Bump @actions/attest from 1.3.1 to 1.4.1 (#127)

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

.github/linters/.eslintrc.yml

@@ -41,8 +41,7 @@ rules:
     'eslint-comments/no-unused-disable': 'off',
     'i18n-text/no-en': 'off',
     'import/no-namespace': 'off',
-    'import/no-unresolved':
-      ['error', { 'ignore': ['csv-parse/sync']}],
+    'import/no-unresolved': ['error', { 'ignore': ['csv-parse/sync'] }],
     'no-console': 'off',
     'no-unused-vars': 'off',
     'prettier/prettier': 'error',

.github/workflows/linter.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Lint Codebase
         id: super-linter
-        uses: super-linter/super-linter/slim@v6
+        uses: super-linter/super-linter/slim@v7
         env:
           DEFAULT_BRANCH: main
           FILTER_REGEX_EXCLUDE: dist/**/*
@@ -46,5 +46,5 @@ jobs:
           TYPESCRIPT_DEFAULT_STYLE: prettier
           VALIDATE_ALL_CODEBASE: true
           VALIDATE_JAVASCRIPT_STANDARD: false
+          VALIDATE_TYPESCRIPT_STANDARD: false
           VALIDATE_JSCPD: false
-          VALIDATE_GITHUB_ACTIONS: false

README.md

@@ -65,7 +65,7 @@ See [action.yml](action.yml)
   with:
     # Path to the artifact serving as the subject of the attestation. Must
     # specify exactly one of "subject-path" or "subject-digest". May contain
-    # a glob pattern or list of paths (total subject count cannot exceed 64).
+    # a glob pattern or list of paths (total subject count cannot exceed 2500).
     subject-path:
 
     # SHA256 digest of the subject for the attestation. Must be in the form
@@ -81,12 +81,14 @@ See [action.yml](action.yml)
     # URI identifying the type of the predicate.
     predicate-type:
 
-    # JSON string containing the value for the attestation predicate. Must
-    # supply exactly one of "predicate-path" or "predicate".
+    # String containing the value for the attestation predicate. String length
+    # cannot exceed 16MB. Must supply exactly one of "predicate-path" or
+    # "predicate".
     predicate:
 
-    # Path to the file which contains the JSON content for the attestation
-    # predicate. Must supply exactly one of "predicate-path" or "predicate".
+    # Path to the file which contains the content for the attestation predicate.
+    # File size cannot exceed 16MB. Must supply exactly one of "predicate-path"
+    # or "predicate".
     predicate-path:
 
     # Whether to push the attestation to the image registry. Requires that the
@@ -94,6 +96,10 @@ See [action.yml](action.yml)
     # the "subject-digest" parameter be specified. Defaults to false.
     push-to-registry:
 
+    # Whether to attach a list of generated attestations to the workflow run
+    # summary page. Defaults to true.
+    show-summary:
+
     # The GitHub token used to make authenticated API requests. Default is
     # ${{ github.token }}
     github-token:
@@ -115,6 +121,20 @@ If multiple subjects are being attested at the same time, each attestation will
 be written to the output file on a separate line (using the [JSON Lines][7]
 format).
 
+## Attestation Limits
+
+### Subject Limits
+
+No more than 2500 subjects can be attested at the same time. Subjects will be
+processed in batches 50. After the initial group of 50, each subsequent batch
+will incur an exponentially increasing amount of delay (capped at 1 minute of
+delay per batch) to avoid overwhelming the attestation API.
+
+### Predicate Limits
+
+Whether supplied via the `predicate` or `predicatePath` input, the predicate
+string cannot exceed 16MB.
+
 ## Examples
 
 ### Identify Subject by Path
@@ -148,7 +168,7 @@ jobs:
           predicate: '{}'
 ```
 
-### Identify Subjects by Wildcard
+### Identify Multiple Subjects
 
 If you are generating multiple artifacts, you can generate an attestation for
 each by using a wildcard in the `subject-path` input.
@@ -164,6 +184,23 @@ each by using a wildcard in the `subject-path` input.
 For supported wildcards along with behavior and documentation, see
 [@actions/glob][8] which is used internally to search for files.
 
+Alternatively, you can explicitly list multiple subjects with either a comma or
+newline delimited list:
+
+```yaml
+- uses: actions/attest@v1
+  with:
+    subject-path: 'dist/foo, dist/bar'
+```
+
+```yaml
+- uses: actions/attest@v1
+  with:
+    subject-path: |
+      dist/foo
+      dist/bar
+```
+
 ### Container Image
 
 When working with container images you can invoke the action with the
@@ -175,8 +212,8 @@ fully-qualified image name (e.g. "ghcr.io/user/app" or
 "acme.azurecr.io/user/app"). Do NOT include a tag as part of the image name --
 the specific image being attested is identified by the supplied digest.
 
-> **NOTE**: When pushing to Docker Hub, please use "docker.io" as the
-> registry portion of the image name.
+> **NOTE**: When pushing to Docker Hub, please use "docker.io" as the registry
+> portion of the image name.
 
 ```yaml
 name: build-attested-image

__tests__/index.test.ts

@@ -2,12 +2,17 @@
  * Unit tests for the action's entrypoint, src/index.ts
  */
 
+import * as core from '@actions/core'
 import * as main from '../src/main'
 
 // Mock the action's entrypoint
 const runMock = jest.spyOn(main, 'run').mockImplementation()
+const getBooleanInputMock = jest.spyOn(core, 'getBooleanInput')
 
 describe('index', () => {
+  beforeEach(() => {
+    getBooleanInputMock.mockImplementation(() => false)
+  })
   it('calls run when imported', async () => {
     // eslint-disable-next-line @typescript-eslint/no-require-imports
     require('../src/index')

__tests__/main.test.ts

@@ -20,8 +20,6 @@ import * as main from '../src/main'
 // Mock the GitHub Actions core library
 const infoMock = jest.spyOn(core, 'info')
 const startGroupMock = jest.spyOn(core, 'startGroup')
-const getInputMock = jest.spyOn(core, 'getInput')
-const getBooleanInputMock = jest.spyOn(core, 'getBooleanInput')
 const setOutputMock = jest.spyOn(core, 'setOutput')
 const setFailedMock = jest.spyOn(core, 'setFailed')
 
@@ -38,12 +36,29 @@ const runMock = jest.spyOn(main, 'run')
 const mockAgent = new MockAgent()
 setGlobalDispatcher(mockAgent)
 
+const defaultInputs: main.RunInputs = {
+  predicate: '',
+  predicateType: '',
+  predicatePath: '',
+  subjectName: '',
+  subjectDigest: '',
+  subjectPath: '',
+  pushToRegistry: false,
+  showSummary: true,
+  githubToken: '',
+  privateSigning: false,
+  batchSize: 50
+}
+
 describe('action', () => {
   // Capture original environment variables and GitHub context so we can restore
   // them after each test
   const originalEnv = process.env
   const originalContext = { ...github.context }
 
+  // Mock OIDC token endpoint
+  const tokenURL = 'https://token.url'
+
   // Fake an OIDC token
   const oidcSubject = 'foo@bar.com'
   const oidcPayload = { sub: oidcSubject, iss: '' }
@@ -62,9 +77,6 @@ describe('action', () => {
   beforeEach(() => {
     jest.clearAllMocks()
 
