Merge branch 'main' into adjust_summary_format

Bump zod from 3.20.6 to 3.21.0

.gitignore

@@ -100,3 +100,5 @@ Thumbs.db
 # Ignore built ts files
 __tests__/runner/*
 lib/**/*
+
+tmp

README.md

@@ -66,25 +66,25 @@ jobs:
 
 Configure this action by either inlining these options in your workflow file, or by using an external configuration file. All configuration options are optional.
 
-| Option                | Usage                                                                                                                                                                             | Possible values                                                                          | Default value |
-|-----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------|---------------|
-| `fail-on-severity`    | Defines the threshold for the level of severity. The action will fail on any pull requests that introduce vulnerabilities of the specified severity level or higher.              | `low`, `moderate`, `high`, `critical`                                                    | `low`         |
-| `allow-licenses`*     | Contains a list of allowed licenses. The action will fail on pull requests that introduce dependencies with licenses that do not match the list.                                  | Any [SPDX-compliant identifier(s)](https://spdx.org/licenses/) | none          |
-| `deny-licenses`*      | Contains a list of prohibited licenses. The action will fail on pull requests that introduce dependencies with licenses that match the list.                                      | Any [SPDX-compliant identifier(s)](https://spdx.org/licenses/) | none          |
-| `fail-on-scopes`†      | Contains a list of strings of the build environments you want to support. The action will fail on pull requests that introduce vulnerabilities in the scopes that match the list. |`runtime`, `development`, `unknown`                                                      | `runtime`     |
-| `allow-ghsas`         | Contains a list of GitHub Advisory Database IDs that can be skipped during detection.                                                                                             | Any GHSAs from the [GitHub Advisory Database](https://github.com/advisories)             | none          |
-| `license-check`       | Enable or disable the license check performed by the action.                                                                                                                                | `true`, `false`                                                                          | `true`       |
-| `vulnerability-check` | Enable or disable the vulnerability check performed by the action.                                                                                                                          | `true`, `false`                                                                          | `true`       |
-| `base-ref`/`head-ref` | Provide custom git references for the git base/head when performing the comparison check. This is only used for event types other than `pull_request` and `pull_request_target`.  | Any valid git ref(s) in your project                                                     | none          |
+| Option                  | Usage                                                                                                                                                                             | Possible values                                                              | Default value |
+| ----------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- | ------------- |
+| `fail-on-severity`      | Defines the threshold for the level of severity. The action will fail on any pull requests that introduce vulnerabilities of the specified severity level or higher.              | `low`, `moderate`, `high`, `critical`                                        | `low`         |
+| `allow-licenses`*       | Contains a list of allowed licenses. The action will fail on pull requests that introduce dependencies with licenses that do not match the list.                                  | Any [SPDX-compliant identifier(s)](https://spdx.org/licenses/)               | none          |
+| `deny-licenses`*        | Contains a list of prohibited licenses. The action will fail on pull requests that introduce dependencies with licenses that match the list.                                      | Any [SPDX-compliant identifier(s)](https://spdx.org/licenses/)               | none          |
+| `fail-on-scopes`†       | Contains a list of strings of the build environments you want to support. The action will fail on pull requests that introduce vulnerabilities in the scopes that match the list. | `runtime`, `development`, `unknown`                                          | `runtime`     |
+| `allow-ghsas`           | Contains a list of GitHub Advisory Database IDs that can be skipped during detection.                                                                                             | Any GHSAs from the [GitHub Advisory Database](https://github.com/advisories) | none          |
+| `license-check`         | Enable or disable the license check performed by the action.                                                                                                                      | `true`, `false`                                                              | `true`        |
+| `vulnerability-check`   | Enable or disable the vulnerability check performed by the action.                                                                                                                | `true`, `false`                                                              | `true`        |
+| `base-ref`/`head-ref`   | Provide custom git references for the git base/head when performing the comparison check. This is only used for event types other than `pull_request` and `pull_request_target`.  | Any valid git ref(s) in your project                                         | none          |
+| `comment-summary-in-pr` | Enable or disable reporting the review summary as a comment in the pull request. If enabled, you must give the workflow or job permission `pull-requests: write`.                 | `true`, `false`                                                              | `false`       |
 
 *not supported for use with GitHub Enterprise Server
 
-†will be supported with GitHub Enterprise Server 3.8 
-
+†will be supported with GitHub Enterprise Server 3.8
 
 ### Inline Configuration
 
-You can pass options to the Dependency Review GitHub Action using your workflow file. 
+You can pass options to the Dependency Review GitHub Action using your workflow file.
 
 #### Example
 
@@ -112,10 +112,10 @@ jobs:
 
 You can use an external configuration file to specify the settings for this action. It can be a local file or a file in an external repository. Refer to the following options for the specification.
 
-| Option                | Usage                                                                                                                                                                                    | Possible values                                                                                                                |
-|-----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
-| `config-file`         | A path to a file in the current repository or an external repository. Use this syntax for external files: `OWNER/REPOSITORY/FILENAME@BRANCH`                                             | **Local file**: `./.github/dependency-review-config.yml` <br> **External repo**: `github/octorepo/dependency-review-config.yml@main` |
-| `external-repo-token` | Specifies a token for fetching the configuration file. It is required if the file resides in a private external repository and for all GitHub Enterprise Server repositories. Create a token in [developer settings](https://github.com/settings/tokens). | Any token with `read` permissions to the repository hosting the config file.                                                   |
+| Option                | Usage                                                                                                                                                                                                                                                     | Possible values                                                                                                                      |
+| --------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
+| `config-file`         | A path to a file in the current repository or an external repository. Use this syntax for external files: `OWNER/REPOSITORY/FILENAME@BRANCH`                                                                                                              | **Local file**: `./.github/dependency-review-config.yml` <br> **External repo**: `github/octorepo/dependency-review-config.yml@main` |
+| `external-repo-token` | Specifies a token for fetching the configuration file. It is required if the file resides in a private external repository and for all GitHub Enterprise Server repositories. Create a token in [developer settings](https://github.com/settings/tokens). | Any token with `read` permissions to the repository hosting the config file.                                                         |
 
