1 files changed, 298 insertions, 0 deletions
diff --git a/buildtools/wafadmin/Tools/ocaml.py b/buildtools/wafadmin/Tools/ocaml.py
new file mode 100644
index 0000000000..20c926969a
--- /dev/null
+++ b/buildtools/wafadmin/Tools/ocaml.py
@@ -0,0 +1,298 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2006 (ita)
+
+"ocaml support"
+
+import os, re
+import TaskGen, Utils, Task, Build
+from Logs import error
+from TaskGen import taskgen, feature, before, after, extension
+
+EXT_MLL = ['.mll']
+EXT_MLY = ['.mly']
+EXT_MLI = ['.mli']
+EXT_MLC = ['.c']
+EXT_ML  = ['.ml']
+
+open_re = re.compile('^\s*open\s+([a-zA-Z]+)(;;){0,1}$', re.M)
+foo = re.compile(r"""(\(\*)|(\*\))|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^()*"'\\]*)""", re.M)
+def filter_comments(txt):
+	meh = [0]
+	def repl(m):
+		if m.group(1): meh[0] += 1
+		elif m.group(2): meh[0] -= 1
+		elif not meh[0]: return m.group(0)
+		return ''
+	return foo.sub(repl, txt)
+
+def scan(self):
+	node = self.inputs[0]
+	code = filter_comments(node.read(self.env))
+
+	global open_re
+	names = []
+	import_iterator = open_re.finditer(code)
+	if import_iterator:
+		for import_match in import_iterator:
+			names.append(import_match.group(1))
+	found_lst = []
+	raw_lst = []
+	for name in names:
+		nd = None
+		for x in self.incpaths:
+			nd = x.find_resource(name.lower()+'.ml')
+			if not nd: nd = x.find_resource(name+'.ml')
+			if nd:
+				found_lst.append(nd)
+				break
+		else:
+			raw_lst.append(name)
+
+	return (found_lst, raw_lst)
+
+native_lst=['native', 'all', 'c_object']
+bytecode_lst=['bytecode', 'all']
+class ocaml_taskgen(TaskGen.task_gen):
+	def __init__(self, *k, **kw):
+		TaskGen.task_gen.__init__(self, *k, **kw)
+
+@feature('ocaml')
+def init_ml(self):
+	Utils.def_attrs(self,
+		type = 'all',
+		incpaths_lst = [],
+		bld_incpaths_lst = [],
+		mlltasks = [],
+		mlytasks = [],
+		mlitasks = [],
+		native_tasks = [],
+		bytecode_tasks = [],
+		linktasks = [],
+		bytecode_env = None,
+		native_env = None,
+		compiled_tasks = [],
+		includes = '',
+		uselib = '',
+		are_deps_set = 0)
+
+@feature('ocaml')
+@after('init_ml')
+def init_envs_ml(self):
+
+	self.islibrary = getattr(self, 'islibrary', False)
+
+	global native_lst, bytecode_lst
+	self.native_env = None
+	if self.type in native_lst:
+		self.native_env = self.env.copy()
+		if self.islibrary: self.native_env['OCALINKFLAGS']   = '-a'
+
+	self.bytecode_env = None
+	if self.type in bytecode_lst:
+		self.bytecode_env = self.env.copy()
+		if self.islibrary: self.bytecode_env['OCALINKFLAGS'] = '-a'
+
+	if self.type == 'c_object':
+		self.native_env.append_unique('OCALINKFLAGS_OPT', '-output-obj')
+
+@feature('ocaml')
+@before('apply_vars_ml')
+@after('init_envs_ml')
+def apply_incpaths_ml(self):
+	inc_lst = self.includes.split()
+	lst = self.incpaths_lst
+	for dir in inc_lst:
+		node = self.path.find_dir(dir)
+		if not node:
+			error("node not found: " + str(dir))
+			continue
+		self.bld.rescan(node)
+		if not node in lst: lst.append(node)
+		self.bld_incpaths_lst.append(node)
+	# now the nodes are added to self.incpaths_lst
+
+@feature('ocaml')
+@before('apply_core')
+def apply_vars_ml(self):
+	for i in self.incpaths_lst:
+		if self.bytecode_env:
