prerelease.yml

name: Global prerelease

# Push the actual tag to the global-tz branch (not the iana-tz branch!)
# Then push the tag suffixed by -prerelease to the main branch

on:
  push:
    branches:
      - '20*-prerelease'
    tags:
      - '20*-prerelease'

jobs:
  prerelease:
    runs-on: ubuntu-latest
    steps:
    - name: Git setup
      run: |
        git config --global user.email "scolebourne@joda.org"
        git config --global user.name "Stephen Colebourne"
        git config --global advice.detachedHead false
        git config --global init.defaultBranch "main"

    - name: Checkout global-tz
      uses: actions/checkout@v4
      with:
        ref: 'global-tz'
        fetch-depth: 0

    - name: Find version
      run: |
        MAIN_VERSION1=${GITHUB_REF/#refs\/tags\//}
        MAIN_VERSION=${MAIN_VERSION1/#refs\/heads\//}
        ACTUAL_VERSION=${MAIN_VERSION%-prerelease}
        echo "TAG_VERSION=${ACTUAL_VERSION}" >> $GITHUB_ENV
        echo "MAIN_VERSION=${MAIN_VERSION}"
        echo "ACTUAL_VERSION=${ACTUAL_VERSION}"

    - name: Install lzip
      run: |
        sudo apt-get update -y
        sudo apt-get install -y lzip

    - name: Build
      run: |
        echo ${{ env.TAG_VERSION }}
        git checkout global-tz
        git fetch --all --tags --prune
        git tag --list
        git reset --hard ${{ env.TAG_VERSION }}
        ls -la
        git describe --abbrev=7 --dirty
        git describe --match "[0-9][0-9][0-9][0-9][a-z]*" --abbrev=7 --dirty
        git describe --match '[0-9][0-9][0-9][0-9][a-z]*' --abbrev=7 --dirty
        make check_mild VERSION="${{ env.TAG_VERSION }}" ZONETABLES="zone.tab"
        make tarballs VERSION="${{ env.TAG_VERSION }}"
        ls -la
        sha512sum tzcode${{ env.TAG_VERSION }}.tar.gz > tzcode${{ env.TAG_VERSION }}.tar.gz.sha512
        sha512sum tzdata${{ env.TAG_VERSION }}.tar.gz > tzdata${{ env.TAG_VERSION }}.tar.gz.sha512
        sha512sum tzdb-${{ env.TAG_VERSION }}.tar.lz > tzdb-${{ env.TAG_VERSION }}.tar.lz.sha512
        sha512sum tzdata${{ env.TAG_VERSION }}-rearguard.tar.gz > tzdata${{ env.TAG_VERSION }}-rearguard.tar.gz.sha512
        ls -la

    - name: Publish artifacs to inspect manually
      uses: actions/upload-artifact@v4
      with:
        name: Output global-tz files
        retention-days: 5
        path: tz*${{ env.TAG_VERSION }}*.tar.*

# Use git rest --hard to ensure the state is what make expects, if this is not done the version file is incorrect in the output
# ZONETABLES is set to remove zone1970.tab, as the Makefile validation doesn't cover our use case
# check_mild is used instead of check, as the Makefile validation doesn't cover our use case