Merge pull request #358 from crazy-max/empty-images

feat: allow images input to be empty to output bare tags

.eslintignore

@@ -0,0 +1,3 @@
+/dist/**
+/coverage/**
+/node_modules/**

.eslintrc.json

@@ -1,11 +1,12 @@
 {
   "env": {
     "node": true,
-    "es2021": true,
+    "es6": true,
-    "jest/globals": true
+    "jest": true
   },
   "extends": [
     "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
     "plugin:@typescript-eslint/recommended",
     "plugin:jest/recommended",
     "plugin:prettier/recommended"

.github/CODEOWNERS

@@ -1 +0,0 @@
-*	@crazy-max

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+# Code of conduct
+
+- [Moby community guidelines](https://github.com/moby/moby/blob/master/CONTRIBUTING.md#moby-community-guidelines)

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,101 @@
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema
+name: Bug Report
+description: Report a bug
+labels:
+  - status/triage
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to report a bug!
+        If this is a security issue please report it to the [Docker Security team](mailto:security@docker.com).
+
+  - type: checkboxes
+    attributes:
+      label: Contributing guidelines
+      description: >
+        Make sure you've read the contributing guidelines before proceeding.
+      options:
+        - label: I've read the [contributing guidelines](https://github.com/docker/metadata-action/blob/master/.github/CONTRIBUTING.md) and wholeheartedly agree
+          required: true
+
+  - type: checkboxes
+    attributes:
+      label: "I've found a bug, and:"
+      description: |
+        Make sure that your request fulfills all of the following requirements.
+        If one requirement cannot be satisfied, explain in detail why.
+      options:
+        - label: The documentation does not mention anything about my problem
+        - label: There are no open or closed issues that are related to my problem
+
+  - type: textarea
+    attributes:
+      label: Description
+      description: >
+        Provide a brief description of the bug in 1-2 sentences.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behaviour
+      description: >
+        Describe precisely what you'd expect to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Actual behaviour
+      description: >
+        Describe precisely what is actually happening.
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Repository URL
+      description: >
+        Enter the URL of the repository where you are experiencing the
+        issue. If your repository is private, provide a link to a minimal
+        repository that reproduces the issue.
+
+  - type: input
+    attributes:
+      label: Workflow run URL
+      description: >
+        Enter the URL of the GitHub Action workflow run if public (e.g.
+        `https://github.com/<user>/<repo>/actions/runs/<id>`)
+
+  - type: textarea
+    attributes:
+      label: YAML workflow
+      description: |
+        Provide the YAML of the workflow that's causing the issue.
+        Make sure to remove any sensitive information.
+      render: yaml
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Workflow logs
+      description: >
+        [Attach](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/attaching-files)
+        the [log file of your workflow run](https://docs.github.com/en/actions/managing-workflow-runs/using-workflow-run-logs#downloading-logs)
+        and make sure to remove any sensitive information.
+
+  - type: textarea
+    attributes:
+      label: BuildKit logs
+      description: >
+        If applicable, provide the [BuildKit container logs](https://docs.docker.com/build/ci/github-actions/configure-builder/#buildkit-container-logs)
+      render: text
+
+  - type: textarea
+    attributes:
+      label: Additional info
+      description: |
+        Provide any additional information that could be useful.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,34 +0,0 @@
----
-name: Bug report
-about: Create a report to help us improve
----
-
-### Behaviour
-
-#### Steps to reproduce this issue
-
-1.
-2.
-3.
-
-#### Expected behaviour
-
-> Tell us what should happen
-
-#### Actual behaviour
-
-> Tell us what happens instead
-
-### Configuration
-
-* Repository URL (if public): 
-* Build URL (if public): 
-
-```yml
-# paste your YAML workflow file here and remove sensitive data
-```
-
-### Logs
-
-> Download the [log file of your build](https://docs.github.com/en/actions/managing-workflow-runs/using-workflow-run-logs#downloading-logs)
-> and [attach it](https://docs.github.com/en/github/managing-your-work-on-github/file-attachments-on-issues-and-pull-requests) to this issue.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,9 @@
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#configuring-the-template-chooser
+blank_issues_enabled: true
+contact_links:
+  - name: Questions and Discussions
+    url: https://github.com/docker/metadata-action/discussions/new
+    about: Use Github Discussions to ask questions and/or open discussion topics.
+  - name: Documentation
+    url: https://docs.docker.com/build/ci/github-actions/
+    about: Read the documentation.

.github/ISSUE_TEMPLATE/feature.yml

@@ -0,0 +1,15 @@
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema
+name: Feature request
+description: Missing functionality? Come tell us about it!
+labels:
+  - kind/enhancement
+  - status/triage
+
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: What is the feature you want to see?
+    validations:
+      required: true

.github/SECURITY.md

@@ -0,0 +1,12 @@
+# Reporting security issues
+
+The project maintainers take security seriously. If you discover a security
+issue, please bring it to their attention right away!
+
+**Please _DO NOT_ file a public issue**, instead send your report privately to
+[security@docker.com](mailto:security@docker.com).
+
+Security reports are greatly appreciated, and we will publicly thank you for it.
+We also like to send gifts—if you'd like Docker swag, make sure to let
+us know. We currently do not offer a paid security bounty program, but are not
+ruling it out in the future.

.github/SUPPORT.md

@@ -1,32 +0,0 @@
-# Support [![](https://isitmaintained.com/badge/resolution/docker/metadata-action.svg)](https://isitmaintained.com/project/docker/metadata-action)
-
-## Reporting an issue
-
-Please do a search in [open issues](https://github.com/docker/metadata-action/issues?utf8=%E2%9C%93&q=) to see if the
-issue or feature request has already been filed.
-
-If you find your issue already exists, make relevant comments and add your
-[reaction](https://github.com/blog/2119-add-reactions-to-pull-requests-issues-and-comments). Use a reaction in place
-of a "+1" comment.
-
-:+1: - upvote
-
-:-1: - downvote
-
-If you cannot find an existing issue that describes your bug or feature, submit an issue using the guidelines below.
-
-## Writing good bug reports and feature requests
-
-File a single issue per problem and feature request.
-
-* Do not enumerate multiple bugs or feature requests in the same issue.
-* Do not add your issue as a comment to an existing issue unless it's for the identical input. Many issues look similar, but have different causes.
-
-The more information you can provide, the more likely someone will be successful reproducing the issue and finding a fix.
-
-You are now ready to [create a new issue](https://github.com/docker/metadata-action/issues/new/choose)!
-
-## Closure policy
-
-* Issues that don't have the information requested above (when applicable) will be closed immediately and the poster directed to the support guidelines.
-* Issues that go a week without a response from original poster are subject to closure at our discretion.

.github/dependabot.yml

@@ -11,6 +11,7 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    versioning-strategy: "increase"
     allow:
       - dependency-type: "production"
     labels:

.github/workflows/ci.yml

@@ -1,8 +1,12 @@
 name: ci
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   schedule:
-    - cron: '0 */4 * * *' # every 4 hours
+    - cron: '0 10 * * *'
   push:
     branches:
       - 'master'
@@ -10,9 +14,6 @@ on:
     tags:
       - 'v*.*.*'
   pull_request:
-    branches:
-      - 'master'
-      - 'releases/v*'
 
 env:
   DOCKER_IMAGE: localhost:5000/name/app
@@ -23,7 +24,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -37,6 +38,9 @@ jobs:
             type=ref,event=tag
             type=ref,event=pr
             type=sha
+      -
+        name: Print envs
+        run: env|sort
 
   tag-schedule:
     runs-on: ubuntu-latest
@@ -51,7 +55,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -81,7 +85,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -109,7 +113,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -134,7 +138,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -151,7 +155,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -166,7 +170,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -185,7 +189,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         uses: ./
@@ -206,7 +210,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
@@ -235,7 +239,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: docker_meta
@@ -254,15 +258,15 @@ jobs:
             type=sha
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
         with:
           driver-opts: network=host
       -
         name: Build and push to local registry
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: ./test
           file: ./test/Dockerfile
@@ -282,14 +286,14 @@ jobs:
       -
         name: Dump context
         if: always()
-        uses: crazy-max/ghaction-dump-context@v1
+        uses: crazy-max/ghaction-dump-context@v2
 
   bake:
     runs-on: ubuntu-latest
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: docker_meta
@@ -309,17 +313,18 @@ jobs:
             type=sha
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       -
         name: Build
-        uses: docker/bake-action@v2
+        uses: docker/bake-action@v4
         with:
           files: |
             ./test/docker-bake.hcl
-            ${{ steps.docker_meta.outputs.bake-file }}
+            ${{ steps.docker_meta.outputs.bake-file-tags }}
+            ${{ steps.docker_meta.outputs.bake-file-labels }}
           targets: |
             release
 
@@ -334,7 +339,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
@@ -346,7 +351,99 @@ jobs:
           sep-tags: ${{ matrix.sep }}
       -
         name: Tags
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           script: |
             console.log(`${{ steps.meta.outputs.tags }}`);
+
+  output-env:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Docker meta
+        id: meta
+        uses: ./
+        with:
+          images: |
+            ${{ env.DOCKER_IMAGE }}
+            ghcr.io/name/app
+          labels: |
+            maintainer=CrazyMax
+      -
+        name: Build
+        uses: docker/build-push-action@v5
+        with:
+          context: ./test
+          file: ./test/output.Dockerfile
+          build-args: |
+            DOCKER_METADATA_OUTPUT_VERSION
+            DOCKER_METADATA_OUTPUT_TAGS
+            DOCKER_METADATA_OUTPUT_LABELS
+            DOCKER_METADATA_OUTPUT_JSON
+
+  bake-annotations:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: ./
+        with:
+          images: |
+            ${{ env.DOCKER_IMAGE }}
+            ghcr.io/name/app
+          tags: |
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=tag
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: v0.12.0-rc1
+      -
+        name: Build
+        uses: docker/bake-action@v4
+        with:
+          files: |
+            ./test/docker-bake.hcl
+            ${{ steps.docker_meta.outputs.bake-file-tags }}
+            ${{ steps.docker_meta.outputs.bake-file-annotations }}
+          targets: |
+            release
+
+  no-images:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Docker meta
+        uses: ./
+        with:
+          tags: |
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=tag
+            type=ref,event=pr
+            type=sha
+      -
+        name: Print envs
+        run: env|sort