-    // Mock OIDC token endpoint
-    const tokenURL = 'https://token.url'
-
     nock(tokenURL)
       .get('/')
       .query({ audience: 'sigstore' })
@@ -95,24 +107,22 @@ describe('action', () => {
   })
 
   describe('when ACTIONS_ID_TOKEN_REQUEST_URL is not set', () => {
-    const inputs = {
-      'subject-digest': subjectDigest,
-      'subject-name': subjectName,
-      'predicate-type': predicateType,
+    const inputs: main.RunInputs = {
+      ...defaultInputs,
+      subjectDigest,
+      subjectName,
+      predicateType,
       predicate,
-      'github-token': 'gh-token'
+      githubToken: 'gh-token'
     }
 
     beforeEach(() => {
       // Nullify the OIDC token URL
       process.env.ACTIONS_ID_TOKEN_REQUEST_URL = ''
-
-      getInputMock.mockImplementation(mockInput(inputs))
-      getBooleanInputMock.mockImplementation(() => false)
     })
 
     it('sets a failed status', async () => {
-      await main.run()
+      await main.run(inputs)
 
       expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
@@ -124,12 +134,8 @@ describe('action', () => {
   })
 
   describe('when no inputs are provided', () => {
-    beforeEach(() => {
-      getInputMock.mockImplementation(() => '')
-    })
-
     it('sets a failed status', async () => {
-      await main.run()
+      await main.run(defaultInputs)
 
       expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
@@ -139,12 +145,13 @@ describe('action', () => {
   })
 
   describe('when the repository is private', () => {
-    const inputs = {
-      'subject-digest': subjectDigest,
-      'subject-name': subjectName,
-      'predicate-type': predicateType,
+    const inputs: main.RunInputs = {
+      ...defaultInputs,
+      subjectDigest,
+      subjectName,
+      predicateType,
       predicate,
-      'github-token': 'gh-token'
+      githubToken: 'gh-token'
     }
 
     beforeEach(async () => {
@@ -154,9 +161,6 @@ describe('action', () => {
         repo: { owner: 'foo', repo: 'bar' }
       })
 
-      getInputMock.mockImplementation(mockInput(inputs))
-      getBooleanInputMock.mockImplementation(() => false)
-
       await mockFulcio({
         baseURL: 'https://fulcio.githubapp.com',
         strict: false
@@ -165,7 +169,7 @@ describe('action', () => {
     })
 
     it('invokes the action w/o error', async () => {
-      await main.run()
+      await main.run(inputs)
 
       expect(runMock).toHaveReturned()
       expect(setFailedMock).not.toHaveBeenCalledWith()
@@ -204,12 +208,14 @@ describe('action', () => {
     const getRegCredsSpy = jest.spyOn(oci, 'getRegistryCredentials')
     const attachArtifactSpy = jest.spyOn(oci, 'attachArtifactToImage')
 
-    const inputs = {
-      'subject-digest': subjectDigest,
-      'subject-name': subjectName,
-      'predicate-type': predicateType,
+    const inputs: main.RunInputs = {
+      ...defaultInputs,
+      subjectDigest,
+      subjectName,
+      predicateType,
       predicate,
-      'github-token': 'gh-token'
+      githubToken: 'gh-token',
+      pushToRegistry: true
     }
 
     beforeEach(async () => {
@@ -219,11 +225,6 @@ describe('action', () => {
         repo: { owner: 'foo', repo: 'bar' }
       })
 
-      // Mock the action's inputs
-      getInputMock.mockImplementation(mockInput(inputs))
-      // This is where we mock the push-to-registry input
-      getBooleanInputMock.mockImplementation(() => true)
-
       await mockFulcio({
         baseURL: 'https://fulcio.sigstore.dev',
         strict: false
@@ -244,7 +245,7 @@ describe('action', () => {
     })
 
     it('invokes the action w/o error', async () => {
-      await main.run()
+      await main.run(inputs)
 
       expect(runMock).toHaveReturned()
       expect(setFailedMock).not.toHaveBeenCalled()
@@ -289,11 +290,16 @@ describe('action', () => {
     })
   })
 
-  describe('when too many subjects are specified', () => {
+  describe('when the subject count exceeds the batch size', () => {
     let dir = ''
+    const filename = 'subject'
+    let scope: nock.Scope
 
     beforeEach(async () => {
-      const filename = 'subject'
+      // Start from scratch
+      nock.cleanAll()
+
+      const subjectCount = 5
       const content = 'file content'
 
       // Set-up temp directory
@@ -301,7 +307,90 @@ describe('action', () => {
       dir = await fs.mkdtemp(tmpDir + path.sep)
 
       // Add files for glob testing
-      for (let i = 0; i < 65; i++) {
+      for (let i = 0; i < subjectCount; i++) {
+        await fs.writeFile(path.join(dir, `${filename}-${i}`), content)
+
+        // Set-up a Fulcio mock for each subject
+        await mockFulcio({
+          baseURL: 'https://fulcio.githubapp.com',
+          strict: false
+        })
+
+        // Set-up a TSA mock for each subject
+        await mockTSA({ baseURL: 'https://timestamp.githubapp.com' })
+
+        // Set-up a GH API mock for each subject
+        mockAgent
+          .get('https://api.github.com')
+          .intercept({
+            path: /^\/repos\/.*\/.*\/attestations$/,
+            method: 'post'
+          })
+          .reply(201, { id: attestationID })
+      }
+
+      // Set-up a OIDC token mock for each subject
+      scope = nock(tokenURL)
+        .get('/')
+        .query({ audience: 'sigstore' })
+        .times(subjectCount)
+        .reply(200, { value: oidcToken })
+
+      // Set the GH context with private repository visibility and a repo owner.
+      setGHContext({
+        payload: { repository: { visibility: 'private' } },
+        repo: { owner: 'foo', repo: 'bar' }
+      })
+    })
+
+    afterEach(async () => {
+      // Clean-up temp directory
+      await fs.rm(dir, { recursive: true })
+    })
+
+    it('invokes the action w/o error', async () => {
+      const inputs: main.RunInputs = {
+        ...defaultInputs,
+        subjectPath: path.join(dir, `${filename}-*`),
+        predicateType,
+        predicate,
+        githubToken: 'gh-token',
+        batchSize: 2
+      }
+      await main.run(inputs)
+
+      expect(runMock).toHaveReturned()
+      expect(setFailedMock).not.toHaveBeenCalled()
+      expect(infoMock).toHaveBeenNthCalledWith(
+        1,
+        expect.stringMatching('Processing subject batch 1/3')
+      )
+      expect(infoMock).toHaveBeenNthCalledWith(
+        10,
+        expect.stringMatching('Processing subject batch 2/3')
+      )
+      expect(infoMock).toHaveBeenNthCalledWith(
+        19,
+        expect.stringMatching('Processing subject batch 3/3')
+      )
+      expect(scope.isDone()).toBe(true)
+    })
+  })
+
+  describe('when the subject count exceeds the max', () => {
+    let dir = ''
+    const filename = 'subject'
+
+    beforeEach(async () => {
+      const subjectCount = 2501
+      const content = 'file content'
+
+      // Set-up temp directory
+      const tmpDir = await fs.realpath(os.tmpdir())
+      dir = await fs.mkdtemp(tmpDir + path.sep)
+
+      // Add files for glob testing
+      for (let i = 0; i < subjectCount; i++) {
         await fs.writeFile(path.join(dir, `${filename}-${i}`), content)
       }
 
@@ -310,14 +399,6 @@ describe('action', () => {
         payload: { repository: { visibility: 'private' } },
         repo: { owner: 'foo', repo: 'bar' }
       })
-
-      // Mock the action's inputs
-      getInputMock.mockImplementation(
-        mockInput({
-          predicate: '{}',
-          'subject-path': path.join(dir, `${filename}-*`)
-        })
-      )
     })
 
     afterEach(async () => {
@@ -326,27 +407,25 @@ describe('action', () => {
     })
 
     it('sets a failed status', async () => {
-      await main.run()
+      const inputs: main.RunInputs = {
+        ...defaultInputs,
+        subjectPath: path.join(dir, `${filename}-*`),
+        predicateType,
+        predicate,
+        githubToken: 'gh-token'
+      }
+      await main.run(inputs)
 
       expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
         new Error(
-          'Too many subjects specified. The maximum number of subjects is 64.'
+          'Too many subjects specified. The maximum number of subjects is 2500.'
         )
       )
     })
   })
 })
 
-function mockInput(inputs: Record<string, string>): typeof core.getInput {
-  return (name: string): string => {
-    if (name in inputs) {
-      return inputs[name]
-    }
-    return ''
-  }
-}
-
 // Stubbing the GitHub context is a bit tricky. We need to use
 // `Object.defineProperty` because `github.context` is read-only.
 function setGHContext(context: object): void {

