Files
opencode/nix/scripts/canonicalize-node-modules.ts

102 lines
2.7 KiB
TypeScript

import { lstat, mkdir, readdir, rm, symlink } from "fs/promises"
import { join, relative } from "path"
type Entry = {
dir: string
version: string
}
async function isDirectory(path: string) {
try {
const info = await lstat(path)
return info.isDirectory()
} catch {
return false
}
}
const isValidSemver = (v: string) => Bun.semver.satisfies(v, "x.x.x")
const root = process.cwd()
const bunRoot = join(root, "node_modules/.bun")
const linkRoot = join(bunRoot, "node_modules")
const directories = (await readdir(bunRoot)).sort()
const versions = new Map<string, Entry[]>()
for (const entry of directories) {
const full = join(bunRoot, entry)
if (!(await isDirectory(full))) {
continue
}
const parsed = parseEntry(entry)
if (!parsed) {
continue
}
const list = versions.get(parsed.name) ?? []
list.push({ dir: full, version: parsed.version })
versions.set(parsed.name, list)
}
const selections = new Map<string, Entry>()
for (const [slug, list] of versions) {
list.sort((a, b) => {
const aValid = isValidSemver(a.version)
const bValid = isValidSemver(b.version)
if (aValid && bValid) return -Bun.semver.order(a.version, b.version)
if (aValid) return -1
if (bValid) return 1
return b.version.localeCompare(a.version)
})
const first = list[0]
if (first) selections.set(slug, first)
}
await rm(linkRoot, { recursive: true, force: true })
await mkdir(linkRoot, { recursive: true })
const rewrites: string[] = []
for (const [slug, entry] of Array.from(selections.entries()).sort((a, b) => a[0].localeCompare(b[0]))) {
const parts = slug.split("/")
const leaf = parts.pop()
if (!leaf) {
continue
}
const parent = join(linkRoot, ...parts)
await mkdir(parent, { recursive: true })
const linkPath = join(parent, leaf)
const desired = join(entry.dir, "node_modules", slug)
if (!(await isDirectory(desired))) {
continue
}
const relativeTarget = relative(parent, desired)
const resolved = relativeTarget.length === 0 ? "." : relativeTarget
await rm(linkPath, { recursive: true, force: true })
await symlink(resolved, linkPath)
rewrites.push(slug + " -> " + resolved)
}
rewrites.sort()
console.log("[canonicalize-node-modules] rebuilt", rewrites.length, "links")
for (const line of rewrites.slice(0, 20)) {
console.log(" ", line)
}
if (rewrites.length > 20) {
console.log(" ...")
}
function parseEntry(label: string) {
const marker = label.startsWith("@") ? label.indexOf("@", 1) : label.indexOf("@")
if (marker <= 0) {
return null
}
const name = label.slice(0, marker).replace(/\+/g, "/")
const version = label.slice(marker + 1)
if (!name || !version) {
return null
}
return { name, version }
}