Merge commit 'b6e9de2de9725e2f5a3170b8171ad1a1e95e8339' as 'waflib'

1 files changed, 614 insertions, 0 deletions

diff --git a/waflib/Scripting.py b/waflib/Scripting.py
new file mode 100644
index 0000000..749d4f2
--- /dev/null
+++ b/waflib/Scripting.py
@@ -0,0 +1,614 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2005-2018 (ita)
+
+"Module called for configuring, compiling and installing targets"
+
+from __future__ import with_statement
+
+import os, shlex, shutil, traceback, errno, sys, stat
+from waflib import Utils, Configure, Logs, Options, ConfigSet, Context, Errors, Build, Node
+
+build_dir_override = None
+
+no_climb_commands = ['configure']
+
+default_cmd = "build"
+
+def waf_entry_point(current_directory, version, wafdir):
+	"""
+	This is the main entry point, all Waf execution starts here.
+
+	:param current_directory: absolute path representing the current directory
+	:type current_directory: string
+	:param version: version number
+	:type version: string
+	:param wafdir: absolute path representing the directory of the waf library
+	:type wafdir: string
+	"""
+	Logs.init_log()
+
+	if Context.WAFVERSION != version:
+		Logs.error('Waf script %r and library %r do not match (directory %r)', version, Context.WAFVERSION, wafdir)
+		sys.exit(1)
+
+	# Store current directory before any chdir
+	Context.waf_dir = wafdir
+	Context.run_dir = Context.launch_dir = current_directory
+	start_dir = current_directory
+	no_climb = os.environ.get('NOCLIMB')
+
+	if len(sys.argv) > 1:
+		# os.path.join handles absolute paths
+		# if sys.argv[1] is not an absolute path, then it is relative to the current working directory
+		potential_wscript = os.path.join(current_directory, sys.argv[1])
+		if os.path.basename(potential_wscript) == Context.WSCRIPT_FILE and os.path.isfile(potential_wscript):
+			# need to explicitly normalize the path, as it may contain extra '/.'
+			path = os.path.normpath(os.path.dirname(potential_wscript))
+			start_dir = os.path.abspath(path)
+			no_climb = True
+			sys.argv.pop(1)
+
+	ctx = Context.create_context('options')
+	(options, commands, env) = ctx.parse_cmd_args(allow_unknown=True)
+	if options.top:
+		start_dir = Context.run_dir = Context.top_dir = options.top
+		no_climb = True
+	if options.out:
+		Context.out_dir = options.out
+
+	# if 'configure' is in the commands, do not search any further
+	if not no_climb:
+		for k in no_climb_commands:
+			for y in commands:
+				if y.startswith(k):
+					no_climb = True
+					break
+
+	# try to find a lock file (if the project was configured)
+	# at the same time, store the first wscript file seen
+	cur = start_dir
+	while cur:
+		try:
+			lst = os.listdir(cur)
+		except OSError:
+			lst = []
+			Logs.error('Directory %r is unreadable!', cur)
+		if Options.lockfile in lst:
+			env = ConfigSet.ConfigSet()
+			try:
+				env.load(os.path.join(cur, Options.lockfile))
+				ino = os.stat(cur)[stat.ST_INO]
+			except EnvironmentError:
+				pass
+			else:
+				# check if the folder was not moved
+				for x in (env.run_dir, env.top_dir, env.out_dir):
+					if not x:
+						continue
+					if Utils.is_win32:
+						if cur == x:
+							load = True
+							break
+					else:
+						# if the filesystem features symlinks, compare the inode numbers
+						try:
+							ino2 = os.stat(x)[stat.ST_INO]
+						except OSError:
+							pass
+						else:
+							if ino == ino2:
+								load = True
+								break
+				else:
+					Logs.warn('invalid lock file in %s', cur)
+					load = False
+
+				if load:
