129 lines
5.4 KiB
Bash
Executable file
129 lines
5.4 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p git gh -I nixpkgs=.
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#
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# Script to merge the currently open haskell-updates PR into master, bump the
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# Stackage version and Hackage versions, and open the next haskell-updates PR.
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set -eu -o pipefail
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# exit after printing first argument to this function
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function die {
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# echo the first argument
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echo "ERROR: $1"
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echo "Aborting!"
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exit 1
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}
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function help {
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echo "Usage: $0 HASKELL_UPDATES_PR_NUM"
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echo "Merge the currently open haskell-updates PR into master, and open the next one."
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echo
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echo " -h, --help print this help"
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echo " HASKELL_UPDATES_PR_NUM number of the currently open PR on NixOS/nixpkgs"
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echo " for the haskell-updates branch"
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echo
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echo "Example:"
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echo " \$ $0 137340"
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exit 1
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}
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# Read in the current haskell-updates PR number from the command line.
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while [[ $# -gt 0 ]]; do
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key="$1"
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case $key in
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-h|--help)
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help
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;;
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*)
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curr_haskell_updates_pr_num="$1"
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shift
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;;
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esac
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done
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if [[ -z "${curr_haskell_updates_pr_num-}" ]] ; then
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die "You must pass the current haskell-updates PR number as the first argument to this script."
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fi
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# Make sure you have gh authentication setup.
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if ! gh auth status 2>/dev/null ; then
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die "You must setup the \`gh\` command. Run \`gh auth login\`."
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fi
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# Make sure this is configured before we start doing anything
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push_remote="$(git config branch.haskell-updates.pushRemote)" \
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|| die 'Can'\''t determine pushRemote for haskell-updates. Please set using `git config branch.haskell-updates.pushremote <remote name>`.'
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# Fetch nixpkgs to get an up-to-date origin/haskell-updates branch.
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echo "Fetching origin..."
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git fetch origin >/dev/null
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# Make sure we are currently on a local haskell-updates branch.
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curr_branch="$(git rev-parse --abbrev-ref HEAD)"
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if [[ "$curr_branch" != "haskell-updates" ]]; then
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die "Current branch is not called \"haskell-updates\"."
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fi
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# Make sure our local haskell-updates branch is on the same commit as
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# origin/haskell-updates.
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curr_branch_commit="$(git rev-parse haskell-updates)"
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origin_haskell_updates_commit="$(git rev-parse origin/haskell-updates)"
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if [[ "$curr_branch_commit" != "$origin_haskell_updates_commit" ]]; then
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die "Current branch is not at the same commit as origin/haskell-updates"
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fi
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# Merge the current open haskell-updates PR.
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echo "Merging https://github.com/NixOS/nixpkgs/pull/${curr_haskell_updates_pr_num}..."
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gh pr merge --repo NixOS/nixpkgs --merge "$curr_haskell_updates_pr_num"
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# Update the list of Haskell package versions in NixOS on Hackage.
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echo "Updating list of Haskell package versions in NixOS on Hackage..."
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./maintainers/scripts/haskell/upload-nixos-package-list-to-hackage.sh
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# Update stackage, Hackage hashes, and regenerate Haskell package set
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echo "Updating Stackage..."
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./maintainers/scripts/haskell/update-stackage.sh --do-commit
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echo "Updating Hackage hashes..."
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./maintainers/scripts/haskell/update-hackage.sh --do-commit
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echo "Regenerating Hackage packages..."
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# Using fast here because after the hackage-update eval errors will likely break the transitive dependencies check.
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./maintainers/scripts/haskell/regenerate-hackage-packages.sh --fast --do-commit
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# Push these new commits to the haskell-updates branch
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echo "Pushing commits just created to the remote $push_remote/haskell-updates branch..."
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git push "$push_remote" haskell-updates
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# Open new PR
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new_pr_body=$(cat <<EOF
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### This Merge
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This PR is the regular merge of the \`haskell-updates\` branch into \`master\`.
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This branch is being continually built and tested by hydra at https://hydra.nixos.org/jobset/nixpkgs/haskell-updates. You may be able to find an up-to-date Hydra build report at [cdepillabout/nix-haskell-updates-status](https://github.com/cdepillabout/nix-haskell-updates-status).
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We roughly aim to merge these \`haskell-updates\` PRs at least once every two weeks. See the @NixOS/haskell [team calendar](https://cloud.maralorn.de/apps/calendar/p/H6migHmKX7xHoTFa) for who is currently in charge of this branch.
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### haskellPackages Workflow Summary
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Our workflow is currently described in [\`pkgs/development/haskell-modules/HACKING.md\`](https://github.com/NixOS/nixpkgs/blob/haskell-updates/pkgs/development/haskell-modules/HACKING.md).
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The short version is this:
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* We regularly update the Stackage and Hackage pins on \`haskell-updates\` (normally at the beginning of a merge window).
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* The community fixes builds of Haskell packages on that branch.
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* We aim at at least one merge of \`haskell-updates\` into \`master\` every two weeks.
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* We only do the merge if the [\`mergeable\`](https://hydra.nixos.org/job/nixpkgs/haskell-updates/mergeable) job is succeeding on hydra.
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* If a [\`maintained\`](https://hydra.nixos.org/job/nixpkgs/haskell-updates/maintained) package is still broken at the time of merge, we will only merge if the maintainer has been pinged 7 days in advance. (If you care about a Haskell package, become a maintainer!)
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More information about Haskell packages in nixpkgs can be found [in the nixpkgs manual](https://nixos.org/manual/nixpkgs/unstable/#haskell).
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---
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This is the follow-up to #${curr_haskell_updates_pr_num}. Come to [#haskell:nixos.org](https://matrix.to/#/#haskell:nixos.org) if you have any questions.
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EOF
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)
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echo "Opening a PR for the next haskell-updates merge cycle..."
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gh pr create --repo NixOS/nixpkgs --base master --head haskell-updates --title "haskellPackages: update stackage and hackage" --body "$new_pr_body"
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