[gh action] Release on tag push

.github/actions/commit-matches-branch/Dockerfile

@@ -1,10 +1,10 @@
 FROM debian:stable-slim
 
-LABEL "name"="filter"
-LABEL "version"="1.1.0"
+LABEL "name"="commit-matches-branch"
+LABEL "version"="1.0.0"
 
-LABEL "com.github.actions.name"="Filter commit message"
-LABEL "com.github.actions.description"="Stop a workflow if the message of the current commit doesn't match the pattern"
+LABEL "com.github.actions.name"="Commit matches branch"
+LABEL "com.github.actions.description"="Only continue the workflow if the current commit is the last commit of the given branch"
 LABEL "com.github.actions.icon"="filter"
 LABEL "com.github.actions.color"="gray-dark"
 

.github/actions/commit-matches-branch/entrypoint.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -e
+
+current=$(git rev-parse HEAD)
+git checkout $1
+branch=$(git rev-parse HEAD)
+
+if [ "$current" = "$branch" ]; then
+  exit 0
+else
+  exit 78
+fi

.github/actions/create-release-tag/Dockerfile

@@ -1,16 +0,0 @@
-FROM debian:stable-slim
-
-LABEL "name"="create-release-tag"
-LABEL "version"="0.0.1"
-
-LABEL "com.github.actions.name"="Create release tag"
-LABEL "com.github.actions.description"="Creates a release tag equal to the last commit message"
-LABEL "com.github.actions.icon"="tag"
-LABEL "com.github.actions.color"="gray-dark"
-
-ADD entrypoint.sh /action/entrypoint.sh
-
-RUN chmod +x /action/entrypoint.sh
-RUN apt-get update && apt-get install -y --no-install-recommends git
-
-ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/create-release-tag/entrypoint.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-set -e
-
-# GitHub doesn't support running actions on new tags yet: we need to run it on the commit.
-# For this reason, we can't be sure that the tag already exists. We can use the commit
-# message to create the tag. If the tag already exists locally, they won't conflict because
-# they have the same name and are on the same commit.
-
-echo "INFO: Getting release version..."
-tag_name=$(git log --oneline --format=%B -1 $GITHUB_SHA)
-
-echo "INFO: Creating new tag..."
-(git tag $tag_name $GITHUB_SHA) || echo "INFO: Tag already exists"

.github/actions/filter-commit-message/entrypoint.sh

@@ -1,15 +0,0 @@
-#!/bin/sh
-
-set -e
-
-pattern=$1
-message=$(git log --oneline --format=%B -1 $GITHUB_SHA)
-
-if echo "$message" | grep -Pq "$pattern"; then
-  echo "INFO: $message matches $pattern"
-  exit 0
-else
-  echo "INFO: $message does not match $pattern"
-  # 78 is the "neutral" exit status
-  exit 78
-fi

.github/main.workflow

@@ -1,18 +1,23 @@
 workflow "Release" {
-  resolves = [
-    "Trigger GitHub release",
-    "Is version tag",
-  ]
-  on = "release"
+  on = "push"
+  resolves = ["Trigger GitHub release"]
 }
 
 action "Is version tag" {
-  uses = "actions/bin/filter@master"
+  uses = "actions/bin/filter@0dbb077f64d0ec1068a644d25c71b1db66148a24"
   args = "tag v*"
 }
 
+action "Is tag from master" {
+  uses = "./commit-matches-branch/"
+  needs = [
+    "Is version tag",
+  ]
+  args = "master"
+}
+
 action "Trigger GitHub release" {
-  uses = "./.github/actions/trigger-github-release/"
+  uses = "./trigger-github-release/"
   secrets = ["GITHUB_TOKEN"]
   env = {
     COMMIT_AUTHOR_NAME = "Babel Bot"
@@ -20,6 +25,7 @@ action "Trigger GitHub release" {
   }
   needs = [
     "Is version tag",
+    "Is tag from master",
   ]
 }