Automatic updater for msys2 packages

msys2_au.sh

#!/bin/sh
# https://github.com/msys2/MINGW-packages/discussions/28078

set -e

if [ "$#" -ne 1 ]; then
    echo "Error: This script requires exactly 1 argument." >&2
    echo "Usage: $0 <path/to/PKGBUILD>" >&2
    exit 1
fi

pkgbuild=$1

upstream=msys2/MINGW-packages

source $pkgbuild
echo -e "\e[36mChecking on new releases for $_realname ($pkgver)\e[0m"
# from https://github.com/$repo

for entry in "${msys2_references[@]}"; do
    if [[ $entry == anitya:* ]]; then
        value="${entry#*: }"
        echo "Using https://release-monitoring.org/project/$value/"
        version=$(curl -s https://release-monitoring.org/api/v2/versions/?project_id=$value | jq -r .latest_version)
        break
    fi
done

gh_regex='github\.com/([^/]+/[^/]+)'

if [[ -z "$version" && "${source[0]}" =~ $gh_regex ]]; then
    # fallback for projects with GitHub releases
    repo=${BASH_REMATCH[1]}
    tag=$(gh release view --repo $repo --json tagName --template '{{.tagName}}')
    version=${tag##*-}     # Remove everything before/including last hyphen
    version=${version#v}   # Remove leading 'v'
fi

# second chance for GitHub in msys2_repository_url
if [[ -z "$version" && "${msys2_repository_url}" =~ $gh_regex ]]; then
    # fallback for projects with GitHub releases
    repo=${BASH_REMATCH[1]}
    tag=$(gh release view --repo $repo --json tagName --template '{{.tagName}}') || true
    if [[ -z "$tag" ]]; then
        echo "hello"
        # maybe tags if not releases
        tag=$(gh api graphql -f query='
            query($owner: String!, $name: String!) {
                repository(owner: $owner, name: $name) {
                    refs(refPrefix: "refs/tags/", last: 1, orderBy: {field: TAG_COMMIT_DATE, direction: ASC}) {
                        nodes { name }
                    }
               }
            }' -f owner="${repo%/*}" -f name="${repo#*/}" --jq '.data.repository.refs.nodes[].name')
    fi
    version=${tag##*-}     # Remove everything before/including last hyphen
    version=${version#v}   # Remove leading 'v'
fi

if [[ -z "$version" ]]; then
    echo -e "\e[31mI don't know how to check for new release of $_realname.\e[0m"
    exit
fi

# makepkg --printsrcinfo | grep pkgver | awk '{print $3}'
if [[ "$pkgver" != "$version" ]]; then
    echo "New release $version!"
    sed -i -e "s/^pkgver=.*/pkgver=$version/;s/^pkgrel=.*/pkgrel=1/" $pkgbuild
    updpkgsums $pkgbuild
    ( cd "${pkgbuild%/*}" && makepkg-mingw )
    branch=$(git branch --show-current)
    # git worktree add
    if [[ "$branch" == "master" && $(git diff --cached --exit-code) ]]; then
        echo -e "\e[32mWe are on master branch without staged changes."
        echo -e "Let's commit into a new branch and open PR.'\e[0m"
        git switch -c $_realname
        git add $pkgbuild
        git commit -m "$_realname: update to $version"
        # FIXME externalize that in an env as all updates will be pushed to same remote
        # remote=$(git remote -v | awk -v user=$(gh api user -q ".login") '$0 ~ user {print $1; exit}')
        remote=$(git config --get-regexp '^remote\..*\.url$' "/$(gh api user -q .login)/" | cut -d. -f2)
        # overwrite previous version bumps if any
        git push $remote $realname --force
        git switch -
        gh pr create --draft --fill-first --base master --head $_realname --repo $upstream
        # --title "$_realname: update to $version" --body "Everything works again"
    else
        echo -e "\e[31mLooks like you are doing something at the moment in the repo. Can't do much more.\e[0m"
    fi
fi