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authorRemko Tronçon <git@el-tramo.be>2013-07-14 17:32:27 (GMT)
committerRemko Tronçon <git@el-tramo.be>2013-07-15 18:02:01 (GMT)
commitffb8c6b0cdcdfa133680d87a1cebe8fecff8426b (patch)
treee537fde8087cb6cead858db92b8bc2f4217380ea /BuildTools
parenta0f902844e7d83006a45c40158aa7d8256c87260 (diff)
downloadswift-contrib-ffb8c6b0cdcdfa133680d87a1cebe8fecff8426b.zip
swift-contrib-ffb8c6b0cdcdfa133680d87a1cebe8fecff8426b.tar.bz2
Ported scons2ninja to python.
Change-Id: I0cf2c0123686d6cad487e423072f4fc5b28ea1ce
Diffstat (limited to 'BuildTools')
-rwxr-xr-xBuildTools/scons2ninja.py589
-rwxr-xr-xBuildTools/scons2ninja.rb562
2 files changed, 589 insertions, 562 deletions
diff --git a/BuildTools/scons2ninja.py b/BuildTools/scons2ninja.py
new file mode 100755
index 0000000..1af52d7
--- /dev/null
+++ b/BuildTools/scons2ninja.py
@@ -0,0 +1,589 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+################################################################################
+#
+# scons2ninja: A script to create a Ninja build file from SCons.
+#
+# Copyright (c) 2013 Remko Tronçon
+# Licensed under the simplified BSD license.
+# See COPYING for details.
+#
+################################################################################
+
+import re, os, os.path, subprocess, sys, fnmatch
+
+################################################################################
+# Helper methods & variables
+################################################################################
+
+SCRIPT = sys.argv[0]
+SCONS_ARGS = ' '.join(sys.argv[1:])
+
+# TODO: Make this a tool-specific map
+BINARY_FLAGS = ["-framework", "-arch", "-x", "--output-format", "-isystem", "-include"]
+
+if sys.platform == 'win32' :
+ LIB_PREFIX = ""
+ LIB_SUFFIX = ""
+ EXE_SUFFIX = ".exe"
+else :
+ LIB_PREFIX = "lib"
+ LIB_SUFFIX = ".a"
+ EXE_SUFFIX = ""
+
+def is_regexp(x) :
+ return 'match' in dir(x)
+
+def is_list(l) :
+ return type(l) is list
+
+def escape(s) :
+ return s.replace(' ', '$ ').replace(':', '$:')
+
+def to_list(l) :
+ if not l :
+ return []
+ if is_list(l) :
+ return l
+ return [l]
+
+def partition(l, f) :
+ x = []
+ y = []
+ for v in l :
+ if f(v) :
+ x.append(v)
+ else :
+ y.append(v)
+ return (x, y)
+
+def get_unary_flags(prefix, flags) :
+ return [x[len(prefix):] for x in flags if x.lower().startswith(prefix.lower())]
+
+def extract_unary_flags(prefix, flags) :
+ f1, f2 = partition(flags, lambda x : x.lower().startswith(prefix.lower()))
+ return ([f[len(prefix):] for f in f1], f2)
+
+def extract_unary_flag(prefix, flags) :
+ flag, flags = extract_unary_flags(prefix, flags)
+ return (flag[0], flags)
+
+def extract_binary_flag(prefix, flags) :
+ i = flags.index(prefix)
+ flag = flags[i + 1]
+ del flags[i]
+ del flags[i]
+ return (flag, flags)
+
+def get_non_flags(flags) :
+ skip = False
+ result = []
+ for f in flags :
+ if skip :
+ skip = False
+ elif f in BINARY_FLAGS :
+ skip = True
+ elif not f.startswith("/") and not f.startswith("-") :
+ result.append(f)
+ return result
+
+def extract_non_flags(flags) :
+ non_flags = get_non_flags(flags)
+ return (non_flags, filter(lambda x : x not in non_flags, flags))
+
+def get_dependencies(target, build_targets) :
+ result = []
+ queue = list(dependencies.get(target, []))
+ while len(queue) > 0 :
+ n = queue.pop()
+ # Filter out Value() results
+ if n in build_targets or os.path.exists(n) :
+ result.append(n)
+ queue += list(dependencies.get(n, []))
+ return result
+
+def get_built_libs(libs, libpaths, outputs) :
+ canonical_outputs = [os.path.abspath(p) for p in outputs]
+ result = []
+ for libpath in libpaths :
+ for lib in libs :
+ lib_libpath = os.path.join(libpath, LIB_PREFIX + lib + LIB_SUFFIX)
+ if os.path.abspath(lib_libpath) in canonical_outputs :
+ result.append(lib_libpath)
+ return result
+
+def parse_tool_command(line) :
+ command = line.split(' ')
+ flags = command[1:]
+ tool = os.path.splitext(os.path.basename(command[0]))[0]
+ if tool.startswith('clang++') or tool.startswith('g++') :
+ tool = "cxx"
+ elif tool.startswith('clang') or tool.startswith('gcc') :
+ tool = "cc"
+ if tool in ["cc", "cxx"] and not "-c" in flags :
+ tool = "glink"
+ tool = tool.replace('-qt4', '')
