#!/usr/bin/python3 -tt # Copyright 2012 Jussi Pakkanen # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import os, sys, re, pickle import interpreter, nodes import environment from meson_install import InstallData from interpreter import InvalidArguments if environment.is_windows(): quote_char = '"' execute_wrapper = 'cmd /c' else: quote_char = "'" execute_wrapper = '' def ninja_quote(text): return text.replace(' ', '$ ') def do_replacement(regex, line, variables): match = re.search(regex, line) while match: varname = match.group(1) if varname in variables: var = variables[varname] if isinstance(var, str): pass elif isinstance(var, nodes.StringStatement): var = var.get_value() else: raise RuntimeError('Tried to replace a variable with something other than a string.') else: var = '' line = line.replace('@' + varname + '@', var) match = re.search(regex, line) return line def do_mesondefine(line, variables): arr = line.split() if len(arr) != 2: raise interpreter.InvalidArguments('#mesondefine does not contain exactly two tokens.') varname = arr[1] v = variables.get(varname, False) if isinstance(v, bool): value= v elif isinstance(v, nodes.BoolStatement): value = v.get_value() else: raise interpreter.InvalidArguments('#mesondefine argument "%s" is not boolean.' % varname) if value: return '#define %s\n' % varname return '/* undef %s */\n' % varname def do_conf_file(src, dst, variables): data = open(src).readlines() regex = re.compile('@(.*?)@') result = [] for line in data: if line.startswith('#mesondefine'): line = do_mesondefine(line, variables) else: line = do_replacement(regex, line, variables) result.append(line) dst_tmp = dst + '~' open(dst_tmp, 'w').writelines(result) # If contents are identical, don't touch the file to prevent # unnecessary rebuilds. try: if open(dst, 'r').read() == open(dst_tmp, 'r').read(): return except FileNotFoundError: pass os.replace(dst_tmp, dst) # It may seem a bit silly that this Backend class exists on its own # rather than being a part of NinjaBackend, which is the only class # that uses Backend. The point is that common functionality # that will be used in XCode, Visual Studio etc will be in # this one. Once work on that code starts the exact division # of labor between the classes is determined. class Backend(): def __init__(self, build, interp): self.build = build self.environment = build.environment self.interpreter = interp self.processed_targets = {} self.dep_rules = {} self.build_to_src = os.path.relpath(self.environment.get_source_dir(), self.environment.get_build_dir()) def get_compiler_for_source(self, src): for i in self.build.compilers: if i.can_compile(src): return i raise RuntimeError('No specified compiler can handle file ' + src) def get_target_filename(self, target): targetdir = self.get_target_dir(target) filename = os.path.join(targetdir, target.get_filename()) return filename def get_target_dir(self, target): dirname = target.get_subdir() os.makedirs(os.path.join(self.environment.get_build_dir(), dirname), exist_ok=True) return dirname def get_target_private_dir(self, target): dirname = os.path.join(self.get_target_dir(target), target.get_basename() + '.dir') os.makedirs(os.path.join(self.environment.get_build_dir(), dirname), exist_ok=True) return dirname def generate_target(self, target, outfile): name = target.get_basename() if name in self.processed_targets: return (gen_src_deps, gen_other_deps) = self.process_dep_gens(outfile, target) self.process_target_dependencies(target, outfile) print('Generating target', name) self.generate_custom_generator_rules(target, outfile) outname = self.get_target_filename(target) obj_list = [] if target.has_pch(): self.generate_pch(target, outfile) header_deps = gen_other_deps for genlist in target.get_generated_sources(): for src in genlist.get_outfilelist(): if not self.environment.is_header(src): obj_list.append(self.generate_single_compile(target, outfile, src, True)) else: header_deps.append(src) for src in gen_src_deps: obj_list.append(self.generate_single_compile(target, outfile, src, True)) for