|  | 
|  | 1 | +import os from 'node:os'; | 
|  | 2 | +import path from 'node:path'; | 
|  | 3 | +import { getMetadata } from '../components/metadata.js'; | 
|  | 4 | + | 
|  | 5 | +import { | 
|  | 6 | +  runAsync, runSync, forceRunAsync | 
|  | 7 | +} from './run.js'; | 
|  | 8 | +import { writeFile } from './file.js'; | 
|  | 9 | +import { | 
|  | 10 | +  shortSha, getEditor | 
|  | 11 | +} from './utils.js'; | 
|  | 12 | +import { getNcuDir } from './config.js'; | 
|  | 13 | + | 
|  | 14 | +const LINT_RESULTS = { | 
|  | 15 | +  SKIPPED: 'skipped', | 
|  | 16 | +  FAILED: 'failed', | 
|  | 17 | +  SUCCESS: 'success' | 
|  | 18 | +}; | 
|  | 19 | + | 
|  | 20 | +export default class CheckPick { | 
|  | 21 | +  constructor(prid, dir, cli, { | 
|  | 22 | +    owner, | 
|  | 23 | +    repo, | 
|  | 24 | +    lint, | 
|  | 25 | +    includeCVE | 
|  | 26 | +  } = {}) { | 
|  | 27 | +    this.prid = prid; | 
|  | 28 | +    this.cli = cli; | 
|  | 29 | +    this.dir = dir; | 
|  | 30 | +    this.options = { owner, repo, lint, includeCVE }; | 
|  | 31 | +  } | 
|  | 32 | + | 
|  | 33 | +  get includeCVE() { | 
|  | 34 | +    return this.options.includeCVE ?? false; | 
|  | 35 | +  } | 
|  | 36 | + | 
|  | 37 | +  get owner() { | 
|  | 38 | +    return this.options.owner || 'nodejs'; | 
|  | 39 | +  } | 
|  | 40 | + | 
|  | 41 | +  get repo() { | 
|  | 42 | +    return this.options.repo || 'node'; | 
|  | 43 | +  } | 
|  | 44 | + | 
|  | 45 | +  get lint() { | 
|  | 46 | +    return this.options.lint; | 
|  | 47 | +  } | 
|  | 48 | + | 
|  | 49 | +  getUpstreamHead() { | 
|  | 50 | +    const { upstream, branch } = this; | 
|  | 51 | +    return runSync('git', ['rev-parse', `${upstream}/${branch}`]).trim(); | 
|  | 52 | +  } | 
|  | 53 | + | 
|  | 54 | +  getCurrentRev() { | 
|  | 55 | +    return runSync('git', ['rev-parse', 'HEAD']).trim(); | 
|  | 56 | +  } | 
|  | 57 | + | 
|  | 58 | +  getStrayCommits(verbose) { | 
|  | 59 | +    const { upstream, branch } = this; | 
|  | 60 | +    const ref = `${upstream}/${branch}...HEAD`; | 
|  | 61 | +    const gitCmd = verbose | 
|  | 62 | +      ? ['log', '--oneline', '--reverse', ref] | 
|  | 63 | +      : ['rev-list', '--reverse', ref]; | 
|  | 64 | +    const revs = runSync('git', gitCmd).trim(); | 
|  | 65 | +    return revs ? revs.split('\n') : []; | 
|  | 66 | +  } | 
|  | 67 | + | 
|  | 68 | +  get ncuDir() { | 
|  | 69 | +    return getNcuDir(this.dir); | 
|  | 70 | +  } | 
|  | 71 | + | 
|  | 72 | +  get pullDir() { | 
|  | 73 | +    return path.resolve(this.ncuDir, `${this.prid}`); | 
|  | 74 | +  } | 
|  | 75 | + | 
|  | 76 | +  getMessagePath(rev) { | 
|  | 77 | +    return path.resolve(this.pullDir, `${shortSha(rev)}.COMMIT_EDITMSG`); | 
|  | 78 | +  } | 
|  | 79 | + | 
|  | 80 | +  saveMessage(rev, message) { | 
|  | 81 | +    const file = this.getMessagePath(rev); | 
|  | 82 | +    writeFile(file, message); | 
|  | 83 | +    return file; | 
|  | 84 | +  } | 
|  | 85 | + | 
|  | 86 | +  async start() { | 
|  | 87 | +    const { cli } = this; | 
|  | 88 | + | 
|  | 89 | +    const metadata = await getMetadata({ | 
|  | 90 | +      prid: this.prid, | 
|  | 91 | +      owner: this.owner, | 
|  | 92 | +      repo: this.repo | 
|  | 93 | +    }, false, cli); | 
|  | 94 | +    const expectedCommitShas = | 
|  | 95 | +      metadata.data.commits.map(({ commit }) => commit.oid); | 
