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fix: writeAsarFile — use close event instead of end
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| { | ||
| "lerna": "2.0.0-beta.37", | ||
| "lerna": "2.0.0-beta.38", | ||
| "packages": [ | ||
| "packages/*" | ||
| ], | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| import { createFromBuffer } from "chromium-pickle-js" | ||
| import { close, open, read, readFile, Stats } from "fs-extra-p" | ||
| import * as path from "path" | ||
| const UINT64 = require("cuint").UINT64 | ||
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|
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| export class Node { | ||
| // we don't use Map because later it will be stringified | ||
| files?: { [key: string]: Node } | ||
|
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| unpacked?: boolean | ||
|
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| size: number | ||
| offset: number | ||
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| executable?: boolean | ||
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| link?: string | ||
| } | ||
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| export class AsarFilesystem { | ||
| private offset = UINT64(0) | ||
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| constructor (readonly src: string, readonly header = new Node(), readonly headerSize: number = -1) { | ||
| if (this.header.files == null) { | ||
| this.header.files = {} | ||
| } | ||
| } | ||
|
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| searchNodeFromDirectory(p: string): Node { | ||
| let node = this.header | ||
| for (const dir of p.split(path.sep)) { | ||
| if (dir !== ".") { | ||
| node = node.files![dir]! | ||
| } | ||
| } | ||
| return node | ||
| } | ||
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| getOrCreateNode(p: string): Node { | ||
| p = path.relative(this.src, p) | ||
| if (p == null || p.length === 0) { | ||
| return this.header | ||
| } | ||
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| const name = path.basename(p) | ||
| const dirNode = this.searchNodeFromDirectory(path.dirname(p)) | ||
| if (dirNode.files == null) { | ||
| dirNode.files = {} | ||
| } | ||
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| let result = dirNode.files[name] | ||
| if (result == null) { | ||
| result = new Node() | ||
| dirNode.files[name] = result | ||
| } | ||
| return result | ||
| } | ||
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| insertDirectory(p: string, unpacked: boolean = false) { | ||
| const node = this.getOrCreateNode(p) | ||
| node.files = {} | ||
| if (unpacked) { | ||
| node.unpacked = unpacked | ||
| } | ||
| return node.files | ||
| } | ||
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| insertFileNode(node: Node, stat: Stats, file: string) { | ||
| if (node.size > 4294967295) { | ||
| throw new Error(`${file}: file size can not be larger than 4.2GB`) | ||
| } | ||
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| node.offset = this.offset.toString() | ||
| if (process.platform !== "win32" && (stat.mode & 0o100)) { | ||
| node.executable = true | ||
| } | ||
| this.offset.add(UINT64(node.size)) | ||
| } | ||
|
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| // listFiles() { | ||
| // const files: Array<string> = [] | ||
| // const fillFilesFromHeader = (p: string, json: Node) => { | ||
| // if (json.files == null) { | ||
| // return | ||
| // } | ||
| // | ||
| // for (const f in json.files) { | ||
| // const fullPath = path.join(p, f) | ||
| // files.push(fullPath) | ||
| // fillFilesFromHeader(fullPath, json.files[f]!) | ||
| // } | ||
| // } | ||
| // | ||
| // fillFilesFromHeader("/", this.header) | ||
| // return files | ||
| // } | ||
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| getNode(p: string) { | ||
| const node = this.searchNodeFromDirectory(path.dirname(p)) | ||
| return node.files![path.basename(p)] | ||
| } | ||
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| getFile(p: string, followLinks: boolean = true): Node { | ||
| const info = this.getNode(p)! | ||
| // if followLinks is false we don't resolve symlinks | ||
| return followLinks && info.link != null ? this.getFile(info.link) : info | ||
| } | ||
|
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| async readJson(file: string): Promise<Buffer> { | ||
| return JSON.parse((await this.readFile(file)).toString()) | ||
| } | ||
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| async readFile(file: string): Promise<Buffer> { | ||
| return await readFileFromAsar(this, file, this.getFile(file)) | ||
| } | ||
| } | ||
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| export async function readAsar(archive: string): Promise<AsarFilesystem> { | ||
| const fd = await open(archive, "r") | ||
| let size | ||
| let headerBuf | ||
| try { | ||
| const sizeBuf = new Buffer(8) | ||
| if (await read(fd, sizeBuf, 0, 8, <any>null) !== 8) { | ||
| throw new Error("Unable to read header size") | ||
| } | ||
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| const sizePickle = createFromBuffer(sizeBuf) | ||
| size = sizePickle.createIterator().readUInt32() | ||
| headerBuf = new Buffer(size) | ||
| if (await read(fd, headerBuf, 0, size, <any>null) !== size) { | ||
| throw new Error("Unable to read header") | ||
| } | ||
| } | ||
| finally { | ||
| await close(fd) | ||
| } | ||
|
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| const headerPickle = createFromBuffer(headerBuf!) | ||
| const header = headerPickle.createIterator().readString() | ||
| return new AsarFilesystem(archive, JSON.parse(header), size) | ||
| } | ||
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| export async function readAsarJson(archive: string, file: string): Promise<Buffer> { | ||
| const fs = await readAsar(archive) | ||
| return await fs.readJson(file) | ||
| } | ||
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| async function readFileFromAsar(filesystem: AsarFilesystem, filename: string, info: Node): Promise<Buffer> { | ||
| let buffer = new Buffer(info.size) | ||
| if (info.size <= 0) { | ||
| return buffer | ||
| } | ||
|
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| if (info.unpacked) { | ||
| return await readFile(path.join(`${filesystem.src}.unpacked`, filename)) | ||
| } | ||
|
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| const fd = await open(filesystem.src, "r") | ||
| try { | ||
| const offset = 8 + filesystem.headerSize + parseInt(<any>info.offset) | ||
| await read(fd, buffer, 0, info.size, offset) | ||
| } | ||
| finally { | ||
| await close(fd) | ||
| } | ||
| return buffer | ||
| } |
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