 #### Example
 
@@ -128,7 +128,7 @@ Start by specifying that you will be using an external configuration file:
     config-file: './.github/dependency-review-config.yml'
 ```
 
-And then create the file in the path you just specified: 
+And then create the file in the path you just specified:
 
 ```yaml
 fail-on-severity: 'critical'

__tests__/config.test.ts

@@ -5,13 +5,13 @@ import * as Utils from '../src/utils'
 
 // GitHub Action inputs come in the form of environment variables
 // with an INPUT prefix (e.g. INPUT_FAIL-ON-SEVERITY)
-function setInput(input: string, value: string) {
+function setInput(input: string, value: string): void {
   process.env[`INPUT_${input.toUpperCase()}`] = value
 }
 
 // We want a clean ENV before each test. We use `delete`
 // since we want `undefined` values and not empty strings.
-function clearInputs() {
+function clearInputs(): void {
   const allowedOptions = [
     'FAIL-ON-SEVERITY',
     'FAIL-ON-SCOPES',
@@ -22,9 +22,11 @@ function clearInputs() {
     'VULNERABILITY-CHECK',
     'CONFIG-FILE',
     'BASE-REF',
-    'HEAD-REF'
+    'HEAD-REF',
+    'COMMENT-SUMMARY-IN-PR'
   ]
 
+  // eslint-disable-next-line github/array-foreach
   allowedOptions.forEach(option => {
     delete process.env[`INPUT_${option.toUpperCase()}`]
   })
@@ -237,7 +239,7 @@ test('it supports comma-separated lists', async () => {
     'config-file',
     './__tests__/fixtures/inline-license-config-sample.yml'
   )
-  let config = await readConfig()
+  const config = await readConfig()
 
   expect(config.allow_licenses).toEqual(['MIT', 'GPL-2.0-only'])
 })

__tests__/filter.test.ts

@@ -1,12 +1,12 @@
 import {expect, test} from '@jest/globals'
-import {Change, Changes} from '../src/schemas'
+import {Change} from '../src/schemas'
 import {
   filterChangesBySeverity,
   filterChangesByScopes,
   filterAllowedAdvisories
 } from '../src/filter'
 
-let npmChange: Change = {
+const npmChange: Change = {
   manifest: 'package.json',
   change_type: 'added',
   ecosystem: 'npm',
@@ -26,7 +26,7 @@ let npmChange: Change = {
   ]
 }
 
-let rubyChange: Change = {
+const rubyChange: Change = {
   change_type: 'added',
   manifest: 'Gemfile.lock',
   ecosystem: 'rubygems',
@@ -52,7 +52,7 @@ let rubyChange: Change = {
   ]
 }
 
-let noVulnNpmChange: Change = {
+const noVulnNpmChange: Change = {
   manifest: 'package.json',
   change_type: 'added',
   ecosystem: 'npm',
@@ -92,7 +92,7 @@ test('it properly filters changes by scope', async () => {
 
 test('it properly handles undefined advisory IDs', async () => {
   const changes = [npmChange, rubyChange, noVulnNpmChange]
-  let result = filterAllowedAdvisories(undefined, changes)
+  const result = filterAllowedAdvisories(undefined, changes)
   expect(result).toEqual([npmChange, rubyChange, noVulnNpmChange])
 })
 

__tests__/fixtures/create-test-change.ts

@@ -0,0 +1,36 @@
+import {Change} from '../../src/schemas'
+import {createTestVulnerability} from './create-test-vulnerability'
+
+const defaultChange: Change = {
+  change_type: 'added',
+  manifest: 'package.json',
+  ecosystem: 'npm',
+  name: 'lodash',
+  version: '4.17.20',
+  package_url: 'pkg:npm/lodash@4.17.20',
+  license: 'MIT',
+  source_repository_url: 'https://github.com/lodash/lodash',
+  scope: 'runtime',
+  vulnerabilities: [
+    createTestVulnerability({
+      severity: 'high',
+      advisory_ghsa_id: 'GHSA-35jh-r3h4-6jhm',
+      advisory_summary: 'Command Injection in lodash',
+      advisory_url: 'https://github.com/advisories/GHSA-35jh-r3h4-6jhm'
+    }),
+    createTestVulnerability({
+      severity: 'moderate',
+      advisory_ghsa_id: 'GHSA-29mw-wpgm-hmr9',
+      advisory_summary:
+        'Regular Expression Denial of Service (ReDoS) in lodash',
+      advisory_url: 'https://github.com/advisories/GHSA-29mw-wpgm-hmr9'
+    })
+  ]
+}
+
+const createTestChange = (overwrites: Partial<Change> = {}): Change => ({
+  ...defaultChange,
+  ...overwrites
+})
+
+export {createTestChange}

__tests__/fixtures/create-test-vulnerability.ts

@@ -0,0 +1,19 @@
+import {Change} from '../../src/schemas'
+
+type Vulnerability = Change['vulnerabilities'][0]
+
+const defaultTestVulnerability: Vulnerability = {
+  severity: 'high',
+  advisory_ghsa_id: 'GHSA-35jh-r3h4-6jhm',
+  advisory_summary: 'Command Injection in lodash',
+  advisory_url: 'https://github.com/advisories/GHSA-35jh-r3h4-6jhm'
+}
+
+const createTestVulnerability = (
+  overwrites: Partial<Vulnerability> = {}
+): Vulnerability => ({
+  ...defaultTestVulnerability,
+  ...overwrites
+})
+
+export {createTestVulnerability}

__tests__/licenses.test.ts

@@ -3,7 +3,7 @@ import {Change, Changes} from '../src/schemas'
 
 let getInvalidLicenseChanges: Function
 
-let npmChange: Change = {
+const npmChange: Change = {
   manifest: 'package.json',
   change_type: 'added',
   ecosystem: 'npm',
@@ -23,7 +23,7 @@ let npmChange: Change = {
   ]
 }
 
