimeError("Template not specified")
-
-    def template_match(t: Json) -> str:
-        return t["id"] == template
-
-    if not any(filter(template_match, registry)):
-        raise LookupError(f"Couldn't find a template named {template}")
-
-    if not name:
-        logger.info(f"No name was provided, defaulting to {template}")
-        name = template
-
-    if os.path.exists(name):
-        raise RuntimeError(f"Directory {name} already exists")
-
-    print(f"Creating project {name} from template {template}...")
-    shell.cloneDir(f"https://github.com/{repo}", template, name)
-    print(f"Project {name} created\n")
-
-    print("We suggest that you begin by typing:")
-    print(f"  {vt100.GREEN}cd {name}{vt100.RESET}")
-    print(
-        f"  {vt100.GREEN}cutekit install{vt100.BRIGHT_BLACK} # Install external packages{vt100.RESET}"
-    )
-    print(
-        f"  {vt100.GREEN}cutekit build{vt100.BRIGHT_BLACK}  # Build the project{vt100.RESET}"
-    )
-
-
-cmds += [Cmd("I", "init", "Initialize a new project", initCmd)]
-
-
-def usage():
-    print(f"Usage: {const.ARGV0} <command> [args...]")
-
-
-def error(msg: str) -> None:
-    print(f"{vt100.RED}Error:{vt100.RESET} {msg}\n", file=sys.stderr)
-
-
-def exec(args: Args):
-    cmd = args.consumeArg()
-
-    if cmd is None:
-        raise RuntimeError("No command specified")
-
-    for c in cmds:
-        if c.shortName == cmd or c.longName == cmd:
-            c.callback(args)
-            return
-
-    raise RuntimeError(f"Unknown command {cmd}")
--- a/cutekit/compat.py
+++ b/cutekit/compat.py
@ -1,3 +1,4 @@
+from pathlib import Path
 from typing import Any


@ -5,10 +6,11 @@ SUPPORTED_MANIFEST = [
    "https://schemas.cute.engineering/stable/cutekit.manifest.component.v1",
    "https://schemas.cute.engineering/stable/cutekit.manifest.project.v1",
    "https://schemas.cute.engineering/stable/cutekit.manifest.target.v1",
-
 ]

-OSDK_MANIFEST_NOT_SUPPORTED = "OSDK manifests are not supported by CuteKit. Please use CuteKit manifest instead"
+OSDK_MANIFEST_NOT_SUPPORTED = (
+    "OSDK manifests are not supported by CuteKit. Please use CuteKit manifest instead"
+)

 UNSUPORTED_MANIFEST = {
    "https://schemas.cute.engineering/stable/osdk.manifest.component.v1": OSDK_MANIFEST_NOT_SUPPORTED,
@ -20,14 +22,16 @@ UNSUPORTED_MANIFEST = {
 }


-def ensureSupportedManifest(manifest: Any, path: str):
+def ensureSupportedManifest(manifest: Any, path: Path):
    if "$schema" not in manifest:
        raise RuntimeError(f"Missing $schema in {path}")

    if manifest["$schema"] in UNSUPORTED_MANIFEST:
        raise RuntimeError(
-            f"Unsupported manifest schema {manifest['$schema']} in {path}: {UNSUPORTED_MANIFEST[manifest['$schema']]}")
+            f"Unsupported manifest schema {manifest['$schema']} in {path}: {UNSUPORTED_MANIFEST[manifest['$schema']]}"
+        )

    if manifest["$schema"] not in SUPPORTED_MANIFEST:
        raise RuntimeError(
-            f"Unsupported manifest schema {manifest['$schema']} in {path}")
+            f"Unsupported manifest schema {manifest['$schema']} in {path}"
+        )
--- a/cutekit/const.py
+++ b/cutekit/const.py
@ -1,20 +1,21 @@
 import os
 import sys
+from pathlib import Path

 VERSION = (0, 6, 0, "dev")
-VERSION_STR = f"{VERSION[0]}.{VERSION[1]}.{VERSION[2]}{'-' + VERSION[3] if VERSION[3] else ''}"
-MODULE_DIR = os.path.dirname(os.path.realpath(__file__))
-ARGV0 = os.path.basename(sys.argv[0])
-PROJECT_CK_DIR = ".cutekit"
-GLOBAL_CK_DIR = os.path.join(os.path.expanduser("~"), ".cutekit")
-BUILD_DIR = os.path.join(PROJECT_CK_DIR, "build")
-CACHE_DIR = os.path.join(PROJECT_CK_DIR, "cache")
-EXTERN_DIR = os.path.join(PROJECT_CK_DIR, "extern")
-SRC_DIR = "src"
-META_DIR = "meta"
-TARGETS_DIR = os.path.join(META_DIR, "targets")
+VERSION_STR = (
+    f"{VERSION[0]}.{VERSION[1]}.{VERSION[2]}{'-' + VERSION[3] if VERSION[3] else ''}"
+)
+ARGV0 = Path(sys.argv[0])
+PROJECT_CK_DIR = Path(".cutekit")
+GLOBAL_CK_DIR = Path.home() / ".cutekit"
+BUILD_DIR = PROJECT_CK_DIR / "build"
+CACHE_DIR = PROJECT_CK_DIR / "cache"
+EXTERN_DIR = PROJECT_CK_DIR / "extern"
+SRC_DIR = Path("src")
+META_DIR = Path("meta")
+TARGETS_DIR = META_DIR / "targets"
 DEFAULT_REPO_TEMPLATES = "cute-engineering/cutekit-templates"
 DESCRIPTION = "A build system and package manager for low-level software development"
-PROJECT_LOG_FILE = os.path.join(PROJECT_CK_DIR, "cutekit.log")
-GLOBAL_LOG_FILE = os.path.join(
-    os.path.expanduser("~"), ".cutekit", "cutekit.log")
+PROJECT_LOG_FILE = PROJECT_CK_DIR / "cutekit.log"
+GLOBAL_LOG_FILE = GLOBAL_CK_DIR / "cutekit.log"
--- a/cutekit/context.py
+++ b/cutekit/context.py
@ -1,303 +0,0 @@
-from typing import cast, Optional, Protocol, Iterable
-from itertools import chain
-from pathlib import Path
-import os
-import logging
-
-from cutekit.model import ProjectManifest, TargetManifest, ComponentManifest, Props, Type, Tool, Tools
-from cutekit import const, shell, jexpr, utils, rules, mixins, project
-
-logger = logging.getLogger(__name__)
-
-
-class IContext(Protocol):
-    target: TargetManifest
-
-    def builddir(self) -> str:
-        ...
-
-
-class ComponentInstance:
-    enabled: bool = True
-    disableReason = ""
-    manifest: ComponentManifest
-    sources: list[str] = []
-    res: list[str] = []
-    resolved: list[str] = []
-    context: IContext
-
-    def __init__(
-            self,
-            enabled: bool,
-            disableReason: str,
-            manifest: ComponentManifest,
-            sources: list[str],
-            res: list[str],
-            resolved: list[str]):
-        self.enabled = enabled
-        self.disableReason = disableReason
-        self.manifest = manifest
-        self.sources = sources
-        self.res = res
-        self.resolved = resolved
-
-    def id(self) -> str:
-        return self.manifest.id
-
-    def isLib(self):
-        return self.manifest.type == Type.LIB
-
-    def objdir(self) -> str:
-        return os.path.join(self.context.builddir(), f"{self.manifest.id}/obj")
-
-    def resdir(self) -> str:
-        return os.path.join(self.context.builddir(), f"{self.manifest.id}/res")
-
-    def objsfiles(self) -> list[tuple[str, str]]:
-        def toOFile(s: str) -> str:
-            return os.path.join(self.objdir(), s.replace(os.path.join(self.manifest.dirname(), ''), '') + ".o")
-        return list(map(lambda s: (s, toOFile(s)), self.sources))
-
-    def resfiles(self) -> list[tuple[str, str, str]]:
-        def toAssetFile(s: str) -> str:
-            return os.path.join(self.resdir(), s.replace(os.path.join(self.manifest.dirname(), 'res/'), ''))
-
-        def toAssetId(s: str) -> str:
-            return s.replace(os.path.join(self.manifest.dirname(), 'res/'), '')
-
-        return list(map(lambda s: (s, toAssetFile(s), toAssetId(s)), self.res))
-
-    def outfile(self) -> str:
-        if self.isLib():
-            return os.path.join(self.context.builddir(), self.manifest.id, f"lib/{self.manifest.id}.a")
-        else:
-            return os.path.join(self.context.builddir(), self.manifest.id, f"bin/{self.manifest.id}.out")
-
-    def cinclude(self) -> str:
-        if "cpp-root-include" in self.manifest.props:
-            return self.manifest.dirname()
-        elif self.manifest.type == Type.LIB:
-            return str(Path(self.manifest.dirname()).parent)
-        else:
-            return ""
-
-
-class Context(IContext):
-    target: TargetManifest
-    instances: list[ComponentInstance]
-    tools: Tools
-
-    def enabledInstances(self) -> Iterable[ComponentInstance]:
-        return filter(lambda x: x.enabled, self.instances)
-
-    def __init__(self, target: TargetManifest, instances: list[ComponentInstance], tools: Tools):
-        self.target = target
-        self.instances = instances
-        self.tools = tools
-
-    def componentByName(self, name: str) -> Optional[ComponentInstance]:
-        result = list(filter(lambda x: x.manifest.id == name, self.instances))
-        if len(result) == 0:
-            return None
-        return result[0]
-
-    def cincls(self) -> list[str]:
-        includes = list(filter(lambda x: x != "", map(
-            lambda x: x.cinclude(), self.enabledInstances())))
-        return utils.uniq(includes)
-
-    def cdefs(self) -> list[str]:
-        return self.target.cdefs()
-
-    def hashid(self) -> str:
-        return utils.hash((self.target.props, [self.tools[t].toJson() for t in self.tools]))[0:8]
-
-    def builddir(self) -> str:
-        return os.path.join(const.BUILD_DIR, f"{self.target.id}-{self.hashid()[:8]}")
-
-
-def loadAllTargets() -> list[TargetManifest]:
-    projectRoot = project.root()
-    if projectRoot is None:
-        return []
-
-    pj = loadProject(projectRoot)
-    paths = list(
-        map(lambda e: os.path.join(const.EXTERN_DIR,
-            e, const.TARGETS_DIR),  pj.extern.keys())
-    ) + [const.TARGETS_DIR]
-
-    ret = []
-    for entry in paths:
-        files = shell.find(entry, ["*.json"])
-        ret += list(map(lambda path: TargetManifest(jexpr.evalRead(path), path), files))
-
-    return ret
-
-
-def loadProject(path: str) -> ProjectManifest:
-    path = os.path.join(path, "project.json")
-    return ProjectManifest(jexpr.evalRead(path), path)
-
-
-def loadTarget(id: str) -> TargetManifest:
-    try:
-        return next(filter(lambda t: t.id == id, loadAllTargets()))
-    except StopIteration:
-        raise RuntimeError(f"Target '{id}' not found")
-
-
-def loadAllComponents() -> list[ComponentManifest]:
-    files = shell.find(const.SRC_DIR, ["manifest.json"])
-    files += shell.find(const.EXTERN_DIR, ["manifest.json"])
-
-    return list(
-        map(
-            lambda path: ComponentManifest(jexpr.evalRead(path), path),
-            files))
-
-
-def filterDisabled(components: list[ComponentManifest], target: TargetManifest) -> tuple[list[ComponentManifest], list[ComponentManifest]]:
-    return list(filter(lambda c: c.isEnabled(target)[0], components)), \
-        list(filter(lambda c: not c.isEnabled(target)[0], components))
-
-
-def providerFor(what: str, components: list[ComponentManifest]) -> tuple[Optional[str], str]:
-    result: list[ComponentManifest] = list(
-        filter(lambda c: c.id == what, components))
-
-    if len(result) == 0:
-        # Try to find a provider
-        result = list(filter(lambda x: (what in x.provides), components))
-
-    if len(result) == 0:
-        logger.error(f"No provider for '{what}'")
-        return (None, f"No provider for '{what}'")
-
-    if len(result) > 1:
-        ids = list(map(lambda x: x.id, result))
-        logger.error(f"Multiple providers for '{what}': {result}")
-        return (None, f"Multiple providers for '{what}': {','.join(ids)}")
-
-    return (result[0].id, "")
-
-
-def resolveDeps(componentSpec: str, components: list[ComponentManifest], target: TargetManifest) -> tuple[bool, str,  list[str]]:
-    mapping = dict(map(lambda c: (c.id, c), components))
-
-    def resolveInner(what: str, stack: list[str] = []) -> tuple[bool, str,  list[str]]:
-        result: list[str] = []
-        what = target.route(what)
-        resolved, unresolvedReason = providerFor(what, components)
-
-        if resolved is None:
-            return False, unresolvedReason,  []
-
-        if resolved in stack:
-            raise RuntimeError(f"Dependency loop: {stack} -> {resolved}")
-
-        stack.append(resolved)
-
-        for req in mapping[resolved].requires:
-            keep, unresolvedReason,  reqs = resolveInner(req, stack)
-
-            if not keep:
-                stack.pop()
-                logger.error(f"Dependency '{req}' not met for '{resolved}'")
-                return False, unresolvedReason,  []
-
-            result.extend(reqs)
-
-        stack.pop()
-        result.insert(0, resolved)
-
-        return True, "", result
-
-    enabled, unresolvedReason, resolved = resolveInner(componentSpec)
-
-    return enabled, unresolvedReason, resolved
-
-
-def instanciate(componentSpec: str, components: list[ComponentManifest], target: TargetManifest) -> Optional[ComponentInstance]:
-    manifest = next(filter(lambda c: c.id == componentSpec, components))
-    wildcards = set(
-        chain(*map(lambda rule: rule.fileIn, rules.rules.values())))
-    sources = shell.find(
-        manifest.subdirs, list(wildcards), recusive=False)
-
-    res = shell.find(os.path.join(manifest.dirname(), "res"))
-
-    enabled, unresolvedReason, resolved = resolveDeps(
-        componentSpec, components, target)
-
-    return ComponentInstance(enabled, unresolvedReason, manifest, sources, res, resolved[1:])
-
-
-def instanciateDisabled(component: ComponentManifest,  target: TargetManifest) -> ComponentInstance:
-    return ComponentInstance(
-        enabled=False,
-        disableReason=component.isEnabled(target)[1],
-        manifest=component,
-        sources=[],
-        res=[],
-        resolved=[])
-
-
-context: dict[str, Context] = {}
-
-
-def contextFor(targetSpec: str, props: Props = {}) -> Context:
-    if targetSpec in context:
-        return context[targetSpec]
-
-    logger.info(f"Loading context for '{targetSpec}'")
-
-    targetEls = targetSpec.split(":")
-
-    if targetEls[0] == "":
-        targetEls[0] = "host-" + shell.uname().machine
-
-    target = loadTarget(targetEls[0])
-    target.props |= props
-
-    components = loadAllComponents()
-    components, disabled = filterDisabled(components, target)
-
-    tools: Tools = {}
-
-    for toolSpec in target.tools:
-        tool = target.tools[toolSpec]
-
-        tools[toolSpec] = Tool(
-            strict=False,
-            cmd=tool.cmd,
-            args=tool.args,
-            files=tool.files)
-
-        tools[toolSpec].args += rules.rules[toolSpec].args
-
-    for m in targetEls[1:]:
-        mixin = mixins.byId(m)
-        tools = mixin(target, tools)
-
-    for component in components:
-        for toolSpec in component.tools:
-            tool = component.tools[toolSpec]
-            tools[toolSpec].args += tool.args
-
-    instances: list[ComponentInstance] = list(
-        map(lambda c: instanciateDisabled(c, target), disabled))
-
-    instances += cast(list[ComponentInstance], list(filter(lambda e: e is not None, map(lambda c: instanciate(
-        c.id, components, target), components))))
-
-    context[targetSpec] = Context(
-        target,
-        instances,
-        tools,
-    )
-
-    for instance in instances:
-        instance.context = context[targetSpec]
-
-    return context[targetSpec]
--- a/cutekit/graph.py
+++ b/cutekit/graph.py
@ -1,59 +1,95 @@
 import os

