initial commit

node_modules/mv/index.js

@@ -0,0 +1,105 @@
+var fs = require('fs');
+var ncp = require('ncp').ncp;
+var path = require('path');
+var rimraf = require('rimraf');
+var mkdirp = require('mkdirp');
+
+module.exports = mv;
+
+function mv(source, dest, options, cb){
+  if (typeof options === 'function') {
+    cb = options;
+    options = {};
+  }
+  var shouldMkdirp = !!options.mkdirp;
+  var clobber = options.clobber !== false;
+  var limit = options.limit || 16;
+
+  if (shouldMkdirp) {
+    mkdirs();
+  } else {
+    doRename();
+  }
+
+  function mkdirs() {
+    mkdirp(path.dirname(dest), function(err) {
+      if (err) return cb(err);
+      doRename();
+    });
+  }
+
+  function doRename() {
+    if (clobber) {
+      fs.rename(source, dest, function(err) {
+        if (!err) return cb();
+        if (err.code !== 'EXDEV') return cb(err);
+        moveFileAcrossDevice(source, dest, clobber, limit, cb);
+      });
+    } else {
+      fs.link(source, dest, function(err) {
+        if (err) {
+          if (err.code === 'EXDEV') {
+            moveFileAcrossDevice(source, dest, clobber, limit, cb);
+            return;
+          }
+          if (err.code === 'EISDIR' || err.code === 'EPERM') {
+            moveDirAcrossDevice(source, dest, clobber, limit, cb);
+            return;
+          }
+          cb(err);
+          return;
+        }
+        fs.unlink(source, cb);
+      });
+    }
+  }
+}
+
+function moveFileAcrossDevice(source, dest, clobber, limit, cb) {
+  var outFlags = clobber ? 'w' : 'wx';
+  var ins = fs.createReadStream(source);
+  var outs = fs.createWriteStream(dest, {flags: outFlags});
+  ins.on('error', function(err){
+    ins.destroy();
+    outs.destroy();
+    outs.removeListener('close', onClose);
+    if (err.code === 'EISDIR' || err.code === 'EPERM') {
+      moveDirAcrossDevice(source, dest, clobber, limit, cb);
+    } else {
+      cb(err);
+    }
+  });
+  outs.on('error', function(err){
+    ins.destroy();
+    outs.destroy();
+    outs.removeListener('close', onClose);
+    cb(err);
+  });
+  outs.once('close', onClose);
+  ins.pipe(outs);
+  function onClose(){
+    fs.unlink(source, cb);
+  }
+}
+
+function moveDirAcrossDevice(source, dest, clobber, limit, cb) {
+  var options = {
+    stopOnErr: true,
+    clobber: false,
+    limit: limit,
+  };
+  if (clobber) {
+    rimraf(dest, { disableGlob: true }, function(err) {
+      if (err) return cb(err);
+      startNcp();
+    });
+  } else {
+    startNcp();
+  }
+  function startNcp() {
+    ncp(source, dest, options, function(errList) {
+      if (errList) return cb(errList[0]);
+      rimraf(source, { disableGlob: true }, cb);
+    });
+  }
+}