Initial commit

2024-11-21 19:45:41 +01:00 · 2020-10-25 02:25:23 +01:00 · 2020-10-25 02:25:23 +01:00 · 90ec551e12
commit 90ec551e12
42 changed files with 14168 additions and 0 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -0,0 +1 @@
+node_modules
--- a/.editorconfig
+++ b/.editorconfig
@ -0,0 +1,15 @@
+# This file is for unifying the coding style for different editors and IDEs.
+# More information at http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
--- a/.gitattributes
+++ b/.gitattributes
@ -0,0 +1,2 @@
+/dist/** linguist-generated=true
+/lib/** linguist-generated=true
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@ -0,0 +1 @@
+*	@crazy-max
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -0,0 +1,45 @@
+## Contributing
+
+Hi there! We're thrilled that you'd like to contribute to this project. Your help is essential for keeping it great.
+
+Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [project's open source license](LICENSE).
+
+## Submitting a pull request
+
+1. [Fork](https://github.com/crazy-max/ghaction-docker-meta/fork) and clone the repository
+2. Configure and install the dependencies: `yarn install`
+3. Make sure the tests pass on your machine: `yarn run test`
+4. Create a new branch: `git checkout -b my-branch-name`
+5. Make your change, add tests, and make sure the tests still pass
+6. Run pre-checkin: `yarn run pre-checkin`
+7. Push to your fork and [submit a pull request](https://github.com/crazy-max/ghaction-docker-meta/compare)
+8. Pat your self on the back and wait for your pull request to be reviewed and merged.
+
+## Container based developer flow
+
+If you don't want to maintain a Node developer environment that fits this project you can use containerized commands instead of invoking yarn directly.
+
+```
+# format code and build javascript artifacts
+docker buildx bake pre-checkin
+
+# validate all code has correctly formatted and built
+docker buildx bake validate
+
+# run tests
+docker buildx bake test
+```
+
+Here are a few things you can do that will increase the likelihood of your pull request being accepted:
+
+- Write tests.
+- Make sure the `README.md` and any other relevant **documentation are kept up-to-date**.
+- We try to follow [SemVer v2.0.0](https://semver.org/). Randomly breaking public APIs is not an option.
+- Keep your change as focused as possible. If there are multiple changes you would like to make that are not dependent upon each other, consider submitting them as **separate pull requests**.
+- Write a [good commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
+
+## Resources
+
+- [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
+- [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
+- [GitHub Help](https://help.github.com)
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -0,0 +1,2 @@
+github: crazy-max
+custom: https://www.paypal.me/crazyws
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -0,0 +1,33 @@
+---
+name: Bug report
+about: Create a report to help us improve
+---
+
+### Behaviour
+
+#### Steps to reproduce this issue
+
+1.
+2.
+3.
+
+#### Expected behaviour
+
+> Tell me what should happen
+
+#### Actual behaviour
+
+> Tell me 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://help.github.com/en/actions/configuring-and-managing-workflows/managing-a-workflow-run#downloading-logs) and [attach it](https://help.github.com/en/github/managing-your-work-on-github/file-attachments-on-issues-and-pull-requests) to this issue.
--- a/.github/SUPPORT.md
+++ b/.github/SUPPORT.md
@ -0,0 +1,29 @@
+# Support [![](https://isitmaintained.com/badge/resolution/crazy-max/ghaction-docker-meta.svg)](https://isitmaintained.com/project/crazy-max/ghaction-docker-meta)
+
+## Reporting an issue
+
+Please do a search in [open issues](https://github.com/crazy-max/ghaction-docker-meta/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/crazy-max/ghaction-docker-meta/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 my discretion.
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -0,0 +1,22 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "06:00"
+      timezone: "Europe/Paris"
+    labels:
+      - ":game_die: dependencies"
+      - ":robot: bot"
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "06:00"
+      timezone: "Europe/Paris"
+    allow:
+      - dependency-type: "production"
+    labels:
+      - ":game_die: dependencies"
+      - ":robot: bot"
--- a/.github/stale.yml
+++ b/.github/stale.yml
@ -0,0 +1,18 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 30
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - ":hand: hold"
+# Set to true to ignore issues in a milestone (defaults to false)
+exemptMilestones: true
+# Label to use when marking an issue as stale
+staleLabel: ":skull: stale"
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,96 @@
+/.dev
+node_modules/
+lib
+
+# Jetbrains
+/.idea
+/*.iml
+
+# Rest of the file pulled from https://github.com/github/gitignore/blob/master/Node.gitignore
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
--- a/.prettierrc.json
+++ b/.prettierrc.json
@ -0,0 +1,11 @@
+{
+  "printWidth": 240,
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "none",
+  "bracketSpacing": false,
+  "arrowParens": "avoid",
+  "parser": "typescript"
+}
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -0,0 +1,5 @@
+# Changelog
+
+## 1.0.0 (2020/05/23)
+
+* Initial version
--- a/52
+++ b/52
@ -0,0 +1,52 @@
+#syntax=docker/dockerfile:1.1-experimental
+
+FROM node:12 AS deps
+WORKDIR /src
+COPY package.json yarn.lock ./
+RUN --mount=type=cache,target=/usr/local/share/.cache/yarn \
+  yarn install
+
+FROM scratch AS update-yarn
+COPY --from=deps /src/yarn.lock /
+
+FROM deps AS validate-yarn
+COPY .git .git
+RUN status=$(git status --porcelain -- yarn.lock); if [ -n "$status" ]; then echo $status; exit 1; fi
+
+FROM deps AS base
+COPY . .
+
+FROM base AS build
+RUN yarn build
+
+FROM deps AS test
+COPY --from=docker /usr/local/bin/docker /usr/bin/
+ARG TARGETOS
+ARG TARGETARCH
+ARG BUILDX_VERSION=v0.4.2
+ENV RUNNER_TEMP=/tmp/github_runner
+ENV RUNNER_TOOL_CACHE=/tmp/github_tool_cache
+RUN mkdir -p /usr/local/lib/docker/cli-plugins && \
+  curl -fsSL https://github.com/docker/buildx/releases/download/$BUILDX_VERSION/buildx-$BUILDX_VERSION.$TARGETOS-$TARGETARCH > /usr/local/lib/docker/cli-plugins/docker-buildx && \
+  chmod +x /usr/local/lib/docker/cli-plugins/docker-buildx && \
+  docker buildx version
+COPY . .
