diff --git a/bin/cli.js b/bin/cli.js
index 79a61b5..686c750 100755
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 // Generated by LiveScript 1.6.0
-var t1, fs, path, yargs, colors, srcbuild, lib, server, watch, api, cfgfile, argv, root, doOpen, port, main, config;
+var t1, fs, path, yargs, colors, srcbuild, lib, server, api, cfgfile, argv, root, doOpen, port, main, config;
 t1 = Date.now();
 fs = require('fs');
 path = require('path');
@@ -9,7 +9,6 @@ colors = require('colors');
 srcbuild = require('@plotdb/srcbuild');
 lib = path.dirname(fs.realpathSync(__filename));
 server = require(lib + "/lib/server");
-watch = require(lib + "/lib/watch");
 api = require(lib + "/api/index");
 if (/\.json$/.exec(process.argv[2] || '')) {
   cfgfile = process.argv[2];
diff --git a/bin/lib/build/aux.js b/bin/lib/build/aux.js
deleted file mode 100644
index b947d90..0000000
--- a/bin/lib/build/aux.js
+++ /dev/null
@@ -1,30 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, aux;
-fs = require('fs');
-aux = {
-  newer: function(f1, files, strict){
-    var mtime;
-    files == null && (files = []);
-    strict == null && (strict = false);
-    if (!fs.existsSync(f1)) {
-      return false;
-    }
-    if (typeof files === 'number') {
-      mtime = files;
-      return strict
-        ? fs.statSync(f1).mtime - mtime > 0
-        : fs.statSync(f1).mtime - mtime >= 0;
-    }
-    files = Array.isArray(files)
-      ? files
-      : [files];
-    return files.length === files.filter(function(f2){
-      if (strict) {
-        return !fs.existsSync(f2) || fs.statSync(f1).mtime - fs.statSync(f2).mtime > 0;
-      } else {
-        return !fs.existsSync(f2) || fs.statSync(f1).mtime - fs.statSync(f2).mtime >= 0;
-      }
-    }).length;
-  }
-};
-module.exports = aux;
\ No newline at end of file
diff --git a/bin/lib/build/bundle.js b/bin/lib/build/bundle.js
deleted file mode 100644
index eb95eef..0000000
--- a/bin/lib/build/bundle.js
+++ /dev/null
@@ -1,189 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, fsExtra, livescript, stylus, path, colors, uglifyJs, uglifycss, aux, debounce, cwd, bundle, task, bundleFile, build, batch, main;
-fs = require('fs');
-fsExtra = require('fs-extra');
-livescript = require('livescript');
-stylus = require('stylus');
-path = require('path');
-colors = require('colors');
-uglifyJs = require('uglify-js');
-uglifycss = require('uglifycss');
-aux = require('./aux');
-debounce = require('@loadingio/debounce.js');
-cwd = path.resolve(process.cwd());
-bundle = {
-  css: {},
-  js: {}
-};
-task = {
-  css: {},
-  js: {}
-};
-bundleFile = "bundle.json";
-build = function(arg$){
-  var name, list, type, t1, outdir, outfile, outfilemin;
-  name = arg$.name, list = arg$.list, type = arg$.type;
-  t1 = Date.now();
-  outdir = "static/" + type + "/pack/";
-  outfile = path.join(outdir, name + "." + type);
-  outfilemin = path.join(outdir, name + ".min." + type);
-  return Promise.resolve().then(function(){
-    return new Promise(function(res, rej){
-      return fsExtra.ensureDir(outdir, function(){
-        return res();
-      });
-    });
-  }).then(function(){
-    return Promise.all([
-      Promise.all(list.map(function(f){
-        return new Promise(function(res, rej){
-          return fs.readFile(f, function(e, b){
-            if (e) {
-              return rej(e);
-            } else {
-              return res({
-                name: f,
-                code: b.toString()
-              });
-            }
-          });
-        });
-      })), Promise.all(list.map(function(f){
-        return new Promise(function(res, rej){
-          var fm;
-          fm = f.replace(/\.(js|css)$/, '.min.$1');
-          return fs.readFile(fm, function(e, b){
-            if (e) {
-              return fs.readFile(f, function(e, b){
-                if (e) {
-                  return rej(e);
-                } else {
-                  return res({
-                    name: fm,
-                    code: b.toString()
-                  });
-                }
-              });
-            } else {
-              return res({
-                name: f,
-                code: b.toString()
-              });
-            }
-          });
-        });
-      }))
-    ]);
-  }).then(function(ret){
-    var normal, minified;
-    normal = ret[0].map(function(it){
-      return it.code;
-    }).join('');
-    minified = ret[1].map(function(arg$){
-      var name, code;
-      name = arg$.name, code = arg$.code;
-      return /\.min\./.exec(name)
-        ? code
-        : type === 'js'
-          ? uglifyJs.minify(code).code
-          : type === 'css' ? uglifycss.processString(code, {
-            uglyComments: true
-          }) : code;
-    }).join('');
-    return Promise.all([
-      new Promise(function(res, rej){
-        return fs.writeFile(outfile, normal, function(e, b){
-          return res(b);
-        });
-      }), new Promise(function(res, rej){
-        return fs.writeFile(outfilemin, minified, function(e, b){
-          return res(b);
-        });
-      })
-    ]);
-  }).then(function(){
-    return {
-      type: type,
-      name: name,
-      elapsed: Date.now() - t1,
-      size: fs.statSync(outfile).size,
-      sizeMin: fs.statSync(outfilemin).size
-    };
-  });
-};
-batch = debounce(500, function(){
-  var promises, type, name, out;
-  promises = [];
