Merge pull request #439 from docker/dependabot/npm_and_yarn/actions/core-1.5.0

Bump @actions/core from 1.4.0 to 1.5.0

.github/ISSUE_TEMPLATE/bug_report.md

@@ -5,7 +5,7 @@ about: Create a report to help us improve
 
 ### Troubleshooting
 
-Before sumbitting a bug report please read the [Troubleshooting doc](https://github.com/docker/build-push-action/blob/master/TROUBLESHOOTING.md).
+Before submitting a bug report please read the [Troubleshooting doc](https://github.com/docker/build-push-action/blob/master/TROUBLESHOOTING.md).
 
 ### Behaviour
 

.github/dependabot.yml

@@ -5,8 +5,8 @@ updates:
     schedule:
       interval: "daily"
     labels:
-      - ":game_die: dependencies"
-      - ":robot: bot"
+      - "dependencies"
+      - "bot"
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
@@ -14,5 +14,5 @@ updates:
     allow:
       - dependency-type: "production"
     labels:
-      - ":game_die: dependencies"
-      - ":robot: bot"
+      - "dependencies"
+      - "bot"

.github/workflows/ci.yml

@@ -70,9 +70,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -133,9 +130,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -191,9 +185,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -207,6 +198,37 @@ jobs:
         uses: crazy-max/ghaction-dump-context@v1
 
   error:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Stop docker
+        run: |
+          sudo systemctl stop docker
+      -
+        name: Build
+        id: docker_build
+        continue-on-error: true
+        uses: ./
+        with:
+          context: ./test
+          file: ./test/Dockerfile
+      -
+        name: Check
+        run: |
+          echo "${{ toJson(steps.docker_build) }}"
+          if [ "${{ steps.docker_build.outcome }}" != "failure" ] || [ "${{ steps.docker_build.conclusion }}" != "success" ]; then
+            echo "::error::Should have failed"
+            exit 1
+          fi
+      -
+        name: Dump context
+        if: always()
+        uses: crazy-max/ghaction-dump-context@v1
+
+  error-buildx:
     runs-on: ubuntu-latest
     steps:
       -
@@ -361,9 +383,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -416,9 +435,6 @@ jobs:
         name: Inspect (1)
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:latest
-      -
-        name: Image digest (1)
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest (1)
         run: |
@@ -449,9 +465,6 @@ jobs:
         name: Inspect (2)
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:latest
-      -
-        name: Image digest (2)
-        run: echo ${{ steps.docker_build2.outputs.digest }}
       -
         name: Check digest (2)
         run: |
@@ -472,7 +485,7 @@ jobs:
         if: always()
         uses: crazy-max/ghaction-dump-context@v1
 
-  github-cache-first:
+  local-cache-first:
     runs-on: ubuntu-latest
     outputs:
       digest: ${{ steps.docker_build.outputs.digest }}
@@ -500,7 +513,7 @@ jobs:
         uses: actions/cache@v2
         with:
           path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
+          key: ${{ runner.os }}-buildx-local-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-buildx-ghcache-
       -
@@ -526,9 +539,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -541,9 +551,9 @@ jobs:
         if: always()
         uses: crazy-max/ghaction-dump-context@v1
 
-  github-cache-hit:
+  local-cache-hit:
     runs-on: ubuntu-latest
-    needs: github-cache-first
+    needs: local-cache-first
     services:
       registry:
         image: registry:2
@@ -569,7 +579,7 @@ jobs:
         id: cache
         with:
           path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
+          key: ${{ runner.os }}-buildx-local-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-buildx-ghcache-
       -
@@ -591,9 +601,6 @@ jobs:
         name: Inspect
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
       -
         name: Check digest
         run: |
@@ -604,8 +611,8 @@ jobs:
       -
         name: Compare digests
         run: |
-          echo Compare "${{ needs.github-cache-first.outputs.digest }}" with "${{ steps.docker_build.outputs.digest }}"
-          if [ "${{ needs.github-cache-first.outputs.digest }}" != "${{ steps.docker_build.outputs.digest }}" ]; then
+          echo Compare "${{ needs.local-cache-first.outputs.digest }}" with "${{ steps.docker_build.outputs.digest }}"
+          if [ "${{ needs.local-cache-first.outputs.digest }}" != "${{ steps.docker_build.outputs.digest }}" ]; then
             echo "::error::Digests should be identical"
             exit 1
           fi
@@ -616,3 +623,53 @@ jobs:
         name: Dump context
         if: always()
         uses: crazy-max/ghaction-dump-context@v1
+
+  github-cache:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        buildx_version:
+          - ""
+          - latest
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          version: ${{ matrix.buildx_version }}
+          driver-opts: |
+            network=host
+          buildkitd-flags: --debug
+      -
+        name: Build and push
+        uses: ./
+        with:
+          context: ./test
+          file: ./test/multi.Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            localhost:5000/name/app:latest
+            localhost:5000/name/app:1.0.0
+          cache-from: type=gha,scope=ci-${{ matrix.buildx_version }}
+          cache-to: type=gha,scope=ci-${{ matrix.buildx_version }}
+      -
+        name: Inspect
+        run: |
+          docker buildx imagetools inspect localhost:5000/name/app:1.0.0
+      -
+        name: Dump context
+        if: always()
+        uses: crazy-max/ghaction-dump-context@v1

.github/workflows/e2e.yml

@@ -59,7 +59,7 @@ jobs:
       -
         name: Docker meta
         id: meta
-        uses: crazy-max/ghaction-docker-meta@v2
+        uses: docker/metadata-action@v3
         with:
           images: ${{ matrix.slug }}
       -

.github/workflows/example.yml

@@ -29,7 +29,7 @@ jobs:
       -
         name: Docker meta
         id: meta
-        uses: crazy-max/ghaction-docker-meta@v2
+        uses: docker/metadata-action@v3
         with:
           images: ${{ env.DOCKER_IMAGE }}
           tags: |

.github/workflows/test.yml

@@ -27,6 +27,6 @@ jobs:
           targets: test
       -
         name: Upload coverage
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         with:
           file: ./coverage/clover.xml

.prettierrc.json

@@ -1,5 +1,5 @@
 {
-  "printWidth": 120,
+  "printWidth": 240,
   "tabWidth": 2,
   "useTabs": false,
   "semi": true,