+ return tool, command, flags
+
+def rglob(pattern, root = '.') :
+ return [os.path.join(path, f) for path, dirs, files in os.walk(root) for f in fnmatch.filter(files, pattern)]
+
+################################################################################
+# Helper for building Ninja files
+################################################################################
+
+class NinjaBuilder :
+ def __init__(self) :
+ self._header = ""
+ self.variables = ""
+ self.rules = ""
+ self._build = ""
+ self.pools = ""
+ self._flags = {}
+ self.targets = []
+
+ def header(self, text) :
+ self._header += text + "\n"
+
+ def rule(self, name, **kwargs) :
+ self.rules += "rule " + name + "\n"
+ for k, v in kwargs.iteritems() :
+ self.rules += " " + str(k) + " = " + str(v) + "\n"
+ self.rules += "\n"
+
+ def pool(self, name, **kwargs) :
+ self.pools += "pool " + name + "\n"
+ for k, v in kwargs.iteritems() :
+ self.pools += " " + str(k) + " = " + str(v) + "\n"
+ self.pools += "\n"
+
+ def variable(self, name, value) :
+ self.variables += str(name) + " = " + str(value) + "\n"
+
+ def build(self, target, rule, sources = None, **kwargs) :
+ self._build += "build " + self.to_string(target) + ": " + rule
+ if sources :
+ self._build += " " + self.to_string(sources)
+ if 'deps' in kwargs and kwargs['deps'] :
+ self._build += " | " + self.to_string(kwargs["deps"])
+ if 'order_deps' in kwargs :
+ self._build += " || " + self.to_string(kwargs['order_deps'])
+ self._build += "\n"
+ for var, value in kwargs.iteritems() :
+ if var in ['deps', 'order_deps'] :
+ continue
+ value = self.to_string(value)
+ if var.endswith("flags") :
+ value = self.get_flags_variable(var, value)
+ self._build += " " + var + " = " + value + "\n"
+ self.targets += to_list(target)
+
+ def header_targets(self) :
+ return [x for x in self.targets if x.endswith('.h') or x.endswith('.hh')]
+
+ def serialize(self) :
+ result = ""
+ result += self._header + "\n"
+ result += self.variables + "\n"
+ for prefix in self._flags.values() :
+ for k, v in prefix.iteritems() :
+ result += v + " = " + k + "\n"
+ result += "\n"
+ result += self.pools + "\n"
+ result += self.rules + "\n"
+ result += self._build + "\n"
+ return result
+
+ def to_string(self, lst) :
+ if is_list(lst) :
+ return ' '.join([escape(x) for x in lst])
+ if is_regexp(lst) :
+ return ' '.join([escape(x) for x in self.targets if lst.match(x)])
+ return escape(lst)
+
+ def get_flags_variable(self, flags_type, flags) :
+ if len(flags) == 0 :
+ return ''
+ if flags_type not in self._flags :
+ self._flags[flags_type] = {}
+ type_flags = self._flags[flags_type]
+ if flags not in type_flags :
+ type_flags[flags] = flags_type + "_" + str(len(type_flags))
+ return "$" + type_flags[flags]
+
+
+################################################################################
+# Configuration
+################################################################################
+
+ninja_post = []
+scons_cmd = "scons"
+scons_dependencies = ['SConstruct'] + rglob('SConscript')
+
+CONFIGURATION_FILE = '.scons2ninja.conf'
+execfile(CONFIGURATION_FILE)
+
+scons_dependencies = [os.path.normpath(x) for x in scons_dependencies]
+
+
+################################################################################
+# Rules
+################################################################################
+
+ninja = NinjaBuilder()
+
+ninja.pool('scons_pool', depth = 1)
+
+if sys.platform == 'win32' :
+ ninja.rule('cl',
+ deps = 'msvc',
+ command = '$cl /showIncludes $clflags -c $in /Fo$out',
+ description = 'CXX $out')
+
+ ninja.rule('link',
+ command = '$link $in $linkflags $libs /out:$out',
+ description = 'LINK $out')
+
+ ninja.rule('link_mt',
+ command = '$link $in $linkflags $libs /out:$out ; $mt $mtflags',
+ description = 'LINK $out')
+
+ ninja.rule('lib',
+ command = '$lib $libflags /out:$out $in',
+ description = 'AR $out')
+
+ ninja.rule('rc',
+ command = '$rc $rcflags /Fo$out $in',
+ description = 'RC $out')
+
+ # SCons doesn't touch files if they didn't change, which makes
+ # ninja rebuild the file over and over again. There's no touch on Windows :(
+ # Could implement it with a script, but for now, delete the file if
+ # this problem occurs. I'll fix it if it occurs too much.