-  for (type in task) {
-    for (name in task[type]) {
-      out = "static/" + type + "/pack/" + name + "." + type;
-      if (aux.newer(bundleFile, [out], true) || (task[type][name].length && !aux.newer(out, task[type][name]))) {
-        promises.push(build({
-          type: type,
-          name: name,
-          list: bundle[type][name]
-        }));
-      }
-    }
-  }
-  task = {
-    css: {},
-    js: {}
-  };
-  return Promise.all(promises).then(function(list){
-    var i$, len$, info, type, name, size, sizeMin, elapsed, results$ = [];
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      info = list[i$];
-      type = info.type, name = info.name, size = info.size, sizeMin = info.sizeMin, elapsed = info.elapsed;
-      console.log("[BUILD] bundle static/" + type + "/pack/" + name + "." + type + " ( " + size + " bytes / " + elapsed + "ms )");
-      results$.push(console.log("[BUILD] bundle static/" + type + "/pack/" + name + ".min." + type + " ( " + sizeMin + " bytes / " + elapsed + "ms )"));
-    }
-    return results$;
-  });
-});
-main = {
-  map: function(list){},
-  build: function(list){
-    var type, n, ref$, l, e, i$, len$, file;
-    if (in$(bundleFile, list)) {
-      try {
-        bundle = JSON.parse(fs.readFileSync(bundleFile).toString());
-        for (type in bundle) {
-          for (n in ref$ = bundle[type]) {
-            l = ref$[n];
-            bundle[type][n] = l.map(fn$);
-          }
-        }
-      } catch (e$) {
-        e = e$;
-        console.log(e);
-        return;
-      }
-    }
-    for (type in bundle) {
-      for (n in ref$ = bundle[type]) {
-        l = ref$[n];
-        if (!task[type][n]) {
-          task[type][n] = [];
-        }
-        for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-          file = list[i$];
-          if (in$(file, l)) {
-            task[type][n].push(file);
-          }
-        }
-      }
-    }
-    return batch();
-    function fn$(it){
-      return path.join('static', it);
-    }
-  },
-  unlink: function(list){}
-};
-module.exports = main;
-function in$(x, xs){
-  var i = -1, l = xs.length >>> 0;
-  while (++i < l) if (x === xs[i]) return true;
-  return false;
-}
\ No newline at end of file
diff --git a/bin/lib/build/lsc.js b/bin/lib/build/lsc.js
deleted file mode 100644
index d6f6264..0000000
--- a/bin/lib/build/lsc.js
+++ /dev/null
@@ -1,74 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, fsExtra, livescript, path, colors, uglifyJs, aux, main;
-fs = require('fs');
-fsExtra = require('fs-extra');
-livescript = require('livescript');
-path = require('path');
-colors = require('colors');
-uglifyJs = require('uglify-js');
-aux = require('./aux');
-main = {
-  map: function(list){
-    return list.filter(function(it){
-      return /^src\/ls/.exec(it.file || it);
-    }).map(function(it){
-      var src, mtime, des, desMin;
-      src = it.file || it;
-      mtime = it.mtime || Date.now();
-      des = path.normalize(src.replace(/^src\/ls/, "static/js/").replace(/\.ls/, ".js"));
-      desMin = des.replace(/\.js$/, '.min.js');
-      return {
-        src: src,
-        des: des,
-        desMin: desMin,
-        mtime: mtime
-      };
-    });
-  },
-  build: function(list){
-    var i$, len$, ref$, src, des, desMin, mtime, t1, code, desdir, codeMin, t2, e;
-    list = this.map(list);
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      ref$ = list[i$], src = ref$.src, des = ref$.des, desMin = ref$.desMin, mtime = ref$.mtime;
-      if (!fs.existsSync(src) || aux.newer(des, mtime)) {
-        continue;
-      }
-      try {
-        t1 = Date.now();
-        code = fs.readFileSync(src).toString();
-        desdir = path.dirname(des);
-        fsExtra.ensureDirSync(desdir);
-        code = livescript.compile(fs.readFileSync(src).toString(), {
-          bare: true,
-          header: false
-        });
-        codeMin = uglifyJs.minify(code).code;
-        fs.writeFileSync(des, code);
-        fs.writeFileSync(desMin, codeMin);
-        t2 = Date.now();
-        console.log("[BUILD] " + src + " --> " + des + " / " + desMin + " ( " + (t2 - t1) + "ms )");
-      } catch (e$) {
-        e = e$;
-        console.log(("[BUILD] " + src + " failed: ").red);
-        console.log(e.message.toString().red);
-      }
-    }
-  },
-  unlink: function(list){
-    var i$, len$, ref$, src, des, desMin, results$ = [];
-    list = this.map(list);
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      ref$ = list[i$], src = ref$.src, des = ref$.des, desMin = ref$.desMin;
-      if (fs.existsSync(des)) {
-        fs.unlinkSync(des);
-        console.log(("[BUILD] " + src + " --> " + des + " deleted.").yellow);
-      }
-      if (fs.existsSync(desMin)) {
-        fs.unlinkSync(desMin);
-        results$.push(console.log(("[BUILD] " + src + " --> " + desMin + " deleted.").yellow));
-      }
-    }
-    return results$;
-  }
-};
-module.exports = main;
\ No newline at end of file
diff --git a/bin/lib/build/pug.js b/bin/lib/build/pug.js
deleted file mode 100644
index ae718b5..0000000
--- a/bin/lib/build/pug.js
+++ /dev/null
@@ -1,232 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, path, fsExtra, pug, livescript, stylus, jsYaml, marked, aux, lc, mdOptions, resolve, pugExtapi, main;
-fs = require('fs');
-path = require('path');
-fsExtra = require('fs-extra');