README.md

@@ -31,11 +31,11 @@ ___
   * [Secrets](docs/advanced/secrets.md)
   * [Isolated builders](docs/advanced/isolated-builders.md)
   * [Push to multi-registries](docs/advanced/push-multi-registries.md)
+  * [Copy between registries](docs/advanced/copy-between-registries.md)  
   * [Cache](docs/advanced/cache.md)
-    * [Registry cache](docs/advanced/cache.md#registry-cache)
-    * [GitHub cache](docs/advanced/cache.md#github-cache)
   * [Local registry](docs/advanced/local-registry.md)
   * [Export image to Docker](docs/advanced/export-docker.md)
+  * [Share built image between jobs](docs/advanced/share-image-jobs.md)
   * [Handle tags and labels](docs/advanced/tags-labels.md)
   * [Update DockerHub repo description](docs/advanced/dockerhub-desc.md)
 * [Customizing](#customizing)
@@ -43,7 +43,6 @@ ___
   * [outputs](#outputs)
 * [Troubleshooting](#troubleshooting)
 * [Keep up-to-date with GitHub Dependabot](#keep-up-to-date-with-github-dependabot)
-* [Limitation](#limitation)
 
 ## Usage
 
@@ -52,7 +51,7 @@ By default, this action uses the [Git context](#git-context) so you don't need t
 done directly by buildkit. The git reference will be based on the [event that triggered your workflow](https://docs.github.com/en/actions/reference/events-that-trigger-workflows)
 and will result in the following context: `https://github.com/<owner>/<repo>.git#<ref>`.
 
-Be careful because **any file mutation in the steps that precede the build step will be ignored** since
+Be careful because **any file mutation in the steps that precede the build step will be ignored, including processing of the `.dockerignore` file** since
 the context is based on the git reference. However, you can use the [Path context](#path-context) using the
 [`context` input](#inputs) alongside the [`actions/checkout`](https://github.com/actions/checkout/) action to remove
 this restriction.
@@ -99,9 +98,6 @@ jobs:
         with:
           push: true
           tags: user/app:latest
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
 ```
 
 Building from the current repository automatically uses the [GitHub Token](https://help.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token)
@@ -120,9 +116,6 @@ a [secret](docs/advanced/secrets.md) named `GIT_AUTH_TOKEN` to be able to authen
             GIT_AUTH_TOKEN=${{ secrets.MYTOKEN }}
 ```
 
-> :warning: Subdir for Git context is not yet supported ([moby/buildkit#1684](https://github.com/moby/buildkit/issues/1684))
-> but you can use the [path context](#path-context) in the meantime. More info on [Docker docs website](https://docs.docker.com/engine/reference/commandline/build/#git-repositories).
-
 ### Path context
 
 ```yaml
@@ -167,11 +160,11 @@ jobs:
 * [Secrets](docs/advanced/secrets.md)
 * [Isolated builders](docs/advanced/isolated-builders.md)
 * [Push to multi-registries](docs/advanced/push-multi-registries.md)
+* [Copy between registries](docs/advanced/copy-between-registries.md)
 * [Cache](docs/advanced/cache.md)
-  * [Registry cache](docs/advanced/cache.md#registry-cache)
-  * [GitHub cache](docs/advanced/cache.md#github-cache)
 * [Local registry](docs/advanced/local-registry.md)
 * [Export image to Docker](docs/advanced/export-docker.md)
+* [Share built image between jobs](docs/advanced/share-image-jobs.md)
 * [Handle tags and labels](docs/advanced/tags-labels.md)
 * [Update DockerHub repo description](docs/advanced/dockerhub-desc.md)
 
@@ -220,9 +213,10 @@ Following inputs can be used as `step.with` keys
 
 Following outputs are available
 
-| Name          | Type    | Description                           |
-|---------------|---------|---------------------------------------|
-| `digest`      | String  | Image content-addressable identifier also called a digest |
+| Name              | Type    | Description                           |
+|-------------------|---------|---------------------------------------|
+| `digest`          | String  | Image content-addressable identifier also called a digest |
+| `metadata`        | JSON    | Build result metadata |
 
 ## Troubleshooting
 
@@ -243,7 +237,3 @@ updates:
     schedule:
       interval: "daily"
 ```
-
-## Limitation
-
-This action is only available for Linux [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources).

TROUBLESHOOTING.md

@@ -1,6 +1,9 @@
 # Troubleshooting
 
 * [Cannot push to a registry](#cannot-push-to-a-registry)
+  * [BuildKit container logs](#buildkit-container-logs)
+  * [With containerd](#with-containerd)
+* [`repository name must be lowercase`](#repository-name-must-be-lowercase)
 
 ## Cannot push to a registry
 
@@ -12,23 +15,22 @@ While pushing to a registry, you may encounter these kinds of issues:
 * `failed commit on ref "manifest-sha256:...": unexpected status: 401 Unauthorized`
 * `unexpected response: 401 Unauthorized`
 
-These issues are not directly related to this action but are rather linked to [buildx](https://github.com/docker/buildx),
-[buildkit](https://github.com/moby/buildkit), [containerd](https://github.com/containerd/containerd) or the registry
-on which you're pushing your image. The quality of error message depends on the registry and are usually not very informative.
+These issues are not directly related to this action but are rather linked to
+[buildx](https://github.com/docker/buildx), [buildkit](https://github.com/moby/buildkit),
+[containerd](https://github.com/containerd/containerd) or the registry on which
+you're pushing your image. The quality of error message depends on the registry
+and are usually not very informative.
 
-To help you solve this, you should first enable debugging in the
-[setup-buildx action step](https://github.com/docker/setup-buildx-action):
+### BuildKit container logs
 
-```yaml
-  -
-    name: Set up Docker Buildx
-    uses: docker/setup-buildx-action@v1
-    with:
-      buildkitd-flags: --debug
-```
+To help you solve this, you have to [enable debugging in the setup-buildx](https://github.com/docker/setup-buildx-action#buildkit-container-logs)
+action step and attach BuildKit container logs to your issue.
 
