2015-09-18 01:14:31 +08:00
|
|
|
#!/usr/bin/env python
|
|
|
|
"""
|
|
|
|
The LLVM Compiler Infrastructure
|
|
|
|
|
|
|
|
This file is distributed under the University of Illinois Open Source
|
|
|
|
License. See LICENSE.TXT for details.
|
|
|
|
|
|
|
|
Sync lldb and related source from a local machine to a remote machine.
|
|
|
|
|
|
|
|
This facilitates working on the lldb sourcecode on multiple machines
|
|
|
|
and multiple OS types, verifying changes across all.
|
|
|
|
"""
|
|
|
|
|
|
|
|
import argparse
|
|
|
|
import cStringIO
|
|
|
|
import importlib
|
|
|
|
import json
|
|
|
|
import os.path
|
|
|
|
import re
|
|
|
|
import sys
|
|
|
|
|
|
|
|
# Add the local lib directory to the python path.
|
|
|
|
LOCAL_LIB_PATH = os.path.join(
|
|
|
|
os.path.dirname(os.path.realpath(__file__)),
|
|
|
|
"lib")
|
|
|
|
sys.path.append(LOCAL_LIB_PATH)
|
|
|
|
|
|
|
|
import transfer.transfer_spec
|
|
|
|
|
|
|
|
|
2015-09-18 03:23:50 +08:00
|
|
|
DOTRC_BASE_FILENAME = ".syncsourcerc"
|
2015-09-18 01:14:31 +08:00
|
|
|
|
|
|
|
|
|
|
|
class Configuration(object):
|
|
|
|
"""Provides chaining configuration lookup."""
|
2016-09-07 04:57:50 +08:00
|
|
|
|
2015-09-18 01:14:31 +08:00
|
|
|
def __init__(self, rcdata_configs):
|
|
|
|
self.__rcdata_configs = rcdata_configs
|
|
|
|
|
|
|
|
def get_value(self, key):
|
|
|
|
"""
|
|
|
|
Return the first value in the parent chain that has the key.
|
|
|
|
|
|
|
|
The traversal starts from the most derived configuration (i.e.
|
|
|
|
child) and works all the way up the parent chain.
|
|
|
|
|
|
|
|
@return the value of the first key in the parent chain that
|
|
|
|
contains a value for the given key.
|
|
|
|
"""
|
|
|
|
for config in self.__rcdata_configs:
|
|
|
|
if key in config:
|
|
|
|
return config[key]
|
|
|
|
return None
|
|
|
|
|
|
|
|
def __getitem__(self, key):
|
|
|
|
value = self.get_value(key)
|
|
|
|
if value:
|
|
|
|
return value
|
|
|
|
else:
|
|
|
|
raise KeyError(key)
|
|
|
|
|
|
|
|
|
|
|
|
def parse_args():
|
|
|
|
"""@return options parsed from the command line."""
|
|
|
|
parser = argparse.ArgumentParser()
|
|
|
|
parser.add_argument(
|
|
|
|
"--config-name", "-c", action="store", default="default",
|
|
|
|
help="specify configuration name to use")
|
|
|
|
parser.add_argument(
|
|
|
|
"--default-excludes", action="store", default="*.git,*.svn,*.pyc",
|
|
|
|
help=("comma-separated list of default file patterns to exclude "
|
|
|
|
"from each source directory and to protect from deletion "
|
|
|
|
"on each destination directory; if starting with forward "
|
|
|
|
"slash, it only matches at the top of the base directory"))
|
|
|
|
parser.add_argument(
|
|
|
|
"--dry-run", "-n", action="store_true",
|
|
|
|
help="do a dry run of the transfer operation, don't really transfer")
|
|
|
|
parser.add_argument(
|
|
|
|
"--rc-file", "-r", action="store",
|
|
|
|
help="specify the sync-source rc file to use for configurations")
|
|
|
|
parser.add_argument(
|
|
|
|
"--verbose", "-v", action="store_true", help="turn on verbose output")
|
|
|
|
return parser.parse_args()
|
|
|
|
|
|
|
|
|
|
|
|
def read_rcfile(filename):
|
|
|
|
"""Returns the json-parsed contents of the input file."""