-from typing import Optional
-from cutekit.context import Context
-from cutekit import vt100
+from typing import Optional, cast
+
+from . import vt100, cli, model


-def view(context: Context, scope: Optional[str] = None, showExe: bool = True, showDisabled: bool = False):
-    from graphviz import Digraph
+def view(
+    registry: model.Registry,
+    target: model.Target,
+    scope: Optional[str] = None,
+    showExe: bool = True,
+    showDisabled: bool = False,
+):
+    from graphviz import Digraph  # type: ignore

-    g = Digraph(context.target.id, filename='graph.gv')
+    g = Digraph(target.id, filename="graph.gv")

-    g.attr('graph',  splines='ortho', rankdir='BT', ranksep='1.5')
-    g.attr('node', shape='ellipse')
+    g.attr("graph", splines="ortho", rankdir="BT", ranksep="1.5")
+    g.attr("node", shape="ellipse")
    g.attr(
-        'graph', label=f"<<B>{scope or 'Full Dependency Graph'}</B><BR/>{context.target.id}>", labelloc='t')
+        "graph",
+        label=f"<<B>{scope or 'Full Dependency Graph'}</B><BR/>{target.id}>",
+        labelloc="t",
+    )

    scopeInstance = None

    if scope is not None:
-        scopeInstance = context.componentByName(scope)
+        scopeInstance = registry.lookup(scope, model.Component)

-    for instance in context.instances:
-        if not instance.isLib() and not showExe:
+    for component in registry.iterEnabled(target):
+        if not component.type == model.Kind.LIB and not showExe:
            continue

-        if scopeInstance is not None and \
-            instance.manifest.id != scope and \
-                instance.manifest.id not in scopeInstance.resolved:
+        if (
+            scopeInstance is not None
+            and component.id != scope
+            and component.id not in scopeInstance.resolved[target.id].resolved
+        ):
            continue

-        if instance.enabled:
-            fillcolor = "lightgrey" if instance.isLib() else "lightblue"
-            shape = "plaintext" if not scope == instance.manifest.id else 'box'
+        if component.resolved[target.id].enabled:
+            fillcolor = "lightgrey" if component.type == model.Kind.LIB else "lightblue"
+            shape = "plaintext" if not scope == component.id else "box"

-            g.node(instance.manifest.id, f"<<B>{instance.manifest.id}</B><BR/>{vt100.wordwrap(instance.manifest.decription, 40,newline='<BR/>')}>",
-                   shape=shape, style="filled", fillcolor=fillcolor)
+            g.node(
+                component.id,
+                f"<<B>{component.id}</B><BR/>{vt100.wordwrap(component.decription, 40,newline='<BR/>')}>",
+                shape=shape,
+                style="filled",
+                fillcolor=fillcolor,
+            )

-            for req in instance.manifest.requires:
-                g.edge(instance.manifest.id, req)
+            for req in component.requires:
+                g.edge(component.id, req)

-            for req in instance.manifest.provides:
-                isChosen = context.target.routing.get(
-                    req, None) == instance.manifest.id
+            for req in component.provides:
+                isChosen = target.routing.get(req, None) == component.id

-                g.edge(req, instance.manifest.id, arrowhead="none", color=(
-                    "blue" if isChosen else "black"))
+                g.edge(
+                    req,
+                    component.id,
+                    arrowhead="none",
+                    color=("blue" if isChosen else "black"),
+                )
        elif showDisabled:
-            g.node(instance.manifest.id, f"<<B>{instance.manifest.id}</B><BR/>{vt100.wordwrap(instance.manifest.decription, 40,newline='<BR/>')}<BR/><BR/><I>{vt100.wordwrap(instance.disableReason, 40,newline='<BR/>')}</I>>",
-                   shape="plaintext", style="filled",   fontcolor="#999999", fillcolor="#eeeeee")
+            g.node(
+                component.id,
+                f"<<B>{component.id}</B><BR/>{vt100.wordwrap(component.decription, 40,newline='<BR/>')}<BR/><BR/><I>{vt100.wordwrap(str(component.resolved[target.id].reason), 40,newline='<BR/>')}</I>>",
+                shape="plaintext",
+                style="filled",
+                fontcolor="#999999",
+                fillcolor="#eeeeee",
+            )

-            for req in instance.manifest.requires:
-                g.edge(instance.manifest.id, req, color="#aaaaaa")
+            for req in component.requires:
+                g.edge(component.id, req, color="#aaaaaa")

-            for req in instance.manifest.provides:
-                g.edge(req, instance.manifest.id,
-                       arrowhead="none", color="#aaaaaa")
+            for req in component.provides:
+                g.edge(req, component.id, arrowhead="none", color="#aaaaaa")

