diff options
Diffstat (limited to 'deps/npm/node_modules/node-gyp/node_modules/tar/lib/extract.js')
-rw-r--r-- | deps/npm/node_modules/node-gyp/node_modules/tar/lib/extract.js | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/lib/extract.js b/deps/npm/node_modules/node-gyp/node_modules/tar/lib/extract.js new file mode 100644 index 0000000000..fe1bb976eb --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/lib/extract.js @@ -0,0 +1,94 @@ +// give it a tarball and a path, and it'll dump the contents + +module.exports = Extract + +var tar = require("../tar.js") + , fstream = require("fstream") + , inherits = require("inherits") + , path = require("path") + +function Extract (opts) { + if (!(this instanceof Extract)) return new Extract(opts) + tar.Parse.apply(this) + + if (typeof opts !== "object") { + opts = { path: opts } + } + + // better to drop in cwd? seems more standard. + opts.path = opts.path || path.resolve("node-tar-extract") + opts.type = "Directory" + opts.Directory = true + + // similar to --strip or --strip-components + opts.strip = +opts.strip + if (!opts.strip || opts.strip <= 0) opts.strip = 0 + + this._fst = fstream.Writer(opts) + + this.pause() + var me = this + + // Hardlinks in tarballs are relative to the root + // of the tarball. So, they need to be resolved against + // the target directory in order to be created properly. + me.on("entry", function (entry) { + // if there's a "strip" argument, then strip off that many + // path components. + if (opts.strip) { + var p = entry.path.split("/").slice(opts.strip).join("/") + entry.path = entry.props.path = p + if (entry.linkpath) { + var lp = entry.linkpath.split("/").slice(opts.strip).join("/") + entry.linkpath = entry.props.linkpath = lp + } + } + if (entry.type === "Link") { + entry.linkpath = entry.props.linkpath = + path.join(opts.path, path.join("/", entry.props.linkpath)) + } + + if (entry.type === "SymbolicLink") { + var dn = path.dirname(entry.path) || "" + var linkpath = entry.props.linkpath + var target = path.resolve(opts.path, dn, linkpath) + if (target.indexOf(opts.path) !== 0) { + linkpath = path.join(opts.path, path.join("/", linkpath)) + } + entry.linkpath = entry.props.linkpath = linkpath + } + }) + + this._fst.on("ready", function () { + me.pipe(me._fst, { end: false }) + me.resume() + }) + + this._fst.on('error', function(err) { + me.emit('error', err) + }) + + this._fst.on('drain', function() { + me.emit('drain') + }) + + // this._fst.on("end", function () { + // console.error("\nEEEE Extract End", me._fst.path) + // }) + + this._fst.on("close", function () { + // console.error("\nEEEE Extract End", me._fst.path) + me.emit("finish") + me.emit("end") + me.emit("close") + }) +} + +inherits(Extract, tar.Parse) + +Extract.prototype._streamEnd = function () { + var me = this + if (!me._ended || me._entry) me.error("unexpected eof") + me._fst.end() + // my .end() is coming later. +} |