mirror of
https://github.com/anomalyco/opencode.git
synced 2026-05-22 03:45:23 +00:00
306 lines
10 KiB
TypeScript
306 lines
10 KiB
TypeScript
#!/usr/bin/env bun
|
||
/**
|
||
* Unwrap a TypeScript `export namespace` into flat exports + barrel.
|
||
*
|
||
* Usage:
|
||
* bun script/unwrap-namespace.ts src/bus/index.ts
|
||
* bun script/unwrap-namespace.ts src/bus/index.ts --dry-run
|
||
* bun script/unwrap-namespace.ts src/pty/index.ts --name service # avoid collision with pty.ts
|
||
*
|
||
* What it does:
|
||
* 1. Reads the file and finds the `export namespace Foo { ... }` block
|
||
* (uses ast-grep for accurate AST-based boundary detection)
|
||
* 2. Removes the namespace wrapper and dedents the body
|
||
* 3. Fixes self-references (e.g. Config.PermissionAction → PermissionAction)
|
||
* 4. If the file is index.ts, renames it to <lowercase-name>.ts
|
||
* 5. Creates/updates index.ts with `export * as Foo from "./<file>"`
|
||
* 6. Rewrites import paths across src/, test/, and script/
|
||
* 7. Fixes sibling imports within the same directory
|
||
*
|
||
* Requires: ast-grep (`brew install ast-grep` or `cargo install ast-grep`)
|
||
*/
|
||
|
||
import path from "path"
|
||
import fs from "fs"
|
||
|
||
const args = process.argv.slice(2)
|
||
const dryRun = args.includes("--dry-run")
|
||
const nameFlag = args.find((a, i) => args[i - 1] === "--name")
|
||
const filePath = args.find((a) => !a.startsWith("--") && args[args.indexOf(a) - 1] !== "--name")
|
||
|
||
if (!filePath) {
|
||
console.error("Usage: bun script/unwrap-namespace.ts <file> [--dry-run] [--name <impl-name>]")
|
||
process.exit(1)
|
||
}
|
||
|
||
const absPath = path.resolve(filePath)
|
||
if (!fs.existsSync(absPath)) {
|
||
console.error(`File not found: ${absPath}`)
|
||
process.exit(1)
|
||
}
|
||
|
||
const src = fs.readFileSync(absPath, "utf-8")
|
||
const lines = src.split("\n")
|
||
|
||
// Use ast-grep to find the namespace boundaries accurately.
|
||
// This avoids false matches from braces in strings, templates, comments, etc.
|
||
const astResult = Bun.spawnSync(
|
||
["ast-grep", "run", "--pattern", "export namespace $NAME { $$$BODY }", "--lang", "typescript", "--json", absPath],
|
||
{ stdout: "pipe", stderr: "pipe" },
|
||
)
|
||
|
||
if (astResult.exitCode !== 0) {
|
||
console.error("ast-grep failed:", astResult.stderr.toString())
|
||
process.exit(1)
|
||
}
|
||
|
||
const matches = JSON.parse(astResult.stdout.toString()) as Array<{
|
||
text: string
|
||
range: { start: { line: number; column: number }; end: { line: number; column: number } }
|
||
metaVariables: { single: Record<string, { text: string }>; multi: Record<string, Array<{ text: string }>> }
|
||
}>
|
||
|
||
if (matches.length === 0) {
|
||
console.error("No `export namespace Foo { ... }` found in file")
|
||
process.exit(1)
|
||
}
|
||
|
||
if (matches.length > 1) {
|
||
console.error(`Found ${matches.length} namespaces — this script handles one at a time`)
|
||
console.error("Namespaces found:")
|
||
for (const m of matches) console.error(` ${m.metaVariables.single.NAME.text} (line ${m.range.start.line + 1})`)
|
||
process.exit(1)
|
||
}
|
||
|
||
const match = matches[0]
|
||
const nsName = match.metaVariables.single.NAME.text
|
||
const nsLine = match.range.start.line // 0-indexed
|
||
const closeLine = match.range.end.line // 0-indexed, the line with closing `}`
|
||
|
||
console.log(`Found: export namespace ${nsName} { ... }`)
|
||
console.log(` Lines ${nsLine + 1}–${closeLine + 1} (${closeLine - nsLine + 1} lines)`)
|
||
|
||
// Build the new file content:
|
||
// 1. Everything before the namespace declaration (imports, etc.)
