Squashed 'waflib/' changes from d7a7ca4..27a69a7

27a69a7 Add option to filter tests by regular expression
ac29b74 Fix configuring with root prefix
6134be6 Print test coverage summary
6d7dd59 Don't attempt to clear coverage when coverage is disabled
cddbcb5 Pass file comparison test if difflib finds no changes
6e4e92b Seek to end before checking the size of stderr output
e7a29b6 Upgrade to waf 2.0.15
8280f9d Add command for running executables from the build directory
8073c1a Make make_simple_dox() safe in case of exception
70d03b8 Avoid use of global counter hacks for configuration display
b7d689a Rewrite test framework
94deadf Automatically add options and move add_flags() to options context
f4259ee Reduce system include path noise
927b608 Automatically display configuration header
c44b8f3 Set line justification from a constant in the wscript
a48e26f Automatically detect if wscript has a test hook
ef66724 Save runtime variables in the environment
63bcbcd Clean up TestContext
b1d9505 Add ExecutionContext for setting runtime environment
387c1df Add show_diff() and test_file_equals() utilities
29d4d29 Fix in-tree library paths
9fde01f Add custom configuration context
6d3612f Add lib_path_name constant
915dcb1 Report test time correctly
26f0a2b Remove redundant verbose-tests option
fc35c2c Fix MSVC CFLAGS
5ea8f99 Improve test output spacing
0e23b29 Raise exception when test suite fails to ensure non-zero exit status
d6de073 Show run time of unit tests
5b65554 Add short configure option for ultra-strict flags
4687ba6 Use gtest-like test output
258903d Fix failure count in test group summaries
da07e73 Fix verbose tests with Python 3
6e726eb Add support for suppressing warnings from system libraries
3e43d09 Add short forms for common options
5db477c Automatically define version for child libraries
982416b Fix version definition for projects with special characters
9eb0cf8 Remove blank line padding around configuration summary

git-subtree-dir: waflib
git-subtree-split: 27a69a76d1f625ad86b60b5dbd12368bc25cae25

1 files changed, 35 insertions, 23 deletions

diff --git a/Task.py b/Task.py
index 0fc449d..cb49a73 100644
--- a/Task.py
+++ b/Task.py
@@ -50,6 +50,9 @@ def f(tsk):
 	bld = gen.bld
 	cwdx = tsk.get_cwd()
 	p = env.get_flat
+	def to_list(xx):
+		if isinstance(xx, str): return [xx]
+		return xx
 	tsk.last_cmd = cmd = \'\'\' %s \'\'\' % s
 	return tsk.exec_command(cmd, cwd=cwdx, env=env.env or None)
 '''
@@ -77,7 +80,8 @@ def f(tsk):
 
 COMPILE_TEMPLATE_SIG_VARS = '''
 def f(tsk):
-	super(tsk.__class__, tsk).sig_vars()
+	sig = tsk.generator.bld.hash_env_vars(tsk.env, tsk.vars)
+	tsk.m.update(sig)
 	env = tsk.env
 	gen = tsk.generator
 	bld = gen.bld
@@ -159,10 +163,10 @@ class Task(evil):
 	"""File extensions that objects of this task class may create"""
 
 	before = []
-	"""List of task class names to execute before instances of this class"""
+	"""The instances of this class are executed before the instances of classes whose names are in this list"""
 
 	after = []
-	"""List of task class names to execute after instances of this class"""
+	"""The instances of this class are executed after the instances of classes whose names are in this list"""
 
 	hcode = Utils.SIG_NIL
 	"""String representing an additional hash for the class representation"""
@@ -302,25 +306,31 @@ class Task(evil):
 		if hasattr(self, 'stderr'):
 			kw['stderr'] = self.stderr
 
-		# workaround for command line length limit:
-		# http://support.microsoft.com/kb/830473
-		if not isinstance(cmd, str) and (len(repr(cmd)) >= 8192 if Utils.is_win32 else len(cmd) > 200000):
-			cmd, args = self.split_argfile(cmd)
-			try:
-				(fd, tmp) = tempfile.mkstemp()
-				os.write(fd, '\r\n'.join(args).encode())
-				os.close(fd)
-				if Logs.verbose:
-					Logs.debug('argfile: @%r -> %r', tmp, args)
-				return self.generator.bld.exec_command(cmd + ['@' + tmp], **kw)
-			finally:
+		if not isinstance(cmd, str):
+			if Utils.is_win32:
+				# win32 compares the resulting length http://support.microsoft.com/kb/830473
+				too_long = sum([len(arg) for arg in cmd]) + len(cmd) > 8192
+			else:
+				# non-win32 counts the amount of arguments (200k)
+				too_long = len(cmd) > 200000
+
+			if too_long and getattr(self, 'allow_argsfile', True):
+				# Shunt arguments to a temporary file if the command is too long.
+				cmd, args = self.split_argfile(cmd)
 				try:
-					os.remove(tmp)
-				except OSError:
-					# anti-virus and indexers can keep files open -_-
-					pass
-		else:
-			return self.generator.bld.exec_command(cmd, **kw)
+					(fd, tmp) = tempfile.mkstemp()
+					os.write(fd, '\r\n'.join(args).encode())
+					os.close(fd)
+					if Logs.verbose:
+						Logs.debug('argfile: @%r -> %r', tmp, args)
+					return self.generator.bld.exec_command(cmd + ['@' + tmp], **kw)
+				finally:
+					try:
+						os.remove(tmp)
+					except OSError:
+						# anti-virus and indexers can keep files open -_-
+						pass
+		return self.generator.bld.exec_command(cmd, **kw)
 
 	def process(self):
 		"""
@@ -776,6 +786,8 @@ class Task(evil):
 		Used by :py:meth:`waflib.Task.Task.signature`; it hashes :py:attr:`waflib.Task.Task.env` variables/values
 		When overriding this method, and if scriptlet expressions are used, make sure to follow
 		the code in :py:meth:`waflib.Task.Task.compile_sig_vars` to enable dependencies on scriptlet results.
+
+		This method may be replaced on subclasses by the metaclass to force dependencies on scriptlet code.
 		"""
 		sig = self.generator.bld.hash_env_vars(self.env, self.vars)
 		self.m.update(sig)
@@ -1038,7 +1050,7 @@ def funex(c):
 	exec(c, dc)
 	return dc['f']
 
-re_cond = re.compile('(?P<var>\w+)|(?P<or>\|)|(?P<and>&)')
+re_cond = re.compile(r'(?P<var>\w+)|(?P<or>\|)|(?P<and>&)')
 re_novar = re.compile(r'^(SRC|TGT)\W+.*?$')
 reg_act = re.compile(r'(?P<backslash>\\)|(?P<dollar>\$\$)|(?P<subst>\$\{(?P<var>\w+)(?P<code>.*?)\})', re.M)
 def compile_fun_shell(line):
@@ -1193,7 +1205,7 @@ def compile_fun_noshell(line):
 					# plain code such as ${tsk.inputs[0].abspath()}
 					call = '%s%s' % (var, code)
 					add_dvar(call)
-					app('gen.to_list(%s)' % call)
+					app('to_list(%s)' % call)
 			else:
 				# a plain variable such as # a plain variable like ${AR}
 				app('to_list(env[%r])' % var)