|  | 96 | + | 
|  | 97 | +    const amend = await cli.prompt( | 
|  | 98 | +      'Would you like to amend this PR to the proposal?', | 
|  | 99 | +      { default: true } | 
|  | 100 | +    ); | 
|  | 101 | + | 
|  | 102 | +    if (!amend) { | 
|  | 103 | +      return true; | 
|  | 104 | +    } | 
|  | 105 | + | 
|  | 106 | +    try { | 
|  | 107 | +      const commitInfo = await this.downloadAndPatch(expectedCommitShas); | 
|  | 108 | +      const cleanLint = await this.validateLint(); | 
|  | 109 | +      if (cleanLint === LINT_RESULTS.FAILED) { | 
|  | 110 | +        cli.error('Patch still contains lint errors. ' + | 
|  | 111 | +          'Please fix manually before proceeding'); | 
|  | 112 | +        return false; | 
|  | 113 | +      } else if (cleanLint === LINT_RESULTS.SUCCESS) { | 
|  | 114 | +        cli.ok('Lint passed cleanly'); | 
|  | 115 | +      } | 
|  | 116 | +      return this.amend(metadata.metadata, commitInfo); | 
|  | 117 | +    } catch (e) { | 
|  | 118 | +      cli.error(e.message); | 
|  | 119 | +      return false; | 
|  | 120 | +    } | 
|  | 121 | +  } | 
|  | 122 | + | 
|  | 123 | +  async downloadAndPatch(expectedCommitShas) { | 
|  | 124 | +    const { cli, repo, owner, prid } = this; | 
|  | 125 | + | 
|  | 126 | +    cli.startSpinner(`Downloading patch for ${prid}`); | 
|  | 127 | +    // fetch via ssh to handle private repo | 
|  | 128 | +    await runAsync('git', [ | 
|  | 129 | +      'fetch', `[email protected]:${owner}/${repo}.git`, | 
|  | 130 | +      `refs/pull/${prid}/merge`]); | 
|  | 131 | +    // We fetched the commit that would result if we used `git merge`. | 
|  | 132 | +    // ^1 and ^2 refer to the PR base and the PR head, respectively. | 
|  | 133 | +    const [base, head] = await runAsync('git', | 
|  | 134 | +      ['rev-parse', 'FETCH_HEAD^1', 'FETCH_HEAD^2'], | 
|  | 135 | +      { captureStdout: 'lines' }); | 
|  | 136 | +    const commitShas = await runAsync('git', | 
|  | 137 | +      ['rev-list', `${base}..${head}`], | 
|  | 138 | +      { captureStdout: 'lines' }); | 
|  | 139 | +    cli.stopSpinner(`Fetched commits as ${shortSha(base)}..${shortSha(head)}`); | 
|  | 140 | +    cli.separator(); | 
|  | 141 | + | 
|  | 142 | +    const mismatchedCommits = [ | 
|  | 143 | +      ...commitShas.filter((sha) => !expectedCommitShas.includes(sha)) | 
|  | 144 | +        .map((sha) => `Unexpected commit ${sha}`), | 
|  | 145 | +      ...expectedCommitShas.filter((sha) => !commitShas.includes(sha)) | 
|  | 146 | +        .map((sha) => `Missing commit ${sha}`) | 
|  | 147 | +    ].join('\n'); | 
|  | 148 | +    if (mismatchedCommits.length > 0) { | 
|  | 149 | +      throw new Error(`Mismatched commits:\n${mismatchedCommits}`); | 
|  | 150 | +    } | 
|  | 151 | + | 
|  | 152 | +    const commitInfo = { base, head, shas: commitShas }; | 
|  | 153 | + | 
|  | 154 | +    try { | 
|  | 155 | +      await forceRunAsync('git', ['cherry-pick', `${base}..${head}`], { | 
|  | 156 | +        ignoreFailure: false | 
|  | 157 | +      }); | 
|  | 158 | +    } catch (ex) { | 
|  | 159 | +      await forceRunAsync('git', ['cherry-pick', '--abort']); | 
|  | 160 | +      throw new Error('Failed to apply patches'); | 
|  | 161 | +    } | 
|  | 162 | + | 
|  | 163 | +    cli.ok('Patches applied'); | 
|  | 164 | +    return commitInfo; | 
|  | 165 | +  } | 
