Update CHANGELOG

Co-authored-by: CrazyMax <crazy-max@users.noreply.github.com>

CHANGELOG.md

@@ -1,5 +1,24 @@
 # Changelog
 
+## 2.5.0 (2021/05/08)
+
+* Major version zero doc (#74)
+* Bump hosted-git-info from 2.8.8 to 2.8.9 (#73)
+* Bump lodash from 4.17.20 to 4.17.21 (#72)
+* Handle global expressions (#71)
+
+## 2.4.0 (2021/04/30)
+
+* Add `bake-target` input (#69)
+* Fix setOutput (#67)
+* Bump csv-parse from 4.15.3 to 4.15.4 (#65)
+* Bump @actions/core from 1.2.6 to 1.2.7 (#64)
+
+## 2.3.0 (2021/04/07)
+
+* Allow overriding flavor (#63)
+* Prefix/suffix not taken into account for `match`, `semver` and `schedule` types (#62)
+
 ## 2.2.1 (2021/04/05)
 
 * Skip and display warning if tag does not match (#59)

README.md

@@ -38,6 +38,8 @@ ___
   * [`type=sha`](#typesha)
 * [Notes](#notes)
   * [Latest tag](#latest-tag)
+  * [Global expressions](#global-expressions)
+  * [Major version zero](#major-version-zero)
   * [Overwrite labels](#overwrite-labels)
 * [Keep up-to-date with GitHub Dependabot](#keep-up-to-date-with-github-dependabot)
 * [Contributing](#contributing)
@@ -271,6 +273,7 @@ Following inputs can be used as `step.with` keys
 | `labels`            | List     | List of custom labels |
 | `sep-tags`          | String   | Separator to use for tags output (default `\n`) |
 | `sep-labels`        | String   | Separator to use for labels output (default `\n`) |
+| `bake-target`       | String   | Bake target name (default `ghaction-docker-meta`) |
 
 ### outputs
 
@@ -553,6 +556,44 @@ tags: |
 * [`type=semver,pattern=...`](#typesemver)
 * [`type=match,pattern=...`](#typematch)
 
+### Global expressions
+
+The following [Handlebars template](https://handlebarsjs.com/guide/) expressions for `prefix`, `suffix` and `value`
+attributes are available:
+
+| Expression               | Output               |
+|--------------------------|----------------------|
+| `{{branch}}`             | `master`             |
+| `{{tag}}`                | `v1.2.3`             |
+| `{{sha}}`                | `90dd603`            |
+
+```yaml
+tags: |
+  # dynamically set the branch name as a prefix
+  type=sha,prefix={{branch}}-
+  # dynamically set the branch name and sha as a custom tag
+  type=raw,value=mytag-{{branch}}-{{sha}}
+```
+
+### Major version zero
+
+Major version zero (`0.y.z`) is for initial development and **may** change at any time. This means the public API
+[**should not** be considered stable](https://semver.org/#spec-item-4).
+
+In this case, Docker tag `0` **should not** be generated if you're using [`type=semver`](#typesemver) with `{{major}}`
+pattern. You can manage this behavior like this:
+
+```yaml
+# refs/tags/v0.1.2
+tags: |
+  # output 0.1.2
+  type=semver,pattern={{version}}
+  # output 0.1
+  type=semver,pattern={{major}}.{{minor}}
+  # disabled if major zero
+  type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}
+```
+
 ### Overwrite labels
 
 If some of the [OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/master/annotations.md)

UPGRADE.md

@@ -147,8 +147,8 @@ jobs:
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.docker_meta.outputs.tags }}
-          labels: ${{ steps.docker_meta.outputs.labels }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
 ```
 
 ```yaml

__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';
@@ -171,6 +172,27 @@ describe('asyncForEach', () => {
   });
 });
 
+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${os.EOL}`]);
+  });
+});
+
 // See: https://github.com/actions/toolkit/blob/master/packages/core/src/core.ts#L67
 function getInputName(name: string): string {
   return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`;
@@ -179,3 +201,11 @@ 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]);
+  }
+}

