add attestation-id and attestation-url outputs (#181)

Signed-off-by: Brian DeHamer <bdehamer@github.com>

README.md

@@ -44,7 +44,7 @@ attest:
 1. Add the following to your workflow after your artifact has been built:
 
    ```yaml
-   - uses: actions/attest@v1
+   - uses: actions/attest@v2
      with:
        subject-path: '<PATH TO ARTIFACT>'
        predicate-type: '<PREDICATE URI>'
@@ -61,7 +61,7 @@ attest:
 See [action.yml](action.yml)
 
 ```yaml
-- uses: actions/attest@v1
+- uses: actions/attest@v2
   with:
     # Path to the artifact serving as the subject of the attestation. Must
     # specify exactly one of "subject-path" or "subject-digest". May contain
@@ -109,9 +109,11 @@ See [action.yml](action.yml)
 
 <!-- markdownlint-disable MD013 -->
 
-| Name          | Description                                                    | Example                 |
-| ------------- | -------------------------------------------------------------- | ----------------------- |
-| `bundle-path` | Absolute path to the file containing the generated attestation | `/tmp/attestation.json` |
+| Name              | Description                                                    | Example                                          |
+| ----------------- | -------------------------------------------------------------- | ------------------------------------------------ |
+| `attestation-id`  | GitHub ID for the attestation                                  | `123456`                                         |
+| `attestation-url` | Absolute path to the file containing the generated attestation | `https://github.com/foo/bar/attestations/123456` |
+| `bundle-path`     | Absolute path to the file containing the generated attestation | `/tmp/attestation.json`                          |
 
 <!-- markdownlint-enable MD013 -->
 
@@ -157,7 +159,7 @@ jobs:
       - name: Build artifact
         run: make my-app
       - name: Attest
-        uses: actions/attest@v1
+        uses: actions/attest@v2
         with:
           subject-path: '${{ github.workspace }}/my-app'
           predicate-type: 'https://example.com/predicate/v1'
@@ -170,7 +172,7 @@ If you are generating multiple artifacts, you can attest all of them at the same
 time by using a wildcard in the `subject-path` input.
 
 ```yaml
-- uses: actions/attest@v1
+- uses: actions/attest@v2
   with:
     subject-path: 'dist/**/my-bin-*'
     predicate-type: 'https://example.com/predicate/v1'
@@ -184,13 +186,13 @@ Alternatively, you can explicitly list multiple subjects with either a comma or
 newline delimited list:
 
 ```yaml
-- uses: actions/attest@v1
+- uses: actions/attest@v2
   with:
     subject-path: 'dist/foo, dist/bar'
 ```
 
 ```yaml
-- uses: actions/attest@v1
+- uses: actions/attest@v2
   with:
     subject-path: |
       dist/foo
@@ -247,7 +249,7 @@ jobs:
           push: true
           tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
       - name: Attest
-        uses: actions/attest@v1
+        uses: actions/attest@v2
         id: attest
         with:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

__tests__/main.test.ts

@@ -199,6 +199,16 @@ describe('action', () => {
         'bundle-path',
         expect.stringMatching('attestation.json')
       )
+      expect(setOutputMock).toHaveBeenNthCalledWith(
+        2,
+        'attestation-id',
+        expect.stringMatching(attestationID)
+      )
+      expect(setOutputMock).toHaveBeenNthCalledWith(
+        3,
+        'attestation-url',
+        expect.stringContaining(`foo/bar/attestations/${attestationID}`)
+      )
       expect(setFailedMock).not.toHaveBeenCalled()
     })
   })
@@ -285,6 +295,16 @@ describe('action', () => {
         'bundle-path',
         expect.stringMatching('attestation.json')
       )
+      expect(setOutputMock).toHaveBeenNthCalledWith(
+        2,
+        'attestation-id',
+        expect.stringMatching(attestationID)
+      )
+      expect(setOutputMock).toHaveBeenNthCalledWith(
+        3,
+        'attestation-url',
+        expect.stringContaining(`foo/bar/attestations/${attestationID}`)
+      )
       expect(setFailedMock).not.toHaveBeenCalled()
     })
   })

action.yml

@@ -61,6 +61,10 @@ inputs:
 outputs:
   bundle-path:
     description: 'The path to the file containing the attestation bundle.'
+  attestation-id:
+    description: 'The ID of the attestation.'
+  attestation-url:
+    description: 'The URL for the attestation summary.'
 
 runs:
   using: node20

dist/index.js

@@ -70970,6 +70970,10 @@ async function run(inputs) {
             encoding: 'utf-8',
             flag: 'a'
         });
+        if (att.attestationID) {
+            core.setOutput('attestation-id', att.attestationID);
+            core.setOutput('attestation-url', attestationURL(att.attestationID));
+        }
         if (inputs.showSummary) {
             logSummary(att);
         }

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "actions/attest",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "actions/attest",
-      "version": "2.0.1",
+      "version": "2.1.0",
       "license": "MIT",
       "dependencies": {
         "@actions/attest": "^1.5.0",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "actions/attest",
   "description": "Generate signed attestations for workflow artifacts",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "author": "",
   "private": true,
   "homepage": "https://github.com/actions/attest",

src/main.ts

@@ -79,6 +79,11 @@ export async function run(inputs: RunInputs): Promise<void> {
       flag: 'a'
     })
 
+    if (att.attestationID) {
+      core.setOutput('attestation-id', att.attestationID)
+      core.setOutput('attestation-url', attestationURL(att.attestationID))
+    }
+
     if (inputs.showSummary) {
       logSummary(att)
     }