This nightmare compares files changed, attrs changed, and pings maintainers
This commit is contained in:
Graham Christensen
parent
040c33717c
commit
8333409bd0
146
maintainers.sh
Executable file
146
maintainers.sh
Executable file
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@ -0,0 +1,146 @@
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#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p jq -p curl
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set -euxo pipefail
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statuses_url=$(curl --fail -L "https://api.github.com/repos/nixos/nixpkgs/pulls/$1" \
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| jq -r .statuses_url)
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changed_url=$(curl --fail -L "$statuses_url" \
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| jq -r '.[] | select (.state == "success" and .description == "^.^!" and .target_url != "") | .target_url' | head -n1 \
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| sed -e 's#gist.github.com#api.github.com/gists#' \
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)
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changed_text_url=$(curl --fail -L "$changed_url" \
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| jq -r '.files."Changed Paths".raw_url')
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if [ "x$changed_url" == "x" ]; then
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echo "Nothing changed"
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exit 1
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fi
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(
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cat <<EOF
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let
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pkgs = import ./default.nix {};
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EOF
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echo 'changedattrs = ['
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curl --fail -L "$changed_text_url" \
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| cut -f2 \
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| sort | uniq \
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| sed -e 's/\./" "/g' | sed -e 's/^/[ "/' | sed -e 's/$/" ]/'
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echo '];
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changedpaths = ['
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curl --fail -L "https://github.com/NixOS/nixpkgs/pull/$1.patch" \
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| grep "^+++ b/" | sed -e "s/^+++ b//" \
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| sed -e 's/^/"/' | sed -e 's/$/"/' \
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| sort | uniq
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echo '];'
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cat <<'EOF'
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anyMatchingFile = filename:
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let
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matching = builtins.filter
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(changed: pkgs.lib.strings.hasSuffix changed filename)
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changedpaths;
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in (builtins.length matching) > 0;
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anyMatchingFiles = files:
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(builtins.length (builtins.filter anyMatchingFile files)) > 0;
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enrichedAttrs = builtins.map
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(path: {
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path = path;
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name = "pkgs.${builtins.concatStringsSep "." path}";
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})
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changedattrs;
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validPackageAttributes = builtins.filter
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(pkg:
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if (pkgs.lib.attrsets.hasAttrByPath pkg.path pkgs) then
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(if (builtins.tryEval (pkgs.lib.attrsets.attrByPath pkg.path null pkgs)).success
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then true
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else builtins.trace "Failed to access ${pkg.name} even though it exists" false)
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else builtins.trace "Failed to locate ${pkg.name}." false
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)
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enrichedAttrs;
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attrsWithPackages = builtins.map
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(pkg: pkg // { package = pkgs.lib.attrsets.attrByPath pkg.path null pkgs; })
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validPackageAttributes;
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attrsWithMaintainers = builtins.map
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(pkg: pkg // { maintainers = (pkg.package.meta or {}).maintainers or []; })
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attrsWithPackages;
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attrsWeCanPing = builtins.filter
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(pkg: if (builtins.length pkg.maintainers) > 0
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then true
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else builtins.trace "Package has no maintainers: ${pkg.name}" false
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)
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attrsWithMaintainers;
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relevantFilenames = drv:
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(pkgs.lib.lists.unique
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(builtins.map
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(pos: pos.file)
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(builtins.filter (x: x != null)
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[
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(builtins.unsafeGetAttrPos "maintainers" (drv.meta or {}))
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(builtins.unsafeGetAttrPos "src" drv)
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# broken because name is always set in stdenv:
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# # A hack to make `nix-env -qa` and `nix search` ignore broken packages.
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# # TODO(@oxij): remove this assert when something like NixOS/nix#1771 gets merged into nix.
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# name = assert validity.handled; name + lib.optionalString
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#(builtins.unsafeGetAttrPos "name" drv)
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(builtins.unsafeGetAttrPos "pname" drv)
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(builtins.unsafeGetAttrPos "version" drv)
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]
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)));
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attrsWithFilenames = builtins.map
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(pkg: pkg // { filenames = relevantFilenames pkg.package; })
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attrsWithMaintainers;
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attrsWithModifiedFiles = builtins.filter
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(pkg: anyMatchingFiles pkg.filenames)
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attrsWithFilenames;
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listToPing = pkgs.lib.lists.flatten
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(builtins.map
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(pkg:
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builtins.map
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(maintainer: {
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handle = maintainer.github;
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packageName = pkg.name;
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dueToFiles = pkg.filenames;
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})
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pkg.maintainers
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)
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attrsWithModifiedFiles);
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byMaintainer = pkgs.lib.lists.foldr
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(ping: collector: collector // { "${ping.handle}" = [ { inherit (ping) packageName dueToFiles; } ] ++ (collector."${ping.handle}" or []); })
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{}
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listToPing;
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textForPackages = packages:
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pkgs.lib.strings.concatStringsSep ", " (
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builtins.map
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(pkg: pkg.packageName)
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packages);
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textPerMaintainer = pkgs.lib.attrsets.mapAttrs
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(maintainer: packages: "- @${maintainer} for ${textForPackages packages}")
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byMaintainer;
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text = pkgs.lib.strings.concatStringsSep "\n" (builtins.attrValues textPerMaintainer);
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in builtins.trace text ""
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EOF
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) > data.nix
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nix-instantiate --eval ./data.nix
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