__tests__/meta.test.ts

@@ -89,7 +89,8 @@ describe('null', () => {
       {
         images: ['user/app'],
         tags: [
-          `type=sha`
+          `type=sha`,
+          `type=raw,{{branch}}`,
         ]
       } as Inputs,
       {
@@ -586,6 +587,36 @@ describe('push', () => {
         "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
         "org.opencontainers.image.licenses=MIT"
       ]
+    ],
+    [
+      'push17',
+      'event_push_defbranch.env',
+      {
+        images: ['user/app'],
+        tags: [
+          `type=raw,value=mytag-{{branch}}`,
+          `type=raw,value=mytag-{{tag}}`
+        ],
+      } as Inputs,
+      {
+        main: 'mytag-master',
+        partial: ['mytag-'],
+        latest: false
+      } as Version,
+      [
+        'user/app:mytag-master',
+        'user/app:mytag-'
+      ],
+      [
+        "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",
+        "org.opencontainers.image.version=mytag-master",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
     ]
   ])('given %p with %p event', tagsLabelsTest);
 });
@@ -1169,6 +1200,76 @@ describe('tag', () => {
         "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
         "org.opencontainers.image.licenses=MIT"
       ]
+    ],
+    [
+      'tag19',
+      'event_tag_p1-v1.0.0.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tags: [
+          `type=match,pattern=p1-v(\\d.\\d.\\d),group=1`,
+          `type=match,pattern=p1-v(\\d.\\d),group=1,suffix=`,
+          `type=ref,event=pr`,
+          `type=sha`
+        ],
+        flavor: [
+          `suffix=-dev`
+        ]
+      } as Inputs,
+      {
+        main: '1.0.0-dev',
+        partial: ['1.0', 'sha-90dd603-dev'],
+        latest: true
+      } as Version,
+      [
+        'org/app:1.0.0-dev',
+        'org/app:1.0',
+        'org/app:sha-90dd603-dev',
+        'org/app:latest',
+        'ghcr.io/user/app:1.0.0-dev',
+        'ghcr.io/user/app:1.0',
+        'ghcr.io/user/app:sha-90dd603-dev',
+        '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",
+        "org.opencontainers.image.version=1.0.0-dev",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'tag20',
+      'event_tag_v1.1.1.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tags: [
+          `type=raw,{{tag}}-{{sha}}-foo`
+        ]
+      } as Inputs,
+      {
+        main: 'v1.1.1-90dd603-foo',
+        partial: [],
+        latest: false
+      } as Version,
+      [
+        'org/app:v1.1.1-90dd603-foo',
+        'ghcr.io/user/app:v1.1.1-90dd603-foo'
+      ],
+      [
+        "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",
+        "org.opencontainers.image.version=v1.1.1-90dd603-foo",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
     ]
   ])('given %p with %p event', tagsLabelsTest);
 });
@@ -1578,6 +1679,72 @@ describe('pr', () => {
         "org.opencontainers.image.licenses=MIT"
       ]
     ],
+    [
+      'pr05',
+      'event_pull_request.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tags: [
+          `type=ref,event=pr`
+        ],
+        flavor: [
+          `prefix=glo-`,
+          `suffix=-bal`
+        ]
+      } as Inputs,
+      {
+        main: 'pr-2-bal',
+        partial: [],
+        latest: false
+      } as Version,
+      [
+        'org/app:pr-2-bal',
+        'ghcr.io/user/app:pr-2-bal'
+      ],
+      [
+        "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",
+        "org.opencontainers.image.version=pr-2-bal",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=1e9249f05bfc090e0688b8fb9c1b347586add504",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
+    [
+      'pr06',
+      'event_pull_request.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tags: [
+          `type=ref,event=pr,prefix=`
+        ],
+        flavor: [
+          `prefix=glo-`,
+          `suffix=-bal`
+        ]
+      } as Inputs,
+      {
+        main: '2-bal',
+        partial: [],
+        latest: false
+      } as Version,
+      [
+        'org/app:2-bal',
+        'ghcr.io/user/app:2-bal'
+      ],
+      [
+        "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",
+        "org.opencontainers.image.version=2-bal",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=1e9249f05bfc090e0688b8fb9c1b347586add504",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ]
   ])('given %p with %p event', tagsLabelsTest);
 });
 
@@ -1758,6 +1925,39 @@ describe('schedule', () => {
         "org.opencontainers.image.licenses=MIT"
       ]
     ],
+    [
+      'schedule07',
+      'event_schedule.env',
+      {
+        images: ['org/app', 'ghcr.io/user/app'],
+        tags: [
+          `type=schedule`,
+        ],
+        flavor: [
+          `prefix=glo-`,
+          `suffix=-bal`
+        ]
+      } as Inputs,
+      {
+        main: 'glo-nightly-bal',
+        partial: [],
+        latest: false
+      } as Version,
+      [
+        'org/app:glo-nightly-bal',
+        'ghcr.io/user/app:glo-nightly-bal'
+      ],
+      [
+        "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",
+        "org.opencontainers.image.version=glo-nightly-bal",
+        "org.opencontainers.image.created=2020-01-10T00:30:00.000Z",
+        "org.opencontainers.image.revision=90dd6032fac8bda1b6c4436a2e65de27961ed071",
+        "org.opencontainers.image.licenses=MIT"
+      ]
+    ],
   ])('given %p with %p event', tagsLabelsTest);
 });
 
@@ -2252,11 +2452,12 @@ describe('bake', () => {
           `type=raw,my`,
           `type=raw,custom`,
           `type=raw,tags`
-        ]
+        ],
+        bakeTarget: "meta"
       } as Inputs,
       {
         "target": {
-          "ghaction-docker-meta": {
+          "meta": {
             "tags": [
               "user/app:release1",
               "user/app:my",

