clean up list formatting for PR comment

__tests__/summary.test.ts

@@ -1,5 +1,5 @@
 import {expect, jest, test} from '@jest/globals'
-import {Changes, ConfigurationOptions, Scorecard} from '../src/schemas'
+import {Change, Changes, ConfigurationOptions, Scorecard} from '../src/schemas'
 import * as summary from '../src/summary'
 import * as core from '@actions/core'
 import {createTestChange} from './fixtures/create-test-change'
@@ -109,6 +109,42 @@ test('prints headline as h1', () => {
   expect(text).toContain('<h1>Dependency Review</h1>')
 })
 
+test('returns minimal summary in case the core.summary is too large for a PR comment', () => {
+  let changes: Changes = [
+    createTestChange({name: 'lodash', version: '1.2.3'}),
+    createTestChange({name: 'colors', version: '2.3.4'}),
+    createTestChange({name: '@foo/bar', version: '*'}),
+  ]
+
+  let minSummary: string = summary.addSummaryToSummary(
+    changes,
+    emptyInvalidLicenseChanges,
+    emptyChanges,
+    scorecard,
+    defaultConfig
+  )
+
+  // side effect DR report into core.summary as happens in main.ts
+  summary.addScannedDependencies(changes)
+  const text = core.summary.stringify()
+
+  expect(text).toContain('<h1>Dependency Review</h1>')
+  expect(minSummary).toContain('# Dependency Review')
+
+  expect(text).toContain('❌ 3 vulnerable package(s)')
+  expect(text).not.toContain('* ❌ 3 vulnerable package(s)')
+  expect(text).toContain('lodash')
+  expect(text).toContain('colors')
+  expect(text).toContain('@foo/bar')
+
+  expect(minSummary).toContain('* ❌ 3 vulnerable package(s)')
+  expect(minSummary).not.toContain('lodash')
+  expect(minSummary).not.toContain('colors')
+  expect(minSummary).not.toContain('@foo/bar')
+
+  expect(text.length).toBeGreaterThan(minSummary.length)
+})
+
 test('only includes "No vulnerabilities or license issues found"-message if both are configured and nothing was found', () => {
   summary.addSummaryToSummary(
     emptyChanges,

