Updating README.md

Bump @typescript-eslint/eslint-plugin from 5.56.0 to 5.57.0

.gitignore

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

README.md

@@ -1,7 +1,7 @@
 # dependency-review-action
 
 This action scans your pull requests for dependency changes, and will
-raise an error if any vulnerabilities or invalid licenses are being introduced. The action is supported by an [API endpoint](https://docs.github.com/en/rest/reference/dependency-graph#dependency-review) that diffs the dependencies between any two revisions.
+raise an error if any vulnerabilities or invalid licenses are being introduced. The action is supported by an [API endpoint](https://docs.github.com/en/rest/reference/dependency-graph#dependency-review) that diffs the dependencies between any two revisions on your default branch.
 
 The action is available for all public repositories, as well as private repositories that have GitHub Advanced Security licensed.
 
@@ -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
 
@@ -128,11 +128,12 @@ 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. Please note
+that the **option names in external files use underscores instead of dashes**:
 
 ```yaml
-fail-on-severity: 'critical'
-allow-licenses:
+fail_on_severity: 'critical'
+allow_licenses:
   - 'GPL-3.0'
   - 'BSD-3-Clause'
   - 'MIT'

__tests__/config.test.ts

@@ -2,33 +2,7 @@ import {expect, test, beforeEach} from '@jest/globals'
 import {readConfig} from '../src/config'
 import {getRefs} from '../src/git-refs'
 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) {
-  process.env[`INPUT_${input.toUpperCase()}`] = value
-}
-
-// We want a clean ENV before each test. We use `delete`
-// since we want `undefined` values and not empty strings.
-function clearInputs() {
-  const allowedOptions = [
-    'FAIL-ON-SEVERITY',
-    'FAIL-ON-SCOPES',
-    'ALLOW-LICENSES',
-    'DENY-LICENSES',
-    'ALLOW-GHSAS',
-    'LICENSE-CHECK',
-    'VULNERABILITY-CHECK',
-    'CONFIG-FILE',
-    'BASE-REF',
-    'HEAD-REF'
-  ]
-
-  allowedOptions.forEach(option => {
-    delete process.env[`INPUT_${option.toUpperCase()}`]
-  })
-}
+import {setInput, clearInputs} from './test-helpers'
 
 beforeAll(() => {
   jest.spyOn(Utils, 'isSPDXValid').mockReturnValue(true)
@@ -103,60 +77,6 @@ test('it raises an error when no refs are provided and the event is not a pull r
   ).toThrow()
 })
 
-test('it reads an external config file', async () => {
-  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml')
-
-  const config = await readConfig()
-  expect(config.fail_on_severity).toEqual('critical')
-  expect(config.allow_licenses).toEqual(['BSD', 'GPL 2'])
-})
-
-test('raises an error when the config file was not found', async () => {
-  setInput('config-file', 'fixtures/i-dont-exist')
-  await expect(readConfig()).rejects.toThrow(/Unable to fetch/)
-})
-
-test('it parses options from both sources', async () => {
-  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml')
-
-  let config = await readConfig()
-  expect(config.fail_on_severity).toEqual('critical')
-
-  setInput('base-ref', 'a-custom-base-ref')
-  config = await readConfig()
-  expect(config.base_ref).toEqual('a-custom-base-ref')
-})
-
-test('in case of conflicts, the inline config is the source of truth', async () => {
-  setInput('fail-on-severity', 'low')
-  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml') // this will set fail-on-severity to 'critical'
-
-  const config = await readConfig()
-  expect(config.fail_on_severity).toEqual('low')
-})
-
-test('it uses the default values when loading external files', async () => {
-  setInput('config-file', './__tests__/fixtures/no-licenses-config.yml')
-  let config = await readConfig()
-  expect(config.allow_licenses).toEqual(undefined)
-  expect(config.deny_licenses).toEqual(undefined)
-
-  setInput('config-file', './__tests__/fixtures/license-config-sample.yml')
-  config = await readConfig()
-  expect(config.fail_on_severity).toEqual('low')
