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exports.join = function () { | |||
return exports.normalize(Array.prototype.join.call(arguments, "/")); | |||
}; | |||
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exports.normalizeArray = function (parts, keepBlanks) { | |||
var directories = [], prev; | |||
for (var i = 0, l = parts.length - 1; i <= l; i++) { | |||
var directory = parts[i]; | |||
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// if it's blank, but it's not the first thing, and not the last thing, skip it. | |||
if (directory === "" && i !== 0 && i !== l && !keepBlanks) continue; | |||
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// if it's a dot, and there was some previous dir already, then skip it. | |||
if (directory === "." && prev !== undefined) continue; | |||
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if ( | |||
directory === ".." | |||
&& directories.length | |||
&& prev !== ".." | |||
&& prev !== "." | |||
&& prev !== undefined | |||
&& (prev !== "" || keepBlanks) | |||
) { | |||
directories.pop(); | |||
prev = directories.slice(-1)[0] | |||
} else { | |||
if (prev === ".") directories.pop(); | |||
directories.push(directory); | |||
prev = directory; | |||
} | |||
} | |||
return directories; | |||
}; | |||
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exports.normalize = function (path, keepBlanks) { | |||
return exports.normalizeArray(path.split("/"), keepBlanks).join("/"); | |||
}; | |||
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exports.dirname = function (path) { | |||
return path && path.substr(0, path.lastIndexOf("/")) || "."; | |||
}; | |||
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exports.filename = function () { | |||
throw new Error("path.filename is deprecated. Please use path.basename instead."); | |||
}; | |||
exports.basename = function (path, ext) { | |||
var f = path.substr(path.lastIndexOf("/") + 1); | |||
if (ext && f.substr(-1 * ext.length) === ext) { | |||
f = f.substr(0, f.length - ext.length); | |||
} | |||
return f; | |||
}; | |||
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exports.extname = function (path) { | |||
var index = path.lastIndexOf('.'); | |||
return index < 0 ? '' : path.substring(index); | |||
}; | |||
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exports.exists = function (path, callback) { | |||
process.binding('fs').stat(path, function (err, stats) { | |||
if (callback) callback(err ? false : true); | |||
}); | |||
}; |
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