.github/workflows/test.yml

@@ -1,14 +1,15 @@
 name: test
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches:
       - 'master'
       - 'releases/v*'
   pull_request:
-    branches:
-      - 'master'
-      - 'releases/v*'
 
 jobs:
   test:
@@ -16,15 +17,10 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
-      -
-        name: Validate
-        uses: docker/bake-action@v2
-        with:
-          targets: validate
       -
         name: Test
-        uses: docker/bake-action@v2
+        uses: docker/bake-action@v4
         with:
           targets: test
       -

.github/workflows/validate.yml

@@ -0,0 +1,45 @@
+name: validate
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'releases/v*'
+  pull_request:
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      targets: ${{ steps.targets.outputs.matrix }}
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Targets matrix
+        id: targets
+        run: |
+          echo "matrix=$(docker buildx bake validate --print | jq -cr '.group.validate.targets')" >> $GITHUB_OUTPUT
+
+  validate:
+    runs-on: ubuntu-latest
+    needs:
+      - prepare
+    strategy:
+      fail-fast: false
+      matrix:
+        target: ${{ fromJson(needs.prepare.outputs.targets) }}
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Validate
+        uses: docker/bake-action@v4
+        with:
+          targets: ${{ matrix.target }}

README.md

@@ -1,6 +1,7 @@
 [![GitHub release](https://img.shields.io/github/release/docker/metadata-action.svg?style=flat-square)](https://github.com/docker/metadata-action/releases/latest)
 [![GitHub marketplace](https://img.shields.io/badge/marketplace-docker--metadata--action-blue?logo=github&style=flat-square)](https://github.com/marketplace/actions/docker-metadata-action)
-[![Test workflow](https://img.shields.io/github/workflow/status/docker/metadata-action/test?label=test&logo=github&style=flat-square)](https://github.com/docker/metadata-action/actions?workflow=test)
+[![CI workflow](https://img.shields.io/github/actions/workflow/status/docker/metadata-action/ci.yml?branch=master&label=ci&logo=github&style=flat-square)](https://github.com/docker/metadata-action/actions?workflow=ci)
+[![Test workflow](https://img.shields.io/github/actions/workflow/status/docker/metadata-action/test.yml?branch=master&label=test&logo=github&style=flat-square)](https://github.com/docker/metadata-action/actions?workflow=test)
 [![Codecov](https://img.shields.io/codecov/c/github/docker/metadata-action?logo=codecov&style=flat-square)](https://codecov.io/gh/docker/metadata-action)
 
 ## About
@@ -20,6 +21,8 @@ ___
 * [Customizing](#customizing)
   * [inputs](#inputs)
   * [outputs](#outputs)
+  * [environment variables](#environment-variables)
+* [`context` input](#context-input)
 * [`images` input](#images-input)
 * [`flavor` input](#flavor-input)
 * [`tags` input](#tags-input)
@@ -41,10 +44,11 @@ ___
     * [`{{sha}}`](#sha)
     * [`{{base_ref}}`](#base_ref)
     * [`{{is_default_branch}}`](#is_default_branch)
-    * [`{{date '<format>'}}`](#date-format)
+    * [`{{date '<format>' tz='<timezone>'}}`](#date-format-tztimezone)
   * [Major version zero](#major-version-zero)
   * [JSON output object](#json-output-object)
   * [Overwrite labels](#overwrite-labels)
+  * [Annotations](#annotations)
 * [Contributing](#contributing)
 
 ## Usage
@@ -71,23 +75,23 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: name/app
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -125,11 +129,11 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             name/app
@@ -141,13 +145,13 @@ jobs:
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -203,11 +207,11 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             name/app
@@ -219,7 +223,7 @@ jobs:
             type=sha
       -
         name: Build
-        uses: docker/bake-action@v2
+        uses: docker/bake-action@v3
         with:
           files: |
             ./docker-bake.hcl
@@ -227,8 +231,8 @@ jobs:
           targets: build
 ```
 
-Content of `${{ steps.meta.outputs.bake-file }}` file will look like this with
+Content of `${{ steps.meta.outputs.bake-file }}` file, combining tags and
-`refs/tags/v1.2.3` ref:
+labels, will look like this with `refs/tags/v1.2.3` ref:
 
 ```json
 {
@@ -259,11 +263,27 @@ Content of `${{ steps.meta.outputs.bake-file }}` file will look like this with
 }
 ```
 
+You can also use the `bake-file-tags` and `bake-file-labels` outputs if you
+just want to use tags and/or labels respectively. The following example is
+similar to the previous one:
+
+```yaml
+      -
+        name: Build
+        uses: docker/bake-action@v3
+        with:
+          files: |
+            ./docker-bake.hcl
+            ${{ steps.meta.outputs.bake-file-tags }}
+            ${{ steps.meta.outputs.bake-file-labels }}
+          targets: build
+```
+
 ## Customizing
 
 ### inputs
 
-Following inputs can be used as `step.with` keys
+The following inputs can be used as `step.with` keys:
 
 > `List` type is a newline-delimited string
 > ```yaml
@@ -273,27 +293,72 @@ Following inputs can be used as `step.with` keys
 >   org.opencontainers.image.vendor=MyCompany
 > ```
 
-| Name                | Type   | Description                                              |
+| Name          | Type   | Description                                                                   |
-|---------------------|--------|----------------------------------------------------------|
+|---------------|--------|-------------------------------------------------------------------------------|
-| `images`            | List   | List of Docker images to use as base name for tags       |
+| `context`     | String | Where to get context data. Allowed options are: `workflow` (default), `git`.  |
-| `tags`              | List   | List of [tags](#tags-input) as key-value pair attributes |
+| `images`      | List   | List of Docker images to use as base name for tags                            |
-| `flavor`            | List   | [Flavor](#flavor-input) to apply                         |
+| `tags`        | List   | List of [tags](#tags-input) as key-value pair attributes                      |
-| `labels`            | List   | List of custom labels                                    |
+| `flavor`      | List   | [Flavor](#flavor-input) to apply                                              |
-| `sep-tags`          | String | Separator to use for tags output (default `\n`)          |
+| `labels`      | List   | List of custom labels                                                         |
-| `sep-labels`        | String | Separator to use for labels output (default `\n`)        |
+| `sep-tags`    | String | Separator to use for tags output (default `\n`)                               |
-| `bake-target`       | String | Bake target name (default `docker-metadata-action`)      |
+| `sep-labels`  | String | Separator to use for labels output (default `\n`)                             |
+| `bake-target` | String | Bake target name (default `docker-metadata-action`)                           |
 
 ### outputs
 
-Following outputs are available
+The following outputs are available:
 
-| Name          | Type    | Description                                                                                |
+| Name                    | Type   | Description                                                                                                                                                     |
-|---------------|---------|--------------------------------------------------------------------------------------------|
+|-------------------------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `version`     | String  | Docker image version                                                                       |
+| `version`               | String | Docker image version                                                                                                                                            |
-| `tags`        | String  | Docker tags                                                                                |
+| `tags`                  | String | Docker tags                                                                                                                                                     |
-| `labels`      | String  | Docker labels                                                                              |
+| `labels`                | String | Docker labels                                                                                                                                                   |
-| `json`        | String  | JSON output of tags and labels                                                             |
+| `annotations`           | String | [Annotations](https://github.com/moby/buildkit/blob/master/docs/annotations.md)                                                                                 |
-| `bake-file`   | File    | [Bake file definition](https://docs.docker.com/build/customize/bake/file-definition/) path |
+| `json`                  | String | JSON output of tags and labels                                                                                                                                  |
+| `bake-file-tags`        | File   | [Bake file definition](https://docs.docker.com/build/bake/reference/) path with tags                                                                            |
+| `bake-file-labels`      | File   | [Bake file definition](https://docs.docker.com/build/bake/reference/) path with labels                                                                          |
+| `bake-file-annotations` | File   | [Bake file definition](https://docs.docker.com/build/bake/reference/) path with [annotations](https://github.com/moby/buildkit/blob/master/docs/annotations.md) |
+
+Alternatively, each output is also exported as an environment variable:
+
+* `DOCKER_METADATA_OUTPUT_VERSION`
+* `DOCKER_METADATA_OUTPUT_TAGS`
+* `DOCKER_METADATA_OUTPUT_LABELS`
+* `DOCKER_METADATA_OUTPUT_ANNOTATIONS`
+* `DOCKER_METADATA_OUTPUT_JSON`
+* `DOCKER_METADATA_OUTPUT_BAKE_FILE_TAGS`
+* `DOCKER_METADATA_OUTPUT_BAKE_FILE_LABELS`
+* `DOCKER_METADATA_OUTPUT_BAKE_FILE_ANNOTATIONS`
+
+So it can be used with our [Docker Build Push action](https://github.com/docker/build-push-action/):
+
+```yaml
+- uses: docker/build-push-action@v5
+  with:
+    build-args: |
+      DOCKER_METADATA_OUTPUT_JSON
+```
+
+### environment variables
+
+| Name                                 | Type   | Description                                                                                                |
+|--------------------------------------|--------|------------------------------------------------------------------------------------------------------------|
+| `DOCKER_METADATA_PR_HEAD_SHA`        | Bool   | If `true`, set associated head SHA instead of commit SHA that triggered the workflow on pull request event |
+| `DOCKER_METADATA_ANNOTATIONS_LEVELS` | String | Comma separated list of annotations levels to set for annotations output separated (default `manifest`)    |
+
+## `context` input
+
+`context` defines where to get context metadata:
+
+```yaml
+# default
+context: workflow
+# or
+context: git
+```
+
+* `workflow`: Get context metadata from the workflow (GitHub context). See https://docs.github.com/en/actions/learn-github-actions/contexts#github-context
+* `git`: Get context metadata from the workflow and overrides some of them with current Git context, such as `ref` and `sha`.
 
 ## `images` input
 
@@ -318,6 +383,8 @@ images: |
 * `name=<string>` image base name
 * `enable=<true|false>` enable this entry (default `true`)
 
+If `images` is empty, tags will be generated without base name.
+
 ## `flavor` input
 
 `flavor` defines a global behavior for [`tags`](#tags-input):
@@ -391,6 +458,8 @@ tags: |
   type=schedule,pattern=nightly
   # handlebars
   type=schedule,pattern={{date 'YYYYMMDD'}}
+  # handlebars with timezone
+  type=schedule,pattern={{date 'YYYYMMDD-hhmmss' tz='Asia/Tokyo'}}
 ```
 