-})
-
-test('it accepts an external configuration filename', async () => {
-  setInput('config-file', './__tests__/fixtures/no-licenses-config.yml')
-  const config = await readConfig()
-  expect(config.fail_on_severity).toEqual('critical')
-})
-
-test('it raises an error when given an unknown severity in an external config file', async () => {
-  setInput('config-file', './__tests__/fixtures/invalid-severity-config.yml')
-  await expect(readConfig()).rejects.toThrow()
-})
-
 test('it defaults to runtime scope', async () => {
   const config = await readConfig()
   expect(config.fail_on_scopes).toEqual(['runtime'])
@@ -232,16 +152,6 @@ test('it is not possible to disable both checks', async () => {
   )
 })
 
-test('it supports comma-separated lists', async () => {
-  setInput(
-    'config-file',
-    './__tests__/fixtures/inline-license-config-sample.yml'
-  )
-  let config = await readConfig()
-
-  expect(config.allow_licenses).toEqual(['MIT', 'GPL-2.0-only'])
-})
-
 describe('licenses that are not valid SPDX licenses', () => {
   beforeAll(() => {
     jest.spyOn(Utils, 'isSPDXValid').mockReturnValue(false)

__tests__/external-config.test.ts

@@ -0,0 +1,111 @@
+import {expect, test, beforeEach} from '@jest/globals'
+import {readConfig} from '../src/config'
+import * as Utils from '../src/utils'
+import {setInput, clearInputs} from './test-helpers'
+
+const externalConfig = `fail_on_severity: 'high'
+allow_licenses: ['GPL-2.0-only']
+`
+const mockOctokit = {
+  rest: {
+    repos: {
+      getContent: jest.fn().mockReturnValue({data: externalConfig})
+    }
+  }
+}
+
+jest.mock('octokit', () => {
+  return {
+    // eslint-disable-next-line @typescript-eslint/no-extraneous-class
+    Octokit: class {
+      constructor() {
+        return mockOctokit
+      }
+    }
+  }
+})
+
+beforeAll(() => {
+  jest.spyOn(Utils, 'isSPDXValid').mockReturnValue(true)
+})
+
+beforeEach(() => {
+  clearInputs()
+})
+
+test('it reads an external config file', async () => {
+  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml')
+
+  const config = await readConfig()
+  expect(config.fail_on_severity).toEqual('critical')
+  expect(config.allow_licenses).toEqual(['BSD', 'GPL 2'])
+})
+
+test('raises an error when the config file was not found', async () => {
+  setInput('config-file', 'fixtures/i-dont-exist')
+  await expect(readConfig()).rejects.toThrow(/Unable to fetch/)
+})
+
+test('it parses options from both sources', async () => {
+  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml')
+
+  let config = await readConfig()
+  expect(config.fail_on_severity).toEqual('critical')
+
+  setInput('base-ref', 'a-custom-base-ref')
+  config = await readConfig()
+  expect(config.base_ref).toEqual('a-custom-base-ref')
+})
+
+test('in case of conflicts, the inline config is the source of truth', async () => {
+  setInput('fail-on-severity', 'low')
+  setInput('config-file', './__tests__/fixtures/config-allow-sample.yml') // this will set fail-on-severity to 'critical'
+
+  const config = await readConfig()
+  expect(config.fail_on_severity).toEqual('low')
+})
+
+test('it uses the default values when loading external files', async () => {
+  setInput('config-file', './__tests__/fixtures/no-licenses-config.yml')
+  let config = await readConfig()
+  expect(config.allow_licenses).toEqual(undefined)
+  expect(config.deny_licenses).toEqual(undefined)
+
+  setInput('config-file', './__tests__/fixtures/license-config-sample.yml')
+  config = await readConfig()
+  expect(config.fail_on_severity).toEqual('low')
+})
+
+test('it accepts an external configuration filename', async () => {
+  setInput('config-file', './__tests__/fixtures/no-licenses-config.yml')
+  const config = await readConfig()
+  expect(config.fail_on_severity).toEqual('critical')
+})
+
+test('it raises an error when given an unknown severity in an external config file', async () => {
+  setInput('config-file', './__tests__/fixtures/invalid-severity-config.yml')