__tests__/tag.test.ts

@@ -21,8 +21,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Schedule],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "pattern": "nightly"
           }
         },
@@ -31,8 +29,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Semver],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "pattern": "{{version}}",
             "value": ""
           }
@@ -42,8 +38,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Match],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "pattern": "\\d.\\d.\\d",
             "group": "0",
             "value": ""
@@ -54,8 +48,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Edge],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "branch": ""
           }
         },
@@ -64,8 +56,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Ref],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "event": RefEvent.Branch
           }
         },
@@ -74,8 +64,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Ref],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "event": RefEvent.Tag
           }
         },
@@ -85,7 +73,6 @@ describe('transform', () => {
             "priority": DefaultPriorities[Type.Ref],
             "enable": "true",
             "prefix": "pr-",
-            "suffix": "",
             "event": RefEvent.PR
           }
         },
@@ -94,8 +81,6 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Raw],
             "enable": "true",
-            "prefix": "",
-            "suffix": "",
             "value": "foo"
           }
         },
@@ -104,8 +89,7 @@ describe('transform', () => {
           attrs: {
             "priority": DefaultPriorities[Type.Sha],
             "enable": "true",
-            "prefix": "sha-",
-            "suffix": ""
+            "prefix": "sha-"
           }
         }
       ] as Tag[],
@@ -135,8 +119,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Schedule],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "{{date 'YYYYMMDD'}}"
         }
       } as Tag,
@@ -149,8 +131,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Semver],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "{{version}}",
           "value": ""
         }
@@ -164,8 +144,6 @@ describe('parse', () => {
         attrs: {
           "priority": "1",
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "{{version}}",
           "value": ""
         }
@@ -179,8 +157,6 @@ describe('parse', () => {
         attrs: {
           "priority": "1",
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "{{version}}",
           "value": "v1.0.0"
         }
@@ -194,8 +170,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Match],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "v(.*)",
           "group": "1",
           "value": ""
@@ -210,8 +184,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Match],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "^v(\\d.\\d.\\d)$",
           "group": "1",
           "value": ""
@@ -226,8 +198,6 @@ describe('parse', () => {
         attrs: {
           "priority": "700",
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "v(.*)",
           "group": "1",
           "value": ""
@@ -242,8 +212,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Match],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "pattern": "v(.*)",
           "group": "1",
           "value": "v1.2.3"
@@ -263,8 +231,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Edge],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "branch": ""
         }
       } as Tag,
@@ -277,8 +243,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Edge],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "branch": "master"
         }
       } as Tag,
@@ -291,8 +255,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Ref],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "event": RefEvent.Tag
         }
       } as Tag,
@@ -305,8 +267,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Ref],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "event": RefEvent.Branch
         }
       } as Tag,
@@ -320,7 +280,6 @@ describe('parse', () => {
           "priority": DefaultPriorities[Type.Ref],
           "enable": "true",
           "prefix": "pr-",
-          "suffix": "",
           "event": RefEvent.PR
         }
       } as Tag,
@@ -343,8 +302,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Raw],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "value": "acustomtag"
         }
       } as Tag,
@@ -362,8 +319,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Raw],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "value": "acustomtag2"
         }
       } as Tag,
@@ -376,8 +331,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Raw],
           "enable": "true",
-          "prefix": "",
-          "suffix": "",
           "value": "acustomtag4"
         }
       } as Tag,
@@ -390,8 +343,6 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Raw],
           "enable": "false",
-          "prefix": "",
-          "suffix": "",
           "value": "acustomtag5"
         }
       } as Tag,
@@ -404,8 +355,7 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Sha],
           "enable": "true",
-          "prefix": "sha-",
-          "suffix": ""
+          "prefix": "sha-"
         }
       } as Tag,
       false
@@ -417,8 +367,7 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Sha],
           "enable": "true",
-          "prefix": "",
-          "suffix": ""
+          "prefix": ""
         }
       } as Tag,
       false
@@ -430,8 +379,7 @@ describe('parse', () => {
         attrs: {
           "priority": DefaultPriorities[Type.Sha],
           "enable": "false",
-          "prefix": "sha-",
-          "suffix": ""
+          "prefix": "sha-"
         }
       } as Tag,
       false

action.yml

@@ -25,6 +25,9 @@ inputs:
   sep-labels:
     description: 'Separator to use for labels output (default \n)'
     required: false
+  bake-target:
+    description: 'Bake target name (default ghaction-docker-meta)'
+    required: false
   github-token:
     description: 'GitHub Token as provided by secrets'
     default: ${{ github.token }}

