ci/nixpkgs-vet.sh

   1 #!/usr/bin/env nix-shell
   2 #!nix-shell -i bash -p jq
   3
   4 set -o pipefail -o errexit -o nounset
   5
   6 trace() { echo >&2 "$@"; }
   7
   8 tmp=$(mktemp -d)
   9 cleanup() {
  10     # Don't exit early if anything fails to cleanup
  11     set +o errexit
  12
  13     trace -n "Cleaning up.. "
  14
  15     [[ -e "$tmp/base" ]] && git worktree remove --force "$tmp/base"
  16     [[ -e "$tmp/merged" ]] && git worktree remove --force "$tmp/merged"
  17
  18     rm -rf "$tmp"
  19
  20     trace "Done"
  21 }
  22 trap cleanup exit
  23
  24
  25 repo=https://github.com/NixOS/nixpkgs.git
  26
  27 if (( $# != 0 )); then
  28     baseBranch=$1
  29     shift
  30 else
  31     trace "Usage: $0 BASE_BRANCH [REPOSITORY]"
  32     trace "BASE_BRANCH: The base branch to use, e.g. master or release-23.11"
  33     trace "REPOSITORY: The repository to fetch the base branch from, defaults to $repo"
  34     exit 1
  35 fi
  36
  37 if (( $# != 0 )); then
  38     repo=$1
  39     shift
  40 fi
  41
  42 if [[ -n "$(git status --porcelain)" ]]; then
  43     trace -e "\e[33mWarning: Dirty tree, uncommitted changes won't be taken into account\e[0m"
  44 fi
  45 headSha=$(git rev-parse HEAD)
  46 trace -e "Using HEAD commit \e[34m$headSha\e[0m"
  47
  48 trace -n "Creating Git worktree for the HEAD commit in $tmp/merged.. "
  49 git worktree add --detach -q "$tmp/merged" HEAD
  50 trace "Done"
  51
  52 trace -n "Fetching base branch $baseBranch to compare against.. "
  53 git fetch -q "$repo" refs/heads/"$baseBranch"
  54 baseSha=$(git rev-parse FETCH_HEAD)
  55 trace -e "\e[34m$baseSha\e[0m"
  56
  57 trace -n "Creating Git worktree for the base branch in $tmp/base.. "
  58 git worktree add -q "$tmp/base" "$baseSha"
  59 trace "Done"
  60
  61 trace -n "Merging base branch into the HEAD commit in $tmp/merged.. "
  62 git -C "$tmp/merged" merge -q --no-edit "$baseSha"
  63 trace -e "\e[34m$(git -C "$tmp/merged" rev-parse HEAD)\e[0m"
  64 trace -n "Reading pinned nixpkgs-vet version from pinned-version.txt.. "
  65 toolVersion=$(<"$tmp/merged/ci/nixpkgs-vet/pinned-version.txt")
  66 trace -e "\e[34m$toolVersion\e[0m"
  67
  68 trace -n "Building tool.. "
  69 nix-build https://github.com/NixOS/nixpkgs-vet/tarball/"$toolVersion" -o "$tmp/tool" -A build
  70 trace "Running nixpkgs-vet.."
  71 "$tmp/tool/bin/nixpkgs-vet" --base "$tmp/base" "$tmp/merged"