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m---------waflib0
-rw-r--r--waflib/extras/why.py78
2 files changed, 0 insertions, 78 deletions
diff --git a/waflib b/waflib
new file mode 160000
+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/extras/why.py b/waflib/extras/why.py
deleted file mode 100644
index 1bb941f..0000000
--- a/waflib/extras/why.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#! /usr/bin/env python
-# encoding: utf-8
-# Thomas Nagy, 2010 (ita)
-
-"""
-This tool modifies the task signature scheme to store and obtain
-information about the task execution (why it must run, etc)::
-
- def configure(conf):
- conf.load('why')
-
-After adding the tool, a full rebuild is necessary:
-waf clean build --zones=task
-"""
-
-from waflib import Task, Utils, Logs, Errors
-
-def signature(self):
- # compute the result one time, and suppose the scan_signature will give the good result
- try:
- return self.cache_sig
- except AttributeError:
- pass
-
- self.m = Utils.md5()
- self.m.update(self.hcode)
- id_sig = self.m.digest()
-
- # explicit deps
- self.m = Utils.md5()
- self.sig_explicit_deps()
- exp_sig = self.m.digest()
-
- # env vars
- self.m = Utils.md5()
- self.sig_vars()
- var_sig = self.m.digest()
-
- # implicit deps / scanner results
- self.m = Utils.md5()
- if self.scan:
- try:
- self.sig_implicit_deps()
- except Errors.TaskRescan:
- return self.signature()
- impl_sig = self.m.digest()
-
- ret = self.cache_sig = impl_sig + id_sig + exp_sig + var_sig
- return ret
-
-
-Task.Task.signature = signature
-
-old = Task.Task.runnable_status
-def runnable_status(self):
- ret = old(self)
- if ret == Task.RUN_ME:
- try:
- old_sigs = self.generator.bld.task_sigs[self.uid()]
- except (KeyError, AttributeError):
- Logs.debug("task: task must run as no previous signature exists")
- else:
- new_sigs = self.cache_sig
- def v(x):
- return Utils.to_hex(x)
-
- Logs.debug('Task %r', self)
- msgs = ['* Implicit or scanner dependency', '* Task code', '* Source file, explicit or manual dependency', '* Configuration data variable']
- tmp = 'task: -> %s: %s %s'
- for x in range(len(msgs)):
- l = len(Utils.SIG_NIL)
- a = new_sigs[x*l : (x+1)*l]
- b = old_sigs[x*l : (x+1)*l]
- if (a != b):
- Logs.debug(tmp, msgs[x].ljust(35), v(a), v(b))
- return ret
-Task.Task.runnable_status = runnable_status
-