dist/index.js

@@ -39,9 +39,10 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.asyncForEach = exports.getInputList = exports.getInputs = exports.tmpDir = void 0;
+exports.setOutput = exports.asyncForEach = exports.getInputList = exports.getInputs = exports.tmpDir = void 0;
 const sync_1 = __importDefault(__webpack_require__(8750));
 const core = __importStar(__webpack_require__(2186));
+const command_1 = __webpack_require__(7351);
 const fs = __importStar(__webpack_require__(5747));
 const os = __importStar(__webpack_require__(2087));
 const path = __importStar(__webpack_require__(5622));
@@ -61,6 +62,7 @@ function getInputs() {
         labels: getInputList('labels', true),
         sepTags: core.getInput('sep-tags') || `\n`,
         sepLabels: core.getInput('sep-labels') || `\n`,
+        bakeTarget: core.getInput('bake-target') || `ghaction-docker-meta`,
         githubToken: core.getInput('github-token')
     };
 }
@@ -94,6 +96,11 @@ exports.asyncForEach = (array, callback) => __awaiter(void 0, void 0, void 0, fu
         yield callback(array[index], index, array);
     }
 });
+// FIXME: Temp fix https://github.com/actions/toolkit/issues/777
+function setOutput(name, value) {
+    command_1.issueCommand('set-output', { name }, value);
+}
+exports.setOutput = setOutput;
 //# sourceMappingURL=context.js.map
 