+					Context.run_dir = env.run_dir
+					Context.top_dir = env.top_dir
+					Context.out_dir = env.out_dir
+					break
+
+		if not Context.run_dir:
+			if Context.WSCRIPT_FILE in lst:
+				Context.run_dir = cur
+
+		next = os.path.dirname(cur)
+		if next == cur:
+			break
+		cur = next
+
+		if no_climb:
+			break
+
+	wscript = os.path.normpath(os.path.join(Context.run_dir, Context.WSCRIPT_FILE))
+	if not os.path.exists(wscript):
+		if options.whelp:
+			Logs.warn('These are the generic options (no wscript/project found)')
+			ctx.parser.print_help()
+			sys.exit(0)
+		Logs.error('Waf: Run from a folder containing a %r file (or try -h for the generic options)', Context.WSCRIPT_FILE)
+		sys.exit(1)
+
+	try:
+		os.chdir(Context.run_dir)
+	except OSError:
+		Logs.error('Waf: The folder %r is unreadable', Context.run_dir)
+		sys.exit(1)
+
+	try:
+		set_main_module(wscript)
+	except Errors.WafError as e:
+		Logs.pprint('RED', e.verbose_msg)
+		Logs.error(str(e))
+		sys.exit(1)
+	except Exception as e:
+		Logs.error('Waf: The wscript in %r is unreadable', Context.run_dir)
+		traceback.print_exc(file=sys.stdout)
+		sys.exit(2)
+
+	if options.profile:
+		import cProfile, pstats
+		cProfile.runctx('from waflib import Scripting; Scripting.run_commands()', {}, {}, 'profi.txt')
+		p = pstats.Stats('profi.txt')
+		p.sort_stats('time').print_stats(75) # or 'cumulative'
+	else:
+		try:
+			try:
+				run_commands()
+			except:
+				if options.pdb:
+					import pdb
+					type, value, tb = sys.exc_info()
+					traceback.print_exc()
+					pdb.post_mortem(tb)
+				else:
+					raise
+		except Errors.WafError as e:
+			if Logs.verbose > 1:
+				Logs.pprint('RED', e.verbose_msg)
+			Logs.error(e.msg)
+			sys.exit(1)
+		except SystemExit:
+			raise
+		except Exception as e:
+			traceback.print_exc(file=sys.stdout)
+			sys.exit(2)
+		except KeyboardInterrupt:
+			Logs.pprint('RED', 'Interrupted')
+			sys.exit(68)
+
+def set_main_module(file_path):
+	"""
+	Read the main wscript file into :py:const:`waflib.Context.Context.g_module` and
+	bind default functions such as ``init``, ``dist``, ``distclean`` if not defined.
+	Called by :py:func:`waflib.Scripting.waf_entry_point` during the initialization.
+
+	:param file_path: absolute path representing the top-level wscript file
+	:type file_path: string
+	"""
+	Context.g_module = Context.load_module(file_path)
+	Context.g_module.root_path = file_path
+
+	# note: to register the module globally, use the following:
+	# sys.modules['wscript_main'] = g_module
+
+	def set_def(obj):
+		name = obj.__name__
+		if not name in Context.g_module.__dict__:
+			setattr(Context.g_module, name, obj)
+	for k in (dist, distclean, distcheck):
+		set_def(k)
+	# add dummy init and shutdown functions if they're not defined
+	if not 'init' in Context.g_module.__dict__:
+		Context.g_module.init = Utils.nada
+	if not 'shutdown' in Context.g_module.__dict__:
+		Context.g_module.shutdown = Utils.nada
+	if not 'options' in Context.g_module.__dict__:
+		Context.g_module.options = Utils.nada
+
+def parse_options():
+	"""
+	Parses the command-line options and initialize the logging system.
+	Called by :py:func:`waflib.Scripting.waf_entry_point` during the initialization.
+	"""
+	ctx = Context.create_context('options')
+	ctx.execute()
+	if not Options.commands:
+		Options.commands.append(default_cmd)
+	if Options.options.whelp:
+		ctx.parser.print_help()
+		sys.exit(0)
+
+def run_command(cmd_name):
+	"""
+	Executes a single Waf command. Called by :py:func:`waflib.Scripting.run_commands`.
