mirror of
https://github.com/nix-community/dream2nix.git
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Merge pull request #67 from yusdacra/fix/build-rust-package
fix(rust): handle git source vendoring properly
This commit is contained in:
DavHau
GitHub
commit
dcdf2f27df
@ -12,6 +12,7 @@
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getCyclicDependencies,
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getDependencies,
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getSource,
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getSourceSpec,
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produceDerivation,
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...
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@ -30,40 +31,99 @@ let
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direct ++ (l.map (dep: getAllTransitiveDependencies dep.name dep.version) direct)
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));
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# TODO: implement a user option that will make the vendoring
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# copy sources instead of symlinking them. This can be useful
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# for some Rust packages that modify their own dependencies
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# via their build hooks.
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vendorPackageDependencies = pname: version:
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let
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deps = getAllTransitiveDependencies pname version;
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makeSource = dep: {
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name = "${dep.name}-${dep.version}";
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path = getSource dep.name dep.version;
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};
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makeSource = dep:
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let
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path = getSource dep.name dep.version;
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isGit = (getSourceSpec dep.name dep.version).type == "git";
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in {
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inherit path isGit dep;
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name = "${dep.name}-${dep.version}";
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};
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sources = l.map makeSource deps;
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findCrateSource = source:
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let
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inherit (pkgs) cargo jq;
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pkg = source.dep;
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in ''
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# If the target package is in a workspace, or if it's the top-level
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# crate, we should find the crate path using `cargo metadata`.
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crateCargoTOML=$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path $tree/Cargo.toml | \
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${jq}/bin/jq -r '.packages[] | select(.name == "${pkg.name}") | .manifest_path')
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# If the repository is not a workspace the package might be in a subdirectory.
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if [[ -z $crateCargoTOML ]]; then
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for manifest in $(find $tree -name "Cargo.toml"); do
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echo Looking at $manifest
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crateCargoTOML=$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path "$manifest" | ${jq}/bin/jq -r '.packages[] | select(.name == "${pkg.name}") | .manifest_path' || :)
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if [[ ! -z $crateCargoTOML ]]; then
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break
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fi
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done
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if [[ -z $crateCargoTOML ]]; then
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>&2 echo "Cannot find path for crate '${pkg.name}-${pkg.version}' in the tree in: $tree"
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exit 1
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fi
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fi
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echo Found crate ${pkg.name} at $crateCargoTOML
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tree="$(dirname $crateCargoTOML)"
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'';
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makeScript = source:
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''
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tree="${source.path}"
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${l.optionalString source.isGit (findCrateSource source)}
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cp -prvd "$tree" $out/${source.name}
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chmod u+w $out/${source.name}
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${l.optionalString source.isGit "printf '{\"files\":{},\"package\":null}' > \"$out/${source.name}/.cargo-checksum.json\""}
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'';
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in
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pkgs.runCommand "vendor-${pname}-${version}" {} ''
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mkdir -p $out
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${
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l.concatMapStringsSep "\n"
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(source: "ln -s ${source.path} $out/${source.name}")
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makeScript
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sources
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}
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'';
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# Generates a shell script that writes git vendor entries to .cargo/config.
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writeGitVendorEntries =
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let
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makeEntry = source:
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''
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[source."${source.url}"]
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replace-with = "vendored-sources"
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git = "${source.url}"
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${l.optionalString (source ? type) "${source.type} = \"${source.value}\""}
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'';
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entries = l.map makeEntry subsystemAttrs.gitSources;
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in ''
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cat >> ../.cargo/config <<EOF
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${l.concatStringsSep "\n" entries}
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EOF
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'';
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buildPackage = pname: version:
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let src = getSource pname version; in
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let
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src = getSource pname version;
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vendorDir = vendorPackageDependencies pname version;
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in
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produceDerivation pname (pkgs.rustPlatform.buildRustPackage {
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inherit pname version src;
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postUnpack = ''
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ln -s ${vendorPackageDependencies pname version} ./${src.name}/nix-vendor
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ln -s ${vendorDir} ./nix-vendor
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'';
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cargoVendorDir = "nix-vendor";
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cargoVendorDir = "../nix-vendor";
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preBuild = ''
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${writeGitVendorEntries}
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'';
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});
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in
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rec {
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@ -302,6 +302,7 @@ let
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inherit (dreamLockInterface)
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subsystemAttrs
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getSourceSpec
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getDependencies
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getCyclicDependencies
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mainPackageName
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@ -2,6 +2,20 @@
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"_subsystem": {
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"packages": [
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{ "name": "ripgrep", "version": "13.0.0" }
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],
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"gitSources": [
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{
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"url": "https://github.com/rust-random/rand.git",
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"sha": "19404d68764ed08513131f82157e2ccad69dcf83",
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"type": "branch",
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"value": "master"
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},
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{
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"url": "https://github.com/rust-random/rand.git",
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"sha": "074cb6a997f91db653f8a53c755ddc07495ab429",
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"type": "tag",
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"value": "0.7.3"
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}
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]
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}
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}
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@ -24,17 +24,19 @@
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(n: v: if v == "directory" then recurseFiles "${path}/${n}" else "${path}/${n}")
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(l.readDir path)
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);
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getAllFiles = dirs: l.flatten (l.map recurseFiles dirs);
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getCargoTomlPaths = l.filter (path: l.baseNameOf path == "Cargo.toml");
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getCargoTomls = l.map (path: { inherit path; value = l.fromTOML (l.readFile path); });
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getCargoPackages = l.filter (toml: l.hasAttrByPath [ "package" "name" ] toml.value);
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# Find all Cargo.toml files and parse them
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allFiles = l.flatten (l.map recurseFiles inputDirectories);
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cargoTomlPaths = l.filter (path: l.baseNameOf path == "Cargo.toml") allFiles;
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cargoTomls = l.map (path: { inherit path; value = l.fromTOML (l.readFile path); }) cargoTomlPaths;
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allFiles = getAllFiles inputDirectories;
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cargoTomlPaths = getCargoTomlPaths allFiles;
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cargoTomls = getCargoTomls cargoTomlPaths;
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# Filter cargo-tomls to for files that actually contain packages
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cargoPackages =
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l.filter
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(toml: l.hasAttrByPath [ "package" "name" ] toml.value)
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cargoTomls;
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cargoPackages = getCargoPackages cargoTomls;
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packageName =
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if args.packageName == "{automatic}"
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@ -101,6 +103,33 @@
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name = toml.package.name;
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version = toml.package.version or (l.warn "no version found in Cargo.toml for ${name}, defaulting to unknown" "unknown");
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};
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# Parses a git source, taken straight from nixpkgs.