-let rubyChange: Change = {
+const rubyChange: Change = {
   change_type: 'added',
   manifest: 'Gemfile.lock',
   ecosystem: 'rubygems',
@@ -63,6 +63,7 @@ const mockOctokit = {
 
 jest.mock('octokit', () => {
   return {
+    // eslint-disable-next-line @typescript-eslint/no-extraneous-class
     Octokit: class {
       constructor() {
         return mockOctokit
@@ -78,6 +79,7 @@ beforeEach(async () => {
     // true for BSD, false for all others
     return jest.fn((license: string, _: string): boolean => license === 'BSD')
   })
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
   ;({getInvalidLicenseChanges} = require('../src/licenses'))
 })
 
@@ -140,6 +142,7 @@ test('it adds all licenses to unresolved if it is unable to determine the validi
       throw new Error('Some Error')
     })
   })
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
   ;({getInvalidLicenseChanges} = require('../src/licenses'))
   const changes: Changes = [npmChange, rubyChange]
   const invalidLicenses = await getInvalidLicenseChanges(changes, {

__tests__/summary.test.ts

@@ -0,0 +1,305 @@
+import {expect, jest, test} from '@jest/globals'
+import {Changes, ConfigurationOptions} from '../src/schemas'
+import * as summary from '../src/summary'
+import * as core from '@actions/core'
+import {createTestChange} from './fixtures/create-test-change'
+import {createTestVulnerability} from './fixtures/create-test-vulnerability'
+
+afterEach(() => {
+  jest.clearAllMocks()
+  core.summary.emptyBuffer()
+})
+
+const emptyChanges: Changes = []
+const emptyInvalidLicenseChanges = {
+  forbidden: [],
+  unresolved: [],
+  unlicensed: []
+}
+const defaultConfig: ConfigurationOptions = {
+  vulnerability_check: true,
+  license_check: true,
+  fail_on_severity: 'high',
+  fail_on_scopes: ['runtime'],
+  allow_ghsas: [],
+  allow_licenses: [],
+  deny_licenses: [],
+  comment_summary_in_pr: true
+}
+
+test('prints headline as h1', () => {
+  summary.addSummaryToSummary(
+    emptyChanges,
+    emptyInvalidLicenseChanges,
+    defaultConfig
+  )
+  const text = core.summary.stringify()
+
+  expect(text).toContain('<h1>Dependency Review</h1>')
+})
+
+test('only includes "No vulnerabilities or license issues found"-message if both are configured and nothing was found', () => {
+  summary.addSummaryToSummary(
+    emptyChanges,
+    emptyInvalidLicenseChanges,
+    defaultConfig
+  )
+  const text = core.summary.stringify()
+
+  expect(text).toContain('✅ No vulnerabilities or license issues found.')
+})
+
+test('only includes "No vulnerabilities found"-message if "license_check" is set to false and nothing was found', () => {
+  const config = {...defaultConfig, license_check: false}
+  summary.addSummaryToSummary(emptyChanges, emptyInvalidLicenseChanges, config)
+  const text = core.summary.stringify()
+
+  expect(text).toContain('✅ No vulnerabilities found.')
+})
+
+test('only includes "No license issues found"-message if "vulnerability_check" is set to false and nothing was found', () => {
+  const config = {...defaultConfig, vulnerability_check: false}
+  summary.addSummaryToSummary(emptyChanges, emptyInvalidLicenseChanges, config)
+  const text = core.summary.stringify()
+
+  expect(text).toContain('✅ No license issues found.')
+})
+
+test('does not include status section if nothing was found', () => {
+  summary.addSummaryToSummary(
+    emptyChanges,
+    emptyInvalidLicenseChanges,
+    defaultConfig
+  )
+  const text = core.summary.stringify()
+
+  expect(text).not.toContain('The following issues were found:')
+})
+
+test('includes count and status icons for all findings', () => {
+  const vulnerabilities = [
+    createTestChange({name: 'lodash'}),
+    createTestChange({name: 'underscore', package_url: 'test-url'})
+  ]
+  const licenseIssues = {
+    forbidden: [createTestChange()],
+    unresolved: [createTestChange(), createTestChange()],
+    unlicensed: [createTestChange(), createTestChange(), createTestChange()]
+  }
+
+  summary.addSummaryToSummary(vulnerabilities, licenseIssues, defaultConfig)
+
+  const text = core.summary.stringify()
+  expect(text).toContain('❌ 2 vulnerable package(s)')
+  expect(text).toContain(
+    '❌ 2 package(s) with invalid SPDX license definitions'
+  )
+  expect(text).toContain('❌ 1 package(s) with incompatible licenses')
+  expect(text).toContain('⚠️ 3 package(s) with unknown licenses')
+})
+
+test('uses checkmarks for license issues if only vulnerabilities were found', () => {
+  const vulnerabilities = [createTestChange()]
+
+  summary.addSummaryToSummary(
+    vulnerabilities,
+    emptyInvalidLicenseChanges,
+    defaultConfig
+  )
+
+  const text = core.summary.stringify()
+  expect(text).toContain('❌ 1 vulnerable package(s)')
+  expect(text).toContain(
+    '✅ 0 package(s) with invalid SPDX license definitions'
+  )
+  expect(text).toContain('✅ 0 package(s) with incompatible licenses')
+  expect(text).toContain('✅ 0 package(s) with unknown licenses')
+})
+
+test('uses checkmarks for vulnerabilities if only license issues were found', () => {
+  const licenseIssues = {
+    forbidden: [createTestChange()],
+    unresolved: [],
+    unlicensed: []
+  }
+
+  summary.addSummaryToSummary(emptyChanges, licenseIssues, defaultConfig)
+
+  const text = core.summary.stringify()
+  expect(text).toContain('✅ 0 vulnerable package(s)')
+  expect(text).toContain(
+    '✅ 0 package(s) with invalid SPDX license definitions'
+  )
+  expect(text).toContain('❌ 1 package(s) with incompatible licenses')
+  expect(text).toContain('✅ 0 package(s) with unknown licenses')