+
+	:param cmd_name: command to execute, like ``build``
+	:type cmd_name: string
+	"""
+	ctx = Context.create_context(cmd_name)
+	ctx.log_timer = Utils.Timer()
+	ctx.options = Options.options # provided for convenience
+	ctx.cmd = cmd_name
+	try:
+		ctx.execute()
+	finally:
+		# Issue 1374
+		ctx.finalize()
+	return ctx
+
+def run_commands():
+	"""
+	Execute the Waf commands that were given on the command-line, and the other options
+	Called by :py:func:`waflib.Scripting.waf_entry_point` during the initialization, and executed
+	after :py:func:`waflib.Scripting.parse_options`.
+	"""
+	parse_options()
+	run_command('init')
+	while Options.commands:
+		cmd_name = Options.commands.pop(0)
+		ctx = run_command(cmd_name)
+		Logs.info('%r finished successfully (%s)', cmd_name, ctx.log_timer)
+	run_command('shutdown')
+
+###########################################################################################
+
+def distclean_dir(dirname):
+	"""
+	Distclean function called in the particular case when::
+
+		top == out
+
+	:param dirname: absolute path of the folder to clean
+	:type dirname: string
+	"""
+	for (root, dirs, files) in os.walk(dirname):
+		for f in files:
+			if f.endswith(('.o', '.moc', '.exe')):
+				fname = os.path.join(root, f)
+				try:
+					os.remove(fname)
+				except OSError:
+					Logs.warn('Could not remove %r', fname)
+
+	for x in (Context.DBFILE, 'config.log'):
+		try:
+			os.remove(x)
+		except OSError:
+			pass
+
+	try:
+		shutil.rmtree('c4che')
+	except OSError:
+		pass
+
+def distclean(ctx):
+	'''removes build folders and data'''
+
+	def remove_and_log(k, fun):
+		try:
+			fun(k)
+		except EnvironmentError as e:
+			if e.errno != errno.ENOENT:
+				Logs.warn('Could not remove %r', k)
+
+	# remove waf cache folders on the top-level
+	if not Options.commands:
+		for k in os.listdir('.'):
+			for x in '.waf-2 waf-2 .waf3-2 waf3-2'.split():
+				if k.startswith(x):
+					remove_and_log(k, shutil.rmtree)
+
+	# remove a build folder, if any
+	cur = '.'
+	if ctx.options.no_lock_in_top:
+		cur = ctx.options.out
+
+	try:
+		lst = os.listdir(cur)
+	except OSError:
+		Logs.warn('Could not read %r', cur)
+		return
+
+	if Options.lockfile in lst:
+		f = os.path.join(cur, Options.lockfile)
+		try:
+			env = ConfigSet.ConfigSet(f)
+		except EnvironmentError:
+			Logs.warn('Could not read %r', f)
+			return
+
+		if not env.out_dir or not env.top_dir:
+			Logs.warn('Invalid lock file %r', f)
+			return
+
+		if env.out_dir == env.top_dir:
+			distclean_dir(env.out_dir)
+		else:
+			remove_and_log(env.out_dir, shutil.rmtree)
+
+		for k in (env.out_dir, env.top_dir, env.run_dir):
+			p = os.path.join(k, Options.lockfile)
+			remove_and_log(p, os.remove)
+
+class Dist(Context.Context):
+	'''creates an archive containing the project source code'''
+	cmd = 'dist'
+	fun = 'dist'
+	algo = 'tar.bz2'
+	ext_algo = {}
+
+	def execute(self):
+		"""
+		See :py:func:`waflib.Context.Context.execute`
+		"""
+		self.recurse([os.path.dirname(Context.g_module.root_path)])
+		self.archive()
+
+	def archive(self):
+		"""
+		Creates the source archive.