src in target.get_sources(): if not self.environment.is_header(src): obj_list.append(self.generate_single_compile(target, outfile, src, False, header_deps)) elem = self.generate_link(target, outfile, outname, obj_list) self.generate_shlib_aliases(target, self.get_target_dir(target), outfile, elem) self.processed_targets[name] = True def process_target_dependencies(self, target, outfile): for t in target.get_dependencies(): tname = t.get_basename() if not tname in self.processed_targets: self.generate_target(t, outfile) def get_pch_include_args(self, compiler, target): args = [] pchpath = self.get_target_private_dir(target) includearg = compiler.get_include_arg(pchpath) for p in target.get_pch(): if compiler.can_compile(p): args.append('-include') args.append(os.path.split(p)[-1]) if len(args) > 0: args = [includearg] + args return args def generate_basic_compiler_flags(self, target, compiler): commands = [] commands += self.build.get_global_flags(compiler) commands += target.get_extra_args(compiler.get_language()) if self.environment.coredata.buildtype != 'plain': commands += compiler.get_debug_flags() commands += compiler.get_std_warn_flags() if self.environment.coredata.buildtype == 'optimized': commands += compiler.get_std_opt_flags() if self.environment.coredata.coverage: commands += compiler.get_coverage_flags() if isinstance(target, interpreter.SharedLibrary): commands += compiler.get_pic_flags() for dep in target.get_external_deps(): commands += dep.get_compile_flags() if isinstance(target, interpreter.Executable): commands += dep.get_exe_flags() return commands def build_target_link_arguments(self, deps): args = [] for d in deps: if not isinstance(d, interpreter.StaticLibrary) and\ not isinstance(d, interpreter.SharedLibrary): raise RuntimeError('Tried to link with a non-library target "%s".' % d.get_basename()) fname = self.get_target_filename(d) fname = './' + fname # Hack to make ldd find the library. args.append(fname) return args def generate_configure_files(self): for cf in self.build.get_configure_files(): infile = os.path.join(self.environment.get_source_dir(), cf.get_subdir(), cf.get_source_name()) outdir = os.path.join(self.environment.get_build_dir(), cf.get_subdir()) os.makedirs(outdir, exist_ok=True) outfile = os.path.join(outdir, cf.get_target_name()) do_conf_file(infile, outfile, self.interpreter.get_variables()) class NinjaBuildElement(): def __init__(self, outfilenames, rule, infilenames): if isinstance(outfilenames, str): self.outfilenames = [outfilenames] else: self.outfilenames = outfilenames self.rule = rule if isinstance(infilenames, str): self.infilenames = [infilenames] else: self.infilenames = infilenames self.deps = [] self.orderdeps = [] self.elems = [] def add_dep(self, dep): if isinstance(dep, list): self.deps += dep else: self.deps.append(dep) def add_orderdep(self, dep): if isinstance(dep, list): self.orderdeps += dep else: self.orderdeps.append(dep) def add_item(self, name, elems): if isinstance(elems, str): elems = [elems] self.elems.append((name, elems)) def write(self, outfile): line = 'build %s: %s %s' % (' '.join([ninja_quote(i) for i in self.outfilenames]),\ self.rule, ' '.join([ninja_quote(i) for i in self.infilenames])) if len(self.deps) > 0: line += ' | ' + ' '.join([ninja_quote(x) for x in self.deps]) if len(self.orderdeps) > 0: line += ' || ' + ' '.join([ninja_quote(x) for x in self.orderdeps]) line += '\n' outfile.write(line) for e in self.elems: (name, elems) = e should_quote = True if name == 'DEPFILE' or name == 'DESC': should_quote = False line = ' %s = ' % name q_templ = quote_char + "%s" + quote_char noq_templ = "%s" newelems = [] for i in elems: if not should_quote or i == '&&': # Hackety hack hack templ = noq_templ else: templ = q_templ newelems.append(templ % ninja_quote(i)) line += ' '.join(newelems) line += '\n' outfile.write(line) outfile.write('\n') class NinjaBackend(Backend): def __init__(self, build, interp): Backend.