Add workingDirectory option

Let user override $GITHUB_WORKSPACE as default working directory

Defaults to undefined, the original behaviour is maintained

__test__/git-auth-helper.test.ts

@@ -820,7 +820,8 @@ async function setup(testName: string): Promise<void> {
     sshStrict: true,
     workflowOrganizationId: 123456,
     setSafeDirectory: true,
-    githubServerUrl: githubServerUrl
+    githubServerUrl: githubServerUrl,
+    workingDirectory: undefined
   }
 }
 

src/git-source-settings.ts

@@ -108,4 +108,9 @@ export interface IGitSourceSettings {
    * User override on the GitHub Server/Host URL that hosts the repository to be cloned
    */
   githubServerUrl: string | undefined
+
+  /**
+   * User override of the working directory (default is $GITHUB_WORKSPACE)
+   */
+  workingDirectory: string | undefined
 }

src/input-helper.ts

@@ -8,14 +8,14 @@ import {IGitSourceSettings} from './git-source-settings'
 export async function getInputs(): Promise<IGitSourceSettings> {
   const result = ({} as unknown) as IGitSourceSettings
 
-  // GitHub workspace
-  let githubWorkspacePath = process.env['GITHUB_WORKSPACE']
-  if (!githubWorkspacePath) {
-    throw new Error('GITHUB_WORKSPACE not defined')
+  // Working directory
+  let workingDirectory = core.getInput('workingDirectory') || process.env['GITHUB_WORKSPACE']
+  if (!workingDirectory) {
+    throw new Error('working dir not defined')
   }
-  githubWorkspacePath = path.resolve(githubWorkspacePath)
-  core.debug(`GITHUB_WORKSPACE = '${githubWorkspacePath}'`)
-  fsHelper.directoryExistsSync(githubWorkspacePath, true)
+  workingDirectory = path.resolve(workingDirectory)
+  core.debug(`working directory = '${workingDirectory}'`)
+  fsHelper.directoryExistsSync(workingDirectory, true)
 
   // Qualified repository
   const qualifiedRepository =
@@ -38,16 +38,16 @@ export async function getInputs(): Promise<IGitSourceSettings> {
   // Repository path
   result.repositoryPath = core.getInput('path') || '.'
   result.repositoryPath = path.resolve(
-    githubWorkspacePath,
+    workingDirectory,
     result.repositoryPath
   )
   if (
     !(result.repositoryPath + path.sep).startsWith(
-      githubWorkspacePath + path.sep
+      workingDirectory + path.sep
     )
   ) {
     throw new Error(
-      `Repository path '${result.repositoryPath}' is not under '${githubWorkspacePath}'`
+      `Repository path '${result.repositoryPath}' is not under '${workingDirectory}'`
     )
   }