first commit

build/node_modules/lnfs/index.js

@@ -0,0 +1,101 @@
+'use strict';
+var fs = require('fs');
+var path = require('path');
+var mkdirp = require('mkdirp');
+var rimraf = require('rimraf');
+
+function link(src, dest, type, cb) {
+	rimraf(dest, function (err) {
+		if (err) {
+			cb(err);
+			return;
+		}
+
+		mkdirp(path.dirname(dest), function (err) {
+			if (err) {
+				cb(err);
+				return;
+			}
+
+			fs.symlink(src, dest, type, cb);
+		});
+	});
+}
+
+module.exports = function (src, dest, type, cb) {
+	if (typeof src !== 'string' || typeof dest !== 'string') {
+		throw new Error('Source file and target required');
+	}
+
+	if (typeof type === 'function' && !cb) {
+		cb = type;
+		type = null;
+	}
+
+	src = path.resolve(src);
+	dest = path.resolve(dest);
+
+	fs.lstat(dest, function (err, stats) {
+		if (err && err.code === 'ENOENT') {
+			return link(src, dest, type, cb);
+		}
+
+		if (err) {
+			cb(err);
+			return;
+		}
+
+		if (!stats.isSymbolicLink()) {
+			return link(src, dest, type, cb);
+		}
+
+		fs.realpath(dest, function (err, res) {
+			if (err) {
+				cb(err);
+				return;
+			}
+
+			if (res === src) {
+				cb();
+				return;
+			}
+
+			link(src, dest, type, cb);
+		});
+	});
+};
+
+module.exports.sync = function (src, dest, type) {
+	if (typeof src !== 'string' || typeof dest !== 'string') {
+		throw new Error('Source file and target required');
+	}
+
+	src = path.resolve(src);
+	dest = path.resolve(dest);
+
+	try {
+		var stats = fs.lstatSync(dest);
+		var realpath = fs.realpathSync(dest);
+
+		if (!stats.isSymbolicLink()) {
+			rimraf.sync(dest);
+			fs.symlinkSync(src, dest, type);
+			return;
+		}
+
+		if (realpath === src) {
+			return;
+		}
+
+		rimraf.sync(dest);
+		fs.symlinkSync(src, dest, type);
+	} catch (err) {
+		if (err.code === 'ENOENT') {
+			mkdirp.sync(path.dirname(dest));
+			fs.symlinkSync(src, dest, type);
+			return;
+		}
+
+		throw err;
+	}
+};