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source dump of claude code
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13 kB · 406 lines
TypeScript
at main
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import { randomBytes } from 'crypto'import { chmod, lstat, readdir, readFile, rename, rm, stat, writeFile,} from 'fs/promises'import { tmpdir } from 'os'import { basename, dirname, join } from 'path'import { logForDebugging } from '../debug.js'import { parseZipModes, unzipFile } from '../dxt/zip.js'import { isEnvTruthy } from '../envUtils.js'import { getFsImplementation } from '../fsOperations.js'import { expandTilde } from '../permissions/pathValidation.js'import type { MarketplaceSource } from './schemas.js'
/** * Check if the plugin zip cache mode is enabled. */export function isPluginZipCacheEnabled(): boolean { return isEnvTruthy(process.env.CLAUDE_CODE_PLUGIN_USE_ZIP_CACHE)}
/** * Get the path to the zip cache directory. * Requires CLAUDE_CODE_PLUGIN_CACHE_DIR to be set. * Returns undefined if zip cache is not enabled. */export function getPluginZipCachePath(): string | undefined { if (!isPluginZipCacheEnabled()) { return undefined } const dir = process.env.CLAUDE_CODE_PLUGIN_CACHE_DIR return dir ? expandTilde(dir) : undefined}
/** * Get the path to known_marketplaces.json in the zip cache. */export function getZipCacheKnownMarketplacesPath(): string { const cachePath = getPluginZipCachePath() if (!cachePath) { throw new Error('Plugin zip cache is not enabled') } return join(cachePath, 'known_marketplaces.json')}
/** * Get the path to installed_plugins.json in the zip cache. */export function getZipCacheInstalledPluginsPath(): string { const cachePath = getPluginZipCachePath() if (!cachePath) { throw new Error('Plugin zip cache is not enabled') } return join(cachePath, 'installed_plugins.json')}
/** * Get the marketplaces directory within the zip cache. */export function getZipCacheMarketplacesDir(): string { const cachePath = getPluginZipCachePath() if (!cachePath) { throw new Error('Plugin zip cache is not enabled') } return join(cachePath, 'marketplaces')}
/** * Get the plugins directory within the zip cache. */export function getZipCachePluginsDir(): string { const cachePath = getPluginZipCachePath() if (!cachePath) { throw new Error('Plugin zip cache is not enabled') } return join(cachePath, 'plugins')}
// Session plugin cache: a temp directory on local disk (NOT in the mounted zip cache)// that holds extracted plugins for the duration of the session.let sessionPluginCachePath: string | null = nulllet sessionPluginCachePromise: Promise<string> | null = null
/** * Get or create the session plugin cache directory. * This is a temp directory on local disk where plugins are extracted for the session. */export async function getSessionPluginCachePath(): Promise<string> { if (sessionPluginCachePath) { return sessionPluginCachePath } if (!sessionPluginCachePromise) { sessionPluginCachePromise = (async () => { const suffix = randomBytes(8).toString('hex') const dir = join(tmpdir(), `claude-plugin-session-${suffix}`) await getFsImplementation().mkdir(dir) sessionPluginCachePath = dir logForDebugging(`Created session plugin cache at ${dir}`) return dir })() } return sessionPluginCachePromise}
/** * Clean up the session plugin cache directory. * Should be called when the session ends. */export async function cleanupSessionPluginCache(): Promise<void> { if (!sessionPluginCachePath) { return } try { await rm(sessionPluginCachePath, { recursive: true, force: true }) logForDebugging( `Cleaned up session plugin cache at ${sessionPluginCachePath}`, ) } catch (error) { logForDebugging(`Failed to clean up session plugin cache: ${error}`) } finally { sessionPluginCachePath = null sessionPluginCachePromise = null }}
/** * Reset the session plugin cache path (for testing). */export function resetSessionPluginCache(): void { sessionPluginCachePath = null sessionPluginCachePromise = null}
/** * Write data to a file in the zip cache atomically. * Writes to a temp file in the same directory, then renames. */export async function atomicWriteToZipCache( targetPath: string, data: string | Uint8Array,): Promise<void> { const dir = dirname(targetPath) await getFsImplementation().mkdir(dir)
const tmpName = `.${basename(targetPath)}.tmp.${randomBytes(4).toString('hex')}` const tmpPath = join(dir, tmpName)
try { if (typeof data === 'string') { await writeFile(tmpPath, data, { encoding: 'utf-8' }) } else { await writeFile(tmpPath, data) } await rename(tmpPath, targetPath) } catch (error) { // Clean up tmp file on failure try { await rm(tmpPath, { force: true }) } catch { // ignore cleanup errors } throw error }}
// fflate's ZippableFile tuple form: [data, opts]. Using the tuple lets us// store {os, attrs} so parseZipModes can recover exec bits on extraction.type ZipEntry = [Uint8Array, { os: number; attrs: number }]
/** * Create a ZIP archive from a directory. * Resolves symlinks to actual file contents (replaces symlinks with real data). * Stores Unix mode bits in external_attr so extractZipToDirectory can restore * +x — otherwise the round-trip (git clone → zip → extract) loses exec bits. * * @param sourceDir - Directory to zip * @returns ZIP file as Uint8Array */export async function createZipFromDirectory( sourceDir: string,): Promise<Uint8Array> { const files: Record<string, ZipEntry> = {} const visited = new Set<string>() await collectFilesForZip(sourceDir, '', files, visited)
const { zipSync } = await import('fflate') const zipData = zipSync(files, { level: 6 }) logForDebugging( `Created ZIP from ${sourceDir}: ${Object.keys(files).length} files, ${zipData.length} bytes`, ) return zipData}