 Will be used on [schedule event](https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule).
@@ -398,12 +467,14 @@ Will be used on [schedule event](https://docs.github.com/en/actions/using-workfl
 `pattern` is a specially crafted attribute to support [Handlebars' template](https://handlebarsjs.com/guide/)
 with the following expressions:
 
-* `date 'format'` ; render date by its [moment format](https://momentjs.com/docs/#/displaying/format/)
+* `date 'format' tz='Timezone'` ; render date by its [moment format](https://momentjs.com/docs/#/displaying/format/).
+  Default `tz` is UTC.
 
-| Pattern                  | Output               |
+| Pattern                                      | Output            |
-|--------------------------|----------------------|
+|----------------------------------------------|-------------------|
-| `nightly`                | `nightly`            |
+| `nightly`                                    | `nightly`         |
-| `{{date 'YYYYMMDD'}}`    | `20210326`           |
+| `{{date 'YYYYMMDD'}}`                        | `20200110`        |
+| `{{date 'YYYYMMDD-HHmmss' tz='Asia/Tokyo'}}` | `20200110-093000` |
 
 Extended attributes and default values:
 
@@ -768,14 +839,16 @@ workflow run. Will be empty for a branch reference:
 Returns `true` if the branch that triggered the workflow run is the default
 one, otherwise `false`.
 
-#### `{{date '<format>'}}`
+#### `{{date '<format>' tz='<timezone>'}}`
 
 Returns the current date rendered by its [moment format](https://momentjs.com/docs/#/displaying/format/).
+Default `tz` is UTC.
 
-| Expression                                 | Output example                          |
+| Expression                                   | Output example                          |
-|--------------------------------------------|-----------------------------------------|
+|----------------------------------------------|-----------------------------------------|
-| `{{date 'YYYYMMDD'}}`                      | `20200110`                              |
+| `{{date 'YYYYMMDD'}}`                        | `20200110`                              |
-| `{{date 'dddd, MMMM Do YYYY, h:mm:ss a'}}` | `Friday, January 10th 2020, 3:25:50 pm` |
+| `{{date 'dddd, MMMM Do YYYY, h:mm:ss a'}}`   | `Friday, January 10th 2020, 3:25:50 pm` |
+| `{{date 'YYYYMMDD-HHmmss' tz='Asia/Tokyo'}}` | `20200110-093000`                       |
 
 ### Major version zero
 
@@ -804,13 +877,13 @@ that you can reuse them further in your workflow using the [`fromJSON` function]
 ```yaml
       -
         name: Docker meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         id: meta
         with:
           images: name/app
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -829,7 +902,7 @@ labels generated are not suitable, you can overwrite them like this:
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: name/app
           labels: |
@@ -839,6 +912,70 @@ labels generated are not suitable, you can overwrite them like this:
             org.opencontainers.image.vendor=MyCompany
 ```
 
+### Annotations
+
+Since Buildx 0.12, it is possible to set annotations to your image through the
+`--annotation` flag.
+
+With the [`build-push-action`](https://github.com/docker/build-push-action/),
+you can set the `annotations` input with the value of the `annotations` output
+of the `metadata-action`:
+
+```yaml
+      -
+        name: Docker meta
+        uses: docker/metadata-action@v5
+        with:
+          images: name/app
+      -
+        name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          tags: ${{ steps.meta.outputs.tags }}
+          annotations: ${{ steps.meta.outputs.annotations }}
+```
+
+The same can be done with the [`bake-action`](https://github.com/docker/bake-action/):
+
+```yaml
+      -
+        name: Docker meta
+        uses: docker/metadata-action@v5
+        with:
+          images: name/app
+      -
+        name: Build
+        uses: docker/bake-action@v3
+        with:
+          files: |
+            ./docker-bake.hcl
+            ${{ steps.meta.outputs.bake-file-tags }}
+            ${{ steps.meta.outputs.bake-file-annotations }}
+          targets: build
+```
+
+If you want to set specific level(s) for your annotations, you can use the
+[`DOCKER_METADATA_ANNOTATIONS_LEVELS` environment variable](#environment-variables)
+with a comma separated list of levels (defaults to `manifest`):
+
+```yaml
+      -
+        name: Docker meta
+        uses: docker/metadata-action@v5
+        with:
+          images: name/app
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
+      -
+        name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          tags: ${{ steps.meta.outputs.tags }}
+          annotations: ${{ steps.meta.outputs.annotations }}
+```
+
+More information about annotations in the [BuildKit documentation](https://github.com/moby/buildkit/blob/master/docs/annotations.md).
+
 ## Contributing
 
 Want to contribute? Awesome! You can find information about contributing to

UPGRADE.md

@@ -3,7 +3,7 @@
 ## v2 to v3
 
 * Repository has been moved to docker org. Replace `crazy-max/ghaction-docker-meta@v2`
-  with `docker/metadata-action@v4`
+  with `docker/metadata-action@v5`
 * The default bake target has been changed: `ghaction-docker-meta` > `docker-metadata-action`
 
 ## v1 to v2
@@ -133,7 +133,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
@@ -143,13 +143,13 @@ jobs:
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -177,23 +177,23 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: name/app
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -223,7 +223,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
@@ -236,13 +236,13 @@ jobs:
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -270,11 +270,11 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: name/app
           tags: |
@@ -285,13 +285,13 @@ jobs:
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}

