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getLatestTag.ts
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getLatestTag.ts
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import fetch from 'node-fetch'
import { getProxyAgent } from './getProxyAgent'
import { getDownloadUrl } from './util'
import { platforms } from '@prisma/get-platform'
import execa from 'execa'
import pMap from 'p-map'
import chalk from 'chalk'
export async function getLatestTag(): Promise<any> {
let branch = await getBranch()
if (
branch !== 'master' &&
!isPatchBranch(branch) &&
!branch.startsWith('integration/')
) {
branch = 'master'
}
// remove the "integration/" part
branch = branch.replace(/^integration\//, '')
// console.log({ branch }, 'after replace')
// first try to get the branch as it is
// if it doesn't have an equivalent in the engines repo
// default back to master
let commits = await getCommits(branch)
if (
(!commits || !Array.isArray(commits)) &&
branch !== 'master' &&
!isPatchBranch(branch)
) {
console.log(
`Overwriting branch "${branch}" with "master" as it's not a branch we have binaries for`,
)
branch = 'master'
commits = await getCommits(branch)
}
if (!Array.isArray(commits)) {
console.error(commits)
throw new Error(
`Could not fetch commits from github: ${JSON.stringify(
commits,
null,
2,
)}`,
)
}
return getFirstFinishedCommit(branch, commits)
}
export function getAllUrls(branch: string, commit: string): string[] {
const urls = []
const excludedPlatforms = [
'freebsd',
'arm',
'linux-nixos',
'openbsd',
'netbsd',
'freebsd11',
'freebsd12',
]
const relevantPlatforms = platforms.filter(
(p) => !excludedPlatforms.includes(p),
)
for (const platform of relevantPlatforms) {
for (const engine of [
'query-engine',
'introspection-engine',
'migration-engine',
'prisma-fmt',
]) {
for (const extension of [
'.gz',
'.gz.sha256',
'.gz.sig',
'.sig',
'.sha256',
]) {
const downloadUrl = getDownloadUrl(
branch,
commit,
platform,
engine,
extension,
)
urls.push(downloadUrl)
}
}
}
return urls
}
async function getFirstFinishedCommit(
branch: string,
commits: string[],
): Promise<string> {
for (const commit of commits) {
const urls = getAllUrls(branch, commit)
// TODO: potential to speed things up
// We don't always need to wait for the last commit
const exist = await pMap(urls, urlExists, { concurrency: 10 })
const hasMissing = exist.some((e) => !e)
if (!hasMissing) {
return commit
} else {
const missing = urls.filter((_, i) => !exist[i])
// if all are missing, we don't have to talk about it
// it might just be a broken commit or just still building
if (missing.length !== urls.length) {
console.log(
`${chalk.blueBright(
'info',
)} The engine commit ${commit} is not yet done. We're skipping it as we're in dev. Missing urls: ${
missing.length
}`,
)
}
}
}
}
export async function urlExists(url) {
try {
const res = await fetch(url, {
method: 'HEAD',
agent: getProxyAgent(url) as any,
})
const headers = fromEntries(res.headers.entries())
if (res.status > 200) {
// console.error(res, headers)
}
if (parseInt(headers['content-length']) > 0) {
return res.status < 300
}
} catch (e) {
//
// console.error(e)
}
return false
}
function fromEntries<T>(
entries: IterableIterator<[string, T]>,
): Record<string, T> {
const result = {}
for (const [key, value] of entries) {
result[key] = value
}
return result
}
async function getBranch() {
if (process.env.NODE_ENV !== 'test') {
if (process.env.PATCH_BRANCH) {
return process.env.PATCH_BRANCH
}
if (process.env.BUILDKITE_BRANCH) {
return process.env.BUILDKITE_BRANCH
}
if (process.env.GITHUB_CONTEXT) {
const context = JSON.parse(process.env.GITHUB_CONTEXT)
return context.head_ref
}
}
// Need to be handled
// for example it's used in https://github.com/prisma/binary-tester and the environment
// is not a git repository so it fails
try {
const result = await execa.command('git rev-parse --abbrev-ref HEAD', {
shell: true,
stdio: 'pipe',
})
return result.stdout
} catch (e) {
console.error(e)
}
return
}
// TODO: Adjust this for stable release
function isPatchBranch(version: string): boolean {
return /^2\.(\d+)\.x/.test(version)
}
async function getCommits(branch: string): Promise<string[] | object> {
const url = `https://github-cache.prisma.workers.dev/repos/prisma/prisma-engines/commits?sha=${branch}`
const result = await fetch(url, {
agent: getProxyAgent(url) as any,
headers: {
Authorization: process.env.GITHUB_TOKEN
? `token ${process.env.GITHUB_TOKEN}`
: undefined,
},
} as any).then((res) => res.json())
if (!Array.isArray(result)) {
return result
}
const commits = result.map((r) => r.sha)
return commits
}