|  | 166 | + | 
|  | 167 | +  async validateLint() { | 
|  | 168 | +    // The linter is currently only run on non-Windows platforms. | 
|  | 169 | +    if (os.platform() === 'win32') { | 
|  | 170 | +      return LINT_RESULTS.SKIPPED; | 
|  | 171 | +    } | 
|  | 172 | + | 
|  | 173 | +    if (!this.lint) { | 
|  | 174 | +      return LINT_RESULTS.SKIPPED; | 
|  | 175 | +    } | 
|  | 176 | + | 
|  | 177 | +    try { | 
|  | 178 | +      await runAsync('make', ['lint']); | 
|  | 179 | +      return LINT_RESULTS.SUCCESS; | 
|  | 180 | +    } catch { | 
|  | 181 | +      return LINT_RESULTS.FAILED; | 
|  | 182 | +    } | 
|  | 183 | +  } | 
|  | 184 | + | 
|  | 185 | +  async amend(metadata, commitInfo) { | 
|  | 186 | +    const { cli } = this; | 
|  | 187 | +    const subjects = await runAsync('git', | 
|  | 188 | +      ['log', '--pretty=format:%s', `${commitInfo.base}..${commitInfo.head}`], | 
|  | 189 | +      { captureStdout: 'lines' }); | 
|  | 190 | + | 
|  | 191 | +    if (commitInfo.shas.length !== 1) { | 
|  | 192 | +      const fixupAll = await cli.prompt( | 
|  | 193 | +        `${subjects.length} commits from the original PR are going to be` + | 
|  | 194 | +        'squashed into a single commit. OK to proceed?', { | 
|  | 195 | +          defaultAnswer: true | 
|  | 196 | +        }); | 
|  | 197 | +      if (!fixupAll) { | 
|  | 198 | +        // TODO: add this support? | 
|  | 199 | +        throw new Error(`There are ${subjects.length} commits in the PR ` + | 
|  | 200 | +          'and the ammend were not able to succeed'); | 
|  | 201 | +      } | 
|  | 202 | +      await runAsync('git', ['reset', '--soft', `HEAD~${subjects.length - 1}`]); | 
|  | 203 | +      await runAsync('git', ['commit', '--amend', '--no-edit']); | 
|  | 204 | +    } | 
|  | 205 | + | 
|  | 206 | +    return this._amend(metadata); | 
|  | 207 | +  } | 
|  | 208 | + | 
|  | 209 | +  async _amend(metadataStr) { | 
|  | 210 | +    const { cli } = this; | 
|  | 211 | + | 
|  | 212 | +    const rev = this.getCurrentRev(); | 
|  | 213 | +    const original = runSync('git', [ | 
|  | 214 | +      'show', 'HEAD', '-s', '--format=%B' | 
|  | 215 | +    ]).trim(); | 
|  | 216 | +    // git has very specific rules about what is a trailer and what is not. | 
|  | 217 | +    // Instead of trying to implement those ourselves, let git parse the | 
|  | 218 | +    // original commit message and see if it outputs any trailers. | 
|  | 219 | +    const originalHasTrailers = runSync('git', [ | 
|  | 220 | +      'interpret-trailers', '--parse', '--no-divider' | 
|  | 221 | +    ], { | 
|  | 222 | +      input: `${original}\n` | 
|  | 223 | +    }).trim().length !== 0; | 
|  | 224 | +    const metadata = metadataStr.trim().split('\n'); | 
|  | 225 | +    const amended = original.split('\n'); | 
|  | 226 | + | 
|  | 227 | +    // If the original commit message already contains trailers (such as | 
|  | 228 | +    // "Co-authored-by"), we simply add our own metadata after those. Otherwise, | 
|  | 229 | +    // we have to add an empty line so that git recognizes our own metadata as | 
|  | 230 | +    // trailers in the amended commit message. | 
|  | 231 | +    if (!originalHasTrailers) { | 
|  | 232 | +      amended.push(''); | 
|  | 233 | +    } | 
|  | 234 | + | 
|  | 235 | +    const BACKPORT_RE = /BACKPORT-PR-URL\s*:\s*(\S+)/i; | 