__mocks__/@actions/github.ts

@@ -0,0 +1,207 @@
+import {jest} from '@jest/globals';
+
+export const context = {
+  repo: {
+    owner: 'docker',
+    repo: 'actions-toolkit'
+  },
+  ref: 'refs/heads/master',
+  runId: 123,
+  payload: {
+    after: '860c1904a1ce19322e91ac35af1ab07466440c37',
+    base_ref: null,
+    before: '5f3331d7f7044c18ca9f12c77d961c4d7cf3276a',
+    commits: [
+      {
+        author: {
+          email: 'crazy-max@users.noreply.github.com',
+          name: 'CrazyMax',
+          username: 'crazy-max'
+        },
+        committer: {
+          email: 'crazy-max@users.noreply.github.com',
+          name: 'CrazyMax',
+          username: 'crazy-max'
+        },
+        distinct: true,
+        id: '860c1904a1ce19322e91ac35af1ab07466440c37',
+        message: 'hello dev',
+        timestamp: '2022-04-19T11:27:24+02:00',
+        tree_id: 'd2c60af597e863787d2d27f569e30495b0b92820',
+        url: 'https://github.com/docker/test-docker-action/commit/860c1904a1ce19322e91ac35af1ab07466440c37'
+      }
+    ],
+    compare: 'https://github.com/docker/test-docker-action/compare/5f3331d7f704...860c1904a1ce',
+    created: false,
+    deleted: false,
+    forced: false,
+    head_commit: {
+      author: {
+        email: 'crazy-max@users.noreply.github.com',
+        name: 'CrazyMax',
+        username: 'crazy-max'
+      },
+      committer: {
+        email: 'crazy-max@users.noreply.github.com',
+        name: 'CrazyMax',
+        username: 'crazy-max'
+      },
+      distinct: true,
+      id: '860c1904a1ce19322e91ac35af1ab07466440c37',
+      message: 'hello dev',
+      timestamp: '2022-04-19T11:27:24+02:00',
+      tree_id: 'd2c60af597e863787d2d27f569e30495b0b92820',
+      url: 'https://github.com/docker/test-docker-action/commit/860c1904a1ce19322e91ac35af1ab07466440c37'
+    },
+    organization: {
+      avatar_url: 'https://avatars.githubusercontent.com/u/5429470?v=4',
+      description: 'Docker helps developers bring their ideas to life by conquering the complexity of app development.',
+      events_url: 'https://api.github.com/orgs/docker/events',
+      hooks_url: 'https://api.github.com/orgs/docker/hooks',
+      id: 5429470,
+      issues_url: 'https://api.github.com/orgs/docker/issues',
+      login: 'docker',
+      members_url: 'https://api.github.com/orgs/docker/members{/member}',
+      node_id: 'MDEyOk9yZ2FuaXphdGlvbjU0Mjk0NzA=',
+      public_members_url: 'https://api.github.com/orgs/docker/public_members{/member}',
+      repos_url: 'https://api.github.com/orgs/docker/repos',
+      url: 'https://api.github.com/orgs/docker'
+    },
+    pusher: {
+      email: 'github@crazymax.dev',
+      name: 'crazy-max'
+    },
+    ref: 'refs/heads/dev',
+    repository: {
+      allow_forking: true,
+      archive_url: 'https://api.github.com/repos/docker/test-docker-action/{archive_format}{/ref}',
+      archived: false,
+      assignees_url: 'https://api.github.com/repos/docker/test-docker-action/assignees{/user}',
+      blobs_url: 'https://api.github.com/repos/docker/test-docker-action/git/blobs{/sha}',
+      branches_url: 'https://api.github.com/repos/docker/test-docker-action/branches{/branch}',
+      clone_url: 'https://github.com/docker/test-docker-action.git',
+      collaborators_url: 'https://api.github.com/repos/docker/test-docker-action/collaborators{/collaborator}',
+      comments_url: 'https://api.github.com/repos/docker/test-docker-action/comments{/number}',
+      commits_url: 'https://api.github.com/repos/docker/test-docker-action/commits{/sha}',
+      compare_url: 'https://api.github.com/repos/docker/test-docker-action/compare/{base}...{head}',
+      contents_url: 'https://api.github.com/repos/docker/test-docker-action/contents/{+path}',
+      contributors_url: 'https://api.github.com/repos/docker/test-docker-action/contributors',
+      created_at: 1596792180,
+      default_branch: 'master',
+      deployments_url: 'https://api.github.com/repos/docker/test-docker-action/deployments',
+      description: 'Test "Docker" Actions',
+      disabled: false,
+      downloads_url: 'https://api.github.com/repos/docker/test-docker-action/downloads',
+      events_url: 'https://api.github.com/repos/docker/test-docker-action/events',
+      fork: false,
+      forks: 1,
+      forks_count: 1,
+      forks_url: 'https://api.github.com/repos/docker/test-docker-action/forks',
+      full_name: 'docker/test-docker-action',
+      git_commits_url: 'https://api.github.com/repos/docker/test-docker-action/git/commits{/sha}',
+      git_refs_url: 'https://api.github.com/repos/docker/test-docker-action/git/refs{/sha}',
+      git_tags_url: 'https://api.github.com/repos/docker/test-docker-action/git/tags{/sha}',
+      git_url: 'git://github.com/docker/test-docker-action.git',
+      has_downloads: true,
+      has_issues: true,
+      has_pages: false,
+      has_projects: true,
+      has_wiki: true,
+      homepage: '',
+      hooks_url: 'https://api.github.com/repos/docker/test-docker-action/hooks',
+      html_url: 'https://github.com/docker/test-docker-action',
+      id: 285789493,
+      is_template: false,
+      issue_comment_url: 'https://api.github.com/repos/docker/test-docker-action/issues/comments{/number}',
+      issue_events_url: 'https://api.github.com/repos/docker/test-docker-action/issues/events{/number}',
+      issues_url: 'https://api.github.com/repos/docker/test-docker-action/issues{/number}',
+      keys_url: 'https://api.github.com/repos/docker/test-docker-action/keys{/key_id}',
+      labels_url: 'https://api.github.com/repos/docker/test-docker-action/labels{/name}',
+      language: 'JavaScript',
+      languages_url: 'https://api.github.com/repos/docker/test-docker-action/languages',
+      license: {
+        key: 'mit',
+        name: 'MIT License',
+        node_id: 'MDc6TGljZW5zZTEz',
+        spdx_id: 'MIT',
+        url: 'https://api.github.com/licenses/mit'
+      },
+      master_branch: 'master',
+      merges_url: 'https://api.github.com/repos/docker/test-docker-action/merges',
+      milestones_url: 'https://api.github.com/repos/docker/test-docker-action/milestones{/number}',
+      mirror_url: null,
+      name: 'test-docker-action',
+      node_id: 'MDEwOlJlcG9zaXRvcnkyODU3ODk0OTM=',
+      notifications_url: 'https://api.github.com/repos/docker/test-docker-action/notifications{?since,all,participating}',
+      open_issues: 6,
+      open_issues_count: 6,
+      organization: 'docker',
+      owner: {
+        avatar_url: 'https://avatars.githubusercontent.com/u/5429470?v=4',
+        email: 'info@docker.com',
+        events_url: 'https://api.github.com/users/docker/events{/privacy}',
+        followers_url: 'https://api.github.com/users/docker/followers',
+        following_url: 'https://api.github.com/users/docker/following{/other_user}',
+        gists_url: 'https://api.github.com/users/docker/gists{/gist_id}',
+        gravatar_id: '',
+        html_url: 'https://github.com/docker',
+        id: 5429470,
+        login: 'docker',
+        name: 'docker',
+        node_id: 'MDEyOk9yZ2FuaXphdGlvbjU0Mjk0NzA=',
+        organizations_url: 'https://api.github.com/users/docker/orgs',
+        received_events_url: 'https://api.github.com/users/docker/received_events',
+        repos_url: 'https://api.github.com/users/docker/repos',
+        site_admin: false,
+        starred_url: 'https://api.github.com/users/docker/starred{/owner}{/repo}',
+        subscriptions_url: 'https://api.github.com/users/docker/subscriptions',
+        type: 'Organization',
+        url: 'https://api.github.com/users/docker'
+      },
+      private: true,
+      pulls_url: 'https://api.github.com/repos/docker/test-docker-action/pulls{/number}',
+      pushed_at: 1650360446,
+      releases_url: 'https://api.github.com/repos/docker/test-docker-action/releases{/id}',
+      size: 796,
+      ssh_url: 'git@github.com:docker/test-docker-action.git',
+      stargazers: 0,
+      stargazers_count: 0,
+      stargazers_url: 'https://api.github.com/repos/docker/test-docker-action/stargazers',
+      statuses_url: 'https://api.github.com/repos/docker/test-docker-action/statuses/{sha}',
+      subscribers_url: 'https://api.github.com/repos/docker/test-docker-action/subscribers',
+      subscription_url: 'https://api.github.com/repos/docker/test-docker-action/subscription',
+      svn_url: 'https://github.com/docker/test-docker-action',
+      tags_url: 'https://api.github.com/repos/docker/test-docker-action/tags',
+      teams_url: 'https://api.github.com/repos/docker/test-docker-action/teams',
+      topics: [],
+      trees_url: 'https://api.github.com/repos/docker/test-docker-action/git/trees{/sha}',
+      updated_at: '2022-04-19T09:05:09Z',
+      url: 'https://github.com/docker/test-docker-action',
+      visibility: 'private',
+      watchers: 0,
+      watchers_count: 0
+    },
+    sender: {
+      avatar_url: 'https://avatars.githubusercontent.com/u/1951866?v=4',
+      events_url: 'https://api.github.com/users/crazy-max/events{/privacy}',
+      followers_url: 'https://api.github.com/users/crazy-max/followers',
+      following_url: 'https://api.github.com/users/crazy-max/following{/other_user}',
+      gists_url: 'https://api.github.com/users/crazy-max/gists{/gist_id}',
+      gravatar_id: '',
+      html_url: 'https://github.com/crazy-max',
+      id: 1951866,
+      login: 'crazy-max',
+      node_id: 'MDQ6VXNlcjE5NTE4NjY=',
+      organizations_url: 'https://api.github.com/users/crazy-max/orgs',
+      received_events_url: 'https://api.github.com/users/crazy-max/received_events',
+      repos_url: 'https://api.github.com/users/crazy-max/repos',
+      site_admin: false,
+      starred_url: 'https://api.github.com/users/crazy-max/starred{/owner}{/repo}',
+      subscriptions_url: 'https://api.github.com/users/crazy-max/subscriptions',
+      type: 'User',
+      url: 'https://api.github.com/users/crazy-max'
+    }
+  }
+};
+
+export const getOctokit = jest.fn();

__tests__/context.test.ts

@@ -1,167 +1,126 @@
-import {describe, expect, it, jest} from '@jest/globals';
+import {afterEach, beforeEach, describe, expect, test, it, jest} from '@jest/globals';
+import * as dotenv from 'dotenv';
 import * as fs from 'fs';
 import * as path from 'path';
+import {Context} from '@actions/github/lib/context';
+import {Git} from '@docker/actions-toolkit/lib/git';
+import {GitHub} from '@docker/actions-toolkit/lib/github';
 
-import * as context from '../src/context';
+import {ContextSource, getContext, getInputs, Inputs} from '../src/context';
 