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parseGitSource = src:
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let
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parts = builtins.match ''git\+([^?]+)(\?(rev|tag|branch)=(.*))?#(.*)'' src;
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type = builtins.elemAt parts 2; # rev, tag or branch
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value = builtins.elemAt parts 3;
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in
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if parts == null then null
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else {
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url = builtins.elemAt parts 0;
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sha = builtins.elemAt parts 4;
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} // lib.optionalAttrs (type != null) { inherit type value; };
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# Extracts a source type from a dependency.
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getSourceTypeFrom = dependencyObject:
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let checkType = type: l.hasPrefix "${type}+" dependencyObject.source; in
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if !(l.hasAttr "source" dependencyObject)
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then "path"
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else if checkType "git" then
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"git"
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else if checkType "registry" then
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if dependencyObject.source == "registry+https://github.com/rust-lang/crates.io-index"
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then "crates-io"
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else throw "registries other than crates.io are not supported yet"
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else
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throw "unknown or unsupported source type: ${dependencyObject.source}";
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in
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utils.simpleTranslate
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@ -140,8 +169,11 @@
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# Extract subsystem specific attributes.
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# The structure of this should be defined in:
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# ./src/specifications/{subsystem}
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subsystemAttrs = {
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subsystemAttrs = rec {
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packages = l.map (toml: { inherit (toml.value.package) name version; }) cargoPackages;
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gitSources = let
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gitDeps = l.filter (dep: (getSourceTypeFrom dep) == "git") parsedDeps;
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in l.unique (l.map (dep: parseGitSource dep.source) gitDeps);
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};
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# FUNCTIONS
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@ -160,18 +192,7 @@
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l.map makeDepNameVersion (dependencyObject.dependencies or [ ]);
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# return the source type of a package object
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getSourceType = dependencyObject:
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let checkType = type: l.hasPrefix "${type}+" dependencyObject.source; in
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if !(l.hasAttr "source" dependencyObject)
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then "path"
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else if checkType "git" then
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"git"
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else if checkType "registry" then
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if dependencyObject.source == "registry+https://github.com/rust-lang/crates.io-index"
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then "crates-io"
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else throw "registries other than crates.io are not supported yet"
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else
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throw "unknown or unsupported source type: ${dependencyObject.source}";
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getSourceType = getSourceTypeFrom;
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# An attrset of constructor functions.
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# Given a dependency object and a source type, construct the
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@ -180,12 +201,12 @@
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path = dependencyObject:
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let
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findCratePath = name:
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l.dirOf (
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l.baseNameOf (l.dirOf (
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l.findFirst
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(toml: toml.value.package.name == name)
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(throw "could not find crate ${name}")
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cargoPackages
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).path;
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).path);
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in
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{
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path = findCratePath dependencyObject.name;
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@ -193,18 +214,11 @@
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git = dependencyObject:
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let
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source = dependencyObject.source;
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extractRevision = source: l.last (l.splitString "#" source);
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extractRepoUrl = source:
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let
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splitted = l.head (l.splitString "?" source);
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split = l.substring 4 (l.stringLength splitted) splitted;
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in l.head (l.splitString "#" split);
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parsed = parseGitSource dependencyObject.source;
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in
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{
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url = extractRepoUrl source;
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rev = extractRevision source;
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url = parsed.url;
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rev = parsed.sha;
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};
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crates-io = dependencyObject:
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@ -77,6 +77,11 @@ let
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cyclicDependencies = lock.cyclicDependencies;
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getSourceSpec = pname: version:
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sources."${pname}"."${version}" or (
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throw "The source spec for ${pname}#${version} is not defined in lockfile."
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);
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getDependencies = pname: version:
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b.filter
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(dep: ! b.elem dep cyclicDependencies."${pname}"."${version}" or [])
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@ -96,6 +101,7 @@ let
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subsystemAttrs
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getCyclicDependencies
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getDependencies
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getSourceSpec
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packageVersions
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subDreamLocks
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;
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