|  | 236 | +    const PR_RE = /PR-URL\s*:\s*(\S+)/i; | 
|  | 237 | +    const REVIEW_RE = /Reviewed-By\s*:\s*(\S+)/i; | 
|  | 238 | +    const CVE_RE = /CVE-ID\s*:\s*(\S+)/i; | 
|  | 239 | + | 
|  | 240 | +    let containCVETrailer = false; | 
|  | 241 | +    for (const line of metadata) { | 
|  | 242 | +      if (line.length !== 0 && original.includes(line)) { | 
|  | 243 | +        if (line.match(CVE_RE)) { | 
|  | 244 | +          containCVETrailer = true; | 
|  | 245 | +        } | 
|  | 246 | +        if (originalHasTrailers) { | 
|  | 247 | +          cli.warn(`Found ${line}, skipping..`); | 
|  | 248 | +        } else { | 
|  | 249 | +          throw new Error( | 
|  | 250 | +            'Git found no trailers in the original commit message, ' + | 
|  | 251 | +            `but '${line}' is present and should be a trailer.`); | 
|  | 252 | +        } | 
|  | 253 | +      } else { | 
|  | 254 | +        if (line.match(BACKPORT_RE)) { | 
|  | 255 | +          let prIndex = amended.findIndex(datum => datum.match(PR_RE)); | 
|  | 256 | +          if (prIndex === -1) { | 
|  | 257 | +            prIndex = amended.findIndex(datum => datum.match(REVIEW_RE)) - 1; | 
|  | 258 | +          } | 
|  | 259 | +          amended.splice(prIndex + 1, 0, line); | 
|  | 260 | +        } else { | 
|  | 261 | +          amended.push(line); | 
|  | 262 | +        } | 
|  | 263 | +      } | 
|  | 264 | +    } | 
|  | 265 | + | 
|  | 266 | +    if (!containCVETrailer && this.includeCVE) { | 
|  | 267 | +      const cveID = await cli.prompt( | 
|  | 268 | +        'Git found no CVE-ID trailer in the original commit message. ' + | 
|  | 269 | +        'Please, provide the CVE-ID', | 
|  | 270 | +        { questionType: 'input', defaultAnswer: 'CVE-2023-XXXXX' } | 
|  | 271 | +      ); | 
|  | 272 | +      amended.push('CVE-ID: ' + cveID); | 
|  | 273 | +    } | 
|  | 274 | + | 
|  | 275 | +    const message = amended.join('\n'); | 
|  | 276 | +    const messageFile = this.saveMessage(rev, message); | 
|  | 277 | +    cli.separator('New Message'); | 
|  | 278 | +    cli.log(message.trim()); | 
|  | 279 | +    const takeMessage = await cli.prompt('Use this message?'); | 
|  | 280 | +    if (takeMessage) { | 
|  | 281 | +      await runAsync('git', ['commit', '--amend', '-F', messageFile]); | 
|  | 282 | +      return true; | 
|  | 283 | +    } | 
|  | 284 | + | 
|  | 285 | +    const editor = await getEditor({ git: true }); | 
|  | 286 | +    if (editor) { | 
|  | 287 | +      try { | 
|  | 288 | +        await forceRunAsync( | 
|  | 289 | +          editor, | 
|  | 290 | +          [`"${messageFile}"`], | 
|  | 291 | +          { ignoreFailure: false, spawnArgs: { shell: true } } | 
|  | 292 | +        ); | 
|  | 293 | +        await runAsync('git', ['commit', '--amend', '-F', messageFile]); | 
|  | 294 | +        return true; | 
|  | 295 | +      } catch { | 
|  | 296 | +        cli.warn(`Please manually edit ${messageFile}, then run\n` + | 
|  | 297 | +          `\`git commit --amend -F ${messageFile}\` ` + | 
|  | 298 | +          'to finish amending the message'); | 
|  | 299 | +        throw new Error( | 
|  | 300 | +          'Failed to edit the message using the configured editor'); | 
|  | 301 | +      } | 
|  | 302 | +    } | 
|  | 303 | +  } | 
|  | 304 | +} | 
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