-jest.spyOn(context, 'tmpDir').mockImplementation((): string => {
+beforeEach(() => {
-  const tmpDir = path.join('/tmp/.docker-metadata-action-jest').split(path.sep).join(path.posix.sep);
+  jest.clearAllMocks();
-  if (!fs.existsSync(tmpDir)) {
+  jest.spyOn(GitHub, 'context', 'get').mockImplementation((): Context => {
-    fs.mkdirSync(tmpDir, {recursive: true});
+    return new Context();
-  }
-  return tmpDir;
-});
-
-describe('getInputList', () => {
-  it('single line correctly', async () => {
-    await setInput('foo', 'bar');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar']);
-  });
-
-  it('multiline correctly', async () => {
-    setInput('foo', 'bar\nbaz');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz']);
-  });
-
-  it('empty lines correctly', async () => {
-    setInput('foo', 'bar\n\nbaz');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz']);
-  });
-
-  it('comment correctly', async () => {
-    setInput('foo', 'bar\n#com\n"#taken"\nhello#comment\nbaz');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', '#taken', 'hello', 'baz']);
-  });
-
-  it('comma correctly', async () => {
-    setInput('foo', 'bar,baz');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz']);
-  });
-
-  it('empty result correctly', async () => {
-    setInput('foo', 'bar,baz,');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz']);
-  });
-
-  it('different new lines correctly', async () => {
-    setInput('foo', 'bar\r\nbaz');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz']);
-  });
-
-  it('different new lines and comma correctly', async () => {
-    setInput('foo', 'bar\r\nbaz,bat');
-    const res = context.getInputList('foo');
-    expect(res).toEqual(['bar', 'baz', 'bat']);
-  });
-
-  it('multiline and ignoring comma correctly', async () => {
-    setInput('cache-from', 'user/app:cache\ntype=local,src=path/to/dir');
-    const res = context.getInputList('cache-from', true);
-    expect(res).toEqual(['user/app:cache', 'type=local,src=path/to/dir']);
-  });
-
-  it('different new lines and ignoring comma correctly', async () => {
-    setInput('cache-from', 'user/app:cache\r\ntype=local,src=path/to/dir');
-    const res = context.getInputList('cache-from', true);
-    expect(res).toEqual(['user/app:cache', 'type=local,src=path/to/dir']);
-  });
-
-  it('multiline values', async () => {
-    setInput(
-      'secrets',
-      `GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789
-"MYSECRET=aaaaaaaa
-bbbbbbb
-ccccccccc"
-FOO=bar`
-    );
-    const res = context.getInputList('secrets', true);
-    expect(res).toEqual([
-      'GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789',
-      `MYSECRET=aaaaaaaa
-bbbbbbb
-ccccccccc`,
-      'FOO=bar'
-    ]);
-  });
-
-  it('multiline values with empty lines', async () => {
-    setInput(
-      'secrets',
-      `GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789
-"MYSECRET=aaaaaaaa
-bbbbbbb
-ccccccccc"
-FOO=bar
-"EMPTYLINE=aaaa
-
-bbbb
-ccc"`
-    );
-    const res = context.getInputList('secrets', true);
-    expect(res).toEqual([
-      'GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789',
-      `MYSECRET=aaaaaaaa
-bbbbbbb
-ccccccccc`,
-      'FOO=bar',
-      `EMPTYLINE=aaaa
-
-bbbb
-ccc`
-    ]);
-  });
-
-  it('multiline values without quotes', async () => {
-    setInput(
-      'secrets',
-      `GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789
-MYSECRET=aaaaaaaa
-bbbbbbb
-ccccccccc
-FOO=bar`
-    );
-    const res = context.getInputList('secrets', true);
-    expect(res).toEqual(['GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789', 'MYSECRET=aaaaaaaa', 'bbbbbbb', 'ccccccccc', 'FOO=bar']);
-  });
-
-  it('multiline values escape quotes', async () => {
-    setInput(
-      'secrets',
-      `GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789
-"MYSECRET=aaaaaaaa
-bbbb""bbb
-ccccccccc"
-FOO=bar`
-    );
-    const res = context.getInputList('secrets', true);
-    expect(res).toEqual([
-      'GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789',
-      `MYSECRET=aaaaaaaa
-bbbb"bbb
-ccccccccc`,
-      'FOO=bar'
-    ]);
   });
 });
 
-describe('asyncForEach', () => {
+describe('getInputs', () => {
-  it('executes async tasks sequentially', async () => {
+  beforeEach(() => {
-    const testValues = [1, 2, 3, 4, 5];
+    process.env = Object.keys(process.env).reduce((object, key) => {
-    const results: number[] = [];
+      if (!key.startsWith('INPUT_')) {
+        object[key] = process.env[key];
+      }
+      return object;
+    }, {});
+  });
 
-    await context.asyncForEach(testValues, async value => {
+  // prettier-ignore
-      results.push(value);
+  test.each([
+    [
+      0,
+      new Map<string, string>([
+        ['images', 'moby/buildkit\nghcr.io/moby/mbuildkit'],
+      ]),
+      {
+        context: ContextSource.workflow,
+        bakeTarget: 'docker-metadata-action',
+        flavor: [],
+        githubToken: '',
+        images: ['moby/buildkit', 'ghcr.io/moby/mbuildkit'],
+        labels: [],
+        sepLabels: '\n',
+        sepTags: '\n',
+        tags: [],
+      } as Inputs
+    ],
+    [
+      1,
+      new Map<string, string>([
+        ['bake-target', 'metadata'],
+        ['images', 'moby/buildkit'],
+        ['sep-labels', ','],
+        ['sep-tags', ','],
+      ]),
+      {
+        context: ContextSource.workflow,
+        bakeTarget: 'metadata',
+        flavor: [],
+        githubToken: '',
+        images: ['moby/buildkit'],
+        labels: [],
+        sepLabels: ',',
+        sepTags: ',',
+        tags: [],
+      } as Inputs
+    ],
+    [
+      2,
+      new Map<string, string>([
+        ['images', 'moby/buildkit\n#comment\nghcr.io/moby/mbuildkit'],
+      ]),
+      {
+        context: ContextSource.workflow,
+        bakeTarget: 'docker-metadata-action',
+        flavor: [],
+        githubToken: '',
+        images: ['moby/buildkit', 'ghcr.io/moby/mbuildkit'],
+        labels: [],
+        sepLabels: '\n',
+        sepTags: '\n',
+        tags: [],
+      } as Inputs
+    ],
+  ])(
+    '[%d] given %p as inputs, returns %p',
+    async (num: number, inputs: Map<string, string>, expected: Inputs) => {
+      inputs.forEach((value: string, name: string) => {
+        setInput(name, value);
+      });
+      expect(await getInputs()).toEqual(expected);
+    }
+  );
+});
+
+describe('getContext', () => {
+  const originalEnv = process.env;
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {
+      ...originalEnv,
+      ...dotenv.parse(fs.readFileSync(path.join(__dirname, 'fixtures/event_create_branch.env')))
+    };
+  });
+  afterEach(() => {
+    process.env = originalEnv;
+  });
+
+  it('workflow', async () => {
+    const context = await getContext(ContextSource.workflow);
+    expect(context.ref).toEqual('refs/heads/dev');
+    expect(context.sha).toEqual('5f3331d7f7044c18ca9f12c77d961c4d7cf3276a');
+  });
+
+  it('git', async () => {
+    jest.spyOn(Git, 'context').mockImplementation((): Promise<Context> => {
+      return Promise.resolve({
+        ref: 'refs/heads/git-test',
+        sha: 'git-test-sha'
+      } as Context);
     });
-
+    const context = await getContext(ContextSource.git);
-    expect(results).toEqual(testValues);
+    expect(context.ref).toEqual('refs/heads/git-test');
+    expect(context.sha).toEqual('git-test-sha');
   });
 });
 

__tests__/flavor.test.ts

@@ -1,4 +1,5 @@
 import {describe, expect, test} from '@jest/globals';
+
 import {Flavor, Transform} from '../src/flavor';
 
 describe('transform', () => {

__tests__/github.test.ts

@@ -1,14 +0,0 @@
-import {describe, expect, jest, it} from '@jest/globals';
-import * as github from '../src/github';
-
-import * as repoFixture from './fixtures/repo.json';
-jest.spyOn(github, 'repo').mockImplementation((): Promise<github.ReposGetResponseData> => {
-  return <Promise<github.ReposGetResponseData>>(repoFixture as unknown);
-});
-
-describe('repo', () => {
-  it('returns GitHub repository', async () => {
-    const repo = await github.repo(process.env.GITHUB_TOKEN || '');
-    expect(repo.name).not.toBeNull();
-  });
-});

__tests__/image.test.ts

@@ -1,4 +1,5 @@
 import {describe, expect, test} from '@jest/globals';
+
 import {Transform, Image} from '../src/image';
 
 describe('transform', () => {
@@ -86,7 +87,7 @@ describe('transform', () => {
     [
       [`name/foo,name=name/bar,enable=true`], undefined, true
     ]
-  ])('given %p', async (l: string[], expected: Image[], invalid: boolean) => {
+  ])('given %p', async (l: string[], expected: Image[] | undefined, invalid: boolean) => {
     try {
       const images = Transform(l);
       expect(images).toEqual(expected);

__tests__/tag.test.ts

@@ -1,4 +1,5 @@
 import {describe, expect, test} from '@jest/globals';
+
 import {Transform, Parse, Tag, Type, RefEvent, ShaFormat, DefaultPriorities} from '../src/tag';
 
 describe('transform', () => {
@@ -126,6 +127,18 @@ describe('parse', () => {
       } as Tag,
       false
     ],
+    [
+      `type=schedule,enable=true,pattern={{date 'YYYYMMDD' tz='Asia/Tokyo'}}`,
+      {
+        type: Type.Schedule,
+        attrs: {
+          "priority": DefaultPriorities[Type.Schedule],
+          "enable": "true",
+          "pattern": `{{date 'YYYYMMDD' tz='Asia/Tokyo'}}`
+        }
+      } as Tag,
+      false
+    ],
     [
       `type=semver,enable=true,pattern={{version}}`,
       {

action.yml

@@ -7,9 +7,13 @@ branding:
   color: 'blue'
 
 inputs:
+  context:
+    description: 'Where to get context data. Allowed options are "workflow"  (default), "git".'
+    default: "workflow"
+    required: true
   images:
     description: 'List of Docker images to use as base name for tags'
-    required: true
+    required: false
   tags:
     description: 'List of tags as key-value pair attributes'
     required: false
@@ -40,11 +44,19 @@ outputs:
     description: 'Generated Docker tags'
   labels:
     description: 'Generated Docker labels'
-  bake-file:
+  annotations:
-    description: 'Bake definiton file'
+    description: 'Generated annotations'
   json:
     description: 'JSON output of tags and labels'
+  bake-file-tags:
+    description: 'Bake definition file with tags'
+  bake-file-labels:
+    description: 'Bake definition file with labels'
+  bake-file-annotations:
+    description: 'Bake definiton file with annotations'
+  bake-file:
+    description: 'Bake definition file with tags and labels'
 
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'dist/index.js'

dev.Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG NODE_VERSION=16
+ARG NODE_VERSION=20
 
 FROM node:${NODE_VERSION}-alpine AS base
 RUN apk add --no-cache cpio findutils git
@@ -16,14 +16,14 @@ COPY --from=deps /vendor /
 
 FROM deps AS vendor-validate
 RUN --mount=type=bind,target=.,rw <<EOT
-set -e
+  set -e
-git add -A
+  git add -A
-cp -rf /vendor/* .
+  cp -rf /vendor/* .
-if [ -n "$(git status --porcelain -- yarn.lock)" ]; then
+  if [ -n "$(git status --porcelain -- yarn.lock)" ]; then
-  echo >&2 'ERROR: Vendor result differs. Please vendor your package with "docker buildx bake vendor-update"'
+    echo >&2 'ERROR: Vendor result differs. Please vendor your package with "docker buildx bake vendor-update"'
-  git status --porcelain -- yarn.lock
+    git status --porcelain -- yarn.lock
-  exit 1
+    exit 1
-fi
+  fi
 EOT
 