-Next you can test pushing with [containerd action](https://github.com/crazy-max/ghaction-setup-containerd) using the
-following workflow. If it works then open an issue on [buildkit](https://github.com/moby/buildkit) repository.
+### With containerd
+
+Next you can test pushing with [containerd action](https://github.com/crazy-max/ghaction-setup-containerd)
+using the following workflow. If it works then open an issue on [buildkit](https://github.com/moby/buildkit)
+repository.
 
 ```yaml
 name: containerd
@@ -71,3 +73,47 @@ jobs:
         run: |
           sudo ctr --debug i push --user "${{ secrets.DOCKER_USERNAME }}:${{ secrets.DOCKER_PASSWORD }}" docker.io/user/app:latest
 ```
+
+## `repository name must be lowercase`
+
+You may encounter this issue if you're using `github.repository` as a repo slug
+in your tag:
+
+```
+#6 exporting to image
+#6 exporting layers
+#6 exporting layers 1.2s done
+#6 exporting manifest sha256:b47f7dfb97b89ccd5de553af3c8cd94c4795884cbe5693e93946b1d95a7b1d12 0.0s done
+#6 exporting config sha256:995e93fab8196893192f08a38deea6769dc4d98f86cf705eccc24ec96a3e271c 0.0s done
+#6 ERROR: invalid reference format: repository name must be lowercase
+------
+ > exporting to image:
+------
+error: failed to solve: invalid reference format: repository name must be lowercase
+```
+
+or a cache reference:
+
+```
+#10 importing cache manifest from ghcr.io/My-Org/repo:main
+#10 ERROR: invalid reference format: repository name must be lowercase
+```
+
+To fix this issue you can use our [metadata action](https://github.com/docker/metadata-action)
+to generate sanitized tags, or a dedicated step to sanitize the slug:
+
+```yaml
+- name: Sanitize repo slug
+  uses: actions/github-script@v4
+  id: repo_slug
+  with:
+    result-encoding: string
+    script: return `ghcr.io/${github.repository.toLowerCase()}`
+
+- name: Build and push
+  uses: docker/build-push-action@v2
+  with:
+    context: .
+    push: true
+    tags: ${{ steps.repo_slug.outputs.result }}:latest
+```