+})
+
+test('addChangeVulnerabilitiesToSummary() - only includes section if any vulnerabilites found', () => {
+  summary.addChangeVulnerabilitiesToSummary(emptyChanges, 'low')
+  const text = core.summary.stringify()
+  expect(text).toEqual('')
+})
+
+test('addChangeVulnerabilitiesToSummary() - includes all vulnerabilities', () => {
+  const changes = [
+    createTestChange({name: 'lodash'}),
+    createTestChange({name: 'underscore', package_url: 'test-url'})
+  ]
+
+  summary.addChangeVulnerabilitiesToSummary(changes, 'low')
+
+  const text = core.summary.stringify()
+  expect(text).toContain('<h2>Vulnerabilities</h2>')
+  expect(text).toContain('lodash')
+  expect(text).toContain('underscore')
+})
+
+test('addChangeVulnerabilitiesToSummary() - includes advisory url if available', () => {
+  const changes = [
+    createTestChange({
+      name: 'underscore',
+      vulnerabilities: [
+        createTestVulnerability({
+          advisory_summary: 'test-summary',
+          advisory_url: 'test-url'
+        })
+      ]
+    })
+  ]
+
+  summary.addChangeVulnerabilitiesToSummary(changes, 'low')
+
+  const text = core.summary.stringify()
+  expect(text).toContain('lodash')
+  expect(text).toContain('<a href="test-url">test-summary</a>')
+})
+
+test('addChangeVulnerabilitiesToSummary() - groups vulnerabilities of a single package', () => {
+  const changes = [
+    createTestChange({
+      name: 'package-with-multiple-vulnerabilities',
+      vulnerabilities: [
+        createTestVulnerability({advisory_summary: 'test-summary-1'}),
+        createTestVulnerability({advisory_summary: 'test-summary-2'})
+      ]
+    })
+  ]
+
+  summary.addChangeVulnerabilitiesToSummary(changes, 'low')
+
+  const text = core.summary.stringify()
+  expect(text.match('package-with-multiple-vulnerabilities')).toHaveLength(1)
+  expect(text).toContain('test-summary-1')
+  expect(text).toContain('test-summary-2')
+})
+
+test('addChangeVulnerabilitiesToSummary() - prints severity statement if above low', () => {
+  const changes = [createTestChange()]
+
+  summary.addChangeVulnerabilitiesToSummary(changes, 'medium')
+
+  const text = core.summary.stringify()
+  expect(text).toContain(
+    'Only included vulnerabilities with severity <strong>medium</strong> or higher.'
+  )
+})
+
+test('addChangeVulnerabilitiesToSummary() - does not print severity statment if it is set to "low"', () => {
+  const changes = [createTestChange()]
+
+  summary.addChangeVulnerabilitiesToSummary(changes, 'low')
+
+  const text = core.summary.stringify()
+  expect(text).not.toContain('Only included vulnerabilities')
+})
+
+test('addLicensesToSummary() - does not include entire section if no license issues found', () => {
+  summary.addLicensesToSummary(emptyInvalidLicenseChanges, defaultConfig)
+  const text = core.summary.stringify()
+  expect(text).toEqual('')
+})
+
+test('addLicensesToSummary() - includes all license issues in table', () => {
+  const licenseIssues = {
+    forbidden: [createTestChange()],
+    unresolved: [createTestChange(), createTestChange()],
+    unlicensed: [createTestChange(), createTestChange(), createTestChange()]
+  }
+
+  summary.addLicensesToSummary(licenseIssues, defaultConfig)
+
+  const text = core.summary.stringify()
+  expect(text).toContain('<h2>License Issues</h2>')
+  expect(text).toContain('<td>Incompatible License</td>')
+  expect(text).toContain('<td>Invalid SPDX License</td>')
+  expect(text).toContain('<td>Unknown License</td>')
+})
+
+test('addLicenseToSummary() - adds one table per manifest', () => {
+  const licenseIssues = {
+    forbidden: [
+      createTestChange({manifest: 'package.json'}),
+      createTestChange({manifest: '.github/workflows/test.yml'})
+    ],
+    unresolved: [],
+    unlicensed: []
+  }
+
+  summary.addLicensesToSummary(licenseIssues, defaultConfig)
+
+  const text = core.summary.stringify()
+
+  expect(text).toContain('<h4><em>package.json</em></h4>')
+  expect(text).toContain('<h4><em>.github/workflows/test.yml</em></h4>')
+})
+
+test('addLicensesToSummary() - does not include specific license type sub-section if nothing is found', () => {
+  const licenseIssues = {
+    forbidden: [],
+    unlicensed: [],
+    unresolved: [createTestChange()]
+  }
+
+  summary.addLicensesToSummary(licenseIssues, defaultConfig)
+
+  const text = core.summary.stringify()
+  expect(text).not.toContain('<td>Incompatible License</td>')
+  expect(text).not.toContain('<td>Unknown License</td>')
+  expect(text).toContain('<td>Invalid SPDX License</td>')
+})
+
+test('addLicensesToSummary() - includes list of configured allowed licenses', () => {
+  const licenseIssues = {
+    forbidden: [createTestChange()],
+    unresolved: [],
+    unlicensed: []
+  }
+
+  const config: ConfigurationOptions = {
+    ...defaultConfig,
+    allow_licenses: ['MIT', 'Apache-2.0']
+  }
+
+  summary.addLicensesToSummary(licenseIssues, config)
+
+  const text = core.summary.stringify()
+  expect(text).toContain('<strong>Allowed Licenses</strong>: MIT, Apache-2.0')
+})
+
+test('addLicensesToSummary() - includes configured denied license', () => {
+  const licenseIssues = {
+    forbidden: [createTestChange()],
+    unresolved: [],
+    unlicensed: []
+  }
+
+  const config: ConfigurationOptions = {
+    ...defaultConfig,
+    deny_licenses: ['MIT']
+  }
+
+  summary.addLicensesToSummary(licenseIssues, config)
+
+  const text = core.summary.stringify()
+  expect(text).toContain('<strong>Denied Licenses</strong>: MIT')
+})