__tests__/predicate.test.ts

@@ -1,92 +1,129 @@
 import fs from 'fs/promises'
 import os from 'os'
 import path from 'path'
-import { predicateFromInputs } from '../src/predicate'
+import { predicateFromInputs, PredicateInputs } from '../src/predicate'
 
 describe('subjectFromInputs', () => {
-  afterEach(() => {
-    process.env['INPUT_PREDICATE'] = ''
-    process.env['INPUT_PREDICATE-PATH'] = ''
-    process.env['INPUT_PREDICATE-TYPE'] = ''
-  })
+  const blankInputs: PredicateInputs = {
+    predicateType: '',
+    predicate: '',
+    predicatePath: ''
+  }
 
   describe('when no inputs are provided', () => {
     it('throws an error', () => {
-      expect(() => predicateFromInputs()).toThrow(/predicate-type/i)
+      expect(() => predicateFromInputs(blankInputs)).toThrow(/predicate-type/i)
     })
   })
 
   describe('when neither predicate path nor predicate are provided', () => {
-    beforeEach(() => {
-      process.env['INPUT_PREDICATE-TYPE'] = 'https://example.com/predicate'
-    })
-
     it('throws an error', () => {
-      expect(() => predicateFromInputs()).toThrow(
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType: 'https://example.com/predicate'
+      }
+
+      expect(() => predicateFromInputs(inputs)).toThrow(
         /one of predicate-path or predicate must be provided/i
       )
     })
   })
 
   describe('when both predicate path and predicate are provided', () => {
-    beforeEach(() => {
-      process.env['INPUT_PREDICATE-PATH'] = 'path/to/predicate'
-      process.env['INPUT_PREDICATE'] = '{}'
-      process.env['INPUT_PREDICATE-TYPE'] = 'https://example.com/predicate'
-    })
-
     it('throws an error', () => {
-      expect(() => predicateFromInputs()).toThrow(
+      const inputs: PredicateInputs = {
+        predicateType: 'https://example.com/predicate',
+        predicate: '{}',
+        predicatePath: 'path/to/predicate'
+      }
+
+      expect(() => predicateFromInputs(inputs)).toThrow(
         /only one of predicate-path or predicate may be provided/i
       )
     })
   })
 
   describe('when specifying a predicate path', () => {
-    let dir = ''
-    const filename = 'subject'
+    const predicateType = 'https://example.com/predicate'
     const content = '{}'
+    let predicatePath = ''
 
     beforeEach(async () => {
       // Set-up temp directory
       const tmpDir = await fs.realpath(os.tmpdir())
-      dir = await fs.mkdtemp(tmpDir + path.sep)
+      const dir = await fs.mkdtemp(tmpDir + path.sep)
+
+      const filename = 'subject'
+      predicatePath = path.join(dir, filename)
 
       // Write file to temp directory
-      await fs.writeFile(path.join(dir, filename), content)
+      await fs.writeFile(predicatePath, content)
     })
 
     afterEach(async () => {
       // Clean-up temp directory
-      await fs.rm(dir, { recursive: true })
-    })
-
-    beforeEach(() => {
-      process.env['INPUT_PREDICATE-PATH'] = path.join(dir, filename)
-      process.env['INPUT_PREDICATE-TYPE'] = 'https://example.com/predicate'
+      await fs.rm(path.parse(predicatePath).dir, { recursive: true })
     })
 
     it('returns the predicate', () => {
-      expect(predicateFromInputs()).toEqual({
-        type: 'https://example.com/predicate',
-        params: {}
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicatePath
+      }
+      expect(predicateFromInputs(inputs)).toEqual({
+        type: predicateType,
+        params: JSON.parse(content)
       })
     })
   })
 
+  describe('when specifying a predicate path that does not exist', () => {
+    const predicateType = 'https://example.com/predicate'
+    const predicatePath = 'foo'
+
+    it('returns the predicate', () => {
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicatePath
+      }
+      expect(() => predicateFromInputs(inputs)).toThrow(/file not found/)
+    })
+  })
+
   describe('when specifying a predicate value', () => {
+    const predicateType = 'https://example.com/predicate'
     const content = '{}'
 
-    beforeEach(() => {
-      process.env['INPUT_PREDICATE'] = content
-      process.env['INPUT_PREDICATE-TYPE'] = 'https://example.com/predicate'
-    })
-
     it('returns the predicate', () => {
-      expect(predicateFromInputs()).toEqual({
-        type: 'https://example.com/predicate',
-        params: {}
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicate: content
+      }
+
+      expect(predicateFromInputs(inputs)).toEqual({
+        type: predicateType,
+        params: JSON.parse(content)
       })
     })
   })
+
+  describe('when specifying a predicate value exceeding the max size', () => {
+    const predicateType = 'https://example.com/predicate'
+    const content = JSON.stringify({ a: 'a'.repeat(16 * 1024 * 1024) })
+
+    it('throws an error', () => {
+      const inputs: PredicateInputs = {
+        ...blankInputs,
+        predicateType,
+        predicate: content
+      }
+
+      expect(() => predicateFromInputs(inputs)).toThrow(
+        /predicate string exceeds maximum/
+      )
+    })
+  })
 })

__tests__/style.test.ts

@@ -0,0 +1,15 @@
+import { highlight, mute } from '../src/style'
+
+describe('style', () => {
+  describe('highlight', () => {
+    it('adds cyan color to the string', () => {
+      expect(highlight('foo')).toBe('\x1B[36mfoo\x1B[39m')
+    })
+  })
+
+  describe('mute', () => {
+    it('adds gray color to the string', () => {
+      expect(mute('foo')).toBe('\x1B[38;5;244mfoo\x1B[39m')
+    })
+  })
+})

__tests__/subject.test.ts

@@ -2,47 +2,45 @@ import crypto from 'crypto'
 import fs from 'fs/promises'
 import os from 'os'
 import path from 'path'
-import { subjectFromInputs } from '../src/subject'
+import { subjectFromInputs, SubjectInputs } from '../src/subject'
 
 describe('subjectFromInputs', () => {
-  beforeEach(() => {
-    process.env['INPUT_PUSH-TO-REGISTRY'] = 'false'
-  })
-
-  afterEach(() => {
-    process.env['INPUT_SUBJECT-PATH'] = ''
-    process.env['INPUT_SUBJECT-DIGEST'] = ''
-    process.env['INPUT_SUBJECT-NAME'] = ''
-  })
+  const blankInputs: SubjectInputs = {
+    subjectPath: '',
+    subjectName: '',
+    subjectDigest: ''
+  }
 
   describe('when no inputs are provided', () => {
     it('throws an error', async () => {
-      await expect(subjectFromInputs()).rejects.toThrow(
+      await expect(subjectFromInputs(blankInputs)).rejects.toThrow(
         /one of subject-path or subject-digest must be provided/i
       )
     })
   })
 
   describe('when both subject path and subject digest are provided', () => {
-    beforeEach(() => {
-      process.env['INPUT_SUBJECT-PATH'] = 'path/to/subject'
-      process.env['INPUT_SUBJECT-DIGEST'] = 'digest'
-    })
-
     it('throws an error', async () => {
-      await expect(subjectFromInputs()).rejects.toThrow(
+      const inputs: SubjectInputs = {
+        subjectName: 'foo',
+        subjectPath: 'path/to/subject',
+        subjectDigest: 'digest'
+      }
+
+      await expect(subjectFromInputs(inputs)).rejects.toThrow(
         /only one of subject-path or subject-digest may be provided/i
       )
     })
   })
 