-    g.view(filename=os.path.join(context.builddir(), "graph.gv"))
+    g.view(filename=str(target.builddir / "graph.gv"))
+
+
+@cli.command("g", "graph", "Show the dependency graph")
+def graphCmd(args: cli.Args):
+    registry = model.Registry.use(args)
+    target = model.Target.use(args)
+
+    scope = cast(Optional[str], args.tryConsumeOpt("scope"))
+    onlyLibs = args.consumeOpt("only-libs", False) is True
+    showDisabled = args.consumeOpt("show-disabled", False) is True
+
+    view(registry, target, scope=scope, showExe=not onlyLibs, showDisabled=showDisabled)
--- a/cutekit/jexpr.py
+++ b/cutekit/jexpr.py
@ -1,17 +1,17 @@
 import os
-from typing import Any, cast, Callable, Final
 import json
+from pathlib import Path

-import cutekit.shell as shell
-from cutekit.compat import ensureSupportedManifest
+from typing import Any, cast, Callable, Final
+from . import shell, compat

 Json = Any
 Builtin = Callable[..., Json]

 BUILTINS: Final[dict[str, Builtin]] = {
    "uname": lambda arg, ctx: getattr(shell.uname(), arg).lower(),
-    "include": lambda arg, ctx: evalRead(arg, compatibilityCheck=False),
-    "evalRead": lambda arg, ctx: evalRead(arg, compatibilityCheck=False),
+    "include": lambda arg, ctx: evalRead(arg),
+    "evalRead": lambda arg, ctx: evalRead(arg),
    "join": lambda lhs, rhs, ctx: cast(
        Json, {**lhs, **rhs} if isinstance(lhs, dict) else lhs + rhs
    ),
@ -28,7 +28,7 @@ BUILTINS: Final[dict[str, Builtin]] = {
 }


-def eval(jexpr: Json, filePath: str) -> Json:
+def eval(jexpr: Json, filePath: Path) -> Json:
    if isinstance(jexpr, dict):
        result = {}
        for k in cast(dict[str, Json], jexpr):
@ -50,7 +50,7 @@ def eval(jexpr: Json, filePath: str) -> Json:
        return jexpr


-def read(path: str) -> Json:
+def read(path: Path) -> Json:
    try:
        with open(path, "r") as f:
            return json.load(f)
@ -58,8 +58,6 @@ def read(path: str) -> Json:
        raise RuntimeError(f"Failed to read {path}")


-def evalRead(path: str, compatibilityCheck: bool = True) -> Json:
+def evalRead(path: Path) -> Json:
    data = read(path)
-    if compatibilityCheck:
-        ensureSupportedManifest(data, path)
    return eval(data, path)
--- a/cutekit/mixins.py
+++ b/cutekit/mixins.py
@ -1,31 +1,29 @@
 from typing import Callable
-from cutekit.model import TargetManifest, Tools

-Mixin = Callable[[TargetManifest, Tools], Tools]
+from . import model
+
+Mixin = Callable[[model.Target, model.Tools], model.Tools]


-def patchToolArgs(tools: Tools, toolSpec: str, args: list[str]):
+def patchToolArgs(tools: model.Tools, toolSpec: str, args: list[str]):
    tools[toolSpec].args += args


-def prefixToolCmd(tools: Tools, toolSpec: str, prefix: str):
+def prefixToolCmd(tools: model.Tools, toolSpec: str, prefix: str):
    tools[toolSpec].cmd = prefix + " " + tools[toolSpec].cmd


-def mixinCache(target: TargetManifest, tools: Tools) -> Tools:
+def mixinCache(target: model.Target, tools: model.Tools) -> model.Tools:
    prefixToolCmd(tools, "cc", "ccache")
    prefixToolCmd(tools, "cxx", "ccache")
    return tools


 def makeMixinSan(san: str) -> Mixin:
-    def mixinSan(target: TargetManifest, tools: Tools) -> Tools:
-        patchToolArgs(
-            tools, "cc", [f"-fsanitize={san}"])
-        patchToolArgs(
-            tools, "cxx", [f"-fsanitize={san}"])
-        patchToolArgs(
-            tools, "ld", [f"-fsanitize={san}"])
+    def mixinSan(target: model.Target, tools: model.Tools) -> model.Tools:
+        patchToolArgs(tools, "cc", [f"-fsanitize={san}"])
+        patchToolArgs(tools, "cxx", [f"-fsanitize={san}"])
+        patchToolArgs(tools, "ld", [f"-fsanitize={san}"])

        return tools

@ -33,7 +31,7 @@ def makeMixinSan(san: str) -> Mixin:


 def makeMixinOptimize(level: str) -> Mixin:
-    def mixinOptimize(target: TargetManifest, tools: Tools) -> Tools:
+    def mixinOptimize(target: model.Target, tools: model.Tools) -> model.Tools:
        patchToolArgs(tools, "cc", [f"-O{level}"])
        patchToolArgs(tools, "cxx", [f"-O{level}"])

@ -42,7 +40,7 @@ def makeMixinOptimize(level: str) -> Mixin:
    return mixinOptimize


-def mixinDebug(target: TargetManifest, tools: Tools) -> Tools:
+def mixinDebug(target: model.Target, tools: model.Tools) -> model.Tools:
    patchToolArgs(tools, "cc", ["-g", "-gdwarf-4"])
    patchToolArgs(tools, "cxx", ["-g", "-gdwarf-4"])

@ -50,7 +48,7 @@ def mixinDebug(target: TargetManifest, tools: Tools) -> Tools:


 def makeMixinTune(tune: str) -> Mixin:
-    def mixinTune(target: TargetManifest, tools: Tools) -> Tools:
+    def mixinTune(target: model.Target, tools: model.Tools) -> model.Tools:
        patchToolArgs(tools, "cc", [f"-mtune={tune}"])
        patchToolArgs(tools, "cxx", [f"-mtune={tune}"])

--- a/cutekit/model.py
+++ b/cutekit/model.py
@ -1,17 +1,23 @@
 import os
-from enum import Enum
-from typing import Any
 import logging

-from cutekit.jexpr import Json

+from enum import Enum
+from typing import Any, Generator, Optional, Type, cast
+from pathlib import Path
+from dataclasses_json import DataClassJsonMixin
+from dataclasses import dataclass, field

-logger = logging.getLogger(__name__)
+from cutekit import const, shell
+
+from . import jexpr, compat, utils, cli, vt100
+
+_logger = logging.getLogger(__name__)

 Props = dict[str, Any]


-class Type(Enum):
+class Kind(Enum):
    UNKNOWN = "unknown"
    PROJECT = "project"
    TARGET = "target"
@ -19,260 +25,290 @@ class Type(Enum):
    EXE = "exe"


-class Manifest:
-    id: str = ""
-    type: Type = Type.UNKNOWN
-    path: str = ""
-
-    def __init__(
-        self, json: Json = None, path: str = "", strict: bool = True, **kwargs: Any
-    ):
-        if json is not None:
-            if "id" not in json:
-                raise RuntimeError("Missing id")
-
-            self.id = json["id"]
-
-            if "type" not in json and strict:
-                raise RuntimeError("Missing type")
-
-            self.type = Type(json["type"])
-
-            self.path = path
-        elif strict:
-            raise RuntimeError("Missing json")
-
-        for key in kwargs:
-            setattr(self, key, kwargs[key])
-
-    def toJson(self) -> Json:
-        return {"id": self.id, "type": self.type.value, "path": self.path}
-
-    def __str__(self):
-        return f"Manifest(id={self.id}, type={self.type}, path={self.path})"
-
-    def __repr__(self):
-        return f"Manifest({id})"
-
-    def dirname(self) -> str:
-        return os.path.dirname(self.path)
+# --- Manifest --------------------------------------------------------------- #


-class Extern:
-    git: str = ""
-    tag: str = ""
+@dataclass
+class Manifest(DataClassJsonMixin):
+    id: str
+    type: Kind = field(default=Kind.UNKNOWN)
+    path: Path = field(default=Path())

-    def __init__(self, json: Json = None, strict: bool = True, **kwargs: Any):
-        if json is not None:
-            if "git" not in json and strict:
-                raise RuntimeError("Missing git")
+    @staticmethod
+    def parse(path: Path, data: dict[str, Any]) -> "Manifest":
+        """
+        Parse a manifest from a given path and data
+        """
+        compat.ensureSupportedManifest(data, path)
+        kind = Kind(data["type"])
+        del data["$schema"]
+        obj = KINDS[kind].from_dict(data)
+        obj.path = path
+        return obj

-            self.git = json["git"]
+    @staticmethod
+    def load(path: Path) -> "Manifest":
+        """
+        Load a manifest from a given path
+        """
+        return Manifest.parse(path, jexpr.evalRead(path))

-            if "tag" not in json and strict:
-                raise RuntimeError("Missing tag")
+    def dirname(self) -> Path:
+        """
+        Return the directory of the manifest
+        """
+        return self.path.parent

-            self.tag = json["tag"]
-        elif strict:
-            raise RuntimeError("Missing json")
+    def subpath(self, path) -> Path:
+        return self.dirname() / path

-        for key in kwargs:
-            setattr(self, key, kwargs[key])
-
-    def toJson(self) -> Json:
-        return {"git": self.git, "tag": self.tag}
-
-    def __str__(self):
-        return f"Extern(git={self.git}, tag={self.tag})"
-
-    def __repr__(self):
-        return f"Extern({self.git})"
+    def ensureType(self, t: Type[utils.T]) -> utils.T:
+        """
+        Ensure that the manifest is of a given type
+        """
+        if not isinstance(self, t):
+            raise RuntimeError(
+                f"{self.path} should be a {type.__name__} manifest but is a {self.__class__.__name__} manifest"
+            )
+        return cast(utils.T, self)


-class ProjectManifest(Manifest):
-    description: str = ""
-    extern: dict[str, Extern] = {}
+# --- Project ---------------------------------------------------------------- #

