[Plugin] add plugin command.

Signed-off-by: Eric Wang <skygragon@gmail.com>

Author: skygragon

lib/commands/plugin.js

@@ -0,0 +1,66 @@
+var fs = require('fs');
+var path = require('path');
+
+var _ = require('underscore');
+var sprintf = require('sprintf-js').sprintf;
+
+var h = require('../helper');
+var log = require('../log');
+var Plugin = require('../plugin');
+
+var cmd = {
+  command: 'plugin [name]>',
+  desc:    'show plugins',
+  builder: {
+    install: {
+      alias:    'i',
+      type:     'boolean',
+      describe: 'Install plugin',
+      default:  false
+    },
+    delete: {
+      alias:    'd',
+      type:     'boolean',
+      describe: 'Delete plugin',
+      default:  false
+    }
+  }
+};
+
+cmd.handler = function(argv) {
+  var name = argv.name;
+
+  if (argv.install) {
+    if (!name || !fs.existsSync(name))
+      return log.error('Plugin not found!');
+
+    var newName = path.resolve(__dirname, '../plugins/' + path.basename(name));
+    fs.createReadStream(name).pipe(fs.createWriteStream(newName));
+    return;
+  }
+
+  if (argv.delete) {
+    var f = _.find(h.getDirData(['lib', 'plugins']), function(f) {
+      return f.data !== null && f.data.name === name;
+    });
+    if (!f) return log.error('Plugin not found!');
+
+    var fullpath = path.resolve(__dirname, '../plugins/' + f.name + '.js');
+    fs.unlink(fullpath, function(e) {
+      if (e) log.error(e.message);
+    });
+    return;
+  }
+
+  var plugins = Plugin.plugins;
+  if (name) {
+    plugins = plugins.filter(function(p) {
+      return p.name === name;
+    });
+  }
+  plugins.forEach(function(p) {
+    log.info(sprintf('%-20s %-15s %s', p.name, p.ver, p.desc));
+  });
+};
+
+module.exports = cmd;

lib/commands/version.js

@@ -65,7 +65,7 @@ cmd.handler = function(argv) {
 
   log.info('\n[Plugins]');
   _.each(Plugin.plugins, function(p, k) {
-    prettyLine(p.name, 'v' + p.ver);
+    prettyLine(p.name, p.ver);
   });
 };
 

lib/plugin.js

@@ -6,7 +6,7 @@ var log = require('./log');
 function Plugin(id, name, ver, desc) {
   this.id = id;
   this.name = name;
-  this.ver = ver;
+  this.ver = ver || 'default';
   this.desc = desc;
   this.next = null;
 }

lib/plugins/cache.js

@@ -6,7 +6,7 @@ var log = require('../log');
 var Plugin = require('../plugin');
 var session = require('../session');
 
-var plugin = new Plugin(20, 'Cache', '2017.07.24', 'Plugin to provide local cache.');
+var plugin = new Plugin(20, 'cache', '', 'Plugin to provide local cache.');
 
 plugin.init = function() {
   cache.init();

lib/plugins/leetcode.js

@@ -10,7 +10,7 @@ var Plugin = require('../plugin');
 var queue = require('../queue');
 var session = require('../session');
 
-var plugin = new Plugin(10, 'Leetcode Client', '2017.07.24',
+var plugin = new Plugin(10, 'leetcode', '',
     'Plugin to talk with leetcode APIs.');
 
 // update options with user credentials

lib/plugins/retry.js

@@ -3,7 +3,7 @@ var log = require('../log');
 var Plugin = require('../plugin');
 var session = require('../session');
 
-var plugin = new Plugin(30, 'Retry', '2017.07.24',
+var plugin = new Plugin(30, 'retry', '',
     'Plugin to retry last failed request if AUTO_LOGIN is on.');
 
 var count = {};