[Plugin] prepare for auto install missing plugins.

* save existing plugins list.
* enhance `plugin` command output.

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

Author: skygragon

lib/cli.js

@@ -63,7 +63,8 @@ cli.run = function() {
   initIcon();
   initLogLevel();
 
-  Plugin.init(core);
+  if (Plugin.init(core))
+    Plugin.save();
 
   process.stdout.on('error', function(e) {
     if (e.code === 'EPIPE') process.exit();

lib/commands/plugin.js

@@ -1,6 +1,8 @@
 'use strict';
 var fs = require('fs');
 
+var sprintf = require('sprintf-js').sprintf;
+
 var h = require('../helper');
 var chalk = require('../chalk');
 var config = require('../config');
@@ -60,6 +62,17 @@ const cmd = {
   }
 };
 
+function printPlugins(plugins) {
+  log.info(chalk.gray(sprintf(' %6s  %-18s %-15s %s', 'Active', 'Name', 'Version', 'Desc')));
+  log.info(chalk.gray('-'.repeat(100)));
+
+  plugins = plugins || Plugin.plugins;
+  for (let p of plugins)
+    log.printf('   %s     %-18s %-15s %s',
+      h.prettyText('', p.enabled), p.name, p.ver, p.desc);
+  Plugin.save();
+}
+
 cmd.handler = function(argv) {
   session.argv = argv;
 
@@ -83,17 +96,18 @@ cmd.handler = function(argv) {
 
   if (argv.enable) {
     plugin.enable(true);
+    printPlugins();
   } else if (argv.disable) {
     plugin.enable(false);
+    printPlugins();
   } else if (argv.delete) {
     fs.unlink(fullpath, function(e) {
       if (e) log.error(e.message);
     });
   } else if (argv.config) {
     log.info(JSON.stringify(config.plugins[name] || {}, null, 2));
   } else {
-    for (let p of plugins)
-      log.printf('%s %-18s %-15s %s', h.prettyText('', p.enabled), p.name, p.ver, p.desc);
+    printPlugins(plugins);
   }
 };
 

lib/helper.js

@@ -53,6 +53,7 @@ const h = {};
 h.KEYS = {
   user:     '../user',
   stat:     '../stat',
+  plugins:  '../plugins',
   problems: 'problems',
   problem:  p => p.fid + '.' + p.slug + '.' + p.category
 };

lib/plugin.js

@@ -7,6 +7,7 @@ var _ = require('underscore');
 var request = require('request');
 
 var h = require('./helper');
+var cache = require('./cache');
 var config = require('./config');
 var log = require('./log');
 
@@ -95,6 +96,7 @@ Plugin.init = function(head) {
     last = p;
   }
   Plugin.plugins = plugins;
+  return true;
 };
 
 Plugin.copy = function(src, cb) {
@@ -138,4 +140,12 @@ Plugin.install = function(name, cb) {
   });
 };
 
+Plugin.save = function() {
+  const data = Plugin.plugins
+    .map(x => {
+      return {name: x.name, enabled: x.enabled}
+    });
+  cache.set(h.KEYS.plugins, data);
+};
+
 module.exports = Plugin;