def generate_spec_template(self, state, args, kwargs):
        compiler_deps = set()
        for compiler in state.compilers:
            if isinstance(compiler, compilers.GnuCCompiler):
                compiler_deps.add('gcc')
            elif isinstance(compiler, compilers.GnuCPPCompiler):
                compiler_deps.add('gcc-c++')
            elif isinstance(compiler, compilers.ValaCompiler):
                compiler_deps.add('vala')
            elif isinstance(compiler, compilers.GnuFortranCompiler):
                compiler_deps.add('gcc-gfortran')
            elif isinstance(compiler, compilers.GnuObjCCompiler):
                compiler_deps.add('gcc-objc')
            elif compiler == compilers.GnuObjCPPCompiler:
                compiler_deps.add('gcc-objc++')
            else:
                mlog.log('RPM spec file will not created, generating not allowed for:',
                         mlog.bold(compiler.get_id()))
                return
        proj = state.project_name.replace(' ', '_').replace('\t', '_')
        so_installed = False
        devel_subpkg = False
        files = set()
        files_devel = set()
        to_delete = set()
        for target in state.targets.values():
            if isinstance(target, build.Executable) and target.need_install:
                files.add('%%{_bindir}/%s' % target.get_filename())
            elif isinstance(target, build.SharedLibrary) and target.need_install:
                files.add('%%{_libdir}/%s' % target.get_filename())
                for alias in target.get_aliaslist():
                    if alias.endswith('.so'):
                        files_devel.add('%%{_libdir}/%s' % alias)
                    else:
                        files.add('%%{_libdir}/%s' % alias)
                so_installed = True
            elif isinstance(target, build.StaticLibrary) and target.need_install:
                to_delete.add('%%{buildroot}%%{_libdir}/%s' % target.get_filename())
                mlog.log('Warning, removing', mlog.bold(target.get_filename()),
                         'from package because packaging static libs not recommended')
            elif isinstance(target, gnome.GirTarget) and target.should_install():
                files_devel.add('%%{_datadir}/gir-1.0/%s' % target.get_filename()[0])
            elif isinstance(target, gnome.TypelibTarget) and target.should_install():
                files.add('%%{_libdir}/girepository-1.0/%s' % target.get_filename()[0])
        for header in state.headers:
            if len(header.get_install_subdir()) > 0:
                files_devel.add('%%{_includedir}/%s/' % header.get_install_subdir())
            else:
                for hdr_src in header.get_sources():
                    files_devel.add('%%{_includedir}/%s' % hdr_src)
        for man in state.man:
            for man_file in man.get_sources():
                files.add('%%{_mandir}/man%u/%s.*' % (int(man_file.split('.')[-1]), man_file))
        if len(files_devel) > 0:
            devel_subpkg = True
        fn = open('%s.spec' % os.path.join(state.environment.get_build_dir(), proj), 'w+')
        fn.write('Name: %s\n' % proj)
        fn.write('Version: # FIXME\n')
        fn.write('Release: 1%{?dist}\n')
        fn.write('Summary: # FIXME\n')
        fn.write('License: # FIXME\n')
        fn.write('\n')
        fn.write('Source0: %{name}-%{version}.tar.xz # FIXME\n')
        fn.write('\n')
        for compiler in compiler_deps:
            fn.write('BuildRequires: %s\n' % compiler)
        for dep in state.environment.coredata.deps:
            fn.write('BuildRequires: pkgconfig(%s)\n' % dep)
        for lib in state.environment.coredata.ext_libs.values():
            fn.write('BuildRequires: %s # FIXME\n' % lib.fullpath)
            mlog.log('Warning, replace', mlog.bold(lib.fullpath), 'with real package.',
                     'You can use following command to find package which contains this lib:',
                     mlog.bold('dnf provides %s' % lib.fullpath))
        for prog in state.environment.coredata.ext_progs.values():
            if not prog.found():
                fn.write('BuildRequires: /usr/bin/%s # FIXME\n' % prog.get_name())
            else:
                fn.write('BuildRequires: %s\n' % ' '.join(prog.fullpath))
        fn.write('BuildRequires: meson\n')
        fn.write('\n')
        fn.write('%description\n')
        fn.write('\n')
        if devel_subpkg:
            fn.write('%package devel\n')
            fn.write('Summary: Development files for %{name}\n')
            fn.write('Requires: %{name}%{?_isa} = %{version}-%{release}\n')
            fn.write('\n')
            fn.write('%description devel\n')
            fn.write('Development files for %{name}.\n')
            fn.write('\n')
        fn.write('%prep\n')
        fn.write('%autosetup\n')
        fn.write('rm -rf rpmbuilddir && mkdir rpmbuilddir\n')
        fn.write('\n')
        fn.write('%build\n')
        fn.write('pushd rpmbuilddir\n')
        fn.write('  %meson ..\n')
        fn.write('  ninja-build -v\n')
        fn.write('popd\n')
        fn.write('\n')
        fn.write('%install\n')
        fn.write('pushd rpmbuilddir\n')
        fn.write('  DESTDIR=%{buildroot} ninja-build -v install\n')
        fn.write('popd\n')
        if len(to_delete) > 0:
            fn.write('rm -rf %s\n' % ' '.join(to_delete))
        fn.write('\n')
        fn.write('%check\n')
        fn.write('pushd rpmbuilddir\n')
        fn.write('  ninja-build -v test\n')
        fn.write('popd\n')
        fn.write('\n')
        fn.write('%files\n')
        for f in files:
            fn.write('%s\n' % f)
        fn.write('\n')
        if devel_subpkg:
            fn.write('%files devel\n')
            for f in files_devel:
                fn.write('%s\n' % f)
            fn.write('\n')
        if so_installed:
            fn.write('%post -p /sbin/ldconfig\n')
            fn.write('\n')
            fn.write('%postun -p /sbin/ldconfig\n')
        fn.write('\n')
        fn.write('%changelog\n')
        fn.write('* %s meson <meson@example.com> - \n' % datetime.date.today().strftime('%a %b %d %Y'))
        fn.write('- \n')
        fn.write('\n')
        fn.close()
        mlog.log('RPM spec template written to %s.spec.\n' % proj)
dataset/ETHPy150Open mesonbuild/meson/mesonbuild/modules/rpm.py/RPMModule.generate_spec_template/original