diff options
Diffstat (limited to 'mesonbuild/coredata.py')
| -rw-r--r-- | mesonbuild/coredata.py | 73 |
1 files changed, 64 insertions, 9 deletions
diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py index 94f977f..329c333 100644 --- a/mesonbuild/coredata.py +++ b/mesonbuild/coredata.py @@ -12,7 +12,7 @@ # See the License for the specific language governing permissions and # limitations under the License. -from . import mlog +from . import mlog, mparser import pickle, os, uuid import sys from itertools import chain @@ -229,14 +229,6 @@ class UserFeatureOption(UserComboOption): def is_auto(self): return self.value == 'auto' - -def load_configs(filenames: T.List[str]) -> configparser.ConfigParser: - """Load configuration files from a named subdirectory.""" - config = configparser.ConfigParser(interpolation=None) - config.read(filenames) - return config - - if T.TYPE_CHECKING: CacheKeyType = T.Tuple[T.Tuple[T.Any, ...], ...] SubCacheKeyType = T.Tuple[T.Any, ...] @@ -879,6 +871,69 @@ class CmdLineFileParser(configparser.ConfigParser): # storing subproject options like "subproject:option=value" super().__init__(delimiters=['='], interpolation=None) +class MachineFileParser(): + def __init__(self, filenames: T.List[str]): + self.parser = CmdLineFileParser() + self.constants = {'True': True, 'False': False} + self.sections = {} + + self.parser.read(filenames) + + # Parse [constants] first so they can be used in other sections + if self.parser.has_section('constants'): + self.constants.update(self._parse_section('constants')) + + for s in self.parser.sections(): + if s == 'constants': + continue + self.sections[s] = self._parse_section(s) + + def _parse_section(self, s): + self.scope = self.constants.copy() + section = {} + for entry, value in self.parser.items(s): + if ' ' in entry or '\t' in entry or "'" in entry or '"' in entry: + raise EnvironmentException('Malformed variable name {!r} in machine file.'.format(entry)) + # Windows paths... + value = value.replace('\\', '\\\\') + try: + ast = mparser.Parser(value, 'machinefile').parse() + res = self._evaluate_statement(ast.lines[0]) + except MesonException: + raise EnvironmentException('Malformed value in machine file variable {!r}.'.format(entry)) + except KeyError as e: + raise EnvironmentException('Undefined constant {!r} in machine file variable {!r}.'.format(e.args[0], entry)) + section[entry] = res + self.scope[entry] = res + return section + + def _evaluate_statement(self, node): + if isinstance(node, (mparser.StringNode)): + return node.value + elif isinstance(node, mparser.BooleanNode): + return node.value + elif isinstance(node, mparser.NumberNode): + return node.value + elif isinstance(node, mparser.ArrayNode): + return [self._evaluate_statement(arg) for arg in node.args.arguments] + elif isinstance(node, mparser.IdNode): + return self.scope[node.value] + elif isinstance(node, mparser.ArithmeticNode): + l = self._evaluate_statement(node.left) + r = self._evaluate_statement(node.right) + if node.operation == 'add': + if (isinstance(l, str) and isinstance(r, str)) or \ + (isinstance(l, list) and isinstance(r, list)): + return l + r + elif node.operation == 'div': + if isinstance(l, str) and isinstance(r, str): + return os.path.join(l, r) + raise EnvironmentException('Unsupported node type') + +def parse_machine_files(filenames): + parser = MachineFileParser(filenames) + return parser.sections + def get_cmd_line_file(build_dir): return os.path.join(build_dir, 'meson-private', 'cmd_line.txt') |