1 files changed, 72 insertions, 0 deletions
diff --git a/lib/generate/manifest.js b/lib/generate/manifest.js
new file mode 100644
index 0000000..8bb826a
--- /dev/null
+++ b/lib/generate/manifest.js
@@ -0,0 +1,72 @@
+var _ = require('lodash');
+var path = require('path');
+var Q = require('q');
+
+var fs = require("./fs");
+
+var extsToIgnore = [".gz"]
+
+var Manifest = function() {
+    this.revision = 0;
+    this.clear(Date.now());
+};
+
+// Regenerate manifest
+Manifest.prototype.clear = function(revision) {
+    if (revision) this.revision = revision;
+    this.sections = {
+        'CACHE': {},
+        'NETWORK': {},
+        'FALLBACK': {}
+    };
+    return Q(this);
+};
+
+// Add a resource
+Manifest.prototype.add = function(category, resource, value) {
+    if (_.isArray(resource)) {
+        _.each(resource, function(subres) {
+            this.add(category, subres, value);
+        }, this);
+        return;
+    }
+    this.sections[category][resource] = value;
+};
+
+// Add a directory in cache
+Manifest.prototype.addFolder = function(folder, root, except) {
+    var that = this;
+    root = root || "/";
+
+    return fs.list(folder)
+    .then(function(files) {
+        _.each(
+            // Ignore diretcories
+            _.filter(files, function(file) {
+                return file.substr(-1) != "/" && !_.contains(except, path.join(root, file)) && !_.contains(extsToIgnore, path.extname(file));
+            }),
+            function(file) {
+                that.add("CACHE", path.join(root, file));
+            }
+        );
+    })
+};
+
+// Get manifest content
+Manifest.prototype.dump = function() {
+    var lines = [
+        "CACHE MANIFEST",
+        "# Revision "+this.revision
+    ];
+
+    _.each(this.sections, function(content, section) {
+        if (_.size(content) == 0) return;
+        lines.push("");
+        lines.push(section+":");
+        lines = lines.concat(_.keys(content));
+    }, this);
+
+    return Q(lines.join("\n"));
+};
+
+module.exports = Manifest;