def DoStatResetTriggers(self):
"""Reset stat caches if a glob evaluates differently from earlier.
More precisely, if a path of a glob comes in or out of existence or has a
new stamp, then reset stat caches."""
trigger_map = self.stat_reset_triggers
old_paths = [ path
for glob_expr in trigger_map
for path in trigger_map[glob_expr] ]
for glob_expr in trigger_map:
for path in glob.glob(glob_expr):
try:
old_paths.remove(path)
except ValueError:
pass
new_stamp = basics.Stamp(path)
if path in trigger_map[glob_expr]:
if new_stamp != trigger_map[glob_expr][path]:
Debug(basics.DEBUG_WARNING,
"Path '%s' changed. Clearing caches.",
path)
trigger_map[glob_expr][path] = new_stamp
self.ClearStatCaches()
return
else:
Debug(basics.DEBUG_WARNING,
"Path '%s' came into existence. Clearing caches.",
path)
trigger_map[glob_expr][path] = basics.Stamp(path)
self.ClearStatCaches()
return
if old_paths:
path = old_paths[0]
Debug(basics.DEBUG_WARNING,
"Path '%s' no longer exists. Clearing caches.",
path)
self.ClearStatCaches()
def _ParseCommandLineOptions():
"""Parse arguments and options for the include server command.
Returns:
(include_server_port, pid_file), where include_server_port
is a string and pid_file is a string or None
Modifies:
option variables in module basics
"""
try:
opts, args = getopt.getopt(sys.argv[1:], "d:estvwx", [
"port=", "pid_file=", "debug_pattern=", "email", "no-email",
"email_bound=", "exact_analysis", "path_observation_re=",
"stat_reset_triggers=", "simple_algorithm", "statistics", "time",
"unsafe_absolute_includes", "no_force_dirs", "verify",
"write_include_closure"
])
except getopt.GetoptError:
# Print help information and exit.
Usage()
sys.exit(1)
pid_file = None
include_server_port = None
for opt, arg in opts:
try:
if opt in ("-d", "--debug_pattern"):
basics.opt_debug_pattern = int(arg)
if opt in ("--port", ):
include_server_port = arg
if opt in ("--pid_file", ):
pid_file = arg
if opt in ("-e", "--email"):
basics.opt_send_email = True
if opt in ("--no-email", ):
basics.opt_send_email = False
if opt in ("--email_bound", ):
basics.opt_email_bound = int(arg)
if opt in ("--path_observation_re", ):
basics.opt_path_observation_re = re.compile(arg)
if opt in ("--stat_reset_triggers", ):
basics.opt_stat_reset_triggers = (dict([
(glob_expr,
dict([(path, basics.Stamp(path))
for path in glob.glob(glob_expr)]))
for glob_expr in arg.split(':')
]))
if opt in ("--simple_algorithm", ):
basics.opt_simple_algorithm = True
sys.exit("Not implemented")
if opt in ("--unsafe_absolute_includes", ):
basics.opt_unsafe_absolute_includes = True
if opt in ("--no_force_dirs", ):
basics.opt_no_force_dirs = True
if opt in ("-s", "--statistics"):
basics.opt_statistics = True
if opt in ("-t", "--time"):
basics.opt_print_times = True
if opt in ("-v", "--verify"):
basics.opt_verify = True
if opt in ("-w", "--write_include_closure"):
basics.opt_write_include_closure = True
if opt in ("-x", "--exact_analysis"):
basics.opt_exact_include_analysis = True
except ValueError:
Usage()
sys.exit(1)
# We must have a port!
if not include_server_port:
print("INCLUDE_SERVER_PORT not provided. Aborting.", file=sys.stderr)
print("-------------------------------------------",
"\n",
file=sys.stderr)
Usage()
sys.exit(1)
return (include_server_port, pid_file)