#53 fecom link

Author: icefox0801

i18n/lang.yml

@@ -232,4 +232,32 @@ SEARCH_RESULTS:
 
 ERROR_INVALID_COMPONENT:
   en_US: "Invalid component: {0}"
-  zh_CN: "无效的组件: {0}"
+  zh_CN: "无效的组件: {0}"
+
+LINK_COMPONENT:
+  en_US: link component
+  zh_CN: 链接组件
+
+ERROR_NO_LINK_FOUND:
+  en_US: No link found for {0}
+  zh_CN: 未找到{0}的链接
+
+ERROR_NOT_VALID_COMPONENT_DIRECTORY:
+  en_US: Not a valid component directory
+  zh_CN: 不是有效的组件目录
+
+LINK_REGISTERED:
+  en_US: "Link registered: {0} -> {1}"
+  zh_CN: "注册链接: {0} -> {1}"
+
+ERROR_LINK_TARGET_NOT_EXIST:
+  en_US: Link target does not exist
+  zh_CN: 链接目标不存在
+
+LINKED_COMPONENT:
+  en_US: "Linked component: {0}"
+  zh_CN: "链接的组件: {0}"
+
+LINK_PATH_EXISTS:
+  en_US: Link path already exists
+  zh_CN: 链接路径已经存在

lib/cli.js

@@ -106,10 +106,25 @@ cli.run = function (env) {
       var info = require('./info');
       var args = [].slice.call(arguments);
       var options = args.pop();
-      var semList = args[0];
+      var semantic = args[0];
+      options = {};
+      // fecom.logger.info('Listing component versions...');
+      info(semantic, options);
+    });
+  /**
+   * Linking component
+   */
+  program
+    .command('link [component]')
+    .description(fecom.i18n('LINK_COMPONENT'))
+    .action(function () {
+      var link = require('./link');
+      var args = [].slice.call(arguments);
+      var options = args.pop();
+      var semantic = args[0];
       options = {};
       // fecom.logger.info('Listing component versions...');
-      info(semList, options);
+      link(semantic, options);
     });
   /**
    * Searching components

lib/link.js

@@ -0,0 +1,66 @@
+'use strict';
+
+var path = require('path');
+
+var _ = require('lodash');
+var fs = require('graceful-fs');
+var ini = require('ini');
+var jsonfile = require('jsonfile');
+var Promise = require('bluebird');
+
+var fecom = require('./fecom');
+
+function getUserHome() {
+  return process.env[('win32' === process.platform) ? 'USERPROFILE' : 'HOME'];
+}
+
+module.exports = function (semantic) {
+  var componentJson = path.join(fecom.root, 'component.json');
+  var profile = fecom.profile;
+  var profileFile = path.join(getUserHome(), '.fecomrc');
+  var linkMap = _.assign({}, profile.link);
+
+  return Promise
+    .try(function () {
+
+      if (!semantic) {
+
+        if (!fs.existsSync(componentJson)) {
+          throw new Error(fecom.i18n('ERROR_NOT_VALID_COMPONENT_DIRECTORY'));
+        }
+
+        var json = jsonfile.readFileSync(componentJson);
+        var componentName = json.name;
+        linkMap[componentName] = fecom.root;
+        profile.link = linkMap;
+        fs.writeFileSync(profileFile, ini.stringify(profile));
+        fecom.logger.info(fecom.i18n('LINK_REGISTERED', componentName.blue, fecom.root));
+      } else {
+        var parsed = fecom.parse(semantic);
+
+        if (!linkMap.hasOwnProperty(parsed.name) || !linkMap[parsed.name]) {
+          throw new Error(fecom.i18n('ERROR_NO_LINK_FOUND', parsed.name));
+        }
+
+        var target = linkMap[parsed.name];
+        var linkPath = path.join(fecom.componentRoot, parsed.name);
+
+        if (!fs.existsSync(target)) {
+          throw new Error(fecom.i18n('ERROR_LINK_TARGET_NOT_EXIST'));
+        }
+
+        if (!fs.existsSync(fecom.componentRoot)) {
+          fs.mkdirSync(fecom.componentRoot);
+        }
+
+        if (fs.existsSync(linkPath)) {
+          throw new Error(fecom.i18n('LINK_PATH_EXISTS'));
+        }
+
+        fs.symlinkSync(target, linkPath);
+        fecom.logger.info(fecom.i18n('LINKED_COMPONENT', parsed.name.blue));
+      }
+    })
+    .catch(fecom.errorHandler);
+
+};

lib/profile.js

@@ -36,7 +36,6 @@ module.exports = function (query, options) {
         }
 
         fs.writeFileSync(profileFile, ini.stringify(profile));
-
       }
 
       return profile;