-pug = require('pug');
-livescript = require('livescript');
-stylus = require('stylus');
-path = require('path');
-jsYaml = require('js-yaml');
-marked = require('marked');
-aux = require('./aux');
-lc = {
-  i18n: {}
-};
-mdOptions = {
-  html: {
-    breaks: true,
-    renderer: new marked.Renderer()
-  }
-};
-marked.setOptions(mdOptions.html);
-resolve = function(fn, src, opt){
-  var e;
-  if (!/^@/.exec(fn)) {
-    return /^\//.exec(fn)
-      ? path.resolve(path.join(opt.basedir, fn))
-      : path.resolve(path.join(path.dirname(src), fn));
-  }
-  try {
-    if (/^@\//.exec(fn)) {
-      return require.resolve(fn.replace(/^@\//, ""));
-    } else if (/^@static\//.exec(fn)) {
-      return path.resolve(path.join(path.dirname(src), fn.replace(/^@static/, '/../../static/')));
-    }
-  } catch (e$) {
-    e = e$;
-    throw new Error("no such file or directory: " + fn);
-  }
-};
-pugExtapi = {
-  plugins: [{
-    resolve: resolve
-  }],
-  filters: {
-    'lsc': function(text, opt){
-      return livescript.compile(text, {
-        bare: true,
-        header: false
-      });
-    },
-    'lson': function(text, opt){
-      return livescript.compile(text, {
-        bare: true,
-        header: false,
-        json: true
-      });
-    },
-    'stylus': function(text, opt){
-      return stylus(text).set('filename', 'inline').define('index', function(a, b){
-        a = (a.string || a.val).split(' ');
-        return new stylus.nodes.Unit(a.indexOf(b.val));
-      }).render();
-    },
-    'md': function(text, opt){
-      return marked(text);
-    }
-  },
-  md: marked,
-  yaml: function(it){
-    return jsYaml.safeLoad(fs.readFileSync(it));
-  },
-  yamls: function(dir){
-    var ret;
-    ret = fs.readdirSync(dir).map(function(it){
-      return dir + "/" + it;
-    }).filter(function(it){
-      return /\.yaml$/.exec(it);
-    }).map(function(it){
-      var e;
-      try {
-        return jsYaml.safeLoad(fs.readFileSync(it));
-      } catch (e$) {
-        e = e$;
-        return console.log("[ERROR@" + it + "]: ", e);
-      }
-    });
-    return ret;
-  }
-};
-main = {
-  opt: function(opt){
-    opt == null && (opt = {});
-    if (opt.i18n) {
-      pugExtapi.i18n = function(it){
-        return opt.i18n.t((it || '').trim());
-      };
-      pugExtapi.intlbase = function(p){
-        p == null && (p = "");
-        if (opt.i18n.language) {
-          return path.join("/intl", opt.i18n.language, p);
-        } else {
-          return p;
-        }
-      };
-      (pugExtapi.filters || (pugExtapi.filters = {})).i18n = function(t, o){
-        return opt.i18n.t((t || '').trim());
-      };
-      return lc.i18n = opt.i18n;
-    }
-  },
-  map: function(list){
-    return list.filter(function(it){
-      return /^src\/pug/.exec(it.file || it);
-    }).map(function(it){
-      return {
-        src: it.file || it,
-        des: path.normalize(it.file.replace(/^src\/pug/, "static/").replace(/\.pug$/, ".html")),
-        mtime: it.mtime || Date.now()
-      };
-    });
-  },
-  compile: function(src, opt){
-    var cwd;
-    opt == null && (opt = {});
-    cwd = path.resolve(process.cwd());
-    return pug.compile(fs.readFileSync(src).toString(), import$(import$({
-      filename: src,
-      basedir: path.join(cwd, 'src/pug/')
-    }, pugExtapi), opt));
-  },
-  build: function(list, causedBy){
-    var cwd, _, lngs, ref$, consume;
-    cwd = path.resolve(process.cwd());
-    list = this.map(list);
-    _ = function(lng){
-      var intl, p, that, ref$;
-      lng == null && (lng = '');
-      intl = lng ? path.join("intl", lng) : '';
-      p = lc.i18n.changeLanguage
-        ? lc.i18n.changeLanguage((that = lng)
-          ? that
-          : ((ref$ = lc.i18n).options || (ref$.options = {})).fallbackLng)
-        : Promise.resolve();
-      return p.then(function(){
-        var i$, ref$, len$, ref1$, src, des, mtime, desv, desh, code, t1, desvdir, ret, t2, desdir, e, results$ = [];
-        for (i$ = 0, len$ = (ref$ = list).length; i$ < len$; ++i$) {
-          ref1$ = ref$[i$], src = ref1$.src, des = ref1$.des, mtime = ref1$.mtime;
-          desv = des.replace('static/', path.join('.view', intl) + "/").replace(/\.html$/, '.js');
-          desh = des.replace('static/', path.join('static', intl) + "/");
-          if (!fs.existsSync(src) || aux.newer(desv, mtime)) {
-            continue;
-          }
-          code = fs.readFileSync(src).toString();
-          try {
-            t1 = Date.now();
-            if (/^\/\/- ?module ?/.exec(code)) {
-              continue;
-            }
-            if (fs.existsSync(src) && !aux.newer(desv, mtime)) {
-              desvdir = path.dirname(desv);
-              fsExtra.ensureDirSync(desvdir);
-              ret = pug.compileClient(code, import$({
-                filename: src,
-                basedir: path.join(cwd, 'src/pug/')
-              }, pugExtapi));
-              ret = " (function() { " + ret + "; module.exports = template; })() ";
-              fs.writeFileSync(desv, ret);
-              t2 = Date.now();
-              console.log("[BUILD] " + src + " --> " + desv + " ( " + (t2 - t1) + "ms )");
-            }
-            if (!/^\/\/- ?(view|module) ?/.exec(code)) {
-              desdir = path.dirname(desh);
-              fsExtra.ensureDirSync(desdir);
-              fs.writeFileSync(desh, pug.render(code, import$({
