Add configurable ReleaseFiles parameter for release file patterns

Co-authored-by: MariusStorhaug <17722253+MariusStorhaug@users.noreply.github.com>

Author: Copilot

README.md

@@ -50,6 +50,7 @@ The action can be configured using the following settings:
 | `MajorLabels` | A comma separated list of labels that trigger a major release. | `major, breaking` | false |
 | `MinorLabels` | A comma separated list of labels that trigger a minor release. | `minor, feature` | false |
 | `PatchLabels` | A comma separated list of labels that trigger a patch release. | `patch, fix` | false |
+| `ReleaseFiles` | A comma separated list of file patterns (glob) that warrant a new release when changed. If specified and a pull request does not change any matching files, the release will be skipped. | `''` | false |
 | `UsePRTitleAsReleaseName` | When enabled, uses the pull request title as the name for the GitHub release. | `false` | false |
 | `UsePRBodyAsReleaseNotes` | When enabled, uses the pull request body as the release notes for the GitHub release. | `true` | false |
 | `UsePRTitleAsNotesHeading` | When enabled, the release notes will begin with the pull request title as a H1 heading followed by the pull request body. The title will include a reference to the PR number. | `true` | false |
@@ -70,10 +71,11 @@ The action's configuration can be changed by altering the settings in the config
 ```yaml
 DatePrereleaseFormat: 'yyyyMMddHHmm'
 IncrementalPrerelease: false
+ReleaseFiles: 'action.yml, src/**'
 VersionPrefix: ''
 ```
 
-This example uses the date format for the prerelease, disables the incremental prerelease and removes the version prefix.
+This example uses the date format for the prerelease, disables the incremental prerelease, only triggers releases for changes to `action.yml` and files under `src/`, and removes the version prefix.
 
 ## Example
 

action.yml

@@ -50,6 +50,10 @@ inputs:
     description: A comma separated list of labels that trigger a patch release.
     required: false
     default: patch, fix
+  ReleaseFiles:
+    description: A comma separated list of file patterns (glob) that warrant a new release when changed. If specified and a pull request does not change any matching files, the release will be skipped.
+    required: false
+    default: ''
   UsePRTitleAsReleaseName:
     description: When enabled, uses the pull request title as the name for the GitHub release.
     required: false
@@ -107,6 +111,7 @@ runs:
         PSMODULE_AUTO_RELEASE_INPUT_MajorLabels: ${{ inputs.MajorLabels }}
         PSMODULE_AUTO_RELEASE_INPUT_MinorLabels: ${{ inputs.MinorLabels }}
         PSMODULE_AUTO_RELEASE_INPUT_PatchLabels: ${{ inputs.PatchLabels }}
+        PSMODULE_AUTO_RELEASE_INPUT_ReleaseFiles: ${{ inputs.ReleaseFiles }}
         PSMODULE_AUTO_RELEASE_INPUT_UsePRBodyAsReleaseNotes: ${{ inputs.UsePRBodyAsReleaseNotes }}
         PSMODULE_AUTO_RELEASE_INPUT_UsePRTitleAsReleaseName: ${{ inputs.UsePRTitleAsReleaseName }}
         PSMODULE_AUTO_RELEASE_INPUT_UsePRTitleAsNotesHeading: ${{ inputs.UsePRTitleAsNotesHeading }}

src/main.ps1

@@ -56,6 +56,12 @@ LogGroup 'Set configuration' {
     $minorLabels = (![string]::IsNullOrEmpty($configuration.MinorLabels) ? $configuration.MinorLabels : $env:PSMODULE_AUTO_RELEASE_INPUT_MinorLabels) -split ',' | ForEach-Object { $_.Trim() }
     $patchLabels = (![string]::IsNullOrEmpty($configuration.PatchLabels) ? $configuration.PatchLabels : $env:PSMODULE_AUTO_RELEASE_INPUT_PatchLabels) -split ',' | ForEach-Object { $_.Trim() }
 
+    $releaseFilesRaw = ![string]::IsNullOrEmpty($configuration.ReleaseFiles) ? $configuration.ReleaseFiles : $env:PSMODULE_AUTO_RELEASE_INPUT_ReleaseFiles
+    $releaseFiles = @()
+    if (![string]::IsNullOrEmpty($releaseFilesRaw)) {
+        $releaseFiles = $releaseFilesRaw -split ',' | ForEach-Object { $_.Trim() } | Where-Object { $_ -ne '' }
+    }
+
     Write-Output '-------------------------------------------------'
     Write-Output "Auto cleanup enabled:           [$autoCleanup]"
     Write-Output "Auto patching enabled:          [$autoPatching]"
@@ -73,6 +79,7 @@ LogGroup 'Set configuration' {
     Write-Output "Major labels:                   [$($majorLabels -join ', ')]"
     Write-Output "Minor labels:                   [$($minorLabels -join ', ')]"
     Write-Output "Patch labels:                   [$($patchLabels -join ', ')]"
+    Write-Output "Release files:                  [$($releaseFiles -join ', ')]"
     Write-Output '-------------------------------------------------'
 }
 
@@ -136,6 +143,39 @@ if ($ignoreRelease) {
     return
 }
 
+if ($releaseFiles.Count -gt 0) {
+    LogGroup 'Check changed files against release file patterns' {
+        $prNumber = $pull_request.number
+        $changedFiles = gh pr diff $prNumber --name-only | ForEach-Object { $_.Trim() } | Where-Object { $_ -ne '' }
+        if ($LASTEXITCODE -ne 0) {
+            Write-Error "Failed to get changed files for PR #$prNumber."
+            exit $LASTEXITCODE
+        }
+        Write-Output "Changed files in PR #$($prNumber):"
+        $changedFiles | ForEach-Object { Write-Output "  - $_" }
+        Write-Output ''
+        Write-Output "Release file patterns:"
+        $releaseFiles | ForEach-Object { Write-Output "  - $_" }
+
+        $hasReleaseFileChanges = $false
+        :fileLoop foreach ($file in $changedFiles) {
+            foreach ($pattern in $releaseFiles) {
+                if ($file -like $pattern) {
+                    Write-Output "Match: [$file] matches pattern [$pattern]"
+                    $hasReleaseFileChanges = $true
+                    break fileLoop
+                }
+            }
+        }
+
+        if (-not $hasReleaseFileChanges) {
+            Write-Output 'No changed files match the configured release file patterns. Skipping release creation.'
+            return
+        }
+        Write-Output 'Changed files match release file patterns. Proceeding with release.'
+    }
+}
+
 $majorRelease = ($labels | Where-Object { $majorLabels -contains $_ }).Count -gt 0
 $minorRelease = ($labels | Where-Object { $minorLabels -contains $_ }).Count -gt 0 -and -not $majorRelease
 $patchRelease = (($labels | Where-Object { $patchLabels -contains $_ }).Count -gt 0 -or $autoPatching) -and -not $majorRelease -and -not $minorRelease