# Copyright 2019 The Meson development team # 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. from .common import CMakeException, CMakeBuildFile, CMakeConfiguration from typing import Any, List, Tuple import os import json import re STRIP_KEYS = ['cmake', 'reply', 'backtrace', 'backtraceGraph', 'version'] class CMakeFileAPI: def __init__(self, build_dir: str): self.build_dir = build_dir self.api_base_dir = os.path.join(self.build_dir, '.cmake', 'api', 'v1') self.request_dir = os.path.join(self.api_base_dir, 'query', 'client-meson') self.reply_dir = os.path.join(self.api_base_dir, 'reply') self.cmake_sources = [] self.cmake_configurations = [] self.kind_resolver_map = { 'codemodel': self._parse_codemodel, 'cmakeFiles': self._parse_cmakeFiles, } def get_cmake_sources(self) -> List[CMakeBuildFile]: return self.cmake_sources def get_cmake_configurations(self) -> List[CMakeConfiguration]: return self.cmake_configurations def setup_request(self) -> None: os.makedirs(self.request_dir, exist_ok=True) query = { 'requests': [ {'kind': 'codemodel', 'version': {'major': 2, 'minor': 0}}, {'kind': 'cmakeFiles', 'version': {'major': 1, 'minor': 0}}, ] } with open(os.path.join(self.request_dir, 'query.json'), 'w') as fp: json.dump(query, fp, indent=2) def load_reply(self) -> None: if not os.path.isdir(self.reply_dir): raise CMakeException('No response from the CMake file API') files = os.listdir(self.reply_dir) root = None reg_index = re.compile(r'^index-.*\.json$') for i in files: if reg_index.match(i): root = i break if not root: raise CMakeException('Failed to find the CMake file API index') index = self._reply_file_content(root) # Load the root index index = self._strip_data(index) # Avoid loading duplicate files index = self._resolve_references(index) # Load everything index = self._strip_data(index) # Strip unused data (again for loaded files) # Debug output debug_json = os.path.normpath(os.path.join(self.build_dir, '..', 'fileAPI.json')) with open(debug_json, 'w') as fp: json.dump(index, fp, indent=2) # parse the JSON for i in index['objects']: assert(isinstance(i, dict)) assert('kind' in i) assert(i['kind'] in self.kind_resolver_map) self.kind_resolver_map[i['kind']](i) def _parse_codemodel(self, data: dict) -> None: assert('configurations' in data) assert('paths' in data) source_dir = data['paths']['source'] build_dir = data['paths']['build'] # The file API output differs quite a bit from the server # output. It is more flat than the server output and makes # heavy use of references. Here these references are # resolved and the resulting data structure is identical # to the CMake serve output. def helper_parse_dir(dir_entry: dict) -> Tuple[str, str]: src_dir = dir_entry.get('source', '.') bld_dir = dir_entry.get('build', '.') src_dir = src_dir if os.path.isabs(src_dir) else os.path.join(source_dir, src_dir) bld_dir = bld_dir if os.path.isabs(bld_dir) else os.path.join(source_dir, bld_dir) src_dir = os.path.normpath(src_dir) bld_dir = os.path.normpath(bld_dir) return src_dir, bld_dir def parse_sources(comp_group: dict, tgt: dict) -> Tuple[List[str], List[str], List[int]]: gen = [] src = [] idx = [] src_list_raw = tgt.get('sources', []) for i in comp_group.get('sourceIndexes', []): if i >= len(src_list_raw) or 'path' not in src_list_raw[i]: continue if src_list_raw[i].get('isGenerated', False): gen += [src_list_raw[i]['path']] else: src += [src_list_raw[i]['path']] idx += [i] return src, gen, idx def parse_target(tgt: dict) -> dict: src_dir, bld_dir = helper_parse_dir(cnf.get('paths', {})) # Parse install paths (if present) install_paths = [] if 'install' in tgt: prefix = tgt['install']['prefix']['path'] install_paths = [os.path.join(prefix, x['path']) for x in tgt['install']['destinations']] install_paths = list(set(install_paths)) # On the first look, it looks really nice that the CMake devs have # decided to use arrays for the linker flags. However, this feeling # soon turns into despair when you realize that there only one entry # per type in most cases, and we still have to do manual string splitting. link_flags = [] link_libs = [] for i in tgt.get('link', {}).get('commandFragments', []): if i['role'] == 'flags': link_flags += [i['fragment']] elif i['role'] == 'libraries': link_libs += [i['fragment']] elif i['role'] == 'libraryPath': link_flags += ['-L{}'.format(i['fragment'])] elif i['role'] == 'frameworkPath': link_flags += ['-F{}'.format(i['fragment'])] for i in tgt.get('archive', {}).get('commandFragments', []): if