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Bug 769310 - Unix paths. r=taras
This commit is contained in:
David Rajchenbach-Teller
parent
91f2ef4135
commit
0d6ae76453
@ -25,6 +25,7 @@ include $(topsrcdir)/config/rules.mk
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libs::
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$(NSINSTALL) $(srcdir)/osfile_shared.jsm $(FINAL_TARGET)/modules/osfile
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$(NSINSTALL) $(srcdir)/osfile_unix_back.jsm $(FINAL_TARGET)/modules/osfile
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$(NSINSTALL) $(srcdir)/ospath_unix_back.jsm $(FINAL_TARGET)/modules/osfile
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$(NSINSTALL) $(srcdir)/osfile_unix_front.jsm $(FINAL_TARGET)/modules/osfile
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$(NSINSTALL) $(srcdir)/ospath_win_back.jsm $(FINAL_TARGET)/modules/osfile
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$(NSINSTALL) $(srcdir)/osfile_win_back.jsm $(FINAL_TARGET)/modules/osfile
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@ -470,108 +470,6 @@
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return result;
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};
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exports.OS.Unix.Path = {
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/**
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* Return the final part of the path.
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* The final part of the path is everything after the last "/".
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*/
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basename: function basename(path) {
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return path.slice(path.lastIndexOf("/") + 1);
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},
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/**
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* Return the directory part of the path.
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* The directory part of the path is everything before the last
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* "/". If the last few characters of this part are also "/",
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* they are ignored.
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*
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* If the path contains no directory, return ".".
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*/
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dirname: function dirname(path) {
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let index = path.lastIndexOf("/");
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if (index == -1) {
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return ".";
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}
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while (index >= 0 && path[index] == "/") {
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--index;
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}
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return path.slice(0, index + 1);
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},
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/**
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* Join path components.
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* This is the recommended manner of getting the path of a file/subdirectory
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* in a directory.
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*
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* Example: Obtaining $TMP/foo/bar in an OS-independent manner
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* var tmpDir = OS.Path.to("TmpD");
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* var path = OS.Path.join(tmpDir, "foo", "bar");
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*
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* Under Unix, this will return "/tmp/foo/bar".
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*/
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join: function join(path /*...*/) {
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// If there is a path that starts with a "/", eliminate everything before
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let paths = [];
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for each(let i in arguments) {
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if (i.length != 0 && i[0] == "/") {
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paths = [i];
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} else {
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paths.push(i);
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}
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}
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return paths.join("/");
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},
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/**
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* Normalize a path by removing any unneeded ".", "..", "//".
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*/
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normalize: function normalize(path) {
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let stack = [];
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let absolute;
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if (path.length >= 0 && path[0] == "/") {
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absolute = true;
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} else {
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absolute = false;
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}
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path.split("/").forEach(function loop(v) {
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switch (v) {
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case "": case ".":// fallthrough
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break;
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case "..":
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if (stack.length == 0) {
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if (absolute) {
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throw new Error("Path is ill-formed: attempting to go past root");
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} else {
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stack.push("..");
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}
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} else {
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stack.pop();
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}
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break;
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default:
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stack.push(v);
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}
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});
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let string = stack.join("/");
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return absolute ? "/" + string : string;
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},
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/**
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* Return the components of a path.
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* You should generally apply this function to a normalized path.
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*
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* @return {{
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* {bool} absolute |true| if the path is absolute, |false| otherwise
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* {array} components the string components of the path
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* }}
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*
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* Other implementations may add additional OS-specific informations.
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*/
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split: function split(path) {
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return {
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absolute: path.length && path[0] == "/",
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components: path.split("/")
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};
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}
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};
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// Export useful stuff for extensibility
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exports.OS.Unix.libc = libc;
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@ -18,6 +18,7 @@
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}
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importScripts("resource://gre/modules/osfile/osfile_shared.jsm");
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importScripts("resource://gre/modules/osfile/osfile_unix_back.jsm");
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importScripts("resource://gre/modules/osfile/ospath_unix_back.jsm");
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(function(exports) {
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"use strict";
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128
toolkit/components/osfile/ospath_unix_back.jsm
Normal file
128
toolkit/components/osfile/ospath_unix_back.jsm
Normal file
@ -0,0 +1,128 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Handling native paths.
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*
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* This module contains a number of functions destined to simplify
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* working with native paths through a cross-platform API. Functions
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* of this module will only work with the following assumptions:
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*
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* - paths are valid;
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* - paths are defined with one of the grammars that this module can
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* parse (see later);
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* - all path concatenations go through function |join|.
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*/
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(function(exports) {
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"use strict";
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if (!exports.OS) {
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exports.OS = {};
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}
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if (!exports.OS.Unix) {
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exports.OS.Unix = {};
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}
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if (exports.OS.Unix.Path) {
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return; // Avoid double-initialization
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}
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exports.OS.Unix.Path = {
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/**
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* Return the final part of the path.
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* The final part of the path is everything after the last "/".
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*/
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basename: function basename(path) {
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return path.slice(path.lastIndexOf("/") + 1);
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},
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/**
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* Return the directory part of the path.
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* The directory part of the path is everything before the last
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* "/". If the last few characters of this part are also "/",
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* they are ignored.
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*
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* If the path contains no directory, return ".".
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*/
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dirname: function dirname(path) {
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let index = path.lastIndexOf("/");
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if (index == -1) {
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return ".";
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}
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while (index >= 0 && path[index] == "/") {
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--index;
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}
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return path.slice(0, index + 1);
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},
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/**
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* Join path components.
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* This is the recommended manner of getting the path of a file/subdirectory
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* in a directory.
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*
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* Example: Obtaining $TMP/foo/bar in an OS-independent manner
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* var tmpDir = OS.Path.to("TmpD");
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* var path = OS.Path.join(tmpDir, "foo", "bar");
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*
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* Under Unix, this will return "/tmp/foo/bar".
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*/
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join: function join(path /*...*/) {
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// If there is a path that starts with a "/", eliminate everything before
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let paths = [];
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for each(let i in arguments) {
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if (i.length != 0 && i[0] == "/") {
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paths = [i];
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} else {
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paths.push(i);
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}
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}
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return paths.join("/");
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},
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/**
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* Normalize a path by removing any unneeded ".", "..", "//".
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*/
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normalize: function normalize(path) {
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let stack = [];
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let absolute;
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if (path.length >= 0 && path[0] == "/") {
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absolute = true;
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} else {
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absolute = false;
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}
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path.split("/").forEach(function loop(v) {
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switch (v) {
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case "": case ".":// fallthrough
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break;
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case "..":
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if (stack.length == 0) {
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if (absolute) {
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throw new Error("Path is ill-formed: attempting to go past root");
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} else {
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stack.push("..");
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}
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} else {
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stack.pop();
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}
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break;
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default:
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stack.push(v);
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}
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});
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let string = stack.join("/");
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return absolute ? "/" + string : string;
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},
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/**
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* Return the components of a path.
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* You should generally apply this function to a normalized path.
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*
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* @return {{
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* {bool} absolute |true| if the path is absolute, |false| otherwise
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* {array} components the string components of the path
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* }}
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*
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* Other implementations may add additional OS-specific informations.
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*/
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split: function split(path) {
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return {
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absolute: path.length && path[0] == "/",
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components: path.split("/")
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};
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}
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};
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}(this));
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