UPGRADE.md

@@ -101,25 +101,17 @@ steps:
     name: Checkout
     uses: actions/checkout@v2
   -
-    name: Prepare
-    id: prep
-    run: |
-      DOCKER_IMAGE=myorg/myrepository
-      VERSION=edge
-      if [[ $GITHUB_REF == refs/tags/* ]]; then
-        VERSION=${GITHUB_REF#refs/tags/}
-      elif [[ $GITHUB_REF == refs/heads/* ]]; then
-        VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
-      elif [[ $GITHUB_REF == refs/pull/* ]]; then
-        VERSION=pr-${{ github.event.number }}
-      fi
-      TAGS="${DOCKER_IMAGE}:${VERSION}"
-      if [ "${{ github.event_name }}" = "push" ]; then
-        TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
-      fi
-      echo ::set-output name=version::${VERSION}
-      echo ::set-output name=tags::${TAGS}
-      echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+    name: Docker meta
+    id: meta
+    uses: docker/metadata-action@v3
+    with:
+      images: |
+        myorg/myrepository
+      tags: |
+        type=ref,event=branch
+        type=ref,event=pr
+        type=semver,pattern={{version}}
+        type=sha
   -
     name: Set up Docker Buildx
     uses: docker/setup-buildx-action@v1
@@ -136,12 +128,6 @@ steps:
     with:
       context: .
       push: ${{ github.event_name != 'pull_request' }}
-      tags: ${{ steps.prep.outputs.tags }}
-      labels: |
-        org.opencontainers.image.source=${{ github.event.repository.html_url }}
-        org.opencontainers.image.created=${{ steps.prep.outputs.created }}
-        org.opencontainers.image.revision=${{ github.sha }}
+      tags: ${{ steps.meta.outputs.tags }}
+      labels: ${{ steps.meta.outputs.labels }}
 ```
-
-> You can also use the [Docker meta action to handle tags and labels](docs/advanced/tags-labels.md) based on GitHub
-> actions events and Git metadata.

__tests__/buildx.test.ts

@@ -1,13 +1,17 @@
 import * as fs from 'fs';
 import * as path from 'path';
 import * as semver from 'semver';
+import * as exec from '@actions/exec';
 
 import * as buildx from '../src/buildx';
 import * as context from '../src/context';
-import * as docker from '../src/docker';
 
 const tmpNameSync = path.join('/tmp/.docker-build-push-jest', '.tmpname-jest').split(path.sep).join(path.posix.sep);
 const digest = 'sha256:bfb45ab72e46908183546477a08f8867fc40cebadd00af54b071b097aed127a9';
+const metadata = `{
+  "containerimage.config.digest": "sha256:059b68a595b22564a1cbc167af369349fdc2ecc1f7bc092c2235cbf601a795fd",
+  "containerimage.digest": "sha256:b09b9482c72371486bb2c1d2c2a2633ed1d0b8389e12c8d52b9e052725c0c83c"
+}`;
 
 jest.spyOn(context, 'tmpDir').mockImplementation((): string => {
   const tmpDir = path.join('/tmp/.docker-build-push-jest').split(path.sep).join(path.posix.sep);
@@ -32,6 +36,17 @@ describe('getImageID', () => {
   });
 });
 
+describe('getMetadata', () => {
+  it('matches', async () => {
+    const metadataFile = await buildx.getMetadataFile();
+    console.log(`metadataFile: ${metadataFile}`);
+    await fs.writeFileSync(metadataFile, metadata);
+    const expected = await buildx.getMetadata();
+    console.log(`metadata: ${expected}`);
+    expect(expected).toEqual(metadata);
+  });
+});
+
 describe('isLocalOrTarExporter', () => {
   // prettier-ignore
   test.each([
@@ -92,9 +107,26 @@ describe('isLocalOrTarExporter', () => {
   );
 });
 
+describe('isAvailable', () => {
+  const execSpy: jest.SpyInstance = jest.spyOn(exec, 'getExecOutput');
+  buildx.isAvailable();
+
+  expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx'], {
+    silent: true,
+    ignoreReturnCode: true
+  });
+});
+
 describe('getVersion', () => {
   async function isDaemonRunning() {
-    return await docker.isDaemonRunning();
+    return await exec
+      .getExecOutput(`docker`, ['version', '--format', '{{.Server.Os}}'], {
+        ignoreReturnCode: true,
+        silent: true
+      })
+      .then(res => {
+        return !res.stdout.includes(' ') && res.exitCode == 0;
+      });
   }
   (isDaemonRunning() ? it : it.skip)(
     'valid',
@@ -111,9 +143,20 @@ describe('parseVersion', () => {
   test.each([
     ['github.com/docker/buildx 0.4.1+azure bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
     ['github.com/docker/buildx v0.4.1 bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
-    ['github.com/docker/buildx v0.4.2 fb7b670b764764dc4716df3eba07ffdae4cc47b2', '0.4.2']
+    ['github.com/docker/buildx v0.4.2 fb7b670b764764dc4716df3eba07ffdae4cc47b2', '0.4.2'],
+    ['github.com/docker/buildx f117971 f11797113e5a9b86bd976329c5dbb8a8bfdfadfa', 'f117971']
   ])('given %p', async (stdout, expected) => {
-    expect(await buildx.parseVersion(stdout)).toEqual(expected);
+    expect(buildx.parseVersion(stdout)).toEqual(expected);
+  });
+});
+
+describe('satisfies', () => {
+  test.each([
+    ['0.4.1', '>=0.3.2', true],
+    ['bda4882a65349ca359216b135896bddc1d92461c', '>0.1.0', false],
+    ['f117971', '>0.6.0', true]
+  ])('given %p', async (version, range, expected) => {
+    expect(buildx.satisfies(version, range)).toBe(expected);
   });
 });
 
@@ -125,13 +168,7 @@ describe('getSecret', () => {
     ['aaaaaaaa', false, '', '', true],
     ['aaaaaaaa=', false, '', '', true],
     ['=bbbbbbb', false, '', '', true],
-    [
-      `foo=${path.join(__dirname, 'fixtures', 'secret.txt').split(path.sep).join(path.posix.sep)}`,
-      true,
-      'foo',
-      'bar',
-      false
-    ],
+    [`foo=${path.join(__dirname, 'fixtures', 'secret.txt').split(path.sep).join(path.posix.sep)}`, true, 'foo', 'bar', false],
     [`notfound=secret`, true, '', '', true]
   ])('given %p key and %p secret', async (kvp, file, exKey, exValue, invalid) => {
     try {

__tests__/context.test.ts

@@ -1,4 +1,5 @@
 import * as fs from 'fs';
+import * as os from 'os';
 import * as path from 'path';
 
 import * as context from '../src/context';
@@ -111,7 +112,7 @@ PejgXO0uIRolYQ3sz2tMGhx1MfBqH64=
 -----END PGP PRIVATE KEY BLOCK-----`;
 
 jest.spyOn(context, 'defaultContext').mockImplementation((): string => {
-  return 'https://github.com/docker/build-push-action.git#test-jest';
+  return 'https://github.com/docker/build-push-action.git#refs/heads/test-jest';
 });
 
 jest.spyOn(context, 'tmpDir').mockImplementation((): string => {
@@ -142,6 +143,10 @@ describe('getArgs', () => {
       '0.4.1',
       new Map<string, string>([
         ['context', '.'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -154,6 +159,10 @@ describe('getArgs', () => {
       '0.4.2',
       new Map<string, string>([
         ['build-args', 'MY_ARG=val1,val2,val3\nARG=val'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -161,13 +170,17 @@ describe('getArgs', () => {
         '--build-arg', 'MY_ARG=val1,val2,val3',
         '--build-arg', 'ARG=val',
         '--iidfile', '/tmp/.docker-build-push-jest/iidfile',
-        'https://github.com/docker/build-push-action.git#test-jest'
+        'https://github.com/docker/build-push-action.git#refs/heads/test-jest'
       ]
     ],
     [
       '0.4.2',
       new Map<string, string>([
         ['tags', 'name/app:7.4, name/app:latest'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -175,7 +188,7 @@ describe('getArgs', () => {
         '--tag', 'name/app:7.4',
         '--tag', 'name/app:latest',
         '--iidfile', '/tmp/.docker-build-push-jest/iidfile',
-        'https://github.com/docker/build-push-action.git#test-jest'
+        'https://github.com/docker/build-push-action.git#refs/heads/test-jest'
       ]
     ],
     [
@@ -183,7 +196,11 @@ describe('getArgs', () => {
       new Map<string, string>([
         ['context', '.'],
         ['labels', 'org.opencontainers.image.title=buildkit\norg.opencontainers.image.description=concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit'],
-        ['outputs', 'type=local,dest=./release-out']
+        ['outputs', 'type=local,dest=./release-out'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -198,7 +215,11 @@ describe('getArgs', () => {
       '0.4.1',
       new Map<string, string>([
         ['context', '.'],
-        ['platforms', 'linux/amd64,linux/arm64']
+        ['platforms', 'linux/amd64,linux/arm64'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -210,7 +231,11 @@ describe('getArgs', () => {
     [
       '0.4.1',
       new Map<string, string>([
-        ['context', '.']
+        ['context', '.'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -224,6 +249,10 @@ describe('getArgs', () => {
       new Map<string, string>([
         ['context', '.'],
         ['secrets', 'GIT_AUTH_TOKEN=abcdefghijklmno=0123456789'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -237,26 +266,33 @@ describe('getArgs', () => {
       '0.4.2',
       new Map<string, string>([
         ['github-token', 'abcdefghijklmno0123456789'],
-        ['outputs', '.']
+        ['outputs', '.'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
         'build',
         '--output', '.',