-                filename: src,
-                basedir: path.join(cwd, 'src/pug/')
-              }, pugExtapi)));
-              t2 = Date.now();
-              results$.push(console.log("[BUILD] " + src + " --> " + desh + " ( " + (t2 - t1) + "ms )"));
-            }
-          } catch (e$) {
-            e = e$;
-            console.log(("[BUILD] " + src + " failed: ").red);
-            results$.push(console.log(e.message.toString().red));
-          }
-        }
-        return results$;
-      });
-    };
-    lngs = [''].concat(((ref$ = lc.i18n).options || (ref$.options = {})).lng || []);
-    consume = function(i){
-      i == null && (i = 0);
-      if (i >= lngs.length) {
-        return;
-      }
-      return _(lngs[i]).then(function(){
-        return consume(i + 1);
-      });
-    };
-    consume();
-  },
-  unlink: function(list){
-    var i$, len$, ref$, src, des, e, results$ = [];
-    list = this.map(list);
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      ref$ = list[i$], src = ref$.src, des = ref$.des;
-      try {
-        if (fs.existsSync(des)) {
-          fs.unlinkSync(des);
-          console.log(("[BUILD] " + src + " --> " + des + " deleted.").yellow);
-        }
-        des = des.replace('static/', '.view/').replace(/\.html$/, '.js');
-        if (fs.existsSync(des)) {
-          fs.unlinkSync(des);
-          results$.push(console.log(("[BUILD] " + src + " --> " + des + " deleted.").yellow));
-        }
-      } catch (e$) {
-        e = e$;
-        results$.push(console.log(e));
-      }
-    }
-    return results$;
-  },
-  extapi: pugExtapi
-};
-module.exports = main;
-function import$(obj, src){
-  var own = {}.hasOwnProperty;
-  for (var key in src) if (own.call(src, key)) obj[key] = src[key];
-  return obj;
-}
\ No newline at end of file
diff --git a/bin/lib/build/stylus.js b/bin/lib/build/stylus.js
deleted file mode 100644
index 3717663..0000000
--- a/bin/lib/build/stylus.js
+++ /dev/null
@@ -1,81 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, fsExtra, stylus, path, uglifycss, aux, main;
-fs = require('fs');
-fsExtra = require('fs-extra');
-stylus = require('stylus');
-path = require('path');
-uglifycss = require('uglifycss');
-aux = require('./aux');
-main = {
-  map: function(list){
-    return list.filter(function(it){
-      return /^src\/styl/.exec(it.file || it);
-    }).map(function(it){
-      var src, mtime, des, desMin;
-      src = it.file || it;
-      mtime = it.mtime || Date.now();
-      des = path.normalize(src.replace(/^src\/styl/, "static/css/").replace(/\.styl/, ".css"));
-      desMin = des.replace(/\.css$/, '.min.css');
-      return {
-        src: src,
-        des: des,
-        desMin: desMin,
-        mtime: mtime
-      };
-    });
-  },
-  build: function(list, causedBy){
-    var i$, len$, ref$, src, des, desMin, mtime, t1, code, desdir, e;
-    list = this.map(list);
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      ref$ = list[i$], src = ref$.src, des = ref$.des, desMin = ref$.desMin, mtime = ref$.mtime;
-      if (!fs.existsSync(src) || aux.newer(des, mtime)) {
-        continue;
-      }
-      try {
-        t1 = Date.now();
-        code = fs.readFileSync(src).toString();
-        if (/^\/\/- ?(module) ?/.exec(code)) {
-          continue;
-        }
-        desdir = path.dirname(des);
-        fsExtra.ensureDirSync(desdir);
-        stylus(code).set('filename', src).render(fn$);
-      } catch (e$) {
-        e = e$;
-        console.log(("[BUILD] " + src + " failed: ").red);
-        console.log(e.message.toString().red);
-      }
-    }
-    function fn$(e, css){
-      var codeMin, t2;
-      if (e) {
-        throw e;
-      }
-      codeMin = uglifycss.processString(css, {
-        uglyComments: true
-      });
-      fs.writeFileSync(des, css);
-      fs.writeFileSync(desMin, codeMin);
-      t2 = Date.now();
-      return console.log("[BUILD] " + src + " --> " + des + " / " + desMin + " ( " + (t2 - t1) + "ms )");
-    }
-  },
-  unlink: function(list){
-    var i$, len$, ref$, src, des, desMin, results$ = [];
-    list = this.map(list);
-    for (i$ = 0, len$ = list.length; i$ < len$; ++i$) {
-      ref$ = list[i$], src = ref$.src, des = ref$.des, desMin = ref$.desMin;
-      if (fs.existsSync(des)) {
-        fs.unlinkSync(des);
-        console.log(("[BUILD] " + src + " --> " + des + " deleted.").yellow);
-      }
-      if (fs.existsSync(desMin)) {
-        fs.unlinkSync(desMin);
-        results$.push(console.log(("[BUILD] " + src + " --> " + desMin + " deleted.").yellow));
-      }
-    }
-    return results$;
-  }
-};
-module.exports = main;
\ No newline at end of file
diff --git a/bin/lib/index.js b/bin/lib/index.js
index 99b3821..74a661f 100644
--- a/bin/lib/index.js
+++ b/bin/lib/index.js
@@ -1,12 +1,10 @@
 // Generated by LiveScript 1.6.0
-var server, watch, view, pug;
+var server, view, pug;
 server = require('./server');
-watch = require('./watch');
 view = require('./view');
 pug = require('./build/pug');
 module.exports = {
   server: server,
-  watch: watch,
   view: view,
   pug: pug
 };
\ No newline at end of file
diff --git a/bin/lib/tree/DocTree.js b/bin/lib/tree/DocTree.js
deleted file mode 100644
index 545c7b8..0000000
--- a/bin/lib/tree/DocTree.js
+++ /dev/null
@@ -1,86 +0,0 @@
-// Generated by LiveScript 1.6.0
-var fs, path, cwd, DocTree;