+ ninja.rule('scons',
+ command = scons_cmd + " ${scons_args} $out",
+ pool = 'scons_pool',
+ description = 'GEN $out')
+
+ ninja.rule('install', command = 'cmd /c copy $in $out')
+ ninja.rule('run', command = '$in')
+else :
+ ninja.rule('cxx',
+ deps = 'gcc',
+ depfile = '$out.d',
+ command = '$cxx -MMD -MF $out.d $cxxflags -c $in -o $out',
+ description = 'CXX $out')
+
+ ninja.rule('cc',
+ deps = 'gcc',
+ depfile = '$out.d',
+ command = '$cc -MMD -MF $out.d $ccflags -c $in -o $out',
+ description = 'CC $out')
+
+ ninja.rule('link',
+ command = '$glink -o $out $in $linkflags',
+ description = 'LINK $out')
+
+ ninja.rule('ar',
+ command = 'ar $arflags $out $in && ranlib $out',
+ description = 'AR $out')
+
+ # SCons doesn't touch files if they didn't change, which makes
+ # ninja rebuild the file over and over again. Touching solves this.
+ ninja.rule('scons',
+ command = scons_cmd + " $out && touch $out",
+ pool = 'scons_pool',
+ description = 'GEN $out')
+
+ ninja.rule('install', command = 'install $in $out')
+ ninja.rule('run', command = './$in')
+
+
+ninja.rule('moc',
+ command = '$moc $mocflags -o $out $in',
+ description = 'MOC $out')
+
+ninja.rule('rcc',
+ command = '$rcc $rccflags -name $name -o $out $in',
+ description = 'RCC $out')
+
+ninja.rule('uic',
+ command = '$uic $uicflags -o $out $in',
+ description = 'UIC $out')
+
+ninja.rule('lrelease',
+ command = '$lrelease $lreleaseflags $in -qm $out',
+ description = 'LRELEASE $out')
+
+ninja.rule('ibtool',
+ command = '$ibtool $ibtoolflags --compile $out $in',
+ description = 'IBTOOL $out')
+
+ninja.rule('generator',
+ command = "python " + SCRIPT + " ${scons_args}",
+ pool = 'scons_pool',
+ generator = '1',
+ description = 'Regenerating build.ninja')
+
+
+################################################################################
+# Build Statements
+################################################################################
+
+scons_generate_cmd = scons_cmd + " " + SCONS_ARGS + " --tree=all,prune dump_trace=1"
+#scons_generate_cmd = 'cmd /c type scons2ninja.in'
+#scons_generate_cmd = 'cat scons2ninja.in'
+
+# Pass 1: Parse dependencies (and prefilter some build rules)
+build_lines = []
+dependencies = {}
+mtflags = {}
+previous_file = None
+f = subprocess.Popen(scons_generate_cmd, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell=True)
+stage = 'preamble'
+skip_nth_line = -1
+stack = ['.']
+for line in f.stdout.readlines() :
+ line = line.rstrip()
+
+ # Skip lines if requested from previous command
+ if skip_nth_line >= 0 :
+ skip_nth_line -= 1
+ if skip_nth_line == 0 :
+ continue
+
+ if line.startswith('scons: done building targets') :
+ break
+
+ if stage == "preamble" :
+ # Pass all lines from the SCons configuration step to output
+ if re.match("^scons: Building targets ...", line) :
+ stage = "build"
+ else :
+ print line
+
+ elif stage == "build" :
+ if line.startswith('+-') :
+ stage = "dependencies"
+ elif re.match("^Using tempfile", line) :
+ # Ignore response files from MSVS
+ skip_nth_line = 2
+ else :
+ build_lines.append(line)
+
+ # Already detect targets that will need 'mt'
+ tool, _, flags = parse_tool_command(line)
+ if tool == 'mt' :
+ target = get_unary_flags("-outputresource:", flags)[0]
+ target = target[0:target.index(';')]
+ mtflags[target] = flags
+
+ elif stage == "dependencies" :
+ if not re.match('^[\s|]+\+\-', line) :
+ # Work around bug in SCons that splits output over multiple lines
+ continue
+
+ level = line.index('+-') / 2
+ filename = line[level*2+2:]
+ if filename.startswith('[') :
+ filename = filename[1:-1]
+
+ # Check if we use the 'fixed' format which escapes filenamenames
+ if filename.startswith('\'') and filename.endswith('\'') :
+ filename = eval(filename)
+
+ if level < len(stack) :
+ stack = stack[0:level]
+ elif level > len(stack) :
+ if level != len(stack) + 1 :
+ raise Exception("Internal Error" )
+ stack.append(previous_filename)
+
+ # Skip absolute paths
+ if not os.path.isabs(filename) :
+ target = stack[-1]
+ if target not in dependencies :
+ dependencies[target] = []
+ dependencies[target].append(filename)
+ previous_filename = filename
+
+if f.wait() != 0 :
+ print "Error calling '" + scons_generate_cmd + "'"
+ print f.stderr.read()
+ exit(-1)
+
+# Pass 2: Parse build rules
+tools = {}
+for line in build_lines :
+ # Custom python function
+ m = re.match('^(\w+)\(\[([^\]]*)\]', line)
+ if m :
+ out = [x[1:-1] for x in m.group(2).split(',')]
+ for x in out :
+ # 'Note' = To be more correct, deps should also include $scons_dependencies,
+ # but this regenerates a bit too often, so leaving it out for now.