         '--secret', 'id=GIT_AUTH_TOKEN,src=/tmp/.docker-build-push-jest/.tmpname-jest',
-        'https://github.com/docker/build-push-action.git#test-jest'
+        'https://github.com/docker/build-push-action.git#refs/heads/test-jest'
       ]
     ],
     [
       '0.4.2',
       new Map<string, string>([
-        ['context', 'https://github.com/docker/build-push-action.git#heads/master'],
+        ['context', 'https://github.com/docker/build-push-action.git#refs/heads/master'],
         ['tag', 'localhost:5000/name/app:latest'],
         ['platforms', 'linux/amd64,linux/arm64'],
         ['secrets', 'GIT_AUTH_TOKEN=abcdefghijklmno=0123456789'],
         ['file', './test/Dockerfile'],
         ['builder', 'builder-git-context-2'],
-        ['push', 'true']
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'true'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -267,13 +303,13 @@ describe('getArgs', () => {
         '--file', './test/Dockerfile',
         '--builder', 'builder-git-context-2',
         '--push',
-        'https://github.com/docker/build-push-action.git#heads/master'
+        'https://github.com/docker/build-push-action.git#refs/heads/master'
       ]
     ],
     [
       '0.4.2',
       new Map<string, string>([
-        ['context', 'https://github.com/docker/build-push-action.git#heads/master'],
+        ['context', 'https://github.com/docker/build-push-action.git#refs/heads/master'],
         ['tag', 'localhost:5000/name/app:latest'],
         ['platforms', 'linux/amd64,linux/arm64'],
         ['secrets', `GIT_AUTH_TOKEN=abcdefghi,jklmno=0123456789
@@ -287,7 +323,10 @@ bbbb
 ccc"`],
         ['file', './test/Dockerfile'],
         ['builder', 'builder-git-context-2'],
-        ['push', 'true']
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'true'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -301,13 +340,13 @@ ccc"`],
         '--file', './test/Dockerfile',
         '--builder', 'builder-git-context-2',
         '--push',
-        'https://github.com/docker/build-push-action.git#heads/master'
+        'https://github.com/docker/build-push-action.git#refs/heads/master'
       ]
     ],
     [
       '0.4.2',
       new Map<string, string>([
-        ['context', 'https://github.com/docker/build-push-action.git#heads/master'],
+        ['context', 'https://github.com/docker/build-push-action.git#refs/heads/master'],
         ['tag', 'localhost:5000/name/app:latest'],
         ['platforms', 'linux/amd64,linux/arm64'],
         ['secrets', `GIT_AUTH_TOKEN=abcdefghi,jklmno=0123456789
@@ -321,7 +360,10 @@ bbbb
 ccc`],
         ['file', './test/Dockerfile'],
         ['builder', 'builder-git-context-2'],
-        ['push', 'true']
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'true'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -335,19 +377,22 @@ ccc`],
         '--file', './test/Dockerfile',
         '--builder', 'builder-git-context-2',
         '--push',
-        'https://github.com/docker/build-push-action.git#heads/master'
+        'https://github.com/docker/build-push-action.git#refs/heads/master'
       ]
     ],
     [
       '0.5.1',
       new Map<string, string>([
-        ['context', 'https://github.com/docker/build-push-action.git#heads/master'],
+        ['context', 'https://github.com/docker/build-push-action.git#refs/heads/master'],
         ['tag', 'localhost:5000/name/app:latest'],
         ['secret-files', `MY_SECRET=${path.join(__dirname, 'fixtures', 'secret.txt').split(path.sep).join(path.posix.sep)}`],
         ['file', './test/Dockerfile'],
         ['builder', 'builder-git-context-2'],
         ['network', 'host'],
-        ['push', 'true']
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'true'],
+        ['pull', 'false']
       ]),
       [
         'buildx',
@@ -358,9 +403,52 @@ ccc`],
         '--builder', 'builder-git-context-2',
         '--network', 'host',
         '--push',
-        'https://github.com/docker/build-push-action.git#heads/master'
+        'https://github.com/docker/build-push-action.git#refs/heads/master'
       ]
-    ]
+    ],
+    [
+      '0.4.2',
+      new Map<string, string>([
+        ['context', '.'],
+        ['labels', 'org.opencontainers.image.title=filter_results_top_n\norg.opencontainers.image.description=Reference implementation of operation "filter results (top-n)"'],
+        ['outputs', 'type=local,dest=./release-out'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'false'],
+        ['pull', 'false']
+      ]),
+      [
+        'buildx',
+        'build',
+        '--label', 'org.opencontainers.image.title=filter_results_top_n',
+        '--label', 'org.opencontainers.image.description=Reference implementation of operation "filter results (top-n)"',
+        '--output', 'type=local,dest=./release-out',
+        '.'
+      ]
+    ],
+    [
+      '0.6.0',
+      new Map<string, string>([
+        ['context', '.'],
+        ['tag', 'localhost:5000/name/app:latest'],
+        ['file', './test/Dockerfile'],
+        ['network', 'host'],
+        ['load', 'false'],
+        ['no-cache', 'false'],
+        ['push', 'true'],
+        ['pull', 'false']
+      ]),
+      [
+        'buildx',
+        'build',
+        '--iidfile', '/tmp/.docker-build-push-jest/iidfile',
+        '--metadata-file', '/tmp/.docker-build-push-jest/metadata-file',
+        '--file', './test/Dockerfile',
+        '--network', 'host',
+        '--push',
+        '.'
+      ]
+    ],
   ])(
     'given %p with %p as inputs, returns %p',
     async (buildxVersion: string, inputs: Map<string, any>, expected: Array<string>) => {
@@ -500,13 +588,7 @@ FOO=bar`
     );
     const res = await context.getInputList('secrets', true);
     console.log(res);
-    expect(res).toEqual([
-      'GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789',
-      'MYSECRET=aaaaaaaa',
-      'bbbbbbb',
-      'ccccccccc',
-      'FOO=bar'
-    ]);
+    expect(res).toEqual(['GIT_AUTH_TOKEN=abcdefgh,ijklmno=0123456789', 'MYSECRET=aaaaaaaa', 'bbbbbbb', 'ccccccccc', 'FOO=bar']);
   });
 
   it('large multiline values', async () => {
@@ -554,7 +636,28 @@ describe('asyncForEach', () => {
   });
 });
 
-// See: https://github.com/actions/toolkit/blob/master/packages/core/src/core.ts#L67
+describe('setOutput', () => {
+  beforeEach(() => {
+    process.stdout.write = jest.fn();
+  });
+
+  it('setOutput produces the correct command', () => {
+    context.setOutput('some output', 'some value');
+    assertWriteCalls([`::set-output name=some output::some value${os.EOL}`]);
+  });
+
+  it('setOutput handles bools', () => {
+    context.setOutput('some output', false);
+    assertWriteCalls([`::set-output name=some output::false${os.EOL}`]);
+  });
+
+  it('setOutput handles numbers', () => {
+    context.setOutput('some output', 1.01);
+    assertWriteCalls([`::set-output name=some output::1.01${os.EOL}`]);
+  });
+});
+
+// See: https://github.com/actions/toolkit/blob/a1b068ec31a042ff1e10a522d8fdf0b8869d53ca/packages/core/src/core.ts#L89
 function getInputName(name: string): string {
   return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`;
 }
@@ -562,3 +665,11 @@ function getInputName(name: string): string {
 function setInput(name: string, value: string): void {
   process.env[getInputName(name)] = value;
 }
+
+// Assert that process.stdout.write calls called only with the given arguments.
+function assertWriteCalls(calls: string[]): void {
+  expect(process.stdout.write).toHaveBeenCalledTimes(calls.length);
+  for (let i = 0; i < calls.length; i++) {
+    expect(process.stdout.write).toHaveBeenNthCalledWith(i + 1, calls[i]);
+  }
+}

action.yml

@@ -79,6 +79,8 @@ inputs:
 outputs:
   digest:
     description: 'Image content-addressable identifier also called a digest'
+  metadata:
+    description: 'Build result metadata'
 
 runs:
   using: 'node12'

codecov.yml

@@ -0,0 +1,3 @@
+comment: false
+github_checks:
+  annotations: false

docs/advanced/cache.md

@@ -1,13 +1,18 @@
 # Cache
 
+* [Inline cache](#inline-cache)
 * [Registry cache](#registry-cache)
 * [GitHub cache](#github-cache)
+  * [Cache backend API](#cache-backend-api)
+  * [Local cache](#local-cache)
 
-> More info about buildx cache: https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-from
+> More info about cache on [BuildKit](https://github.com/moby/buildkit#export-cache) and [Buildx](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-from) repositories.
 
-## Registry cache
+## Inline cache
 
-You can import/export cache from a cache manifest or (special) image configuration on the registry.
+In most case you want to use the [`type=inline` cache exporter](https://github.com/moby/buildkit#inline-push-image-and-cache-together).
+However, note that the `inline` cache exporter only supports `min` cache mode. To enable `max` cache mode, push the
+image and the cache separately by using the `registry` cache exporter as shown in the [next example](#registry-cache).
 
