feat: add default branch prop for publish:github

Signed-off-by: shoukoo <shoukoo.koike@gmail.com>

packages/backend-common/api-report.md

@@ -183,8 +183,9 @@ export class Git {
         logger?: Logger | undefined;
     }) => Git;
     // (undocumented)
-    init({ dir }: {
+    init({ dir, defaultBranch, }: {
         dir: string;
+        defaultBranch?: string;
     }): Promise<void>;
     // (undocumented)
     merge({ dir, theirs, ours, author, committer, }: {

packages/backend-common/src/scm/git.test.ts

@@ -201,14 +201,16 @@ describe('Git', () => {
   describe('init', () => {
     it('should call isomorphic-git with the correct arguments', async () => {
       const dir = '/some/mock/dir';
+      const defaultBranch = 'master';
 
       const git = Git.fromAuth({});
 
-      await git.init({ dir });
+      await git.init({ dir, defaultBranch });
 
       expect(isomorphic.init).toHaveBeenCalledWith({
         fs,
         dir,
+        defaultBranch,
       });
     });
   });

packages/backend-common/src/scm/git.ts

@@ -150,12 +150,19 @@ export class Git {
     });
   }
 
-  async init({ dir }: { dir: string }): Promise<void> {
+  async init({
+    dir,
+    defaultBranch = 'master',
+  }: {
+    dir: string;
+    defaultBranch?: string;
+  }): Promise<void> {
     this.config.logger?.info(`Init git repository {dir=${dir}}`);
 
     return git.init({
       fs,
       dir,
+      defaultBranch,
     });
   }