def include(name):
from blade import build_manager
if name.startswith('//'):
dir = build_manager.instance.get_root_dir()
name = name[2:]
else:
dir = build_manager.instance.get_current_source_path()
exec_(os.path.join(dir, name), __current_globles, None)
def try_parse_file(self, filename):
"""load the configuration file and parse. """
try:
self.current_file_name = filename
if os.path.exists(filename):
console.info('Loading config file "%s"' % filename)
exec_(filename, _config_globals, None)
except SystemExit:
console.fatal('Parse error in config file %s' % filename)
finally:
self.current_file_name = ''
def _load_build_file(source_dir, processed_source_dirs, blade):
"""Load the BUILD and place the targets into database.
Invoked by _load_targets. Load and execute the BUILD
file, which is a Python script, in source_dir. Statements in BUILD
depends on global variable current_source_dir, and will register build
target/rules into global variables target_database. Report error
and exit if path/BUILD does NOT exist.
The parameters processed_source_dirs refers to a set defined in the
caller and used to avoid duplicated execution of BUILD files.
"""
source_dir = os.path.normpath(source_dir)
# TODO(yiwang): the character '#' is a magic value.
if source_dir in processed_source_dirs or source_dir == '#':
return
processed_source_dirs.add(source_dir)
if not os.path.exists(source_dir):
_report_not_exist(source_dir, source_dir, blade)
old_current_source_path = blade.get_current_source_path()
blade.set_current_source_path(source_dir)
build_file = os.path.join(source_dir, 'BUILD')
if os.path.exists(build_file) and not os.path.isdir(build_file):
try:
# The magic here is that a BUILD file is a Python script,
# which can be loaded and executed by execfile().
global __current_globles
__current_globles = build_rules.get_all()
exec_(build_file, __current_globles, None)
except SystemExit:
console.error_exit('%s: Fatal error' % build_file)
except: # pylint: disable=bare-except
console.error_exit('Parse error in %s\n%s' % (
build_file, traceback.format_exc()))
else:
_report_not_exist(source_dir, build_file, blade)
blade.set_current_source_path(old_current_source_path)