 ```yaml
 name: ci
@@ -44,16 +49,104 @@ jobs:
           cache-to: type=inline
 ```
 
+## Registry cache
+
+You can import/export cache from a cache manifest or (special) image configuration on the registry with the
+[`type=registry` cache exporter](https://github.com/moby/buildkit/tree/master#registry-push-image-and-cache-separately).
+
+```yaml
+name: ci
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        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: .
+          push: true
+          tags: user/app:latest
+          cache-from: type=registry,ref=user/app:buildcache
+          cache-to: type=registry,ref=user/app:buildcache,mode=max
+```
+
 ## GitHub cache
 
+### Cache backend API
+
+> :test_tube: This cache exporter is considered EXPERIMENTAL until further notice. Please provide feedback on
+> [BuildKit repository](https://github.com/moby/buildkit) if you encounter any issues.
+
+Since [buildx 0.6.0](https://github.com/docker/buildx/releases/tag/v0.6.0) and [BuildKit 0.9.0](https://github.com/moby/buildkit/releases/tag/v0.9.0),
+you can use the [`type=gha` cache exporter](https://github.com/moby/buildkit/tree/master#github-actions-cache-experimental).
+
+GitHub Actions cache exporter backend uses the [GitHub Cache API](https://github.com/tonistiigi/go-actions-cache/blob/master/api.md)
+to fetch and upload cache blobs. That's why this type of cache should be exclusively used in a GitHub Action workflow
+as the `url` (`$ACTIONS_CACHE_URL`) and `token` (`$ACTIONS_RUNTIME_TOKEN`) attributes are populated when a workflow
+is started.
+
+```yaml
+name: ci
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        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: .
+          push: true
+          tags: user/app:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+```
+
+### Local cache
+
 > :warning: At the moment caches are copied over the existing cache so it [keeps growing](https://github.com/docker/build-push-action/issues/252).
 > The `Move cache` step is used as a temporary fix (see https://github.com/moby/buildkit/issues/1896).
 
-> :rocket: There is a new cache backend using GitHub cache being developed that will lighten your workflow.
-> More info: https://github.com/docker/buildx/pull/535
-
-You can leverage [GitHub cache](https://docs.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows)
-using [actions/cache](https://github.com/actions/cache) with this action:
+You can also leverage [GitHub cache](https://docs.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows)
+using [actions/cache](https://github.com/actions/cache) and [`type=local` cache exporter](https://github.com/moby/buildkit#local-directory-1)
+with this action:
 
