diff options
Diffstat (limited to 'sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js')
| -rw-r--r-- | sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js | 525 |
1 files changed, 0 insertions, 525 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js b/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js deleted file mode 100644 index 3702f2ae..00000000 --- a/sandbox/testAppNevena/Front/node_modules/tar/lib/write-entry.js +++ /dev/null @@ -1,525 +0,0 @@ -'use strict' -const MiniPass = require('minipass') -const Pax = require('./pax.js') -const Header = require('./header.js') -const fs = require('fs') -const path = require('path') -const normPath = require('./normalize-windows-path.js') -const stripSlash = require('./strip-trailing-slashes.js') - -const prefixPath = (path, prefix) => { - if (!prefix) - return normPath(path) - path = normPath(path).replace(/^\.(\/|$)/, '') - return stripSlash(prefix) + '/' + path -} - -const maxReadSize = 16 * 1024 * 1024 -const PROCESS = Symbol('process') -const FILE = Symbol('file') -const DIRECTORY = Symbol('directory') -const SYMLINK = Symbol('symlink') -const HARDLINK = Symbol('hardlink') -const HEADER = Symbol('header') -const READ = Symbol('read') -const LSTAT = Symbol('lstat') -const ONLSTAT = Symbol('onlstat') -const ONREAD = Symbol('onread') -const ONREADLINK = Symbol('onreadlink') -const OPENFILE = Symbol('openfile') -const ONOPENFILE = Symbol('onopenfile') -const CLOSE = Symbol('close') -const MODE = Symbol('mode') -const AWAITDRAIN = Symbol('awaitDrain') -const ONDRAIN = Symbol('ondrain') -const PREFIX = Symbol('prefix') -const HAD_ERROR = Symbol('hadError') -const warner = require('./warn-mixin.js') -const winchars = require('./winchars.js') -const stripAbsolutePath = require('./strip-absolute-path.js') - -const modeFix = require('./mode-fix.js') - -const WriteEntry = warner(class WriteEntry extends MiniPass { - constructor (p, opt) { - opt = opt || {} - super(opt) - if (typeof p !== 'string') - throw new TypeError('path is required') - this.path = normPath(p) - // suppress atime, ctime, uid, gid, uname, gname - this.portable = !!opt.portable - // until node has builtin pwnam functions, this'll have to do - this.myuid = process.getuid && process.getuid() || 0 - this.myuser = process.env.USER || '' - this.maxReadSize = opt.maxReadSize || maxReadSize - this.linkCache = opt.linkCache || new Map() - this.statCache = opt.statCache || new Map() - this.preservePaths = !!opt.preservePaths - this.cwd = normPath(opt.cwd || process.cwd()) - this.strict = !!opt.strict - this.noPax = !!opt.noPax - this.noMtime = !!opt.noMtime - this.mtime = opt.mtime || null - this.prefix = opt.prefix ? normPath(opt.prefix) : null - - this.fd = null - this.blockLen = null - this.blockRemain = null - this.buf = null - this.offset = null - this.length = null - this.pos = null - this.remain = null - - if (typeof opt.onwarn === 'function') - this.on('warn', opt.onwarn) - - let pathWarn = false - if (!this.preservePaths) { - const [root, stripped] = stripAbsolutePath(this.path) - if (root) { - this.path = stripped - pathWarn = root - } - } - - this.win32 = !!opt.win32 || process.platform === 'win32' - if (this.win32) { - // force the \ to / normalization, since we might not *actually* - // be on windows, but want \ to be considered a path separator. - this.path = winchars.decode(this.path.replace(/\\/g, '/')) - p = p.replace(/\\/g, '/') - } - - this.absolute = normPath(opt.absolute || path.resolve(this.cwd, p)) - - if (this.path === '') - this.path = './' - - if (pathWarn) { - this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, { - entry: this, - path: pathWarn + this.path, - }) - } - - if (this.statCache.has(this.absolute)) - this[ONLSTAT](this.statCache.get(this.absolute)) - else - this[LSTAT]() - } - - emit (ev, ...data) { - if (ev === 'error') - this[HAD_ERROR] = true - return super.emit(ev, ...data) - } - - [LSTAT] () { - fs.lstat(this.absolute, (er, stat) => { - if (er) - return this.emit('error', er) - this[ONLSTAT](stat) - }) - } - - [ONLSTAT] (stat) { - this.statCache.set(this.absolute, stat) - this.stat = stat - if (!stat.isFile()) - stat.size = 0 - this.type = getType(stat) - this.emit('stat', stat) - this[PROCESS]() - } - - [PROCESS] () { - switch (this.type) { - case 'File': return this[FILE]() - case 'Directory': return this[DIRECTORY]() - case 'SymbolicLink': return this[SYMLINK]() - // unsupported types are ignored. - default: return this.end() - } - } - - [MODE] (mode) { - return modeFix(mode, this.type === 'Directory', this.portable) - } - - [PREFIX] (path) { - return prefixPath(path, this.prefix) - } - - [HEADER] () { - if (this.type === 'Directory' && this.portable) - this.noMtime = true - - this.header = new Header({ - path: this[PREFIX](this.path), - // only apply the prefix to hard links. - linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) - : this.linkpath, - // only the permissions and setuid/setgid/sticky bitflags - // not the higher-order bits that specify file type - mode: this[MODE](this.stat.mode), - uid: this.portable ? null : this.stat.uid, - gid: this.portable ? null : this.stat.gid, - size: this.stat.size, - mtime: this.noMtime ? null : this.mtime || this.stat.mtime, - type: this.type, - uname: this.portable ? null : - this.stat.uid === this.myuid ? this.myuser : '', - atime: this.portable ? null : this.stat.atime, - ctime: this.portable ? null : this.stat.ctime, - }) - - if (this.header.encode() && !this.noPax) { - super.write(new Pax({ - atime: this.portable ? null : this.header.atime, - ctime: this.portable ? null : this.header.ctime, - gid: this.portable ? null : this.header.gid, - mtime: this.noMtime ? null : this.mtime || this.header.mtime, - path: this[PREFIX](this.path), - linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) - : this.linkpath, - size: this.header.size, - uid: this.portable ? null : this.header.uid, - uname: this.portable ? null : this.header.uname, - dev: this.portable ? null : this.stat.dev, - ino: this.portable ? null : this.stat.ino, - nlink: this.portable ? null : this.stat.nlink, - }).encode()) - } - super.write(this.header.block) - } - - [DIRECTORY] () { - if (this.path.substr(-1) !== '/') - this.path += '/' - this.stat.size = 0 - this[HEADER]() - this.end() - } - - [SYMLINK] () { - fs.readlink(this.absolute, (er, linkpath) => { - if (er) - return this.emit('error', er) - this[ONREADLINK](linkpath) - }) - } - - [ONREADLINK] (linkpath) { - this.linkpath = normPath(linkpath) - this[HEADER]() - this.end() - } - - [HARDLINK] (linkpath) { - this.type = 'Link' - this.linkpath = normPath(path.relative(this.cwd, linkpath)) - this.stat.size = 0 - this[HEADER]() - this.end() - } - - [FILE] () { - if (this.stat.nlink > 1) { - const linkKey = this.stat.dev + ':' + this.stat.ino - if (this.linkCache.has(linkKey)) { - const linkpath = this.linkCache.get(linkKey) - if (linkpath.indexOf(this.cwd) === 0) - return this[HARDLINK](linkpath) - } - this.linkCache.set(linkKey, this.absolute) - } - - this[HEADER]() - if (this.stat.size === 0) - return this.end() - - this[OPENFILE]() - } - - [OPENFILE] () { - fs.open(this.absolute, 'r', (er, fd) => { - if (er) - return this.emit('error', er) - this[ONOPENFILE](fd) - }) - } - - [ONOPENFILE] (fd) { - this.fd = fd - if (this[HAD_ERROR]) - return this[CLOSE]() - - this.blockLen = 512 * Math.ceil(this.stat.size / 512) - this.blockRemain = this.blockLen - const bufLen = Math.min(this.blockLen, this.maxReadSize) - this.buf = Buffer.allocUnsafe(bufLen) - this.offset = 0 - this.pos = 0 - this.remain = this.stat.size - this.length = this.buf.length - this[READ]() - } - - [READ] () { - const { fd, buf, offset, length, pos } = this - fs.read(fd, buf, offset, length, pos, (er, bytesRead) => { - if (er) { - // ignoring the error from close(2) is a bad practice, but at - // this point we already have an error, don't need another one - return this[CLOSE](() => this.emit('error', er)) - } - this[ONREAD](bytesRead) - }) - } - - [CLOSE] (cb) { - fs.close(this.fd, cb) - } - - [ONREAD] (bytesRead) { - if (bytesRead <= 0 && this.remain > 0) { - const er = new Error('encountered unexpected EOF') - er.path = this.absolute - er.syscall = 'read' - er.code = 'EOF' - return this[CLOSE](() => this.emit('error', er)) - } - - if (bytesRead > this.remain) { - const er = new Error('did not encounter expected EOF') - er.path = this.absolute - er.syscall = 'read' - er.code = 'EOF' - return this[CLOSE](() => this.emit('error', er)) - } - - // null out the rest of the buffer, if we could fit the block padding - // at the end of this loop, we've incremented bytesRead and this.remain - // to be incremented up to the blockRemain level, as if we had expected - // to get a null-padded file, and read it until the end. then we will - // decrement both remain and blockRemain by bytesRead, and know that we - // reached the expected EOF, without any null buffer to append. - if (bytesRead === this.remain) { - for (let i = bytesRead; i < this.length && bytesRead < this.blockRemain; i++) { - this.buf[i + this.offset] = 0 - bytesRead++ - this.remain++ - } - } - - const writeBuf = this.offset === 0 && bytesRead === this.buf.length ? - this.buf : this.buf.slice(this.offset, this.offset + bytesRead) - - const flushed = this.write(writeBuf) - if (!flushed) - this[AWAITDRAIN](() => this[ONDRAIN]()) - else - this[ONDRAIN]() - } - - [AWAITDRAIN] (cb) { - this.once('drain', cb) - } - - write (writeBuf) { - if (this.blockRemain < writeBuf.length) { - const er = new Error('writing more data than expected') - er.path = this.absolute - return this.emit('error', er) - } - this.remain -= writeBuf.length - this.blockRemain -= writeBuf.length - this.pos += writeBuf.length - this.offset += writeBuf.length - return super.write(writeBuf) - } - - [ONDRAIN] () { - if (!this.remain) { - if (this.blockRemain) - super.write(Buffer.alloc(this.blockRemain)) - return this[CLOSE](er => er ? this.emit('error', er) : this.end()) - } - - if (this.offset >= this.length) { - // if we only have a smaller bit left to read, alloc a smaller buffer - // otherwise, keep it the same length it was before. - this.buf = Buffer.allocUnsafe(Math.min(this.blockRemain, this.buf.length)) - this.offset = 0 - } - this.length = this.buf.length - this.offset - this[READ]() - } -}) - -class WriteEntrySync extends WriteEntry { - [LSTAT] () { - this[ONLSTAT](fs.lstatSync(this.absolute)) - } - - [SYMLINK] () { - this[ONREADLINK](fs.readlinkSync(this.absolute)) - } - - [OPENFILE] () { - this[ONOPENFILE](fs.openSync(this.absolute, 'r')) - } - - [READ] () { - let threw = true - try { - const { fd, buf, offset, length, pos } = this - const bytesRead = fs.readSync(fd, buf, offset, length, pos) - this[ONREAD](bytesRead) - threw = false - } finally { - // ignoring the error from close(2) is a bad practice, but at - // this point we already have an error, don't need another