__init__(self, build, interp) self.ninja_filename = 'build.ninja' def generate(self): outfilename = os.path.join(self.environment.get_build_dir(), self.ninja_filename) tempfilename = outfilename + '~' outfile = open(tempfilename, 'w') self.generate_configure_files() outfile.write('# This is the build file for project "%s"\n' % self.build.get_project()) outfile.write('# It is autogenerated by the Meson build system.\n') outfile.write('# Do not edit by hand.\n\n') self.generate_rules(outfile) outfile.write('# Build rules for targets\n\n') [self.generate_target(t, outfile) for t in self.build.get_targets().values()] outfile.write('# Test rules\n\n') self.generate_tests(outfile) outfile.write('# Install rules\n\n') self.generate_install(outfile) if self.environment.coredata.coverage: outfile.write('# Coverage rules\n\n') self.generate_coverage_rules(outfile) outfile.write('# Suffix\n\n') self.generate_ending(outfile) # Only ovewrite the old build file after the new one has been # fully created. outfile.close() os.replace(tempfilename, outfilename) def generate_coverage_rules(self, outfile): (gcovr_exe, lcov_exe, genhtml_exe) = environment.find_coverage_tools() added_rule = False if gcovr_exe: added_rule = True elem = NinjaBuildElement('coverage-xml', 'CUSTOM_COMMAND', '') elem.add_item('COMMAND', [gcovr_exe, '-x', '-r', self.environment.get_build_dir(),\ '-o', 'coverage.xml']) elem.add_item('DESC', 'Generating XML coverage report.') elem.write(outfile) elem = NinjaBuildElement('coverage-text', 'CUSTOM_COMMAND', '') elem.add_item('COMMAND', [gcovr_exe, '-r', self.environment.get_build_dir(),\ '-o', 'coverage.txt']) elem.add_item('DESC', 'Generating text coverage report.') elem.write(outfile) if lcov_exe and genhtml_exe: added_rule = True phony_elem = NinjaBuildElement('coverage-html', 'phony', 'coveragereport/index.html') phony_elem.write(outfile) elem = NinjaBuildElement('coveragereport/index.html', 'CUSTOM_COMMAND', '') command = [lcov_exe, '--directory', self.environment.get_build_dir(),\ '--capture', '--output-file', 'coverage.info', '--no-checksum',\ '&&', genhtml_exe, '--prefix', self.environment.get_build_dir(),\ '--output-directory', 'coveragereport', '--title', 'Code coverage',\ '--legend', '--show-details', 'coverage.info'] elem.add_item('COMMAND', command) elem.add_item('DESC', 'Generating HTML coverage report.') elem.write(outfile) if not added_rule: print('Warning: coverage requested but neither gcovr nor lcov/genhtml found.') def generate_install(self, outfile): script_root = self.environment.get_script_dir() install_script = os.path.join(script_root, 'meson_install.py') install_data_file = os.path.join(self.environment.get_scratch_dir(), 'install.dat') depfixer = os.path.join(script_root, 'depfixer.py') d = InstallData(self.environment.get_prefix(), depfixer, './') # Fixme elem = NinjaBuildElement('install', 'CUSTOM_COMMAND', '') elem.add_dep('all') elem.add_item('DESC', 'Installing files.') elem.add_item('COMMAND', [sys.executable, install_script, install_data_file]) elem.write(outfile) self.generate_target_install(d) self.generate_header_install(d) self.generate_man_install(d) self.generate_data_install(d) ofile = open(install_data_file, 'wb') pickle.dump(d, ofile) def generate_target_install(self, d): libdir = self.environment.get_libdir() bindir = self.environment.get_bindir() should_strip = self.environment.coredata.strip for t in self.build.get_targets().values(): if t.should_install(): if isinstance(t, interpreter.Executable): outdir = bindir else: outdir = libdir i = [self.get_target_filename(t), outdir, t.get_aliaslist(), should_strip] d.targets.append(i) def generate_header_install(self, d): incroot = self.environment.get_includedir() headers = self.build.get_headers() for h in headers: outdir = os.path.join(incroot, h.get_subdir()) for f in h.get_sources(): abspath = os.path.join(self.environment.get_source_dir(), f) # FIXME i = [abspath, outdir] d.headers.append(i) def generate_man_install(self, d): manroot = self.environment.get_mandir() man = self.build.get_man() for m in man: for f in m.get_sources(): num = f.split('.')