399 lines
11 KiB
JavaScript
399 lines
11 KiB
JavaScript
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var isWindows = java.lang.System.getProperty("os.name").toLowerCase().contains("windows");
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var fileSeparator = exports.sep = String( java.lang.System.getProperty("file.separator") );
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function noOp() {}
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// exported for the benefit of our `fs` shim
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var asyncify = exports._asyncify = function(func) {
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return function() {
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var args = Array.prototype.slice.call(arguments);
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var callback = args.pop();
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var data;
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callback = typeof callback === 'function' ? callback : noOp;
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try {
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data = func.apply(this, args);
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process.nextTick(function() {
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callback(null, data);
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});
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}
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catch (e) {
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process.nextTick(function() {
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callback(e);
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});
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}
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};
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};
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/**
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* Returns everything on a path except for the last item
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* e.g. if the path was 'path/to/something', the return value would be 'path/to'
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*/
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exports.dirname = function(_path) {
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var f = new java.io.File(_path);
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return String(f.getParent());
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};
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/**
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* Returns the last item on a path
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*/
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exports.basename = function(_path, ext) {
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var f = new java.io.File(_path);
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var p = f.getParentFile();
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var base = String(f.getName());
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if (p != null) {
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var idx = ext ? base.indexOf(ext) : -1;
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if (idx !== -1) {
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base = base.substring(0, base.length - ext.length);
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}
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}
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return base;
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};
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exports.existsSync = function(_path) {
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var f = new java.io.File(_path);
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if (f.isDirectory()){
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return true;
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}
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if (!f.exists()){
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return false;
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}
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if (!f.canRead()){
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return false;
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}
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return true;
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};
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exports.exists = asyncify(exports.existsSync);
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//Code below taken from node
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//resolves . and .. elements in a path array with directory names there
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//must be no slashes, empty elements, or device names (c:\) in the array
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//(so also no leading and trailing slashes - it does not distinguish
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//relative and absolute paths)
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function normalizeArray(parts, allowAboveRoot) {
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// if the path tries to go above the root, `up` ends up > 0
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var up = 0;
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for ( var i = parts.length - 1; i >= 0; i--) {
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var last = parts[i];
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if (last == '.') {
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parts.splice(i, 1);
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} else if (last === '..') {
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parts.splice(i, 1);
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up++;
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} else if (up) {
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parts.splice(i, 1);
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up--;
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}
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}
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// if the path is allowed to go above the root, restore leading ..s
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if (allowAboveRoot) {
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for (; up--; up) {
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parts.unshift('..');
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}
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}
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return parts;
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}
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if (isWindows) {
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// Regex to split a windows path into three parts: [*, device, slash,
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// tail] windows-only
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var splitDeviceRe =
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/^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?([\\\/])?([\s\S]*?)$/;
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// path.resolve([from ...], to)
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// windows version
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exports.resolve = function() {
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var resolvedDevice = '',
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resolvedTail = '',
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resolvedAbsolute = false;
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for (var i = arguments.length - 1; i >= -1; i--) {
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var path;
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if (i >= 0) {
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path = arguments[i];
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} else if (!resolvedDevice) {
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path = process.cwd();
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} else {
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// Windows has the concept of drive-specific current working
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// directories. If we've resolved a drive letter but not yet an
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// absolute path, get cwd for that drive. We're sure the device is not
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// an unc path at this points, because unc paths are always absolute.
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path = process.env['=' + resolvedDevice];
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// Verify that a drive-local cwd was found and that it actually points
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// to our drive. If not, default to the drive's root.
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if (!path || path.substr(0, 3).toLowerCase() !==
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resolvedDevice.toLowerCase() + '\\') {
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path = resolvedDevice + '\\';
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}
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}
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// Skip empty and invalid entries
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if (typeof path !== 'string' || !path) {
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continue;
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}
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var result = splitDeviceRe.exec(path),
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device = result[1] || '',
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isUnc = device && device.charAt(1) !== ':',
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isAbsolute = !!result[2] || isUnc, // UNC paths are always absolute
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tail = result[3];
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if (device &&
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resolvedDevice &&
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device.toLowerCase() !== resolvedDevice.toLowerCase()) {
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// This path points to another device so it is not applicable
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continue;
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}
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if (!resolvedDevice) {
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resolvedDevice = device;
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}
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if (!resolvedAbsolute) {
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resolvedTail = tail + '\\' + resolvedTail;
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resolvedAbsolute = isAbsolute;
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}
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if (resolvedDevice && resolvedAbsolute) {
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break;
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}
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}
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// Replace slashes (in UNC share name) by backslashes
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resolvedDevice = resolvedDevice.replace(/\//g, '\\');
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// At this point the path should be resolved to a full absolute path,
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// but handle relative paths to be safe (might happen when process.cwd()
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// fails)
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// Normalize the tail path
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function f(p) {
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return !!p;
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}
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resolvedTail = normalizeArray(resolvedTail.split(/[\\\/]+/).filter(f),
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!resolvedAbsolute).join('\\');
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return (resolvedDevice + (resolvedAbsolute ? '\\' : '') + resolvedTail) ||
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'.';
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};
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// windows version
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exports.normalize = function(_path) {
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var result = splitDeviceRe.exec(_path),
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device = result[1] || '',
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isUnc = device && device.charAt(1) !== ':',
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isAbsolute = !!result[2] || isUnc, // UNC paths are always absolute