   describe('when subject digest is provided but not the name', () => {
-    beforeEach(() => {
-      process.env['INPUT_SUBJECT-DIGEST'] = 'digest'
-    })
-
     it('throws an error', async () => {
-      await expect(subjectFromInputs()).rejects.toThrow(
+      const inputs: SubjectInputs = {
+        ...blankInputs,
+        subjectDigest: 'digest'
+      }
+
+      await expect(subjectFromInputs(inputs)).rejects.toThrow(
         /subject-name must be provided when using subject-digest/i
       )
     })
@@ -52,39 +50,42 @@ describe('subjectFromInputs', () => {
     const name = 'Subject'
 
     describe('when the digest is malformed', () => {
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-DIGEST'] = 'digest'
-        process.env['INPUT_SUBJECT-NAME'] = name
-      })
-
       it('throws an error', async () => {
-        await expect(subjectFromInputs()).rejects.toThrow(
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectDigest: 'digest',
+          subjectName: name
+        }
+
+        await expect(subjectFromInputs(inputs)).rejects.toThrow(
           /subject-digest must be in the format "sha256:<hex-digest>"/i
         )
       })
     })
 
     describe('when the alogrithm is not supported', () => {
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-DIGEST'] = 'md5:deadbeef'
-        process.env['INPUT_SUBJECT-NAME'] = name
-      })
-
       it('throws an error', async () => {
-        await expect(subjectFromInputs()).rejects.toThrow(
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectDigest: 'md5:deadbeef',
+          subjectName: name
+        }
+
+        await expect(subjectFromInputs(inputs)).rejects.toThrow(
           /subject-digest must be in the format "sha256:<hex-digest>"/i
         )
       })
     })
 
     describe('when the sha256 digest is malformed', () => {
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-DIGEST'] = 'sha256:deadbeef'
-        process.env['INPUT_SUBJECT-NAME'] = name
-      })
-
       it('throws an error', async () => {
-        await expect(subjectFromInputs()).rejects.toThrow(
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectDigest: 'sha256:deadbeef',
+          subjectName: name
+        }
+
+        await expect(subjectFromInputs(inputs)).rejects.toThrow(
           /subject-digest must be in the format "sha256:<hex-digest>"/i
         )
       })
@@ -95,13 +96,14 @@ describe('subjectFromInputs', () => {
       const digest =
         '7d070f6b64d9bcc530fe99cc21eaaa4b3c364e0b2d367d7735671fa202a03b32'
 
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-DIGEST'] = `${alg}:${digest}`
-        process.env['INPUT_SUBJECT-NAME'] = name
-      })
-
       it('returns the subject', async () => {
-        const subject = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectDigest: `${alg}:${digest}`,
+          subjectName: name
+        }
+
+        const subject = await subjectFromInputs(inputs)
 
         expect(subject).toBeDefined()
         expect(subject).toHaveLength(1)
@@ -110,20 +112,21 @@ describe('subjectFromInputs', () => {
       })
     })
 
-    describe('when the push-to-registry is true', () => {
+    describe('when the downcaseName is true', () => {
       const imageName = 'ghcr.io/FOO/bar'
       const alg = 'sha256'
       const digest =
         '7d070f6b64d9bcc530fe99cc21eaaa4b3c364e0b2d367d7735671fa202a03b32'
 
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-DIGEST'] = `${alg}:${digest}`
-        process.env['INPUT_SUBJECT-NAME'] = imageName
-        process.env['INPUT_PUSH-TO-REGISTRY'] = 'true'
-      })
-
       it('returns the subject (with name downcased)', async () => {
-        const subject = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectDigest: `${alg}:${digest}`,
+          subjectName: imageName,
+          downcaseName: true
+        }
+
+        const subject = await subjectFromInputs(inputs)
 
         expect(subject).toBeDefined()
         expect(subject).toHaveLength(1)
@@ -135,19 +138,20 @@ describe('subjectFromInputs', () => {
 
   describe('when specifying a subject path', () => {
     describe('when the file does NOT exist', () => {
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-PATH'] = '/f/a/k/e'
-      })
-
       it('throws an error', async () => {
-        await expect(subjectFromInputs()).rejects.toThrow(
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: '/f/a/k/e'
+        }
+
+        await expect(subjectFromInputs(inputs)).rejects.toThrow(
           /could not find subject at path/i
         )
       })
     })
   })
 
-  describe('when the file eixts', () => {
+  describe('when the file exists', () => {
     let dir = ''
     const filename = 'subject'
     const content = 'file content'
@@ -178,12 +182,13 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when no name is provided', () => {
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-PATH'] = path.join(dir, filename)
-      })
-
       it('returns the subject', async () => {
-        const subject = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: path.join(dir, filename)
+        }
+
+        const subject = await subjectFromInputs(inputs)
 
         expect(subject).toBeDefined()
         expect(subject).toHaveLength(1)
@@ -195,13 +200,14 @@ describe('subjectFromInputs', () => {
     describe('when a name is provided', () => {
       const name = 'mysubject'
 
-      beforeEach(() => {
-        process.env['INPUT_SUBJECT-PATH'] = path.join(dir, filename)
-        process.env['INPUT_SUBJECT-NAME'] = name
-      })
-
       it('returns the subject', async () => {
-        const subject = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: path.join(dir, filename),
+          subjectName: name
+        }
+
+        const subject = await subjectFromInputs(inputs)
 
         expect(subject).toBeDefined()
         expect(subject).toHaveLength(1)
@@ -211,12 +217,13 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when a file glob is supplied', () => {
-      beforeEach(async () => {
-        process.env['INPUT_SUBJECT-PATH'] = path.join(dir, 'subject-*')
-      })
-
       it('returns the multiple subjects', async () => {
-        const subjects = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: path.join(dir, 'subject-*')
+        }
+
+        const subjects = await subjectFromInputs(inputs)
 
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(3)
@@ -230,12 +237,13 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when a file glob is supplied which also matches non-files', () => {
-      beforeEach(async () => {
-        process.env['INPUT_SUBJECT-PATH'] = `${dir}*`
-      })
-
       it('returns the subjects (excluding non-files)', async () => {
-        const subjects = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: `${dir}*`
+        }
+
+        const subjects = await subjectFromInputs(inputs)
 
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(7)
@@ -243,13 +251,13 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when a comma-separated list is supplied', () => {
-      beforeEach(async () => {
-        process.env['INPUT_SUBJECT-PATH'] =
-          `${path.join(dir, 'subject-1')},${path.join(dir, 'subject-2')}`
-      })
-
       it('returns the multiple subjects', async () => {
-        const subjects = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: `${path.join(dir, 'subject-1')},${path.join(dir, 'subject-2')}`
+        }
+
+        const subjects = await subjectFromInputs(inputs)
 
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(2)
@@ -266,13 +274,36 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when a multi-line list is supplied', () => {
-      beforeEach(async () => {
-        process.env['INPUT_SUBJECT-PATH'] =
-          `${path.join(dir, 'subject-0')}\n${path.join(dir, 'subject-2')}`
-      })
-
       it('returns the multiple subjects', async () => {
-        const subjects = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: `${path.join(dir, 'subject-0')}\n${path.join(dir, 'subject-2')}`
+        }
+
+        const subjects = await subjectFromInputs(inputs)
+
+        expect(subjects).toBeDefined()
+        expect(subjects).toHaveLength(2)
+
+        expect(subjects).toContainEqual({
+          name: 'subject-0',
+          digest: { sha256: expectedDigest }
+        })
+        expect(subjects).toContainEqual({
+          name: 'subject-2',
+          digest: { sha256: expectedDigest }
+        })
+      })
+    })
+
+    describe('when an excluding glob is supplied', () => {
+      it('returns the multiple subjects', async () => {
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: `${path.join(dir, 'subject-*')},!${path.join(dir, 'subject-1')}`
+        }
+
+        const subjects = await subjectFromInputs(inputs)
 
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(2)
@@ -289,13 +320,13 @@ describe('subjectFromInputs', () => {
     })
 
     describe('when a multi-line glob list is supplied', () => {
-      beforeEach(async () => {
-        process.env['INPUT_SUBJECT-PATH'] =
-          `${path.join(dir, 'subject-*')}\n  ${path.join(dir, 'other-*')} `
-      })
-
       it('returns the multiple subjects', async () => {
-        const subjects = await subjectFromInputs()
+        const inputs: SubjectInputs = {
+          ...blankInputs,
+          subjectPath: `${path.join(dir, 'subject-*')}\n  ${path.join(dir, 'other-*')} `
+        }
+
+        const subjects = await subjectFromInputs(inputs)
 