+RUN yarn run test
+
+FROM base AS run-format
+RUN yarn run format
+
+FROM scratch AS format
+COPY --from=run-format /src/src/*.ts /src/
+
+FROM base AS validate-format
+RUN yarn run format-check
+
+FROM scratch AS dist
+COPY --from=build /src/dist/ /dist/
+
+FROM build AS validate-build
+RUN status=$(git status --porcelain -- dist); if [ -n "$status" ]; then echo $status; exit 1; fi
+
+FROM base AS dev
+ENTRYPOINT ["bash"]
--- a/21
+++ b/21
@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 CrazyMax
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@ -0,0 +1,149 @@
+[![GitHub release](https://img.shields.io/github/release/crazy-max/ghaction-docker-meta.svg?style=flat-square)](https://github.com/crazy-max/ghaction-docker-meta/releases/latest)
+[![GitHub marketplace](https://img.shields.io/badge/marketplace-docker--meta-blue?logo=github&style=flat-square)](https://github.com/marketplace/actions/docker-meta)
+[![Test workflow](https://img.shields.io/github/workflow/status/crazy-max/ghaction-docker-meta/test?label=test&logo=github&style=flat-square)](https://github.com/crazy-max/ghaction-docker-meta/actions?workflow=test)
+[![Codecov](https://img.shields.io/codecov/c/github/crazy-max/ghaction-docker-meta?logo=codecov&style=flat-square)](https://codecov.io/gh/crazy-max/ghaction-docker-meta)
+[![Become a sponsor](https://img.shields.io/badge/sponsor-crazy--max-181717.svg?logo=github&style=flat-square)](https://github.com/sponsors/crazy-max)
+[![Paypal Donate](https://img.shields.io/badge/donate-paypal-00457c.svg?logo=paypal&style=flat-square)](https://www.paypal.me/crazyws)
+
+## About
+
+GitHub Action to extract metadata (tags, labels) for Docker. This action is particularly useful if used with
+[Docker Build Push](https://github.com/docker/build-push-action) action.
+
+If you are interested, [check out](https://git.io/Je09Y) my other :octocat: GitHub Actions!
+
+___
+
+* [Features](#features)
+* [Usage](#usage)
+* [Customizing](#customizing)
+  * [inputs](#inputs)
+  * [outputs](#outputs)
+* [Keep up-to-date with GitHub Dependabot](#keep-up-to-date-with-github-dependabot)
+* [How can I help?](#how-can-i-help)
+* [License](#license)
+
+## Features
+
+* Docker tags generated through GitHub action event and Git metadata
+* [OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/master/annotations.md) used to generate Docker labels
+
+## Usage
+
+| Event           | Ref                           | Commit SHA | Docker Tag                         | Pushed |
+|-----------------|-------------------------------|------------|------------------------------------|--------|
+| `schedule`      |                               |            | `nightly`                          | Yes    |
+| `pull_request`  | `refs/pull/2/merge`           | `a123b57`  | `sha-a123b57`, `pr-2`              | No     |
+| `push`          | `refs/heads/<default_branch>` | `676cae2`  | `sha-676cae2`, `edge`              | Yes    |
+| `push`          | `refs/heads/dev`              | `cf20257`  | `sha-cf20257`, `dev`               | Yes    |
+| `push`          | `refs/heads/my/branch`        | `a5df687`  | `sha-a5df687`, `my-branch`         | Yes    |
+| `push tag`      | `refs/tags/v1.2.3`            |            | `1.2.3`, `latest`                  | Yes    |
+| `push tag`      | `refs/tags/mytag`             |            | `mytag`                            | Yes    |
+
+```yaml
+name: ci
+
+on:
+  schedule:
+    - cron: '0 10 * * *' # everyday at 10am
+  push:
+    branches:
+      - '**'
+    tags:
+      - 'v*.*.*'
+  pull_request:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: crazy-max/ghaction-docker-meta@v1
+        with:
+          images: |
+            name/app
+            ghcr.io/name/app
+          tag-sha: true
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/386
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}
+```
+
+## Customizing
+
+### inputs
+
+Following inputs can be used as `step.with` keys
+
+| Name                | Type     | Description                        |
+|---------------------|----------|------------------------------------|
+| `images`            | List/CSV | List of Docker images to use as base name for tags |
+| `tag-sha`           | Bool     | Add git short SHA as Docker tag (default `false`) |
+| `tag-edge`          | String   | Branch that will be tagged as edge (default `${{ repo.default_branch }}` |
+| `sep-tags`          | String   | Separator to use for tags output (default `\n`) |
+| `sep-labels`        | String   | Separator to use for labels output (default `\n`) |
+
+> List/CSV type can be a newline or comma delimited string
+
+### outputs
+
+Following outputs are available
+
+| Name          | Type    | Description                           |
+|---------------|---------|---------------------------------------|
+| `tags`        | String  | Generated Docker tags |
+| `labels`      | String  | Generated Docker labels |
+
+## Keep up-to-date with GitHub Dependabot
+
+Since [Dependabot](https://docs.github.com/en/github/administering-a-repository/keeping-your-actions-up-to-date-with-github-dependabot)
+has [native GitHub Actions support](https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#package-ecosystem),
+to enable it on your GitHub repo all you need to do is add the `.github/dependabot.yml` file:
+
+```yaml
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+```
+
+## How can I help?
+
+All kinds of contributions are welcome :raised_hands:! The most basic way to show your support is to star :star2:
+the project, or to raise issues :speech_balloon: You can also support this project by
+[**becoming a sponsor on GitHub**](https://github.com/sponsors/crazy-max) :clap: or by making a
+[Paypal donation](https://www.paypal.me/crazyws) to ensure this journey continues indefinitely! :rocket:
+
+Thanks again for your support, it is much appreciated! :pray:
+
+## License
+
+MIT. See `LICENSE` for more details.
