mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-11-10 17:54:53 +01:00
114 lines
4 KiB
Nix
114 lines
4 KiB
Nix
{
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lib,
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}:
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{
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changedattrs,
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changedpathsjson,
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removedattrs,
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}:
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let
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pkgs = import ../../.. {
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system = "x86_64-linux";
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# We should never try to ping maintainers through package aliases, this can only lead to errors.
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# One example case is, where an attribute is a throw alias, but then re-introduced in a PR.
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# This would trigger the throw. By disabling aliases, we can fallback gracefully below.
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config.allowAliases = false;
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};
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changedpaths = lib.importJSON changedpathsjson;
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# Extract attributes that changed from by-name paths.
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# This allows pinging reviewers for pure refactors.
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touchedattrs = lib.pipe changedpaths [
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(lib.filter (changed: lib.hasPrefix "pkgs/by-name/" changed))
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(map (lib.splitString "/"))
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(map (path: lib.elemAt path 3))
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lib.unique
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];
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anyMatchingFile = filename: lib.any (lib.hasPrefix filename) changedpaths;
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anyMatchingFiles = files: lib.any anyMatchingFile files;
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sharded = name: "${lib.substring 0 2 name}/${name}";
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attrsWithMaintainers = lib.pipe (changedattrs ++ removedattrs ++ touchedattrs) [
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# An attribute can appear in changed/removed *and* touched
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lib.unique
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(map (
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name:
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let
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path = lib.splitString "." name;
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# Some packages might be reported as changed on a different platform, but
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# not even have an attribute on the platform the maintainers are requested on.
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# Fallback to `null` for these to filter them out below.
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package = lib.attrByPath path null pkgs;
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in
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{
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inherit name package;
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# Adds all files in by-name to each package, no matter whether they are discoverable
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# via meta attributes below. For example, this allows pinging maintainers for
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# updates to .json files.
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# TODO: Support by-name package sets.
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filenames = lib.optional (lib.length path == 1) "pkgs/by-name/${sharded (lib.head path)}/";
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# TODO: Refactor this so we can ping entire teams instead of the individual members.
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# Note that this will require keeping track of GH team IDs in "maintainers/teams.nix".
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maintainers = package.meta.maintainers or [ ];
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}
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))
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# No need to match up packages without maintainers with their files.
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# This also filters out attributes where `packge = null`, which is the
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# case for libintl, for example.
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(lib.filter (pkg: pkg.maintainers != [ ]))
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];
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relevantFilenames =
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drv:
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(lib.unique (
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map (pos: lib.removePrefix "${toString ../../..}/" pos.file) (
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lib.filter (x: x != null) [
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(drv.meta.maintainersPosition or null)
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(drv.meta.teamsPosition or null)
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(lib.unsafeGetAttrPos "src" drv)
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(lib.unsafeGetAttrPos "pname" drv)
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(lib.unsafeGetAttrPos "version" drv)
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]
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++ lib.optionals (drv ? meta.position) [
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# Use ".meta.position" for cases when most of the package is
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# defined in a "common" section and the only place where
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# reference to the file with a derivation the "pos"
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# attribute.
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#
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# ".meta.position" has the following form:
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# "pkgs/tools/package-management/nix/default.nix:155"
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# We transform it to the following:
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# { file = "pkgs/tools/package-management/nix/default.nix"; }
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{ file = lib.head (lib.splitString ":" drv.meta.position); }
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]
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)
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));
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attrsWithFilenames = map (
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pkg: pkg // { filenames = pkg.filenames ++ relevantFilenames pkg.package; }
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) attrsWithMaintainers;
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attrsWithModifiedFiles = lib.filter (pkg: anyMatchingFiles pkg.filenames) attrsWithFilenames;
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listToPing = lib.concatMap (
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pkg:
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map (maintainer: {
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id = maintainer.githubId;
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inherit (maintainer) github;
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packageName = pkg.name;
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dueToFiles = pkg.filenames;
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}) pkg.maintainers
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) attrsWithModifiedFiles;
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byMaintainer = lib.groupBy (ping: toString ping.id) listToPing;
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packagesPerMaintainer = lib.mapAttrs (
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maintainer: packages: map (pkg: pkg.packageName) packages
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) byMaintainer;
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in
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packagesPerMaintainer
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