def _write_target_ninja_file(self, target, ninja_file, rules, rule_hash):
"""Generate per-target ninja file"""
target_dir = target._target_file_path('')
if not os.path.exists(target_dir):
os.makedirs(target_dir)
with open(ninja_file, 'w') as f:
f.write('%s%s\n\n' % (_NINJA_FILE_RULE_HASH_START, rule_hash))
f.writelines(rules)
def _find_or_generate_target_ninja_file(self, target):
target_ninja = target._target_file_path('%s.ninja' % target.name)
old_rule_hash = self._read_rule_hash(target_ninja)
rule_hash = target.rule_hash()
if rule_hash == old_rule_hash:
return target_ninja
rules = target.get_rules()
if rules:
self._write_target_ninja_file(target, target_ninja, rules,
rule_hash)
return target_ninja
return None
def _find_or_generate_target_ninja_file(self, target):
# The `.build.` infix is used to avoid the target ninja file with the
# same name as the main build.ninja file (when target.name == 'build')
target_ninja = target._target_file_path('%s.build.ninja' % target.name)
old_rule_hash = self._read_rule_hash(target_ninja)
rule_hash = target.rule_hash()
if rule_hash == old_rule_hash:
console.debug('Using cached %s' % target_ninja)
# If the command is "clean", we still need to generate rules to obtain the clean list
if self.__command == 'clean':
target.get_rules()
return target_ninja
rules = target.get_rules()
if rules:
console.debug('Generating %s' % target_ninja)
self._write_target_ninja_file(target, target_ninja, rules, rule_hash)
return target_ninja
return None