--- a/tests/context.test.ts
+++ b/tests/context.test.ts
@ -0,0 +1,74 @@
+import * as context from '../src/context';
+
+describe('getInputList', () => {
+  it('handles single line correctly', async () => {
+    await setInput('foo', 'bar');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar']);
+  });
+
+  it('handles multiple lines correctly', async () => {
+    setInput('foo', 'bar\nbaz');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz']);
+  });
+
+  it('remove empty lines correctly', async () => {
+    setInput('foo', 'bar\n\nbaz');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz']);
+  });
+
+  it('handles comma correctly', async () => {
+    setInput('foo', 'bar,baz');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz']);
+  });
+
+  it('remove empty result correctly', async () => {
+    setInput('foo', 'bar,baz,');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz']);
+  });
+
+  it('handles different new lines correctly', async () => {
+    setInput('foo', 'bar\r\nbaz');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz']);
+  });
+
+  it('handles different new lines and comma correctly', async () => {
+    setInput('foo', 'bar\r\nbaz,bat');
+    const res = await context.getInputList('foo');
+    console.log(res);
+    expect(res).toEqual(['bar', 'baz', 'bat']);
+  });
+});
+
+describe('asyncForEach', () => {
+  it('executes async tasks sequentially', async () => {
+    const testValues = [1, 2, 3, 4, 5];
+    const results: number[] = [];
+
+    await context.asyncForEach(testValues, async value => {
+      results.push(value);
+    });
+
+    expect(results).toEqual(testValues);
+  });
+});
+
+// See: https://github.com/actions/toolkit/blob/master/packages/core/src/core.ts#L67
+function getInputName(name: string): string {
+  return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`;
+}
+
+function setInput(name: string, value: string): void {
+  process.env[getInputName(name)] = value;
+}
--- a/tests/fixtures/event_empty.env
+++ b/tests/fixtures/event_empty.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=
+GITHUB_ACTIONS=
+GITHUB_ACTION_PATH=
+GITHUB_ACTOR=
+GITHUB_API_URL=
+GITHUB_BASE_REF=
+GITHUB_ENV=
+GITHUB_EVENT_NAME=
+GITHUB_EVENT_PATH=
+GITHUB_GRAPHQL_URL=
+GITHUB_HEAD_REF=
+GITHUB_JOB=
+GITHUB_PATH=
+GITHUB_REF=
+GITHUB_REPOSITORY=
+GITHUB_REPOSITORY_OWNER=
+GITHUB_RETENTION_DAYS=
+GITHUB_RUN_ID=
+GITHUB_RUN_NUMBER=
+GITHUB_SERVER_URL=
+GITHUB_SHA=
+GITHUB_WORKFLOW=
+GITHUB_WORKSPACE=
--- a/tests/fixtures/event_null.env
+++ b/tests/fixtures/event_null.env
--- a/tests/fixtures/event_pull_request.env
+++ b/tests/fixtures/event_pull_request.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=master
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_e00a951d-2585-4fac-b085-459d80e69a2f
+GITHUB_EVENT_NAME=pull_request
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=pr
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_e00a951d-2585-4fac-b085-459d80e69a2f
+GITHUB_REF=refs/pull/2/merge
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325972677
+GITHUB_RUN_NUMBER=7
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=1e9249f05bfc090e0688b8fb9c1b347586add504
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_push.env
+++ b/tests/fixtures/event_push.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_89a016e8-e5b7-4039-a67e-c8da08f87a0c
+GITHUB_EVENT_NAME=push
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_89a016e8-e5b7-4039-a67e-c8da08f87a0c
+GITHUB_REF=refs/heads/dev
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325957516
+GITHUB_RUN_NUMBER=1
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_push_defbranch.env
+++ b/tests/fixtures/event_push_defbranch.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_89a016e8-e5b7-4039-a67e-c8da08f87a0c
+GITHUB_EVENT_NAME=push
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_89a016e8-e5b7-4039-a67e-c8da08f87a0c
+GITHUB_REF=refs/heads/master
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325957516
+GITHUB_RUN_NUMBER=1
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_release.env
+++ b/tests/fixtures/event_release.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_7c207886-8ce7-4ad2-9b7f-f59dae4e5cf3
+GITHUB_EVENT_NAME=release
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_7c207886-8ce7-4ad2-9b7f-f59dae4e5cf3
+GITHUB_REF=refs/tags/v1.1.1
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325970352
+GITHUB_RUN_NUMBER=5
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_schedule.env
+++ b/tests/fixtures/event_schedule.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_5705dc72-e111-46f1-9421-a77a2daec643
+GITHUB_EVENT_NAME=schedule
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_5705dc72-e111-46f1-9421-a77a2daec643
+GITHUB_REF=refs/heads/master
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325965155
+GITHUB_RUN_NUMBER=3
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_tag.env
+++ b/tests/fixtures/event_tag.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_6ee180c2-b331-434a-a867-89534cbefd83
+GITHUB_EVENT_NAME=push
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_6ee180c2-b331-434a-a867-89534cbefd83
+GITHUB_REF=refs/tags/release1
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325968230
+GITHUB_RUN_NUMBER=4
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_tag_semver.env
+++ b/tests/fixtures/event_tag_semver.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_6ee180c2-b331-434a-a867-89534cbefd83
+GITHUB_EVENT_NAME=push
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_6ee180c2-b331-434a-a867-89534cbefd83
+GITHUB_REF=refs/tags/v1.1.1
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325968230
+GITHUB_RUN_NUMBER=4
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/event_workflow_dispatch.env
+++ b/tests/fixtures/event_workflow_dispatch.env
@ -0,0 +1,23 @@
+GITHUB_ACTION=crazy-maxghaction-dump-context
+GITHUB_ACTIONS=true
+GITHUB_ACTION_PATH=/home/runner/work/_actions/crazy-max/ghaction-dump-context/v1
+GITHUB_ACTOR=crazy-max
+GITHUB_API_URL=https://api.github.com
+GITHUB_BASE_REF=
+GITHUB_ENV=/home/runner/work/_temp/_runner_file_commands/set_env_4c49cda0-764d-4055-9bd9-7caf67fcb10c
+GITHUB_EVENT_NAME=workflow_dispatch
+#GITHUB_EVENT_PATH=/home/runner/work/_temp/_github_workflow/event.json
+GITHUB_GRAPHQL_URL=https://api.github.com/graphql
+GITHUB_HEAD_REF=
+GITHUB_JOB=event
+GITHUB_PATH=/home/runner/work/_temp/_runner_file_commands/add_path_4c49cda0-764d-4055-9bd9-7caf67fcb10c
+GITHUB_REF=refs/heads/master
+GITHUB_REPOSITORY=crazy-max/test-docker-action
+GITHUB_REPOSITORY_OWNER=crazy-max
+GITHUB_RETENTION_DAYS=90
+GITHUB_RUN_ID=325962325
+GITHUB_RUN_NUMBER=2
+GITHUB_SERVER_URL=https://github.com
+GITHUB_SHA=90dd6032fac8bda1b6c4436a2e65de27961ed071
+GITHUB_WORKFLOW=event
+GITHUB_WORKSPACE=/home/runner/work/test-docker-action/test-docker-action
--- a/tests/fixtures/repo.json
+++ b/tests/fixtures/repo.json
@ -0,0 +1,362 @@
+{
+  "id": 1296269,
+  "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
+  "name": "Hello-World",
+  "full_name": "octocat/Hello-World",
+  "owner": {
+    "login": "octocat",
+    "id": 1,