+		"""
+		import tarfile
+
+		arch_name = self.get_arch_name()
+
+		try:
+			self.base_path
+		except AttributeError:
+			self.base_path = self.path
+
+		node = self.base_path.make_node(arch_name)
+		try:
+			node.delete()
+		except OSError:
+			pass
+
+		files = self.get_files()
+
+		if self.algo.startswith('tar.'):
+			tar = tarfile.open(node.abspath(), 'w:' + self.algo.replace('tar.', ''))
+
+			for x in files:
+				self.add_tar_file(x, tar)
+			tar.close()
+		elif self.algo == 'zip':
+			import zipfile
+			zip = zipfile.ZipFile(node.abspath(), 'w', compression=zipfile.ZIP_DEFLATED)
+
+			for x in files:
+				archive_name = self.get_base_name() + '/' + x.path_from(self.base_path)
+				zip.write(x.abspath(), archive_name, zipfile.ZIP_DEFLATED)
+			zip.close()
+		else:
+			self.fatal('Valid algo types are tar.bz2, tar.gz, tar.xz or zip')
+
+		try:
+			from hashlib import sha256
+		except ImportError:
+			digest = ''
+		else:
+			digest = ' (sha256=%r)' % sha256(node.read(flags='rb')).hexdigest()
+
+		Logs.info('New archive created: %s%s', self.arch_name, digest)
+
+	def get_tar_path(self, node):
+		"""
+		Return the path to use for a node in the tar archive, the purpose of this
+		is to let subclases resolve symbolic links or to change file names
+
+		:return: absolute path
+		:rtype: string
+		"""
+		return node.abspath()
+
+	def add_tar_file(self, x, tar):
+		"""
+		Adds a file to the tar archive. Symlinks are not verified.
+
+		:param x: file path
+		:param tar: tar file object
+		"""
+		p = self.get_tar_path(x)
+		tinfo = tar.gettarinfo(name=p, arcname=self.get_tar_prefix() + '/' + x.path_from(self.base_path))
+		tinfo.uid   = 0
+		tinfo.gid   = 0
+		tinfo.uname = 'root'
+		tinfo.gname = 'root'
+
+		if os.path.isfile(p):
+			with open(p, 'rb') as f:
+				tar.addfile(tinfo, fileobj=f)
+		else:
+			tar.addfile(tinfo)
+
+	def get_tar_prefix(self):
+		"""
+		Returns the base path for files added into the archive tar file
+
+		:rtype: string
+		"""
+		try:
+			return self.tar_prefix
+		except AttributeError:
+			return self.get_base_name()
+
+	def get_arch_name(self):
+		"""
+		Returns the archive file name.
+		Set the attribute *arch_name* to change the default value::
+
+			def dist(ctx):
+				ctx.arch_name = 'ctx.tar.bz2'
+
+		:rtype: string
+		"""
+		try:
+			self.arch_name
+		except AttributeError:
+			self.arch_name = self.get_base_name() + '.' + self.ext_algo.get(self.algo, self.algo)
+		return self.arch_name
+
+	def get_base_name(self):
+		"""
+		Returns the default name of the main directory in the archive, which is set to *appname-version*.
+		Set the attribute *base_name* to change the default value::
+
+			def dist(ctx):
+				ctx.base_name = 'files'
+
+		:rtype: string
+		"""
+		try:
+			self.base_name
+		except AttributeError:
+			appname = getattr(Context.g_module, Context.APPNAME, 'noname')
+			version = getattr(Context.g_module, Context.VERSION, '1.0')
+			self.base_name = appname + '-' + version
+		return self.base_name
+
+	def get_excl(self):
+		"""
+		Returns the patterns to exclude for finding the files in the top-level directory.
+		Set the attribute *excl* to change the default value::
+
+			def dist(ctx):
+				ctx.excl = 'build **/*.o **/*.class'
+
+		:rtype: string
+		"""
+		try:
+			return self.excl
+		except AttributeError:
+			self.excl = Node.exclude_regs + ' **/waf-2.* **/.waf-2.* **/waf3-2.* **/.waf3-2.* **/*~ **/*.rej **/*.orig **/*.pyc **/*.pyo **/*.bak **/*.swp **/.lock-w*'
+			if Context.out_dir:
+				nd = self.root.find_node(Context.out_dir)
+				if nd:
+					self.excl += ' ' + nd.path_from(self.base_path)
+			return self.excl
+
+	def get_files(self):
+		"""
+		Files to package are searched automatically by :py:func:`waflib.Node.Node.ant_glob`.
