Change to checking failure in example and print changes as output

.github/workflows/main.yml

@@ -14,5 +14,5 @@ jobs:
         id: check-changes
         uses: ./
       - name: Evaluate if there are changes
-        if: steps.check-changes.outputs.changes == 1
+        if: steps.check-changes.outputs.outcome == failure()
         run: echo "There are uncommitted changes"

.github/workflows/print-changes.yml

@@ -0,0 +1,18 @@
+on: [push]
+
+name: Check uncommitted changes and print them out
+jobs:
+  check-uncommitted-changes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      - name: Make uncommitted changes by creating empty file
+        run: touch uncommitted.tmp
+      - name: Check for uncommitted changes
+        id: check-changes
+        uses: ./
+      - name: Print uncommitted changes
+        if: steps.check-changes.outputs.changes != ''
+        run: echo ${{ steps.check-changes.outputs.changes }}

README.md

@@ -6,8 +6,7 @@ A GitHub action for checking if repository has uncommitted changes.
 
 ### `changes`
 
-Value indicating if there are uncommitted changes in the repository. If `changed` is equal to `1`
-there are uncommitted changes. No changes will return `0`.
+Changes outputted by `git status --porcelain`.
 
 ### Example usage
 
@@ -26,7 +25,26 @@ jobs:
         id: check-changes
         uses: mskri/[email protected]
       - name: Evaluate if there are changes
-        if: steps.check-changes.outputs.changes == 1
+        if: steps.check-changes.outputs.outcome == failure()
+        run: echo "There are uncommitted changes"
+```
+
+```yaml
+name: Check uncommitted changes and print them out
+jobs:
+  check-uncommitted-changes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      - name: Make uncommitted changes by creating empty file
+        run: touch uncommitted.tmp
+      - name: Check for uncommitted changes
+        id: check-changes
+        uses: mskri/[email protected]
+      - name: Print uncommitted changes
+        if: steps.check-changes.outputs.changes != ''
         run: echo "There are uncommitted changes"
 ```
 

action.yml

@@ -1,11 +1,11 @@
 name: "Check uncommitted changes"
 description: "Checks if a git repository has uncommitted changes"
+branding:
+  icon: "alert-circle"
+  color: "yellow"
 outputs:
   changes:
-    description: "Value indicating if there are uncommitted changes in the repository"
+    description: "Uncommitted changes if any"
 runs:
   using: "docker"
   image: "Dockerfile"
-branding:
-  icon: "alert-circle"
-  color: "yellow"

entrypoint.sh

@@ -2,10 +2,16 @@
 set -e
 
 function check_uncommitted_changes() {
-  if [ -n "$(git status --porcelain)" ]; then
-    echo "1"
+  status=$(git status --porcelain)
+  if [ -n "$status" ]; then
+    status="${status//'%'/'%25'}"
+    status="${status//$'\n'/'%0A'}"
+    status="${status//$'\r'/'%0D'}"
+    echo "$status"
+    exit 1
   else
-    echo "0"
+    echo ""
+    exit 0
   fi
 }