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(6)

action.yml

@@ -10,7 +10,7 @@ inputs:
     description: >
       Path to the artifact serving as the subject of the attestation. Must
       specify exactly one of "subject-path" or "subject-digest". May contain a
-      glob pattern or list of paths (total subject count cannot exceed 64).
+      glob pattern or list of paths (total subject count cannot exceed 2500).
     required: false
   subject-digest:
     description: >
@@ -30,13 +30,15 @@ inputs:
     required: true
   predicate:
     description: >
-      String containing the value for the attestation predicate. Must supply
-      exactly one of "predicate-path" or "predicate".
+      String containing the value for the attestation predicate. String length
+      cannot exceed 16MB. Must supply exactly one of "predicate-path" or
+      "predicate".
     required: false
   predicate-path:
     description: >
       Path to the file which contains the content for the attestation predicate.
-      Must supply exactly one of "predicate-path" or "predicate".
+      File size cannot exceed 16MB. Must supply exactly one of "predicate-path"
+      or "predicate".
     required: false
   push-to-registry:
     description: >
@@ -45,6 +47,12 @@ inputs:
       the "subject-digest" parameter be specified. Defaults to false.
     default: false
     required: false
+  show-summary:
+    description: >
+      Whether to attach a list of generated attestations to the workflow run
+      summary page. Defaults to true.
+    default: true
+    required: false
   github-token:
     description: >
       The GitHub token used to make authenticated API requests.

dist/licenses.txt

@@ -1440,22 +1440,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
 
-buffer-equal-constant-time
-BSD-3-Clause
-Copyright (c) 2013, GoInstant Inc., a salesforce.com company
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
-
-* Neither the name of salesforce.com, nor GoInstant, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
 cacache
 ISC
 ISC License
@@ -1579,211 +1563,6 @@ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 
-ecdsa-sig-formatter
-Apache-2.0
-Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
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-
-
 encoding
 MIT
 Copyright (c) 2012-2014 Andris Reinman
@@ -2055,454 +1834,6 @@ Address all questions regarding this license to:
   tjw@cs.Stanford.EDU
 
 
-jsonwebtoken
-MIT
-The MIT License (MIT)
- 
-Copyright (c) 2015 Auth0, Inc. <support@auth0.com> (http://auth0.com)
- 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
- 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
- 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
-jwa
-MIT
-Copyright (c) 2013 Brian J. Brennan
-
-Permission is hereby granted, free of charge, to any person obtaining a copy 
-of this software and associated documentation files (the "Software"), to deal in 
-the Software without restriction, including without limitation the rights to use, 
-copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the 
-Software, and to permit persons to whom the Software is furnished to do so, 
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all 
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
-INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
-PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
-FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-jwks-rsa
-MIT
-The MIT License (MIT)
-
-Copyright (c) 2016 Sandrino Di Mattia
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
-jws
-MIT
-Copyright (c) 2013 Brian J. Brennan
-
-Permission is hereby granted, free of charge, to any person obtaining a copy 
-of this software and associated documentation files (the "Software"), to deal in 
-the Software without restriction, including without limitation the rights to use, 
-copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the 
-Software, and to permit persons to whom the Software is furnished to do so, 
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all 
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
-INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
-PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
-FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-limiter
-MIT
-Copyright (C) 2011 by John Hurliman
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-
-lodash.clonedeep
-MIT
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
-
-Based on Underscore.js, copyright Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-This software consists of voluntary contributions made by many
-individuals. For exact contribution history, see the revision history
-available at https://github.com/lodash/lodash
-
-The following license applies to all parts of this software except as
-documented below:
-
-====
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-====
-
-Copyright and related rights for sample code are waived via CC0. Sample
-code is defined as all source code displayed within the prose of the
-documentation.
-
-CC0: http://creativecommons.org/publicdomain/zero/1.0/
-
-====
-
-Files located in the node_modules and vendor directories are externally
-maintained libraries used by this software which have their own
-licenses; we recommend you read them, as their terms may differ from the
-terms above.
-
-
-lodash.includes
-MIT
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
-
-Based on Underscore.js, copyright Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-This software consists of voluntary contributions made by many
-individuals. For exact contribution history, see the revision history
-available at https://github.com/lodash/lodash
-
-The following license applies to all parts of this software except as
-documented below:
-
-====
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-====
-
-Copyright and related rights for sample code are waived via CC0. Sample
-code is defined as all source code displayed within the prose of the
-documentation.
-
-CC0: http://creativecommons.org/publicdomain/zero/1.0/
-
-====
-
-Files located in the node_modules and vendor directories are externally
-maintained libraries used by this software which have their own
-licenses; we recommend you read them, as their terms may differ from the
-terms above.
-
-
-lodash.isboolean
-MIT
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-lodash.isinteger
-MIT
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
-
-Based on Underscore.js, copyright Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-This software consists of voluntary contributions made by many
-individuals. For exact contribution history, see the revision history
-available at https://github.com/lodash/lodash
-
-The following license applies to all parts of this software except as
-documented below:
-
-====
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-====
-
-Copyright and related rights for sample code are waived via CC0. Sample
-code is defined as all source code displayed within the prose of the
-documentation.
-
-CC0: http://creativecommons.org/publicdomain/zero/1.0/
-
-====
-
-Files located in the node_modules and vendor directories are externally
-maintained libraries used by this software which have their own
-licenses; we recommend you read them, as their terms may differ from the
-terms above.
-
-
-lodash.isnumber
-MIT
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-lodash.isplainobject
-MIT
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
-
-Based on Underscore.js, copyright Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-This software consists of voluntary contributions made by many
-individuals. For exact contribution history, see the revision history
-available at https://github.com/lodash/lodash
-
-The following license applies to all parts of this software except as
-documented below:
-
-====
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-====
-
-Copyright and related rights for sample code are waived via CC0. Sample
-code is defined as all source code displayed within the prose of the
-documentation.
-
-CC0: http://creativecommons.org/publicdomain/zero/1.0/
-
-====
-
-Files located in the node_modules and vendor directories are externally
-maintained libraries used by this software which have their own
-licenses; we recommend you read them, as their terms may differ from the
-terms above.
-
-
-lodash.isstring
-MIT
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-lodash.once
-MIT
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
-
-Based on Underscore.js, copyright Jeremy Ashkenas,
-DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
-
-This software consists of voluntary contributions made by many
-individuals. For exact contribution history, see the revision history
-available at https://github.com/lodash/lodash
-
-The following license applies to all parts of this software except as
-documented below:
-
-====
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-====
-
-Copyright and related rights for sample code are waived via CC0. Sample
-code is defined as all source code displayed within the prose of the
-documentation.
-
-CC0: http://creativecommons.org/publicdomain/zero/1.0/
-
-====
-
-Files located in the node_modules and vendor directories are externally
-maintained libraries used by this software which have their own
-licenses; we recommend you read them, as their terms may differ from the
-terms above.
-
-
 lru-cache
 ISC
 The ISC License
@@ -2522,31 +1853,6 @@ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 
-lru-memoizer
-MIT
-The MIT License (MIT)
-
-Copyright (c) 2016 JOSE FERNANDO ROMANIELLO <jfromaniello@gmail.com> (http://joseoncode.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
 make-fetch-happen
 ISC
 ISC License
@@ -2929,25 +2235,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
 
-pseudomap
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
 retry
 MIT
 Copyright (c) 2011:
@@ -2973,31 +2260,6 @@ Felix Geisendörfer (felix@debuggable.com)
  THE SOFTWARE.
 
