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| 1 | +import { exec as cpExec } from 'node:child_process' |
| 2 | +import { promisify } from 'node:util' |
| 3 | +import fs from 'node:fs/promises' |
| 4 | +import path from 'node:path' |
| 5 | + |
| 6 | +const exec = promisify(cpExec) |
| 7 | + |
| 8 | +const run = async (cmd, opts = {}) => { |
| 9 | + try { |
| 10 | + const { stdout } = await exec(cmd, { ...opts }) |
| 11 | + return stdout.trim() |
| 12 | + } catch (err) { |
| 13 | + return '' |
| 14 | + } |
| 15 | +} |
| 16 | + |
| 17 | +const ensureGitUser = async () => { |
| 18 | + await run("git config user.name 'github-actions[bot]'") |
| 19 | + await run("git config user.email '41898282+github-actions[bot]@users.noreply.github.com'") |
| 20 | +} |
| 21 | + |
| 22 | +const getLastTag = async () => { |
| 23 | + const tag = await run('git describe --tags --abbrev=0') |
| 24 | + return tag || '' |
| 25 | +} |
| 26 | + |
| 27 | +const getCommitBlocks = async range => { |
| 28 | + const logCmd = range |
| 29 | + ? `git log ${range} --pretty=format:%s%n%b%n==END==` |
| 30 | + : 'git log --pretty=format:%s%n%b%n==END==' |
| 31 | + const out = await run(logCmd) |
| 32 | + if (!out) return [] |
| 33 | + return out |
| 34 | + .split('==END==') |
| 35 | + .map(s => s.trim()) |
| 36 | + .filter(Boolean) |
| 37 | +} |
| 38 | + |
| 39 | +const determineBump = commits => { |
| 40 | + let hasBreaking = false |
| 41 | + let hasFeat = false |
| 42 | + let hasFix = false |
| 43 | + let hasChore = false |
| 44 | + |
| 45 | + const typeBang = /^([a-z]+)(\([^)]*\))?!:/i |
| 46 | + const feat = /^feat(\([^)]*\))?:/i |
| 47 | + const fix = /^fix(\([^)]*\))?:/i |
| 48 | + const chore = /^chore(\([^)]*\))?:/i |
| 49 | + |
| 50 | + for (const block of commits) { |
| 51 | + const lines = block.split('\n') |
| 52 | + const subject = (lines.shift() || '').trim() |
| 53 | + const body = lines.join('\n') |
| 54 | + |
| 55 | + if (typeBang.test(subject)) hasBreaking = true |
| 56 | + if (/BREAKING CHANGE/i.test(body)) hasBreaking = true |
| 57 | + |
| 58 | + if (feat.test(subject)) hasFeat = true |
| 59 | + if (fix.test(subject)) hasFix = true |
| 60 | + if (chore.test(subject)) hasChore = true |
| 61 | + } |
| 62 | + |
| 63 | + if (hasBreaking) return 'major' |
| 64 | + if (hasFeat) return 'minor' |
| 65 | + if (hasFix || hasChore) return 'patch' |
| 66 | + return 'none' |
| 67 | +} |
| 68 | + |
| 69 | +const parseVersion = v => { |
| 70 | + const cleaned = String(v || '0.0.0').replace(/^v/, '') |
| 71 | + const [maj, min, pat] = cleaned.split('.').map(n => parseInt(n || '0', 10)) |
| 72 | + return [isNaN(maj) ? 0 : maj, isNaN(min) ? 0 : min, isNaN(pat) ? 0 : pat] |
| 73 | +} |
| 74 | + |
| 75 | +const incVersion = (version, level) => { |
| 76 | + let [maj, min, pat] = parseVersion(version) |
| 77 | + if (level === 'major') { |
| 78 | + maj += 1 |
| 79 | + min = 0 |
| 80 | + pat = 0 |
| 81 | + } else if (level === 'minor') { |
| 82 | + min += 1 |
| 83 | + pat = 0 |
| 84 | + } else if (level === 'patch') { |
| 85 | + pat += 1 |
| 86 | + } |
| 87 | + return `${maj}.${min}.${pat}` |
| 88 | +} |
| 89 | + |
| 90 | +const readPackageJson = async () => { |
| 91 | + const pkgPath = path.join(process.cwd(), 'package.json') |
| 92 | + const json = await fs.readFile(pkgPath, 'utf8') |
| 93 | + const pkg = JSON.parse(json) |
| 94 | + return { pkgPath, pkg } |
| 95 | +} |
| 96 | + |
| 97 | +const writePackageJson = async (pkgPath, pkg) => { |
| 98 | + const json = JSON.stringify(pkg, null, 2) + '\n' |
| 99 | + await fs.writeFile(pkgPath, json, 'utf8') |
| 100 | +} |
| 101 | + |
| 102 | +const main = async () => { |
| 103 | + const isDryRun = process.argv.includes('--dry-run') || ['1', 'true', 'yes'].includes(String(process.env.DRY_RUN || '').toLowerCase()) |