+			app = self.bytecode_env.append_value
+			app('OCAMLPATH', '-I')
+			app('OCAMLPATH', i.srcpath(self.env))
+			app('OCAMLPATH', '-I')
+			app('OCAMLPATH', i.bldpath(self.env))
+
+		if self.native_env:
+			app = self.native_env.append_value
+			app('OCAMLPATH', '-I')
+			app('OCAMLPATH', i.bldpath(self.env))
+			app('OCAMLPATH', '-I')
+			app('OCAMLPATH', i.srcpath(self.env))
+
+	varnames = ['INCLUDES', 'OCAMLFLAGS', 'OCALINKFLAGS', 'OCALINKFLAGS_OPT']
+	for name in self.uselib.split():
+		for vname in varnames:
+			cnt = self.env[vname+'_'+name]
+			if cnt:
+				if self.bytecode_env: self.bytecode_env.append_value(vname, cnt)
+				if self.native_env: self.native_env.append_value(vname, cnt)
+
+@feature('ocaml')
+@after('apply_core')
+def apply_link_ml(self):
+
+	if self.bytecode_env:
+		ext = self.islibrary and '.cma' or '.run'
+
+		linktask = self.create_task('ocalink')
+		linktask.bytecode = 1
+		linktask.set_outputs(self.path.find_or_declare(self.target + ext))
+		linktask.obj = self
+		linktask.env = self.bytecode_env
+		self.linktasks.append(linktask)
+
+	if self.native_env:
+		if self.type == 'c_object': ext = '.o'
+		elif self.islibrary: ext = '.cmxa'
+		else: ext = ''
+
+		linktask = self.create_task('ocalinkx')
+		linktask.set_outputs(self.path.find_or_declare(self.target + ext))
+		linktask.obj = self
+		linktask.env = self.native_env
+		self.linktasks.append(linktask)
+
+		# we produce a .o file to be used by gcc
+		self.compiled_tasks.append(linktask)
+
+@extension(EXT_MLL)
+def mll_hook(self, node):
+	mll_task = self.create_task('ocamllex', node, node.change_ext('.ml'), env=self.native_env)
+	self.mlltasks.append(mll_task)
+
+	self.allnodes.append(mll_task.outputs[0])
+
+@extension(EXT_MLY)
+def mly_hook(self, node):
+	mly_task = self.create_task('ocamlyacc', node, [node.change_ext('.ml'), node.change_ext('.mli')], env=self.native_env)
+	self.mlytasks.append(mly_task)
+	self.allnodes.append(mly_task.outputs[0])
+
+	task = self.create_task('ocamlcmi', mly_task.outputs[1], mly_task.outputs[1].change_ext('.cmi'), env=self.native_env)
+
+@extension(EXT_MLI)
+def mli_hook(self, node):
+	task = self.create_task('ocamlcmi', node, node.change_ext('.cmi'), env=self.native_env)
+	self.mlitasks.append(task)
+
+@extension(EXT_MLC)
+def mlc_hook(self, node):
+	task = self.create_task('ocamlcc', node, node.change_ext('.o'), env=self.native_env)
+	self.compiled_tasks.append(task)
+
+@extension(EXT_ML)
+def ml_hook(self, node):
+	if self.native_env:
+		task = self.create_task('ocamlx', node, node.change_ext('.cmx'), env=self.native_env)
+		task.obj = self
+		task.incpaths = self.bld_incpaths_lst
+		self.native_tasks.append(task)
+
+	if self.bytecode_env:
+		task = self.create_task('ocaml', node, node.change_ext('.cmo'), env=self.bytecode_env)
+		task.obj = self
+		task.bytecode = 1
+		task.incpaths = self.bld_incpaths_lst
+		self.bytecode_tasks.append(task)
+
+def compile_may_start(self):
+	if not getattr(self, 'flag_deps', ''):
+		self.flag_deps = 1
+
+		# the evil part is that we can only compute the dependencies after the
+		# source files can be read (this means actually producing the source files)
+		if getattr(self, 'bytecode', ''): alltasks = self.obj.bytecode_tasks