-    def __init__(
-        self, json: Json = None, path: str = "", strict: bool = True, **kwargs: Any
-    ):
-        if json is not None:
-            if "description" not in json and strict:
-                raise RuntimeError("Missing description")
-
-            self.description = json["description"]
-
-            self.extern = {k: Extern(v) for k, v in json.get("extern", {}).items()}
-        elif strict:
-            raise RuntimeError("Missing json")
-
-        super().__init__(json, path, strict, **kwargs)
-
-    def toJson(self) -> Json:
-        return {
-            **super().toJson(),
-            "description": self.description,
-            "extern": {k: v.toJson() for k, v in self.extern.items()},
-        }
-
-    def __str__(self):
-        return f"ProjectManifest(id={self.id}, type={self.type}, path={self.path}, description={self.description}, extern={self.extern})"
-
-    def __repr__(self):
-        return f"ProjectManifest({self.id})"
+_project: Optional["Project"] = None


-class Tool:
-    cmd: str = ""
-    args: list[str] = []
-    files: list[str] = []
+@dataclass
+class Extern(DataClassJsonMixin):
+    git: str
+    tag: str

-    def __init__(self, json: Json = None, strict: bool = True, **kwargs: Any):
-        if json is not None:
-            if "cmd" not in json and strict:
-                raise RuntimeError("Missing cmd")

-            self.cmd = json.get("cmd", self.cmd)
+@dataclass
+class Project(Manifest):
+    description: str = field(default="(No description)")
+    extern: dict[str, Extern] = field(default_factory=dict)

-            if "args" not in json and strict:
-                raise RuntimeError("Missing args")
+    @property
+    def externDirs(self) -> list[Path]:
+        res = map(lambda e: const.EXTERN_DIR / e, self.extern.keys())
+        return list(res)

-            self.args = json.get("args", [])
+    @staticmethod
+    def root() -> Optional[Path]:
+        """
+        Find the root of the project by looking for a project.json
+        """
+        cwd = Path.cwd()
+        while str(cwd) != cwd.root:
+            if (cwd / "project.json").is_file():
+                return cwd
+            cwd = cwd.parent
+        return None

-            self.files = json.get("files", [])
-        elif strict:
-            raise RuntimeError("Missing json")
+    @staticmethod
+    def chdir() -> None:
+        """
+        Change the current working directory to the root of the project
+        """
+        path = Project.root()
+        if path is None:
+            raise RuntimeError(
+                "No project.json found in this directory or any parent directory"
+            )
+        os.chdir(path)

-        for key in kwargs:
-            setattr(self, key, kwargs[key])
+    @staticmethod
+    def at(path: str | Path) -> Optional["Project"]:
+        path = Path(path) / "project.json"
+        if not path.exists():
+            return None
+        return Manifest.load(path).ensureType(Project)

-    def toJson(self) -> Json:
-        return {"cmd": self.cmd, "args": self.args, "files": self.files}
+    @staticmethod
+    def ensure() -> "Project":
+        root = Project.root()
+        if root is None:
+            raise RuntimeError(
+                "No project.json found in this directory or any parent directory"
+            )
+        os.chdir(root)
+        return Manifest.load(Path(root / "project.json")).ensureType(
+            Project
+        )

-    def __str__(self):
-        return f"Tool(cmd={self.cmd}, args={self.args}, files={self.files})"
+    @staticmethod
+    def fetchs(extern: dict[str | Path, Extern]):
+        for extSpec, ext in extern.items():
+            extPath = const.EXTERN_DIR / extSpec

-    def __repr__(self):
-        return f"Tool({self.cmd})"
+            if extPath.exists():
+                print(f"Skipping {extSpec}, already installed")
+                continue
+
+            print(f"Installing {extSpec}-{ext.tag} from {ext.git}...")
+            shell.popen(
+                "git",
+                "clone",
+                "--quiet",
+                "--depth",
+                "1",
+                "--branch",
+                ext.tag,
+                ext.git,
+                extPath,
+            )
+            project = Project.at(extPath)
+            if project is not None:
+                Project.fetchs(project.extern)
+
+    @staticmethod
+    def use(args: cli.Args) -> "Project":
+        global _project
+        if _project is None:
+            _project = Project.ensure()
+        return _project
+
+
+@cli.command("i", "install", "Install required external packages")
+def installCmd(args: cli.Args):
+    project = Project.use(args)
+    Project.fetchs(project.extern)
+
+
+@cli.command("I", "init", "Initialize a new project")
+def initCmd(args: cli.Args):
+    import requests
+
+    repo = args.consumeOpt("repo", const.DEFAULT_REPO_TEMPLATES)
+    list = args.consumeOpt("list")
+
+    template = args.consumeArg()
+    name = Path(args.consumeArg())
+
+    _logger.info("Fetching registry...")
+    r = requests.get(f"https://raw.githubusercontent.com/{repo}/main/registry.json")
+
+    if r.status_code != 200:
+        _logger.error("Failed to fetch registry")
+        exit(1)
+
+    registry = r.json()
+
+    if list:
+        print(
+            "\n".join(f"* {entry['id']} - {entry['description']}" for entry in registry)
+        )
+        return
+
+    if not template:
+        raise RuntimeError("Template not specified")
+
+    def template_match(t: jexpr.Json) -> str:
+        return t["id"] == template
+
+    if not any(filter(template_match, registry)):
+        raise LookupError(f"Couldn't find a template named {template}")
+
+    if not name:
+        _logger.info(f"No name was provided, defaulting to {template}")
+        name = template
+
+    if name.exists():
+        raise RuntimeError(f"Directory {name} already exists")
+
+    print(f"Creating project {name} from template {template}...")
+    shell.cloneDir(f"https://github.com/{repo}", template, name)
+    print(f"Project {name} created\n")
+
+    print("We suggest that you begin by typing:")
+    print(f"  {vt100.GREEN}cd {name}{vt100.RESET}")
+    print(
+        f"  {vt100.GREEN}cutekit install{vt100.BRIGHT_BLACK} # Install external packages{vt100.RESET}"
+    )
+    print(
+        f"  {vt100.GREEN}cutekit build{vt100.BRIGHT_BLACK}  # Build the project{vt100.RESET}"
+    )
+
+
+# --- Target ----------------------------------------------------------------- #
+
+
+@dataclass
+class Tool(DataClassJsonMixin):
+    cmd: str = field(default="")
+    args: list[str] = field(default_factory=list)
+    files: list[str] = field(default_factory=list)


 Tools = dict[str, Tool]


-class TargetManifest(Manifest):
-    props: Props
-    tools: Tools
-    routing: dict[str, str]
+@dataclass
+class Target(Manifest):
+    props: Props = field(default_factory=dict)
+    tools: Tools = field(default_factory=dict)
+    routing: dict[str, str] = field(default_factory=dict)

-    def __init__(
-        self, json: Json = None, path: str = "", strict: bool = True, **kwargs: Any
-    ):
-        if json is not None:
-            if "props" not in json and strict:
-                raise RuntimeError("Missing props")
+    @property
+    def hashid(self) -> str:
+        return utils.hash((self.props, [v.to_dict() for k, v in self.tools.items()]))

-            self.props = json["props"]
+    @property
+    def builddir(self) -> Path:
+        return const.BUILD_DIR / f"{self.id}-{self.hashid[:8]}"

-            if "tools" not in json and strict:
-                raise RuntimeError("Missing tools")
-
-            self.tools = {k: Tool(v) for k, v in json["tools"].items()}
-
-            self.routing = json.get("routing", {})
-
-        super().__init__(json, path, strict, **kwargs)
-
-    def toJson(self) -> Json:
-        return {
-            **super().toJson(),
-            "props": self.props,
-            "tools": {k: v.toJson() for k, v in self.tools.items()},
-            "routing": self.routing,
-        }
-
-    def __repr__(self):
-        return f"TargetManifest({self.id})"
+    @staticmethod
+    def use(args: cli.Args) -> "Target":
+        registry = Registry.use(args)
+        targetSpec = str(args.consumeOpt("target", "host-" + shell.uname().machine))
+        return registry.ensure(targetSpec, Target)

    def route(self, componentSpec: str):
+        """
+        Route a component spec to a target specific component spec
+        """
        return (
            self.routing[componentSpec]
            if componentSpec in self.routing
            else componentSpec
        )

-    def cdefs(self) -> list[str]:
-        defines: list[str] = []

-        def sanatize(s: str) -> str:
-            return s.lower().replace(" ", "_").replace("-", "_").replace(".", "_")
-
-        for key in self.props:
-            prop = self.props[key]
-            propStr = str(prop)
-            if isinstance(prop, bool):
-                if prop:
-                    defines += [f"-D__ck_{sanatize(key)}__"]
-            else:
-                defines += [f"-D__ck_{sanatize(key)}_{sanatize(propStr)}__"]
-                defines += [f"-D__ck_{sanatize(key)}_value={propStr}"]
-
-        return defines
+# --- Component -------------------------------------------------------------- #


-class ComponentManifest(Manifest):
-    decription: str = "(No description)"
-    props: Props = {}
-    tools: Tools = {}
-    enableIf: dict[str, list[Any]] = {}
-    requires: list[str] = []
-    provides: list[str] = []
-    subdirs: list[str] = []
+@dataclass
+class Resolved:
+    reason: Optional[str] = None
+    resolved: list[str] = field(default_factory=list)

-    def __init__(
-        self, json: Json = None, path: str = "", strict: bool = True, **kwargs: Any
-    ):
-        if json is not None:
-            self.decription = json.get("description", self.decription)
-            self.props = json.get("props", self.props)
-            self.tools = {
-                k: Tool(v, strict=False) for k, v in json.get("tools", {}).items()
-            }
-            self.enableIf = json.get("enableIf", self.enableIf)
-            self.requires = json.get("requires", self.requires)
-            self.provides = json.get("provides", self.provides)
-            self.subdirs = list(
-                map(
-                    lambda x: os.path.join(os.path.dirname(path), x),
-                    json.get("subdirs", [""]),
-                )
-            )
+    @property
+    def enabled(self) -> bool:
+        return self.reason is None

-        super().__init__(json, path, strict, **kwargs)

-    def toJson(self) -> Json:
-        return {
-            **super().toJson(),
-            "description": self.decription,
-            "props": self.props,
-            "tools": {k: v.toJson() for k, v in self.tools.items()},
-            "enableIf": self.enableIf,
-            "requires": self.requires,
-            "provides": self.provides,
-            "subdirs": self.subdirs,
-        }
+@dataclass
+class Component(Manifest):
+    decription: str = field(default="(No description)")
+    props: Props = field(default_factory=dict)
+    tools: Tools = field(default_factory=dict)
+    enableIf: dict[str, list[Any]] = field(default_factory=dict)
+    requires: list[str] = field(default_factory=list)
+    provides: list[str] = field(default_factory=list)
+    subdirs: list[str] = field(default_factory=list)
+    injects: list[str] = field(default_factory=list)
+    resolved: dict[str, Resolved] = field(default_factory=dict)

