bump-version.yml

name: bump-version

on:
  release:
    types: [ published ]
  workflow_dispatch:
    inputs:
      version:
        description: 'The optional version string for the next release.'
        required: false
        type: string
        default: ''

permissions: {}

jobs:
  bump-version:
    runs-on: [ ubuntu-latest ]

    concurrency:
      group: ${{ github.workflow }}
      cancel-in-progress: false

    steps:

      - name: Checkout code
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          token: ${{ secrets.COSTELLOBOT_TOKEN }}

      - name: Bump version
        id: bump-version
        shell: pwsh
        env:
          NEXT_VERSION: ${{ inputs.version }}
        run: |
          $properties = Join-Path "." "Directory.Build.props"

          $xml = [xml](Get-Content $properties)
          $versionPrefix = $xml.SelectSingleNode('Project/PropertyGroup/VersionPrefix')

          if (-Not [string]::IsNullOrEmpty(${env:NEXT_VERSION})) {
            $version = [System.Version]::new(${env:NEXT_VERSION})
            $assemblyVersionProperty = $xml.SelectSingleNode('Project/PropertyGroup/AssemblyVersion')
            $assemblyVersion = [System.Version]::new($version.Major, ($version.Major -eq 0 ? $version.Minor : 0), 0, 0)
            $assemblyVersionProperty.InnerText = $assemblyVersion.ToString()
          } else {
            $version = [System.Version]::new($versionPrefix.InnerText)
            $version = [System.Version]::new($version.Major, $version.Minor, $version.Build + 1)
          }

          $updatedVersion = $version.ToString()
          $versionPrefix.InnerText = $updatedVersion

          $settings = New-Object System.Xml.XmlWriterSettings
          $settings.Encoding = New-Object System.Text.UTF8Encoding($false)
          $settings.Indent = $true
          $settings.OmitXmlDeclaration = $true

          $writer = [System.Xml.XmlWriter]::Create($properties, $settings)

          $xml.Save($writer)

          $writer.Flush()
          $writer.Close()
          $writer = $null

          "" >> $properties

          "version=${updatedVersion}" >> $env:GITHUB_OUTPUT

      - name: Push changes to GitHub
        id: push-changes
        shell: pwsh
        env:
          GIT_COMMIT_USER_EMAIL: ${{ vars.GIT_COMMIT_USER_EMAIL }}
          GIT_COMMIT_USER_NAME: ${{ vars.GIT_COMMIT_USER_NAME }}
          NEXT_VERSION: ${{ steps.bump-version.outputs.version }}
        run: |
          $gitStatus = (git status --porcelain)

          if ([string]::IsNullOrEmpty($gitStatus)) {
            throw "No changes to commit."
          }

          git config color.diff always
          git --no-pager diff

          $branchName = "bump-version-${env:NEXT_VERSION}"

          git config user.email ${env:GIT_COMMIT_USER_EMAIL} | Out-Null
          git config user.name ${env:GIT_COMMIT_USER_NAME} | Out-Null
          git fetch origin --no-tags | Out-Null
          git rev-parse --verify --quiet "remotes/origin/${branchName}" | Out-Null

          if ($LASTEXITCODE -eq 0) {
            Write-Host "Branch ${branchName} already exists."
            exit 0
          }

          git checkout -b $branchName
          git add .
          git commit -m "Bump version`n`nBump version to ${env:NEXT_VERSION} for the next release."
          git push -u origin $branchName

          "branch-name=${branchName}" >> $env:GITHUB_OUTPUT
          "updated-version=true" >> $env:GITHUB_OUTPUT
          "version=${env:NEXT_VERSION}" >> $env:GITHUB_OUTPUT

      - name: Create pull request
        if: steps.push-changes.outputs.updated-version == 'true'
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        env:
          BASE_BRANCH: ${{ github.event.repository.default_branch }}
          HEAD_BRANCH: ${{ steps.push-changes.outputs.branch-name }}
          NEXT_VERSION: ${{ steps.push-changes.outputs.version }}
        with:
          github-token: ${{ secrets.COSTELLOBOT_TOKEN }}
          script: |
            const nextVersion = process.env.NEXT_VERSION;
            const { repo, owner } = context.repo;
            const workflowUrl = `${process.env.GITHUB_SERVER_URL}/${owner}/${repo}/actions/runs/${process.env.GITHUB_RUN_ID}`;

            const { data: pr } = await github.rest.pulls.create({
              title: 'Bump version',
              owner,
              repo,
              head: process.env.HEAD_BRANCH,
              base: process.env.BASE_BRANCH,
              draft: true,
              body: [
                `Bump version to \`${nextVersion}\` for the next release.`,
                '',
                `This pull request was generated by [GitHub Actions](${workflowUrl}).`
              ].join('\n')
            });

            core.notice(`Created pull request ${owner}/${repo}#${pr.number}: ${pr.html_url}`);

            try {
              const { data: milestones } = await github.rest.issues.listMilestones({
                owner,
                repo,
                state: 'open',
              });

              const title = `v${nextVersion}`;
              let milestone = milestones.find((p) => p.title === title);

              if (!milestone) {
                const created = await github.rest.issues.createMilestone({
                  owner,
                  repo,
                  title,
                });
                milestone = created.data;
              }

              await github.rest.issues.update({
                owner,
                repo,
                issue_number: pr.number,
                milestone: milestone.number
              });
            } catch (error) {
              // Ignore
            }

  close-milestone:
    runs-on: [ ubuntu-latest ]
    if: github.event_name == 'release'

    concurrency:
      group: ${{ github.workflow }}
      cancel-in-progress: false

    steps:

      - name: Close milestone
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        env:
          RELEASE_DATE: ${{ github.event.release.published_at }}
          RELEASE_VERSION: ${{ github.event.release.tag_name }}
        with:
          github-token: ${{ secrets.COSTELLOBOT_TOKEN }}
          script: |
            const { repo, owner } = context.repo;

            const { data: milestones } = await github.rest.issues.listMilestones({
              owner,
              repo,
              state: 'open',
            });

            const milestone = milestones.find((p) => p.title === process.env.RELEASE_VERSION);

            if (!milestone) {
              return;
            }

            try {
              await github.rest.issues.updateMilestone({
                owner,
                repo,
                milestone_number: milestone.number,
                state: 'closed',
                due_on: process.env.RELEASE_DATE,
              });
            } catch (error) {
              // Ignore
            }