/** * Recursively collect files from a directory for zipping. * Uses lstat to detect symlinks and tracks visited inodes for cycle detection. */async function collectFilesForZip( baseDir: string, relativePath: string, files: Record<string, ZipEntry>, visited: Set<string>,): Promise<void> { const currentDir = relativePath ? join(baseDir, relativePath) : baseDir let entries: string[] try { entries = await readdir(currentDir) } catch { return }
// Track visited directories by dev+ino to detect symlink cycles. // bigint: true is required — on Windows NTFS, the file index packs a 16-bit // sequence number into the high bits. Once that sequence exceeds ~32 (very // common on a busy CI runner that churns through temp files), the value // exceeds Number.MAX_SAFE_INTEGER and two adjacent directories round to the // same JS number, causing subdirs to be silently skipped as "cycles". This // broke the round-trip test on Windows CI when sharding shuffled which tests // ran first and pushed MFT sequence numbers over the precision cliff. // See also: markdownConfigLoader.ts getFileIdentity, anthropics/claude-code#13893 try { const dirStat = await stat(currentDir, { bigint: true }) // ReFS (Dev Drive), NFS, some FUSE mounts report dev=0 and ino=0 for // everything. Fail open: skip cycle detection rather than skip the // directory. We already skip symlinked directories unconditionally below, // so the only cycle left here is a bind mount, which we accept. if (dirStat.dev !== 0n || dirStat.ino !== 0n) { const key = `${dirStat.dev}:${dirStat.ino}` if (visited.has(key)) { logForDebugging(`Skipping symlink cycle at ${currentDir}`) return } visited.add(key) } } catch { return }
for (const entry of entries) { // Skip hidden files that are git-related if (entry === '.git') { continue }
const fullPath = join(currentDir, entry) const relPath = relativePath ? `${relativePath}/${entry}` : entry
let fileStat try { fileStat = await lstat(fullPath) } catch { continue }
// Skip symlinked directories (follow symlinked files) if (fileStat.isSymbolicLink()) { try { const targetStat = await stat(fullPath) if (targetStat.isDirectory()) { continue } // Symlinked file — read its contents below fileStat = targetStat } catch { continue // broken symlink } }
if (fileStat.isDirectory()) { await collectFilesForZip(baseDir, relPath, files, visited) } else if (fileStat.isFile()) { try { const content = await readFile(fullPath) // os=3 (Unix) + st_mode in high 16 bits of external_attr — this is // what parseZipModes reads back on extraction. fileStat is already // in hand from the lstat/stat above, so no extra syscall. files[relPath] = [ new Uint8Array(content), { os: 3, attrs: (fileStat.mode & 0xffff) << 16 }, ] } catch (error) { logForDebugging(`Failed to read file for zip: ${relPath}: ${error}`) } } }}
/** * Extract a ZIP file to a target directory. * * @param zipPath - Path to the ZIP file * @param targetDir - Directory to extract into */export async function extractZipToDirectory( zipPath: string, targetDir: string,): Promise<void> { const zipBuf = await getFsImplementation().readFileBytes(zipPath) const files = await unzipFile(zipBuf) // fflate doesn't surface external_attr — parse the central directory so // exec bits survive extraction (hooks/scripts need +x to run via `sh -c`). const modes = parseZipModes(zipBuf)
await getFsImplementation().mkdir(targetDir)
for (const [relPath, data] of Object.entries(files)) { // Skip directory entries (trailing slash) if (relPath.endsWith('/')) { await getFsImplementation().mkdir(join(targetDir, relPath)) continue }
const fullPath = join(targetDir, relPath) await getFsImplementation().mkdir(dirname(fullPath)) await writeFile(fullPath, data) const mode = modes[relPath] if (mode && mode & 0o111) { // Swallow EPERM/ENOTSUP (NFS root_squash, some FUSE mounts) — losing +x // is the pre-PR behavior and better than aborting mid-extraction. await chmod(fullPath, mode & 0o777).catch(() => {}) } }
logForDebugging( `Extracted ZIP to ${targetDir}: ${Object.keys(files).length} entries`, )}
/** * Convert a plugin directory to a ZIP in-place: zip → atomic write → delete dir. * Both call sites (cacheAndRegisterPlugin, copyPluginToVersionedCache) need the * same sequence; getting it wrong (non-atomic write, forgetting rm) corrupts cache. */export async function convertDirectoryToZipInPlace( dirPath: string, zipPath: string,): Promise<void> { const zipData = await createZipFromDirectory(dirPath) await atomicWriteToZipCache(zipPath, zipData) await rm(dirPath, { recursive: true, force: true })}
/** * Get the relative path for a marketplace JSON file within the zip cache. * Format: marketplaces/{marketplace-name}.json */export function getMarketplaceJsonRelativePath( marketplaceName: string,): string { const sanitized = marketplaceName.replace(/[^a-zA-Z0-9\-_]/g, '-') return join('marketplaces', `${sanitized}.json`)}
/** * Check if a marketplace source type is supported by zip cache mode. * * Supported sources write to `join(cacheDir, name)` — syncMarketplacesToZipCache * reads marketplace.json from that installLocation, source-type-agnostic. * - github/git/url: clone to temp, rename into cacheDir * - settings: write synthetic marketplace.json directly to cacheDir (no fetch) * * Excluded: file/directory (installLocation is the user's path OUTSIDE cacheDir — * nonsensical in ephemeral containers), npm (node_modules bloat on Filestore mount). */export function isMarketplaceSourceSupportedByZipCache( source: MarketplaceSource,): boolean { return ['github', 'git', 'url', 'settings'].includes(source.source)}