 FROM deps AS build
@@ -36,14 +36,14 @@ COPY --from=build /out /
 
 FROM build AS build-validate
 RUN --mount=type=bind,target=.,rw <<EOT
-set -e
+  set -e
-git add -A
+  git add -A
-cp -rf /out/* .
+  cp -rf /out/* .
-if [ -n "$(git status --porcelain -- dist)" ]; then
+  if [ -n "$(git status --porcelain -- dist)" ]; then
-  echo >&2 'ERROR: Build result differs. Please build first with "docker buildx bake build"'
+    echo >&2 'ERROR: Build result differs. Please build first with "docker buildx bake build"'
-  git status --porcelain -- dist
+    git status --porcelain -- dist
-  exit 1
+    exit 1
-fi
+  fi
 EOT
 
 FROM deps AS format
@@ -65,7 +65,7 @@ ENV RUNNER_TEMP=/tmp/github_runner
 ENV RUNNER_TOOL_CACHE=/tmp/github_tool_cache
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/node_modules \
-  yarn run test --coverageDirectory=/tmp/coverage
+  yarn run test --coverage --coverageDirectory=/tmp/coverage
 
 FROM scratch AS test-coverage
 COPY --from=test /tmp/coverage /

jest.config.ts

@@ -1,5 +1,21 @@
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-metadata-action-'));
+
+process.env = Object.assign({}, process.env, {
+  TEMP: tmpDir,
+  GITHUB_REPOSITORY: 'docker/metadata-action',
+  RUNNER_TEMP: path.join(tmpDir, 'runner-temp'),
+  RUNNER_TOOL_CACHE: path.join(tmpDir, 'runner-tool-cache')
+}) as {
+  [key: string]: string;
+};
+
 module.exports = {
   clearMocks: true,
+  testEnvironment: 'node',
   moduleFileExtensions: ['js', 'ts'],
   setupFiles: ['dotenv/config'],
   testMatch: ['**/*.test.ts'],
@@ -9,5 +25,7 @@ module.exports = {
   moduleNameMapper: {
     '^csv-parse/sync': '<rootDir>/node_modules/csv-parse/dist/cjs/sync.cjs'
   },
+  collectCoverageFrom: ['src/**/{!(main.ts),}.ts'],
+  coveragePathIgnorePatterns: ['lib/', 'node_modules/', '__mocks__/', '__tests__/'],
   verbose: true
 };

package.json

@@ -4,9 +4,13 @@
   "main": "lib/main.js",
   "scripts": {
     "build": "ncc build src/main.ts --source-map --minify --license licenses.txt",
-    "lint": "eslint src/**/*.ts __tests__/**/*.ts",
+    "lint": "yarn run prettier && yarn run eslint",
-    "format": "eslint --fix src/**/*.ts __tests__/**/*.ts",
+    "format": "yarn run prettier:fix && yarn run eslint:fix",
-    "test": "jest --coverage",
+    "eslint": "eslint --max-warnings=0 .",
+    "eslint:fix": "eslint --fix .",
+    "prettier": "prettier --check \"./**/*.ts\"",
+    "prettier:fix": "prettier --write \"./**/*.ts\"",
+    "test": "jest",
     "all": "yarn run build && yarn run format && yarn test"
   },
   "repository": {
@@ -20,39 +24,35 @@
     "tag",
     "label"
   ],
-  "author": "Docker",
+  "author": "Docker Inc.",
-  "contributors": [
-    {
-      "name": "CrazyMax",
-      "url": "https://crazymax.dev"
-    }
-  ],
   "license": "Apache-2.0",
   "dependencies": {
-    "@actions/core": "^1.10.0",
+    "@actions/core": "^1.10.1",
-    "@actions/github": "^5.1.1",
+    "@actions/github": "^6.0.0",
+    "@docker/actions-toolkit": "^0.14.0",
     "@renovate/pep440": "^1.0.0",
-    "csv-parse": "^5.3.0",
+    "csv-parse": "^5.5.2",
-    "handlebars": "^4.7.7",
+    "handlebars": "^4.7.8",
     "moment": "^2.29.4",
-    "semver": "^7.3.7"
+    "moment-timezone": "^0.5.43",
+    "semver": "^7.5.4"
   },
   "devDependencies": {
     "@types/csv-parse": "^1.2.2",
-    "@types/node": "^16.11.26",
+    "@types/node": "^20.5.9",
-    "@types/semver": "^7.3.9",
+    "@types/semver": "^7.5.1",
-    "@typescript-eslint/eslint-plugin": "^5.14.0",
+    "@typescript-eslint/eslint-plugin": "^6.6.0",
-    "@typescript-eslint/parser": "^5.14.0",
+    "@typescript-eslint/parser": "^6.6.0",
-    "@vercel/ncc": "^0.33.3",
+    "@vercel/ncc": "^0.38.0",
-    "dotenv": "^16.0.0",
+    "dotenv": "^16.3.1",
-    "eslint": "^8.11.0",
+    "eslint": "^8.48.0",
-    "eslint-config-prettier": "^8.5.0",
+    "eslint-config-prettier": "^9.0.0",
-    "eslint-plugin-jest": "^26.1.1",
+    "eslint-plugin-jest": "^27.2.3",
-    "eslint-plugin-prettier": "^4.0.0",
+    "eslint-plugin-prettier": "^5.0.0",
-    "jest": "^27.2.5",
+    "jest": "^29.6.4",
-    "prettier": "^2.3.1",
+    "prettier": "^3.0.3",
-    "ts-jest": "^27.1.2",
+    "ts-jest": "^29.1.1",
-    "ts-node": "^10.7.0",
+    "ts-node": "^10.9.1",
-    "typescript": "^4.4.4"
+    "typescript": "^5.2.2"
   }
 }

src/context.ts

@@ -1,12 +1,11 @@
-import * as fs from 'fs';
-import * as os from 'os';
-import * as path from 'path';
 import * as core from '@actions/core';
-import {parse} from 'csv-parse/sync';
+import {Context} from '@actions/github/lib/context';
-
+import {Util} from '@docker/actions-toolkit/lib/util';
-let _tmpDir: string;
+import {Git} from '@docker/actions-toolkit/lib/git';
+import {GitHub} from '@docker/actions-toolkit/lib/github';
 
 export interface Inputs {
+  context: ContextSource;
   images: string[];
   tags: string[];
   flavor: string[];
@@ -17,19 +16,13 @@ export interface Inputs {
   githubToken: string;
 }
 
-export function tmpDir(): string {
-  if (!_tmpDir) {
-    _tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-metadata-action-')).split(path.sep).join(path.posix.sep);
-  }
-  return _tmpDir;
-}
-
 export function getInputs(): Inputs {
   return {
-    images: getInputList('images', true),
+    context: (core.getInput('context') || ContextSource.workflow) as ContextSource,
-    tags: getInputList('tags', true),
+    images: Util.getInputList('images', {ignoreComma: true, comment: '#'}),
-    flavor: getInputList('flavor', true),
+    tags: Util.getInputList('tags', {ignoreComma: true, comment: '#'}),
-    labels: getInputList('labels', true),
+    flavor: Util.getInputList('flavor', {ignoreComma: true, comment: '#'}),
+    labels: Util.getInputList('labels', {ignoreComma: true, comment: '#'}),
     sepTags: core.getInput('sep-tags', {trimWhitespace: false}) || `\n`,
     sepLabels: core.getInput('sep-labels', {trimWhitespace: false}) || `\n`,
     bakeTarget: core.getInput('bake-target') || `docker-metadata-action`,
@@ -37,38 +30,44 @@ export function getInputs(): Inputs {
   };
 }
 
-export function getInputList(name: string, ignoreComma?: boolean): string[] {
+export enum ContextSource {
-  const res: Array<string> = [];
+  workflow = 'workflow',
-
+  git = 'git'
-  const items = core.getInput(name);
-  if (items == '') {
-    return res;
-  }
-
-  const records = parse(items, {
-    columns: false,
-    relaxQuotes: true,
-    comment: '#',
-    relaxColumnCount: true,
-    skipEmptyLines: true
-  });
-
-  for (const record of records as Array<string[]>) {
-    if (record.length == 1) {
-      res.push(record[0]);
-      continue;
-    } else if (!ignoreComma) {
-      res.push(...record);
-      continue;
-    }
-    res.push(record.join(','));
-  }
-
-  return res.filter(item => item).map(pat => pat.trim());
 }
 
-export const asyncForEach = async (array, callback) => {
+export async function getContext(source: ContextSource): Promise<Context> {
-  for (let index = 0; index < array.length; index++) {
+  switch (source) {
-    await callback(array[index], index, array);
+    case ContextSource.workflow:
+      return getContextFromWorkflow();
+    case ContextSource.git:
+      return await getContextFromGit();
+    default:
+      throw new Error(`Invalid context source: ${source}`);
   }
-};
+}
+
+function getContextFromWorkflow(): Context {
+  const context = GitHub.context;
+
+  // Needs to override Git reference with pr ref instead of upstream branch ref
+  // for pull_request_target event
+  // https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
+  if (/pull_request_target/.test(context.eventName)) {
+    context.ref = `refs/pull/${context.payload.number}/merge`;
+  }
+
+  // DOCKER_METADATA_PR_HEAD_SHA env var can be used to set associated head
+  // SHA instead of commit SHA that triggered the workflow on pull request
+  // event.
+  if (/true/i.test(process.env.DOCKER_METADATA_PR_HEAD_SHA || '')) {
+    if ((/pull_request/.test(context.eventName) || /pull_request_target/.test(context.eventName)) && context.payload?.pull_request?.head?.sha != undefined) {
+      context.sha = context.payload.pull_request.head.sha;
+    }
+  }
+
+  return context;
+}
+
+async function getContextFromGit(): Promise<Context> {
+  return await Git.context();
+}

src/github.ts

@@ -1,16 +0,0 @@
-import * as github from '@actions/github';
-import {Context} from '@actions/github/lib/context';
-import {components as OctoOpenApiTypes} from '@octokit/openapi-types';
-
-export type ReposGetResponseData = OctoOpenApiTypes['schemas']['repository'];
-
-export function context(): Context {
-  return github.context;
-}
-
-export async function repo(token: string): Promise<ReposGetResponseData> {
-  return github
-    .getOctokit(token)
-    .rest.repos.get({...github.context.repo})
-    .then(response => response.data as ReposGetResponseData);
-}

src/main.ts

@@ -1,34 +1,39 @@
 import * as fs from 'fs';
-import {getInputs, Inputs} from './context';
-import * as github from './github';
-import {Meta, Version} from './meta';
 import * as core from '@actions/core';
-import {Context} from '@actions/github/lib/context';
+import * as actionsToolkit from '@docker/actions-toolkit';
+import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
 