 /***/ }),
@@ -292,7 +299,7 @@ function run() {
                 core.info(version.main || '');
                 core.endGroup();
             }
-            core.setOutput('version', version.main || '');
+            context_1.setOutput('version', version.main || '');
             // Docker tags
             const tags = meta.getTags();
             if (tags.length == 0) {
@@ -305,7 +312,7 @@ function run() {
                 }
                 core.endGroup();
             }
-            core.setOutput('tags', tags.join(inputs.sepTags));
+            context_1.setOutput('tags', tags.join(inputs.sepTags));
             // Docker labels
             const labels = meta.getLabels();
             core.startGroup(`Docker labels`);
@@ -313,13 +320,13 @@ function run() {
                 core.info(label);
             }
             core.endGroup();
-            core.setOutput('labels', labels.join(inputs.sepLabels));
+            context_1.setOutput('labels', labels.join(inputs.sepLabels));
             // Bake definition file
             const bakeFile = meta.getBakeFile();
             core.startGroup(`Bake definition file`);
             core.info(fs.readFileSync(bakeFile, 'utf8'));
             core.endGroup();
-            core.setOutput('bake-file', bakeFile);
+            context_1.setOutput('bake-file', bakeFile);
         }
         catch (error) {
             core.setFailed(error.message);
@@ -386,7 +393,7 @@ class Meta {
             latest: undefined
         };
         for (const tag of this.tags) {
-            if (tag.attrs['enable'] == 'false') {
+            if (!/true/i.test(tag.attrs['enable'])) {
                 continue;
             }
             switch (tag.type) {
@@ -439,21 +446,12 @@ class Meta {
             return version;
         }
         const currentDate = this.date;
-        const vraw = handlebars.compile(tag.attrs['pattern'])({
+        const vraw = this.setValue(handlebars.compile(tag.attrs['pattern'])({
             date: function (format) {
                 return moment_1.default(currentDate).utc().format(format);
             }
-        });
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-        }
-        return version;
+        }), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
     }
     procSemver(version, tag) {
         if (!/^refs\/tags\//.test(this.context.ref) && tag.attrs['value'].length == 0) {
@@ -461,7 +459,7 @@ class Meta {
         }
         let vraw;
         if (tag.attrs['value'].length > 0) {
-            vraw = tag.attrs['value'];
+            vraw = this.setGlobalExp(tag.attrs['value']);
         }
         else {
             vraw = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
@@ -475,28 +473,13 @@ class Meta {
             includePrerelease: true
         });
         if (semver.prerelease(vraw)) {
-            vraw = handlebars.compile('{{version}}')(sver);
-            if (version.main == undefined) {
-                version.main = vraw;
-            }
-            else if (vraw !== version.main) {
-                version.partial.push(vraw);
-            }
+            vraw = this.setValue(handlebars.compile('{{version}}')(sver), tag);
         }
         else {
-            vraw = handlebars.compile(tag.attrs['pattern'])(sver);
-            if (version.main == undefined) {
-                version.main = vraw;
-            }
-            else if (vraw !== version.main) {
-                version.partial.push(vraw);
-            }
+            vraw = this.setValue(handlebars.compile(tag.attrs['pattern'])(sver), tag);
             latest = true;
         }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true';
-        }
-        return version;
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true');
     }
     procMatch(version, tag) {
         if (!/^refs\/tags\//.test(this.context.ref) && tag.attrs['value'].length == 0) {
@@ -504,7 +487,7 @@ class Meta {
         }
         let vraw;
         if (tag.attrs['value'].length > 0) {
-            vraw = tag.attrs['value'];
+            vraw = this.setGlobalExp(tag.attrs['value']);
         }
         else {
             vraw = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
@@ -526,66 +509,29 @@ class Meta {
             core.warning(`Group ${tag.attrs['group']} does not exist for ${tag.attrs['pattern']} pattern.`);
             return version;
         }
-        vraw = tmatch[tag.attrs['group']];
-        latest = true;
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true';
-        }
-        return version;
+        vraw = this.setValue(tmatch[tag.attrs['group']], tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true');
     }
     procRefBranch(version, tag) {
         if (!/^refs\/heads\//.test(this.context.ref)) {
             return version;
         }
-        const vraw = this.setFlavor(this.context.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-'), tag);
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-        }
-        return version;
+        const vraw = this.setValue(this.context.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-'), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
     }
     procRefTag(version, tag) {
         if (!/^refs\/tags\//.test(this.context.ref)) {
             return version;
         }
-        const vraw = this.setFlavor(this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-'), tag);
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true';
-        }
-        return version;
+        const vraw = this.setValue(this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-'), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true');
     }
     procRefPr(version, tag) {
         if (!/^refs\/pull\//.test(this.context.ref)) {
             return version;
         }
-        const vraw = this.setFlavor(this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, ''), tag);
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-        }
-        return version;
+        const vraw = this.setValue(this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, ''), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
     }
     procEdge(version, tag) {
         if (!/^refs\/heads\//.test(this.context.ref)) {
@@ -598,62 +544,70 @@ class Meta {
         if (tag.attrs['branch'] === val) {
             val = 'edge';
         }
-        const vraw = this.setFlavor(val, tag);
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-        }
-        return version;
+        const vraw = this.setValue(val, tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
     }
     procRaw(version, tag) {
-        const vraw = this.setFlavor(tag.attrs['value'], tag);
-        if (version.main == undefined) {
-            version.main = vraw;
-        }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
-        }
-        if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-        }
-        return version;
+        const vraw = this.setValue(this.setGlobalExp(tag.attrs['value']), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
     }
     procSha(version, tag) {
         if (!this.context.sha) {
             return version;
         }
-        const vraw = this.setFlavor(this.context.sha.substr(0, 7), tag);
-        if (version.main == undefined) {
-            version.main = vraw;
+        const vraw = this.setValue(this.context.sha.substr(0, 7), tag);
+        return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
+    }
+    static setVersion(version, val, latest) {
+        if (val.length == 0) {
+            return version;
         }
-        else if (vraw !== version.main) {
-            version.partial.push(vraw);
+        if (version.main == undefined) {
+            version.main = val;
+        }
+        else if (val !== version.main) {
+            version.partial.push(val);
         }
         if (version.latest == undefined) {
-            version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
+            version.latest = latest;
         }
         return version;
     }
-    setFlavor(val, tag) {
-        if (tag.attrs['prefix'].length > 0) {
-            val = `${tag.attrs['prefix']}${val}`;
+    setValue(val, tag) {
+        if (tag.attrs.hasOwnProperty('prefix')) {
+            val = `${this.setGlobalExp(tag.attrs['prefix'])}${val}`;
         }
         else if (this.flavor.prefix.length > 0) {
-            val = `${this.flavor.prefix}${val}`;
+            val = `${this.setGlobalExp(this.flavor.prefix)}${val}`;
         }
-        if (tag.attrs['suffix'].length > 0) {
-            val = `${val}${tag.attrs['suffix']}`;
+        if (tag.attrs.hasOwnProperty('suffix')) {
+            val = `${val}${this.setGlobalExp(tag.attrs['suffix'])}`;
         }
         else if (this.flavor.suffix.length > 0) {
-            val = `${val}${this.flavor.suffix}`;
+            val = `${val}${this.setGlobalExp(this.flavor.suffix)}`;
         }
         return val;
     }
+    setGlobalExp(val) {
+        const ctx = this.context;
+        return handlebars.compile(val)({
+            branch: function () {
+                if (!/^refs\/heads\//.test(ctx.ref)) {
+                    return '';
+                }
+                return ctx.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-');
+            },
+            tag: function () {
+                if (!/^refs\/tags\//.test(ctx.ref)) {
+                    return '';
+                }
+                return ctx.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
+            },
+            sha: function () {
+                return ctx.sha.substr(0, 7);
+            }
+        });
+    }
     getTags() {
         if (!this.version.main) {
             return [];
@@ -698,7 +652,7 @@ class Meta {
         const bakeFile = path.join(context_1.tmpDir(), 'ghaction-docker-meta-bake.json').split(path.sep).join(path.posix.sep);
         fs.writeFileSync(bakeFile, JSON.stringify({
             target: {
-                'ghaction-docker-meta': {
+                [this.inputs.bakeTarget]: {
                     tags: this.getTags(),
                     labels: jsonLabels,
                     args: {
@@ -918,12 +872,6 @@ function Parse(s) {
     if (!tag.attrs.hasOwnProperty('priority')) {
         tag.attrs['priority'] = exports.DefaultPriorities[tag.type];
     }
-    if (!tag.attrs.hasOwnProperty('prefix')) {
-        tag.attrs['prefix'] = '';
-    }
-    if (!tag.attrs.hasOwnProperty('suffix')) {
-        tag.attrs['suffix'] = '';
-    }
     if (!['true', 'false'].includes(tag.attrs['enable'])) {
         throw new Error(`Invalid value for enable attribute: ${tag.attrs['enable']}`);
     }
@@ -1130,6 +1078,7 @@ exports.getInput = getInput;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function setOutput(name, value) {
+    process.stdout.write(os.EOL);
     command_1.issueCommand('set-output', { name }, value);
 }
 exports.setOutput = setOutput;
@@ -5531,7 +5480,7 @@ class Parser extends Transform {
         for(let i = 0, l = record.length; i < l; i++){
           if(columns[i] === undefined || columns[i].disabled) continue
           // Turn duplicate columns into an array
-          if (columns_duplicates_to_array === true && obj[columns[i].name]) {
+          if (columns_duplicates_to_array === true && obj[columns[i].name] !== undefined) {
             if (Array.isArray(obj[columns[i].name])) {
               obj[columns[i].name] = obj[columns[i].name].concat(record[i])
             } else {