 ```yaml
 name: ci
@@ -95,7 +188,7 @@ jobs:
           push: true
           tags: user/app:latest
           cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache-new
+          cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max
       -
         # Temp fix
         # https://github.com/docker/build-push-action/issues/252

docs/advanced/copy-between-registries.md

@@ -0,0 +1,73 @@
+# Copy images between registries
+
+Multi-platform images built using buildx can be copied from one registry to another without
+changing the image SHA using the [tag-push-action](https://github.com/akhilerm/tag-push-action).
+
+The following workflow will first push the image to dockerhub, run some tests using the images
+and then push to quay and ghcr
+
+```yaml
+name: ci
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - 
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - # quay and ghcr logins for pushing image after testing
+        name: Login to Quay Registry
+        uses: docker/login-action@v1 
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_USERNAME }}
+          password: ${{ secrets.QUAY_TOKEN }}
+      -
+        name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Login to DockerHub
+        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: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            user/app:latest
+            user/app:1.0.0
+      - # run tests using image from docker hub
+        name: Run Tests
+        run: make tests
+      - # copy multiplatform image from dockerhub to quay and ghcr
+        name: Push Image to multiple registries
+        uses: akhilerm/tag-push-action@v1.0.0
+        with:
+          src: docker.io/user/app:1.0.0
+          dst: |
+            quay.io/user/app:latest
+            quay.io/user/app:1.0.0
+            ghcr.io/user/app:latest
+            ghcr.io/user/app:1.0.0
+```

docs/advanced/share-image-jobs.md

@@ -0,0 +1,58 @@
+# Share built image between jobs
+
+As each job is isolated in its own runner you cannot use your built image between jobs (except for [self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners)).
+However, you can [pass data between jobs in a workflow](https://docs.github.com/en/actions/guides/storing-workflow-data-as-artifacts#passing-data-between-jobs-in-a-workflow)
+using the [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact)
+actions:
+
+```yaml
+name: ci
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Build and export
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          tags: myimage:latest
+          outputs: type=docker,dest=/tmp/myimage.tar
+      -
+        name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: myimage
+          path: /tmp/myimage.tar
+
+  use:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Download artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: myimage
+          path: /tmp
+      -
+        name: Load image
+        run: |
+          docker load --input /tmp/myimage.tar
+          docker image ls -a
+```