 
-safe-buffer
-MIT
-The MIT License (MIT)
-
-Copyright (c) Feross Aboukhadijeh
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-
 safer-buffer
 MIT
 MIT License

package.json

@@ -1,7 +1,7 @@
 {
   "name": "actions/attest",
   "description": "Generate signed attestations for workflow artifacts",
-  "version": "1.1.2",
+  "version": "1.4.1",
   "author": "",
   "private": true,
   "homepage": "https://github.com/actions/attest",
@@ -69,33 +69,33 @@
     ]
   },
   "dependencies": {
-    "@actions/attest": "^1.2.1",
+    "@actions/attest": "^1.4.1",
     "@actions/core": "^1.10.1",
-    "@actions/glob": "^0.4.0",
-    "@sigstore/oci": "^0.3.3",
-    "csv-parse": "^5.5.5"
+    "@actions/glob": "^0.5.0",
+    "@sigstore/oci": "^0.3.7",
+    "csv-parse": "^5.5.6"
   },
   "devDependencies": {
-    "@sigstore/mock": "^0.7.3",
+    "@sigstore/mock": "^0.7.5",
     "@types/jest": "^29.5.12",
     "@types/make-fetch-happen": "^10.0.4",
-    "@types/node": "^20.12.11",
-    "@typescript-eslint/eslint-plugin": "^7.9.0",
-    "@typescript-eslint/parser": "^7.9.0",
+    "@types/node": "^22.4.1",
+    "@typescript-eslint/eslint-plugin": "^7.18.0",
+    "@typescript-eslint/parser": "^7.18.0",
     "@vercel/ncc": "^0.38.1",
     "eslint": "^8.57.0",
-    "eslint-plugin-github": "^4.10.2",
-    "eslint-plugin-jest": "^28.5.0",
-    "eslint-plugin-jsonc": "^2.15.1",
-    "eslint-plugin-prettier": "^5.1.3",
+    "eslint-plugin-github": "^5.0.1",
+    "eslint-plugin-jest": "^28.8.0",
+    "eslint-plugin-jsonc": "^2.16.0",
+    "eslint-plugin-prettier": "^5.2.1",
     "jest": "^29.7.0",
     "js-yaml": "^4.1.0",
-    "markdownlint-cli": "^0.40.0",
+    "markdownlint-cli": "^0.41.0",
     "nock": "^13.5.4",
-    "prettier": "^3.2.5",
+    "prettier": "^3.3.3",
     "prettier-eslint": "^16.3.0",
-    "ts-jest": "^29.1.2",
-    "typescript": "^5.4.5",
+    "ts-jest": "^29.2.4",
+    "typescript": "^5.5.4",
     "undici": "^5.28.4"
   }
 }

src/attest.ts

@@ -0,0 +1,67 @@
+import { Attestation, Predicate, Subject, attest } from '@actions/attest'
+import { attachArtifactToImage, getRegistryCredentials } from '@sigstore/oci'
+
+const OCI_TIMEOUT = 30000
+const OCI_RETRY = 3
+
+export type SigstoreInstance = 'public-good' | 'github'
+export type AttestResult = Attestation & {
+  subjectName: string
+  subjectDigest: string
+  attestationDigest?: string
+}
+
+export const createAttestation = async (
+  subject: Subject,
+  predicate: Predicate,
+  opts: {
+    sigstoreInstance: SigstoreInstance
+    pushToRegistry: boolean
+    githubToken: string
+  }
+): Promise<AttestResult> => {
+  // Sign provenance w/ Sigstore
+  const attestation = await attest({
+    subjectName: subject.name,
+    subjectDigest: subject.digest,
+    predicateType: predicate.type,
+    predicate: predicate.params,
+    sigstore: opts.sigstoreInstance,
+    token: opts.githubToken
+  })
+
+  const subDigest = subjectDigest(subject)
+  const result: AttestResult = {
+    ...attestation,
+    subjectName: subject.name,
+    subjectDigest: subDigest
+  }
+
+  if (opts.pushToRegistry) {
+    const credentials = getRegistryCredentials(subject.name)
+    const artifact = await attachArtifactToImage({
+      credentials,
+      imageName: subject.name,
+      imageDigest: subDigest,
+      artifact: Buffer.from(JSON.stringify(attestation.bundle)),
+      mediaType: attestation.bundle.mediaType,
+      annotations: {
+        'dev.sigstore.bundle.content': 'dsse-envelope',
+        'dev.sigstore.bundle.predicateType': predicate.type
+      },
+      fetchOpts: { timeout: OCI_TIMEOUT, retry: OCI_RETRY }
+    })
+
+    // Add the attestation's digest to the result
+    result.attestationDigest = artifact.digest
+  }
+
+  return result
+}
+
+// Returns the subject's digest as a formatted string of the form
+// "<algorithm>:<digest>".
+const subjectDigest = (subject: Subject): string => {
+  const alg = Object.keys(subject.digest).sort()[0]
+  return `${alg}:${subject.digest[alg]}`
+}

src/index.ts

@@ -1,7 +1,28 @@
 /**
  * The entrypoint for the action.
  */
-import { run } from './main'
+import * as core from '@actions/core'
+import { run, RunInputs } from './main'
+
+const DEFAULT_BATCH_SIZE = 50
+
+const inputs: RunInputs = {
+  subjectPath: core.getInput('subject-path'),
+  subjectName: core.getInput('subject-name'),
+  subjectDigest: core.getInput('subject-digest'),
+  predicateType: core.getInput('predicate-type'),
+  predicate: core.getInput('predicate'),
+  predicatePath: core.getInput('predicate-path'),
+  pushToRegistry: core.getBooleanInput('push-to-registry'),
+  showSummary: core.getBooleanInput('show-summary'),
+  githubToken: core.getInput('github-token'),
+  // undocumented -- not part of public interface
+  privateSigning: ['true', 'True', 'TRUE', '1'].includes(
+    core.getInput('private-signing')
+  ),
+  // internal only
+  batchSize: DEFAULT_BATCH_SIZE
+}
 
 // eslint-disable-next-line @typescript-eslint/no-floating-promises
-run()
+run(inputs)

src/main.ts

@@ -1,26 +1,26 @@
-import { Attestation, Predicate, Subject, attest } from '@actions/attest'
 import * as core from '@actions/core'
 import * as github from '@actions/github'
-import { attachArtifactToImage, getRegistryCredentials } from '@sigstore/oci'
 import fs from 'fs'
 import os from 'os'
 import path from 'path'
+import { AttestResult, SigstoreInstance, createAttestation } from './attest'
 import { SEARCH_PUBLIC_GOOD_URL } from './endpoints'
-import { predicateFromInputs } from './predicate'
-import { subjectFromInputs } from './subject'
+import { PredicateInputs, predicateFromInputs } from './predicate'
+import * as style from './style'
+import { SubjectInputs, subjectFromInputs } from './subject'
 
-type SigstoreInstance = 'public-good' | 'github'
-type AttestedSubject = { subject: Subject; attestationID: string }
-
-const COLOR_CYAN = '\x1B[36m'
-const COLOR_GRAY = '\x1B[38;5;244m'
-const COLOR_DEFAULT = '\x1B[39m'
 const ATTESTATION_FILE_NAME = 'attestation.jsonl'
+const DELAY_INTERVAL_MS = 75
+const DELAY_MAX_MS = 1200
 
-const MAX_SUBJECT_COUNT = 64
-
-const OCI_TIMEOUT = 2000
-const OCI_RETRY = 3
+export type RunInputs = SubjectInputs &
+  PredicateInputs & {
+    pushToRegistry: boolean
+    githubToken: string
+    showSummary: boolean
+    privateSigning: boolean
+    batchSize: number
+  }
 
 /* istanbul ignore next */
 const logHandler = (level: string, ...args: unknown[]): void => {
@@ -34,7 +34,7 @@ const logHandler = (level: string, ...args: unknown[]): void => {
  * The main function for the action.
  * @returns {Promise<void>} Resolves when the action is complete.
  */
-export async function run(): Promise<void> {
+export async function run(inputs: RunInputs): Promise<void> {
   process.on('log', logHandler)
 
