From 68fd92dd9c278e9934c67936d83468b8811691a5 Mon Sep 17 00:00:00 2001
From: Jon Cram <webignition@gmail.com>
Date: Fri, 10 Sep 2021 11:39:35 +0100
Subject: [PATCH] Output hash of created commit

---
 action.yml                 | 2 ++
 entrypoint.sh              | 2 ++
 tests/git-auto-commit.bats | 7 +++++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/action.yml b/action.yml
index c36ae92..540b900 100644
--- a/action.yml
+++ b/action.yml
@@ -67,6 +67,8 @@ inputs:
 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.
+  commit_hash:
+    description: Full hash of the created commit. Only present if the "changes_detected" output is "true".
 
 runs:
   using: 'node12'
diff --git a/entrypoint.sh b/entrypoint.sh
index 22f01c1..406f03f 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -86,6 +86,8 @@ _local_commit() {
         commit -m "$INPUT_COMMIT_MESSAGE" \
         --author="$INPUT_COMMIT_AUTHOR" \
         ${INPUT_COMMIT_OPTIONS:+"${INPUT_COMMIT_OPTIONS_ARRAY[@]}"};
+
+    echo "::set-output name=commit_hash::$(git rev-parse HEAD)";
 }
 
 _tag_commit() {
diff --git a/tests/git-auto-commit.bats b/tests/git-auto-commit.bats
index b59f2a8..a084c12 100644
--- a/tests/git-auto-commit.bats
+++ b/tests/git-auto-commit.bats
@@ -86,6 +86,7 @@ git_auto_commit() {
 
     assert_line "INPUT_REPOSITORY value: ${INPUT_REPOSITORY}"
     assert_line "::set-output name=changes_detected::true"
+    assert_line -e "::set-output name=commit_hash::[0-9a-f]{40}$"
     assert_line "INPUT_BRANCH value: master"
     assert_line "INPUT_FILE_PATTERN: ."
     assert_line "INPUT_COMMIT_OPTIONS: "
@@ -106,6 +107,7 @@ git_auto_commit() {
 
     assert_line "INPUT_REPOSITORY value: ${INPUT_REPOSITORY}"
     assert_line "::set-output name=changes_detected::true"
+    assert_line -e "::set-output name=commit_hash::[0-9a-f]{40}$"
     assert_line "INPUT_BRANCH value: master"
     assert_line "INPUT_FILE_PATTERN: ."
     assert_line "INPUT_COMMIT_OPTIONS: "
@@ -128,6 +130,7 @@ git_auto_commit() {
 
     assert_line "INPUT_REPOSITORY value: ${INPUT_REPOSITORY}"
     assert_line "::set-output name=changes_detected::false"
+    refute_line -e "::set-output name=commit_hash::[0-9a-f]{40}$"
     assert_line "Working tree clean. Nothing to commit."
 }
 
@@ -138,6 +141,7 @@ git_auto_commit() {
 
     assert_line "INPUT_REPOSITORY value: ${INPUT_REPOSITORY}"
     assert_line "::set-output name=changes_detected::false"
+    refute_line -e "::set-output name=commit_hash::[0-9a-f]{40}$"
     assert_line "Working tree clean. Nothing to commit."
 }
 
@@ -150,8 +154,7 @@ git_auto_commit() {
 
     assert_line "INPUT_REPOSITORY value: ${INPUT_REPOSITORY}"
     assert_line "::set-output name=changes_detected::true"
-
-    assert_line "::set-output name=changes_detected::true"
+    refute_line -e "::set-output name=commit_hash::[0-9a-f]{40}$"
     assert_line "INPUT_BRANCH value: master"
     assert_line "INPUT_FILE_PATTERN: ."
     assert_line "INPUT_COMMIT_OPTIONS: "