one - if (threw) { - try { - this[CLOSE](() => {}) - } catch (er) {} - } - } - } - - [AWAITDRAIN] (cb) { - cb() - } - - [CLOSE] (cb) { - fs.closeSync(this.fd) - cb() - } -} - -const WriteEntryTar = warner(class WriteEntryTar extends MiniPass { - constructor (readEntry, opt) { - opt = opt || {} - super(opt) - this.preservePaths = !!opt.preservePaths - this.portable = !!opt.portable - this.strict = !!opt.strict - this.noPax = !!opt.noPax - this.noMtime = !!opt.noMtime - - this.readEntry = readEntry - this.type = readEntry.type - if (this.type === 'Directory' && this.portable) - this.noMtime = true - - this.prefix = opt.prefix || null - - this.path = normPath(readEntry.path) - this.mode = this[MODE](readEntry.mode) - this.uid = this.portable ? null : readEntry.uid - this.gid = this.portable ? null : readEntry.gid - this.uname = this.portable ? null : readEntry.uname - this.gname = this.portable ? null : readEntry.gname - this.size = readEntry.size - this.mtime = this.noMtime ? null : opt.mtime || readEntry.mtime - this.atime = this.portable ? null : readEntry.atime - this.ctime = this.portable ? null : readEntry.ctime - this.linkpath = normPath(readEntry.linkpath) - - if (typeof opt.onwarn === 'function') - this.on('warn', opt.onwarn) - - let pathWarn = false - if (!this.preservePaths) { - const [root, stripped] = stripAbsolutePath(this.path) - if (root) { - this.path = stripped - pathWarn = root - } - } - - this.remain = readEntry.size - this.blockRemain = readEntry.startBlockSize - - this.header = new Header({ - path: this[PREFIX](this.path), - linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) - : this.linkpath, - // only the permissions and setuid/setgid/sticky bitflags - // not the higher-order bits that specify file type - mode: this.mode, - uid: this.portable ? null : this.uid, - gid: this.portable ? null : this.gid, - size: this.size, - mtime: this.noMtime ? null : this.mtime, - type: this.type, - uname: this.portable ? null : this.uname, - atime: this.portable ? null : this.atime, - ctime: this.portable ? null : this.ctime, - }) - - if (pathWarn) { - this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, { - entry: this, - path: pathWarn + this.path, - }) - } - - if (this.header.encode() && !this.noPax) { - super.write(new Pax({ - atime: this.portable ? null : this.atime, - ctime: this.portable ? null : this.ctime, - gid: this.portable ? null : this.gid, - mtime: this.noMtime ? null : this.mtime, - path: this[PREFIX](this.path), - linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath) - : this.linkpath, - size: this.size, - uid: this.portable ? null : this.uid, - uname: this.portable ? null : this.uname, - dev: this.portable ? null : this.readEntry.dev, - ino: this.portable ? null : this.readEntry.ino, - nlink: this.portable ? null : this.readEntry.nlink, - }).encode()) - } - - super.write(this.header.block) - readEntry.pipe(this) - } - - [PREFIX] (path) { - return prefixPath(path, this.prefix) - } - - [MODE] (mode) { - return modeFix(mode, this.type === 'Directory', this.portable) - } - - write (data) { - const writeLen = data.length - if (writeLen > this.blockRemain) - throw new Error('writing more to entry than is appropriate') - this.blockRemain -= writeLen - return super.write(data) - } - - end () { - if (this.blockRemain) - super.write(Buffer.alloc(this.blockRemain)) - return super.end() - } -}) - -WriteEntry.Sync = WriteEntrySync -WriteEntry.Tar = WriteEntryTar - -const getType = stat => - stat.isFile() ? 'File' - : stat.isDirectory() ? 'Directory' - : stat.isSymbolicLink() ? 'SymbolicLink' - : 'Unsupported' - -module.exports = WriteEntry |