Add support for SHA256 repositories

New input parameter 'repo-sha256' to set the Git object format
to "sha256" when initializing a Git repository.

README.md

@@ -127,8 +127,9 @@ Please refer to the [release page](https://github.com/actions/checkout/releases/
     # https://my-ghes-server.example.com
     github-server-url: ''
 
-    # Specify the Git object format for repository initialization (sha1, sha256).
-    object-format: ''
+    # Set Git object format to "sha256" when initializing a Git repository.
+    # Default: false
+    repo-sha256: ''
 ```
 <!-- end usage -->
 

__test__/git-auth-helper.test.ts

@@ -824,8 +824,7 @@ async function setup(testName: string): Promise<void> {
     sshUser: '',
     workflowOrganizationId: 123456,
     setSafeDirectory: true,
-    githubServerUrl: githubServerUrl,
-    objectFormat: undefined
+    githubServerUrl: githubServerUrl
   }
 }
 

action.yml

@@ -98,9 +98,10 @@ inputs:
   github-server-url:
     description: The base URL for the GitHub instance that you are trying to clone from, will use environment defaults to fetch from the same instance that the workflow is running from unless specified. Example URLs are https://github.com or https://my-ghes-server.example.com
     required: false
-  object-format:
-    description: 'Specify the Git object format for repository initialization (sha1, sha256).'
+  repo-sha256:
+    description: 'Set Git object format to "sha256" when initializing a Git repository.'
     required: false
+    default: false
 outputs:
   ref:
     description: 'The branch, tag or SHA that was checked out'

dist/index.js

@@ -709,11 +709,11 @@ class GitCommandManager {
     getWorkingDirectory() {
         return this.workingDirectory;
     }
-    init(objectFormat) {
+    init(repoSHA256) {
         return __awaiter(this, void 0, void 0, function* () {
             const args = ['init'];
-            if (objectFormat) {
-                args.push(`--object-format=${objectFormat}`);
+            if (repoSHA256) {
+                args.push(`--object-format=sha256`);
             }
             args.push(this.workingDirectory);
             yield this.execGit(args);
@@ -1241,7 +1241,7 @@ function getSource(settings) {
             // Initialize the repository
             if (!fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))) {
                 core.startGroup('Initializing the repository');
-                yield git.init(settings.objectFormat);
+                yield git.init(settings.repoSHA256);
                 yield git.remoteAdd('origin', repositoryUrl);
                 core.endGroup();
             }
@@ -1836,9 +1836,10 @@ function getInputs() {
         // Determine the GitHub URL that the repository is being hosted from
         result.githubServerUrl = core.getInput('github-server-url');
         core.debug(`GitHub Host URL = ${result.githubServerUrl}`);
-        // Retrieve the Git object format for initializing a Git repository.
-        result.objectFormat = core.getInput('object-format');
-        core.debug(`git object format = ${result.objectFormat}`);
+        // Set Git object format to "sha256" when initializing a Git repository.
+        result.repoSHA256 =
+            (core.getInput('repo-sha256') || 'false').toUpperCase() === 'TRUE';
+        core.debug(`Repo object format sha256 = ${result.repoSHA256}`);
         return result;
     });
 }

src/git-command-manager.ts

@@ -42,7 +42,7 @@ export interface IGitCommandManager {
   ): Promise<void>
   getDefaultBranch(repositoryUrl: string): Promise<string>
   getWorkingDirectory(): string
-  init(objectFormat?: string): Promise<void>
+  init(repoSHA256?: boolean): Promise<void>
   isDetached(): Promise<boolean>
   lfsFetch(ref: string): Promise<void>
   lfsInstall(): Promise<void>
@@ -327,10 +327,10 @@ class GitCommandManager {
     return this.workingDirectory
   }
 
-  async init(objectFormat?: string): Promise<void> {
+  async init(repoSHA256?: boolean): Promise<void> {
     const args = ['init']
-    if (objectFormat) {
-      args.push(`--object-format=${objectFormat}`)
+    if (repoSHA256) {
+      args.push(`--object-format=sha256`)
     }
     args.push(this.workingDirectory)
     await this.execGit(args)

src/git-source-provider.ts

@@ -110,7 +110,7 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
       !fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))
     ) {
       core.startGroup('Initializing the repository')
-      await git.init(settings.objectFormat)
+      await git.init(settings.repoSHA256)
       await git.remoteAdd('origin', repositoryUrl)
       core.endGroup()
     }

src/git-source-settings.ts

@@ -120,7 +120,7 @@ export interface IGitSourceSettings {
   githubServerUrl: string | undefined
 
   /**
-   * Specify the Git object format for repository initialization (sha1, sha256).
+   * Set Git object format to "sha256" when initializing a Git repository
    */
-  objectFormat: string | undefined
+  repoSHA256: boolean
 }

src/input-helper.ts

@@ -161,9 +161,10 @@ export async function getInputs(): Promise<IGitSourceSettings> {
   result.githubServerUrl = core.getInput('github-server-url')
   core.debug(`GitHub Host URL = ${result.githubServerUrl}`)
 
-  // Retrieve the Git object format for initializing a Git repository.
-  result.objectFormat = core.getInput('object-format')
-  core.debug(`git object format = ${result.objectFormat}`)
+  // Set Git object format to "sha256" when initializing a Git repository.
+  result.repoSHA256 =
+    (core.getInput('repo-sha256') || 'false').toUpperCase() === 'TRUE'
+  core.debug(`Repo object format sha256 = ${result.repoSHA256}`)
 
   return result
 }