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/** | ||
* This script updates changelogs after lerna has updated versions in the respective areas (packages/*, experimental/packages/*) | ||
* - removes all empty subsections (bugs, enhancements, etc.) in the changelog. | ||
* - replaces the "Unreleased"-header with the version from the first non-private package in the directory (versions are expected to be uniform across a changelog) | ||
* - adds a new "Unreleased"-header with empty subsections at the top | ||
* | ||
* Usage (from project root): | ||
* - node scripts/update-changelog.js [PATH TO CHANGELOG] [DIRECTORY CONTAINING ASSOCIATED PACKAGES] | ||
* Examples: | ||
* - node scripts/update-changelog.js ./CHANGELOG.md ./packages | ||
* - node scripts/update-changelog.js ./experimental/CHANGELOG.md ./experimental/packages | ||
*/ | ||
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const fs = require('fs'); | ||
const path = require("path"); | ||
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const EMPTY_UNRELEASED_SECTION = `## Unreleased | ||
### :boom: Breaking Change | ||
### :rocket: (Enhancement) | ||
### :bug: (Bug Fix) | ||
### :books: (Refine Doc) | ||
### :house: (Internal) | ||
` | ||
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function findFirstPackageVersion(basePath){ | ||
const packageDirs = fs.readdirSync(basePath); | ||
for(const packageDir of packageDirs){ | ||
const packageJsonPath = path.join(basePath, packageDir, 'package.json'); | ||
try { | ||
const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf-8')); | ||
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if(packageJson.private === true || packageJson.private === 'true'){ | ||
console.log('Skipping version from private package at', packageJsonPath); | ||
continue; | ||
} | ||
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if(packageJson.version != null){ | ||
return packageJson.version; | ||
} | ||
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console.log('Version in', packageJsonPath, 'was null or undefined, skipping'); | ||
} catch (err) { | ||
console.log('Could not get package JSON', packageJsonPath, err); | ||
} | ||
} | ||
throw new Error('Unable to extract version from packages in ' + basePath); | ||
} | ||
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// no special handling for bad args as this is only intended for use via predefined npm scripts. | ||
const changelogPath = path.resolve(process.argv[2]); | ||
const version = findFirstPackageVersion(path.resolve(process.argv[3])); | ||
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const changelog = fs.readFileSync(changelogPath, 'utf8').toString() | ||
// replace all empty sections | ||
.replace(new RegExp('^###.*\n*(?=^##)', 'gm'), '') | ||
// replace unreleased header with new unreleased section and a version header for the former unreleased section | ||
.replace(RegExp('## Unreleased'), EMPTY_UNRELEASED_SECTION + '## ' + version); | ||
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fs.writeFileSync(changelogPath, changelog); |