   // Provenance visibility will be public ONLY if we can confirm that the
@@ -42,61 +42,64 @@ export async function run(): Promise<void> {
   // Otherwise, it will be private.
   const sigstoreInstance: SigstoreInstance =
     github.context.payload.repository?.visibility === 'public' &&
-    core.getInput('private-signing') !== 'true'
+    !inputs.privateSigning
       ? 'public-good'
       : 'github'
 
   try {
-    const atts: AttestedSubject[] = []
+    const atts: AttestResult[] = []
     if (!process.env.ACTIONS_ID_TOKEN_REQUEST_URL) {
       throw new Error(
         'missing "id-token" permission. Please add "permissions: id-token: write" to your workflow.'
       )
     }
 
-    // Gather list of subjets
-    const subjects = await subjectFromInputs()
-    if (subjects.length > MAX_SUBJECT_COUNT) {
-      throw new Error(
-        `Too many subjects specified. The maximum number of subjects is ${MAX_SUBJECT_COUNT}.`
-      )
-    }
+    const subjects = await subjectFromInputs({
+      ...inputs,
+      downcaseName: inputs.pushToRegistry
+    })
+    const predicate = predicateFromInputs(inputs)
 
-    const predicate = predicateFromInputs()
     const outputPath = path.join(tempDir(), ATTESTATION_FILE_NAME)
-
-    // Generate attestations for each subject serially
-    for (const subject of subjects) {
-      const att = await createAttestation(subject, predicate, sigstoreInstance)
-
-      // Write attestation bundle to output file
-      fs.writeFileSync(outputPath, JSON.stringify(att.bundle) + os.EOL, {
-        encoding: 'utf-8',
-        flag: 'a'
-      })
-
-      if (att.attestationID) {
-        atts.push({ subject, attestationID: att.attestationID })
-      }
-    }
-
-    if (atts.length > 0) {
-      core.summary.addHeading(
-        /* istanbul ignore next */
-        atts.length > 1 ? 'Attestations Created' : 'Attestation Created',
-        3
-      )
-
-      for (const { subject, attestationID } of atts) {
-        core.summary.addLink(
-          `${subject.name}@${subjectDigest(subject)}`,
-          attestationURL(attestationID)
-        )
-      }
-      core.summary.write()
-    }
-
     core.setOutput('bundle-path', outputPath)
+
+    const subjectChunks = chunkArray(subjects, inputs.batchSize)
+
+    // Generate attestations for each subject serially, working in batches
+    for (let i = 0; i < subjectChunks.length; i++) {
+      if (subjectChunks.length > 1) {
+        core.info(`Processing subject batch ${i + 1}/${subjectChunks.length}`)
+      }
+
+      // Calculate the delay time for this batch
+      const delayTime = delay(i)
+
+      for (const subject of subjectChunks[i]) {
+        // Delay between attestations (only when chunk size > 1)
+        if (i > 0) {
+          await new Promise(resolve => setTimeout(resolve, delayTime))
+        }
+
+        const att = await createAttestation(subject, predicate, {
+          sigstoreInstance,
+          pushToRegistry: inputs.pushToRegistry,
+          githubToken: inputs.githubToken
+        })
+        atts.push(att)
+
+        logAttestation(att, sigstoreInstance)
+
+        // Write attestation bundle to output file
+        fs.writeFileSync(outputPath, JSON.stringify(att.bundle) + os.EOL, {
+          encoding: 'utf-8',
+          flag: 'a'
+        })
+      }
+    }
+
+    if (inputs.showSummary) {
+      logSummary(atts)
+    }
   } catch (err) {
     // Fail the workflow run if an error occurs
     core.setFailed(
@@ -108,7 +111,9 @@ export async function run(): Promise<void> {
     if (err instanceof Error && 'cause' in err) {
       const innerErr = err.cause
       core.info(
-        mute(innerErr instanceof Error ? innerErr.toString() : `${innerErr}`)
+        style.mute(
+          innerErr instanceof Error ? innerErr.toString() : `${innerErr}`
+        )
       )
     }
   } finally {
@@ -116,27 +121,19 @@ export async function run(): Promise<void> {
   }
 }
 
-const createAttestation = async (
-  subject: Subject,
-  predicate: Predicate,
+// Log details about the attestation to the GitHub Actions run
+const logAttestation = (
+  attestation: AttestResult,
   sigstoreInstance: SigstoreInstance
-): Promise<Attestation> => {
-  // Sign provenance w/ Sigstore
-  const attestation = await attest({
-    subjectName: subject.name,
-    subjectDigest: subject.digest,
-    predicateType: predicate.type,
-    predicate: predicate.params,
-    sigstore: sigstoreInstance,
-    token: core.getInput('github-token')
-  })
-
-  core.info(`Attestation created for ${subject.name}@${subjectDigest(subject)}`)
+): void => {
+  core.info(
+    `Attestation created for ${attestation.subjectName}@${attestation.subjectDigest}`
+  )
 
   const instanceName =
     sigstoreInstance === 'public-good' ? 'Public Good' : 'GitHub'
   core.startGroup(
-    highlight(
+    style.highlight(
       `Attestation signed using certificate from ${instanceName} Sigstore instance`
     )
   )
@@ -145,43 +142,46 @@ const createAttestation = async (
 
   if (attestation.tlogID) {
     core.info(
-      highlight('Attestation signature uploaded to Rekor transparency log')
+      style.highlight(
+        'Attestation signature uploaded to Rekor transparency log'
+      )
     )
     core.info(`${SEARCH_PUBLIC_GOOD_URL}?logIndex=${attestation.tlogID}`)
   }
 
   if (attestation.attestationID) {
-    core.info(highlight('Attestation uploaded to repository'))
+    core.info(style.highlight('Attestation uploaded to repository'))
     core.info(attestationURL(attestation.attestationID))
   }
 
-  if (core.getBooleanInput('push-to-registry', { required: false })) {
-    const credentials = getRegistryCredentials(subject.name)
-    const artifact = await attachArtifactToImage({
-      credentials,
-      imageName: subject.name,
-      imageDigest: subjectDigest(subject),
-      artifact: Buffer.from(JSON.stringify(attestation.bundle)),
-      mediaType: attestation.bundle.mediaType,
-      annotations: {
-        'dev.sigstore.bundle.content': 'dsse-envelope',
-        'dev.sigstore.bundle.predicateType': core.getInput('predicate-type')
-      },
-      fetchOpts: { timeout: OCI_TIMEOUT, retry: OCI_RETRY }
-    })
-    core.info(highlight('Attestation uploaded to registry'))
-    core.info(`${subject.name}@${artifact.digest}`)
+  if (attestation.attestationDigest) {
+    core.info(style.highlight('Attestation uploaded to registry'))
+    core.info(`${attestation.subjectName}@${attestation.attestationDigest}`)
   }
-
-  return attestation
 }
 
-// Emphasis string using ANSI color codes
-const highlight = (str: string): string => `${COLOR_CYAN}${str}${COLOR_DEFAULT}`
+// Attach summary information to the GitHub Actions run
+const logSummary = (attestations: AttestResult[]): void => {
+  if (attestations.length > 0) {
+    core.summary.addHeading(
+      /* istanbul ignore next */
+      attestations.length > 1 ? 'Attestations Created' : 'Attestation Created',
+      3
+    )
 
-// De-emphasize string using ANSI color codes
-/* istanbul ignore next */
-const mute = (str: string): string => `${COLOR_GRAY}${str}${COLOR_DEFAULT}`
+    const listItems = []
+    for (const { subjectName, subjectDigest, attestationID } of attestations) {
+      if (attestationID) {
+        listItems.push(
+          `<a href="${attestationURL(attestationID)}">${subjectName}@${subjectDigest}</a>`
+        )
+      }
+    }
+
+    core.summary.addList(listItems)
+    core.summary.write()
+  }
+}
 
 const tempDir = (): string => {
   const basePath = process.env['RUNNER_TEMP']
@@ -194,12 +194,18 @@ const tempDir = (): string => {
   return fs.mkdtempSync(path.join(basePath, path.sep))
 }
 
