Dockerfile

@@ -1,9 +1,11 @@
 FROM ghcr.io/planetscale/ghcommit:v0.1.48@sha256:9ebf836e2bdbb88e536984312a9083af8c95487ad2b59a1d830672bf4d9053ea AS ghcommit
 
+# hadolint ignore=DL3007
 FROM pscale.dev/wolfi-prod/base:latest AS base
 
 COPY --from=ghcommit /ghcommit /usr/bin/ghcommit
 
+# hadolint ignore=DL3018
 RUN apk add --no-cache \
         bash \
         git

action.yaml

@@ -24,6 +24,12 @@ inputs:
     required: false
     default: "."
 
+outputs:
+  commit-url:
+    description: The URL of the created commit.
+  commit-hash:
+    description: The hash of the created commit.
+
 runs:
   using: "docker"
   image: "Dockerfile"

entrypoint.sh

@@ -74,4 +74,14 @@ ghcommit_args+=("${deletes[@]/#/--delete=}")
 
 [[ -n "${DEBUG:-}" ]] && echo "ghcommit args: '${ghcommit_args[*]}'"
 
-ghcommit "${ghcommit_args[@]}"
+output=$(ghcommit "${ghcommit_args[@]}" 2>&1) || {
+  # Show the output on error. This is needed since the exit immediately flag is set.
+  echo "$output" 1>&2;
+  exit 1
+}
+echo "$output"
+
+commit_url=$(echo "$output" | grep "Success. New commit:" | awk '{print $NF}')
+commit_hash=$(echo "$commit_url" | awk -F '/' '{print $NF}')
+echo "commit-url=$commit_url" >> "$GITHUB_OUTPUT"
+echo "commit-hash=$commit_hash" >> "$GITHUB_OUTPUT"

tests/entrypoint.bats

@@ -8,6 +8,7 @@ load "${BATS_PLUGIN_PATH}/load.bash"
 
 setup() {
   export GITHUB_WORKSPACE=/tmp
+  #export DEBUG=1
 }
 
 @test "parses git status output and generates correct flags for ghcommit" {
@@ -17,6 +18,8 @@ setup() {
   local empty='false'
   local file_pattern='.'
 
+  export GITHUB_OUTPUT="$BATS_TEST_TMPDIR/github-output"
+
   # NOTE: we are passing our hand-crafted fixture through `tr` to convert newlines to nulls since
   # we run `git status -z` which uses null terminators. The newlines are meant to make the file easier
   # to modify and prevent cat from removing the leading space on lines/entries since that is a part
@@ -26,11 +29,13 @@ setup() {
     "status -s --porcelain=v1 -z -- . : cat ./tests/fixtures/git-status.out-1 | tr '\n' '\0'"
 
   stub ghcommit \
-    '-b main -r org/repo -m msg --add=README.md --add=foo.txt --add=new.file --delete=old.file --delete=\""a path with spaces oh joy/file.txt\"" : echo Success'
+    '-b main -r org/repo -m msg --add=README.md --add=foo.txt --add=new.file --delete=old.file --delete=\""a path with spaces oh joy/file.txt\"" : echo Success. New commit: https://localhost/foo'
 
   run ./entrypoint.sh "$commit_message" "$repo" "$branch" "$empty" "$file_pattern"
   assert_success
   assert_output --partial "Success"
+  assert_file_exist "$GITHUB_OUTPUT"
+  assert_file_contains "$GITHUB_OUTPUT" "commit-url=https://localhost/foo"
 }
 
 @test "no changes" {
@@ -56,14 +61,18 @@ setup() {
   local empty='true'
   local file_pattern='.'
 
+  export GITHUB_OUTPUT="$BATS_TEST_TMPDIR/github-output"
+
   stub git \
     "config --global --add safe.directory $GITHUB_WORKSPACE : echo stubbed" \
     "status -s --porcelain=v1 -z -- . : echo"
 
   stub ghcommit \
-    '-b main -r org/repo -m msg --empty : echo Success'
+    '-b main -r org/repo -m msg --empty : echo Success. New commit: https://localhost/foo'
 
   run ./entrypoint.sh "$commit_message" "$repo" "$branch" "$empty" "$file_pattern"
   assert_success
   assert_output --partial "Success"
+  assert_file_exist "$GITHUB_OUTPUT"
+  assert_file_contains "$GITHUB_OUTPUT" "commit-url=https://localhost/foo"
 }