action.yml

@@ -41,6 +41,9 @@ inputs:
   vulnerability-check:
     description: A boolean to determine if vulnerability checks should be performed
     required: false
+  comment-summary-in-pr:
+    description: A boolean to determine if the report should be posted as a comment in the PR itself. Setting this to true requires you to give the workflow the write permissions for pull-requests
+    required: false
 runs:
   using: 'node16'
   main: 'dist/index.js'

package.json

@@ -1,11 +1,11 @@
 {
   "name": "dependency-review-action",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "private": true,
   "description": "A GitHub Action for Dependency Review",
   "main": "lib/main.js",
   "scripts": {
-    "build": "tsc",
+    "build": "tsc -p tsconfig.build.json",
     "format": "prettier --write '**/*.ts'",
     "format-check": "prettier --check '**/*.ts'",
     "lint": "eslint src/**/*.ts",
@@ -27,36 +27,36 @@
   "dependencies": {
     "@actions/core": "^1.10.0",
     "@actions/github": "^5.1.1",
-    "@octokit/plugin-retry": "^4.0.3",
+    "@octokit/plugin-retry": "^4.1.1",
     "@octokit/request-error": "^2.1.0",
     "ansi-styles": "^6.2.1",
-    "got": "^12.5.3",
-    "nodemon": "^2.0.20",
-    "octokit": "^2.0.11",
+    "got": "^12.6.0",
+    "nodemon": "^2.0.21",
+    "octokit": "^2.0.14",
     "spdx-expression-parse": "^3.0.1",
     "spdx-satisfies": "^5.0.1",
     "yaml": "^2.2.1",
-    "zod": "^3.20.2"
+    "zod": "^3.21.0"
   },
   "devDependencies": {
     "@types/jest": "^27.5.2",
-    "@types/node": "^16.18.11",
-    "@typescript-eslint/eslint-plugin": "^5.45.0",
+    "@types/node": "^16.18.14",
+    "@typescript-eslint/eslint-plugin": "^5.48.1",
     "@typescript-eslint/parser": "^5.48.0",
     "@types/spdx-expression-parse": "^3.0.2",
     "@types/spdx-satisfies": "^0.1.0",
-    "@typescript-eslint/eslint-plugin": "^5.45.0",
-    "@typescript-eslint/parser": "^5.47.1",
-    "@vercel/ncc": "^0.36.0",
+    "@typescript-eslint/eslint-plugin": "^5.54.0",
+    "@typescript-eslint/parser": "^5.53.0",
+    "@vercel/ncc": "^0.36.1",
     "esbuild-register": "^3.4.2",
-    "eslint": "^8.31.0",
-    "eslint-plugin-github": "^4.6.0",
+    "eslint": "^8.35.0",
+    "eslint-plugin-github": "^4.6.1",
     "eslint-plugin-jest": "^27.2.1",
     "jest": "^27.5.1",
     "js-yaml": "^4.1.0",
-    "nodemon": "^2.0.20",
-    "prettier": "2.8.2",
+    "nodemon": "^2.0.21",
+    "prettier": "2.8.4",
     "ts-jest": "^27.1.4",
-    "typescript": "^4.9.4"
+    "typescript": "^4.9.5"
   }
 }

scripts/create_summary.ts

@@ -0,0 +1,114 @@
+/**
+ * This scripts creates example markdown files for the summary in the ./tmp folder.
+ * You can use it to preview changes to the summary.
+ *
+ * You can execute it like this:
+ * npx ts-node scripts/create_summary.ts
+ */
+
+import {Changes, ConfigurationOptions} from '../src/schemas'
+import {createTestChange} from '../__tests__/fixtures/create-test-change'
+import {InvalidLicenseChanges} from '../src/licenses'
+import * as fs from 'fs'
+import * as core from '@actions/core'
+import * as summary from '../src/summary'
+import * as path from 'path'
+
+const defaultConfig: ConfigurationOptions = {
+  vulnerability_check: true,
+  license_check: true,
+  fail_on_severity: 'high',
+  fail_on_scopes: ['runtime'],
+  allow_ghsas: [],
+  allow_licenses: ['MIT'],
+  deny_licenses: [],
+  comment_summary_in_pr: true
+}
+
+const tmpDir = path.resolve(__dirname, '../tmp')
+
+const createExampleSummaries = async (): Promise<void> => {
+  await fs.promises.mkdir(tmpDir, {recursive: true})
+
+  await createNonIssueSummary()
+  await createFullSummary()
+}
+
+const createNonIssueSummary = async (): Promise<void> => {
+  await createSummary(
+    [],
+    {forbidden: [], unresolved: [], unlicensed: []},
+    defaultConfig,
+    'non-issue-summary.md'
+  )
+}
+
+const createFullSummary = async (): Promise<void> => {
+  const changes = [createTestChange()]
+  const licenses: InvalidLicenseChanges = {
+    forbidden: [
+      createTestChange({
+        name: 'underscore',
+        version: '1.12.0',
+        license: 'Apache 2.0'
+      })
+    ],
+    unresolved: [
+      createTestChange({
+        name: 'octoinvader',
+        license: 'Non SPDX License'
+      }),
+      createTestChange({
+        name: 'owner/action-1',
+        license: 'XYZ-License',
+        version: 'v1.2.2',
+        manifest: '.github/workflows/action.yml'
+      })
+    ],
+    unlicensed: [
+      createTestChange({
+        name: 'my-other-dependency',
+        license: null
+      }),
+      createTestChange({
+        name: 'owner/action-2',
+        version: 'main',
+        license: null,
+        manifest: '.github/workflows/action.yml'
+      })
+    ]
+  }
+
+  await createSummary(changes, licenses, defaultConfig, 'full-summary.md')
+}
+
+async function createSummary(
+  vulnerabilities: Changes,
+  licenseIssues: InvalidLicenseChanges,
+  config: ConfigurationOptions,
+  fileName: string
+): Promise<void> {
+  summary.addSummaryToSummary(vulnerabilities, licenseIssues, config)
+  summary.addChangeVulnerabilitiesToSummary(
+    vulnerabilities,
+    config.fail_on_severity
+  )
+  summary.addLicensesToSummary(licenseIssues, defaultConfig)
+
+  const allChanges = [
+    ...vulnerabilities,
+    ...licenseIssues.forbidden,
+    ...licenseIssues.unresolved,
+    ...licenseIssues.unlicensed
+  ]
+
+  summary.addScannedDependencies(allChanges)
+
+  const text = core.summary.stringify()
+  await fs.promises.writeFile(path.resolve(tmpDir, fileName), text, {
+    flag: 'w'
+  })
+  core.summary.emptyBuffer()
+}
+
+createExampleSummaries()