|
||
// 2. The namespace body, dedented by one level (2 spaces)
|
||
// 3. Everything after the closing brace (rare, but possible)
|
||
const before = lines.slice(0, nsLine)
|
||
const body = lines.slice(nsLine + 1, closeLine)
|
||
const after = lines.slice(closeLine + 1)
|
||
|
||
// Dedent: remove exactly 2 leading spaces from each line
|
||
const dedented = body.map((line) => {
|
||
if (line === "") return ""
|
||
if (line.startsWith(" ")) return line.slice(2)
|
||
return line
|
||
})
|
||
|
||
let newContent = [...before, ...dedented, ...after].join("\n")
|
||
|
||
// --- Fix self-references ---
|
||
// After unwrapping, references like `Config.PermissionAction` inside the same file
|
||
// need to become just `PermissionAction`. Only fix code positions, not strings.
|
||
const exportedNames = new Set<string>()
|
||
const exportRegex = /export\s+(?:const|function|class|interface|type|enum|abstract\s+class)\s+(\w+)/g
|
||
for (const line of dedented) {
|
||
for (const m of line.matchAll(exportRegex)) exportedNames.add(m[1])
|
||
}
|
||
const reExportRegex = /export\s*\{\s*([^}]+)\}/g
|
||
for (const line of dedented) {
|
||
for (const m of line.matchAll(reExportRegex)) {
|
||
for (const name of m[1].split(",")) {
|
||
const trimmed = name
|
||
.trim()
|
||
.split(/\s+as\s+/)
|
||
.pop()!
|
||
.trim()
|
||
if (trimmed) exportedNames.add(trimmed)
|
||
}
|
||
}
|
||
}
|
||
|
||
let selfRefCount = 0
|
||
if (exportedNames.size > 0) {
|
||
const fixedLines = newContent.split("\n").map((line) => {
|
||
// Split line into string-literal and code segments to avoid replacing inside strings
|
||
const segments: Array<{ text: string; isString: boolean }> = []
|
||
let i = 0
|
||
let current = ""
|
||
let inString: string | null = null
|
||
|
||
while (i < line.length) {
|
||
const ch = line[i]
|
||
if (inString) {
|
||
current += ch
|
||
if (ch === "\\" && i + 1 < line.length) {
|
||
current += line[i + 1]
|
||
i += 2
|
||
continue
|
||
}
|
||
if (ch === inString) {
|
||
segments.push({ text: current, isString: true })
|
||
current = ""
|
||
inString = null
|
||
}
|
||
i++
|
||
continue
|
||
}
|
||
if (ch === '"' || ch === "'" || ch === "`") {
|
||
if (current) segments.push({ text: current, isString: false })
|
||
current = ch
|
||
inString = ch
|
||
i++
|
||
continue
|
||
}
|
||
if (ch === "/" && i + 1 < line.length && line[i + 1] === "/") {
|
||
current += line.slice(i)
|
||
segments.push({ text: current, isString: true })
|
||
current = ""
|
||
i = line.length
|
||
continue
|
||
}
|
||
current += ch
|
||
i++
|
||
}
|
||
if (current) segments.push({ text: current, isString: !!inString })
|
||
|
||
return segments
|
||
.map((seg) => {
|
||
if (seg.isString) return seg.text
|
||
let result = seg.text
|
||
for (const name of exportedNames) {
|
||
const pattern = `${nsName}.${name}`
|
||
while (result.includes(pattern)) {
|
||
const idx = result.indexOf(pattern)
|
||
const charBefore = idx > 0 ? result[idx - 1] : " "
|
||
const charAfter = idx + pattern.length < result.length ? result[idx + pattern.length] : " "
|
||
if (/\w/.test(charBefore) || /\w/.test(charAfter)) break
|
||
result = result.slice(0, idx) + name + result.slice(idx + pattern.length)
|
||
selfRefCount++
|
||
}
|
||
}
|
||
return result
|
||
})
|
||
.join("")
|
||
})
|
||
newContent = fixedLines.join("\n")
|
||
}
|
||
|
||
// Figure out file naming
|
||
const dir = path.dirname(absPath)
|
||
const basename = path.basename(absPath, ".ts")
|
||
const isIndex = basename === "index"
|
||
const implName = nameFlag ?? (isIndex ? nsName.replace(/([a-z])([A-Z])/g, "$1-$2").toLowerCase() : basename)
|
||
const implFile = path.join(dir, `${implName}.ts`)
|
||
const indexFile = path.join(dir, "index.ts")
|
||
const barrelLine = `export * as ${nsName} from "./${implName}"\n`
|
||
|
||
console.log("")
|
||
if (isIndex) {
|
||
console.log(`Plan: rename ${basename}.ts → ${implName}.ts, create new index.ts barrel`)
|
||
} else {
|
||
console.log(`Plan: rewrite ${basename}.ts in place, create index.ts barrel`)
|
||
}
|
||
if (selfRefCount > 0) console.log(`Fixed ${selfRefCount} self-reference(s) (${nsName}.X → X)`)
|
||
console.log("")
|
||
|
||
if (dryRun) {
|
||
console.log("--- DRY RUN ---")
|
||
console.log("")
|
||
console.log(`=== ${implName}.ts (first 30 lines) ===`)
|
||
newContent
|
||
.split("\n")
|
||
.slice(0, 30)
|
||
.forEach((l, i) => console.log(` ${i + 1}: ${l}`))
|
||
console.log(" ...")