+    "node_id": "MDQ6VXNlcjE=",
+    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/octocat",
+    "html_url": "https://github.com/octocat",
+    "followers_url": "https://api.github.com/users/octocat/followers",
+    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
+    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
+    "organizations_url": "https://api.github.com/users/octocat/orgs",
+    "repos_url": "https://api.github.com/users/octocat/repos",
+    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/octocat/received_events",
+    "type": "User",
+    "site_admin": false
+  },
+  "private": false,
+  "html_url": "https://github.com/octocat/Hello-World",
+  "description": "This your first repo!",
+  "fork": false,
+  "url": "https://api.github.com/repos/octocat/Hello-World",
+  "archive_url": "http://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}",
+  "assignees_url": "http://api.github.com/repos/octocat/Hello-World/assignees{/user}",
+  "blobs_url": "http://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}",
+  "branches_url": "http://api.github.com/repos/octocat/Hello-World/branches{/branch}",
+  "collaborators_url": "http://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}",
+  "comments_url": "http://api.github.com/repos/octocat/Hello-World/comments{/number}",
+  "commits_url": "http://api.github.com/repos/octocat/Hello-World/commits{/sha}",
+  "compare_url": "http://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}",
+  "contents_url": "http://api.github.com/repos/octocat/Hello-World/contents/{+path}",
+  "contributors_url": "http://api.github.com/repos/octocat/Hello-World/contributors",
+  "deployments_url": "http://api.github.com/repos/octocat/Hello-World/deployments",
+  "downloads_url": "http://api.github.com/repos/octocat/Hello-World/downloads",
+  "events_url": "http://api.github.com/repos/octocat/Hello-World/events",
+  "forks_url": "http://api.github.com/repos/octocat/Hello-World/forks",
+  "git_commits_url": "http://api.github.com/repos/octocat/Hello-World/git/commits{/sha}",
+  "git_refs_url": "http://api.github.com/repos/octocat/Hello-World/git/refs{/sha}",
+  "git_tags_url": "http://api.github.com/repos/octocat/Hello-World/git/tags{/sha}",
+  "git_url": "git:github.com/octocat/Hello-World.git",
+  "issue_comment_url": "http://api.github.com/repos/octocat/Hello-World/issues/comments{/number}",
+  "issue_events_url": "http://api.github.com/repos/octocat/Hello-World/issues/events{/number}",
+  "issues_url": "http://api.github.com/repos/octocat/Hello-World/issues{/number}",
+  "keys_url": "http://api.github.com/repos/octocat/Hello-World/keys{/key_id}",
+  "labels_url": "http://api.github.com/repos/octocat/Hello-World/labels{/name}",
+  "languages_url": "http://api.github.com/repos/octocat/Hello-World/languages",
+  "merges_url": "http://api.github.com/repos/octocat/Hello-World/merges",
+  "milestones_url": "http://api.github.com/repos/octocat/Hello-World/milestones{/number}",
+  "notifications_url": "http://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}",
+  "pulls_url": "http://api.github.com/repos/octocat/Hello-World/pulls{/number}",
+  "releases_url": "http://api.github.com/repos/octocat/Hello-World/releases{/id}",
+  "ssh_url": "git@github.com:octocat/Hello-World.git",
+  "stargazers_url": "http://api.github.com/repos/octocat/Hello-World/stargazers",
+  "statuses_url": "http://api.github.com/repos/octocat/Hello-World/statuses/{sha}",
+  "subscribers_url": "http://api.github.com/repos/octocat/Hello-World/subscribers",
+  "subscription_url": "http://api.github.com/repos/octocat/Hello-World/subscription",
+  "tags_url": "http://api.github.com/repos/octocat/Hello-World/tags",
+  "teams_url": "http://api.github.com/repos/octocat/Hello-World/teams",
+  "trees_url": "http://api.github.com/repos/octocat/Hello-World/git/trees{/sha}",
+  "clone_url": "https://github.com/octocat/Hello-World.git",
+  "mirror_url": "git:git.example.com/octocat/Hello-World",
+  "hooks_url": "http://api.github.com/repos/octocat/Hello-World/hooks",
+  "svn_url": "https://svn.github.com/octocat/Hello-World",
+  "homepage": "https://github.com",
+  "language": null,
+  "forks_count": 9,
+  "stargazers_count": 80,
+  "watchers_count": 80,
+  "size": 108,
+  "default_branch": "master",
+  "open_issues_count": 0,
+  "is_template": true,
+  "topics": [
+    "octocat",
+    "atom",
+    "electron",
+    "api"
+  ],
+  "has_issues": true,
+  "has_projects": true,
+  "has_wiki": true,
+  "has_pages": false,
+  "has_downloads": true,
+  "archived": false,
+  "disabled": false,
+  "visibility": "public",
+  "pushed_at": "2011-01-26T19:06:43Z",
+  "created_at": "2011-01-26T19:01:12Z",
+  "updated_at": "2011-01-26T19:14:43Z",
+  "permissions": {
+    "pull": true,
+    "triage": true,
+    "push": false,
+    "maintain": false,
+    "admin": false
+  },
+  "allow_rebase_merge": true,
+  "template_repository": null,
+  "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+  "allow_squash_merge": true,
+  "delete_branch_on_merge": true,
+  "allow_merge_commit": true,
+  "subscribers_count": 42,
+  "network_count": 0,
+  "license": {
+    "key": "mit",
+    "name": "MIT License",
+    "spdx_id": "MIT",
+    "url": "https://api.github.com/licenses/mit",
+    "node_id": "MDc6TGljZW5zZW1pdA=="
+  },
+  "organization": {
+    "login": "octocat",
+    "id": 1,
+    "node_id": "MDQ6VXNlcjE=",
+    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/octocat",
+    "html_url": "https://github.com/octocat",
+    "followers_url": "https://api.github.com/users/octocat/followers",
+    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
+    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
+    "organizations_url": "https://api.github.com/users/octocat/orgs",
+    "repos_url": "https://api.github.com/users/octocat/repos",
+    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/octocat/received_events",
+    "type": "Organization",
+    "site_admin": false
+  },
+  "parent": {
+    "id": 1296269,
+    "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
+    "name": "Hello-World",
+    "full_name": "octocat/Hello-World",
+    "owner": {
+      "login": "octocat",
+      "id": 1,
+      "node_id": "MDQ6VXNlcjE=",
+      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/octocat",
+      "html_url": "https://github.com/octocat",
+      "followers_url": "https://api.github.com/users/octocat/followers",
+      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
+      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
+      "organizations_url": "https://api.github.com/users/octocat/orgs",
+      "repos_url": "https://api.github.com/users/octocat/repos",
+      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/octocat/received_events",
+      "type": "User",
+      "site_admin": false
+    },
+    "private": false,
+    "html_url": "https://github.com/octocat/Hello-World",
+    "description": "This your first repo!",
+    "fork": false,
+    "url": "https://api.github.com/repos/octocat/Hello-World",
+    "archive_url": "http://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}",
