action.yaml

name: Update Landing Zone Repository
description: Updates the files in a Landing Zone repository.

inputs:
  landing-zone-path:
    description: Path to the Landing Zone directory.
    required: true

  repo-sources-path:
    description: Path to the 'repo-sources' directory.
    required: true

  github-token:
    description: The token for the GitHub app that is allowed to create and update repositories in the organization.
    required: true

outputs:
  deleted-files:
    description: A JSON list of the deleted files relative to the 'path' input parameter.
    value: ${{ steps.delete-files.outputs.deleted-files }}

  deleted-directories:
    description: A JSON list of the deleted directories relative to the 'path' input parameter.
    value: ${{ steps.delete-files.outputs.deleted-directories }}

runs:
  using: composite
  steps:
    #* Get Landing Zone configuration
    - name: Get Landing Zone Repository
      id: lz-config
      shell: pwsh
      env:
        landingZonePath: ${{ inputs.landing-zone-path }}
        repoSourcesPath: ${{ inputs.repo-sources-path }}
      run: |
        #* Get Landing Zone configuration
        $lzConfig = Get-Content -Path "$env:landingZonePath/metadata.json" | ConvertFrom-Json -AsHashtable -Depth 4

        $sourceSync            = $lzConfig.repoSource -and $lzConfig.repoSource.source -and !$lzConfig.repoSource.disabled -and !$lzConfig.decommissioned
        $templateRepoSync      = !$sourceSync -and $lzConfig.repoTemplate -and !$lzConfig.disableWorkloadRepoTemplateSync
        $deleteFilesEnabled    = $sourceSync -or $templateRepoSync
        $sourcePath            = $sourceSync ? "$env:repoSourcesPath/$($lzConfig.repoSource.source)/contents" : $templateRepoSync ? "template-repo" : ""
        $deleteFilesConfigPath = $sourceSync ? "$env:repoSourcesPath/$($lzConfig.repoSource.source)/delete-files.json" : $templateRepoSync ? "template-repo/delete-files.json" : ""

        #* Write outputs
        $outputs = @{
          "repository"               = "$($lzConfig.organization)/$($lzConfig.repoName)"
          "source-sync"              = $sourceSync
          "source-path"              = $sourcePath
          "template-repo-sync"       = $templateRepoSync
          "template-repo"            = $lzConfig.repoTemplate
          "delete-files-enabled"     = $deleteFilesEnabled
          "delete-files-config-path" = $deleteFilesConfigPath
        }

        foreach ($output in $outputs.Keys) {
          Write-Output "$output=$($outputs[$output])" >> $env:GITHUB_OUTPUT
        }

    #* Checkout Landing Zone repository
    - name: Checkout Landing Zone Repository
      uses: actions/checkout@v4
      if: ${{ steps.lz-config.outputs.source-sync == 'true' || steps.lz-config.outputs.template-repo-sync == 'true' || steps.lz-config.outputs.delete-files-enabled == 'true' }}
      with:
        path: lz-repo
        repository: ${{ steps.lz-config.outputs.repository }}
        token: ${{ inputs.github-token }}

    #* Sync from source repository
    - name: Checkout Template Repository
      uses: actions/checkout@v4
      if: ${{ steps.lz-config.outputs.template-repo-sync == 'true' }}
      with:
        path: template-repo
        repository: ${{ steps.lz-config.outputs.template-repo }}
        token: ${{ inputs.github-token }}

    #* Copy files from source
    - name: Copy files from source
      if: ${{ steps.lz-config.outputs.source-sync == 'true' || steps.lz-config.outputs.template-repo-sync == 'true' }}
      shell: pwsh
      env:
        sourcePath: ${{ steps.lz-config.outputs.source-path }}
      run: |
        #* Copy files from source
        $exclusions = @(".git", "delete-files.json", "delete-files.jsonc")
        Copy-Item -Path "$env:sourcePath/*" -Destination "lz-repo" -Recurse -Exclude $exclusions -Force

    #* Delete files
    - name: Delete files
      id: delete-files
      if: ${{ steps.lz-config.outputs.delete-files-enabled == 'true' }}
      shell: pwsh
      env:
        configurationPath: ${{ steps.lz-config.outputs.delete-files-config-path }}
        actionPath: ${{ github.action_path }}
        debug: ${{ runner.debug }}
      run: |
        #* Delete-Files.ps1
        $DebugPreference = [bool]$env:debug ? "Continue" : "SilentlyContinue"

        #* Test path
        if (!(Test-Path -Path $env:configurationPath)) {
          Write-Host "Skipping. No delete-files configuration file found."
          exit
        }

        #* Run script
        $param = @{
          ConfigurationPath = $env:configurationPath
          Path              = "lz-repo"
          Depth             = 10
        }
        $result = & "$($env:actionPath)/src/Delete-Files.ps1" @param

        #* Write outputs
        Write-Output "deleted-files=$(, $result.DeletedFiles | ConvertTo-Json -Compress)" >> $env:GITHUB_OUTPUT
        Write-Output "deleted-directories=$(, $result.DeletedDirectories | ConvertTo-Json -Compress)" >> $env:GITHUB_OUTPUT

    #* Push changes
    - name: Push changes
      if: ${{ steps.lz-config.outputs.source-sync == 'true' || steps.lz-config.outputs.template-repo-sync == 'true' || steps.lz-config.outputs.delete-files-enabled == 'true' }}
      shell: pwsh
      run: |
        #* Push changes
        git config --global user.name github-actions
        git config --global user.email github-actions@github.com

        Push-Location "lz-repo"
        git pull -q
        git add .
        $changes = [bool](git diff --cached --name-only)
        if ($changes) {
          git commit -m "[skip ci] Update Landing Zone Repository: Update files"
          git push -q
        }
        else {
          Write-Host "Skipping. No file changes detected."
        }
        Pop-Location