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tail = result[3],
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trailingSlash = /[\\\/]$/.test(tail);
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// Normalize the tail path
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tail = normalizeArray(tail.split(/[\\\/]+/).filter(function(p) {
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return !!p;
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}), !isAbsolute).join('\\');
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if (!tail && !isAbsolute) {
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tail = '.';
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}
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if (tail && trailingSlash) {
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tail += '\\';
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}
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return device + (isAbsolute ? '\\' : '') + tail;
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};
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//windows version
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exports.join = function() {
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function f(p) {
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return p && typeof p === 'string';
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}
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var _paths = Array.prototype.slice.call(arguments, 0).filter(f);
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var joined = _paths.join('\\');
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// Make sure that the joined path doesn't start with two slashes
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// - it will be mistaken for an unc path by normalize() -
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// unless the _paths[0] also starts with two slashes
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if (/^[\\\/]{2}/.test(joined) && !/^[\\\/]{2}/.test(_paths[0])) {
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joined = joined.slice(1);
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}
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return exports.normalize(joined);
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};
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// path.relative(from, to)
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// it will solve the relative path from 'from' to 'to', for instance:
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// from = 'C:\\orandea\\test\\aaa'
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// to = 'C:\\orandea\\impl\\bbb'
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// The output of the function should be: '..\\..\\impl\\bbb'
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// windows version
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exports.relative = function(from, to) {
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from = exports.resolve(from);
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to = exports.resolve(to);
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// windows is not case sensitive
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var lowerFrom = from.toLowerCase();
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var lowerTo = to.toLowerCase();
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function trim(arr) {
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var start = 0;
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for (; start < arr.length; start++) {
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if (arr[start] !== '') {
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break;
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}
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}
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var end = arr.length - 1;
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for (; end >= 0; end--) {
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if (arr[end] !== '') {
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break;
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}
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}
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if (start > end) {
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return [];
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}
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return arr.slice(start, end - start + 1);
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}
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var toParts = trim(to.split('\\'));
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var lowerFromParts = trim(lowerFrom.split('\\'));
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var lowerToParts = trim(lowerTo.split('\\'));
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var length = Math.min(lowerFromParts.length, lowerToParts.length);
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var samePartsLength = length;
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for (var i = 0; i < length; i++) {
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if (lowerFromParts[i] !== lowerToParts[i]) {
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samePartsLength = i;
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break;
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}
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}
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if (samePartsLength === 0) {
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return to;
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}
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var outputParts = [];
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for (i = samePartsLength; i < lowerFromParts.length; i++) {
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outputParts.push('..');
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}
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outputParts = outputParts.concat(toParts.slice(samePartsLength));
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return outputParts.join('\\');
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};
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} else {
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// path.resolve([from ...], to)
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// posix version
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exports.resolve = function() {
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var resolvedPath = '',
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resolvedAbsolute = false;
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for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
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var path = (i >= 0) ? arguments[i] : process.cwd();
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// Skip empty and invalid entries
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if (typeof path !== 'string' || !path) {
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continue;
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}
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resolvedPath = path + '/' + resolvedPath;
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resolvedAbsolute = path.charAt(0) === '/';
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}
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// At this point the path should be resolved to a full absolute path, but
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// handle relative paths to be safe (might happen when process.cwd() fails)
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// Normalize the path
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resolvedPath = normalizeArray(resolvedPath.split('/').filter(function(p) {
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return !!p;
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}), !resolvedAbsolute).join('/');
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return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
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};
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// path.normalize(_path)
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// posix version
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exports.normalize = function(_path) {
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var isAbsolute = _path.charAt(0) === '/',
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trailingSlash = _path.slice(-1) === '/';
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// Normalize the path
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_path = normalizeArray(_path.split('/').filter(function(p) {
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return !!p;
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}), !isAbsolute).join('/');
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if (!_path && !isAbsolute) {
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_path = '.';
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}
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if (_path && trailingSlash) {
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_path += '/';
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}
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return (isAbsolute ? '/' : '') + _path;
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};
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// posix version
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exports.join = function() {
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var _paths = Array.prototype.slice.call(arguments, 0);
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return exports.normalize(_paths.filter(function(p, index) {
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return p && typeof p === 'string';
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}).join('/'));
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};
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// path.relative(from, to)
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// posix version
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exports.relative = function(from, to) {
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from = exports.resolve(from).substr(1);
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to = exports.resolve(to).substr(1);
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function trim(arr) {
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var start = 0;
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for (; start < arr.length; start++) {
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if (arr[start] !== '') {
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break;
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}
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}
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var end = arr.length - 1;
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for (; end >= 0; end--) {
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if (arr[end] !== '') {
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break;
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}
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}
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if (start > end) {
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return [];
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}
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return arr.slice(start, end - start + 1);
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}
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var fromParts = trim(from.split('/'));
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var toParts = trim(to.split('/'));
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var length = Math.min(fromParts.length, toParts.length);
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var samePartsLength = length;
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for (var i = 0; i < length; i++) {
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if (fromParts[i] !== toParts[i]) {
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samePartsLength = i;
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break;
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}
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}
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var outputParts = [];
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for (i = samePartsLength; i < fromParts.length; i++) {
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outputParts.push('..');
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}
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outputParts = outputParts.concat(toParts.slice(samePartsLength));
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return outputParts.join('/');
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};
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}
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