rustPlatform.importCargoLock: add allowBuiltinFetchGit option

This commit is contained in:
figsoda 2022-12-13 11:22:07 -05:00
parent 4516b17cf4
commit cce3dc63a0
2 changed files with 36 additions and 8 deletions

View file

@ -186,6 +186,23 @@ added. To find the correct hash, you can first use `lib.fakeSha256` or
`lib.fakeHash` as a stub hash. Building the package (and thus the
vendored dependencies) will then inform you of the correct hash.
For usage outside nixpkgs, `allowBuiltinFetchGit` could be used to
avoid having to specify `outputHashes`. For example:
```nix
rustPlatform.buildRustPackage rec {
pname = "myproject";
version = "1.0.0";
cargoLock = {
lockFile = ./Cargo.lock;
allowBuiltinFetchGit = true;
};
# ...
}
```
### Cargo features {#cargo-features}
You can disable default features using `buildNoDefaultFeatures`, and

View file

@ -7,6 +7,9 @@
# Cargo lock file contents as string
, lockFileContents ? null
# Allow `builtins.fetchGit` to be used to not require hashes for git dependencies
, allowBuiltinFetchGit ? false
# Hashes for git dependencies.
, outputHashes ? {}
} @ args:
@ -38,14 +41,14 @@ let
# There is no source attribute for the source package itself. But
# since we do not want to vendor the source package anyway, we can
# safely skip it.
depPackages = (builtins.filter (p: p ? "source") packages);
depPackages = builtins.filter (p: p ? "source") packages;
# Create dependent crates from packages.
#
# Force evaluation of the git SHA -> hash mapping, so that an error is
# thrown if there are stale hashes. We cannot rely on gitShaOutputHash
# being evaluated otherwise, since there could be no git dependencies.
depCrates = builtins.deepSeq (gitShaOutputHash) (builtins.map mkCrate depPackages);
depCrates = builtins.deepSeq gitShaOutputHash (builtins.map mkCrate depPackages);
# Map package name + version to git commit SHA for packages with a git source.
namesGitShas = builtins.listToAttrs (
@ -117,12 +120,20 @@ let
If you use `buildRustPackage`, you can add this attribute to the `cargoLock`
attribute set.
'';
sha256 = gitShaOutputHash.${gitParts.sha} or missingHash;
tree = fetchgit {
inherit sha256;
inherit (gitParts) url;
rev = gitParts.sha; # The commit SHA is always available.
};
tree =
if gitShaOutputHash ? ${gitParts.sha} then
fetchgit {
inherit (gitParts) url;
rev = gitParts.sha; # The commit SHA is always available.
sha256 = gitShaOutputHash.${gitParts.sha};
}
else if allowBuiltinFetchGit then
builtins.fetchGit {
inherit (gitParts) url;
rev = gitParts.sha;
}
else
missingHash;
in runCommand "${pkg.name}-${pkg.version}" {} ''
tree=${tree}