+ ninja.build(x, 'scons', None, deps = sorted(get_dependencies(x, ninja.targets)))
+ continue
+
+
+ # TextFile
+ m = re.match("^Creating '([^']+)'", line)
+ if m :
+ out = m.group(1)
+ # Note: To be more correct, deps should also include $scons_dependencies,
+ # but this regenerates a bit too often, so leaving it out for now.
+ ninja.build(out, 'scons', None, deps = sorted(get_dependencies(out, ninja.targets)))
+ continue
+
+ # Install
+ m = re.match('^Install file: "(.*)" as "(.*)"', line)
+ if m :
+ ninja.build(m.group(2), 'install', m.group(1))
+ continue
+
+ m = re.match('^Install directory: "(.*)" as "(.*)"', line)
+ if m :
+ for source in rglob('*', m.group(1)) :
+ if os.path.isdir(source) :
+ continue
+ target = os.path.join(m.group(2), os.path.relpath(source, m.group(1)))
+ ninja.build(target, 'install', source)
+ continue
+
+ # Tools
+ tool, command, flags = parse_tool_command(line)
+ tools[tool] = command[0]
+
+ ############################################################
+ # clang/gcc tools
+ ############################################################
+
+ if tool == 'cc':
+ out, flags = extract_binary_flag("-o", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'cc', files, order_deps = '_generated_headers', ccflags = flags)
+
+ elif tool == 'cxx':
+ out, flags = extract_binary_flag("-o", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'cxx', files, order_deps = '_generated_headers', cxxflags = flags)
+
+ elif tool == 'glink':
+ out, flags = extract_binary_flag("-o", flags)
+ files, flags = extract_non_flags(flags)
+ libs = get_unary_flags('-l', flags)
+ libpaths = get_unary_flags("-L", flags)
+ deps = get_built_libs(libs, libpaths, ninja.targets)
+ ninja.build(out, 'link', files, deps = sorted(deps), linkflags = flags)
+
+ elif tool == 'ar':
+ objects, flags = partition(flags, lambda x: x.endswith('.o'))
+ libs, flags = partition(flags, lambda x: x.endswith('.a'))
+ out = libs[0]
+ ninja.build(out, 'ar', objects, arflags = flags)
+
+ elif tool == 'ranlib':
+ pass
+
+
+ ############################################################
+ # MSVC tools
+ ############################################################
+
+ elif tool == 'cl':
+ out, flags = extract_unary_flag("/Fo", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'cl', files, order_deps = '_generated_headers', clflags = flags)
+
+ elif tool == 'lib':
+ out, flags = extract_unary_flag("/out:", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'lib', files, libflags = flags)
+
+ elif tool == 'link':
+ objects, flags = partition(flags, lambda x: x.endswith('.obj') or x.endswith('.res'))
+ out, flags = extract_unary_flag("/out:", flags)
+ libs, flags = partition(flags, lambda x: not x.startswith("/") and x.endswith(".lib"))
+ libpaths = get_unary_flags("/libpath:", flags)
+ deps = get_built_libs(libs, libpaths, ninja.targets)
+ if out in mtflags :
+ ninja.build(out, 'link_mt', objects, deps = sorted(deps),
+ libs = libs, linkflags = flags, mtflags = mtflags[out])
+ else :
+ ninja.build(out, 'link', objects, deps = sorted(deps),
+ libs = libs, linkflags = flags)
+
+ elif tool == 'rc':
+ out, flags = extract_unary_flag("/fo", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'rc', files[0], order_deps = '_generated_headers', rcflags = flags)
+
+ elif tool == 'mt':
+ # Already handled
+ pass
+
+ ############################################################
+ # Qt tools
+ ############################################################
+
+ elif tool == 'moc':
+ out, flags = extract_binary_flag("-o", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'moc', files, mocflags = flags)
+
+ elif tool == 'uic':
+ out, flags = extract_binary_flag("-o", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'uic', files, uicflags = flags)
+
+ elif tool == 'lrelease':
+ out, flags = extract_binary_flag("-qm", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'lrelease', files, lreleaseflags = flags)
+
+ elif tool == 'rcc':
+ out, flags = extract_binary_flag("-o", flags)
+ name, flags = extract_binary_flag("-name", flags)
+ files, flags = extract_non_flags(flags)