|
|
|
|
|
|
|
|
# First parse file contents, removing all comments but
|
|
|
|
# preserving the line count.
|
|
|
|
regex = re.compile(r"#.*$")
|
|
|
|
|
|
|
|
comment_stripped_file = cStringIO.StringIO()
|
|
|
|
with open(filename, "r") as json_file:
|
|
|
|
for line in json_file:
|
|
|
|
comment_stripped_file.write(regex.sub("", line))
|
|
|
|
return json.load(cStringIO.StringIO(comment_stripped_file.getvalue()))
|
|
|
|
|
|
|
|
|
|
|
|
def find_appropriate_rcfile(options):
|
|
|
|
# Use an options-specified rcfile if specified.
|
|
|
|
if options.rc_file and len(options.rc_file) > 0:
|
|
|
|
if not os.path.isfile(options.rc_file):
|
|
|
|
# If it doesn't exist, error out here.
|
|
|
|
raise "rcfile '{}' specified but doesn't exist".format(
|
|
|
|
options.rc_file)
|
|
|
|
return options.rc_file
|
|
|
|
|
|
|
|
# Check if current directory .sync-sourcerc exists. If so, use it.
|
|
|
|
local_rc_filename = os.path.abspath(DOTRC_BASE_FILENAME)
|
|
|
|
if os.path.isfile(local_rc_filename):
|
|
|
|
return local_rc_filename
|
|
|
|
|
|
|
|
# Check if home directory .sync-sourcerc exists. If so, use it.
|
|
|
|
homedir_rc_filename = os.path.abspath(
|
|
|
|
os.path.join(os.path.expanduser("~"), DOTRC_BASE_FILENAME))
|
|
|
|
if os.path.isfile(homedir_rc_filename):
|
|
|
|
return homedir_rc_filename
|
|
|
|
|
|
|
|
# Nothing matched. We don't have an rc filename candidate.
|
|
|
|
return None
|
|
|
|
|
|
|
|
|
|
|
|
def get_configuration(options, rcdata, config_name):
|
|
|
|
rcdata_configs = []
|
|
|
|
next_config_name = config_name
|
|
|
|
while next_config_name:
|
|
|
|
# Find the next rcdata configuration for the given name.
|
|
|
|
rcdata_config = next(
|
|
|
|
config for config in rcdata["configurations"]
|
|
|
|
if config["name"] == next_config_name)
|
|
|
|
|
|
|
|
# See if we found it.
|
|
|
|
if rcdata_config:
|
|
|
|
# This is our next configuration to use in the chain.
|
|
|
|
rcdata_configs.append(rcdata_config)
|
|
|
|
|
|
|
|
# If we have a parent, check that next.
|
|
|
|
if "parent" in rcdata_config:
|
|
|
|
next_config_name = rcdata_config["parent"]
|
|
|
|
else:
|
|
|
|
next_config_name = None
|
|
|
|
else:
|
|
|
|
raise "failed to find specified parent config '{}'".format(
|
|
|
|
next_config_name)
|
|
|
|
return Configuration(rcdata_configs)
|
|
|
|
|
|
|
|
|
|
|
|
def create_transfer_agent(options, configuration):
|
|
|
|
transfer_class_spec = configuration.get_value("transfer_class")
|
|
|
|
if options.verbose:
|
|
|
|
print "specified transfer class: '{}'".format(transfer_class_spec)
|
|
|
|
|
|
|
|
# Load the module (possibly package-qualified).
|
|
|
|
components = transfer_class_spec.split(".")
|
|
|
|
module = importlib.import_module(".".join(components[:-1]))
|
|
|
|
|
|
|
|
# Create the class name we need to load.
|
|
|
|
clazz = getattr(module, components[-1])
|
|
|
|
return clazz(options, configuration)
|
|
|
|
|
|
|
|
|
|
|
|
def sync_configured_sources(options, configuration, default_excludes):
|
|
|
|
# Look up the transfer method.
|
|
|
|
transfer_agent = create_transfer_agent(options, configuration)
|
|
|
|
|
|
|
|
# For each configured dir_names source, do the following transfer:
|
|
|
|
# 1. Start with base_dir + {source-dir-name}_dir
|
|
|
|
# 2. Copy all files recursively, but exclude
|
|
|
|
# all dirs specified by source_excludes:
|
|
|
|
# skip all base_dir + {source-dir-name}_dir +
|
|
|
|
# {source-dir-name}_dir excludes.
|
|
|
|
source_dirs = configuration.get_value("source")
|
|
|
|
source_excludes = configuration.get_value("source_excludes")
|
|
|
|
dest_dirs = configuration.get_value("dest")
|
|
|
|
|
|
|
|
source_base_dir = source_dirs["base_dir"]
|
|
|
|
dest_base_dir = dest_dirs["base_dir"]
|
|
|
|
dir_ids = configuration.get_value("dir_names")
|
|
|
|
transfer_specs = []
|
|
|
|
|
|
|
|
for dir_id in dir_ids:
|
|
|
|
dir_key = "{}_dir".format(dir_id)