-fs = require('fs');
-path = require('path');
-cwd = path.resolve(process.cwd());
-DocTree = function(opt){
-  opt == null && (opt = {});
-  this.opt = opt;
-  this.depend = {
-    by: {},
-    on: {}
-  };
-  this.root = opt.root || cwd;
-  this.type = opt.type;
-  if (opt.parser) {
-    this.parser = opt.parser;
-  }
-  return this;
-};
-DocTree.prototype = import$(Object.create(Object.prototype), {
-  setRoot: function(it){
-    return this.root = it;
-  },
-  parse: function(it){
-    var f, content, dir, ret, this$ = this;
-    f = it.file;
-    if (!fs.existsSync(f)) {
-      return [];
-    }
-    content = fs.readFileSync(f).toString();
-    dir = path.dirname(path.relative(this.root, f));
-    if (!this.parser) {
-      return;
-    }
-    this.depend.by[f] = ret = this.parser(content, f).map(function(it){
-      return path.join(this$.root, path.normalize(it[0] === '/'
-        ? it
-        : path.join(dir, it)));
-    });
-    ret.map(function(it){
-      var ref$;
-      return ((ref$ = this$.depend.on)[it] || (ref$[it] = [])).push(f);
-    });
-    return ret;
-  },
-  affect: function(list){
-    var ref$, ret, visited, f, k;
-    if (!Array.isArray(list)) {
-      list = [list];
-    }
-    ref$ = [{}, {}], ret = ref$[0], visited = ref$[1];
-    list.map(function(it){
-      return ret[it.file] = true;
-    });
-    while (list.length) {
-      f = path.normalize(path.relative(this.root, path.join(this.root, list.pop().file)));
-      if (!visited[f] && this.depend.on[f]) {
-        list = list.concat(this.depend.on[f].map(fn$));
-        this.depend.on[f].map(fn1$);
-      }
-      visited[f] = true;
-    }
-    return (function(){
-      var results$ = [];
-      for (k in ret) {
-        results$.push(k);
-      }
-      return results$;
-    }());
-    function fn$(it){
-      return {
-        file: it,
-        mtime: fs.statSync(it).mtime
-      };
-    }
-    function fn1$(it){
-      return ret[it] = true;
-    }
-  }
-});
-module.exports = DocTree;
-function import$(obj, src){
-  var own = {}.hasOwnProperty;
-  for (var key in src) if (own.call(src, key)) obj[key] = src[key];
-  return obj;
-}
\ No newline at end of file
diff --git a/bin/lib/tree/PugTree.js b/bin/lib/tree/PugTree.js
deleted file mode 100644
index d3f5907..0000000
--- a/bin/lib/tree/PugTree.js
+++ /dev/null
@@ -1,42 +0,0 @@
-// Generated by LiveScript 1.6.0
-var DocTree, pug, path, pugbuild, pugtree;
-DocTree = require('./DocTree');
-pug = require('pug');
-path = require('path');
-pugbuild = require("../build/pug");
-pugtree = new DocTree({
-  parser: function(c, f){
-    /* use pug dependencies tracking */
-    var cwd, ret, e;
-    cwd = path.resolve(path.join(process.cwd(), this.root));
-    try {
-      ret = pug.compileClientWithDependenciesTracked(c, import$({
-        basedir: path.join(cwd, path.dirname(f)),
-        filename: f
-      }, pugbuild.extapi));
-      return ret.dependencies.map(function(it){
-        return it.replace(cwd, '/../..');
-      });
-    } catch (e$) {
-      e = e$;
-      try {
-        return ret = c.split('\n').map(function(it){
-          return /\s*(extend|include)\s+(.+)$/.exec(it);
-        }).filter(function(it){
-          return it;
-        }).map(function(it){
-          return it[2];
-        });
-      } catch (e$) {
-        e = e$;
-        return [];
-      }
-    }
-  }
-});
-module.exports = pugtree;
-function import$(obj, src){
-  var own = {}.hasOwnProperty;
-  for (var key in src) if (own.call(src, key)) obj[key] = src[key];
-  return obj;
-}
\ No newline at end of file
diff --git a/bin/lib/tree/StylusTree.js b/bin/lib/tree/StylusTree.js
deleted file mode 100644
index 4235d00..0000000
--- a/bin/lib/tree/StylusTree.js
+++ /dev/null
@@ -1,19 +0,0 @@
-// Generated by LiveScript 1.6.0
-var DocTree, styl;
-DocTree = require('./DocTree');
-styl = new DocTree({
-  parser: function(c){
-    var ret;
-    ret = c.split('\n').map(function(it){
-      return /\s*(@import)\s+(.+)$/.exec(it);
-    }).filter(function(it){
-      return it;
-    }).map(function(it){
-      return it[2].replace(/'/g, '').replace(/(\.styl)?$/, '.styl');
-    }).map(function(it){
-      return it;
-    });
-    return ret;
-  }
-});
-module.exports = styl;
\ No newline at end of file
diff --git a/lib/build/aux.ls b/lib/build/aux.ls
deleted file mode 100644
index 4569030..0000000
--- a/lib/build/aux.ls
+++ /dev/null
@@ -1,16 +0,0 @@
-require! <[fs]>
-aux = do
-  newer: (f1, files = [], strict = false) ->
-    if !fs.exists-sync(f1) => return false
-    if typeof(files) == \number =>
-      mtime = files
-      return if strict => (fs.stat-sync(f1).mtime - mtime) > 0
-      else (fs.stat-sync(f1).mtime - mtime) >= 0
-    files = if Array.isArray(files) => files else [files]
-    return files.length == files
-      .filter (f2) ->
-        if strict => !fs.exists-sync(f2) or (fs.stat-sync(f1).mtime - fs.stat-sync(f2).mtime) > 0
-        else !fs.exists-sync(f2) or (fs.stat-sync(f1).mtime - fs.stat-sync(f2).mtime) >= 0
-      .length
-
-module.exports = aux
diff --git a/lib/build/bundle.ls b/lib/build/bundle.ls
deleted file mode 100644
index 560a3b7..0000000
--- a/lib/build/bundle.ls
+++ /dev/null
@@ -1,82 +0,0 @@
-require! <[fs fs-extra livescript stylus path colors uglify-js uglifycss ./aux @loadingio/debounce.js]>
-
-cwd = path.resolve process.cwd!
