Add 'install' task to Jakefile and ignore conf.json

Also adding wrench for directory copy goodness and pointing to more up-to-date Jake information

.gitignore

@@ -1,3 +1,4 @@
 build-files/java/build
 jsdoc.jar
 test/tutorials/out
+conf.json

Jakefile.js

@@ -1,32 +1,73 @@
-// see: http://howtonode.org/intro-to-jake
+// see: https://github.com/mde/jake
 
 desc('Updating package.json revision.');
-task('default', [], function (params) {
-    var fs = require('fs'),
-        sys = require('sys');
-
+task('default', [], function(params) {
+    var fs = require('fs'), sys = require('sys');
+
     // import the Mustache template tool
     eval(fs.readFileSync('Jake/lib/mustache.js', 'utf8'));
-    
+
     var templates = {
-        packagejson: fs.readFileSync('Jake/templates/package.json.tmpl', 'utf8')
+        packagejson : fs.readFileSync('Jake/templates/package.json.tmpl', 'utf8')
     };
-    
+
     var metadata = {
-        appname: 'JSDoc',
-        appversion: '3.0.0alpha',
-        timestamp: ''+new Date().getTime()
+        appname : 'JSDoc',
+        appversion : '3.0.0alpha',
+        timestamp : '' + new Date().getTime()
     };
-    
+
     var outdir = './';
-
-    var rendered = Mustache.to_html(
-        templates.packagejson,
-        metadata
-    );
-
+
+    var rendered = Mustache.to_html(templates.packagejson, metadata);
+
     fs.writeFileSync(outdir + 'package.json', rendered, 'utf8');
-    
+
     process.exit(0);
-
+
+});
+
+desc('Installs a plugin/template.');
+task('install', [], function(loc) {
+    var fs = require('fs'), util = require('util'), path = require('path'), wrench = require('wrench/wrench');
+
+    if(!loc) {
+        fail("You must specify the location of the plugin/template.");
+    }
+
+    if(!path.existsSync(loc)) {
+        fail("plugin/template location [" + loc + "] is not valid.");
+    }
+
+    var pluginLoc = path.join(loc, "plugins"), templateLoc = path.join(loc, "templates"), jsdocLoc = process.cwd(), name, config;
+
+    //First the plugin
+    if(path.existsSync(pluginLoc)) {
+        //copy it over
+        wrench.copyDirSyncRecursive(pluginLoc, path.join(jsdocLoc, "plugins"), {
+            preserve : true
+        });
+        //find out what it's called
+        name = fs.readdirSync(pluginLoc)[0].replace(".js", "");
+        //And finally edit the conf.json
+        try {
+            config = JSON.parse(fs.readFileSync(path.join(jsdocLoc, 'conf.json'), 'utf8'));
+            if(config.plugins.indexOf('plugins/' + name) == -1) {
+                config.plugins.push('plugins/' + name);
+                fs.writeFileSync(path.join(jsdocLoc, 'conf.json'), JSON.stringify(config, null, "    "), 'utf8');
+            }
+        } catch (e) {
+            fail("Could not edit the conf.json file: " + e);
+        }
+    }
+
+    //Then the template
+    if(path.existsSync(pluginLoc)) {
+        wrench.copyDirSyncRecursive(templateLoc, path.join(jsdocLoc, "templates"), {
+            preserve : true
+        });
+    }
+
+    process.exit(0);
+
 });