Normalize errors

1 files changed, 52 insertions, 1 deletions

diff --git a/lib/utils/error.js b/lib/utils/error.js
index 66e20db..4ccf83d 100644
--- a/lib/utils/error.js
+++ b/lib/utils/error.js
@@ -1,4 +1,6 @@
 var _ = require('lodash');
+var TypedError = require('error/typed');
+var WrappedError = require('error/wrapped');
 
 // Enforce as an Error object, and cleanup message
 function enforce(err) {
@@ -8,6 +10,55 @@ function enforce(err) {
     return err;
 }
 
+// Random error wrappers during parsing/generation
+var ParsingError = WrappedError({
+    message: 'Parsing Error: {origMessage}',
+    type: 'server.parsing-failed'
+});
+var GenerationError = WrappedError({
+    message: 'Generation Error: {origMessage}',
+    type: 'server.parsing-failed'
+});
+
+// Error when output generator does not exists
+var GeneratorNotFoundError = TypedError({
+    type: 'server.404',
+    message: 'Generator "{generator}" does not exists',
+    generator: null
+});
+
+// A file does not exists
+var FileNotFoundError = TypedError({
+    type: 'server.404',
+    message: 'No "{filename}" file (or is ignored)',
+    filename: null
+});
+
+// A file is outside the scope
+var FileOutOfScopeError = TypedError({
+    type: 'server.404',
+    message: '"{filename}" not in "{root}"',
+    filename: null,
+    root: null,
+    code: 'EACCESS'
+});
+
+// Error for nunjucks templates
+var TemplateError = WrappedError({
+    message: 'Error compiling template "{filename}": {origMessage}',
+    type: 'client.template-failed',
+    filename: null
+});
+
 module.exports = {
-    enforce: enforce
+    enforce: enforce,
+
+    ParsingError: ParsingError,
+    GenerationError: GenerationError,
+
+    FileNotFoundError: FileNotFoundError,
+    FileOutOfScopeError: FileOutOfScopeError,
+
+    GeneratorNotFoundError: GeneratorNotFoundError,
+    TemplateError: TemplateError
 };