|
||
console.log("")
|
||
console.log(`=== index.ts ===`)
|
||
console.log(` ${barrelLine.trim()}`)
|
||
console.log("")
|
||
if (!isIndex) {
|
||
const relDir = path.relative(path.resolve("src"), dir)
|
||
console.log(`=== Import rewrites (would apply) ===`)
|
||
console.log(` ${relDir}/${basename}" → ${relDir}" across src/, test/, script/`)
|
||
} else {
|
||
console.log("No import rewrites needed (was index.ts)")
|
||
}
|
||
} else {
|
||
if (isIndex) {
|
||
fs.writeFileSync(implFile, newContent)
|
||
fs.writeFileSync(indexFile, barrelLine)
|
||
console.log(`Wrote ${implName}.ts (${newContent.split("\n").length} lines)`)
|
||
console.log(`Wrote index.ts (barrel)`)
|
||
} else {
|
||
fs.writeFileSync(absPath, newContent)
|
||
if (fs.existsSync(indexFile)) {
|
||
const existing = fs.readFileSync(indexFile, "utf-8")
|
||
if (!existing.includes(`export * as ${nsName}`)) {
|
||
fs.appendFileSync(indexFile, barrelLine)
|
||
console.log(`Appended to existing index.ts`)
|
||
} else {
|
||
console.log(`index.ts already has ${nsName} export`)
|
||
}
|
||
} else {
|
||
fs.writeFileSync(indexFile, barrelLine)
|
||
console.log(`Wrote index.ts (barrel)`)
|
||
}
|
||
console.log(`Rewrote ${basename}.ts (${newContent.split("\n").length} lines)`)
|
||
}
|
||
|
||
// --- Rewrite import paths across src/, test/, script/ ---
|
||
const relDir = path.relative(path.resolve("src"), dir)
|
||
if (!isIndex) {
|
||
const oldTail = `${relDir}/${basename}`
|
||
const searchDirs = ["src", "test", "script"].filter((d) => fs.existsSync(d))
|
||
const rgResult = Bun.spawnSync(["rg", "-l", `from.*${oldTail}"`, ...searchDirs], {
|
||
stdout: "pipe",
|
||
stderr: "pipe",
|
||
})
|
||
const filesToRewrite = rgResult.stdout
|
||
.toString()
|
||
.trim()
|
||
.split("\n")
|
||
.filter((f) => f.length > 0)
|
||
|
||
if (filesToRewrite.length > 0) {
|
||
console.log(`\nRewriting imports in ${filesToRewrite.length} file(s)...`)
|
||
for (const file of filesToRewrite) {
|
||
const content = fs.readFileSync(file, "utf-8")
|
||
fs.writeFileSync(file, content.replaceAll(`${oldTail}"`, `${relDir}"`))
|
||
}
|
||
console.log(` Done: ${oldTail}" → ${relDir}"`)
|
||
} else {
|
||
console.log("\nNo import rewrites needed")
|
||
}
|
||
} else {
|
||
console.log("\nNo import rewrites needed (was index.ts)")
|
||
}
|
||
|
||
// --- Fix sibling imports within the same directory ---
|
||
const siblingFiles = fs.readdirSync(dir).filter((f) => {
|
||
if (!f.endsWith(".ts")) return false
|
||
if (f === "index.ts" || f === `${implName}.ts`) return false
|
||
return true
|
||
})
|
||
|
||
let siblingFixCount = 0
|
||
for (const sibFile of siblingFiles) {
|
||
const sibPath = path.join(dir, sibFile)
|
||
const content = fs.readFileSync(sibPath, "utf-8")
|
||
const pattern = new RegExp(`from\\s+["']\\./${basename}["']`, "g")
|
||
if (pattern.test(content)) {
|
||
fs.writeFileSync(sibPath, content.replace(pattern, `from "."`))
|
||
siblingFixCount++
|
||
}
|
||
}
|
||
if (siblingFixCount > 0) {
|
||
console.log(`Fixed ${siblingFixCount} sibling import(s) in ${path.basename(dir)}/ (./${basename} → .)`)
|
||
}
|
||
}
|
||
|
||
console.log("")
|
||
console.log("=== Verify ===")
|
||
console.log("")
|
||
console.log("bunx --bun tsgo --noEmit # typecheck")
|
||
console.log("bun run test # run tests")
|