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https://github.com/bazel-contrib/bazel-lib
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50 lines
2.6 KiB
Markdown
50 lines
2.6 KiB
Markdown
# Aspect's Bazel helpers library
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Base Starlark libraries and basic Bazel rules which are useful for constructing rulesets and BUILD files.
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This module depends on [bazel-skylib](https://github.com/bazelbuild/bazel-skylib).
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In theory all these utilities could be upstreamed to bazel-skylib, but the declared scope of that project
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is narrow and it's very difficult to get anyone's attention to review PRs there.
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See a full listing of our rules on our [docsite](https://docs.aspect.build/bazel-lib).
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_Need help?_ This ruleset has support provided by https://aspect.dev.
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## Copying files
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- [copy_directory](docs/copy_directory.md) Copies directories to another package.
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- [copy_file](docs/copy_file.md) Copies files to another package.
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- [copy_to_bin](docs/copy_to_bin.md) Copies a source file to output tree at the same workspace-relative path.
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- [copy_to_directory](docs/copy_to_directory.md) Copies and arranges files and directories into a new directory.
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- [write_source_files](docs/write_source_files.md) Write to one or more files or folders in the source tree. Stamp out tests that ensure the sources exist and are up to date.
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## Transforming files
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- [jq](docs/jq.md) A toolchain and custom rule for running [jq](https://stedolan.github.io/jq/), a tool that is "like sed for json".
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- [yq](docs/yq.md) A toolchain and custom rule for running [yq](https://github.com/mikefarah/yq), a "YAML, JSON and XML processor".
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## Manipulating paths
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- [directory_path](<(docs/directory_path.md)>) Provide a label to reference some path within a directory, via DirectoryPathInfo.
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- [output_files](docs/output_files.md) Forwards a subset of the files (via the DefaultInfo provider) from a given target's DefaultInfo or OutputGroupInfo.
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## Writing rules
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- [expand_make_vars](docs/expand_make_vars.md) Perform make variable and location substitions in strings and templates.
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- [paths](docs/paths.md) Useful path resolution methods.
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- [transitions](docs/transitions.md) Transition sources to a provided platform.
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- [utils](docs/utils.md) Various utils for labels and globs.
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- [params_file](docs/params_file.md) Generate encoded params file from a list of arguments.
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- [repo_utils](docs/repo_utils.md) Useful methods for repository rule implementations.
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- [run_binary](docs/run_binary.md) Like skylib's run_binary but adds directory output support.
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## Generating documentation
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- [docs](docs/docs.md) Rules for generating docs and stamping tests to ensure they are up to date.
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## Installation
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From the release you wish to use:
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<https://github.com/aspect-build/bazel-lib/releases>
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copy the WORKSPACE snippet into your `WORKSPACE` file.
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