From f93a9d944e010534cb38950474a7b8bffe8a641a Mon Sep 17 00:00:00 2001
From: martin <martin@kentik.com>
Date: Mon, 19 Dec 2022 19:25:39 -0800
Subject: [PATCH] Support creation of target branch

---
 action.yml    |  5 +++++
 entrypoint.sh | 23 ++++++++++++++---------
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/action.yml b/action.yml
index 815415f..629038d 100644
--- a/action.yml
+++ b/action.yml
@@ -48,6 +48,10 @@ inputs:
     description: '[Optional] The directory to wipe and replace in the target repository'
     default: ''
     required: false
+  create-target-branch:
+    description: '[Optional] Boolean indicating whether to create target branch if it does not exist'
+    default: 'false'
+    required: false
         
 runs:
   using: docker
@@ -64,6 +68,7 @@ runs:
     - '${{ inputs.target-branch }}'
     - '${{ inputs.commit-message }}'
     - '${{ inputs.target-directory }}'
+    - '${{ inputs.create-target-branch }}'
 branding:
   icon: git-commit
   color: green
diff --git a/entrypoint.sh b/entrypoint.sh
index 83a61f1..3c643c2 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -15,6 +15,7 @@ DESTINATION_REPOSITORY_USERNAME="${8}"
 TARGET_BRANCH="${9}"
 COMMIT_MESSAGE="${10}"
 TARGET_DIRECTORY="${11}"
+CREATE_TARGET_BRANCH="${12}"
 
 if [ -z "$DESTINATION_REPOSITORY_USERNAME" ]
 then
@@ -65,16 +66,20 @@ echo "[+] Cloning destination git repository $DESTINATION_REPOSITORY_NAME"
 git config --global user.email "$USER_EMAIL"
 git config --global user.name "$USER_NAME"
 
-{
-	git clone --single-branch --depth 1 --branch "$TARGET_BRANCH" "$GIT_CMD_REPOSITORY" "$CLONE_DIR"
-} || {
-	echo "::error::Could not clone the destination repository. Command:"
-	echo "::error::git clone --single-branch --branch $TARGET_BRANCH $GIT_CMD_REPOSITORY $CLONE_DIR"
-	echo "::error::(Note that if they exist USER_NAME and API_TOKEN is redacted by GitHub)"
-	echo "::error::Please verify that the target repository exist AND that it contains the destination branch name, and is accesible by the API_TOKEN_GITHUB OR SSH_DEPLOY_KEY"
-	exit 1
+if ! git clone --single-branch --depth 1 --branch "$TARGET_BRANCH" "$GIT_CMD_REPOSITORY" "$CLONE_DIR"; then
+	if ${CREATE_TARGET_BRANCH} && git clone --single-branch --depth 1 "$GIT_CMD_REPOSITORY" "$CLONE_DIR"; then
+		echo "[+] Creating branch ${TARGET_BRANCH}"
+		git branch ${TARGET_BRANCH}
+		git switch ${TARGET_BRANCH}
+	else
+		echo "::error::Could not clone the destination repository. Command:"
+		echo "::error::git clone --single-branch --branch $TARGET_BRANCH $GIT_CMD_REPOSITORY $CLONE_DIR"
+		echo "::error::(Note that if they exist USER_NAME and API_TOKEN is redacted by GitHub)"
+		echo "::error::Please verify that the target repository exist AND that it contains the destination branch name, and is accesible by the API_TOKEN_GITHUB OR SSH_DEPLOY_KEY"
+		exit 1
+	fi
+fi
 
-}
 ls -la "$CLONE_DIR"
 
 TEMP_DIR=$(mktemp -d)