| 104 | + |
| 105 | + await ensureGitUser() |
| 106 | + await run('git fetch --tags --force') |
| 107 | + |
| 108 | + const lastTag = await getLastTag() |
| 109 | + if (!lastTag) { |
| 110 | + console.log('no existing tag found — skipping release to avoid scanning entire history. create an initial baseline tag like v0.0.0') |
| 111 | + if (process.env.GITHUB_OUTPUT) { |
| 112 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 113 | + } |
| 114 | + return |
| 115 | + } |
| 116 | + |
| 117 | + const range = `${lastTag}..HEAD` |
| 118 | + const commits = await getCommitBlocks(range) |
| 119 | + |
| 120 | + if (commits.length === 0) { |
| 121 | + console.log(`no commits found since ${lastTag || 'beginning'} — nothing to release`) |
| 122 | + if (process.env.GITHUB_OUTPUT) { |
| 123 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 124 | + } |
| 125 | + return |
| 126 | + } |
| 127 | + |
| 128 | + const bump = determineBump(commits) |
| 129 | + if (bump === 'none') { |
| 130 | + console.log('no conventional commits requiring a release — exiting') |
| 131 | + if (process.env.GITHUB_OUTPUT) { |
| 132 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 133 | + } |
| 134 | + return |
| 135 | + } |
| 136 | + |
| 137 | + const { pkgPath, pkg } = await readPackageJson() |
| 138 | + const baseVersion = lastTag.replace(/^v/, '') |
| 139 | + const newVersion = incVersion(baseVersion, bump) |
| 140 | + const newTag = `v${newVersion}` |
| 141 | + |
| 142 | + if (lastTag && lastTag.replace(/^v/, '') === newVersion) { |
| 143 | + console.log(`computed version ${newVersion} equals last tag ${lastTag} — nothing to do`) |
| 144 | + if (process.env.GITHUB_OUTPUT) { |
| 145 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 146 | + } |
| 147 | + return |
| 148 | + } |
| 149 | + |
| 150 | + // do not recreate an existing tag |
| 151 | + const tagExists = (await run(`git tag -l ${newTag}`)).trim() === newTag |
| 152 | + if (tagExists) { |
| 153 | + console.log(`tag ${newTag} already exists — skipping`) |
| 154 | + if (process.env.GITHUB_OUTPUT) { |
| 155 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 156 | + } |
| 157 | + return |
| 158 | + } |
| 159 | + |
| 160 | + if (isDryRun) { |
| 161 | + const currentPkgVersion = pkg.version || 'unknown' |
| 162 | + console.log('[dry-run] last tag:', lastTag) |
| 163 | + console.log('[dry-run] bump type:', bump) |
| 164 | + console.log('[dry-run] package.json current version:', currentPkgVersion) |
| 165 | + console.log('[dry-run] would set package.json version to:', newVersion) |
| 166 | + console.log('[dry-run] would create tag:', newTag) |
| 167 | + console.log('[dry-run] would commit with message:', `chore(release): v${newVersion} [skip ci]`) |
| 168 | + if (process.env.GITHUB_OUTPUT) { |
| 169 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=false\n') |
| 170 | + } |
| 171 | + return |
| 172 | + } |
| 173 | + |
| 174 | + pkg.version = newVersion |
| 175 | + await writePackageJson(pkgPath, pkg) |
| 176 | + |
| 177 | + await run('git add package.json') |
| 178 | + const commitMsg = `chore(release): v${newVersion} [skip ci]` |
| 179 | + await run(`git commit -m "${commitMsg}"`) |
| 180 | + |
| 181 | + await run(`git tag -a ${newTag} -m "release ${newTag}"`) |
| 182 | + |
| 183 | + const branch = await run('git rev-parse --abbrev-ref HEAD') |
| 184 | + await run(`git push origin ${branch}`) |
| 185 | + await run(`git push origin ${newTag}`) |
| 186 | + |
| 187 | + console.log(`released ${newTag} from base ${lastTag} and pushed changes`) |
| 188 | + if (process.env.GITHUB_OUTPUT) { |
| 189 | + await fs.appendFile(process.env.GITHUB_OUTPUT, 'released=true\n') |
| 190 | + } |
| 191 | +} |
| 192 | + |
| 193 | +await main() |
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