93 lines
1.4 KiB
Markdown
93 lines
1.4 KiB
Markdown
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## Macros
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To avoid headache, Cutekit extends JSON through simple macros, this is what we call **Jexpr**.
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### `@latest`
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Find the latest version of a command in the path.
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```json
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"cc": {
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"cmd": ["@latest", "clang"], // clang-14
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/* ... */
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```
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### `@uname`
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Query the system for information about the current operating system.
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```json
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"cc": {
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"cmd": ["@uname", "machine"], // "x86_64"
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/* ... */
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```
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The `@uname` commands has 1 argument that may be:
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- `node`: to get the current machine hostname.
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- `machine`: to get the current machine running architecture
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- `aarch64` is renamed to `arm64`
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- `AMD64` is renamed to `x86_64`
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- `system`: to get the current machine running operating system:
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- `Linux`
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- `Windows`
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- `release`: to get the current machine operating system's version
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- `version`: to get more information about the host operating system.
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### `@include`
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Include a manifest file.
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### `@read`
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Read a Json file and output its value.
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### `@join`
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Join two objects
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Example:
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```json
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["@join", {"a": 1}, {"b": 2}] // {"a": 1, "b": 2}
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```
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### `@concat`
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Concatenate strings
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Example:
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```json
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["@concat", "a", "b", "c"] // "abc"
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```
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### `@exec`
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Execute a command and return the output
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Example:
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```json
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["@exec", "uname", "-m"] // "x86_64"
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```
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### `@eval`
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Execute python code and return the output
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Example:
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```json
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"32limit": ["@eval", "2**32"]
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```
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### `@abspath`
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Returns the absolute path of a path.
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