-    def __repr__(self):
-        return f"ComponentManifest({self.id})"
-
-    def isEnabled(self, target: TargetManifest) -> tuple[bool, str]:
+    def isEnabled(self, target: Target) -> tuple[bool, str]:
        for k, v in self.enableIf.items():
            if k not in target.props:
-                logger.info(f"Component {self.id} disabled by missing {k} in target")
+                _logger.info(f"Component {self.id} disabled by missing {k} in target")
                return False, f"Missing props '{k}' in target"

            if target.props[k] not in v:
                vStrs = [f"'{str(x)}'" for x in v]
-                logger.info(
+                _logger.info(
                    f"Component {self.id} disabled by {k}={target.props[k]} not in {v}"
                )
                return (
@ -281,3 +317,298 @@ class ComponentManifest(Manifest):
                )

        return True, ""
+
+
+KINDS: dict[Kind, Type[Manifest]] = {
+    Kind.PROJECT: Project,
+    Kind.TARGET: Target,
+    Kind.LIB: Component,
+    Kind.EXE: Component,
+}
+
+# --- Dependency resolution -------------------------------------------------- #
+
+
+@dataclass
+class Resolver:
+    _registry: "Registry"
+    _target: Target
+    _mappings: dict[str, list[Component]] = field(default_factory=dict)
+    _cache: dict[str, Resolved] = field(default_factory=dict)
+    _baked = False
+
+    def _bake(self):
+        """
+        Bake the resolver by building a mapping of all
+        components that provide a given spec.
+        """
+
+        if self._baked:
+            return
+
+        for c in self._registry.iter(Component):
+            for p in c.provides + [c.id]:
+                if p not in self._mappings and [0]:
+                    self._mappings[p] = []
+                self._mappings[p].append(c)
+
+        # Overide with target routing since it has priority
+        # over component provides and id
+        for k, v in self._target.routing.items():
+            component = self._registry.lookup(v, Component)
+            self._mappings[k] = [component] if component else []
+
+        self._baked = True
+
+    def _provider(self, spec: str) -> tuple[Optional[str], str]:
+        """
+        Returns the provider for a given spec.
+        """
+        result = self._mappings.get(spec, [])
+
+        if len(result) == 1:
+            enabled, reason = result[0].isEnabled(self._target)
+            if not enabled:
+                return (None, reason)
+
+        def checkIsEnabled(c: Component) -> bool:
+            enabled, reason = c.isEnabled(self._target)
+            if not enabled:
+                _logger.info(f"Component {c.id} cannot provide '{spec}': {reason}")
+            return enabled
+
+        result = list(filter(checkIsEnabled, result))
+
+        if result == []:
+            return (None, f"No provider for '{spec}'")
+
+        if len(result) > 1:
+            ids = list(map(lambda x: x.id, result))
+            return (None, f"Multiple providers for '{spec}': {','.join(ids)}")
+
+        return (result[0].id, "")
+
+    def resolve(self, what: str, stack: list[str] = []) -> Resolved:
+        """
+        Resolve a given spec to a list of components.
+        """
+        self._bake()
+
+        if what in self._cache:
+            return self._cache[what]
+
+        keep, unresolvedReason = self._provider(what)
+
+        if not keep:
+            _logger.error(f"Dependency '{what}' not found: {unresolvedReason}")
+            self._cache[what] = Resolved(reason=unresolvedReason)
+            return self._cache[what]
+
+        if keep in self._cache:
+            return self._cache[keep]
+
+        if keep in stack:
+            raise RuntimeError(
+                f"Dependency loop while resolving '{what}': {stack} -> {keep}"
+            )
+
+        stack.append(keep)
+
+        component = self._registry.lookup(keep, Component)
+        if not component:
+            return Resolved(reason="No provider for 'myembed'")
+
+        result: list[str] = []
+
+        for req in component.requires:
+            reqResolved = self.resolve(req, stack)
+            if reqResolved.reason:
+                stack.pop()
+
+                self._cache[keep] = Resolved(reason=reqResolved.reason)
+                return self._cache[keep]
+
+            result.extend(reqResolved.resolved)
+
+        stack.pop()
+        result.insert(0, keep)
+        self._cache[keep] = Resolved(resolved=utils.uniq(result))
+        return self._cache[keep]
+
+
+# --- Registry --------------------------------------------------------------- #
+
+_registry: Optional["Registry"] = None
+
+
+@dataclass
+class Registry(DataClassJsonMixin):
+    project: Project
+    manifests: dict[str, Manifest] = field(default_factory=dict)
+
+    def _append(self, m: Manifest):
+        """
+        Append a manifest to the model
+        """
+        if m.id in self.manifests:
+            raise RuntimeError(
+                f"Duplicated manifest '{m.id}' at '{m.path}' already loaded from '{self.manifests[m.id].path}'"
+            )
+
+        self.manifests[m.id] = m
+
+    def iter(self, type: Type[utils.T]) -> Generator[utils.T, None, None]:
+        """
+        Iterate over all manifests of a given type
+        """
+
+        for m in self.manifests.values():
+            if isinstance(m, type):
+                yield m
+
+    def iterEnabled(self, target: Target) -> Generator[Component, None, None]:
+        for c in self.iter(Component):
+            resolve = c.resolved[target.id]
+            if resolve.enabled:
+                yield c
+
+    def lookup(self, name: str, type: Type[utils.T]) -> Optional[utils.T]:
+        """
+        Lookup a manifest of a given type by name
+        """
+
+        if name in self.manifests:
+            m = self.manifests[name]
+            if isinstance(m, type):
+                return m
+
+        return None
+
+    def ensure(self, name: str, type: Type[utils.T]) -> utils.T:
+        """
+        Ensure that a manifest of a given type exists
+        and return it.
+        """
+
+        m = self.lookup(name, type)
+        if not m:
+            raise RuntimeError(f"Could not find {type.__name__} '{name}'")
+        return m
+
+    @staticmethod
+    def use(args: cli.Args) -> "Registry":
+        global _registry
+
+        if _registry is not None:
+            return _registry
+
+        project = Project.use(args)
+        mixins = str(args.consumeOpt("mixins", "")).split(",")
+        if mixins == [""]:
+            mixins = []
+        props = cast(dict[str, str], args.consumePrefix("prop:"))
+
+        _registry = Registry.load(project, mixins, props)
+        return _registry
+
+    @staticmethod
+    def load(project: Project, mixins: list[str], props: Props) -> "Registry":
+        registry = Registry(project)
+        registry._append(project)
+
+        # Lookup and load all extern projects
+        for externDir in project.externDirs:
+            projectPath = externDir / "project.json"
+            manifestPath = externDir / "manifest.json"
+
+            if projectPath.exists():
+                registry._append(Manifest.load(projectPath).ensureType(Project))
+            elif manifestPath.exists():
+                # For simple library allow to have a manifest.json instead of a project.json
+                registry._append(
+                    Manifest.load(manifestPath).ensureType(Component)
+                )
+            else:
+                _logger.warn(
+                    "Extern project does not have a project.json or manifest.json"
+                )
+
+        # Load all manifests from projects
+        for project in list(registry.iter(Project)):
+            targetDir = project.parent / const.TARGETS_DIR
+            targetFiles = targetDir.glob("*.json")
+
+            for targetFile in targetFiles:
+                registry._append(Manifest.load(Path(targetFile)).ensureType(Target))
+
+            componentDir = project.parent / const.COMPONENTS_DIR
+            rootComponent = project.parent / "manifest.json"
+            componentFiles = list(componentDir.glob("manifest.json"))
+
+            if rootComponent.exists():
+                componentFiles += [rootComponent]
+
+            for componentFile in componentFiles:
+                registry._append(
+                    Manifest.load(componentFile).ensureType(Component)
+                )
+
+        # Resolve all dependencies for all targets
+        for target in registry.iter(Target):
+            target.props |= props
+            resolver = Resolver(registry, target)
+
+            # Apply injects
+            for c in registry.iter(Component):
+                if c.isEnabled(target)[0]:
+                    for inject in c.injects:
+                        victim = registry.lookup(inject, Component)
+                        if not victim:
+                            raise RuntimeError(f"Cannot find component '{inject}'")
+                        victim.requires += [c.id]
+
+            # Resolve all components
+            for c in registry.iter(Component):
+                resolved = resolver.resolve(c.id)
+                if resolved.reason:
+                    _logger.info(f"Component '{c.id}' disabled: {resolved.reason}")
+                c.resolved[target.id] = resolved
+
+            # Resolve tooling
+            tools: Tools = target.tools
+            from . import mixins as mxs
+
+            for mix in mixins:
+                mixin = mxs.byId(mix)
+                tools = mixin(target, tools)
+
+            # Apply tooling from components
+            for c in registry.iter(Component):
+                if c.resolved[target.id].enabled:
+                    for k, v in c.tools.items():
+                        tools[k].args += v.args
+
+        return registry
+
+
+@cli.command("l", "list", "List all components and targets")
+def listCmd(args: cli.Args):
+    registry = Registry.use(args)
+
+    components = list(registry.iter(Component))
+    targets = list(registry.iter(Target))
+
+    vt100.title("Components")
+    if len(components) == 0:
+        print(vt100.p("(No components available)"))
+    else:
+        print(vt100.p(", ".join(map(lambda m: m.id, components))))
+    print()
+
+    vt100.title("Targets")
+
+    if len(targets) == 0:
+        print(vt100.p("(No targets available)"))
+    else:
+        print(vt100.p(", ".join(map(lambda m: m.id, targets))))
+    print()
--- a/cutekit/ninja.py
+++ b/cutekit/ninja.py
@ -23,13 +23,13 @@ use Python.
 """

 import textwrap
-from typing import TextIO, Union

-from cutekit.utils import asList
+from typing import TextIO, Union
+from . import utils


 def escapePath(word: str) -> str:
-    return word.replace('$ ', '$$ ').replace(' ', '$ ').replace(':', '$:')
+    return word.replace("$ ", "$$ ").replace(" ", "$ ").replace(":", "$:")