+		Set *files* to prevent this behaviour::
+
+			def dist(ctx):
+				ctx.files = ctx.path.find_node('wscript')
+
+		Files are also searched from the directory 'base_path', to change it, set::
+
+			def dist(ctx):
+				ctx.base_path = path
+
+		:rtype: list of :py:class:`waflib.Node.Node`
+		"""
+		try:
+			files = self.files
+		except AttributeError:
+			files = self.base_path.ant_glob('**/*', excl=self.get_excl())
+		return files
+
+def dist(ctx):
+	'''makes a tarball for redistributing the sources'''
+	pass
+
+class DistCheck(Dist):
+	"""creates an archive with dist, then tries to build it"""
+	fun = 'distcheck'
+	cmd = 'distcheck'
+
+	def execute(self):
+		"""
+		See :py:func:`waflib.Context.Context.execute`
+		"""
+		self.recurse([os.path.dirname(Context.g_module.root_path)])
+		self.archive()
+		self.check()
+
+	def make_distcheck_cmd(self, tmpdir):
+		cfg = []
+		if Options.options.distcheck_args:
+			cfg = shlex.split(Options.options.distcheck_args)
+		else:
+			cfg = [x for x in sys.argv if x.startswith('-')]
+		cmd = [sys.executable, sys.argv[0], 'configure', 'build', 'install', 'uninstall', '--destdir=' + tmpdir] + cfg
+		return cmd
+
+	def check(self):
+		"""
+		Creates the archive, uncompresses it and tries to build the project
+		"""
+		import tempfile, tarfile
+
+		with tarfile.open(self.get_arch_name()) as t:
+			for x in t:
+				t.extract(x)
+
+		instdir = tempfile.mkdtemp('.inst', self.get_base_name())
+		cmd = self.make_distcheck_cmd(instdir)
+		ret = Utils.subprocess.Popen(cmd, cwd=self.get_base_name()).wait()
+		if ret:
+			raise Errors.WafError('distcheck failed with code %r' % ret)
+
+		if os.path.exists(instdir):
+			raise Errors.WafError('distcheck succeeded, but files were left in %s' % instdir)
+
+		shutil.rmtree(self.get_base_name())
+
+
+def distcheck(ctx):
+	'''checks if the project compiles (tarball from 'dist')'''
+	pass
+
+def autoconfigure(execute_method):
+	"""
+	Decorator that enables context commands to run *configure* as needed.
+	"""
+	def execute(self):
+		"""
+		Wraps :py:func:`waflib.Context.Context.execute` on the context class
+		"""
+		if not Configure.autoconfig:
+			return execute_method(self)
+
+		env = ConfigSet.ConfigSet()
+		do_config = False
+		try:
+			env.load(os.path.join(Context.top_dir, Options.lockfile))
+		except EnvironmentError:
+			Logs.warn('Configuring the project')
+			do_config = True
+		else:
+			if env.run_dir != Context.run_dir:
+				do_config = True
+			else:
+				h = 0
+				for f in env.files:
+					try:
+						h = Utils.h_list((h, Utils.readf(f, 'rb')))
+					except EnvironmentError:
+						do_config = True
+						break
+				else:
+					do_config = h != env.hash
+
+		if do_config:
+			cmd = env.config_cmd or 'configure'
+			if Configure.autoconfig == 'clobber':
+				tmp = Options.options.__dict__
+				if env.options:
+					Options.options.__dict__ = env.options
+				try:
+					run_command(cmd)
+				finally:
+					Options.options.__dict__ = tmp
+			else:
+				run_command(cmd)
+			run_command(self.cmd)
+		else:
+			return execute_method(self)
+	return execute
+Build.BuildContext.execute = autoconfigure(Build.BuildContext.execute)
+