-
-bundle = {css: {}, js: {}}
-task = {css: {}, js: {}}
-bundle-file = "bundle.json"
-
-build = ({name, list, type}) ->
-  t1 = Date.now!
-  outdir = "static/#type/pack/"
-  outfile = path.join(outdir, "#name.#type")
-  outfilemin = path.join(outdir, "#name.min.#type")
-  Promise.resolve!
-    .then -> new Promise (res, rej) -> fs-extra.ensure-dir outdir, -> res!
-    .then ->
-      Promise.all [
-        Promise.all(list.map((f) -> new Promise (res, rej) ->
-          fs.read-file(f, (e,b) -> if e => rej e else res {name: f, code: b.toString!}))),
-        Promise.all(list.map((f) -> new Promise (res, rej) ->
-          fm = f.replace /\.(js|css)$/, '.min.$1'
-          (e,b) <- fs.read-file fm, _
-          if e => fs.read-file f,((e, b) -> if e => rej e else res {name: fm, code: b.toString!})
-          else res {name: f, code: b.toString!}
-        ))
-      ]
-    .then (ret) ->
-      normal = ret.0.map(->it.code).join('')
-      minified = ret.1
-        .map ({name,code}) ->
-          return if /\.min\./.exec(name) => code
-          else if type == \js => uglify-js.minify(code).code
-          else if type == \css => uglifycss.processString(code, uglyComments: true)
-          else code
-        .join('')
-      Promise.all [
-        new Promise (res, rej) -> fs.write-file outfile, normal, (e, b) -> res b
-        new Promise (res, rej) -> fs.write-file outfilemin, minified, (e, b) -> res b
-      ]
-    .then ->
-      return do
-        type: type, name: name
-        elapsed: Date.now! - t1
-        size: fs.stat-sync(outfile).size
-        size-min: fs.stat-sync(outfilemin).size
-
-batch = debounce 500, ->
-  promises = []
-  for type of task =>
-    for name of task[type] =>
-      out = "static/#type/pack/#name.#type"
-      # out file is not newer than watched files? rebuild!
-      if aux.newer(bundle-file, [out], true) or (task[type][name].length and !aux.newer(out, task[type][name])) =>
-        promises.push build({type, name, list: bundle[type][name]})
-  task := {css: {}, js: {}}
-  Promise.all promises
-    .then (list) ->
-      for info in list =>
-        {type,name,size,size-min,elapsed} = info
-        console.log "[BUILD] bundle static/#type/pack/#name.#type ( #size bytes / #{elapsed}ms )"
-        console.log "[BUILD] bundle static/#type/pack/#name.min.#type ( #size-min bytes / #{elapsed}ms )"
-
-
-main = do
-  map: (list) ->
-  build: (list) ->
-    if bundle-file in list =>
-      try
-        bundle := JSON.parse(fs.read-file-sync bundle-file .toString!)
-        for type of bundle => for n,l of bundle[type] => bundle[type][n] = l.map -> path.join(\static,it)
-      catch e
-        console.log e
-        return
-    for type of bundle =>
-      for n,l of bundle[type] =>
-        if !task[type][n] => task[type][n] = []
-        for file in list => if file in l => task[type][n].push file
-    batch!
-
-  unlink: (list) ->
-
-module.exports = main
diff --git a/lib/build/lsc.ls b/lib/build/lsc.ls
deleted file mode 100644
index e3a8793..0000000
--- a/lib/build/lsc.ls
+++ /dev/null
@@ -1,44 +0,0 @@
-require! <[fs fs-extra livescript path colors uglify-js ./aux]>
-
-main = do
-  map: (list) ->
-    list
-      .filter -> /^src\/ls/.exec(it.file or it)
-      .map (it) ->
-        src = it.file or it
-        mtime = it.mtime or Date.now!
-        des = path.normalize(src.replace(/^src\/ls/, "static/js/").replace(/\.ls/,".js"))
-        des-min = des.replace /\.js$/, '.min.js'
-        {src, des, des-min, mtime: mtime}
-  build: (list) ->
-    list = @map list
-    for {src,des, des-min,mtime} in list =>
-      if !fs.exists-sync(src) or aux.newer(des, mtime) => continue
-      try
-        t1 = Date.now!
-        code = fs.read-file-sync src .toString!
-        desdir = path.dirname(des)
-        fs-extra.ensure-dir-sync desdir
-        code = livescript.compile(fs.read-file-sync(src)toString!,{bare: true, header: false})
-        code-min = uglify-js.minify(code).code
-        fs.write-file-sync des, code
-        fs.write-file-sync des-min, code-min
-        t2 = Date.now!