+    "assignees_url": "http://api.github.com/repos/octocat/Hello-World/assignees{/user}",
+    "blobs_url": "http://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}",
+    "branches_url": "http://api.github.com/repos/octocat/Hello-World/branches{/branch}",
+    "collaborators_url": "http://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}",
+    "comments_url": "http://api.github.com/repos/octocat/Hello-World/comments{/number}",
+    "commits_url": "http://api.github.com/repos/octocat/Hello-World/commits{/sha}",
+    "compare_url": "http://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}",
+    "contents_url": "http://api.github.com/repos/octocat/Hello-World/contents/{+path}",
+    "contributors_url": "http://api.github.com/repos/octocat/Hello-World/contributors",
+    "deployments_url": "http://api.github.com/repos/octocat/Hello-World/deployments",
+    "downloads_url": "http://api.github.com/repos/octocat/Hello-World/downloads",
+    "events_url": "http://api.github.com/repos/octocat/Hello-World/events",
+    "forks_url": "http://api.github.com/repos/octocat/Hello-World/forks",
+    "git_commits_url": "http://api.github.com/repos/octocat/Hello-World/git/commits{/sha}",
+    "git_refs_url": "http://api.github.com/repos/octocat/Hello-World/git/refs{/sha}",
+    "git_tags_url": "http://api.github.com/repos/octocat/Hello-World/git/tags{/sha}",
+    "git_url": "git:github.com/octocat/Hello-World.git",
+    "issue_comment_url": "http://api.github.com/repos/octocat/Hello-World/issues/comments{/number}",
+    "issue_events_url": "http://api.github.com/repos/octocat/Hello-World/issues/events{/number}",
+    "issues_url": "http://api.github.com/repos/octocat/Hello-World/issues{/number}",
+    "keys_url": "http://api.github.com/repos/octocat/Hello-World/keys{/key_id}",
+    "labels_url": "http://api.github.com/repos/octocat/Hello-World/labels{/name}",
+    "languages_url": "http://api.github.com/repos/octocat/Hello-World/languages",
+    "merges_url": "http://api.github.com/repos/octocat/Hello-World/merges",
+    "milestones_url": "http://api.github.com/repos/octocat/Hello-World/milestones{/number}",
+    "notifications_url": "http://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}",
+    "pulls_url": "http://api.github.com/repos/octocat/Hello-World/pulls{/number}",
+    "releases_url": "http://api.github.com/repos/octocat/Hello-World/releases{/id}",
+    "ssh_url": "git@github.com:octocat/Hello-World.git",
+    "stargazers_url": "http://api.github.com/repos/octocat/Hello-World/stargazers",
+    "statuses_url": "http://api.github.com/repos/octocat/Hello-World/statuses/{sha}",
+    "subscribers_url": "http://api.github.com/repos/octocat/Hello-World/subscribers",
+    "subscription_url": "http://api.github.com/repos/octocat/Hello-World/subscription",
+    "tags_url": "http://api.github.com/repos/octocat/Hello-World/tags",
+    "teams_url": "http://api.github.com/repos/octocat/Hello-World/teams",
+    "trees_url": "http://api.github.com/repos/octocat/Hello-World/git/trees{/sha}",
+    "clone_url": "https://github.com/octocat/Hello-World.git",
+    "mirror_url": "git:git.example.com/octocat/Hello-World",
+    "hooks_url": "http://api.github.com/repos/octocat/Hello-World/hooks",
+    "svn_url": "https://svn.github.com/octocat/Hello-World",
+    "homepage": "https://github.com",
+    "language": null,
+    "forks_count": 9,
+    "stargazers_count": 80,
+    "watchers_count": 80,
+    "size": 108,
+    "default_branch": "master",
+    "open_issues_count": 0,
+    "is_template": true,
+    "topics": [
+      "octocat",
+      "atom",
+      "electron",
+      "api"
+    ],
+    "has_issues": true,
+    "has_projects": true,
+    "has_wiki": true,
+    "has_pages": false,
+    "has_downloads": true,
+    "archived": false,
+    "disabled": false,
+    "visibility": "public",
+    "pushed_at": "2011-01-26T19:06:43Z",
+    "created_at": "2011-01-26T19:01:12Z",
+    "updated_at": "2011-01-26T19:14:43Z",
+    "permissions": {
+      "admin": false,
+      "push": false,
+      "pull": true
+    },
+    "allow_rebase_merge": true,
+    "template_repository": null,
+    "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+    "allow_squash_merge": true,
+    "delete_branch_on_merge": true,
+    "allow_merge_commit": true,
+    "subscribers_count": 42,
+    "network_count": 0
+  },
+  "source": {
+    "id": 1296269,
+    "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
+    "name": "Hello-World",
+    "full_name": "octocat/Hello-World",
+    "owner": {
+      "login": "octocat",
+      "id": 1,
+      "node_id": "MDQ6VXNlcjE=",
+      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/octocat",
+      "html_url": "https://github.com/octocat",
+      "followers_url": "https://api.github.com/users/octocat/followers",
+      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
+      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
+      "organizations_url": "https://api.github.com/users/octocat/orgs",
+      "repos_url": "https://api.github.com/users/octocat/repos",
+      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/octocat/received_events",
+      "type": "User",
+      "site_admin": false
+    },
+    "private": false,
+    "html_url": "https://github.com/octocat/Hello-World",
+    "description": "This your first repo!",
+    "fork": false,
+    "url": "https://api.github.com/repos/octocat/Hello-World",
+    "archive_url": "http://api.github.com/repos/octocat/Hello-World/{archive_format}{/ref}",
+    "assignees_url": "http://api.github.com/repos/octocat/Hello-World/assignees{/user}",
+    "blobs_url": "http://api.github.com/repos/octocat/Hello-World/git/blobs{/sha}",
+    "branches_url": "http://api.github.com/repos/octocat/Hello-World/branches{/branch}",
+    "collaborators_url": "http://api.github.com/repos/octocat/Hello-World/collaborators{/collaborator}",
+    "comments_url": "http://api.github.com/repos/octocat/Hello-World/comments{/number}",
+    "commits_url": "http://api.github.com/repos/octocat/Hello-World/commits{/sha}",
+    "compare_url": "http://api.github.com/repos/octocat/Hello-World/compare/{base}...{head}",
+    "contents_url": "http://api.github.com/repos/octocat/Hello-World/contents/{+path}",
+    "contributors_url": "http://api.github.com/repos/octocat/Hello-World/contributors",
+    "deployments_url": "http://api.github.com/repos/octocat/Hello-World/deployments",
+    "downloads_url": "http://api.github.com/repos/octocat/Hello-World/downloads",
+    "events_url": "http://api.github.com/repos/octocat/Hello-World/events",
+    "forks_url": "http://api.github.com/repos/octocat/Hello-World/forks",
+    "git_commits_url": "http://api.github.com/repos/octocat/Hello-World/git/commits{/sha}",
+    "git_refs_url": "http://api.github.com/repos/octocat/Hello-World/git/refs{/sha}",
+    "git_tags_url": "http://api.github.com/repos/octocat/Hello-World/git/tags{/sha}",
+    "git_url": "git:github.com/octocat/Hello-World.git",
+    "issue_comment_url": "http://api.github.com/repos/octocat/Hello-World/issues/comments{/number}",
+    "issue_events_url": "http://api.github.com/repos/octocat/Hello-World/issues/events{/number}",
