From e30de98e6a9e6da13926dab80320c5e35f4dbb24 Mon Sep 17 00:00:00 2001
From: Ivan Schaller <ivan@schaller.sh>
Date: Wed, 16 Aug 2023 12:10:20 +0200
Subject: [PATCH] make entrypoint optional

---
 .gitea/workflows/tests.yml | 5 +++--
 action.yml                 | 5 ++---
 entrypoint.sh              | 6 +++++-
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/.gitea/workflows/tests.yml b/.gitea/workflows/tests.yml
index 79f7c5a..1da473a 100644
--- a/.gitea/workflows/tests.yml
+++ b/.gitea/workflows/tests.yml
@@ -21,7 +21,7 @@ jobs:
           image: debian:11-slim
           volumes: /tmp/:/tmp/
           options: -e TESTENV=${{ gitea.workspace }}
-          run: echo "test"
+          run: env; echo "test"
 
       - name: multi-line options
         uses: https://git.44net.ch/actions/docker-run-action@main
@@ -35,5 +35,6 @@ jobs:
             -e TESTENV=${{ gitea.workspace }}
             -e TESTENV2=TESTENV2
           run: >-
+            env;
             sh -c
-            echo "test
+            echo "test"
diff --git a/action.yml b/action.yml
index e277bda..1cad315 100644
--- a/action.yml
+++ b/action.yml
@@ -28,10 +28,9 @@ inputs:
     description: "Command(s) to run in the container"
     required: false
 
-  shell:
-    description: "Shell to use"
+  entrypoint:
+    description: "Entrypoint for the container"
     required: false
-    default: sh
 
   registry:
     description: "Container registry URL"
diff --git a/entrypoint.sh b/entrypoint.sh
index 93f3ed4..7994188 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -28,6 +28,11 @@ if [ "${INPUT_MOUNT_SOCKET,,}" == "true" ]; then
     RUNTIME_OPTIONS+=(--volume "/var/run/docker.sock:/var/run/docker.sock")
 fi
 
+# set entrypoint
+if [ "${INPUT_ENTRYPOINT,,}" == "true" ]; then
+    RUNTIME_OPTIONS+=(--entrypoint="${INPUT_ENTRYPOINT}")
+fi
+
 # map volumes
 mapfile -t -d ' ' TMP_VOLUMES < <(printf -- '%s' "${INPUT_VOLUMES}")
 for vol in "${TMP_VOLUMES[@]}"; do
@@ -49,7 +54,6 @@ done
 exec docker run \
     --volume "${INPUT_WORKDIR}:${INPUT_WORKDIR}" \
     --workdir "${INPUT_WORKDIR}" \
-    --entrypoint="${INPUT_SHELL}" \
     --env-file "/docker-run-action.env" \
     "${RUNTIME_OPTIONS[@]}" \
     "${CUSTOM_OPTIONS[@]}" \