Added support for --amend.

README.md

@@ -28,7 +28,8 @@ jobs:
         github-token: ${{ secrets.GITHUB_TOKEN }}
         push-branch: 'master'
         commit-message: 'publish'
-        force-add: 'true'
+        commit-amend: false
+        force-add: true
         files: a.txt b.txt c.txt dirA/ dirB/ dirC/a.txt
         name: commiter name
         email: [email protected] 

action.yml

@@ -15,18 +15,22 @@ inputs:
     description: 'Specify commit message'
     required: false
     default: 'autocommit'
+  commit-amend:
+    description: 'Amend a previous commit.'
+    required: false
+    default: false
   force-add:
     description: 'Force add files, useful for adding ignored files.'
     required: false
-    default: 'false'
+    default: false
   force-push:
     description: 'Force push.'
     required: false
-    default: 'false'
+    default: false
   rebase:
     description: 'Pull and rebase before commiting. Useful when using commit inside matrix.'
     required: false
-    default: 'false'
+    default: false
   files:
     description: 'Specific files to add.'
     required: false

entrypoint.py

@@ -12,6 +12,7 @@ def run():
     github_actor = local.env.get('GITHUB_ACTOR')
     github_token = local.env.get('INPUT_GITHUB-TOKEN')
     commit_message = local.env.get('INPUT_COMMIT-MESSAGE')
+    commit_amend = local.env.get('INPUT_COMMIT-AMEND')
     force_add = local.env.get('INPUT_FORCE-ADD')
     force_push = local.env.get('INPUT_FORCE-PUSH')
     branch = local.env.get('INPUT_PUSH-BRANCH') or "/".join(local.env.get('GITHUB_REF').split('/')[2:])
@@ -51,7 +52,15 @@ def run():
         push_args.append('--force')
     debug(git(['checkout', '-B', branch]))
     debug(git(add_args))
-    debug(git(['commit', '-m', commit_message], retcode=None))
+    commit_args = ['commit']
+    if commit_message:
+        commit_args.append('-m')
+        commit_args.append(commit_message)
+    else:
+        commit_args.append('--no-edit')
+    if commit_amend:
+        commit_args.append('--amend')
+    debug(git(commit_args, retcode=None))
     debug(git(push_args))
 
 if __name__ == '__main__':