+ deps = list(set(get_dependencies(out, ninja.targets)) - set(files))
+ ninja.build(out, 'rcc', files, deps = sorted(deps), name = name, rccflags = flags)
+
+ ############################################################
+ # OS X tools
+ ############################################################
+
+ elif tool == 'ibtool':
+ out, flags = extract_binary_flag("--compile", flags)
+ files, flags = extract_non_flags(flags)
+ ninja.build(out, 'ibtool', files, ibtoolflags = flags)
+
+ else :
+ raise Exception("Unknown tool: '" + line + "'")
+
+
+# Phony target for all generated headers, used as an order-only depency from all C/C++ sources
+ninja.build('_generated_headers', 'phony', ninja.header_targets())
+
+# Regenerate build.ninja file
+ninja.build('build.ninja', 'generator', [], deps = [SCRIPT, CONFIGURATION_FILE] + scons_dependencies)
+
+# Header & variables
+ninja.header("# This file is generated by " + SCRIPT)
+ninja.variable("ninja_required_version", "1.3")
+ninja.variable("scons_args", SCONS_ARGS)
+for k, v in tools.iteritems() :
+ ninja.variable(k, v)
+
+# Extra customizations
+if 'ninja_post' in dir() :
+ ninja_post(ninja)
+
+
+################################################################################
+# Result
+################################################################################
+
+f = open("build.ninja", "w")
+f.write(ninja.serialize())
+f.close()
diff --git a/BuildTools/scons2ninja.rb b/BuildTools/scons2ninja.rb
deleted file mode 100755
index 6184f36..0000000
--- a/BuildTools/scons2ninja.rb
+++ /dev/null
@@ -1,562 +0,0 @@
-#!/usr/bin/env ruby
-
-################################################################################
-#
-# scons2ninja: A script to create a Ninja build file from SCons.
-#
-# Copyright (c) 2013 Remko Tronçon
-# Licensed under the simplified BSD license.
-# See COPYING for details.
-#
-################################################################################
-
-require 'pathname'
-require 'open3'
-
-
-################################################################################
-# Helper for building Ninja files
-################################################################################
-
-class NinjaBuilder
- attr_reader :targets
-
- def initialize
- @header = ""
- @variables = ""
- @rules = ""
- @build = ""
- @pools = ""
- @flags = Hash.new{ |h,k| h[k] = Hash.new() }
- @targets = []
- end
-
- def header(text)
- @header << text << "\n"
- end
-
- def rule(name, opts = {})
- @rules << "rule #{name}\n"
- opts.each { |k, v| @rules << " " << k.to_s << " = " << v.to_s << "\n" }
- @rules << "\n"
- end
-
- def pool(name, opts = {})
- @pools << "pool #{name}\n"
- opts.each { |k, v| @pools << " " << k.to_s << " = " << v.to_s << "\n" }
- @pools << "\n"
- end
-
- def variable(name, value)
- @variables << "#{name} = #{value}\n"
- end
-
- def build(target, rule, sources = nil, opts = {})
- @build << "build " << str(target) << ": " << rule
- @build << " " << str(sources) if sources
- @build << " | " << str(opts[:deps]) if opts[:deps]
- @build << " || " << str(opts[:order_deps]) if opts[:order_deps]
- @build << "\n"
- opts.each do |var, value|
- next if [:deps, :order_deps].include? var
- var = var.to_s
- value = str(value)
- value = get_flags_variable(var, value) if var.end_with? "flags"
- @build << " #{var} = #{value}\n"
- end
- @targets += list(target)
- end
-
- def header_targets
- @targets.select { |target| target.end_with? '.h' or target.end_with? '.hh' }
- end
-
- def to_s
- result = ""
- result << @header << "\n"
- result << @variables << "\n"
- @flags.each { |_, prefix| prefix.each { |k, v| result << "#{v} = #{k}\n" } }
- result << "\n"
- result << @pools << "\n"
- result << @rules << "\n"
- result << @build << "\n"
- result
- end
-
- private
- def str(list)
- return list.map{ |x| escape(x) }.join(' ') if list.is_a? Enumerable
- return @targets.select { |x| list.match(x) }.map { |x| escape(x) }.join(' ') if list.is_a? Regexp
- list
- end
-
- def escape(s)
- s.gsub(/ /, '$ ')
- end
-
- def get_flags_variable(type, flags)
- return '' if flags.empty?