src/comment-pr.ts

@@ -0,0 +1,84 @@
+import * as github from '@actions/github'
+import * as core from '@actions/core'
+import * as githubUtils from '@actions/github/lib/utils'
+import * as retry from '@octokit/plugin-retry'
+import {RequestError} from '@octokit/request-error'
+
+const retryingOctokit = githubUtils.GitHub.plugin(retry.retry)
+const octo = new retryingOctokit(
+  githubUtils.getOctokitOptions(core.getInput('repo-token', {required: true}))
+)
+
+// Comment Marker to identify an existing comment to update, so we don't spam the PR with comments
+const COMMENT_MARKER = '<!-- dependency-review-pr-comment-marker -->'
+
+export async function commentPr(summary: typeof core.summary): Promise<void> {
+  if (!github.context.payload.pull_request) {
+    core.warning(
+      'Not in the context of a pull request. Skipping comment creation.'
+    )
+    return
+  }
+
+  const commentBody = `${summary.stringify()}\n\n${COMMENT_MARKER}`
+
+  try {
+    const existingCommentId = await findCommentByMarker(COMMENT_MARKER)
+
+    if (existingCommentId) {
+      await octo.rest.issues.updateComment({
+        owner: github.context.repo.owner,
+        repo: github.context.repo.repo,
+        comment_id: existingCommentId,
+        body: commentBody
+      })
+    } else {
+      await octo.rest.issues.createComment({
+        owner: github.context.repo.owner,
+        repo: github.context.repo.repo,
+        issue_number: github.context.payload.pull_request.number,
+        body: commentBody
+      })
+    }
+  } catch (error) {
+    if (error instanceof RequestError && error.status === 403) {
+      core.warning(
+        `Unable to write summary to pull-request. Make sure you are giving this workflow the permission 'pull-requests: write'.`
+      )
+    } else {
+      if (error instanceof Error) {
+        core.warning(
+          `Unable to comment summary to pull-request, received error: ${error.message}`
+        )
+      } else {
+        core.warning(
+          'Unable to comment summary to pull-request: Unexpected fatal error'
+        )
+      }
+    }
+  }
+}
+
+async function findCommentByMarker(
+  commentBodyIncludes: string
+): Promise<number | undefined> {
+  const commentsIterator = octo.paginate.iterator(
+    octo.rest.issues.listComments,
+    {
+      owner: github.context.repo.owner,
+      repo: github.context.repo.repo,
+      // We are already checking if we are in the context of a pull request in the caller
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      issue_number: github.context.payload.pull_request!.number
+    }
+  )
+
+  for await (const {data: comments} of commentsIterator) {
+    const existingComment = comments.find(comment =>
+      comment.body?.includes(commentBodyIncludes)
+    )
+    if (existingComment) return existingComment.id
+  }
+
+  return undefined
+}

src/config.ts

@@ -34,6 +34,7 @@ function readInlineConfig(): ConfigurationOptionsPartial {
   const vulnerability_check = getOptionalBoolean('vulnerability-check')
   const base_ref = getOptionalInput('base-ref')
   const head_ref = getOptionalInput('head-ref')
+  const comment_summary_in_pr = getOptionalBoolean('comment-summary-in-pr')
 
   validateLicenses('allow-licenses', allow_licenses)
   validateLicenses('deny-licenses', deny_licenses)
@@ -47,7 +48,8 @@ function readInlineConfig(): ConfigurationOptionsPartial {
     license_check,
     vulnerability_check,
     base_ref,
-    head_ref
+    head_ref,
+    comment_summary_in_pr
   }
 
   return Object.fromEntries(

src/licenses.ts

@@ -14,19 +14,24 @@ import {isSPDXValid, octokitClient} from './utils'
  * @param { { allow?: string[], deny?: string[]}} licenses An object with `allow`/`deny` keys, each containing a list of licenses.
  * @returns {Promise<{Object.<string, Array.<Change>>}} A promise to a Record Object. The keys are strings, unlicensed, unresolved and forbidden. The values are a list of changes
  */
+export type InvalidLicenseChangeTypes =
+  | 'unlicensed'
+  | 'unresolved'
+  | 'forbidden'
+export type InvalidLicenseChanges = Record<InvalidLicenseChangeTypes, Changes>
 export async function getInvalidLicenseChanges(
   changes: Change[],
   licenses: {
     allow?: string[]
     deny?: string[]
   }
-): Promise<Record<string, Changes>> {
+): Promise<InvalidLicenseChanges> {
   const {allow, deny} = licenses
 
   const groupedChanges = await groupChanges(changes)
   const licensedChanges: Changes = groupedChanges.licensed
 
-  const invalidLicenseChanges: Record<string, Changes> = {
+  const invalidLicenseChanges: InvalidLicenseChanges = {
     unlicensed: groupedChanges.unlicensed,
     unresolved: [],
     forbidden: []

src/main.ts

@@ -15,6 +15,7 @@ import * as summary from './summary'
 import {getRefs} from './git-refs'
 
 import {groupDependenciesByManifest} from './utils'
+import {commentPr} from './comment-pr'
 
 async function run(): Promise<void> {
   try {
@@ -28,6 +29,11 @@ async function run(): Promise<void> {
       headRef: refs.head
     })
 