-// Returns the subject's digest as a formatted string of the form
-// "<algorithm>:<digest>".
-const subjectDigest = (subject: Subject): string => {
-  const alg = Object.keys(subject.digest).sort()[0]
-  return `${alg}:${subject.digest[alg]}`
+// Transforms an array into an array of arrays, each containing at most
+// `chunkSize` elements.
+const chunkArray = <T>(array: T[], chunkSize: number): T[][] => {
+  return Array.from(
+    { length: Math.ceil(array.length / chunkSize) },
+    (_, index) => array.slice(index * chunkSize, (index + 1) * chunkSize)
+  )
 }
 
+// Calculate the delay time for a given iteration
+const delay = (iteration: number): number =>
+  Math.min(DELAY_INTERVAL_MS * 2 ** iteration, DELAY_MAX_MS)
+
 const attestationURL = (id: string): string =>
   `${github.context.serverUrl}/${github.context.repo.owner}/${github.context.repo.repo}/attestations/${id}`

src/predicate.ts

@@ -1,26 +1,56 @@
-import * as core from '@actions/core'
 import fs from 'fs'
 
 import type { Predicate } from '@actions/attest'
 
+export type PredicateInputs = {
+  predicateType: string
+  predicate: string
+  predicatePath: string
+}
+
+const MAX_PREDICATE_SIZE_BYTES = 16 * 1024 * 1024
+
 // Returns the predicate specified by the action's inputs. The predicate value
 // may be specified as a path to a file or as a string.
-export const predicateFromInputs = (): Predicate => {
-  const predicateType = core.getInput('predicate-type', { required: true })
-  const predicateStr = core.getInput('predicate', { required: false })
-  const predicatePath = core.getInput('predicate-path', { required: false })
+export const predicateFromInputs = (inputs: PredicateInputs): Predicate => {
+  const { predicateType, predicate, predicatePath } = inputs
 
-  if (!predicatePath && !predicateStr) {
+  if (!predicateType) {
+    throw new Error('predicate-type must be provided')
+  }
+
+  if (!predicatePath && !predicate) {
     throw new Error('One of predicate-path or predicate must be provided')
   }
 
-  if (predicatePath && predicateStr) {
+  if (predicatePath && predicate) {
     throw new Error('Only one of predicate-path or predicate may be provided')
   }
 
-  const params = predicatePath
-    ? fs.readFileSync(predicatePath, 'utf-8')
-    : predicateStr
+  let params: string = predicate
+
+  if (predicatePath) {
+    if (!fs.existsSync(predicatePath)) {
+      throw new Error(`predicate file not found: ${predicatePath}`)
+    }
+
+    /* istanbul ignore next */
+    if (fs.statSync(predicatePath).size > MAX_PREDICATE_SIZE_BYTES) {
+      throw new Error(
+        `predicate file exceeds maximum allowed size: ${MAX_PREDICATE_SIZE_BYTES} bytes`
+      )
+    }
+
+    params = fs.readFileSync(predicatePath, 'utf-8')
+  } else {
+    if (predicate.length > MAX_PREDICATE_SIZE_BYTES) {
+      throw new Error(
+        `predicate string exceeds maximum allowed size: ${MAX_PREDICATE_SIZE_BYTES} bytes`
+      )
+    }
+
+    params = predicate
+  }
 
   return { type: predicateType, params: JSON.parse(params) }
 }

src/style.ts

@@ -0,0 +1,11 @@
+const COLOR_CYAN = '\x1B[36m'
+const COLOR_GRAY = '\x1B[38;5;244m'
+const COLOR_DEFAULT = '\x1B[39m'
+
+// Emphasis string using ANSI color codes
+export const highlight = (str: string): string =>
+  `${COLOR_CYAN}${str}${COLOR_DEFAULT}`
+
+// De-emphasize string using ANSI color codes
+export const mute = (str: string): string =>
+  `${COLOR_GRAY}${str}${COLOR_DEFAULT}`

src/subject.ts

@@ -1,4 +1,3 @@
-import * as core from '@actions/core'
 import * as glob from '@actions/glob'
 import crypto from 'crypto'
 import { parse } from 'csv-parse/sync'
@@ -7,19 +6,23 @@ import path from 'path'
 
 import type { Subject } from '@actions/attest'
 
+const MAX_SUBJECT_COUNT = 2500
 const DIGEST_ALGORITHM = 'sha256'
 
+export type SubjectInputs = {
+  subjectPath: string
+  subjectName: string
+  subjectDigest: string
+  downcaseName?: boolean
+}
 // Returns the subject specified by the action's inputs. The subject may be
 // specified as a path to a file or as a digest. If a path is provided, the
 // file's digest is calculated and returned along with the subject's name. If a
 // digest is provided, the name must also be provided.
-export const subjectFromInputs = async (): Promise<Subject[]> => {
-  const subjectPath = core.getInput('subject-path', { required: false })
-  const subjectDigest = core.getInput('subject-digest', { required: false })
-  const subjectName = core.getInput('subject-name', { required: false })
-  const pushToRegistry = core.getBooleanInput('push-to-registry', {
-    required: false
-  })
+export const subjectFromInputs = async (
+  inputs: SubjectInputs
+): Promise<Subject[]> => {
+  const { subjectPath, subjectDigest, subjectName, downcaseName } = inputs
 
   if (!subjectPath && !subjectDigest) {
     throw new Error('One of subject-path or subject-digest must be provided')
@@ -37,7 +40,7 @@ export const subjectFromInputs = async (): Promise<Subject[]> => {
 
   // If push-to-registry is enabled, ensure the subject name is lowercase
   // to conform to OCI image naming conventions
-  const name = pushToRegistry ? subjectName.toLowerCase() : subjectName
+  const name = downcaseName ? subjectName.toLowerCase() : subjectName
 
   if (subjectPath) {
     return await getSubjectFromPath(subjectPath, name)
@@ -52,34 +55,38 @@ const getSubjectFromPath = async (
   subjectPath: string,
   subjectName?: string
 ): Promise<Subject[]> => {
-  const subjects: Subject[] = []
+  const digestedSubjects: Subject[] = []
 
   // Parse the list of subject paths
-  const subjectPaths = parseList(subjectPath)
+  const subjectPaths = parseList(subjectPath).join('\n')
 
-  for (const subPath of subjectPaths) {
-    // Expand the globbed path to a list of files
-    /* eslint-disable-next-line github/no-then */
-    const files = await glob.create(subPath).then(async g => g.glob())
+  // Expand the globbed paths to a list of files
+  /* eslint-disable-next-line github/no-then */
+  const files = await glob.create(subjectPaths).then(async g => g.glob())
 
-    for (const file of files) {
-      // Skip anything that is NOT a file
-      if (!fs.statSync(file).isFile()) {
-        continue
-      }
-
-      const name = subjectName || path.parse(file).base
-      const digest = await digestFile(DIGEST_ALGORITHM, file)
-
-      subjects.push({ name, digest: { [DIGEST_ALGORITHM]: digest } })
-    }
+  if (files.length > MAX_SUBJECT_COUNT) {
+    throw new Error(
+      `Too many subjects specified. The maximum number of subjects is ${MAX_SUBJECT_COUNT}.`
+    )
   }
 
-  if (subjects.length === 0) {
+  for (const file of files) {
+    // Skip anything that is NOT a file
+    if (!fs.statSync(file).isFile()) {
+      continue
+    }
+
+    const name = subjectName || path.parse(file).base
+    const digest = await digestFile(DIGEST_ALGORITHM, file)
+
+    digestedSubjects.push({ name, digest: { [DIGEST_ALGORITHM]: digest } })
+  }
+
+  if (digestedSubjects.length === 0) {
     throw new Error(`Could not find subject at path ${subjectPath}`)
   }
 
-  return Promise.all(subjects)
+  return digestedSubjects
 }
 
 // Returns the subject specified by the digest of a file. The digest is returned