221 lines
7.8 KiB
Python
221 lines
7.8 KiB
Python
import os
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import re
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import subprocess
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import sys
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from .constants import GENERATORS
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from .errors import FatalError
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def executable_exists(args):
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try:
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subprocess.check_output(args)
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return True
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except Exception:
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return False
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def realpath(path):
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"""
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Return the cannonical path with normalized case.
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It is useful on Windows to comparision paths in case-insensitive manner.
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On Unix and Mac OS X it works as `os.path.realpath()` only.
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"""
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return os.path.normcase(os.path.realpath(path))
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def _idf_version_from_cmake():
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version_path = os.path.join(os.environ["IDF_PATH"], "tools/cmake/version.cmake")
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regex = re.compile(r"^\s*set\s*\(\s*IDF_VERSION_([A-Z]{5})\s+(\d+)")
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ver = {}
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try:
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with open(version_path) as f:
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for line in f:
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m = regex.match(line)
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if m:
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ver[m.group(1)] = m.group(2)
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return "v%s.%s.%s" % (ver["MAJOR"], ver["MINOR"], ver["PATCH"])
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except (KeyError, OSError):
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sys.stderr.write("WARNING: Cannot find ESP-IDF version in version.cmake\n")
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return None
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def idf_version():
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"""Print version of ESP-IDF"""
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# Try to get version from git:
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try:
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version = subprocess.check_output([
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"git",
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"--git-dir=%s" % os.path.join(os.environ["IDF_PATH"], '.git'),
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"--work-tree=%s" % os.environ["IDF_PATH"], "describe", "--tags", "--dirty"
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]).decode('utf-8', 'ignore').strip()
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except (subprocess.CalledProcessError, UnicodeError):
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# if failed, then try to parse cmake.version file
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sys.stderr.write("WARNING: Git version unavailable, reading from source\n")
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version = _idf_version_from_cmake()
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return version
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def run_tool(tool_name, args, cwd):
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def quote_arg(arg):
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" Quote 'arg' if necessary "
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if " " in arg and not (arg.startswith('"') or arg.startswith("'")):
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return "'" + arg + "'"
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return arg
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display_args = " ".join(quote_arg(arg) for arg in args)
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print("Running %s in directory %s" % (tool_name, quote_arg(cwd)))
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print('Executing "%s"...' % str(display_args))
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try:
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# Note: we explicitly pass in os.environ here, as we may have set IDF_PATH there during startup
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subprocess.check_call(args, env=os.environ, cwd=cwd)
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except subprocess.CalledProcessError as e:
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raise FatalError("%s failed with exit code %d" % (tool_name, e.returncode))
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def _strip_quotes(value, regexp=re.compile(r"^\"(.*)\"$|^'(.*)'$|^(.*)$")):
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"""
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Strip quotes like CMake does during parsing cache entries
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"""
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return [x for x in regexp.match(value).groups() if x is not None][0].rstrip()
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def _parse_cmakecache(path):
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"""
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Parse the CMakeCache file at 'path'.
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Returns a dict of name:value.
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CMakeCache entries also each have a "type", but this is currently ignored.
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"""
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result = {}
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with open(path) as f:
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for line in f:
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# cmake cache lines look like: CMAKE_CXX_FLAGS_DEBUG:STRING=-g
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# groups are name, type, value
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m = re.match(r"^([^#/:=]+):([^:=]+)=(.*)\n$", line)
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if m:
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result[m.group(1)] = m.group(3)
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return result
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def _new_cmakecache_entries(cache_path, new_cache_entries):
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if not os.path.exists(cache_path):
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return True
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if new_cache_entries:
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current_cache = _parse_cmakecache(cache_path)
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for entry in new_cache_entries:
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key, value = entry.split("=", 1)
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current_value = current_cache.get(key, None)
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if current_value is None or _strip_quotes(value) != current_value:
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return True
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return False
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def _detect_cmake_generator(prog_name):
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"""
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Find the default cmake generator, if none was specified. Raises an exception if no valid generator is found.
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"""
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for (generator_name, generator) in GENERATORS.items():
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if executable_exists(generator["version"]):
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return generator_name
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raise FatalError("To use %s, either the 'ninja' or 'GNU make' build tool must be available in the PATH" % prog_name)
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def ensure_build_directory(args, prog_name, always_run_cmake=False):
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"""Check the build directory exists and that cmake has been run there.
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If this isn't the case, create the build directory (if necessary) and
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do an initial cmake run to configure it.
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This function will also check args.generator parameter. If the parameter is incompatible with
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the build directory, an error is raised. If the parameter is None, this function will set it to
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an auto-detected default generator or to the value already configured in the build directory.
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"""
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project_dir = args.project_dir
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# Verify the project directory
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if not os.path.isdir(project_dir):
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if not os.path.exists(project_dir):
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raise FatalError("Project directory %s does not exist" % project_dir)
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else:
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raise FatalError("%s must be a project directory" % project_dir)
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if not os.path.exists(os.path.join(project_dir, "CMakeLists.txt")):
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raise FatalError("CMakeLists.txt not found in project directory %s" % project_dir)
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# Verify/create the build directory
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build_dir = args.build_dir
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if not os.path.isdir(build_dir):
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os.makedirs(build_dir)
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cache_path = os.path.join(build_dir, "CMakeCache.txt")
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args.define_cache_entry.append("CCACHE_ENABLE=%d" % args.ccache)
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if always_run_cmake or _new_cmakecache_entries(cache_path, args.define_cache_entry):
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if args.generator is None:
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args.generator = _detect_cmake_generator(prog_name)
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try:
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cmake_args = [
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"cmake",
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"-G",
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args.generator,
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"-DPYTHON_DEPS_CHECKED=1",
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"-DESP_PLATFORM=1",
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]
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if not args.no_warnings:
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cmake_args += ["--warn-uninitialized"]
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if args.define_cache_entry:
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cmake_args += ["-D" + d for d in args.define_cache_entry]
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cmake_args += [project_dir]
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run_tool("cmake", cmake_args, cwd=args.build_dir)
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except Exception:
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# don't allow partially valid CMakeCache.txt files,
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# to keep the "should I run cmake?" logic simple
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if os.path.exists(cache_path):
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os.remove(cache_path)
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raise
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# Learn some things from the CMakeCache.txt file in the build directory
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cache = _parse_cmakecache(cache_path)
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try:
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generator = cache["CMAKE_GENERATOR"]
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except KeyError:
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generator = _detect_cmake_generator(prog_name)
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if args.generator is None:
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args.generator = (generator) # reuse the previously configured generator, if none was given
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if generator != args.generator:
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raise FatalError("Build is configured for generator '%s' not '%s'. Run '%s fullclean' to start again." %
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(generator, args.generator, prog_name))
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try:
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home_dir = cache["CMAKE_HOME_DIRECTORY"]
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if realpath(home_dir) != realpath(project_dir):
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raise FatalError(
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"Build directory '%s' configured for project '%s' not '%s'. Run '%s fullclean' to start again." %
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(build_dir, realpath(home_dir), realpath(project_dir), prog_name))
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except KeyError:
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pass # if cmake failed part way, CMAKE_HOME_DIRECTORY may not be set yet
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def merge_action_lists(*action_lists):
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merged_actions = {
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"global_options": [],
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"actions": {},
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"global_action_callbacks": [],
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}
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for action_list in action_lists:
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merged_actions["global_options"].extend(action_list.get("global_options", []))
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merged_actions["actions"].update(action_list.get("actions", {}))
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merged_actions["global_action_callbacks"].extend(action_list.get("global_action_callbacks", []))
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return merged_actions
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