|
|
|
|
|
|
|
|
# Build the source dir (absolute) that we're copying from.
|
|
|
|
# Defaults the base-relative source dir to the source id (e.g. lldb)
|
|
|
|
rel_source_dir = source_dirs.get(dir_key, dir_id)
|
|
|
|
transfer_source_dir = os.path.expanduser(
|
|
|
|
os.path.join(source_base_dir, rel_source_dir))
|
|
|
|
|
|
|
|
# Exclude dirs do two things:
|
|
|
|
# 1) stop items from being copied on the source side, and
|
|
|
|
# 2) protect things from being deleted on the dest side.
|
|
|
|
#
|
|
|
|
# In both cases, they are specified relative to the base
|
|
|
|
# directory on either the source or dest side.
|
|
|
|
#
|
|
|
|
# Specifying a leading '/' in the directory will limit it to
|
|
|
|
# be rooted in the base directory. i.e. "/.git" will only
|
|
|
|
# match {base-dir}/.git, not {base-dir}/subdir/.git, but
|
|
|
|
# ".svn" will match {base-dir}/.svn and
|
|
|
|
# {base-dir}/subdir/.svn.
|
|
|
|
#
|
|
|
|
# If excludes are specified for this dir_id, then pass along
|
|
|
|
# the excludes. These are relative to the dir_id directory
|
|
|
|
# source, and get passed along that way as well.
|
2015-10-09 01:43:02 +08:00
|
|
|
transfer_source_excludes = []
|
|
|
|
|
|
|
|
# Add the source excludes for this dir.
|
|
|
|
skip_defaults = False
|
2015-09-18 01:14:31 +08:00
|
|
|
if source_excludes and dir_key in source_excludes:
|
|
|
|
transfer_source_excludes.extend(source_excludes[dir_key])
|
2015-10-09 01:43:02 +08:00
|
|
|
if "<no-defaults>" in source_excludes[dir_key]:
|
|
|
|
skip_defaults = True
|
|
|
|
transfer_source_excludes.remove("<no-defaults>")
|
|
|
|
|
|
|
|
if not skip_defaults and default_excludes is not None:
|
|
|
|
transfer_source_excludes.extend(list(default_excludes))
|
2015-09-18 01:14:31 +08:00
|
|
|
|
|
|
|
# Build the destination-base-relative dest dir into which
|
|
|
|
# we'll be syncing. Relative directory defaults to the
|
|
|
|
# dir id
|
|
|
|
rel_dest_dir = dest_dirs.get(dir_key, dir_id)
|
|
|
|
transfer_dest_dir = os.path.join(dest_base_dir, rel_dest_dir)
|
|
|
|
|
|
|
|
# Add the exploded paths to the list that we'll ask the
|
|
|
|
# transfer agent to transfer for us.
|
|
|
|
transfer_specs.append(
|
|
|
|
transfer.transfer_spec.TransferSpec(
|
|
|
|
transfer_source_dir,
|
|
|
|
transfer_source_excludes,
|
|
|
|
transfer_dest_dir))
|
|
|
|
|
|
|
|
# Do the transfer.
|
|
|
|
if len(transfer_specs) > 0:
|
|
|
|
transfer_agent.transfer(transfer_specs, options.dry_run)
|
|
|
|
else:
|
2015-11-04 05:01:45 +08:00
|
|
|
raise Exception("nothing to transfer, bad configuration?")
|
2015-09-18 01:14:31 +08:00
|
|
|
|
|
|
|
|
|
|
|
def main():
|
|
|
|
"""Drives the main program."""
|
|
|
|
options = parse_args()
|
|
|
|
|
|
|
|
if options.default_excludes and len(options.default_excludes) > 0:
|
|
|
|
default_excludes = options.default_excludes.split(",")
|
|
|
|
else:
|
|
|
|
default_excludes = []
|
|
|
|
|
|
|
|
# Locate the rc filename to load, then load it.
|
|
|
|
rc_filename = find_appropriate_rcfile(options)
|
|
|
|
if rc_filename:
|
|
|
|
if options.verbose:
|
|
|
|
print "reading rc data from file '{}'".format(rc_filename)
|
|
|
|
rcdata = read_rcfile(rc_filename)
|
|
|
|
else:
|
|
|
|
sys.stderr.write("no rcfile specified, cannot guess configuration")
|
|
|
|
exit(1)
|
|
|
|
|
|
|
|
# Find configuration.
|
|
|
|
configuration = get_configuration(options, rcdata, options.config_name)
|
|
|
|
if not configuration:
|
|
|
|
sys.stderr.write("failed to find configuration for {}".format(
|
|
|
|
options.config_data))
|
|
|
|
exit(2)
|
|
|
|
|
|
|
|
# Kick off the transfer.
|
|
|
|
sync_configured_sources(options, configuration, default_excludes)
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
main()
|