i['role'] == 'flags': link_flags += [i['fragment']] # TODO The `dependencies` entry is new in the file API. # maybe we can make use of that in addition to the # implicit dependency detection tgt_data = { 'artifacts': [x.get('path', '') for x in tgt.get('artifacts', [])], 'sourceDirectory': src_dir, 'buildDirectory': bld_dir, 'name': tgt.get('name', ''), 'fullName': tgt.get('nameOnDisk', ''), 'hasInstallRule': 'install' in tgt, 'installPaths': install_paths, 'linkerLanguage': tgt.get('link', {}).get('language', 'CXX'), 'linkLibraries': ' '.join(link_libs), # See previous comment block why we join the array 'linkFlags': ' '.join(link_flags), # See previous comment block why we join the array 'type': tgt.get('type', 'EXECUTABLE'), 'fileGroups': [], } processed_src_idx = [] for cg in tgt.get('compileGroups', []): # Again, why an array, when there is usually only one element # and arguments are separated with spaces... flags = [] for i in cg.get('compileCommandFragments', []): flags += [i['fragment']] cg_data = { 'defines': [x.get('define', '') for x in cg.get('defines', [])], 'compileFlags': ' '.join(flags), 'language': cg.get('language', 'C'), 'isGenerated': None, # Set later, flag is stored per source file 'sources': [], # TODO handle isSystem 'includePath': [x.get('path', '') for x in cg.get('includes', [])], } normal_src, generated_src, src_idx = parse_sources(cg, tgt) if normal_src: cg_data = dict(cg_data) cg_data['isGenerated'] = False cg_data['sources'] = normal_src tgt_data['fileGroups'] += [cg_data] if generated_src: cg_data = dict(cg_data) cg_data['isGenerated'] = True cg_data['sources'] = generated_src tgt_data['fileGroups'] += [cg_data] processed_src_idx += src_idx # Object libraries have no compile groups, only source groups. # So we add all the source files to a dummy source group that were # not found in the previous loop normal_src = [] generated_src = [] for idx, src in enumerate(tgt.get('sources', [])): if idx in processed_src_idx: continue if src.get('isGenerated', False): generated_src += [src['path']] else: normal_src += [src['path']] if normal_src: tgt_data['fileGroups'] += [{ 'isGenerated': False, 'sources': normal_src, }] if generated_src: tgt_data['fileGroups'] += [{ 'isGenerated': True, 'sources': generated_src, }] return tgt_data def parse_project(pro: dict) -> dict: # Only look at the first directory specified in directoryIndexes # TODO Figure out what the other indexes are there for p_src_dir = source_dir p_bld_dir = build_dir try: p_src_dir, p_bld_dir = helper_parse_dir(cnf['directories'][pro['directoryIndexes'][0]]) except (IndexError, KeyError): pass pro_data = { 'name': pro.get('name', ''), 'sourceDirectory': p_src_dir, 'buildDirectory': p_bld_dir, 'targets': [], } for ref in pro.get('targetIndexes', []): tgt = {} try: tgt = cnf['targets'][ref] except (IndexError, KeyError): pass pro_data['targets'] += [parse_target(tgt)] return pro_data for cnf in data.get('configurations', []): cnf_data = { 'name': cnf.get('name', ''), 'projects': [], } for pro in cnf.get('projects', []): cnf_data['projects'] += [parse_project(pro)] self.cmake_configurations += [CMakeConfiguration(cnf_data)] def _parse_cmakeFiles(self, data: dict) -> None: assert('inputs' in data) assert('paths' in data) src_dir = data['paths']['source'] for i in data['inputs']: path = i['path'] path = path if os.path.isabs(path) else os.path.join(src_dir, path) self.cmake_sources += [CMakeBuildFile(path, i.get('isCMake', False), i.get('isGenerated', False))] def _strip_data(self, data: Any) -> Any: if isinstance(data, list): for idx, i in enumerate(data): data[idx] = self._strip_data(i) elif isinstance(data, dict): new = {} for key, val in data.items(): if key not in STRIP_KEYS: new[key] = self._strip_data(val) data = new return data def _resolve_references(self, data: Any) -> Any: if isinstance(data, list): for idx, i in enumerate(data): data[idx] = self._resolve_references(i) elif isinstance(data, dict): # Check for the "magic" reference entry and insert # it into the root data dict if 'jsonFile' in data: data.update(self._reply_file_content(data['jsonFile'])) for key, val in data.items(): data[key] = self._resolve_references(val) return data def _reply_file_content(self, filename: str) -> dict: real_path = os.path.join(self.reply_dir, filename) if not os.path.exists(real_path): raise CMakeException('File "{}" does not exist'.format(real_path)) with open(real_path, 'r') as fp: return json.load(fp)