 VarValue = Union[int, str, list[str], None]
@ -42,92 +42,98 @@ class Writer(object):
        self.width = width

    def newline(self) -> None:
-        self.output.write('\n')
+        self.output.write("\n")

    def comment(self, text: str) -> None:
-        for line in textwrap.wrap(text, self.width - 2, break_long_words=False,
-                                  break_on_hyphens=False):
-            self.output.write('# ' + line + '\n')
+        for line in textwrap.wrap(
+            text, self.width - 2, break_long_words=False, break_on_hyphens=False
+        ):
+            self.output.write("# " + line + "\n")

-    def separator(self, text : str) -> None:
-        self.output.write(f"# --- {text} ---" + '-' *
-                          (self.width - 10 - len(text)) + " #\n\n")
+    def separator(self, text: str) -> None:
+        self.output.write(
+            f"# --- {text} ---" + "-" * (self.width - 10 - len(text)) + " #\n\n"
+        )

    def variable(self, key: str, value: VarValue, indent: int = 0) -> None:
        if value is None:
            return
        if isinstance(value, list):
-            value = ' '.join(filter(None, value))  # Filter out empty strings.
-        self._line('%s = %s' % (key, value), indent)
+            value = " ".join(filter(None, value))  # Filter out empty strings.
+        self._line("%s = %s" % (key, value), indent)

    def pool(self, name: str, depth: int) -> None:
-        self._line('pool %s' % name)
-        self.variable('depth', depth, indent=1)
+        self._line("pool %s" % name)
+        self.variable("depth", depth, indent=1)

-    def rule(self,
-             name: str,
-             command: VarValue,
-             description: Union[str, None] = None,
-             depfile: VarValue = None,
-             generator: VarValue = False,
-             pool: VarValue = None,
-             restat: bool = False,
-             rspfile: VarValue = None,
-             rspfile_content: VarValue = None,
-             deps: VarValue = None) -> None:
-        self._line('rule %s' % name)
-        self.variable('command', command, indent=1)
+    def rule(
+        self,
+        name: str,
+        command: VarValue,
+        description: Union[str, None] = None,
+        depfile: VarValue = None,
+        generator: VarValue = False,
+        pool: VarValue = None,
+        restat: bool = False,
+        rspfile: VarValue = None,
+        rspfile_content: VarValue = None,
+        deps: VarValue = None,
+    ) -> None:
+        self._line("rule %s" % name)
+        self.variable("command", command, indent=1)
        if description:
-            self.variable('description', description, indent=1)
+            self.variable("description", description, indent=1)
        if depfile:
-            self.variable('depfile', depfile, indent=1)
+            self.variable("depfile", depfile, indent=1)
        if generator:
-            self.variable('generator', '1', indent=1)
+            self.variable("generator", "1", indent=1)
        if pool:
-            self.variable('pool', pool, indent=1)
+            self.variable("pool", pool, indent=1)
        if restat:
-            self.variable('restat', '1', indent=1)
+            self.variable("restat", "1", indent=1)
        if rspfile:
-            self.variable('rspfile', rspfile, indent=1)
+            self.variable("rspfile", rspfile, indent=1)
        if rspfile_content:
-            self.variable('rspfile_content', rspfile_content, indent=1)
+            self.variable("rspfile_content", rspfile_content, indent=1)
        if deps:
-            self.variable('deps', deps, indent=1)
+            self.variable("deps", deps, indent=1)

-    def build(self,
-              outputs: Union[str, list[str]],
-              rule: str,
-              inputs: Union[VarPath, None],
-              implicit: VarPath = None,
-              order_only: VarPath = None,
-              variables: Union[dict[str, str], None] = None,
-              implicit_outputs: VarPath = None,
-              pool: Union[str, None] = None,
-              dyndep: Union[str, None] = None) -> list[str]:
-        outputs = asList(outputs)
+    def build(
+        self,
+        outputs: Union[str, list[str]],
+        rule: str,
+        inputs: Union[VarPath, None],
+        implicit: VarPath = None,
+        order_only: VarPath = None,
+        variables: Union[dict[str, str], None] = None,
+        implicit_outputs: VarPath = None,
+        pool: Union[str, None] = None,
+        dyndep: Union[str, None] = None,
+    ) -> list[str]:
+        outputs = utils.asList(outputs)
        out_outputs = [escapePath(x) for x in outputs]
-        all_inputs = [escapePath(x) for x in asList(inputs)]
+        all_inputs = [escapePath(x) for x in utils.asList(inputs)]

        if implicit:
-            implicit = [escapePath(x) for x in asList(implicit)]
-            all_inputs.append('|')
+            implicit = [escapePath(x) for x in utils.asList(implicit)]
+            all_inputs.append("|")
            all_inputs.extend(implicit)
        if order_only:
-            order_only = [escapePath(x) for x in asList(order_only)]
-            all_inputs.append('||')
+            order_only = [escapePath(x) for x in utils.asList(order_only)]
+            all_inputs.append("||")
            all_inputs.extend(order_only)
        if implicit_outputs:
-            implicit_outputs = [escapePath(x)
-                                for x in asList(implicit_outputs)]
-            out_outputs.append('|')
+            implicit_outputs = [escapePath(x) for x in utils.asList(implicit_outputs)]
+            out_outputs.append("|")
            out_outputs.extend(implicit_outputs)

-        self._line('build %s: %s' % (' '.join(out_outputs),
-                                     ' '.join([rule] + all_inputs)))
+        self._line(
+            "build %s: %s" % (" ".join(out_outputs), " ".join([rule] + all_inputs))
+        )
        if pool is not None:
-            self._line('  pool = %s' % pool)
+            self._line("  pool = %s" % pool)
        if dyndep is not None:
-            self._line('  dyndep = %s' % dyndep)
+            self._line("  dyndep = %s" % dyndep)

        if variables:
            iterator = iter(variables.items())
@ -138,58 +144,59 @@ class Writer(object):
        return outputs

    def include(self, path: str) -> None:
-        self._line('include %s' % path)
+        self._line("include %s" % path)

    def subninja(self, path: str) -> None:
-        self._line('subninja %s' % path)
+        self._line("subninja %s" % path)

    def default(self, paths: VarPath) -> None:
-        self._line('default %s' % ' '.join(asList(paths)))
+        self._line("default %s" % " ".join(utils.asList(paths)))

    def _count_dollars_before_index(self, s: str, i: int) -> int:
        """Returns the number of '$' characters right in front of s[i]."""
        dollar_count = 0
        dollar_index = i - 1
-        while dollar_index > 0 and s[dollar_index] == '$':
+        while dollar_index > 0 and s[dollar_index] == "$":
            dollar_count += 1
            dollar_index -= 1
        return dollar_count

    def _line(self, text: str, indent: int = 0) -> None:
        """Write 'text' word-wrapped at self.width characters."""
-        leading_space = '  ' * indent
+        leading_space = "  " * indent
        while len(leading_space) + len(text) > self.width:
            # The text is too wide; wrap if possible.

            # Find the rightmost space that would obey our width constraint and
            # that's not an escaped space.
-            available_space = self.width - len(leading_space) - len(' $')
+            available_space = self.width - len(leading_space) - len(" $")
            space = available_space
            while True:
-                space = text.rfind(' ', 0, space)
-                if (space < 0 or
-                        self._count_dollars_before_index(text, space) % 2 == 0):
+                space = text.rfind(" ", 0, space)
+                if space < 0 or self._count_dollars_before_index(text, space) % 2 == 0:
                    break

            if space < 0:
                # No such space; just use the first unescaped space we can find.
                space = available_space - 1
                while True:
-                    space = text.find(' ', space + 1)
-                    if (space < 0 or
-                            self._count_dollars_before_index(text, space) % 2 == 0):
+                    space = text.find(" ", space + 1)
+                    if (
+                        space < 0
+                        or self._count_dollars_before_index(text, space) % 2 == 0
+                    ):
                        break
            if space < 0:
                # Give up on breaking.
                break

-            self.output.write(leading_space + text[0:space] + ' $\n')
-            text = text[space+1:]
+            self.output.write(leading_space + text[0:space] + " $\n")
+            text = text[space + 1 :]

            # Subsequent lines are continuations, so indent them.
-            leading_space = '  ' * (indent+2)
+            leading_space = "  " * (indent + 2)

-        self.output.write(leading_space + text + '\n')
+        self.output.write(leading_space + text + "\n")

    def close(self) -> None:
        self.output.close()
@ -198,6 +205,6 @@ class Writer(object):
 def escape(string: str) -> str:
    """Escape a string such that it can be embedded into a Ninja file without
    further interpretation."""
-    assert '\n' not in string, 'Ninja syntax does not allow newlines'
+    assert "\n" not in string, "Ninja syntax does not allow newlines"
    # We only have one special metacharacter: '$'.
-    return string.replace('$', '$$')
+    return string.replace("$", "$$")
--- a/cutekit/plugins.py
+++ b/cutekit/plugins.py
@ -1,18 +1,19 @@
 import os
 import logging

-from cutekit import shell, project, const, context
+from . import shell, model, const

 import importlib.util as importlib

-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
+

 def load(path: str):
-    logger.info(f"Loading plugin {path}")
+    _logger.info(f"Loading plugin {path}")
    spec = importlib.spec_from_file_location("plugin", path)

    if not spec or not spec.loader:
-        logger.error(f"Failed to load plugin {path}")
+        _logger.error(f"Failed to load plugin {path}")
        return None

    module = importlib.module_from_spec(spec)
@ -20,25 +21,23 @@ def load(path: str):


 def loadAll():
-    logger.info("Loading plugins...")
+    _logger.info("Loading plugins...")