package.json

@@ -23,9 +23,9 @@
   "author": "CrazyMax",
   "license": "MIT",
   "dependencies": {
-    "@actions/core": "^1.2.6",
+    "@actions/core": "^1.2.7",
     "@actions/github": "^4.0.0",
-    "csv-parse": "^4.15.3",
+    "csv-parse": "^4.15.4",
     "handlebars": "^4.7.7",
     "moment": "^2.29.1",
     "semver": "^7.3.5"

src/context.ts

@@ -1,5 +1,6 @@
 import csvparse from 'csv-parse/lib/sync';
 import * as core from '@actions/core';
+import {issueCommand} from '@actions/core/lib/command';
 import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
@@ -13,6 +14,7 @@ export interface Inputs {
   labels: string[];
   sepTags: string;
   sepLabels: string;
+  bakeTarget: string;
   githubToken: string;
 }
 
@@ -31,6 +33,7 @@ export function getInputs(): Inputs {
     labels: getInputList('labels', true),
     sepTags: core.getInput('sep-tags') || `\n`,
     sepLabels: core.getInput('sep-labels') || `\n`,
+    bakeTarget: core.getInput('bake-target') || `ghaction-docker-meta`,
     githubToken: core.getInput('github-token')
   };
 }
@@ -66,3 +69,8 @@ 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/main.ts

@@ -1,5 +1,5 @@
 import * as fs from 'fs';
-import {getInputs, Inputs} from './context';
+import {getInputs, Inputs, setOutput} from './context';
 import * as github from './github';
 import {Meta, Version} from './meta';
 import * as core from '@actions/core';
@@ -36,7 +36,7 @@ async function run() {
       core.info(version.main || '');
       core.endGroup();
     }
-    core.setOutput('version', version.main || '');
+    setOutput('version', version.main || '');
 
     // Docker tags
     const tags: Array<string> = meta.getTags();
@@ -49,7 +49,7 @@ async function run() {
       }
       core.endGroup();
     }
-    core.setOutput('tags', tags.join(inputs.sepTags));
+    setOutput('tags', tags.join(inputs.sepTags));
 
     // Docker labels
     const labels: Array<string> = meta.getLabels();
@@ -58,14 +58,14 @@ async function run() {
       core.info(label);
     }
     core.endGroup();
-    core.setOutput('labels', labels.join(inputs.sepLabels));
+    setOutput('labels', labels.join(inputs.sepLabels));
 
     // Bake definition file
     const bakeFile: string = meta.getBakeFile();
     core.startGroup(`Bake definition file`);
     core.info(fs.readFileSync(bakeFile, 'utf8'));
     core.endGroup();
-    core.setOutput('bake-file', bakeFile);
+    setOutput('bake-file', bakeFile);
   } catch (error) {
     core.setFailed(error.message);
   }

src/meta.ts

@@ -44,7 +44,7 @@ export class Meta {
     };
 
     for (const tag of this.tags) {
-      if (tag.attrs['enable'] == 'false') {
+      if (!/true/i.test(tag.attrs['enable'])) {
         continue;
       }
       switch (tag.type) {
@@ -99,22 +99,16 @@ export class Meta {
     }
 
     const currentDate = this.date;
-    const vraw = handlebars.compile(tag.attrs['pattern'])({
-      date: function (format) {
-        return moment(currentDate).utc().format(format);
-      }
-    });
+    const vraw = this.setValue(
+      handlebars.compile(tag.attrs['pattern'])({
+        date: function (format) {
+          return moment(currentDate).utc().format(format);
+        }
+      }),
+      tag
+    );
 
