1 files changed, 13 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/shapes/File.js b/packages/gitbook-core/src/shapes/File.js
new file mode 100644
index 0000000..cff2219
--- /dev/null
+++ b/packages/gitbook-core/src/shapes/File.js
@@ -0,0 +1,13 @@
+const React  = require('react');
+const {
+    oneOf,
+    string,
+    shape
+} = React.PropTypes;
+
+
+module.exports = shape({
+    mtime: string.isRequired,
+    path:  string.isRequired,
+    type:  oneOf(['markdown', 'asciidoc']).isRequired
+});