+    "issues_url": "http://api.github.com/repos/octocat/Hello-World/issues{/number}",
+    "keys_url": "http://api.github.com/repos/octocat/Hello-World/keys{/key_id}",
+    "labels_url": "http://api.github.com/repos/octocat/Hello-World/labels{/name}",
+    "languages_url": "http://api.github.com/repos/octocat/Hello-World/languages",
+    "merges_url": "http://api.github.com/repos/octocat/Hello-World/merges",
+    "milestones_url": "http://api.github.com/repos/octocat/Hello-World/milestones{/number}",
+    "notifications_url": "http://api.github.com/repos/octocat/Hello-World/notifications{?since,all,participating}",
+    "pulls_url": "http://api.github.com/repos/octocat/Hello-World/pulls{/number}",
+    "releases_url": "http://api.github.com/repos/octocat/Hello-World/releases{/id}",
+    "ssh_url": "git@github.com:octocat/Hello-World.git",
+    "stargazers_url": "http://api.github.com/repos/octocat/Hello-World/stargazers",
+    "statuses_url": "http://api.github.com/repos/octocat/Hello-World/statuses/{sha}",
+    "subscribers_url": "http://api.github.com/repos/octocat/Hello-World/subscribers",
+    "subscription_url": "http://api.github.com/repos/octocat/Hello-World/subscription",
+    "tags_url": "http://api.github.com/repos/octocat/Hello-World/tags",
+    "teams_url": "http://api.github.com/repos/octocat/Hello-World/teams",
+    "trees_url": "http://api.github.com/repos/octocat/Hello-World/git/trees{/sha}",
+    "clone_url": "https://github.com/octocat/Hello-World.git",
+    "mirror_url": "git:git.example.com/octocat/Hello-World",
+    "hooks_url": "http://api.github.com/repos/octocat/Hello-World/hooks",
+    "svn_url": "https://svn.github.com/octocat/Hello-World",
+    "homepage": "https://github.com",
+    "language": null,
+    "forks_count": 9,
+    "stargazers_count": 80,
+    "watchers_count": 80,
+    "size": 108,
+    "default_branch": "master",
+    "open_issues_count": 0,
+    "is_template": true,
+    "topics": [
+      "octocat",
+      "atom",
+      "electron",
+      "api"
+    ],
+    "has_issues": true,
+    "has_projects": true,
+    "has_wiki": true,
+    "has_pages": false,
+    "has_downloads": true,
+    "archived": false,
+    "disabled": false,
+    "visibility": "public",
+    "pushed_at": "2011-01-26T19:06:43Z",
+    "created_at": "2011-01-26T19:01:12Z",
+    "updated_at": "2011-01-26T19:14:43Z",
+    "permissions": {
+      "admin": false,
+      "push": false,
+      "pull": true
+    },
+    "allow_rebase_merge": true,
+    "template_repository": null,
+    "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+    "allow_squash_merge": true,
+    "delete_branch_on_merge": true,
+    "allow_merge_commit": true,
+    "subscribers_count": 42,
+    "network_count": 0
+  }
+}
--- a/tests/github.test.ts
+++ b/tests/github.test.ts
@ -0,0 +1,17 @@
+import * as path from 'path';
+import * as github from '../src/github';
+import {ReposGetResponseData} from '@octokit/types';
+
+jest.spyOn(github, 'repo').mockImplementation(
+  (): Promise<ReposGetResponseData> => {
+    return <Promise<ReposGetResponseData>>require(path.join(__dirname, 'fixtures', 'repo.json'));
+  }
+);
+
+describe('repo', () => {
+  it('returns GitHub repository', async () => {
+    const repo = await github.repo(process.env.GITHUB_TOKEN || '');
+    console.log(repo);
+    expect(repo.name).not.toBeNull();
+  });
+});
--- a/tests/meta.test.ts
+++ b/tests/meta.test.ts
@ -0,0 +1,510 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as dotenv from 'dotenv';
+import {Inputs} from '../src/context';
+import * as github from '../src/github';
+import {Meta} from '../src/meta';
+import {Context} from '@actions/github/lib/context';
+import {ReposGetResponseData} from '@octokit/types';
+
+jest.spyOn(github, 'repo').mockImplementation(
+  (): Promise<ReposGetResponseData> => {
+    return <Promise<ReposGetResponseData>>require(path.join(__dirname, 'fixtures', 'repo.json'));
+  }
+);
+
+jest.spyOn(github, 'context').mockImplementation(
+  (): Context => {
+    return new Context();
+  }
+);
+
+jest.spyOn(global.Date.prototype, 'toISOString').mockImplementation(() => {
+  return '2020-01-10T00:30:00.000Z';
+});
+
+describe('tags and labels', () => {
+  beforeEach(() => {
+    Object.keys(process.env).forEach(function (key) {
+      if (key !== 'GITHUB_TOKEN' && key.startsWith('GITHUB_')) {
+        delete process.env[key];
+      }
+    });
+  });
+
+  // prettier-ignore
+  test.each([
+    [
+      'event_null.env',
+      {
+        images: ['user/app'],
+      },
+      [],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_empty.env',
+      {
+        images: ['user/app'],
+      },
+      [],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_pull_request.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:pr-2'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=pr-2",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=1e9249f05bfc090e0688b8fb9c1b347586add504",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:dev'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=dev",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push_defbranch.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:edge'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=edge",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_release.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:1.1.1',
+        'user/app:latest'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=1.1.1",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_schedule.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:nightly'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=nightly",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_tag.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:release1'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=release1",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_tag_semver.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:1.1.1',
+        'user/app:latest'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=1.1.1",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_workflow_dispatch.env',
+      {
+        images: ['user/app'],
+      },
+      [
+        'user/app:edge'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=edge",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_pull_request.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+      },
+      [
+        'org/app:pr-2',
+        'ghcr.io/user/app:pr-2'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=pr-2",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=1e9249f05bfc090e0688b8fb9c1b347586add504",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+      },
+      [
+        'org/app:dev',
+        'ghcr.io/user/app:dev'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=dev",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push_defbranch.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+      },
+      [
+        'org/app:edge',
+        'ghcr.io/user/app:edge'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=edge",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_schedule.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+      },