-        console.log "[BUILD] #src --> #des / #des-min ( #{t2 - t1}ms )"
-      catch
-        console.log "[BUILD] #src failed: ".red
-        console.log e.message.toString!red
-    return
-  unlink: (list) ->
-    list = @map list
-    for {src,des,des-min} in list =>
-      if fs.exists-sync des =>
-        fs.unlink-sync des
-        console.log "[BUILD] #src --> #des deleted.".yellow
-      if fs.exists-sync des-min =>
-        fs.unlink-sync des-min
-        console.log "[BUILD] #src --> #des-min deleted.".yellow
-
-
-module.exports = main
-
diff --git a/lib/build/pug.ls b/lib/build/pug.ls
deleted file mode 100644
index 40eddc4..0000000
--- a/lib/build/pug.ls
+++ /dev/null
@@ -1,128 +0,0 @@
-require! <[fs path fs-extra pug livescript stylus path js-yaml marked ./aux]>
-
-lc = {i18n: {}}
-md-options = html: {breaks: true, renderer: new marked.Renderer!}
-marked.set-options md-options.html
-
-resolve = (fn,src,opt) ->
-  if !/^@/.exec(fn) =>
-    return if /^\//.exec(fn) => path.resolve(path.join(opt.basedir, fn))
-    else path.resolve(path.join(path.dirname(src),fn))
-  try
-    if /^@\//.exec(fn) =>
-      return require.resolve(fn.replace /^@\//, "")
-    else if /^@static\//.exec(fn) =>
-      return path.resolve(path.join(path.dirname(src), fn.replace(/^@static/,'/../../static/')))
-  catch e
-    throw new Error("no such file or directory: #fn")
-
-pug-extapi = do
-  plugins: [{resolve}]
-  filters: do
-    'lsc': (text, opt) -> return livescript.compile(text,{bare:true,header:false})
-    'lson': (text, opt) -> return livescript.compile(text,{bare:true,header:false,json:true})
-    'stylus': (text, opt) ->
-       stylus(text)
-         .set \filename, 'inline'
-         .define 'index', (a,b) ->
-           a = (a.string or a.val).split(' ')
-           return new stylus.nodes.Unit(a.indexOf b.val)
-         .render!
-    'md': (text, opt) -> marked text
-  md: marked
-  yaml: -> js-yaml.safe-load fs.read-file-sync it
-  yamls: (dir) ->
-    ret = fs.readdir-sync dir
-      .map -> "#dir/#it"
-      .filter -> /\.yaml$/.exec(it)
-      .map ->
-        try
-          js-yaml.safe-load(fs.read-file-sync it)
-        catch e
-          console.log "[ERROR@#it]: ", e
-    return ret
-
-main = do
-  opt: (opt = {}) ->
-    if opt.i18n =>
-      pug-extapi.i18n = -> opt.i18n.t((it or '').trim!)
-      pug-extapi.intlbase = (p = "") -> if opt.i18n.language => path.join("/intl",opt.i18n.language,p) else p
-      pug-extapi.{}filters.i18n = (t, o) -> opt.i18n.t((t or '').trim!)
-      lc.i18n = opt.i18n
-  map: (list) ->
-    list
-      .filter -> /^src\/pug/.exec(it.file or it)
-      .map -> do
-        src: it.file or it
-        des: path.normalize(it.file.replace(/^src\/pug/, "static/").replace(/\.pug$/,".html"))
-        mtime: it.mtime or Date.now!
-  # handy function to custom build quickly with the same configuration of server watcher.
-  compile: (src,opt = {}) ->
-    cwd = path.resolve process.cwd!
-    pug.compile(
-      fs.read-file-sync(src).toString!,
-      {filename: src, basedir: path.join(cwd, 'src/pug/')} <<< pug-extapi <<< opt
-    )
-  build: (list, caused-by) ->
-    cwd = path.resolve process.cwd!
-    list = @map list
-
-    _ = (lng = '') ->
-      intl = if lng => path.join("intl",lng) else ''
-      p = if lc.i18n.changeLanguage =>
-        lc.i18n.changeLanguage(if lng => that else lc.i18n.{}options.fallbackLng)
-      else Promise.resolve!
-      p.then ->
-        for {src,des,mtime} in list =>
-          desv = des.replace('static/', path.join('.view', intl) + "/").replace(/\.html$/, '.js')
-          desh = des.replace('static/', path.join('static', intl) + "/")
-          if !fs.exists-sync(src) or aux.newer(desv, mtime) => continue
-          code = fs.read-file-sync src .toString!
-          try
-            t1 = Date.now!
-            if /^\/\/- ?module ?/.exec(code) => continue
-
-            if fs.exists-sync(src) and !aux.newer(desv, mtime) =>
-              desvdir = path.dirname(desv)
-              fs-extra.ensure-dir-sync desvdir
-              ret = pug.compileClient code, {filename: src, basedir: path.join(cwd, 'src/pug/')} <<< pug-extapi
-              ret = """ (function() { #ret; module.exports = template; })() """
-              fs.write-file-sync desv, ret
-              t2 = Date.now!
-              console.log "[BUILD] #src --> #desv ( #{t2 - t1}ms )"
-            if !(/^\/\/- ?(view|module) ?/.exec(code)) =>
-              desdir = path.dirname(desh)
-              fs-extra.ensure-dir-sync desdir
-              fs.write-file-sync(
-                desh, pug.render code, {filename: src, basedir: path.join(cwd, 'src/pug/')} <<< pug-extapi
-              )
-              t2 = Date.now!
-              console.log "[BUILD] #src --> #desh ( #{t2 - t1}ms )"
-
-          catch
-            console.log "[BUILD] #src failed: ".red
-            console.log e.message.toString!red
-
-    lngs = ([''] ++ (lc.i18n.{}options.lng or []))
-    consume = (i=0) ->
-      if i >= lngs.length => return
-      _(lngs[i]).then -> consume(i+1)
-    consume!
-
-    return
-  unlink: (list) ->
-    list = @map list
-    for {src,des} in list =>
-      try
-        if fs.exists-sync des =>
-          fs.unlink-sync des
-          console.log "[BUILD] #src --> #des deleted.".yellow
-        des = des.replace('static/', '.view/').replace(/\.html$/, '.js')
-        if fs.exists-sync des =>
-          fs.unlink-sync des
-          console.log "[BUILD] #src --> #des deleted.".yellow
-      catch e
-        console.log e
-  extapi: pug-extapi
-
-module.exports = main
diff --git a/lib/build/stylus.ls b/lib/build/stylus.ls
deleted file mode 100644
index 50279e1..0000000
--- a/lib/build/stylus.ls
+++ /dev/null
@@ -1,46 +0,0 @@
-require! <[fs fs-extra stylus path uglifycss ./aux]>
-
-main = do
-  map: (list) ->
-    list
-      .filter -> /^src\/styl/.exec(it.file or it)
-      .map (it) ->
-        src = it.file or it
-        mtime = it.mtime or Date.now!
