From 7216888f953c56b012170355a412ad353401f3ca Mon Sep 17 00:00:00 2001
From: peaceiris <30958501+peaceiris@users.noreply.github.com>
Date: Thu, 17 Oct 2019 07:41:16 +0900
Subject: [PATCH] feat: Add INPUT_FORCEORPHAN, close #42

---
 action.yml    | 4 ++++
 entrypoint.sh | 8 +++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/action.yml b/action.yml
index c776467..7b9da8a 100644
--- a/action.yml
+++ b/action.yml
@@ -16,3 +16,7 @@ inputs:
     description: 'If existing files in the publish branch should be not removed before deploying'
     required: false
     default: 'false'
+  forceOrphan:
+    description: 'Keep only the latest commit on a GitHub Pages branch'
+    required: false
+    default: 'false'
diff --git a/entrypoint.sh b/entrypoint.sh
index d72e63d..93a5612 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -77,7 +77,13 @@ fi
 remote_branch="${PUBLISH_BRANCH}"
 
 local_dir="${HOME}/ghpages_${RANDOM}"
-if git clone --depth=1 --single-branch --branch "${remote_branch}" "${remote_repo}" "${local_dir}"; then
+
+if [ -n "${INPUT_FORCEORPHAN}" ]; then
+    print_info "force ophan: ${INPUT_FORCEORPHAN}"
+    cd "${PUBLISH_DIR}"
+    git init
+    git checkout --orphan "${remote_branch}"
+elif git clone --depth=1 --single-branch --branch "${remote_branch}" "${remote_repo}" "${local_dir}"; then
     cd "${local_dir}"
 
     if [[ ${INPUT_KEEPFILES} == "true" ]]; then