- type_flags = @flags[type]
- unless id = type_flags[flags]
- id = "#{type}_#{type_flags.size()}"
- type_flags[flags] = id
- end
- "$#{id}"
- end
-end
-
-################################################################################
-# Helper methods & variables
-################################################################################
-
-if RUBY_PLATFORM =~ /(win32|mingw32)/
- LIB_PREFIX = ""
- LIB_SUFFIX = ""
- EXE_SUFFIX = ".exe"
-else
- LIB_PREFIX = "lib"
- LIB_SUFFIX = ".a"
- EXE_SUFFIX = ""
-end
-
-def list(l)
- return [] if nil
- return l if l.is_a? Enumerable
- [l]
-end
-
-def get_unary_flags(prefix, flags)
- flags.select {|x| /^#{prefix}/i.match(x)}.map { |x| x[prefix.size .. -1] }
-end
-
-def extract_unary_flags(prefix, flags)
- flag, flags = flags.partition { |x| /^#{prefix}/i.match(x) }
- [flag.map { |x| x[prefix.size .. -1] }, flags]
-end
-
-def extract_unary_flag(prefix, flags)
- flag, flags = extract_unary_flags(prefix, flags)
- [flag[0], flags]
-end
-
-def extract_binary_flag(prefix, flags)
- i = flags.index(prefix)
- flag = flags[i + 1]
- flags.delete_at(i)
- flags.delete_at(i)
- [flag, flags]
-end
-
-BINARY_FLAGS = ["-framework", "-arch", "-x", "--output-format", "-isystem", "-include"]
-
-def get_non_flags(flags)
- skip = false
- result = []
- flags.each do |f|
- if skip
- skip = false
- elsif BINARY_FLAGS.include? f
- skip = true
- elsif not f.start_with? "/" and not f.start_with? "-"
- result << f
- end
- end
- result
-end
-
-def extract_non_flags(flags)
- non_flags = get_non_flags(flags)
- [non_flags, flags - non_flags]
-end
-
-def to_native_path(path)
- path.gsub(File::SEPARATOR, File::ALT_SEPARATOR || File::SEPARATOR)
-end
-
-def from_native_path(path)
- path.gsub(File::ALT_SEPARATOR || File::SEPARATOR, File::SEPARATOR)
-end
-
-def get_dependencies(target, build_targets)
- result = []
- queue = $dependencies[target].dup
- while queue.size > 0
- n = queue.pop
- result << n
- queue += $dependencies[n].dup
- end
- # Filter out Value() results
- result.select {|x| build_targets.include? x or File.exists? x }
-end
-
-def get_built_libs(libs, libpaths, outputs)
- canonical_outputs = outputs.map {|p| File.expand_path(p) }
- result = []
- libpaths.each do |libpath|
- libs.each do |lib|
- lib_libpath = Pathname.new(libpath) + "#{LIB_PREFIX}#{lib}#{LIB_SUFFIX}"
- if canonical_outputs.include? lib_libpath.expand_path.to_s
- result << to_native_path(lib_libpath.to_s)
- end
- end
- end
- result
-end
-
-script = to_native_path($0)
-
-################################################################################
-# Configuration
-################################################################################
-
-$ninja_post = []
-$scons_cmd = "scons"
-$scons_dependencies = Dir['SConstruct'] + Dir['**/SConscript']
-
-def ninja_post (&block)
- $ninja_post << block
-end
-
-
-CONFIGURATION_FILE = '.scons2ninja.conf'
-
-load CONFIGURATION_FILE
-
-$scons_dependencies = $scons_dependencies.map {|x| to_native_path(x) }
-
-################################################################################
-# Rules
-################################################################################
-
-ninja = NinjaBuilder.new
-
-ninja.pool 'scons_pool', depth: 1
-
-if RUBY_PLATFORM =~ /(win32|mingw32)/
- ninja.rule 'cl',
- deps: 'msvc',
- command: '$cl /showIncludes $clflags -c $in /Fo$out',
- description: 'CXX $out'
-
- ninja.rule 'link',
- command: '$link $in $linkflags $libs /out:$out',
- description: 'LINK $out'
-
- ninja.rule 'lib',
- command: '$lib $libflags /out:$out $in',
- description: 'AR $out'
-
- ninja.rule 'rc',
- command: '$rc $rcflags /Fo$out $in',
- description: 'RC $out'
-
- # SCons doesn't touch files if they didn't change, which makes
- # ninja rebuild the file over and over again. There's no touch on Windows :(
- # Could implement it with a script, but for now, delete the file if
- # this problem occurs. I'll fix it if it occurs too much.
