diff options
Diffstat (limited to 'sandbox/testAppNevena/Front/node_modules/tar/lib/read-entry.js')
-rw-r--r-- | sandbox/testAppNevena/Front/node_modules/tar/lib/read-entry.js | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/tar/lib/read-entry.js b/sandbox/testAppNevena/Front/node_modules/tar/lib/read-entry.js new file mode 100644 index 00000000..183a6050 --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/tar/lib/read-entry.js @@ -0,0 +1,100 @@ +'use strict' +const MiniPass = require('minipass') +const normPath = require('./normalize-windows-path.js') + +const SLURP = Symbol('slurp') +module.exports = class ReadEntry extends MiniPass { + constructor (header, ex, gex) { + super() + // read entries always start life paused. this is to avoid the + // situation where Minipass's auto-ending empty streams results + // in an entry ending before we're ready for it. + this.pause() + this.extended = ex + this.globalExtended = gex + this.header = header + this.startBlockSize = 512 * Math.ceil(header.size / 512) + this.blockRemain = this.startBlockSize + this.remain = header.size + this.type = header.type + this.meta = false + this.ignore = false + switch (this.type) { + case 'File': + case 'OldFile': + case 'Link': + case 'SymbolicLink': + case 'CharacterDevice': + case 'BlockDevice': + case 'Directory': + case 'FIFO': + case 'ContiguousFile': + case 'GNUDumpDir': + break + + case 'NextFileHasLongLinkpath': + case 'NextFileHasLongPath': + case 'OldGnuLongPath': + case 'GlobalExtendedHeader': + case 'ExtendedHeader': + case 'OldExtendedHeader': + this.meta = true + break + + // NOTE: gnutar and bsdtar treat unrecognized types as 'File' + // it may be worth doing the same, but with a warning. + default: + this.ignore = true + } + + this.path = normPath(header.path) + this.mode = header.mode + if (this.mode) + this.mode = this.mode & 0o7777 + this.uid = header.uid + this.gid = header.gid + this.uname = header.uname + this.gname = header.gname + this.size = header.size + this.mtime = header.mtime + this.atime = header.atime + this.ctime = header.ctime + this.linkpath = normPath(header.linkpath) + this.uname = header.uname + this.gname = header.gname + + if (ex) + this[SLURP](ex) + if (gex) + this[SLURP](gex, true) + } + + write (data) { + const writeLen = data.length + if (writeLen > this.blockRemain) + throw new Error('writing more to entry than is appropriate') + + const r = this.remain + const br = this.blockRemain + this.remain = Math.max(0, r - writeLen) + this.blockRemain = Math.max(0, br - writeLen) + if (this.ignore) + return true + + if (r >= writeLen) + return super.write(data) + + // r < writeLen + return super.write(data.slice(0, r)) + } + + [SLURP] (ex, global) { + for (const k in ex) { + // we slurp in everything except for the path attribute in + // a global extended header, because that's weird. + if (ex[k] !== null && ex[k] !== undefined && + !(global && k === 'path')) + this[k] = k === 'path' || k === 'linkpath' ? normPath(ex[k]) : ex[k] + } + } +} |