dist/index.js

@@ -56,10 +56,10 @@ 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 -->';
-function commentPr(summary, config) {
+const MAX_COMMENT_LENGTH = 65536;
+function commentPr(summary, config, minComment) {
     return __awaiter(this, void 0, void 0, function* () {
         const commentContent = summary.stringify();
-        core.setOutput('comment-content', commentContent);
         if (!(config.comment_summary_in_pr === 'always' ||
             (config.comment_summary_in_pr === 'on-failure' &&
                 process.exitCode === core.ExitCode.Failure))) {
@@ -69,7 +69,11 @@ function commentPr(summary, config) {
             core.warning('Not in the context of a pull request. Skipping comment creation.');
             return;
         }
-        const commentBody = `${commentContent}\n\n${COMMENT_MARKER}`;
+        let commentBody = `${commentContent}\n\n${COMMENT_MARKER}`;
+        if (commentBody.length >= MAX_COMMENT_LENGTH) {
+            core.debug('The comment was too big for the GitHub API. Falling back on a minimum comment');
+            commentBody = `${minComment}\n\n${COMMENT_MARKER}`;
+        }
         try {
             const existingCommentId = yield findCommentByMarker(COMMENT_MARKER);
             if (existingCommentId) {
@@ -638,6 +642,7 @@ function run() {
             const deniedChanges = yield (0, deny_1.getDeniedChanges)(filteredChanges, config.deny_packages, config.deny_groups);
             const scorecard = yield (0, scorecard_1.getScorecardLevels)(filteredChanges);
             summary.addSummaryToSummary(vulnerableChanges, invalidLicenseChanges, deniedChanges, scorecard, config);
+            const minSummary = summary.getMinSummaryForComment(vulnerableChanges, invalidLicenseChanges, deniedChanges, scorecard, config);
             if (snapshot_warnings) {
                 summary.addSnapshotWarnings(config, snapshot_warnings);
             }
@@ -664,7 +669,7 @@ function run() {
             core.setOutput('dependency-changes', JSON.stringify(changes));
             summary.addScannedDependencies(changes);
             printScannedDependencies(changes);
-            yield (0, comment_pr_1.commentPr)(core.summary, config);
+            yield (0, comment_pr_1.commentPr)(core.summary, config, minSummary);
         }
         catch (error) {
             if (error instanceof request_error_1.RequestError && error.status === 404) {
@@ -1138,7 +1143,7 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.addDeniedToSummary = exports.addSnapshotWarnings = exports.addScorecardToSummary = exports.addScannedDependencies = exports.addLicensesToSummary = exports.addChangeVulnerabilitiesToSummary = exports.addSummaryToSummary = void 0;
+exports.addDeniedToSummary = exports.addSnapshotWarnings = exports.addScorecardToSummary = exports.addScannedDependencies = exports.addLicensesToSummary = exports.addChangeVulnerabilitiesToSummary = exports.addSummaryToSummary = exports.getMinSummaryForComment = void 0;
 const core = __importStar(__nccwpck_require__(2186));
 const utils_1 = __nccwpck_require__(918);
 const icons = {
@@ -1146,6 +1151,48 @@ const icons = {
     cross: '❌',
     warning: '⚠️'
 };
+function getMinSummaryForComment(vulnerableChanges, invalidLicenseChanges, deniedChanges, scorecard, config) {
+    const scorecardWarnings = countScorecardWarnings(scorecard, config);
+    const licenseIssues = countLicenseIssues(invalidLicenseChanges);
+    let minSummary = '# Dependency Review\n';
+    if (vulnerableChanges.length === 0 &&
+        licenseIssues === 0 &&
+        deniedChanges.length === 0 &&
+        scorecardWarnings === 0) {
+        const issueTypes = [
+            config.vulnerability_check ? 'vulnerabilities' : '',
+            config.license_check ? 'license issues' : '',
+            config.show_openssf_scorecard ? 'OpenSSF Scorecard issues' : ''
+        ];
+        if (issueTypes.filter(Boolean).length === 0) {
+            minSummary += `${icons.check} No issues found.`;
+        }
+        else {
+            minSummary += `${icons.check} No ${issueTypes.filter(Boolean).join(' or ')} found.`;
+        }
+    }
+    minSummary += 'The following issues were found:\n';
+    minSummary += config.vulnerability_check
+        ? `* ${checkOrFailIcon(vulnerableChanges.length)} ${vulnerableChanges.length} vulnerable package(s)\n`
+        : '';
+    minSummary += config.license_check
+        ? `* ${checkOrFailIcon(invalidLicenseChanges.forbidden.length)} ${invalidLicenseChanges.forbidden.length} package(s) with incompatible licenses\n
+* ${checkOrFailIcon(invalidLicenseChanges.unresolved.length)} ${invalidLicenseChanges.unresolved.length} package(s) with invalid SPDX license definitions\n
+* ${checkOrWarnIcon(invalidLicenseChanges.unlicensed.length)} ${invalidLicenseChanges.unlicensed.length} package(s) with unknown licenses.\n`
+        : '';
+    minSummary +=
+        deniedChanges.length > 0
+            ? `* ${checkOrWarnIcon(deniedChanges.length)} ${deniedChanges.length} package(s) denied.\n`
+            : '';
+    minSummary +=
+        config.show_openssf_scorecard && scorecardWarnings > 0
+            ? `* ${checkOrWarnIcon(scorecardWarnings)} ${scorecardWarnings ? scorecardWarnings : 'No'} packages with OpenSSF Scorecard issues.\n`
+            : '';
+    // Add the link to the job summary provided by GitHub Actions for this workflow run
+    minSummary += `\n[View full job summary](${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID})`;
+    return minSummary;
+}
+exports.getMinSummaryForComment = getMinSummaryForComment;
 function addSummaryToSummary(vulnerableChanges, invalidLicenseChanges, deniedChanges, scorecard, config) {
     const scorecardWarnings = countScorecardWarnings(scorecard, config);
     const licenseIssues = countLicenseIssues(invalidLicenseChanges);

src/comment-pr.ts

@@ -5,6 +5,8 @@ import * as retry from '@octokit/plugin-retry'
 import {RequestError} from '@octokit/request-error'
 import {ConfigurationOptions} from './schemas'
 
+export const MAX_COMMENT_LENGTH = 65536
+
 const retryingOctokit = githubUtils.GitHub.plugin(retry.retry)
 const octo = new retryingOctokit(
   githubUtils.getOctokitOptions(core.getInput('repo-token', {required: true}))
@@ -14,13 +16,9 @@ const octo = new retryingOctokit(
 const COMMENT_MARKER = '<!-- dependency-review-pr-comment-marker -->'
 
 export async function commentPr(
-  summary: typeof core.summary,
-  config: ConfigurationOptions
+  commentContent: string,
+  config: ConfigurationOptions,
 ): Promise<void> {
-  const commentContent = summary.stringify()
-
-  core.setOutput('comment-content', commentContent)
-
   if (
     !(
       config.comment_summary_in_pr === 'always' ||
@@ -38,7 +36,7 @@ export async function commentPr(
     return
   }
 
-  const commentBody = `${commentContent}\n\n${COMMENT_MARKER}`
+  let commentBody = `${commentContent}\n\n${COMMENT_MARKER}`
 
   try {
     const existingCommentId = await findCommentByMarker(COMMENT_MARKER)

src/main.ts

@@ -22,9 +22,13 @@ import * as summary from './summary'
 import {getRefs} from './git-refs'
 
 import {groupDependenciesByManifest} from './utils'
-import {commentPr} from './comment-pr'
+import {
+  commentPr,
+  MAX_COMMENT_LENGTH
+} from './comment-pr'
 import {getDeniedChanges} from './deny'
 
