717eb6ccea
Add checksums cache to build-manifest During the release process we're currently calculating the SHA256 of each file three times: 1. In `build-manifest`, to fill the `hash = "f00"` keys of the manifests. 2. In `promote-release`, to generate the `.sha256` files. 3. In `promote-release`, to generate the `.asc` GPG signatures. Calculations 1. and 2. could be merged into a single one if there was a way for `build-manifest` to pass the checksums it generated over to `promote-release`. Unfortunately calculation 3. can't be merged as GPG requires extra metadata to be hashed. This PR adds support for merging 1. and 2. by creating the `BUILD_MANIFEST_CHECKSUM_CACHE` environment variable, which points to a JSON file storing a cache of all the calculated checksums. `build-manifest` will load it at startup and avoid generating existing checksums, and it will dump its internal checksums cache into it when it exits successfully. This PR also allows to run `build-manifest` multiple times without the need to wait for checksums to be calculated in the following invocations. The speedup will allow to work torwards a fix for https://github.com/rust-lang/promote-release/issues/15 without impacting the release process duration nor our storage costs. This PR can be reviewed commit-by-commit. r? `@Mark-Simulacrum` |
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| .. | ||
| bootstrap | ||
| build_helper | ||
| ci | ||
| doc | ||
| etc | ||
| librustdoc | ||
| llvm-project@ee16174578 | ||
| test | ||
| tools | ||
| README.md | ||
| stage0.txt | ||
| version | ||
This directory contains the source code of the rust project, including:
- The test suite
- The bootstrapping build system
- Various submodules for tools, like rustdoc, rls, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.