-    projectRoot = project.root()
+    root = model.Project.root()

-    if projectRoot is None:
-        logger.info("Not in project, skipping plugin loading")
+    if root is None:
+        _logger.info("Not in project, skipping plugin loading")
        return

-    pj = context.loadProject(projectRoot)
-    paths = list(map(lambda e: os.path.join(const.EXTERN_DIR, e),  pj.extern.keys())) + ["."]
+    project = model.Project.at(root)
+    paths = list(map(lambda e: const.EXTERN_DIR / e, project.extern.keys())) + ["."]

    for dirname in paths:
-        pluginDir = os.path.join(projectRoot, dirname, const.META_DIR, "plugins")
+        pluginDir = root / dirname / const.META_DIR / "plugins"

-        for files in shell.readdir(pluginDir):
-            if files.endswith(".py"):
-                plugin = load(os.path.join(pluginDir, files))
-
-                if plugin:
-                    logger.info(f"Loaded plugin {plugin.name}")
-                    plugin.init()
+        for script in pluginDir.glob("*.py"):
+            plugin = load(script)

+            if plugin:
+                _logger.info(f"Loaded plugin {plugin.name}")
+                plugin.init()
--- a/cutekit/project.py
+++ b/cutekit/project.py
@ -1,20 +0,0 @@
-import os
-from typing import Optional
-
-
-def root() -> Optional[str]:
-    cwd = os.getcwd()
-    while cwd != "/":
-        if os.path.isfile(os.path.join(cwd, "project.json")):
-            return cwd
-        cwd = os.path.dirname(cwd)
-    return None
-
-
-def chdir() -> None:
-    projectRoot = root()
-    if projectRoot is None:
-        raise RuntimeError(
-            "No project.json found in this directory or any parent directory")
-
-    os.chdir(projectRoot)
--- a/cutekit/rules.py
+++ b/cutekit/rules.py
@ -9,7 +9,15 @@ class Rule:
    args: list[str]
    deps: Optional[str] = None

-    def __init__(self, id: str,  fileIn: list[str], fileOut: list[str], rule: str, args: list[str] = [], deps: Optional[str] = None):
+    def __init__(
+        self,
+        id: str,
+        fileIn: list[str],
+        fileOut: list[str],
+        rule: str,
+        args: list[str] = [],
+        deps: Optional[str] = None,
+    ):
        self.id = id
        self.fileIn = fileIn
        self.fileOut = fileOut
@ -19,16 +27,22 @@ class Rule:


 rules: dict[str, Rule] = {
-    "cc": Rule("cc", ["*.c"], ["*.o"], "-c -o $out $in -MD -MF $out.d $flags $cincs $cdefs", ["-std=gnu2x",
-                                                                                              "-Wall",
-                                                                                              "-Wextra",
-                                                                                              "-Werror"], "$out.d"),
-    "cxx": Rule("cxx", ["*.cpp", "*.cc", "*.cxx"], ["*.o"], "-c -o $out $in -MD -MF $out.d $flags $cincs $cdefs", ["-std=gnu++2b",
-                                                                                                                   "-Wall",
-                                                                                                                   "-Wextra",
-                                                                                                                   "-Werror",
-                                                                                                                   "-fno-exceptions",
-                                                                                                                   "-fno-rtti"], "$out.d"),
+    "cc": Rule(
+        "cc",
+        ["*.c"],
+        ["*.o"],
+        "-c -o $out $in -MD -MF $out.d $flags $cincs $cdefs",
+        ["-std=gnu2x", "-Wall", "-Wextra", "-Werror"],
+        "$out.d",
+    ),
+    "cxx": Rule(
+        "cxx",
+        ["*.cpp", "*.cc", "*.cxx"],
+        ["*.o"],
+        "-c -o $out $in -MD -MF $out.d $flags $cincs $cdefs",
+        ["-std=gnu++2b", "-Wall", "-Wextra", "-Werror", "-fno-exceptions", "-fno-rtti"],
+        "$out.d",
+    ),
    "as": Rule("as", ["*.s", "*.asm", "*.S"], ["*.o"], "-o $out $in $flags"),
    "ar": Rule("ar", ["*.o"], ["*.a"], "$flags $out $in"),
    "ld": Rule("ld", ["*.o", "*.a"], ["*.out"], "-o $out $in $flags"),
--- a/cutekit/shell.py
+++ b/cutekit/shell.py
@ -12,14 +12,17 @@ import logging
 import tempfile


+from pathlib import Path
 from typing import Optional
-from cutekit import const
+from . import const

-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)


 class Uname:
-    def __init__(self, sysname: str, nodename: str, release: str, version: str, machine: str):
+    def __init__(
+        self, sysname: str, nodename: str, release: str, version: str, machine: str
+    ):
        self.sysname = sysname
        self.nodename = nodename
        self.release = release
@ -47,79 +50,30 @@ def sha256sum(path: str) -> str:
        return hashlib.sha256(f.read()).hexdigest()


-def find(path: str | list[str], wildcards: list[str] = [], recusive: bool = True) -> list[str]:
-    logger.info(f"Looking for files in {path} matching {wildcards}")
+def rmrf(path: Path) -> bool:
+    _logger.info(f"Removing directory {path}")

-    result: list[str] = []
-
-    if isinstance(path, list):
-        for p in path:
-            result += find(p, wildcards, recusive)
-        return result
-
-    if not os.path.isdir(path):
-        return []
-
-    if recusive:
-        for root, _, files in os.walk(path):
-            for f in files:
-                if len(wildcards) == 0:
-                    result.append(os.path.join(root, f))
-                else:
-                    for wildcard in wildcards:
-                        if fnmatch.fnmatch(f, wildcard):
-                            result.append(os.path.join(root, f))
-                            break
-    else:
-        for f in os.listdir(path):
-            if len(wildcards) == 0:
-                result.append(os.path.join(path, f))
-            else:
-                for wildcard in wildcards:
-                    if fnmatch.fnmatch(f, wildcard):
-                        result.append(os.path.join(path, f))
-                        break
-
-    return result
-
-
-def mkdir(path: str) -> str:
-    logger.info(f"Creating directory {path}")
-
-    try:
-        os.makedirs(path)
-    except OSError as exc:
-        if not (exc.errno == errno.EEXIST and os.path.isdir(path)):
-            raise
-    return path
-
-
-def rmrf(path: str) -> bool:
-    logger.info(f"Removing directory {path}")
-
-    if not os.path.exists(path):
+    if not path.exists():
        return False
    shutil.rmtree(path, ignore_errors=True)
    return True


-def wget(url: str, path: Optional[str] = None) -> str:
+def wget(url: str, path: Optional[Path] = None) -> Path:
    import requests

    if path is None:
-        path = os.path.join(
-            const.CACHE_DIR,
-            hashlib.sha256(url.encode('utf-8')).hexdigest())
+        path = const.CACHE_DIR / hashlib.sha256(url.encode("utf-8")).hexdigest()

-    if os.path.exists(path):
+    if path.exists():
        return path

-    logger.info(f"Downloading {url} to {path}")
+    _logger.info(f"Downloading {url} to {path}")

    r = requests.get(url, stream=True)
    r.raise_for_status()
-    mkdir(os.path.dirname(path))
-    with open(path, 'wb') as f:
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with path.open("wb") as f:
        for chunk in r.iter_content(chunk_size=8192):
            if chunk:
                f.write(chunk)
@ -128,17 +82,20 @@ def wget(url: str, path: Optional[str] = None) -> str:


 def exec(*args: str, quiet: bool = False) -> bool:
-    logger.info(f"Executing {args}")
+    _logger.info(f"Executing {args}")

    try:
        proc = subprocess.run(
-            args, stdout=sys.stdout if not quiet else subprocess.PIPE, stderr=sys.stderr if not quiet else subprocess.PIPE)
+            args,
+            stdout=sys.stdout if not quiet else subprocess.PIPE,
+            stderr=sys.stderr if not quiet else subprocess.PIPE,
+        )

        if proc.stdout:
-            logger.info(proc.stdout.decode('utf-8'))
+            _logger.info(proc.stdout.decode("utf-8"))

        if proc.stderr:
-            logger.error(proc.stderr.decode('utf-8'))
+            _logger.error(proc.stderr.decode("utf-8"))

    except FileNotFoundError:
        raise RuntimeError(f"{args[0]}: Command not found")
@ -150,14 +107,13 @@ def exec(*args: str, quiet: bool = False) -> bool:
        raise RuntimeError(f"{args[0]}: Segmentation fault")

    if proc.returncode != 0:
-        raise RuntimeError(
-            f"{args[0]}: Process exited with code {proc.returncode}")
+        raise RuntimeError(f"{args[0]}: Process exited with code {proc.returncode}")

    return True


 def popen(*args: str) -> str:
-    logger.info(f"Executing {args}")
+    _logger.info(f"Executing {args}")

    try:
        proc = subprocess.run(args, stdout=subprocess.PIPE, stderr=sys.stderr)
@ -168,48 +124,43 @@ def popen(*args: str) -> str:
        raise RuntimeError(f"{args[0]}: Segmentation fault")

    if proc.returncode != 0:
-        raise RuntimeError(
-            f"{args[0]}: Process exited with code {proc.returncode}")
+        raise RuntimeError(f"{args[0]}: Process exited with code {proc.returncode}")

-    return proc.stdout.decode('utf-8')
+    return proc.stdout.decode("utf-8")


-def readdir(path: str) -> list[str]:
-    logger.info(f"Reading directory {path}")
-
-    try:
-        return os.listdir(path)
-    except FileNotFoundError:
-        return []
-
-
-def cp(src: str, dst: str):
-    logger.info(f"Copying {src} to {dst}")
+def cp(src: Path, dst: Path):
+    _logger.info(f"Copying {src} to {dst}")

    shutil.copy(src, dst)


-def mv(src: str, dst: str):
-    logger.info(f"Moving {src} to {dst}")
+def mv(src: Path, dst: Path):
+    _logger.info(f"Moving {src} to {dst}")

    shutil.move(src, dst)


-def cpTree(src: str, dst: str):
-    logger.info(f"Copying {src} to {dst}")
+def cpTree(src: Path, dst: Path):
+    _logger.info(f"Copying {src} to {dst}")

    shutil.copytree(src, dst, dirs_exist_ok=True)


-def cloneDir(url: str, path: str, dest: str) -> str:
+def cloneDir(url: str, path: Path, dest: Path) -> Path:
    with tempfile.TemporaryDirectory() as tmp:
-        mkdir(tmp)
-        exec(*["git", "clone", "-n", "--depth=1",
-               "--filter=tree:0", url, tmp, "-q"], quiet=True)
-        exec(*["git", "-C", tmp, "sparse-checkout",
-               "set", "--no-cone", path, "-q"], quiet=True)
+        tmp = Path(tmp)
+        tmp.mkdir(parents=True, exist_ok=True)
+        exec(
+            *["git", "clone", "-n", "--depth=1", "--filter=tree:0", url, tmp, "-q"],
+            quiet=True,
+        )
+        exec(
+            *["git", "-C", tmp, "sparse-checkout", "set", "--no-cone", path, "-q"],
+            quiet=True,
+        )
        exec(*["git", "-C", tmp, "checkout", "-q", "--no-progress"], quiet=True)
-        mv(os.path.join(tmp, path), dest)
+        mv(tmp / path, dest)

    return dest

@ -232,7 +183,7 @@ def latest(cmd: str) -> str:
    if cmd in LATEST_CACHE:
        return LATEST_CACHE[cmd]