+
 async function delay(ms: number): Promise<void> {
   return new Promise(resolve => setTimeout(resolve, ms))
 }
@@ -127,7 +131,7 @@ async function run(): Promise<void> {
 
     const scorecard = await getScorecardLevels(filteredChanges)
 
-    summary.addSummaryToSummary(
+    const minSummary = summary.addSummaryToSummary(
       vulnerableChanges,
       invalidLicenseChanges,
       deniedChanges,
@@ -166,7 +170,21 @@ async function run(): Promise<void> {
     core.setOutput('dependency-changes', JSON.stringify(changes))
     summary.addScannedDependencies(changes)
     printScannedDependencies(changes)
-    await commentPr(core.summary, config)
+
+    // include full summary in output; Actions will truncate if oversized
+    let rendered = core.summary.stringify()
+    core.setOutput('content-comment', rendered)
+
+    // if the summary is oversized, replace with minimal version
+    if (rendered.length >= MAX_COMMENT_LENGTH) {
+      core.debug(
+        'The comment was too big for the GitHub API. Falling back on a minimum comment'
+      )
+      rendered = minSummary
+    }
+
+    // update the PR comment if needed with the right-sized summary
+    await commentPr(rendered, config)
   } catch (error) {
     if (error instanceof RequestError && error.status === 404) {
       core.setFailed(

src/summary.ts

@@ -10,17 +10,23 @@ const icons = {
   warning: '⚠️'
 }
 
+// generates the DR report summmary and caches it to the Action's core.summary.
+// returns the DR summary string, ready to be posted as a PR comment if the
+// final DR report is too large
 export function addSummaryToSummary(
   vulnerableChanges: Changes,
   invalidLicenseChanges: InvalidLicenseChanges,
   deniedChanges: Changes,
   scorecard: Scorecard,
-  config: ConfigurationOptions
-): void {
+  config: ConfigurationOptions,
+): string {
+  let out: string[] = [];
+
   const scorecardWarnings = countScorecardWarnings(scorecard, config)
   const licenseIssues = countLicenseIssues(invalidLicenseChanges)
 
   core.summary.addHeading('Dependency Review', 1)
+  out.push('# Dependency Review')
 
   if (
     vulnerableChanges.length === 0 &&
@@ -33,54 +39,67 @@ export function addSummaryToSummary(
       config.license_check ? 'license issues' : '',
       config.show_openssf_scorecard ? 'OpenSSF Scorecard issues' : ''
     ]
+
+    let msg = ''
     if (issueTypes.filter(Boolean).length === 0) {
-      core.summary.addRaw(`${icons.check} No issues found.`)
+      msg = `${icons.check} No issues found.`
     } else {
-      core.summary.addRaw(
-        `${icons.check} No ${issueTypes.filter(Boolean).join(' or ')} found.`
-      )
+      msg = `${icons.check} No ${issueTypes.filter(Boolean).join(' or ')} found.`
     }
 
-    return
+    core.summary.addRaw(msg)
+    out.push(msg)
+    return out.join('\n')
   }
 
-  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)} ${
-              invalidLicenseChanges.unlicensed.length
-            } package(s) with unknown licenses.`
-          ]
-        : []),
-      ...(deniedChanges.length > 0
-        ? [
-            `${checkOrWarnIcon(deniedChanges.length)} ${
-              deniedChanges.length
-            } package(s) denied.`
-          ]
-        : []),
-      ...(config.show_openssf_scorecard && scorecardWarnings > 0
-        ? [
-            `${checkOrWarnIcon(scorecardWarnings)} ${scorecardWarnings ? scorecardWarnings : 'No'} packages with OpenSSF Scorecard issues.`
-          ]
-        : [])
-    ])
-    .addRaw('See the Details below.')
+  const foundIssuesHeader =  'The following issues were found:'
+  core.summary.addRaw(foundIssuesHeader)
+  out.push(foundIssuesHeader)
+
+  const summaryList: string[] = [
+     ...(config.vulnerability_check
+      ? [
+          `${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)} ${
+            invalidLicenseChanges.unlicensed.length
+          } package(s) with unknown licenses.`
+        ]
+      : []),
+    ...(deniedChanges.length > 0
+      ? [
+          `${checkOrWarnIcon(deniedChanges.length)} ${
+            deniedChanges.length
+          } package(s) denied.`
+        ]
+      : []),
+    ...(config.show_openssf_scorecard && scorecardWarnings > 0
+      ? [
+          `${checkOrWarnIcon(scorecardWarnings)} ${scorecardWarnings ? scorecardWarnings : 'No'} packages with OpenSSF Scorecard issues.`
+        ]
+      : [])
+  ];
+
+  core.summary.addList(summaryList)
+  summaryList.forEach( (line) => {
+    out.push('* ' + line)
+  })
+
+  core.summary.addRaw('See the Details below.')
+  out.push(`\n[View full job summary](${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID})`)
+
+  return out.join('\n')
 }
 
 function countScorecardWarnings(