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-    }
-
-    return version;
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
   }
 
   private procSemver(version: Version, tag: tcl.Tag): Version {
@@ -124,7 +118,7 @@ export class Meta {
 
     let vraw: string;
     if (tag.attrs['value'].length > 0) {
-      vraw = tag.attrs['value'];
+      vraw = this.setGlobalExp(tag.attrs['value']);
     } else {
       vraw = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
     }
@@ -138,26 +132,13 @@ export class Meta {
       includePrerelease: true
     });
     if (semver.prerelease(vraw)) {
-      vraw = handlebars.compile('{{version}}')(sver);
-      if (version.main == undefined) {
-        version.main = vraw;
-      } else if (vraw !== version.main) {
-        version.partial.push(vraw);
-      }
+      vraw = this.setValue(handlebars.compile('{{version}}')(sver), tag);
     } else {
-      vraw = handlebars.compile(tag.attrs['pattern'])(sver);
-      if (version.main == undefined) {
-        version.main = vraw;
-      } else if (vraw !== version.main) {
-        version.partial.push(vraw);
-      }
+      vraw = this.setValue(handlebars.compile(tag.attrs['pattern'])(sver), tag);
       latest = true;
     }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true';
-    }
 
-    return version;
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true');
   }
 
   private procMatch(version: Version, tag: tcl.Tag): Version {
@@ -167,7 +148,7 @@ export class Meta {
 
     let vraw: string;
     if (tag.attrs['value'].length > 0) {
-      vraw = tag.attrs['value'];
+      vraw = this.setGlobalExp(tag.attrs['value']);
     } else {
       vraw = this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
     }
@@ -189,73 +170,32 @@ export class Meta {
       return version;
     }
 
-    vraw = tmatch[tag.attrs['group']];
-    latest = true;
-
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? latest : this.flavor.latest == 'true';
-    }
-
-    return version;
+    vraw = this.setValue(tmatch[tag.attrs['group']], tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true');
   }
 
   private procRefBranch(version: Version, tag: tcl.Tag): Version {
     if (!/^refs\/heads\//.test(this.context.ref)) {
       return version;
     }
-
-    const vraw = this.setFlavor(this.context.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-'), tag);
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-    }
-
-    return version;
+    const vraw = this.setValue(this.context.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-'), tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
   }
 
   private procRefTag(version: Version, tag: tcl.Tag): Version {
     if (!/^refs\/tags\//.test(this.context.ref)) {
       return version;
     }
-
-    const vraw = this.setFlavor(this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-'), tag);
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true';
-    }
-
-    return version;
+    const vraw = this.setValue(this.context.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-'), tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? true : this.flavor.latest == 'true');
   }
 
   private procRefPr(version: Version, tag: tcl.Tag): Version {
     if (!/^refs\/pull\//.test(this.context.ref)) {
       return version;
     }
-
-    const vraw = this.setFlavor(this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, ''), tag);
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-    }
-
-    return version;
+    const vraw = this.setValue(this.context.ref.replace(/^refs\/pull\//g, '').replace(/\/merge$/g, ''), tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
   }
 
   private procEdge(version: Version, tag: tcl.Tag): Version {
@@ -271,65 +211,73 @@ export class Meta {
       val = 'edge';
     }
 
-    const vraw = this.setFlavor(val, tag);
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-    }
-
-    return version;
+    const vraw = this.setValue(val, tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
   }
 
   private procRaw(version: Version, tag: tcl.Tag): Version {
-    const vraw = this.setFlavor(tag.attrs['value'], tag);
-    if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
-    }
-    if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
-    }
-
-    return version;
+    const vraw = this.setValue(this.setGlobalExp(tag.attrs['value']), tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
   }
 
   private procSha(version: Version, tag: tcl.Tag): Version {
     if (!this.context.sha) {
       return version;
     }
+    const vraw = this.setValue(this.context.sha.substr(0, 7), tag);
+    return Meta.setVersion(version, vraw, this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true');
+  }
 
-    const vraw = this.setFlavor(this.context.sha.substr(0, 7), tag);
+  private static setVersion(version: Version, val: string, latest: boolean): Version {
+    if (val.length == 0) {
+      return version;
+    }
     if (version.main == undefined) {
-      version.main = vraw;
-    } else if (vraw !== version.main) {
-      version.partial.push(vraw);
+      version.main = val;
+    } else if (val !== version.main) {
+      version.partial.push(val);
     }
     if (version.latest == undefined) {
-      version.latest = this.flavor.latest == 'auto' ? false : this.flavor.latest == 'true';
+      version.latest = latest;
     }
-
     return version;
   }
 
-  private setFlavor(val: string, tag: tcl.Tag): string {
-    if (tag.attrs['prefix'].length > 0) {
-      val = `${tag.attrs['prefix']}${val}`;
+  private setValue(val: string, tag: tcl.Tag): string {
+    if (tag.attrs.hasOwnProperty('prefix')) {
+      val = `${this.setGlobalExp(tag.attrs['prefix'])}${val}`;
     } else if (this.flavor.prefix.length > 0) {
-      val = `${this.flavor.prefix}${val}`;
+      val = `${this.setGlobalExp(this.flavor.prefix)}${val}`;
     }
-    if (tag.attrs['suffix'].length > 0) {
-      val = `${val}${tag.attrs['suffix']}`;
+    if (tag.attrs.hasOwnProperty('suffix')) {
+      val = `${val}${this.setGlobalExp(tag.attrs['suffix'])}`;
     } else if (this.flavor.suffix.length > 0) {
-      val = `${val}${this.flavor.suffix}`;
+      val = `${val}${this.setGlobalExp(this.flavor.suffix)}`;
     }
     return val;
   }
 
