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Martin Geisler
c092c383ad
This PR is the first step of several aiming at introducing better caching and reproducibility with Bazel. It will eventually fix #1168. I have been introducing Bazel for a large polyglot build at work, and this gave me hands on experience with building Rust with Bazel. In this project, we have so far been using shell scripts. YAML files, and a bit of `cargo xtask` to keep the build here going. However, it's time to admit that we have a non-trivial build process: - we build several `mdbook` plugins, some from our repository, some from external repositories (we install them globally with `cargo install`). - we use `build.sh` to backdate the sources for translations (we leave behnd a dirty working copy). - we have end-to-end tests which rely on NodeJS being installed on the system. All this complexity can be rained in with Bazel: we can build our `mdbook` plugins hermetically and put them on the `PATH` only for the final `mdbook build` invocation. We can put our backdated sources into temporary directories and keep the working copy clean. This will let us skip building translations that haven't changed, thus speeding up local and CI builds. I have not yet looked at the NodeJS parts, but I'm sure that can be integrated with Bazel as well. The approach used lets `rules_rust` read the `Cargo.lock` file: ```python crate = use_extension("@rules_rust//crate_universe:extensions.bzl", "crate") crate.from_cargo( name = "crates", cargo_lockfile = "//:Cargo.lock", manifests = ["//:Cargo.toml"], ) use_repo(crate, "crates") ``` This is the documented on https://bazelbuild.github.io/rules_rust/crate_universe_bzlmod.html. It build on the existing Cargo setup and is thus compatible with it. We can discuss later if we want to keep Cargo compatibility or move completely to Bazel.
6 lines
69 B
Python
6 lines
69 B
Python
ignore_directories([
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"book",
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"target",
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"third_party",
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])
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