+      [
+        'org/app:nightly',
+        'ghcr.io/user/app:nightly'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=nightly",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_tag_semver.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+      },
+      [
+        'org/app:1.1.1',
+        'org/app:latest',
+        'ghcr.io/user/app:1.1.1',
+        'ghcr.io/user/app:latest'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=1.1.1",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_pull_request.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+      },
+      [
+        'org/app:pr-2',
+        'org/app:sha-1e9249f',
+        'ghcr.io/user/app:pr-2',
+        'ghcr.io/user/app:sha-1e9249f'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=pr-2",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=1e9249f05bfc090e0688b8fb9c1b347586add504",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+      },
+      [
+        'org/app:dev',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:dev',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=dev",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push_defbranch.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+      },
+      [
+        'org/app:edge',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:edge',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=edge",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_schedule.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+      },
+      [
+        'org/app:nightly',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:nightly',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=nightly",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_tag_semver.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+      },
+      [
+        'org/app:1.1.1',
+        'org/app:latest',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:1.1.1',
+        'ghcr.io/user/app:latest',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=1.1.1",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+        tagEdge: 'dev'
+      },
+      [
+        'org/app:edge',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:edge',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=edge",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'event_push_defbranch.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tagSha: true,
+        tagEdge: 'dev'
+      },
+      [
+        'org/app:master',
+        'org/app:sha-90dd603',
+        'ghcr.io/user/app:master',
+        'ghcr.io/user/app:sha-90dd603'
+      ],
+      [
+        "org.opencontainers.image.title=Hello-World",
+        "org.opencontainers.image.description=This your first repo!",
+        "org.opencontainers.image.url=https://github.com/octocat/Hello-World",
+        "org.opencontainers.image.source=https://github.com/octocat/Hello-World.git",
+        "org.opencontainers.image.version=master",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+  ])('given %p event ', async (envFile, inputs, exTags, exLabels) => {
+    process.env = dotenv.parse(fs.readFileSync(path.join(__dirname, 'fixtures', envFile)));
+    console.log(process.env);
+
+    const context = github.context();
+    console.log(context);
+
+    const repo = await github.repo(process.env.GITHUB_TOKEN || '');
+    const meta = new Meta(inputs as Inputs, context, repo);
+
+    const tags = meta.tags();
+    console.log(tags)
+    expect(tags).toEqual(exTags);
+
+    const labels = meta.labels();
+    console.log(labels)
+    expect(labels).toEqual(exLabels);
+  });
+});
--- a/action.yml
+++ b/action.yml
@ -0,0 +1,41 @@
+# https://help.github.com/en/articles/metadata-syntax-for-github-actions
+name: 'Docker Metadata'
+description: "GitHub Action to extract metadata (tags, labels) for Docker"
+author: 'crazy-max'
+branding:
+  color: 'blue'
+  icon: 'layers'
+
+inputs:
+  images:
+    description: 'List of Docker images to use as base name for tags'
+    required: true
+  tag-sha:
+    description: 'Add git short SHA as Docker tag'
+    default: 'false'
+    required: false
+  tag-edge:
+    description: 'Branch that will be tagged as edge (default ${{ repo.default_branch }})'
+    required: false
+  sep-tags:
+    description: 'Separator to use for tags output (default \n)'
+    default: '\n'
+    required: false
+  sep-labels:
+    description: 'Separator to use for labels output (default \n)'
+    default: '\n'
+    required: false
+  github-token:
+    description: 'GitHub Token as provided by secrets'
+    default: ${{ github.token }}
+    required: true
+
+outputs:
+  tags:
+    description: 'Generated Docker tags'
+  labels:
+    description: 'Generated Docker labels'
+
+runs:
+  using: 'node12'
+  main: 'dist/index.js'
--- a/dist/index.js
+++ b/dist/index.js
--- a/docker-bake.hcl
+++ b/docker-bake.hcl
@ -0,0 +1,42 @@
+group "default" {
+  targets = ["build"]
+}
+
+group "pre-checkin" {
+  targets = ["update-yarn", "format", "build"]
+}
+
+group "validate" {
+	targets = ["validate-format", "validate-build", "validate-yarn"]
+}
+
+target "update-yarn" {
+  target = "update-yarn"
+  output = ["."]
+}
+
+target "build" {
+  target = "dist"
+  output = ["."]
+}
+
+target "test" {
+  target = "test"
+}
+
+target "format" {
+  target = "format"
+  output = ["."]
+}
+
+target "validate-format" {
+  target = "validate-format"
+}
+
+target "validate-build" {
+  target = "validate-build"
+}
+
+target "validate-yarn" {
+	target = "validate-yarn"
+}
--- a/jest.config.js
+++ b/jest.config.js
@ -0,0 +1,12 @@
+module.exports = {
+  clearMocks: true,
+  moduleFileExtensions: ['js', 'ts'],
+  setupFiles: ["dotenv/config"],
+  testEnvironment: 'node',
+  testMatch: ['**/*.test.ts'],
+  testRunner: 'jest-circus/runner',
+  transform: {
+    '^.+\\.ts$': 'ts-jest'
+  },
+  verbose: false
+}
--- a/package.json
+++ b/package.json
@ -0,0 +1,42 @@
+{
+  "name": "docker-meta",
+  "description": "GitHub Action to extract metadata (tags, labels) for Docker",
+  "main": "lib/main.js",
+  "scripts": {
+    "build": "tsc && ncc build",
+    "test": "jest --coverage",
+    "format": "prettier --write **/*.ts",
+    "format-check": "prettier --check **/*.ts",
+    "pre-checkin": "yarn run format && yarn run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/crazy-max/ghaction-docker-meta.git"
+  },
+  "keywords": [
+    "actions",
+    "docker",
+    "meta",
+    "tag",
+    "label"
+  ],
+  "author": "CrazyMax",
+  "license": "MIT",
+  "dependencies": {
+    "@actions/core": "^1.2.6",
+    "@actions/github": "^4.0.0",
+    "dotenv": "^8.2.0",
+    "semver": "^7.3.2"
+  },
+  "devDependencies": {
+    "@types/jest": "^26.0.0",
+    "@types/node": "^14.11.2",
+    "@vercel/ncc": "^0.24.1",
+    "jest": "^26.0.1",
+    "jest-circus": "^26.0.1",
+    "jest-runtime": "^26.0.1",
+    "prettier": "^2.0.4",
+    "ts-jest": "^26.4.1",
+    "typescript": "^4.0.3"
+  }
+}
--- a/src/context.ts
+++ b/src/context.ts
@ -0,0 +1,38 @@
+import * as core from '@actions/core';
+
+export interface Inputs {
+  images: string[];
+  tagSha: boolean;
+  tagEdge: string;