- ninja.rule 'scons',
- command: "#{$scons_cmd} $out",
- pool: 'scons_pool',
- description: 'GEN $out'
-
- ninja.rule 'install', command: 'cmd /c copy $in $out'
- ninja.rule 'run', command: '$in'
-else
- ninja.rule 'cxx',
- deps: 'gcc',
- depfile: '$out.d',
- command: '$cxx -MMD -MF $out.d $cxxflags -c $in -o $out',
- description: 'CXX $out'
-
- ninja.rule 'cc',
- deps: 'gcc',
- depfile: '$out.d',
- command: '$cc -MMD -MF $out.d $ccflags -c $in -o $out',
- description: 'CC $out'
-
- ninja.rule 'link',
- command: '$glink -o $out $in $linkflags',
- description: 'LINK $out'
-
- ninja.rule 'ar',
- command: 'ar $arflags $out $in && ranlib $out',
- description: 'AR $out'
-
- # SCons doesn't touch files if they didn't change, which makes
- # ninja rebuild the file over and over again. Touching solves this.
- ninja.rule 'scons',
- command: "#{$scons_cmd} $out && touch $out",
- pool: 'scons_pool',
- description: 'GEN $out'
-
- ninja.rule 'install', command: 'install $in $out'
- ninja.rule 'run', command: './$in'
-end
-
-ninja.rule 'moc',
- command: '$moc $mocflags -o $out $in',
- description: 'MOC $out'
-
-ninja.rule 'rcc',
- command: '$rcc $rccflags -name $name -o $out $in',
- description: 'RCC $out'
-
-ninja.rule 'uic',
- command: '$uic $uicflags -o $out $in',
- description: 'UIC $out'
-
-ninja.rule 'lrelease',
- command: '$lrelease $lreleaseflags $in -qm $out',
- description: 'LRELEASE $out'
-
-ninja.rule 'ibtool',
- command: '$ibtool $ibtoolflags --compile $out $in',
- description: 'IBTOOL $out'
-
-ninja.rule 'generator',
- command: "ruby #{script} ${generator_args}",
- pool: 'scons_pool',
- generator: '1',
- description: 'Regenerating build.ninja'
-
-
-################################################################################
-# Build Statements
-################################################################################
-
-generator_args = ARGV.join(' ')
-scons_generate_cmd = "#{$scons_cmd} #{generator_args} --tree=all,prune dump_trace=1"
-#scons_generate_cmd = 'cmd /c type scons2ninja.in'
-#scons_generate_cmd = 'cat scons2ninja.in'
-
-# Pass 1: Parse dependencies (and prefilter some build rules)
-build_lines = []
-$dependencies = Hash.new {|h, k| h[k] = [] }
-previous_file = nil
-Open3.popen3(scons_generate_cmd) do |stdin, f, stderr, thread|
- stage = :preamble
- skip_nth_line = -1
- stack = ['.']
- f.each_line do |line|
- # Skip lines if requested from previous command
- skip_nth_line -= 1 if skip_nth_line >= 0
- next if skip_nth_line == 0
-
- line.chop!
-
- break if line.start_with? 'scons: done building targets'
-
- case stage
- # Pass all lines from the SCons configuration step to output
- when :preamble
- if /^scons: Building targets .../.match(line)
- stage = :build
- else
- puts line
- end
-
- when :build
- if line.start_with? '+-'
- stage = :dependencies
- # Ignore response files from MSVS
- elsif /^Using tempfile/.match(line)
- skip_nth_line = 2
- else
- build_lines << line
- end
-
- when :dependencies
- # Work around bug in SCons that splits output over multiple lines
- next unless /^[\s|]+\+\-/.match(line)
-
- level = line.index('+-') / 2
- file = line[level*2+2..-1]
- file = file[1..-2] if file.start_with? '['
-
- # Check if we use the 'fixed' format which escapes filenames
- file = eval('"' + file[1..-2].gsub('"', '\\"') + '"') if file.start_with? '\''
-
- if level < stack.length
- stack = stack[0..level-1]
- elsif level > stack.length
- raise "Internal Error" if level != stack.length + 1
- stack << previous_file
- end
- # Skip absolute paths
- $dependencies[stack[-1]] << file unless Pathname.new(file).absolute?
- previous_file = file
- end
- end
-
- unless thread.value.success?
- print "Error calling '#{scons_generate_cmd}': "
- print stderr.read
- exit(-1)
- end
-end
-
-# Pass 2: Parse build rules
-tools = {}
-build_lines.each do |line|
- # Custom python function
- if m = /^(\w+)\(\[([^\]]*)\]/.match(line)
- out = m[2].split(',').map { |x| x[1..-2] }
- out.each do |x|
- # Note: To be more correct, deps should also include $scons_dependencies,
- # but this regenerates a bit too often, so leaving it out for now.
- ninja.build x, 'scons', nil, deps: get_dependencies(x, ninja.targets)
- end
-
- # TextFile
- elsif m = /^Creating '([^']+)'/.match(line)
- out = m[1]
- # Note: To be more correct, deps should also include $scons_dependencies,
- # but this regenerates a bit too often, so leaving it out for now.
