build-test-publish.yml

name: Publish to PSGallery
env:
 PSGALLERY_API_KEY: ${{ secrets.PSGALLERY_API_KEY }}
on:
  push:
    branches:
     - main
     - prerelease

permissions:
  contents: write

jobs:
  publish-to-psgallery:
    name: Publish
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.repository_owner == 'ShaunLawrie'
    steps:
      - name: Check out repository code
        uses: actions/checkout@v3
      - name: Version Bump
        shell: pwsh
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          $ErrorActionPreference = "Stop"
          & .\PwshSpectreConsole\Build.ps1
          $env:PSModulePath = @($env:PSModulePath, ".\PwshSpectreConsole\") -join ":"
          Invoke-Pester -CI
          $version = Get-Module PwshSpectreConsole -ListAvailable | Sort-Object -Property Version -Descending | Select-Object -First 1 -ExpandProperty Version
          if($null -eq $version) { throw "Failed to load version" }
          $onlineVersion = Find-Module -Name PwshSpectreConsole -RequiredVersion $version -ErrorAction SilentlyContinue
          $newVersion = [version]::new($version.Major, $version.Minor, $version.Build)
          if($null -eq $onlineVersion) {
            Write-Warning "Online version doesn't exist, this version $newVersion will be published without a version bump"
          } else {
            $newVersion = [version]::new($version.Major, $version.Minor, $version.Build + 1)
            Write-Host "Bumping version from $version to $newVersion"
            Update-ModuleManifest -Path .\PwshSpectreConsole\PwshSpectreConsole.psd1 -ModuleVersion $newVersion
            git config --global user.name 'Shaun Lawrie (via GitHub Actions)'
            git config --global user.email 'shaun.r.lawrie@gmail.com'
            git add PwshSpectreConsole/PwshSpectreConsole.psd1
            git commit -m "[skip ci] Bump version to $newVersion"
            git push
          }
          Import-Module .\PwshSpectreConsole\PwshSpectreConsole.psd1 -Force
          Publish-Module -Name PwshSpectreConsole -Exclude "Build.ps1" -NugetApiKey $env:PSGALLERY_API_KEY
          gh release create "v$newVersion" --target main --generate-notes
  
  publish-prerelease-to-psgallery:
    name: Publish Prerelease
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/prerelease' && github.repository_owner == 'ShaunLawrie'
    steps:
      - name: Check out repository code
        uses: actions/checkout@v3
      - name: Version Bump and Publish
        shell: pwsh
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          $ErrorActionPreference = "Stop"
          & ./PwshSpectreConsole/Build.ps1
          $env:PSModulePath = @($env:PSModulePath, ".\PwshSpectreConsole\") -join ":"
          Invoke-Pester -CI
          $version = Get-Module PwshSpectreConsole -ListAvailable | Sort-Object -Property Version -Descending | Select-Object -First 1 -ExpandProperty Version
          if($null -eq $version) { throw "Failed to load version" }
          $onlineVersions = Find-Module -Name PwshSpectreConsole -AllowPrerelease -AllVersions
          
          $latestStableVersion = $onlineVersions | Where-Object { $_.Version -notlike "*prerelease*" } | Sort-Object -Property Version -Descending | Select-Object -First 1 -ExpandProperty Version
          $latestStableVersion = [version]$latestStableVersion
          $latestPrereleaseVersion = $onlineVersions | Where-Object { $_.Version -like "*prerelease*" } | Sort-Object -Property Version -Descending | Select-Object -First 1 -ExpandProperty Version
          $latestPrereleaseTag = $latestPrereleaseVersion.Split("-prerelease")[1] # format is like -prerelease6, output here is just 6
          $latestPrereleaseVersion = [version]$latestPrereleaseVersion.Split("-prerelease")[0]

          # Generate a new prerelease name, psgallery only allows characters 'a-zA-Z0-9' and a hyphen ('-') at the beginning of the prerelease string
          $newPrereleaseTag = "prerelease" + (([int]$latestPrereleaseTag) + 1)

          # Prerelease will always be at least one minor version above the latest published stable version so when it's merged to main the minor version will get bumped
          # To bump a major version the manifest would be edited manually to vnext.0.0 before merging to main
          $newVersion = [version]::new($latestStableVersion.Major, $latestStableVersion.Minor + 1, 0)
          
          if($newVersion -eq $oldVersion) {
            Write-Host "Version is not being bumped in prerelease"
          } else {
            Write-Host "Bumping version from $version to $newVersion"
            Update-ModuleManifest -Path .\PwshSpectreConsole\PwshSpectreConsole.psd1 -ModuleVersion $newVersion
            git config --global user.name 'Shaun Lawrie (via GitHub Actions)'
            git config --global user.email 'shaun.r.lawrie@gmail.com'
            git add PwshSpectreConsole/PwshSpectreConsole.psd1
            git commit -m "[skip ci] Bump version to $newVersion"
            git push
          }

          # Mark as prerelease
          Update-ModuleManifest -Path .\PwshSpectreConsole\PwshSpectreConsole.psd1 -PrivateData @{ Prerelease = "$newPrereleaseTag" }

          # Publish pre-release version
          Import-Module .\PwshSpectreConsole\PwshSpectreConsole.psd1 -Force
          Publish-Module -Name PwshSpectreConsole -Exclude "Build.ps1" -NugetApiKey $env:PSGALLERY_API_KEY -AllowPrerelease

          # Create a gh release for it
          gh release create "v$newVersion-$newPrereleaseTag" --target prerelease --generate-notes