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'use strict'
/*
Usage:
node scripts/changelog.js [comittish]
Generates changelog entries in our format as best as its able based on
commits starting at comittish, or if that's not passed, latest.
Ordinarily this is run via the gen-changelog shell script, which appends
the result to the changelog.
*/
const execSync = require('child_process').execSync
const branch = process.argv[2] || 'origin/latest'
const log = execSync(`git log --reverse --pretty='format:%h' ${branch}...`)
.toString()
.split(/\n/)
function printCommit (c) {
console.log(`* [\`${c.hash}\`](${c.url})`)
for (const pr of c.prs) {
console.log(` [#${pr.number}](${pr.url})`)
// remove the (#111) relating to this pull request from the commit message,
// since we manually add the link outside of the commit message
const msgRe = new RegExp(`\\s*\\(#${pr.number}\\)`, 'g')
c.message = c.message.replace(msgRe, '')
}
// no need to indent this output, it's already got 2 spaces
console.log(c.message)
// no credit for deps commits, leading spaces are important here
if (!c.message.startsWith(' deps')) {
for (const user of c.credit) {
console.log(` ([${user.name}](${user.url}))`)
}
}
}
const main = async () => {
const query = `
fragment commitCredit on GitObject {
... on Commit {
message
url
authors (first:10) {
nodes {
user {
login
url
}
email
name
}
}
associatedPullRequests (first:10) {
nodes {
number
url
merged
}
}
}
}
query {
repository (owner:"npm", name:"cli") {
${log.map((sha) => `_${sha}: object (expression: "${sha}") {
...commitCredit
}`).join('\n')}
}
}
`
const response = execSync(`gh api graphql -f query='${query}'`).toString()
const body = JSON.parse(response)
for (const [hash, data] of Object.entries(body.data.repository)) {
const commit = {
hash: hash.slice(1), // remove leading _
url: data.url,
message: data.message.replace(/(\r?\n)+/gm, '\n') // swap multiple new lines with one
.replace(/^/gm, ' ') // add two spaces to the start of each line
.replace(/([^\s]+@\d+\.\d+\.\d+.*)/g, '`$1`'), // wrap package@version in backticks
prs: data.associatedPullRequests.nodes.filter((pull) => pull.merged),
credit: data.authors.nodes.map((author) => {
if (author.user && author.user.login) {
return {
name: `@${author.user.login}`,
url: author.user.url,
}
}
// if the commit used an email that's not associated with a github account
// then the user field will be empty, so we fall back to using the committer's
// name and email as specified by git
return {
name: author.name,
url: `mailto:${author.email}`,
}
}),
}
printCommit(commit)
}
}
main()
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