Update test.yml (#81)

.github/workflows/test.yml

@@ -4,11 +4,28 @@ on:
   push:
     branches:
       - main
+      - '**'
   pull_request:
     branches:
       - main
 
 jobs:
+  test-no-head-sha:
+    runs-on: ubuntu-latest
+    name: Test changed-files missing head sha
+    steps:
+      - name: Checkout to branch
+        uses: actions/checkout@v2
+      
+      - name: Run changed-files with defaults
+        id: changed-files
+        continue-on-error: true
+        uses: ./
+      
+      - name: Show output
+        run: |
+          echo "${{ toJSON(steps.changed-files.outputs) }}"
+
   test:
     runs-on: ubuntu-latest
     name: Test changed-files

entrypoint.sh

@@ -7,20 +7,22 @@ git remote set-url origin "https://${INPUT_TOKEN}@github.com/${GITHUB_REPOSITORY
 echo "Getting head sha..."
 
 if [[ -z $GITHUB_BASE_REF ]]; then
-  HEAD_SHA=$(git rev-parse HEAD^1 || true)
+  HEAD_SHA=$(git rev-parse HEAD^1 2>&1) && exit_status=$? || exit_status=$?
 else
   TARGET_BRANCH=${GITHUB_BASE_REF}
   git fetch --depth=1 origin "${TARGET_BRANCH}":"${TARGET_BRANCH}"
-  HEAD_SHA=$(git rev-parse "${TARGET_BRANCH}" || true)
+  HEAD_SHA=$(git rev-parse "${TARGET_BRANCH}" 2>&1) && exit_status=$? || exit_status=$?
 fi
 
-if [[ -z $HEAD_SHA ]]; then
-  echo "::warning::Unable to determine the head sha: $HEAD_SHA."
+if [[ $exit_status -ne 0 ]]; then
+  echo "::warning::Unable to determine the head sha"
   echo "::warning::You seem to be missing 'fetch-depth: 0' or 'fetch-depth: 2'"
   exit 1
-else
-  echo "Using head sha: $HEAD_SHA..."
-  if [[ -z "$INPUT_FILES" ]]; then
+fi
+
+echo "Using head sha: $HEAD_SHA..."
+
+if [[ -z "$INPUT_FILES" ]]; then
   echo "Getting diff..."
   ADDED=$(git diff --diff-filter=A --name-only "$HEAD_SHA" | tr "\n" "$INPUT_SEPARATOR" | sed -E "s/($INPUT_SEPARATOR)$//")
   COPIED=$(git diff --diff-filter=C --name-only "$HEAD_SHA" | tr "\n" "$INPUT_SEPARATOR" | sed -E "s/($INPUT_SEPARATOR)$//")
@@ -32,7 +34,7 @@ else
   UNKNOWN=$(git diff --diff-filter=X --name-only "$HEAD_SHA" | tr "\n" "$INPUT_SEPARATOR" | sed -E "s/($INPUT_SEPARATOR)$//")
   ALL_CHANGED=$(git diff --diff-filter="*ACDMRTUX" --name-only "$HEAD_SHA" | tr "\n" "$INPUT_SEPARATOR" | sed -E "s/($INPUT_SEPARATOR)$//")
   ALL_MODIFIED_FILES=$(git diff --diff-filter="ACM" --name-only "$HEAD_SHA" | tr "\n" "$INPUT_SEPARATOR" | sed -E "s/($INPUT_SEPARATOR)$//")
-  else
+else
   ADDED_ARRAY=()
   COPIED_ARRAY=()
   DELETED_ARRAY=()
@@ -89,8 +91,8 @@ else
   ALL_CHANGED=$(echo "${ALL_CHANGED_ARRAY[*]}" | sed 's/  */'"$INPUT_SEPARATOR"'/g')
   # shellcheck disable=SC2001
   ALL_MODIFIED_FILES=$(echo "${ALL_MODIFIED_FILES_ARRAY[*]}" | sed 's/  */'"$INPUT_SEPARATOR"'/g')
-  fi
 fi
+
 echo "Added files: $ADDED"
 echo "Copied files: $COPIED"
 echo "Deleted files: $DELETED"