+		else: alltasks = self.obj.native_tasks
+
+		self.signature() # ensure that files are scanned - unfortunately
+		tree = self.generator.bld
+		env = self.env
+		for node in self.inputs:
+			lst = tree.node_deps[self.unique_id()]
+			for depnode in lst:
+				for t in alltasks:
+					if t == self: continue
+					if depnode in t.inputs:
+						self.set_run_after(t)
+
+		# TODO necessary to get the signature right - for now
+		delattr(self, 'cache_sig')
+		self.signature()
+
+	return Task.Task.runnable_status(self)
+
+b = Task.simple_task_type
+cls = b('ocamlx', '${OCAMLOPT} ${OCAMLPATH} ${OCAMLFLAGS} ${INCLUDES} -c -o ${TGT} ${SRC}', color='GREEN', shell=False)
+cls.runnable_status = compile_may_start
+cls.scan = scan
+
+b = Task.simple_task_type
+cls = b('ocaml', '${OCAMLC} ${OCAMLPATH} ${OCAMLFLAGS} ${INCLUDES} -c -o ${TGT} ${SRC}', color='GREEN', shell=False)
+cls.runnable_status = compile_may_start
+cls.scan = scan
+
+
+b('ocamlcmi', '${OCAMLC} ${OCAMLPATH} ${INCLUDES} -o ${TGT} -c ${SRC}', color='BLUE', before="ocaml ocamlcc ocamlx")
+b('ocamlcc', 'cd ${TGT[0].bld_dir(env)} && ${OCAMLOPT} ${OCAMLFLAGS} ${OCAMLPATH} ${INCLUDES} -c ${SRC[0].abspath(env)}', color='GREEN')
+
+b('ocamllex', '${OCAMLLEX} ${SRC} -o ${TGT}', color='BLUE', before="ocamlcmi ocaml ocamlcc")
+b('ocamlyacc', '${OCAMLYACC} -b ${TGT[0].bld_base(env)} ${SRC}', color='BLUE', before="ocamlcmi ocaml ocamlcc")
+
+
+def link_may_start(self):
+	if not getattr(self, 'order', ''):
+
+		# now reorder the inputs given the task dependencies
+		if getattr(self, 'bytecode', 0): alltasks = self.obj.bytecode_tasks
+		else: alltasks = self.obj.native_tasks
+
+		# this part is difficult, we do not have a total order on the tasks
+		# if the dependencies are wrong, this may not stop
+		seen = []
+		pendant = []+alltasks
+		while pendant:
+			task = pendant.pop(0)
+			if task in seen: continue
+			for x in task.run_after:
+				if not x in seen:
+					pendant.append(task)
+					break
+			else:
+				seen.append(task)
+		self.inputs = [x.outputs[0] for x in seen]
+		self.order = 1
+	return Task.Task.runnable_status(self)
+
+act = b('ocalink', '${OCAMLC} -o ${TGT} ${INCLUDES} ${OCALINKFLAGS} ${SRC}', color='YELLOW', after="ocaml ocamlcc")
+act.runnable_status = link_may_start
+act = b('ocalinkx', '${OCAMLOPT} -o ${TGT} ${INCLUDES} ${OCALINKFLAGS_OPT} ${SRC}', color='YELLOW', after="ocamlx ocamlcc")
+act.runnable_status = link_may_start
+
+def detect(conf):
+	opt = conf.find_program('ocamlopt', var='OCAMLOPT')
+	occ = conf.find_program('ocamlc', var='OCAMLC')
+	if (not opt) or (not occ):
+		conf.fatal('The objective caml compiler was not found:\ninstall it or make it available in your PATH')
+
+	v = conf.env
+	v['OCAMLC']       = occ
+	v['OCAMLOPT']     = opt
+	v['OCAMLLEX']     = conf.find_program('ocamllex', var='OCAMLLEX')
+	v['OCAMLYACC']    = conf.find_program('ocamlyacc', var='OCAMLYACC')
+	v['OCAMLFLAGS']   = ''
+	v['OCAMLLIB']     = Utils.cmd_output(conf.env['OCAMLC']+' -where').strip()+os.sep
+	v['LIBPATH_OCAML'] = Utils.cmd_output(conf.env['OCAMLC']+' -where').strip()+os.sep
+	v['CPPPATH_OCAML'] = Utils.cmd_output(conf.env['OCAMLC']+' -where').strip()+os.sep
+	v['LIB_OCAML'] = 'camlrun'
+