+  sepTags: string;
+  sepLabels: string;
+  githubToken: string;
+}
+
+export function getInputs(): Inputs {
+  return {
+    images: getInputList('images'),
+    tagSha: /true/i.test(core.getInput('tag-sha')),
+    tagEdge: core.getInput('tag-edge'),
+    sepTags: core.getInput('sep-tags') || `\n`,
+    sepLabels: core.getInput('sep-labels') || `\n`,
+    githubToken: core.getInput('github-token')
+  };
+}
+
+export function getInputList(name: string): string[] {
+  const items = core.getInput(name);
+  if (items == '') {
+    return [];
+  }
+  return items
+    .split(/\r?\n/)
+    .filter(x => x)
+    .reduce<string[]>((acc, line) => acc.concat(line.split(',').filter(x => x)).map(pat => pat.trim()), []);
+}
+
+export const asyncForEach = async (array, callback) => {
+  for (let index = 0; index < array.length; index++) {
+    await callback(array[index], index, array);
+  }
+};
--- a/src/github.ts
+++ b/src/github.ts
@ -0,0 +1,18 @@
+import * as github from '@actions/github';
+import {Context} from '@actions/github/lib/context';
+import {ReposGetResponseData} from '@octokit/types';
+
+export function context(): Context {
+  return github.context;
+}
+
+export async function repo(token: string): Promise<ReposGetResponseData> {
+  const octokit = github.getOctokit(token);
+  const repo = await octokit.repos.get({
+    ...github.context.repo
+  });
+  if (!repo?.data) {
+    throw new Error('Cannot get GitHub repository');
+  }
+  return repo.data;
+}
--- a/src/main.ts
+++ b/src/main.ts
@ -0,0 +1,47 @@
+import {getInputs, Inputs} from './context';
+import * as github from './github';
+import {Meta} from './meta';
+import * as core from '@actions/core';
+import {Context} from '@actions/github/lib/context';
+import {ReposGetResponseData} from '@octokit/types';
+
+async function run() {
+  try {
+    const inputs: Inputs = await getInputs();
+    if (inputs.images.length == 0) {
+      throw new Error(`images input required`);
+    }
+
+    const context: Context = github.context();
+    const repo: ReposGetResponseData = await github.repo(inputs.githubToken);
+    core.startGroup(`Context info`);
+    core.info(`repo: ${context.repo}`);
+    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: ${context.runId}`);
+    core.endGroup();
+
+    const meta: Meta = new Meta(inputs, context, repo);
+
+    const tags: Array<string> = meta.tags();
+    core.startGroup(`Generated Docker tags`);
+    core.info(JSON.stringify(tags));
+    core.endGroup();
+    core.setOutput('tags', tags.join(inputs.sepTags));
+
+    const labels: Array<string> = meta.labels();
+    core.startGroup(`Generated Docker labels`);
+    core.info(JSON.stringify(labels));
+    core.endGroup();
+    core.setOutput('labels', labels.join(inputs.sepTags));
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+run();
--- a/src/meta.ts
+++ b/src/meta.ts
@ -0,0 +1,96 @@
+import * as semver from 'semver';
+import {Inputs} from './context';
+import * as core from '@actions/core';
+import {Context} from '@actions/github/lib/context';
+import {ReposGetResponseData} from '@octokit/types';
+
+export class Meta {
+  private readonly inputs: Inputs;
+  private readonly context: Context;
+  private readonly repo: ReposGetResponseData;
+
+  constructor(inputs: Inputs, context: Context, repo: ReposGetResponseData) {
+    this.inputs = inputs;
+    if (!this.inputs.tagEdge) {
+      this.inputs.tagEdge = repo.default_branch;
+    }
+    this.context = context;
+    this.repo = repo;
+  }
+
+  public tags(): Array<string> {
+    let tags: Array<string> = [];
+    for (const image of this.inputs.images) {
+      if (/schedule/.test(this.context.eventName)) {
+        tags.push.apply(tags, Meta.eventSchedule(image));
+      } else if (/^refs\/tags\//.test(this.context.ref)) {
+        tags.push.apply(tags, this.eventTag(image));
+      } else if (/^refs\/heads\//.test(this.context.ref)) {
+        tags.push.apply(tags, this.eventBranch(image));
+      } else if (/^refs\/pull\//.test(this.context.ref)) {
+        tags.push.apply(tags, this.eventPullRequest(image));
+      } else {
+        core.warning(`Unknown event "${this.context.eventName}" with ref "${this.context.ref}"`);
+      }
+      if (this.context.sha && this.inputs.tagSha) {
+        tags.push(`${image}:sha-${this.context.sha.substr(0, 7)}`);
+      }
+    }
+    return tags;
+  }
+
+  public labels(): Array<string> {
+    return [
+      `org.opencontainers.image.title=${this.repo.name || ''}`,
+      `org.opencontainers.image.description=${this.repo.description || ''}`,
+      `org.opencontainers.image.url=${this.repo.html_url || ''}`,
+      `org.opencontainers.image.source=${this.repo.clone_url || ''}`,
+      `org.opencontainers.image.version=${this.labelVersion() || ''}`,
+      `org.opencontainers.image.created=${new Date().toISOString()}`,
+      `org.opencontainers.image.revision=${this.context.sha || ''}`,
+      `org.opencontainers.image.licenses=${this.repo.license?.spdx_id || ''}`
+    ];
+  }
+
+  private static eventSchedule(image: string): Array<string> {
+    return [`${image}:nightly`];
+  }
+
+  private eventTag(image: string): Array<string> {
+    const tag = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
+    const version = semver.clean(tag);
+    if (version) {
+      return [`${image}:${version}`, `${image}:latest`];
+    }
+    return [`${image}:${tag}`];
+  }
+
+  private eventBranch(image: string): Array<string> {
+    const branch = this.context.ref.replace(/^refs\/heads\//g, '').replace(/\//g, '-');
+    if (this.inputs.tagEdge === branch) {
+      return [`${image}:edge`];
+    }
+    return [`${image}:${branch}`];
+  }
+
+  private eventPullRequest(image: string): Array<string> {
+    const pr = this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, '');
+    return [`${image}:pr-${pr}`];
+  }
+
+  private labelVersion(): string | undefined {
+    if (/schedule/.test(this.context.eventName)) {
+      return 'nightly';
+    } else if (/^refs\/tags\//.test(this.context.ref)) {
+      const tag = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
+      const sver = semver.clean(tag);
+      return sver ? sver : tag;
+    } else if (/^refs\/heads\//.test(this.context.ref)) {
+      const branch = this.context.ref.replace(/^refs\/heads\//g, '').replace(/\//g, '-');
+      return this.inputs.tagEdge === branch ? 'edge' : branch;
+    } else if (/^refs\/pull\//.test(this.context.ref)) {
+      const pr = this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, '');
+      return `pr-${pr}`;
+    }
+  }
+}
--- a/test/Dockerfile
+++ b/test/Dockerfile
@ -0,0 +1,3 @@
+FROM alpine
+
+RUN echo "Hello world!"
--- a/tsconfig.json
+++ b/tsconfig.json
@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "es6",
+    "module": "commonjs",
+    "lib": [
+      "es6",
+      "dom"
+    ],
+    "newLine": "lf",
+    "outDir": "./lib",
+    "rootDir": "./src",
+    "strict": true,
+    "noImplicitAny": false,
+    "esModuleInterop": false,
+    "resolveJsonModule": true,
+    "sourceMap": true
+  },
+  "exclude": ["node_modules", "**/*.test.ts"]
+}
--- a/yarn.lock
+++ b/yarn.lock