Merge pull request #49 from stefanzweifel/feature/outputs

Feature: Add "changes_detected" output

.github/workflows/git-auto-commit.yml

@@ -0,0 +1,22 @@
+name: git-auto-commit
+
+on: push
+
+jobs:
+  git-auto-commit:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use git-auto-commit-action
+      id: "auto-commit-action"
+      uses: ./
+
+    - name: "no changes detected"
+      if: steps.auto-commit-action.outputs.changes_detected == false
+      run: "echo \"No changes detected\""
+
+    - name: "changes detected"
+      if: steps.auto-commit-action.outputs.changes_detected == true
+      run: "echo \"Changes detected\""

CHANGELOG.md

@@ -6,7 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased](https://github.com/stefanzweifel/git-auto-commit-action/compare/v4.0.0...HEAD)
 
-> TBD
+### Added
+- Add `changes_detected` output [#49](https://github.com/stefanzweifel/git-auto-commit-action/pull/49)
 
 ## [v4.0.0](https://github.com/stefanzweifel/git-auto-commit-action/compare/v3.0.0...v4.0.0) - 2020-02-24
 

README.md

@@ -103,6 +103,11 @@ jobs:
 
 Checkout [`action.yml`](https://github.com/stefanzweifel/git-auto-commit-action/blob/master/action.yml) for a full list of supported inputs.
 
+## Outputs
+You can use these outputs to trigger other Actions in your Workflow run based on the result of `git-auto-commit-action`.
+
+- `changes_detected`: Returns either "true" or "false" if the repository was dirty and files have changed.
+
 ## Troubleshooting
 
 ### Can't push commit to repository

action.yml

@@ -35,6 +35,10 @@ inputs:
     required: false
     default: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
 
+outputs:
+  changes_detected:
+    description: Value is "true", if the repository was dirty and file changes have been detected. Value is "false", if no changes have been detected.
+
 runs:
   using: 'node12'
   main: 'index.js'

entrypoint.sh

@@ -7,6 +7,8 @@ _main() {
 
     if _git_is_dirty; then
 
+        echo \"::set-output name=changes_detected::true\"
+
         _setup_git
 
         _switch_to_branch
@@ -17,6 +19,9 @@ _main() {
 
         _push_to_github
     else
+
+        echo \"::set-output name=changes_detected::false\"
+
         echo "Working tree clean. Nothing to commit."
     fi
 }