Add support for SHA256 repositories

New input parameter to specify the git object format when initializing a
git repository.

Author: eliroca

README.md

@@ -126,6 +126,10 @@ Please refer to the [release page](https://github.com/actions/checkout/releases/
     # running from unless specified. Example URLs are https://github.com or
     # https://my-ghes-server.example.com
     github-server-url: ''
+
+    # Specify the Git object format for repository initialization (sha1, sha256).
+    # Default: null
+    object-format: ''
 ```
 <!-- end usage -->
 

__test__/git-auth-helper.test.ts

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

dist/index.js

@@ -709,9 +709,14 @@ class GitCommandManager {
     getWorkingDirectory() {
         return this.workingDirectory;
     }
-    init() {
+    init(objectFormat) {
         return __awaiter(this, void 0, void 0, function* () {
-            yield this.execGit(['init', this.workingDirectory]);
+            const args = ['init'];
+            if (objectFormat) {
+                args.push(`--object-format=${objectFormat}`);
+            }
+            args.push(this.workingDirectory);
+            yield this.execGit(args);
         });
     }
     isDetached() {
@@ -1236,7 +1241,7 @@ function getSource(settings) {
             // Initialize the repository
             if (!fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))) {
                 core.startGroup('Initializing the repository');
-                yield git.init();
+                yield git.init(settings.objectFormat);
                 yield git.remoteAdd('origin', repositoryUrl);
                 core.endGroup();
             }
@@ -1831,6 +1836,9 @@ 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}`);
         return result;
     });
 }

src/git-command-manager.ts

@@ -42,7 +42,7 @@ export interface IGitCommandManager {
   ): Promise<void>
   getDefaultBranch(repositoryUrl: string): Promise<string>
   getWorkingDirectory(): string
-  init(): Promise<void>
+  init(objectFormat?: string): Promise<void>
   isDetached(): Promise<boolean>
   lfsFetch(ref: string): Promise<void>
   lfsInstall(): Promise<void>
@@ -327,8 +327,13 @@ class GitCommandManager {
     return this.workingDirectory
   }
 
-  async init(): Promise<void> {
-    await this.execGit(['init', this.workingDirectory])
+  async init(objectFormat?: string): Promise<void> {
+    const args = ['init']
+    if (objectFormat) {
+      args.push(`--object-format=${objectFormat}`)
+    }
+    args.push(this.workingDirectory)
+    await this.execGit(args)
   }
 
   async isDetached(): Promise<boolean> {

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()
+      await git.init(settings.objectFormat)
       await git.remoteAdd('origin', repositoryUrl)
       core.endGroup()
     }

src/git-source-settings.ts

@@ -118,4 +118,9 @@ export interface IGitSourceSettings {
    * User override on the GitHub Server/Host URL that hosts the repository to be cloned
    */
   githubServerUrl: string | undefined
+
+  /**
+   * Specify the Git object format for repository initialization (sha1, sha256).
+   */
+  objectFormat: string | undefined
 }

src/input-helper.ts

@@ -161,5 +161,9 @@ 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}`)
+
   return result
 }