Added graphviz visualization.

osdk/args.py

@@ -24,6 +24,13 @@ class Args:
             return result
         return default
 
+    def tryConsumeOpt(self, key: str) -> Value | None:
+        if key in self.opts:
+            result = self.opts[key]
+            del self.opts[key]
+            return result
+        return None
+
     def consumeArg(self) -> str | None:
         if len(self.args) == 0:
             return None

osdk/cmds.py

@@ -1,7 +1,8 @@
 from typing import Callable, cast
 
 from osdk.args import Args
-from osdk import context, shell, const, vt100, builder
+from osdk.context import contextFor
+from osdk import context, shell, const, vt100, builder, graph
 
 Callback = Callable[[Args], None]
 
@@ -136,6 +137,18 @@ def versionCmd(args: Args):
 cmds += [Cmd("v", "version", "Show current version", versionCmd)]
 
 
+def graphCmd(args: Args):
+    targetSpec = cast(str, args.consumeOpt(
+        "target", "host-" + shell.uname().machine))
+
+    context = contextFor(targetSpec, {})
+
+    graph.view(context)
+
+
+cmds += [Cmd("g", "graph", "Show dependency graph", graphCmd)]
+
+
 def usage():
     print(f"Usage: {const.ARGV0} <command> [args...]")
 

osdk/context.py

@@ -79,6 +79,9 @@ class Context:
     def cdefs(self) -> list[str]:
         return self.target.cdefs()
 
+    def builddir(self) -> str:
+        return self.target.builddir()
+
 
 def loadAllTargets() -> list[TargetManifest]:
     files = shell.find(const.TARGETS_DIR, ["*.json"])

osdk/graph.py

@@ -0,0 +1,22 @@
+from graphviz import Digraph
+
+from osdk.context import Context
+
+
+def view(context: Context):
+    g = Digraph(context.target.id, filename='graph.gv')
+    
+    g.attr('node', shape='ellipse')
+
+    for instance in context.instances:
+        if not instance.isLib():
+            continue
+        g.node(instance.manifest.id, f"<<B>{instance.manifest.id}</B><BR/>{instance.manifest.decription}>",
+               shape="plaintext", style="filled")
+        for req in instance.manifest.requires:
+            g.edge(req, instance.manifest.id)
+
+        for req in instance.manifest.provides:
+            g.edge(instance.manifest.id, req)
+
+    g.view(filename=f"{context.builddir()}/graph.gv")

setup.py

@@ -12,6 +12,7 @@ setup(
     packages=["osdk"],
     install_requires=[
         "requests",
+        "graphviz"
     ],
     entry_points={
         "console_scripts": [