- ninja.build out, 'scons', nil, deps: get_dependencies(out, ninja.targets)
-
- # Install
- elsif m = /^Install file: "(.*)" as "(.*)"/.match(line)
- ninja.build m[2], 'install', m[1]
-
- elsif m = /^Install directory: "(.*)" as "(.*)"/.match(line)
- Dir["#{m[1]}/**"].each do |file|
- source = Pathname.new(file)
- native_source = to_native_path(source.to_s)
- target = Pathname.new(m[2]) + source.relative_path_from(Pathname.new(m[1]))
- native_target = to_native_path(target.to_s)
- ninja.build native_target, 'install', native_source
- end
-
- # Tools
- else
- command = line.split
- flags = command[1..-1]
- tool = File.basename(command[0], File.extname(command[0]))
- tool = "cxx" if ["clang++", "g++"].include? tool
- tool = "cc" if ["clang", "gcc"].include? tool
- tool = "glink" if ["cc", "cxx"].include? tool and not flags.include? "-c"
- tool.gsub!(/-qt4$/, '')
- tools[tool] = command[0]
-
- case tool
-
- ############################################################
- # clang/gcc tools
- ############################################################
-
- when 'cc'
- out, flags = extract_binary_flag("-o", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'cc', files, order_deps: '_generated_headers', ccflags: flags
-
- when 'cxx'
- out, flags = extract_binary_flag("-o", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'cxx', files, order_deps: '_generated_headers', cxxflags: flags
-
- when 'glink'
- out, flags = extract_binary_flag("-o", flags)
- files, flags = extract_non_flags(flags)
- libs = get_unary_flags('-l', flags)
- libpaths = get_unary_flags("-L", flags)
- dependencies = get_built_libs(libs, libpaths, ninja.targets)
- ninja.build out, 'link', files, deps: dependencies, linkflags: flags
-
- when 'ar'
- objects, flags = flags.partition { |x| x.end_with? ".o" }
- libs, flags = flags.partition { |x| x.end_with? ".a" }
- out = libs[0]
- ninja.build out, 'ar', objects, arflags: flags
-
- when 'ranlib'
-
-
- ############################################################
- # MSVC tools
- ############################################################
-
- when 'cl'
- out, flags = extract_unary_flag("/Fo", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'cl', files, order_deps: '_generated_headers', clflags: flags
-
- when 'lib'
- out, flags = extract_unary_flag("/out:", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'lib', files, libflags: flags
-
- when 'link'
- objects, flags = flags.partition { |x| x.end_with? ".obj" }
- out, flags = extract_unary_flag("/out:", flags)
- libs, flags = flags.partition { |x| not x.start_with? "/" and x.end_with? ".lib" }
- libpaths = get_unary_flags("/libpath:", flags)
- dependencies = get_built_libs(libs, libpaths, ninja.targets)
- ninja.build out, 'link', objects, deps: dependencies,
- libs: libs, linkflags: flags
-
- when 'rc'
- out, flags = extract_unary_flag("/fo", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'rc', files[0], order_deps: '_generated_headers', rcflags: flags
-
- ############################################################
- # Qt tools
- ############################################################
-
- when 'moc'
- out, flags = extract_binary_flag("-o", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'moc', files, mocflags: flags
-
- when 'uic'
- out, flags = extract_binary_flag("-o", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'uic', files, uicflags: flags
-
- when 'lrelease'
- out, flags = extract_binary_flag("-qm", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'lrelease', files, lreleaseflags: flags
-
- when 'rcc'
- out, flags = extract_binary_flag("-o", flags)
- name, flags = extract_binary_flag("-name", flags)
- files, flags = extract_non_flags(flags)
- deps = get_dependencies(out, ninja.targets) - files
- ninja.build out, 'rcc', files, deps: deps, name: name, rccflags: flags
-
- ############################################################
- # OS X tools
- ############################################################
-
- when 'ibtool'
- out, flags = extract_binary_flag("--compile", flags)
- files, flags = extract_non_flags(flags)
- ninja.build out, 'ibtool', files, ibtoolflags: flags
-
- else
- raise "Unknown tool: '#{line}'"
- end
- end
-end
-
-# Phony target for all generated headers, used as an order-only dependency from all C/C++ sources
-ninja.build '_generated_headers', 'phony', ninja.header_targets
-
-# Regenerate build.ninja file
-ninja.build 'build.ninja', 'generator', [], deps: [script, CONFIGURATION_FILE] + $scons_dependencies
-
-# Header & variables
-ninja.header "# This file is generated by #{script}"
-ninja.variable "ninja_required_version", "1.3"
-ninja.variable "generator_args", generator_args
-tools.each { |k, v| ninja.variable k, v }
-
-# Extra customizations
-$ninja_post.each { |p| p.call(ninja) }
-
-################################################################################
-# Result
-################################################################################
-
-File.open('build.ninja', 'w') { |f| f.write ninja }