docs/advanced/tags-labels.md

@@ -2,7 +2,7 @@
 
 If you come from [`v1`](https://github.com/docker/build-push-action/tree/releases/v1#readme) and want an
 "automatic" tag management and [OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/master/annotations.md)
-for labels, you can do it in a dedicated step. The following workflow will use the [Docker meta action](https://github.com/crazy-max/ghaction-docker-meta)
+for labels, you can do it in a dedicated step. The following workflow will use the [Docker metadata action](https://github.com/docker/metadata-action)
 to handle tags and labels based on GitHub actions events and Git metadata.
 
 ```yaml
@@ -30,7 +30,7 @@ jobs:
       -
         name: Docker meta
         id: meta
-        uses: crazy-max/ghaction-docker-meta@v2
+        uses: docker/metadata-action@v3
         with:
           # list of Docker images to use as base name for tags
           images: |

hack/test.Dockerfile

@@ -1,5 +1,10 @@
 # syntax=docker/dockerfile:1.2
 ARG NODE_VERSION
+ARG DOCKER_VERSION=20.10.7
+ARG BUILDX_VERSION=0.6.0
+
+FROM docker:${DOCKER_VERSION} as docker
+FROM docker/buildx-bin:${BUILDX_VERSION} as buildx
 
 FROM node:${NODE_VERSION}-alpine AS base
 RUN apk add --no-cache git
@@ -15,8 +20,8 @@ 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 \
-  --mount=type=bind,from=crazymax/docker,source=/usr/libexec/docker/cli-plugins/docker-buildx,target=/usr/libexec/docker/cli-plugins/docker-buildx \
-  --mount=type=bind,from=crazymax/docker,source=/usr/local/bin/docker,target=/usr/bin/docker \
+  --mount=type=bind,from=docker,source=/usr/local/bin/docker,target=/usr/bin/docker \
+  --mount=type=bind,from=buildx,source=/buildx,target=/usr/libexec/docker/cli-plugins/docker-buildx \
   yarn run test --coverageDirectory=/tmp/coverage
 
 FROM scratch AS test-coverage

package.json

@@ -28,26 +28,26 @@
   ],
   "license": "Apache-2.0",
   "dependencies": {
-    "@actions/core": "^1.2.6",
-    "@actions/exec": "^1.0.4",
-    "@actions/github": "^4.0.0",
-    "csv-parse": "^4.15.3",
+    "@actions/core": "^1.5.0",
+    "@actions/exec": "^1.1.0",
+    "@actions/github": "^5.0.0",
+    "csv-parse": "^4.16.0",
     "semver": "^7.3.5",
     "tmp": "^0.2.1"
   },
   "devDependencies": {
     "@types/csv-parse": "^1.2.2",
-    "@types/jest": "^26.0.3",
-    "@types/node": "^14.0.14",
+    "@types/jest": "^26.0.23",
+    "@types/node": "^14.17.4",
     "@types/tmp": "^0.2.0",
-    "@vercel/ncc": "^0.23.0",
-    "dotenv": "^8.2.0",
-    "jest": "^26.1.0",
-    "jest-circus": "^26.1.0",
-    "jest-runtime": "^26.1.0",
-    "prettier": "^2.0.5",
-    "ts-jest": "^26.1.1",
-    "typescript": "^3.9.5",
+    "@vercel/ncc": "^0.28.6",
+    "dotenv": "^8.6.0",
+    "jest": "^26.6.3",
+    "jest-circus": "^26.6.3",
+    "jest-runtime": "^26.6.3",
+    "prettier": "^2.3.1",
+    "ts-jest": "^26.5.6",
+    "typescript": "^4.3.4",
     "typescript-formatter": "^7.2.2"
   }
 }

src/buildx.ts

@@ -2,9 +2,9 @@ import csvparse from 'csv-parse/lib/sync';
 import fs from 'fs';
 import path from 'path';
 import * as semver from 'semver';
+import * as exec from '@actions/exec';
 
 import * as context from './context';
-import * as exec from './exec';
 
 export async function getImageIDFile(): Promise<string> {
   return path.join(context.tmpDir(), 'iidfile').split(path.sep).join(path.posix.sep);
@@ -18,6 +18,18 @@ export async function getImageID(): Promise<string | undefined> {
   return fs.readFileSync(iidFile, {encoding: 'utf-8'});
 }
 
+export async function getMetadataFile(): Promise<string> {
+  return path.join(context.tmpDir(), 'metadata-file').split(path.sep).join(path.posix.sep);
+}
+
+export async function getMetadata(): Promise<string | undefined> {
+  const metadataFile = await getMetadataFile();
+  if (!fs.existsSync(metadataFile)) {
+    return undefined;
+  }
+  return fs.readFileSync(metadataFile, {encoding: 'utf-8'});
+}
+
 export async function getSecretString(kvp: string): Promise<string> {
   return getSecret(kvp, false);
 }
@@ -80,27 +92,41 @@ export function hasGitAuthToken(secrets: string[]): Boolean {
 }
 
 export async function isAvailable(): Promise<Boolean> {
-  return await exec.exec(`docker`, ['buildx'], true).then(res => {
-    if (res.stderr != '' && !res.success) {
-      return false;
-    }
-    return res.success;
-  });
+  return await exec
+    .getExecOutput('docker', ['buildx'], {
+      ignoreReturnCode: true,
+      silent: true
+    })
+    .then(res => {
+      if (res.stderr.length > 0 && res.exitCode != 0) {
+        return false;
+      }
+      return res.exitCode == 0;
+    });
 }
 
 export async function getVersion(): Promise<string> {
-  return await exec.exec(`docker`, ['buildx', 'version'], true).then(res => {
-    if (res.stderr != '' && !res.success) {
-      throw new Error(res.stderr);
-    }
-    return parseVersion(res.stdout);
-  });
+  return await exec
+    .getExecOutput('docker', ['buildx', 'version'], {
+      ignoreReturnCode: true,
+      silent: true
+    })
+    .then(res => {
+      if (res.stderr.length > 0 && res.exitCode != 0) {
+        throw new Error(res.stderr.trim());
+      }
+      return parseVersion(res.stdout.trim());
+    });
 }
 
-export async function parseVersion(stdout: string): Promise<string> {
-  const matches = /\sv?([0-9.]+)/.exec(stdout);
+export function parseVersion(stdout: string): string {
+  const matches = /\sv?([0-9a-f]{7}|[0-9.]+)/.exec(stdout);
   if (!matches) {
-    throw new Error(`Cannot parse Buildx version`);
+    throw new Error(`Cannot parse buildx version`);
   }
-  return semver.clean(matches[1]);
+  return matches[1];
+}
+
+export function satisfies(version: string, range: string): boolean {
+  return semver.satisfies(version, range) || /^[0-9a-f]{7}$/.exec(version) !== null;
 }

src/context.ts

@@ -2,10 +2,10 @@ import csvparse from 'csv-parse/lib/sync';
 import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
-import * as semver from 'semver';
 import * as tmp from 'tmp';
 
 import * as core from '@actions/core';
+import {issueCommand} from '@actions/core/lib/command';
 import * as github from '@actions/github';
 
 import * as buildx from './buildx';
@@ -38,9 +38,14 @@ export interface Inputs {
 
 export function defaultContext(): string {
   if (!_defaultContext) {
-    _defaultContext = `${process.env.GITHUB_SERVER_URL || 'https://github.com'}/${github.context.repo.owner}/${
-      github.context.repo.repo
-    }.git#${github.context?.ref?.replace(/^refs\//, '')}`;
+    let ref = github.context.ref;
+    if (github.context.sha && ref && !ref.startsWith('refs/')) {
+      ref = `refs/heads/${github.context.ref}`;
+    }
+    if (github.context.sha && !ref.startsWith(`refs/pull/`)) {
+      ref = github.context.sha;
+    }
+    _defaultContext = `${process.env.GITHUB_SERVER_URL || 'https://github.com'}/${github.context.repo.owner}/${github.context.repo.repo}.git#${ref}`;
   }
   return _defaultContext;
 }
@@ -66,13 +71,13 @@ export async function getInputs(defaultContext: string): Promise<Inputs> {
     context: core.getInput('context') || defaultContext,
     file: core.getInput('file'),
     labels: await getInputList('labels', true),
-    load: /true/i.test(core.getInput('load')),
+    load: core.getBooleanInput('load'),
     network: core.getInput('network'),
-    noCache: /true/i.test(core.getInput('no-cache')),
+    noCache: core.getBooleanInput('no-cache'),
     outputs: await getInputList('outputs', true),
     platforms: await getInputList('platforms'),
-    pull: /true/i.test(core.getInput('pull')),
-    push: /true/i.test(core.getInput('push')),
+    pull: core.getBooleanInput('pull'),
+    push: core.getBooleanInput('push'),
     secrets: await getInputList('secrets', true),
     secretFiles: await getInputList('secret-files', true),
     ssh: await getInputList('ssh'),
@@ -113,12 +118,12 @@ async function getBuildArgs(inputs: Inputs, defaultContext: string, buildxVersio
   await asyncForEach(inputs.outputs, async output => {
     args.push('--output', output);
   });
-  if (
-    !buildx.isLocalOrTarExporter(inputs.outputs) &&
-    (inputs.platforms.length == 0 || semver.satisfies(buildxVersion, '>=0.4.2'))
-  ) {
+  if (!buildx.isLocalOrTarExporter(inputs.outputs) && (inputs.platforms.length == 0 || buildx.satisfies(buildxVersion, '>=0.4.2'))) {
     args.push('--iidfile', await buildx.getImageIDFile());
   }
+  if (buildx.satisfies(buildxVersion, '>=0.6.0')) {
+    args.push('--metadata-file', await buildx.getMetadataFile());
+  }
   await asyncForEach(inputs.cacheFrom, async cacheFrom => {
     args.push('--cache-from', cacheFrom);
   });
@@ -184,6 +189,7 @@ export async function getInputList(name: string, ignoreComma?: boolean): Promise
 
   for (let output of (await csvparse(items, {
     columns: false,
+    relax: true,
     relaxColumnCount: true,
     skipLinesWithEmptyValues: true
   })) as Array<string[]>) {
@@ -205,3 +211,8 @@ export const asyncForEach = async (array, callback) => {
     await callback(array[index], index, array);
   }
 };
+
+// FIXME: Temp fix https://github.com/actions/toolkit/issues/777
+export function setOutput(name: string, value: any): void {
+  issueCommand('set-output', {name}, value);
+}

src/docker.ts

@@ -1,7 +0,0 @@
-import * as exec from './exec';
-
-export async function isDaemonRunning(): Promise<boolean> {
-  return await exec.exec(`docker`, ['version', '--format', '{{.Server.Os}}'], true).then(res => {
-    return !res.stdout.includes(' ') && res.success;
-  });
-}

src/exec.ts

@@ -1,34 +0,0 @@
-import * as aexec from '@actions/exec';
-import {ExecOptions} from '@actions/exec';
-
-export interface ExecResult {
-  success: boolean;
-  stdout: string;
-  stderr: string;
-}
-
-export const exec = async (command: string, args: string[] = [], silent?: boolean): Promise<ExecResult> => {
-  let stdout: string = '';
-  let stderr: string = '';
-
-  const options: ExecOptions = {
-    silent: silent,
-    ignoreReturnCode: true
-  };
-  options.listeners = {
-    stdout: (data: Buffer) => {
-      stdout += data.toString();
-    },
-    stderr: (data: Buffer) => {
-      stderr += data.toString();
-    }
-  };
-
-  const returnCode: number = await aexec.exec(command, args, options);
-
-  return {
-    success: returnCode === 0,
-    stdout: stdout.trim(),
-    stderr: stderr.trim()
-  };
-};

src/main.ts

@@ -1,42 +1,50 @@
 import * as fs from 'fs';
-import * as os from 'os';
 import * as buildx from './buildx';
 import * as context from './context';
-import * as exec from './exec';
 import * as stateHelper from './state-helper';
 import * as core from '@actions/core';
+import * as exec from '@actions/exec';
 
 async function run(): Promise<void> {
   try {
-    if (os.platform() !== 'linux') {
-      throw new Error(`Only supported on linux platform`);
-    }
+    core.startGroup(`Docker info`);
+    await exec.exec('docker', ['version']);
+    await exec.exec('docker', ['info']);
+    core.endGroup();
 
     if (!(await buildx.isAvailable())) {
-      throw new Error(`Buildx is required. See https://github.com/docker/setup-buildx-action to set up buildx.`);
+      core.setFailed(`Docker buildx is required. See https://github.com/docker/setup-buildx-action to set up buildx.`);
+      return;
     }
     stateHelper.setTmpDir(context.tmpDir());
 
     const buildxVersion = await buildx.getVersion();
-    core.info(`📣 Buildx version: ${buildxVersion}`);
-
     const defContext = context.defaultContext();
     let inputs: context.Inputs = await context.getInputs(defContext);
 
-    core.info(`🏃 Starting build...`);
     const args: string[] = await context.getArgs(inputs, defContext, buildxVersion);
-    await exec.exec('docker', args).then(res => {
-      if (res.stderr != '' && !res.success) {
-        throw new Error(`buildx call failed with: ${res.stderr.match(/(.*)\s*$/)![0]}`);
+    await exec
+      .getExecOutput('docker', args, {
+        ignoreReturnCode: true
+      })
+      .then(res => {
+        if (res.stderr.length > 0 && res.exitCode != 0) {
+          throw new Error(`buildx failed with: ${res.stderr.match(/(.*)\s*$/)![0].trim()}`);
+        }
+      });
+
+    await core.group(`Setting outputs`, async () => {
+      const imageID = await buildx.getImageID();
+      const metadata = await buildx.getMetadata();
+      if (imageID) {
+        core.info(`digest=${imageID}`);
+        context.setOutput('digest', imageID);
+      }
+      if (metadata) {
+        core.info(`metadata=${metadata}`);
+        context.setOutput('metadata', metadata);
       }
     });
-
-    const imageID = await buildx.getImageID();
-    if (imageID) {
-      core.info('🛒 Extracting digest...');
-      core.info(`${imageID}`);
-      core.setOutput('digest', imageID);
-    }
   } catch (error) {
     core.setFailed(error.message);
   }
@@ -44,8 +52,9 @@ async function run(): Promise<void> {
 
 async function cleanup(): Promise<void> {
   if (stateHelper.tmpDir.length > 0) {
-    core.info(`🚿 Removing temp folder ${stateHelper.tmpDir}`);
+    core.startGroup(`Removing temp folder ${stateHelper.tmpDir}`);
     fs.rmdirSync(stateHelper.tmpDir, {recursive: true});
+    core.endGroup();
   }
 }