Give access to previous version of static files though vcs app.

Author: plietar

coder-apps/common/vcs/app/app.js

@@ -1,6 +1,16 @@
+var pathutil = require('path');
+var fs = require('fs');
+var async = require('async');
+var Git = require('./git');
+var mime = require('mime');
+
+var isVersionned = function(app, callback) {
+    fs.fileExists(callback);
+};
 
 exports.get_routes = [
     { path:'/', handler:'index_handler' },
+    { path:/^\/view\/(\w+)\/([0-9a-f]+)\/static\/(.+)$/, handler: 'static_handler' }
 ];
 
 exports.post_routes = [
@@ -11,6 +21,38 @@ exports.index_handler = function( app, req, res ) {
     res.render( app.view() );
 };
 
+exports.static_handler = function( app, req, res, match ) {
+    var appname = match[1];
+    var rev = match[2];
+    var path = pathutil.resolve("/static", match[3]);
+
+    var repo;
+    async.waterfall([
+        coderlib.app.bind(null, appname),
+        function(app, callback) {
+            repo = new Git(app.rootPath);
+            repo.parseCommit(rev, callback);
+        },
+        function(commit, callback) {
+            repo.findBlob(commit.tree, path, callback);
+        },
+        function(blob, callback) {
+            repo.cat_file(blob.object, blob.type, callback);
+        }
+    ], function(err, data) {
+        if (err)
+        {
+            console.log(err);
+            res.send(404);
+        }
+        else
+        {
+            res.setHeader("Content-Type", mime.lookup(path));
+            res.send(data);
+        }
+    });
+};
+
 exports.on_destroy = function() {
 };
 

coder-apps/common/vcs/app/meta.json

@@ -0,0 +1,10 @@
+{
+    "created": "2014-03-21",
+    "modified": "2014-03-21",
+    "color": "#80d4ea",
+    "author": "Paul Lietar",
+    "name": "VCS",
+    "hidden": true,
+    "public": false    
+}
+

coder-base/package.json

@@ -17,6 +17,7 @@
         "ncp": "0.5.*",
         "tmp": "0.0.23",
         "rimraf": "~2.2.6",
-        "byline": "~4.1.1"
+        "byline": "~4.1.1",
+        "mime": "~1.2.11"
     }
 }