+  await expect(readConfig()).rejects.toThrow()
+})
+
+test('it supports comma-separated lists', async () => {
+  setInput(
+    'config-file',
+    './__tests__/fixtures/inline-license-config-sample.yml'
+  )
+  const config = await readConfig()
+
+  expect(config.allow_licenses).toEqual(['MIT', 'GPL-2.0-only'])
+})
+
+test('it reads a config file hosted in another repo', async () => {
+  setInput(
+    'config-file',
+    'future-funk/anyone-cualkiera/external-config.yml@main'
+  )
+  setInput('external-repo-token', 'gh_viptoken')
+
+  const config = await readConfig()
+
+  expect(config.fail_on_severity).toEqual('high')
+  expect(config.allow_licenses).toEqual(['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__/fixtures/inline-license-config-sample.yml

@@ -1 +1 @@
-allow-licenses: MIT, GPL-2.0-only
+allow-licenses: "MIT, GPL-2.0-only"

__tests__/fixtures/invalid-severity-config.yml

@@ -1,3 +1,3 @@
-fail-on-severity: 'so many zombies'
-deny-licenses:
+fail_on_severity: 'so many zombies'
+deny_licenses:
   - MIT

__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')
+})

__tests__/test-helpers.ts

@@ -0,0 +1,28 @@
+// GitHub Action inputs come in the form of environment variables
+// with an INPUT prefix (e.g. INPUT_FAIL-ON-SEVERITY)
+export function setInput(input: string, value: string): void {
+  process.env[`INPUT_${input.toUpperCase()}`] = value
+}
+
+// We want a clean ENV before each test. We use `delete`
+// since we want `undefined` values and not empty strings.
+export function clearInputs(): void {
+  const allowedOptions = [
+    'FAIL-ON-SEVERITY',
+    'FAIL-ON-SCOPES',
+    'ALLOW-LICENSES',
+    'DENY-LICENSES',
+    'ALLOW-GHSAS',
+    'LICENSE-CHECK',
+    'VULNERABILITY-CHECK',
+    'CONFIG-FILE',
+    'BASE-REF',
+    'HEAD-REF',
+    'COMMENT-SUMMARY-IN-PR'
+  ]
+
+  // eslint-disable-next-line github/array-foreach
+  allowedOptions.forEach(option => {
+    delete process.env[`INPUT_${option.toUpperCase()}`]
+  })
+}

action.yml

@@ -1,3 +1,5 @@
+# Avoid using default values for options here since they will
+# end up overriding external configurations.
 name: 'Dependency Review'
 description: 'Prevent the introduction of dependencies with known vulnerabilities'
 author: 'GitHub'
@@ -9,11 +11,9 @@ inputs:
   fail-on-severity:
     description: Don't block PRs below this severity. Possible values are `low`, `moderate`, `high`, `critical`.
     required: false
-    default: 'low'
   fail-on-scopes:
     description: Dependency scopes to block PRs on. Comma-separated list. Possible values are 'unknown', 'runtime', and 'development' (e.g. "runtime, development")
     required: false
-    default: 'runtime'
   base-ref:
     description: The base git ref to be used for this check. Has a default value when the workflow event is `pull_request` or `pull_request_target`. Must be provided otherwise.
     required: false
@@ -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": "3.0.4",
   "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": "^2.0.22",
+    "octokit": "^2.0.14",
     "spdx-expression-parse": "^3.0.1",
     "spdx-satisfies": "^5.0.1",
     "yaml": "^2.2.1",
-    "zod": "^3.20.2"
+    "zod": "^3.21.4"
   },
   "devDependencies": {
     "@types/jest": "^27.5.2",
-    "@types/node": "^16.18.11",
-    "@typescript-eslint/eslint-plugin": "^5.45.0",
+    "@types/node": "^16.18.23",
+    "@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": "^5.57.0",
+    "@typescript-eslint/parser": "^5.57.0",
+    "@vercel/ncc": "^0.36.1",
     "esbuild-register": "^3.4.2",
-    "eslint": "^8.31.0",
-    "eslint-plugin-github": "^4.6.0",
+    "eslint": "^8.37.0",
+    "eslint-plugin-github": "^4.7.0",
     "eslint-plugin-jest": "^27.2.1",
     "jest": "^27.5.1",
     "js-yaml": "^4.1.0",
-    "nodemon": "^2.0.20",
-    "prettier": "2.8.2",
+    "nodemon": "^2.0.22",
+    "prettier": "2.8.7",
     "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"]
 }