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authorDavid Robillard <d@drobilla.net>2018-09-22 10:24:26 +0200
committerDavid Robillard <d@drobilla.net>2018-09-22 10:24:26 +0200
commitdb4fa08d4da3cc840e6f97e6869a877f2b4c9474 (patch)
tree956538ded0be74ac6588f4cc6a963900eb8159ff /Errors.py
downloadlv2-db4fa08d4da3cc840e6f97e6869a877f2b4c9474.tar.xz
Squashed 'waflib/' content from commit 6e726eb
git-subtree-dir: waflib git-subtree-split: 6e726eb11d3e21be410549d27dd1aa94678f3d09
Diffstat (limited to 'Errors.py')
-rw-r--r--Errors.py68
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+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2010-2018 (ita)
+
+"""
+Exceptions used in the Waf code
+"""
+
+import traceback, sys
+
+class WafError(Exception):
+ """Base class for all Waf errors"""
+ def __init__(self, msg='', ex=None):
+ """
+ :param msg: error message
+ :type msg: string
+ :param ex: exception causing this error (optional)
+ :type ex: exception
+ """
+ Exception.__init__(self)
+ self.msg = msg
+ assert not isinstance(msg, Exception)
+
+ self.stack = []
+ if ex:
+ if not msg:
+ self.msg = str(ex)
+ if isinstance(ex, WafError):
+ self.stack = ex.stack
+ else:
+ self.stack = traceback.extract_tb(sys.exc_info()[2])
+ self.stack += traceback.extract_stack()[:-1]
+ self.verbose_msg = ''.join(traceback.format_list(self.stack))
+
+ def __str__(self):
+ return str(self.msg)
+
+class BuildError(WafError):
+ """Error raised during the build and install phases"""
+ def __init__(self, error_tasks=[]):
+ """
+ :param error_tasks: tasks that could not complete normally
+ :type error_tasks: list of task objects
+ """
+ self.tasks = error_tasks
+ WafError.__init__(self, self.format_error())
+
+ def format_error(self):
+ """Formats the error messages from the tasks that failed"""
+ lst = ['Build failed']
+ for tsk in self.tasks:
+ txt = tsk.format_error()
+ if txt:
+ lst.append(txt)
+ return '\n'.join(lst)
+
+class ConfigurationError(WafError):
+ """Configuration exception raised in particular by :py:meth:`waflib.Context.Context.fatal`"""
+ pass
+
+class TaskRescan(WafError):
+ """Task-specific exception type signalling required signature recalculations"""
+ pass
+
+class TaskNotReady(WafError):
+ """Task-specific exception type signalling that task signatures cannot be computed"""
+ pass
+