-    logger.info(f"Finding latest version of {cmd}")
+    _logger.info(f"Finding latest version of {cmd}")

    regex: re.Pattern[str]

@ -254,14 +205,14 @@ def latest(cmd: str) -> str:
    versions.sort()
    chosen = versions[-1]

-    logger.info(f"Chosen {chosen} as latest version of {cmd}")
+    _logger.info(f"Chosen {chosen} as latest version of {cmd}")

    LATEST_CACHE[cmd] = chosen

    return chosen


-def which(cmd: str) -> str | None:
+def which(cmd: str) -> Optional[str]:
    """
    Find the path of a command
    """
--- a/cutekit/utils.py
+++ b/cutekit/utils.py
@ -3,11 +3,11 @@ from typing import Any, TypeVar, cast, Optional, Union
 import json
 import hashlib

-T = TypeVar('T')
+T = TypeVar("T")


-def uniq(l: list[str]) -> list[str]:
-    result: list[str] = []
+def uniq(l: list[T]) -> list[T]:
+    result: list[T] = []
    for i in l:
        if i in result:
            result.remove(i)
@ -15,7 +15,9 @@ def uniq(l: list[str]) -> list[str]:
    return result


-def hash(obj: Any, keys: list[str] = [], cls: Optional[type[json.JSONEncoder]] = None) -> str:
+def hash(
+    obj: Any, keys: list[str] = [], cls: Optional[type[json.JSONEncoder]] = None
+) -> str:
    toHash = {}
    if len(keys) == 0:
        toHash = obj
@ -28,7 +30,7 @@ def hash(obj: Any, keys: list[str] = [], cls: Optional[type[json.JSONEncoder]] =


 def camelCase(s: str) -> str:
-    s = ''.join(x for x in s.title() if x != '_' and x != '-')
+    s = "".join(x for x in s.title() if x != "_" and x != "-")
    s = s[0].lower() + s[1:]
    return s

@ -60,4 +62,6 @@ def asList(i: Optional[Union[T, list[T]]]) -> list[T]:


 def isNewer(path1: str, path2: str) -> bool:
-    return not os.path.exists(path2) or os.path.getmtime(path1) > os.path.getmtime(path2)
+    return not os.path.exists(path2) or os.path.getmtime(path1) > os.path.getmtime(
+        path2
+    )
--- a/cutekit/vt100.py
+++ b/cutekit/vt100.py
@ -28,10 +28,6 @@ CROSSED = "\033[9m"
 RESET = "\033[0m"


-def title(text: str):
-    print(f"{BOLD}{text}{RESET}:")
-
-
 def wordwrap(text: str, width: int = 60, newline: str = "\n") -> str:
    result = ""
    curr = 0
@ -49,3 +45,11 @@ def wordwrap(text: str, width: int = 60, newline: str = "\n") -> str:

 def indent(text: str, indent: int = 4) -> str:
    return " " * indent + text.replace("\n", "\n" + " " * indent)
+
+
+def title(text: str):
+    print(f"{BOLD}{text}{RESET}:")
+
+
+def p(text: str):
+    return indent(wordwrap(text))
--- a/doc/extends.md
+++ b/doc/extends.md
@ -1,4 +1,3 @@
-
 # Extending cutekit

 By writing custom Python plugins, you can extend Cutekit to do whatever you want.
@ -9,24 +8,11 @@ Then you can import cutekit and change/add whatever you want.
 For example you can add a new command to the CLI:

 ```python
-import os
-import json
-import magic
-import logging
-from pathlib import Path
+from cutekit import cli

-
-from cutekit import shell, builder, const, project
-from cutekit.cmds import Cmd, append
-from cutekit.args import Args
-from typing import Callable
-
-
-def bootCmd(args: Args) -> None:
-    project.chdir()
+@cli.command("h", "hello", "Print hello world")
+def bootCmd(args: cli.Args) -> None:
    print("Hello world!")
-
-append(Cmd("h", "hello", "Print hello world", bootCmd))
 ```

 This feature is used - for example - by [SkiftOS](https://github.com/skift-org/skift/blob/main/meta/plugins/start-cmd.py) to add the `start` command, that build packages and run a virtual machine.
--- a/pyproject.toml
+++ b/pyproject.toml
@ -14,7 +14,11 @@ authors = [
 readme = "README.md"
 requires-python = ">=3.10"
 license = { text = "MIT" }
-dependencies = ["requests ~= 2.28.0", "graphviz ~= 0.20.1"]
+dependencies = [
+    "requests ~= 2.28.0",
+    "graphviz ~= 0.20.1",
+    "dataclasses-json ~= 0.6.2",
+]
 dynamic = ["version"]

 [project.scripts]
--- a/requirements.txt
+++ b/requirements.txt
@ -1,2 +0,0 @@
-requests ~= 2.28.0
-graphviz ~= 0.20.1
--- a/tests/test_resolver.py
+++ b/tests/test_resolver.py
@ -0,0 +1,90 @@
+from cutekit import model
+
+
+def test_direct_deps():
+    r = model.Registry("")
+    r._append(model.Component("myapp", requires=["mylib"]))
+    r._append(model.Component("mylib"))
+    t = model.Target("host")
+    res = model.Resolver(r, t)
+
+    resolved = res.resolve("myapp")
+    assert resolved.reason is None
+    assert resolved.resolved == ["myapp", "mylib"]
+
+
+def test_indirect_deps():
+    r = model.Registry("")
+    r._append(model.Component("myapp", requires=["mylib"]))
+    r._append(model.Component("mylib", requires=["myembed"]))
+    r._append(model.Component("myimpl", provides=["myembed"]))
+    t = model.Target("host")
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimpl"]
+
+
+def test_deps_routing():
+    r = model.Registry("")
+    r._append(model.Component("myapp", requires=["mylib"]))
+    r._append(model.Component("mylib", requires=["myembed"]))
+    r._append(model.Component("myimplA", provides=["myembed"]))
+    r._append(model.Component("myimplB", provides=["myembed"]))
+    t = model.Target("host", routing={"myembed": "myimplB"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplB"]
+
+    t = model.Target("host", routing={"myembed": "myimplA"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplA"]
+
+    t = model.Target("host", routing={"myembed": "myimplC"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").reason == "No provider for 'myembed'"
+
+
+def test_deps_routing_with_props():
+    r = model.Registry("")
+    r._append(model.Component("myapp", requires=["mylib"]))
+    r._append(model.Component("mylib", requires=["myembed"]))
+    r._append(
+        model.Component("myimplA", provides=["myembed"], enableIf={"myprop": ["a"]})
+    )
+    r._append(
+        model.Component("myimplB", provides=["myembed"], enableIf={"myprop": ["b"]})
+    )
+    t = model.Target("host", routing={"myembed": "myimplB"}, props={"myprop": "b"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplB"]
+
+    t = model.Target("host", routing={"myembed": "myimplA"}, props={"myprop": "a"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplA"]
+
+    t = model.Target("host", routing={"myembed": "myimplC"}, props={"myprop": "c"})
+    res = model.Resolver(r, t)
+
+    resolved = res.resolve("myapp")
+    assert resolved.reason == "No provider for 'myembed'"
+
+
+def test_deps_routing_with_props_and_requires():
+    r = model.Registry("")
+    r._append(model.Component("myapp", requires=["mylib"]))
+    r._append(model.Component("mylib", requires=["myembed"]))
+    r._append(
+        model.Component("myimplA", provides=["myembed"], enableIf={"myprop": ["a"]})
+    )
+    r._append(
+        model.Component("myimplB", provides=["myembed"], enableIf={"myprop": ["b"]})
+    )
+    t = model.Target("host", routing={"myembed": "myimplB"}, props={"myprop": "b"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplB"]
+
+    t = model.Target("host", routing={"myembed": "myimplA"}, props={"myprop": "a"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").resolved == ["myapp", "mylib", "myimplA"]
+
+    t = model.Target("host", routing={"myembed": "myimplC"}, props={"myprop": "c"})
+    res = model.Resolver(r, t)
+    assert res.resolve("myapp").reason == "No provider for 'myembed'"
Author	SHA1	Message	Date
Jordan ⌨️	e54f8f5964	ref: move to pathlib	2023-11-13 21:25:48 +01:00
Jordan ⌨️	8f59111ad7	fix: check plugin if script is in same directory as __init__.py	2023-11-13 20:37:41 +01:00
Sleepy Monax	01f0868db0	Fix naming for ci step	2023-11-13 19:35:26 +01:00
Sleepy Monax	f6f36ea79e	Refactored build context and dependecy resolution code	2023-11-13 19:21:54 +01:00
Sleepy Monax	3dbf269cdd	Run tests in the CI	2023-11-13 19:19:59 +01:00
Sleepy Monax	68cae44750	Added missing requirement	2023-11-11 19:08:53 +01:00
Sleepy Monax	a472abb90f	Use dataclasses for the model	2023-11-11 19:05:41 +01:00
Sleepy Monax	39ee66364d	Add ensure function to check cutekit version	2023-11-11 19:03:19 +01:00
Sleepy Monax	9dc1575a57	Update Python version and MyPy command.	2023-11-11 17:12:44 +01:00
Sleepy Monax	0a5ed0c444	Moved more stuff to the cli module.	2023-11-11 17:02:56 +01:00
Sleepy Monax	2307a72564	Add ci checks.	2023-11-11 17:02:42 +01:00
Sleepy Monax	ce3728ccfb	Cleanups imports and got ride of cutekit.project	2023-11-11 16:44:40 +01:00
Sleepy Monax	c8b23bc6c1	Removed the "manifest" suffix from classes names in the model.	2023-11-11 16:19:14 +01:00
Sleepy Monax	e77e787547	Update cutekit CLI to use new cli module	2023-11-11 16:17:33 +01:00
Jordan ⌨️	31ca0b19e8	feat: new command line decorator	2023-11-11 13:40:14 +01:00
Jordan ⌨️	d842c6af2d	fix: incorrect type comparaison lead to infinite loop when not in ck project	2023-11-11 11:43:42 +01:00
Sleepy Monax	920762f56d	Added command decorator.	2023-11-10 13:29:32 +01:00
Sleepy Monax	97f9f0ddba	Add _ prefix to logger	2023-11-10 11:31:44 +01:00
Sleepy Monax	9572c6a3df	Fix project lookup on windows.	2023-10-31 14:22:07 +01:00