+    if (!changes) {
+      core.info('No Dependency Changes found. Skipping Dependency Review.')
+      return
+    }
+
     const minSeverity = config.fail_on_severity
     const scopedChanges = filterChangesByScopes(config.fail_on_scopes, changes)
     const filteredChanges = filterAllowedAdvisories(
@@ -35,7 +41,7 @@ async function run(): Promise<void> {
       scopedChanges
     )
 
-    const addedChanges = filterChangesBySeverity(
+    const vulnerableChanges = filterChangesBySeverity(
       minSeverity,
       filteredChanges
     ).filter(
@@ -54,13 +60,14 @@ async function run(): Promise<void> {
     )
 
     summary.addSummaryToSummary(
-      config.vulnerability_check ? addedChanges : null,
-      config.license_check ? invalidLicenseChanges : null
+      vulnerableChanges,
+      invalidLicenseChanges,
+      config
     )
 
     if (config.vulnerability_check) {
-      summary.addChangeVulnerabilitiesToSummary(addedChanges, minSeverity)
-      printVulnerabilitiesBlock(addedChanges, minSeverity)
+      summary.addChangeVulnerabilitiesToSummary(vulnerableChanges, minSeverity)
+      printVulnerabilitiesBlock(vulnerableChanges, minSeverity)
     }
     if (config.license_check) {
       summary.addLicensesToSummary(invalidLicenseChanges, config)
@@ -69,6 +76,9 @@ async function run(): Promise<void> {
 
     summary.addScannedDependencies(changes)
     printScannedDependencies(changes)
+    if (config.comment_summary_in_pr) {
+      await commentPr(core.summary)
+    }
   } catch (error) {
     if (error instanceof RequestError && error.status === 404) {
       core.setFailed(

src/schemas.ts

@@ -45,7 +45,8 @@ export const ConfigurationOptionsSchema = z
     vulnerability_check: z.boolean().default(true),
     config_file: z.string().optional(),
     base_ref: z.string().optional(),
-    head_ref: z.string().optional()
+    head_ref: z.string().optional(),
+    comment_summary_in_pr: z.boolean().default(false)
   })
   .superRefine((config, context) => {
     if (config.allow_licenses && config.deny_licenses) {

src/summary.ts

@@ -1,50 +1,82 @@
 import * as core from '@actions/core'
 import {ConfigurationOptions, Changes} from './schemas'
 import {SummaryTableRow} from '@actions/core/lib/summary'
+import {InvalidLicenseChanges, InvalidLicenseChangeTypes} from './licenses'
 import {groupDependenciesByManifest, getManifestsSet, renderUrl} from './utils'
 
-export function addSummaryToSummary(
-  addedPackages: Changes | null,
-  invalidLicenseChanges: Record<string, Changes> | null
-): void {
-  core.summary
-    .addHeading('Dependency Review')
-    .addRaw('We found:')
-    .addList([
-      ...(addedPackages
-        ? [`${addedPackages.length} vulnerable package(s)`]
-        : []),
-      ...(invalidLicenseChanges
-        ? [
-            `${invalidLicenseChanges.unresolved.length} package(s) with invalid SPDX license definitions`,
-            `${invalidLicenseChanges.forbidden.length} package(s) with incompatible licenses`,
-            `${invalidLicenseChanges.unlicensed.length} package(s) with unknown licenses.`
-          ]
-        : [])
-    ])
+const icons = {
+  check: '✅',
+  cross: '❌',
+  warning: '⚠️'
 }
 
-export function addChangeVulnerabilitiesToSummary(
-  addedPackages: Changes,
-  severity: string
+export function addSummaryToSummary(
+  vulnerableChanges: Changes,
+  invalidLicenseChanges: InvalidLicenseChanges,
+  config: ConfigurationOptions
 ): void {
-  const rows: SummaryTableRow[] = []
+  core.summary.addHeading('Dependency Review', 1)
 
-  const manifests = getManifestsSet(addedPackages)
+  if (
+    vulnerableChanges.length === 0 &&
+    countLicenseIssues(invalidLicenseChanges) === 0
+  ) {
+    if (!config.license_check) {
+      core.summary.addRaw(`${icons.check} No vulnerabilities found.`)
+    } else if (!config.vulnerability_check) {
+      core.summary.addRaw(`${icons.check} No license issues found.`)
+    } else {
+      core.summary.addRaw(
+        `${icons.check} No vulnerabilities or license issues found.`
+      )
+    }
 
-  core.summary
-    .addHeading('Vulnerabilities')
-    .addQuote(
-      `Vulnerabilities were filtered by minimum severity <strong>${severity}</strong>.`
-    )
-
-  if (addedPackages.length === 0) {
-    core.summary.addQuote('No vulnerabilities found in added packages.')
     return
   }
 
+  core.summary
+    .addRaw('The following issues were found:')
+    .addList([
+      ...(config.vulnerability_check
+        ? [
+            `${checkOrFailIcon(vulnerableChanges.length)} ${
+              vulnerableChanges.length
+            } vulnerable package(s)`
+          ]
+        : []),
+      ...(config.license_check
+        ? [
+            `${checkOrFailIcon(invalidLicenseChanges.forbidden.length)} ${
+              invalidLicenseChanges.forbidden.length
+            } package(s) with incompatible licenses`,
+            `${checkOrFailIcon(invalidLicenseChanges.unresolved.length)} ${
+              invalidLicenseChanges.unresolved.length
+            } package(s) with invalid SPDX license definitions`,
+            `${checkOrWarnIcon(invalidLicenseChanges.unlicensed.length)} ${
+              invalidLicenseChanges.unlicensed.length
+            } package(s) with unknown licenses.`
+          ]
+        : [])
+    ])
+    .addRaw('See the Details below.')
+}
+
+export function addChangeVulnerabilitiesToSummary(
+  vulnerableChanges: Changes,
+  severity: string
+): void {
+  if (vulnerableChanges.length === 0) {
+    return
+  }
+
+  const rows: SummaryTableRow[] = []
+
+  const manifests = getManifestsSet(vulnerableChanges)
+
+  core.summary.addHeading('Vulnerabilities', 2)
+
   for (const manifest of manifests) {
-    for (const change of addedPackages.filter(
+    for (const change of vulnerableChanges.filter(
       pkg => pkg.manifest === manifest
     )) {
       let previous_package = ''
@@ -72,7 +104,7 @@ export function addChangeVulnerabilitiesToSummary(
         previous_version = change.version
       }
     }
-    core.summary.addHeading(`<em>${manifest}</em>`, 3).addTable([
+    core.summary.addHeading(`<em>${manifest}</em>`, 4).addTable([
       [
         {data: 'Name', header: true},
         {data: 'Version', header: true},
@@ -82,13 +114,24 @@ export function addChangeVulnerabilitiesToSummary(
       ...rows
     ])
   }
+
+  if (severity !== 'low') {
+    core.summary.addQuote(
+      `Only included vulnerabilities with severity <strong>${severity}</strong> or higher.`
+    )
+  }
 }
 