-async function run() {
+import {getContext, getInputs, Inputs} from './context';
-  try {
+import {Meta, Version} from './meta';
-    const inputs: Inputs = await getInputs();
-    if (inputs.images.length == 0) {
-      throw new Error(`images input required`);
-    }
 
-    const context: Context = github.context();
+function setOutput(name: string, value: string) {
-    const repo: github.ReposGetResponseData = await github.repo(inputs.githubToken);
+  core.setOutput(name, value);
-    core.startGroup(`Context info`);
+  core.exportVariable(`DOCKER_METADATA_OUTPUT_${name.replace(/\W/g, '_').toUpperCase()}`, value);
-    core.info(`eventName: ${context.eventName}`);
+}
-    core.info(`sha: ${context.sha}`);
+
-    core.info(`ref: ${context.ref}`);
+actionsToolkit.run(
-    core.info(`workflow: ${context.workflow}`);
+  // main
-    core.info(`action: ${context.action}`);
+  async () => {
-    core.info(`actor: ${context.actor}`);
+    const inputs: Inputs = getInputs();
-    core.info(`runNumber: ${context.runNumber}`);
+    const toolkit = new Toolkit({githubToken: inputs.githubToken});
-    core.info(`runId: ${context.runId}`);
+    const context = await getContext(inputs.context);
-    core.endGroup();
+    const repo = await toolkit.github.repoData();
+
+    await core.group(`Context info`, async () => {
+      core.info(`eventName: ${context.eventName}`);
+      core.info(`sha: ${context.sha}`);
+      core.info(`ref: ${context.ref}`);
+      core.info(`workflow: ${context.workflow}`);
+      core.info(`action: ${context.action}`);
+      core.info(`actor: ${context.actor}`);
+      core.info(`runNumber: ${context.runNumber}`);
+      core.info(`runId: ${context.runId}`);
+    });
 
     if (core.isDebug()) {
-      core.startGroup(`Webhook payload`);
+      await core.group(`Webhook payload`, async () => {
-      core.info(JSON.stringify(context.payload, null, 2));
+        core.info(JSON.stringify(context.payload, null, 2));
-      core.endGroup();
+      });
     }
 
     const meta: Meta = new Meta(inputs, context, repo);
@@ -37,50 +42,70 @@ async function run() {
     if (meta.version.main == undefined || meta.version.main.length == 0) {
       core.warning(`No Docker image version has been generated. Check tags input.`);
     } else {
-      core.startGroup(`Docker image version`);
+      await core.group(`Docker image version`, async () => {
-      core.info(version.main || '');
+        core.info(version.main || '');
-      core.endGroup();
+      });
     }
-    core.setOutput('version', version.main || '');
+    setOutput('version', version.main || '');
 
     // Docker tags
     const tags: Array<string> = meta.getTags();
     if (tags.length == 0) {
       core.warning('No Docker tag has been generated. Check tags input.');
     } else {
-      core.startGroup(`Docker tags`);
+      await core.group(`Docker tags`, async () => {
-      for (const tag of tags) {
+        for (const tag of tags) {
-        core.info(tag);
+          core.info(tag);
-      }
+        }
-      core.endGroup();
+      });
     }
-    core.setOutput('tags', tags.join(inputs.sepTags));
+    setOutput('tags', tags.join(inputs.sepTags));
 
     // Docker labels
     const labels: Array<string> = meta.getLabels();
-    core.startGroup(`Docker labels`);
+    await core.group(`Docker labels`, async () => {
-    for (const label of labels) {
+      for (const label of labels) {
-      core.info(label);
+        core.info(label);
+      }
+      setOutput('labels', labels.join(inputs.sepLabels));
+    });
+
+    // Annotations
+    const alevels = process.env.DOCKER_METADATA_ANNOTATIONS_LEVELS || 'manifest';
+    if (labels.length > 0) {
+      await core.group(`Annotations`, async () => {
+        const annotations: Array<string> = [];
+        for (const level of alevels.split(',')) {
+          annotations.push(
+            ...labels.map(label => {
+              const v = `${level}:${label}`;
+              core.info(v);
+              return v;
+            })
+          );
+        }
+        setOutput(`annotations`, annotations.join(inputs.sepLabels));
+      });
     }
-    core.endGroup();
-    core.setOutput('labels', labels.join(inputs.sepLabels));
 
     // JSON
-    const jsonOutput = meta.getJSON();
+    const jsonOutput = meta.getJSON(alevels.split(','));
-    core.startGroup(`JSON output`);
+    await core.group(`JSON output`, async () => {
-    core.info(JSON.stringify(jsonOutput, null, 2));
+      core.info(JSON.stringify(jsonOutput, null, 2));
-    core.endGroup();
+      setOutput('json', JSON.stringify(jsonOutput));
-    core.setOutput('json', jsonOutput);
+    });
 
-    // Bake file definition
+    // Bake files
-    const bakeFile: string = meta.getBakeFile();
+    for (const kind of ['tags', 'labels', 'annotations:' + alevels]) {
-    core.startGroup(`Bake file definition`);
+      const outputName = kind.split(':')[0];
-    core.info(fs.readFileSync(bakeFile, 'utf8'));
+      const bakeFile: string = meta.getBakeFile(kind);
-    core.endGroup();
+      await core.group(`Bake file definition (${outputName})`, async () => {
-    core.setOutput('bake-file', bakeFile);
+        core.info(fs.readFileSync(bakeFile, 'utf8'));
-  } catch (error) {
+        setOutput(`bake-file-${outputName}`, bakeFile);
-    core.setFailed(error.message);
+      });
+    }
+
+    // Bake file with tags and labels
+    setOutput(`bake-file`, meta.getBakeFileTagsLabels());
   }
-}
+);
-
-run();

src/meta.ts

@@ -1,16 +1,18 @@
 import * as handlebars from 'handlebars';
 import * as fs from 'fs';
 import * as path from 'path';
-import moment from 'moment';
+import moment from 'moment-timezone';
 import * as pep440 from '@renovate/pep440';
 import * as semver from 'semver';
-import {Inputs, tmpDir} from './context';
+import * as core from '@actions/core';
-import {ReposGetResponseData} from './github';
+import {Context} from '@actions/github/lib/context';
+import {Context as ToolkitContext} from '@docker/actions-toolkit/lib/context';
+import {GitHubRepo} from '@docker/actions-toolkit/lib/types/github';
+
+import {Inputs} from './context';
 import * as icl from './image';
 import * as tcl from './tag';
 import * as fcl from './flavor';
-import * as core from '@actions/core';
-import {Context} from '@actions/github/lib/context';
 
 export interface Version {
   main: string | undefined;
@@ -23,24 +25,13 @@ export class Meta {
 
   private readonly inputs: Inputs;
   private readonly context: Context;
-  private readonly repo: ReposGetResponseData;
+  private readonly repo: GitHubRepo;
   private readonly images: icl.Image[];
   private readonly tags: tcl.Tag[];
   private readonly flavor: fcl.Flavor;
   private readonly date: Date;
 
-  constructor(inputs: Inputs, context: Context, repo: ReposGetResponseData) {
+  constructor(inputs: Inputs, context: Context, repo: GitHubRepo) {
-    // Needs to override Git reference with pr ref instead of upstream branch ref
-    // for pull_request_target event
-    // https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
-    if (/pull_request_target/.test(context.eventName)) {
-      context.ref = `refs/pull/${context.payload.number}/merge`;
-    }
-
-    if ((/pull_request/.test(context.eventName) || /pull_request_target/.test(context.eventName)) && context.payload?.pull_request?.head?.sha != undefined) {
-      context.sha = context.payload.pull_request.head.sha;
-    }
-
     this.inputs = inputs;
     this.context = context;
     this.repo = repo;
@@ -124,8 +115,19 @@ export class Meta {
     const currentDate = this.date;
     const vraw = this.setValue(
       handlebars.compile(tag.attrs['pattern'])({
-        date: function (format) {
+        date: function (format, options) {
-          return moment(currentDate).utc().format(format);
+          const m = moment(currentDate);
+          let tz = 'UTC';
+          Object.keys(options.hash).forEach(key => {
+            switch (key) {
+              case 'tz':
+                tz = options.hash[key];
+                break;
+              default:
+                throw new Error(`Unknown ${key} attribute`);
+            }
+          });
+          return m.tz(tz).format(format);
         }
       }),
       tag
@@ -152,7 +154,7 @@ export class Meta {
 
     let latest = false;
     const sver = semver.parse(vraw, {
-      includePrerelease: true
+      loose: true
     });
     if (semver.prerelease(vraw)) {
       if (Meta.isRawStatement(tag.attrs['pattern'])) {
@@ -355,59 +357,70 @@ export class Meta {
   }
 