[-1] subdir = 'man' + num srcabs = os.path.join(self.environment.get_source_dir(), f) dstabs = os.path.join(manroot, os.path.join(subdir, f + '.gz')) i = [srcabs, dstabs] d.man.append(i) def generate_data_install(self, d): dataroot = self.environment.get_datadir() data = self.build.get_data() for de in data: subdir = os.path.join(dataroot, de.get_subdir()) for f in de.get_sources(): srcabs = os.path.join(self.environment.get_source_dir(), f) dstabs = os.path.join(subdir, f) i = [srcabs, dstabs] d.data.append(i) def generate_tests(self, outfile): valgrind = environment.find_valgrind() script_root = self.environment.get_script_dir() test_script = os.path.join(script_root, 'meson_test.py') test_data = os.path.join(self.environment.get_scratch_dir(), 'meson_test_setup.dat') cmd = [sys.executable, test_script, test_data] elem = NinjaBuildElement('test', 'CUSTOM_COMMAND', 'all') elem.add_item('COMMAND', cmd) elem.add_item('DESC', 'Running test suite.') elem.write(outfile) if valgrind: velem = NinjaBuildElement('test-valgrind', 'CUSTOM_COMMAND', 'all') velem.add_item('COMMAND', cmd + ['--wrapper=' + valgrind]) velem.add_item('DESC', 'Running test suite under Valgrind.') velem.write(outfile) datafile = open(test_data, 'w') for t in self.build.get_tests(): datafile.write(self.get_target_filename(t.get_exe()) + '\n') datafile.close() def generate_dep_gen_rules(self, outfile): outfile.write('# Rules for external dependency generators.\n\n') processed = {} for dep in self.environment.coredata.deps.values(): name = dep.get_name() if name in processed: continue processed[name] = True for rule in dep.get_generate_rules(): outfile.write('rule %s\n' % rule.name) command = ' '.join([ninja_quote(x) for x in rule.cmd_list]) command = command.replace('@INFILE@', '$in').replace('@OUTFILE@', '$out') command = command.replace('@SOURCE_ROOT@', self.environment.get_source_dir()) command = command.replace('@BUILD_ROOT@', self.environment.get_build_dir()) outfile.write(' command = %s\n' % command) desc = rule.description.replace('@INFILE@', '$in') outfile.write(' description = %s\n' % desc) if rule.src_keyword in self.dep_rules: raise InvalidArguments('Multiple rules for keyword %s.' % rule.src_keyword) self.dep_rules[rule.src_keyword] = rule outfile.write('\n') def generate_rules(self, outfile): outfile.write('# Rules for compiling.\n\n') self.generate_compile_rules(outfile) outfile.write('# Rules for linking.\n\n') self.generate_static_link_rules(outfile) self.generate_dynamic_link_rules(outfile) self.generate_dep_gen_rules(outfile) outfile.write('# Other rules\n\n') outfile.write('rule CUSTOM_COMMAND\n') outfile.write(' command = $COMMAND\n') outfile.write(' description = $DESC\n') outfile.write(' restat = 1\n\n') outfile.write('rule REGENERATE_BUILD\n') c = (sys.executable, ninja_quote(self.environment.get_build_command()), ninja_quote(self.environment.get_source_dir()), ninja_quote(self.environment.get_build_dir())) outfile.write(" command = '%s' '%s' '%s' '%s' --backend ninja\n" % c) outfile.write(' description = Regenerating build files\n') outfile.write(' generator = 1\n\n') def generate_static_link_rules(self, outfile): static_linker = self.build.static_linker rule = 'rule STATIC_LINKER\n' command = ' command = %s $LINK_FLAGS $out $in\n' % \ ' '.join(static_linker.get_exelist()) description = ' description = Static linking library $out\n\n' outfile.write(rule) outfile.write(command) outfile.write(description) def generate_dynamic_link_rules(self, outfile): for compiler in self.build.compilers: langname = compiler.get_language() rule = 'rule %s_LINKER\n' % langname command = ' command = %s %s $FLAGS %s $out $in $LINK_FLAGS $aliasing\n' % \ (execute_wrapper, ' '.join(compiler.get_exelist()),\ ' '.join(compiler.get_output_flags())) description = ' description = Linking target $out' outfile.write(rule) outfile.write(command) outfile.write(description) outfile.write('\n') outfile.write('\n') def generate_compile_rules(self, outfile): qstr = quote_char + "%s" + quote_char for compiler in self.build.compilers: langname = compiler.get_language() rule = 'rule %s_COMPILER\n' % langname depflags = compiler.get_dependency_gen_flags('$out', '$DEPFILE') command = " command = %s $FLAGS %s %s $out %s $in\n" % \ (' '.join(compiler.get_exelist()),\ ' '.join([qstr % d for d in depflags]),\ ' '.join(compiler.get_output_flags()),\ ' '.join(compiler.get_compile_only_flags())) description = ' description = Compiling %s object $out\n' % langname dep = ' depfile = $DEPFILE\n' outfile.write(rule) outfile.write(command) outfile.write(dep) outfile.write(description) outfile.write('\n') outfile.write('\n') def generate_custom_generator_rules(self, target, outfile): for genlist in target.get_generated_sources(): generator = genlist.get_generator() exe = generator.get_exe() infilelist = genlist.get_infilelist() outfilelist = genlist.get_outfilelist() if len(infilelist) != len(outfilelist): raise RuntimeError('Internal data structures broken.') if isinstance(exe, interpreter.BuildTarget): exe_file = os.path.join(self.environment.get_build_dir(), self.get_target_filename(exe)) else: exe_file = exe.get_command() base_args = generator.get_arglist() for i in range(len(infilelist)): infilename = os.path.join(self.build_to_src, infilelist[i]) outfilename = os.path.join(self.get_target_private_dir(target), outfilelist[i]) args = [x.replace("@INPUT@", infilename).replace('@OUTPUT@', outfilename)\ for x in base_args] cmdlist = [exe_file] + args elem = NinjaBuildElement(outfilename, 'CUSTOM_COMMAND', infilename) elem.add_item('DESC', 'Generating $out') if isinstance(exe, interpreter.BuildTarget): elem.add_dep(self.get_target_filename(exe)) elem.add_item('COMMAND', cmdlist) elem.write(outfile) def generate_single_compile(self, target, outfile, src, is_generated=False, header_deps=[]): compiler = self.get_compiler_for_source(src) commands = self.generate_basic_compiler_flags(target, compiler) commands.append(compiler.get_include_arg(self.get_target_private_dir(target))) if is_generated: if '/' in src: rel_src = src else: rel_src = os.path.join(self.get_target_private_dir(target), src) else: rel_src = os.path.join(self.build_to_src, target.get_source_subdir(), src) if os.path.isabs(src): src_filename = os.path.basename(src) else: src_filename = src rel_obj = os.path.join(self.get_target_private_dir(target), os.path.basename(src_filename)) rel_obj += '.' + self.environment.get_object_suffix() dep_file = rel_obj + '.' + compiler.get_depfile_suffix() pchlist = target.get_pch() if len(pchlist) == 0: pch_dep = [] else: arr = [] for pch in pchlist: i = os.path.join(self.get_target_private_dir(target), os.path.split(pch)[-1] + '.' + compiler.get_pch_suffix()) arr.append(i) pch_dep = arr for i in target.get_include_dirs(): basedir = i.get_curdir() for d in i.get_incdirs(): expdir = os.path.join(basedir, d) fulldir = os.path.join(self.environment.get_source_dir(), expdir) barg = compiler.get_include_arg(expdir) sarg = compiler.get_include_arg(fulldir) commands.append(barg) commands.append(sarg) commands += self.get_pch_include_args(compiler, target) compiler_name = '%s_COMPILER' % compiler.get_language() element = NinjaBuildElement(rel_obj, compiler_name, rel_src) for d in header_deps: if not '/' in d: d = os.path.join(self.get_target_private_dir(target), d) element.add_dep(d) element.add_orderdep(pch_dep) element.add_item('DEPFILE', dep_file) element.add_item('FLAGS', commands) element.write(outfile) return rel_obj def generate_pch(self, target, outfile): for pch in target.get_pch(): if '/' not in pch: raise interpreter.InvalidArguments('Precompiled header of "%s" must not be in the same direcotory as source, please put it in a subdirectory.' % target.get_basename()) compiler = self.get_compiler_for_source(pch) commands = [] commands += self.generate_basic_compiler_flags(target, compiler) src = os.path.join(self.build_to_src, target.get_source_subdir(), pch) dst = os.path.join(self.get_target_private_dir(target), os.path.split(pch)[-1] + '.' + compiler.get_pch_suffix()) dep = dst + '.' + compiler.get_depfile_suffix() elem = NinjaBuildElement(dst, compiler.get_language() + '_COMPILER', src) elem.add_item('FLAGS', commands) elem.add_item('DEPFILE', dep) elem.write(outfile) def generate_link(self, target, outfile, outname, obj_list): if isinstance(target, interpreter.StaticLibrary): linker = self.build.static_linker linker_base = 'STATIC' else: linker = self.build.compilers[0] linker_base = linker.get_language() # Fixme. linker_rule = linker_base + '_LINKER' commands = [] if isinstance(target, interpreter.Executable): commands += linker.get_std_exe_link_flags() elif isinstance(target, interpreter.SharedLibrary): commands += linker.get_std_shared_lib_link_flags() commands += linker.get_pic_flags() elif isinstance(target, interpreter.StaticLibrary): commands += linker.get_std_link_flags() else: raise RuntimeError('Unknown build target type.') for dep in target.get_external_deps(): commands += dep.get_link_flags() dependencies = target.get_dependencies() commands += self.build_target_link_arguments(dependencies) if self.environment.coredata.coverage: commands += linker.get_coverage_link_flags() dep_targets = [self.get_target_filename(t) for t in dependencies] elem = NinjaBuildElement(outname, linker_rule, obj_list) elem.add_dep(dep_targets) elem.add_item('LINK_FLAGS', commands) return elem def generate_shlib_aliases(self, target, outdir, outfile, elem): basename = target.get_filename() aliases = target.get_aliaslist() aliascmd = [] for alias in aliases: aliasfile = os.path.join(outdir, alias) cmd = ["&&", 'ln', '-s', '-f', basename, aliasfile] aliascmd += cmd elem.add_item('aliasing', aliascmd) elem.write(outfile) def generate_gcov_clean(self, outfile): gcno_elem = NinjaBuildElement('clean-gcno', 'CUSTOM_COMMAND', '') script_root = self.environment.get_script_dir() clean_script = os.path.join(script_root, 'delwithsuffix.py') gcno_elem.add_item('COMMAND', [sys.executable, clean_script, '.', 'gcno']) gcno_elem.add_item('description', 'Deleting gcno files') gcno_elem.write(outfile) gcda_elem = NinjaBuildElement('clean-gcda', 'CUSTOM_COMMAND', '') script_root = self.environment.get_script_dir() clean_script = os.path.join(script_root, 'delwithsuffix.py') gcda_elem.add_item('COMMAND', [sys.executable, clean_script, '.', 'gcda']) gcda_elem.add_item('description', 'Deleting gcda files') gcda_elem.write(outfile) def is_compilable_file(self, filename): if filename.endswith('.cpp') or\ filename.endswith('.c') or\ filename.endswith('.cxx') or\ filename.endswith('.cc') or\ filename.endswith('.C'): return True return False def process_dep_gens(self, outfile, target): src_deps = [] other_deps = [] for rule in self.dep_rules.values(): srcs = target.get_original_kwargs().get(rule.src_keyword, []) if isinstance(srcs, str): srcs = [srcs] for src in srcs: plainname = os.path.split(src)[1] basename = plainname.split('.')[0] outname = rule.name_templ.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname) outfilename = os.path.join(self.get_target_private_dir(target), outname) infilename = os.path.join(self.build_to_src, target.get_source_subdir(), src) rule = rule.name elem = NinjaBuildElement(outfilename, rule, infilename) elem.write(outfile) if self.is_compilable_file(outfilename): src_deps.append(outfilename) else: other_deps.append(outfilename) return (src_deps, other_deps) def generate_ending(self, outfile): targetlist = [self.get_target_filename(t) for t in self.build.get_targets().values()] elem = NinjaBuildElement('all', 'phony', targetlist) elem.write(outfile) default = 'default all\n\n' outfile.write(default) elem = NinjaBuildElement('clean', 'CUSTOM_COMMAND', '') elem.add_item('COMMAND', ['ninja', '-t', 'clean']) elem.add_item('description', 'Cleaning') if self.environment.coredata.coverage: self.generate_gcov_clean(outfile) elem.add_dep('clean-gcda') elem.add_dep('clean-gcno') elem.write(outfile) deps = [os.path.join(self.build_to_src, df) \ for df in self.interpreter.get_build_def_files()] elem = NinjaBuildElement('build.ninja', 'REGENERATE_BUILD', deps) elem.write(outfile) elem = NinjaBuildElement(deps, 'phony', '') elem.write(outfile)