+  private setGlobalExp(val): string {
+    const ctx = this.context;
+    return handlebars.compile(val)({
+      branch: function () {
+        if (!/^refs\/heads\//.test(ctx.ref)) {
+          return '';
+        }
+        return ctx.ref.replace(/^refs\/heads\//g, '').replace(/[^a-zA-Z0-9._-]+/g, '-');
+      },
+      tag: function () {
+        if (!/^refs\/tags\//.test(ctx.ref)) {
+          return '';
+        }
+        return ctx.ref.replace(/^refs\/tags\//g, '').replace(/\//g, '-');
+      },
+      sha: function () {
+        return ctx.sha.substr(0, 7);
+      }
+    });
+  }
+
   public getTags(): Array<string> {
     if (!this.version.main) {
       return [];
@@ -380,7 +328,7 @@ export class Meta {
       JSON.stringify(
         {
           target: {
-            'ghaction-docker-meta': {
+            [this.inputs.bakeTarget]: {
               tags: this.getTags(),
               labels: jsonLabels,
               args: {

src/tag.ts

@@ -185,12 +185,6 @@ export function Parse(s: string): Tag {
   if (!tag.attrs.hasOwnProperty('priority')) {
     tag.attrs['priority'] = DefaultPriorities[tag.type];
   }
-  if (!tag.attrs.hasOwnProperty('prefix')) {
-    tag.attrs['prefix'] = '';
-  }
-  if (!tag.attrs.hasOwnProperty('suffix')) {
-    tag.attrs['suffix'] = '';
-  }
   if (!['true', 'false'].includes(tag.attrs['enable'])) {
     throw new Error(`Invalid value for enable attribute: ${tag.attrs['enable']}`);
   }

yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@actions/core@^1.2.6":
-  version "1.2.6"
-  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.6.tgz#a78d49f41a4def18e88ce47c2cac615d5694bf09"
-  integrity sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA==
+"@actions/core@^1.2.7":
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.7.tgz#594f8c45b213f0146e4be7eda8ae5cf4e198e5ab"
+  integrity sha512-kzLFD5BgEvq6ubcxdgPbRKGD2Qrgya/5j+wh4LZzqT915I0V3rED+MvjH6NXghbvk1MXknpNNQ3uKjXSEN00Ig==
 
 "@actions/github@^4.0.0":
   version "4.0.0"
@@ -1176,10 +1176,10 @@ cssstyle@^2.2.0:
   dependencies:
     cssom "~0.3.6"
 
-csv-parse@^4.15.3:
-  version "4.15.3"
-  resolved "https://registry.yarnpkg.com/csv-parse/-/csv-parse-4.15.3.tgz#8a62759617a920c328cb31c351b05053b8f92b10"
-  integrity sha512-jlTqDvLdHnYMSr08ynNfk4IAUSJgJjTKy2U5CQBSu4cN9vQOJonLVZP4Qo4gKKrIgIQ5dr07UwOJdi+lRqT12w==
+csv-parse@^4.15.4:
+  version "4.15.4"
+  resolved "https://registry.yarnpkg.com/csv-parse/-/csv-parse-4.15.4.tgz#ad1ec62aaf71a642982dfcb81f1848184d691db5"
+  integrity sha512-OdBbFc0yZhOm17lSxqkirrHlFFVpKRT0wp4DAGoJelsP3LbGzV9LNr7XmM/lrr0uGkCtaqac9UhP8PDHXOAbMg==
 
 dashdash@^1.12.0:
   version "1.14.1"
@@ -1701,9 +1701,9 @@ has@^1.0.3:
     function-bind "^1.1.1"
 
 hosted-git-info@^2.1.4:
-  version "2.8.8"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.8.tgz#7539bd4bc1e0e0a895815a2e0262420b12858488"
-  integrity sha512-f/wzC2QaWBs7t9IYqB4T3sR1xviIViXJRJTWBlx2Gf3g0Xi5vI7Yy4koXQ1c9OYDGHN9sBy1DQ2AB8fqZBWhUg==
+  version "2.8.9"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.9.tgz#dffc0bf9a21c02209090f2aa69429e1414daf3f9"
+  integrity sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==
 
 html-encoding-sniffer@^2.0.1:
   version "2.0.1"
@@ -2546,9 +2546,9 @@ lodash.sortby@^4.7.0:
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
 lodash@^4.17.19:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 lru-cache@^6.0.0:
   version "6.0.0"