   private setGlobalExp(val): string {
-    const ctx = this.context;
+    const context = this.context;
     const currentDate = this.date;
     return handlebars.compile(val)({
       branch: function () {
-        if (!/^refs\/heads\//.test(ctx.ref)) {
+        if (!/^refs\/heads\//.test(context.ref)) {
           return '';
         }
-        return ctx.ref.replace(/^refs\/heads\//g, '');
+        return context.ref.replace(/^refs\/heads\//g, '');
       },
       tag: function () {
-        if (!/^refs\/tags\//.test(ctx.ref)) {
+        if (!/^refs\/tags\//.test(context.ref)) {
           return '';
         }
-        return ctx.ref.replace(/^refs\/tags\//g, '');
+        return context.ref.replace(/^refs\/tags\//g, '');
       },
       sha: function () {
-        return ctx.sha.substring(0, 7);
+        return context.sha.substring(0, 7);
       },
       base_ref: function () {
-        if (/^refs\/tags\//.test(ctx.ref) && ctx.payload?.base_ref != undefined) {
+        if (/^refs\/tags\//.test(context.ref) && context.payload?.base_ref != undefined) {
-          return ctx.payload.base_ref.replace(/^refs\/heads\//g, '');
+          return context.payload.base_ref.replace(/^refs\/heads\//g, '');
         }
         // FIXME: keep this for backward compatibility even if doesn't always seem
         //  to return the expected branch. See the comment below.
-        if (/^refs\/pull\//.test(ctx.ref) && ctx.payload?.pull_request?.base?.ref != undefined) {
+        if (/^refs\/pull\//.test(context.ref) && context.payload?.pull_request?.base?.ref != undefined) {
-          return ctx.payload.pull_request.base.ref;
+          return context.payload.pull_request.base.ref;
         }
         return '';
       },
       is_default_branch: function () {
-        const branch = ctx.ref.replace(/^refs\/heads\//g, '');
+        const branch = context.ref.replace(/^refs\/heads\//g, '');
         // TODO: "base_ref" is available in the push payload but doesn't always seem to
         //  return the expected branch when the push tag event occurs. It's also not
         //  documented in GitHub docs: https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#push
         //  more context: https://github.com/docker/metadata-action/pull/192#discussion_r854673012
-        // if (/^refs\/tags\//.test(ctx.ref) && ctx.payload?.base_ref != undefined) {
+        // if (/^refs\/tags\//.test(context.ref) && context.payload?.base_ref != undefined) {
-        //   branch = ctx.payload.base_ref.replace(/^refs\/heads\//g, '');
+        //   branch = context.payload.base_ref.replace(/^refs\/heads\//g, '');
         // }
         if (branch == undefined || branch.length == 0) {
           return 'false';
         }
-        if (ctx.payload?.repository?.default_branch == branch) {
+        if (context.payload?.repository?.default_branch == branch) {
           return 'true';
         }
         // following events always trigger for last commit on default branch
         // https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows
-        if (/create/.test(ctx.eventName) || /discussion/.test(ctx.eventName) || /issues/.test(ctx.eventName) || /schedule/.test(ctx.eventName)) {
+        if (/create/.test(context.eventName) || /discussion/.test(context.eventName) || /issues/.test(context.eventName) || /schedule/.test(context.eventName)) {
           return 'true';
         }
         return 'false';
       },
-      date: function (format) {
+      date: function (format, options) {
-        return moment(currentDate).utc().format(format);
+        const m = moment(currentDate);
+        let tz = 'UTC';
+        Object.keys(options.hash).forEach(key => {
+          switch (key) {
+            case 'tz':
+              tz = options.hash[key];
+              break;
+            default:
+              throw new Error(`Unknown ${key} attribute`);
+          }
+        });
+        return m.tz(tz).format(format);
       }
     });
   }
@@ -427,16 +440,29 @@ export class Meta {
     if (!this.version.main) {
       return [];
     }
-    const tags: Array<string> = [];
+
-    for (const imageName of this.getImageNames()) {
+    const generateTags = (imageName: string, version: string): Array<string> => {
-      tags.push(`${imageName}:${this.version.main}`);
+      const tags: Array<string> = [];
+      const prefix = imageName !== '' ? `${imageName}:` : '';
+      tags.push(`${prefix}${version}`);
       for (const partial of this.version.partial) {
-        tags.push(`${imageName}:${partial}`);
+        tags.push(`${prefix}${partial}`);
       }
       if (this.version.latest) {
         const latestTag = `${this.flavor.prefixLatest ? this.flavor.prefix : ''}latest${this.flavor.suffixLatest ? this.flavor.suffix : ''}`;
-        tags.push(`${imageName}:${Meta.sanitizeTag(latestTag)}`);
+        tags.push(`${prefix}${Meta.sanitizeTag(latestTag)}`);
       }
+      return tags;
+    };
+
+    const tags: Array<string> = [];
+    const images = this.getImageNames();
+    if (images.length > 0) {
+      for (const imageName of images) {
+        tags.push(...generateTags(imageName, this.version.main));
+      }
+    } else {
+      tags.push(...generateTags('', this.version.main));
     }
     return tags;
   }
@@ -453,10 +479,25 @@ export class Meta {
       `org.opencontainers.image.licenses=${this.repo.license?.spdx_id || ''}`
     ];
     labels.push(...this.inputs.labels);
-    return labels;
+
+    return Array.from(
+      new Map<string, string>(
+        labels
+          .map(label => label.split('='))
+          // eslint-disable-next-line @typescript-eslint/no-unused-vars
+          .filter(([_key, ...values]) => values.length > 0)
+          .map(([key, ...values]) => [key, values.join('=')] as [string, string])
+      )
+    )
+      .sort((a, b) => a[0].localeCompare(b[0]))
+      .map(([key, value]) => `${key}=${value}`);
   }
 
-  public getJSON(): unknown {
+  public getJSON(alevels: string[]): unknown {
+    const annotations: Array<string> = [];
+    for (const level of alevels) {
+      annotations.push(...this.getLabels().map(label => `${level}:${label}`));
+    }
     return {
       tags: this.getTags(),
       labels: this.getLabels().reduce((res, label) => {
@@ -466,12 +507,46 @@ export class Meta {
         }
         res[matches[1]] = matches[2];
         return res;
-      }, {})
+      }, {}),
+      annotations: annotations
     };
   }
 
-  public getBakeFile(): string {
+  public getBakeFile(kind: string): string {
-    const bakeFile = path.join(tmpDir(), 'docker-metadata-action-bake.json').split(path.sep).join(path.posix.sep);
+    if (kind == 'tags') {
+      return this.generateBakeFile(kind, {
+        tags: this.getTags(),
+        args: {
+          DOCKER_META_IMAGES: this.getImageNames().join(','),
+          DOCKER_META_VERSION: this.version.main
+        }
+      });
+    } else if (kind == 'labels') {
+      return this.generateBakeFile(kind, {
+        labels: this.getLabels().reduce((res, label) => {
+          const matches = label.match(/([^=]*)=(.*)/);
+          if (!matches) {
+            return res;
+          }
+          res[matches[1]] = matches[2];
+          return res;
+        }, {})
+      });
+    } else if (kind.startsWith('annotations:')) {
+      const name = kind.split(':')[0];
+      const annotations: Array<string> = [];
+      for (const level of kind.split(':')[1].split(',')) {
+        annotations.push(...this.getLabels().map(label => `${level}:${label}`));
+      }
+      return this.generateBakeFile(name, {
+        annotations: annotations
+      });
+    }
+    throw new Error(`Unknown bake file type: ${kind}`);
+  }
+
+  public getBakeFileTagsLabels(): string {
+    const bakeFile = path.join(ToolkitContext.tmpDir(), 'docker-metadata-action-bake.json');
     fs.writeFileSync(
       bakeFile,
       JSON.stringify(
@@ -498,7 +573,12 @@ export class Meta {
         2
       )
     );
+    return bakeFile;
+  }
 
+  private generateBakeFile(name: string, dt): string {
+    const bakeFile = path.join(ToolkitContext.tmpDir(), `docker-metadata-action-bake-${name}.json`);
+    fs.writeFileSync(bakeFile, JSON.stringify({target: {[this.inputs.bakeTarget]: dt}}, null, 2));
     return bakeFile;
   }
 

src/tag.ts

@@ -95,7 +95,7 @@ export function Parse(s: string): Tag {
   for (const field of fields) {
     const parts = field
       .toString()
-      .split('=')
+      .split(/(?<=^[^=]+?)=/)
       .map(item => item.trim());
     if (parts.length == 1) {
       tag.attrs['value'] = parts[0];

test/output.Dockerfile

@@ -0,0 +1,12 @@
+# syntax=docker/dockerfile:1
+FROM alpine
+RUN apk add --no-cache coreutils jq
+ARG DOCKER_METADATA_OUTPUT_VERSION
+ARG DOCKER_METADATA_OUTPUT_TAGS
+ARG DOCKER_METADATA_OUTPUT_LABELS
+ARG DOCKER_METADATA_OUTPUT_JSON
+RUN printenv DOCKER_METADATA_OUTPUT_VERSION
+RUN printenv DOCKER_METADATA_OUTPUT_TAGS
+RUN printenv DOCKER_METADATA_OUTPUT_LABELS
+RUN printenv DOCKER_METADATA_OUTPUT_JSON
+RUN echo $DOCKER_METADATA_OUTPUT_JSON | jq

tsconfig.json

@@ -1,20 +1,22 @@
 {
   "compilerOptions": {
+    "esModuleInterop": true,
     "target": "es6",
     "module": "commonjs",
+    "strict": true,
     "newLine": "lf",
     "outDir": "./lib",
     "rootDir": "./src",
-    "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
-    "strict": true,
     "noImplicitAny": false,
     "resolveJsonModule": true,
     "useUnknownInCatchVariables": false,
   },
   "exclude": [
+    "./__mocks__/**/*",
+    "./__tests__/**/*",
+    "./lib/**/*",
     "node_modules",
-    "**/*.test.ts",
     "jest.config.ts"
   ]
 }