 export function addLicensesToSummary(
-  invalidLicenseChanges: Record<string, Changes>,
+  invalidLicenseChanges: InvalidLicenseChanges,
   config: ConfigurationOptions
 ): void {
-  core.summary.addHeading('Licenses')
+  if (countLicenseIssues(invalidLicenseChanges) === 0) {
+    return
+  }
+
+  core.summary.addHeading('License Issues', 2)
+  printLicenseViolations(invalidLicenseChanges)
 
   if (config.allow_licenses && config.allow_licenses.length > 0) {
     core.summary.addQuote(
@@ -101,11 +144,6 @@ export function addLicensesToSummary(
     )
   }
 
-  if (Object.values(invalidLicenseChanges).every(item => item.length === 0)) {
-    core.summary.addQuote('No license violations detected.')
-    return
-  }
-
   core.debug(
     `found ${invalidLicenseChanges.unlicensed.length} unknown licenses`
   )
@@ -113,39 +151,43 @@ export function addLicensesToSummary(
   core.debug(
     `${invalidLicenseChanges.unresolved.length} licenses could not be validated`
   )
-
-  printLicenseViolation(
-    'Incompatible Licenses',
-    invalidLicenseChanges.forbidden
-  )
-  printLicenseViolation('Unknown Licenses', invalidLicenseChanges.unlicensed)
-  printLicenseViolation(
-    'Invalid SPDX License Definitions',
-    invalidLicenseChanges.unresolved
-  )
 }
-function printLicenseViolation(heading: string, changes: Changes): void {
-  core.summary.addHeading(heading, 5).addSeparator()
 
-  if (changes.length > 0) {
-    const rows: SummaryTableRow[] = []
-    const manifests = getManifestsSet(changes)
+const licenseIssueTypes: InvalidLicenseChangeTypes[] = [
+  'forbidden',
+  'unresolved',
+  'unlicensed'
+]
 
-    for (const manifest of manifests) {
-      core.summary.addHeading(`<em>${manifest}</em>`, 4)
+const issueTypeNames: Record<InvalidLicenseChangeTypes, string> = {
+  forbidden: 'Incompatible License',
+  unresolved: 'Invalid SPDX License',
+  unlicensed: 'Unknown License'
+}
 
-      for (const change of changes.filter(pkg => pkg.manifest === manifest)) {
-        rows.push([
-          renderUrl(change.source_repository_url, change.name),
-          change.version,
-          formatLicense(change.license)
-        ])
+function printLicenseViolations(changes: InvalidLicenseChanges): void {
+  const rowsGroupedByManifest: Record<string, SummaryTableRow[]> = {}
+
+  for (const issueType of licenseIssueTypes) {
+    for (const change of changes[issueType]) {
+      if (!rowsGroupedByManifest[change.manifest]) {
+        rowsGroupedByManifest[change.manifest] = []
       }
-
-      core.summary.addTable([['Package', 'Version', 'License'], ...rows])
+      rowsGroupedByManifest[change.manifest].push([
+        renderUrl(change.source_repository_url, change.name),
+        change.version,
+        formatLicense(change.license),
+        issueTypeNames[issueType]
+      ])
     }
-  } else {
-    core.summary.addQuote(`No ${heading.toLowerCase()} detected.`)
+  }
+
+  for (const [manifest, rows] of Object.entries(rowsGroupedByManifest)) {
+    core.summary.addHeading(`<em>${manifest}</em>`, 4)
+    core.summary.addTable([
+      ['Package', 'Version', 'License', 'Issue Type'],
+      ...rows
+    ])
   }
 }
 
@@ -160,9 +202,7 @@ export function addScannedDependencies(changes: Changes): void {
   const dependencies = groupDependenciesByManifest(changes)
   const manifests = dependencies.keys()
 
-  const summary = core.summary
-    .addHeading('Scanned Dependencies')
-    .addHeading(`We scanned ${dependencies.size} manifest files:`, 5)
+  const summary = core.summary.addHeading('Scanned Manifest Files', 2)
 
   for (const manifest of manifests) {
     const deps = dependencies.get(manifest)
@@ -174,3 +214,20 @@ export function addScannedDependencies(changes: Changes): void {
     }
   }
 }
+
+function countLicenseIssues(
+  invalidLicenseChanges: InvalidLicenseChanges
+): number {
+  return Object.values(invalidLicenseChanges).reduce(
+    (acc, val) => acc + val.length,
+    0
+  )
+}
+
+function checkOrFailIcon(count: number): string {
+  return count === 0 ? icons.check : icons.cross
+}
+
+function checkOrWarnIcon(count: number): string {
+  return count === 0 ? icons.check : icons.warning
+}

tsconfig.build.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src"],
+  "compilerOptions": {
+    "outDir": "./lib" /* Redirect output structure to the directory. */,
+    "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+  }
+}

tsconfig.json

@@ -3,10 +3,9 @@
     "target": "es6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "outDir": "./lib" /* Redirect output structure to the directory. */,
-    "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     "strict": true /* Enable all strict type-checking options. */,
     "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
     "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
   },
-  "exclude": ["node_modules", "**/*.test.ts"]
+  "exclude": ["node_modules"]
 }