-        des = path.normalize(src.replace(/^src\/styl/, "static/css/").replace(/\.styl/,".css"))
-        des-min = des.replace /\.css$/, '.min.css'
-        {src, des, des-min, mtime: mtime }
-  build: (list, caused-by) ->
-    list = @map list
-    for {src,des,des-min,mtime} in list =>
-      if !fs.exists-sync(src) or aux.newer(des, mtime) => continue
-      try
-        t1 = Date.now!
-        code = fs.read-file-sync src .toString!
-        if /^\/\/- ?(module) ?/.exec(code) => continue
-        desdir = path.dirname(des)
-        fs-extra.ensure-dir-sync desdir
-        stylus code
-          .set \filename, src
-          .render (e, css) ->
-            if e => throw e
-            code-min = uglifycss.processString(css, uglyComments: true)
-            fs.write-file-sync des, css
-            fs.write-file-sync des-min, code-min
-            t2 = Date.now!
-            console.log "[BUILD] #src --> #des / #des-min ( #{t2 - t1}ms )"
-      catch
-        console.log "[BUILD] #src failed: ".red
-        console.log e.message.toString!red
-    return
-  unlink: (list) ->
-    list = @map list
-    for {src,des,des-min} in list =>
-      if fs.exists-sync des =>
-        fs.unlink-sync des
-        console.log "[BUILD] #src --> #des deleted.".yellow
-      if fs.exists-sync des-min =>
-        fs.unlink-sync des-min
-        console.log "[BUILD] #src --> #des-min deleted.".yellow
-
-module.exports = main
diff --git a/lib/index.ls b/lib/index.ls
index bb0ca8c..3d7dcdb 100644
--- a/lib/index.ls
+++ b/lib/index.ls
@@ -1,2 +1,2 @@
-require! <[./server ./watch ./view ./build/pug]>
-module.exports = {server, watch, view, pug}
+require! <[./server ./view ./build/pug]>
+module.exports = {server, view, pug}
diff --git a/lib/tree/DocTree.ls b/lib/tree/DocTree.ls
deleted file mode 100644
index 3a67edc..0000000
--- a/lib/tree/DocTree.ls
+++ /dev/null
@@ -1,36 +0,0 @@
-require! <[fs path]>
-
-cwd = path.resolve process.cwd!
-
-DocTree = (opt={})->
-  @ <<< opt: opt, depend: by: {}, on: {}
-  @ <<< root: opt.root or cwd, type: opt.type
-  if opt.parser => @parser = opt.parser
-  @
-
-DocTree.prototype = Object.create(Object.prototype) <<< do
-  set-root: -> @root = it
-  parse: (it) ->
-    f = it.file
-    if !fs.exists-sync(f) => return []
-    content = fs.read-file-sync f .toString!
-    dir = path.dirname path.relative(@root, f)
-    if !@parser => return
-    @depend.by[f] = ret = @parser content, f
-      .map ~> path.join(@root, path.normalize(if it.0 == \/ => it else path.join(dir, it)))
-    ret.map ~> @depend.on[][it].push f
-    ret
-
-  affect: (list) ->
-    if !Array.isArray(list) => list = [list]
-    [ret, visited] = [{}, {}]
-    list.map -> ret[it.file] = true
-    while list.length
-      f = path.normalize(path.relative @root, path.join(@root, list.pop!file))
-      if !visited[f] and @depend.on[f] =>
-        list ++= @depend.on[f].map -> {file: it, mtime: fs.stat-sync(it).mtime}
-        @depend.on[f].map -> ret[it] = true
-      visited[f] = true
-    return [k for k of ret]
-
-module.exports = DocTree
diff --git a/lib/tree/PugTree.ls b/lib/tree/PugTree.ls
deleted file mode 100644
index 9ea8a4c..0000000
--- a/lib/tree/PugTree.ls
+++ /dev/null
@@ -1,25 +0,0 @@
-require! <[./DocTree pug path]>
-pugbuild = require "../build/pug"
-
-pugtree = new DocTree do
-  parser: (c, f) ->
-    /* use pug dependencies tracking */
-    cwd = path.resolve path.join(process.cwd!, @root)
-    try
-      ret = pug.compileClientWithDependenciesTracked(
-        c,
-        {basedir: path.join(cwd,path.dirname f), filename: f} <<< pugbuild.extapi
-      )
-      return ret.dependencies.map(-> it.replace cwd, '/../..')
-    catch e
-      try
-        ret = c
-          .split \\n
-          .map -> /\s*(extend|include)\s+(.+)$/.exec(it)
-          .filter -> it
-          .map -> it.2
-      catch e
-        return []
-
-
-module.exports = pugtree
diff --git a/lib/tree/StylusTree.ls b/lib/tree/StylusTree.ls
deleted file mode 100644
index b44e6e0..0000000
--- a/lib/tree/StylusTree.ls
+++ /dev/null
@@ -1,13 +0,0 @@
-require! <[./DocTree]>
-
-styl = new DocTree do
-  parser: (c) ->
-    ret = c
-      .split \\n
-      .map -> /\s*(@import)\s+(.+)$/.exec(it)
-      .filter -> it
-      .map -> it.2.replace(/'/g, '').replace(/(\.styl)?$/, '.styl')
-      .map -> it
-    return ret
-
-module.exports = styl
diff --git a/server.ls b/server.ls
index 2f988e4..b2227bd 100644
--- a/server.ls
+++ b/server.ls
@@ -4,7 +4,6 @@ require! <[fs path yargs colors @plotdb/srcbuild]>
 lib = path.dirname fs.realpathSync __filename
 
 server = require "#lib/lib/server"
-watch = require "#lib/lib/watch"
 api = require "#lib/api/index"
 
 # legacy support. remove this in future version.