From 8b5742dd8b3d6e437703ca02553804ce7cc9d53d Mon Sep 17 00:00:00 2001
From: Tristan Van Berkom <tristan.vanberkom@codethink.co.uk>
Date: Mon, 2 Apr 2018 19:53:59 +0900
Subject: _exceptions.py: Adding new AppError exception and error domain

---
 buildstream/_exceptions.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/buildstream/_exceptions.py b/buildstream/_exceptions.py
index fb42d9fd2..27045bece 100644
--- a/buildstream/_exceptions.py
+++ b/buildstream/_exceptions.py
@@ -70,6 +70,7 @@ class ErrorDomain(Enum):
     PROG_NOT_FOUND = 12
     SOURCE = 10
     ELEMENT = 11
+    APP = 12
 
 
 # BstError is an internal base exception class for BuildSream
@@ -231,3 +232,12 @@ class PipelineError(BstError):
         super().__init__(message, detail=detail, domain=ErrorDomain.PIPELINE, reason=reason)
 
         self.terminated = terminated
+
+
+# AppError
+#
+# Raised from the frontend App directly
+#
+class AppError(BstError):
+    def __init__(self, message, detail=None, reason=None):
+        super().__init__(message, detail=detail, domain=ErrorDomain.APP, reason=reason)
-- 
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