feat: support checking committer signature

Author: Xianpeng Shen

README.md

@@ -39,7 +39,7 @@ jobs:
 ### `message`
 
 - **Description**: check commit message formatting convention.
-  - By default the rule follows [conventionalcommits](https://www.conventionalcommits.org/).
+  - By default the rule follows [conventional commits](https://www.conventionalcommits.org/).
 - Default: 'true'
 
 ### `branch`
@@ -58,6 +58,11 @@ jobs:
 - **Description**: check committer author email
 - Default: 'true'
 
+### `commit-signoff`
+
+- **Description**: check committer commit signature
+- Default: 'true'
+
 ### `dry-run`
 
 - **Description**: run checks without failing. exit code is 0 otherwise is 1.

action.yml

@@ -21,6 +21,10 @@ inputs:
     description: check committer author email
     required: false
     default: true
+  commit-signoff:
+    description: check committer commit signature
+    required: false
+    default: true
   dry-run:
     description: run checks without failing
     required: false
@@ -48,5 +52,6 @@ runs:
         BRANCH: ${{ inputs.branch }}
         AUTHOR_NAME: ${{ inputs.author-name }}
         AUTHOR_EMAIL: ${{ inputs.author-email }}
+        COMMIT_SIGNOFF: ${{ inputs.commit-signoff }}
         DRY_RUN: ${{ inputs.dry-run }}
         JOB_SUMMARY: ${{ inputs.job-summary }}

entrypoint.sh

@@ -17,6 +17,9 @@ run_commit_check(){
     if [[ "$AUTHOR_EMAIL" == "true" ]]; then
         args="$args --author-email"
     fi
+    if [[ "$COMMIT_SIGNOFF" == "true" ]]; then
+        args="$args --commit-signoff"
+    fi
 
     echo "commit-check $args"
     commit-check $args > result.txt