495 lines
19 KiB
Python
Executable File
495 lines
19 KiB
Python
Executable File
#! /usr/bin/env python
|
|
# coding=utf-8
|
|
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
|
|
__version__ = "1.9"
|
|
|
|
import logging
|
|
from os import extsep, path, readlink, curdir
|
|
from subprocess import CalledProcessError, Popen, PIPE
|
|
import sys
|
|
import tarfile
|
|
from zipfile import ZipFile, ZipInfo, ZIP_DEFLATED
|
|
|
|
|
|
class GitArchiver(object):
|
|
"""
|
|
GitArchiver
|
|
|
|
Scan a git repository and export all tracked files, and submodules.
|
|
Checks for .gitattributes files in each directory and uses 'export-ignore'
|
|
pattern entries for ignore files in the archive.
|
|
|
|
>>> archiver = GitArchiver(main_repo_abspath='my/repo/path')
|
|
>>> archiver.create('output.zip')
|
|
"""
|
|
LOG = logging.getLogger('GitArchiver')
|
|
|
|
def __init__(self, prefix='', exclude=True, force_sub=False, extra=None, main_repo_abspath=None):
|
|
"""
|
|
@param prefix: Prefix used to prepend all paths in the resulting archive.
|
|
Extra file paths are only prefixed if they are not relative.
|
|
E.g. if prefix is 'foo' and extra is ['bar', '/baz'] the resulting archive will look like this:
|
|
/
|
|
baz
|
|
foo/
|
|
bar
|
|
@type prefix: string
|
|
|
|
@param exclude: Determines whether archiver should follow rules specified in .gitattributes files.
|
|
@type exclude: bool
|
|
|
|
@param force_sub: Determines whether submodules are initialized and updated before archiving.
|
|
@type force_sub: bool
|
|
|
|
@param extra: List of extra paths to include in the resulting archive.
|
|
@type extra: list
|
|
|
|
@param main_repo_abspath: Absolute path to the main repository (or one of subdirectories).
|
|
If given path is path to a subdirectory (but not a submodule directory!) it will be replaced
|
|
with abspath to top-level directory of the repository.
|
|
If None, current cwd is used.
|
|
@type main_repo_abspath: string
|
|
"""
|
|
if extra is None:
|
|
extra = []
|
|
|
|
if main_repo_abspath is None:
|
|
main_repo_abspath = path.abspath('')
|
|
elif not path.isabs(main_repo_abspath):
|
|
raise ValueError("You MUST pass absolute path to the main git repository.")
|
|
|
|
try:
|
|
self.run_shell("[ -d .git ] || git rev-parse --git-dir > /dev/null 2>&1", main_repo_abspath)
|
|
except Exception as e:
|
|
raise ValueError("Not a git repository (or any of the parent directories).")
|
|
|
|
main_repo_abspath = path.abspath(self.read_git_shell('git rev-parse --show-toplevel', main_repo_abspath).rstrip())
|
|
|
|
self.prefix = prefix
|
|
self.exclude = exclude
|
|
self.extra = extra
|
|
self.force_sub = force_sub
|
|
self.main_repo_abspath = main_repo_abspath
|
|
|
|
def create(self, output_path, dry_run=False, output_format=None):
|
|
"""
|
|
Create the archive at output_file_path.
|
|
|
|
Type of the archive is determined either by extension of output_file_path or by output_format.
|
|
Supported formats are: gz, zip, bz2, xz, tar, tgz, txz
|
|
|
|
@param output_path: Output file path.
|
|
@type output_path: string
|
|
|
|
@param dry_run: Determines whether create should do nothing but print what it would archive.
|
|
@type dry_run: bool
|
|
|
|
@param output_format: Determines format of the output archive. If None, format is determined from extension
|
|
of output_file_path.
|
|
@type output_format: string
|
|
"""
|
|
if output_format is None:
|
|
file_name, file_ext = path.splitext(output_path)
|
|
output_format = file_ext[len(extsep):].lower()
|
|
self.LOG.debug("Output format is not explicitly set, determined format is {}.".format(output_format))
|
|
|
|
if not dry_run:
|
|
if output_format == 'zip':
|
|
archive = ZipFile(path.abspath(output_path), 'w')
|
|
|
|
def add_file(file_path, arcname):
|
|
if not path.islink(file_path):
|
|
archive.write(file_path, arcname, ZIP_DEFLATED)
|
|
else:
|
|
i = ZipInfo(arcname)
|
|
i.create_system = 3
|
|
i.external_attr = 0xA1ED0000
|
|
archive.writestr(i, readlink(file_path))
|
|
elif output_format in ['tar', 'bz2', 'gz', 'xz', 'tgz', 'txz']:
|
|
if output_format == 'tar':
|
|
t_mode = 'w'
|
|
elif output_format == 'tgz':
|
|
t_mode = 'w:gz'
|
|
elif output_format == 'txz':
|
|
t_mode = 'w:xz'
|
|
else:
|
|
t_mode = 'w:{}'.format(output_format)
|
|
|
|
archive = tarfile.open(path.abspath(output_path), t_mode)
|
|
add_file = lambda file_path, arcname: archive.add(file_path, arcname)
|
|
else:
|
|
raise RuntimeError("Unknown format: {}".format(output_format))
|
|
|
|
def archiver(file_path, arcname):
|
|
self.LOG.debug("Compressing {} => {}...".format(file_path, arcname))
|
|
add_file(file_path, arcname)
|
|
else:
|
|
archive = None
|
|
archiver = lambda file_path, arcname: self.LOG.info("{} => {}".format(file_path, arcname))
|
|
|
|
self.archive_all_files(archiver)
|
|
|
|
if archive is not None:
|
|
archive.close()
|
|
|
|
def get_exclude_patterns(self, repo_abspath, repo_file_paths):
|
|
"""
|
|
Returns exclude patterns for a given repo. It looks for .gitattributes files in repo_file_paths.
|
|
|
|
Resulting dictionary will contain exclude patterns per path (relative to the repo_abspath).
|
|
E.g. {('.', 'Catalyst', 'Editions', 'Base'), ['Foo*', '*Bar']}
|
|
|
|
@type repo_abspath: string
|
|
@param repo_abspath: Absolute path to the git repository.
|
|
|
|
@type repo_file_paths: list
|
|
@param repo_file_paths: List of paths relative to the repo_abspath that are under git control.
|
|
|
|
@rtype: dict
|
|
@return: Dictionary representing exclude patterns.
|
|
Keys are tuples of strings. Values are lists of strings.
|
|
Returns None if self.exclude is not set.
|
|
"""
|
|
if not self.exclude:
|
|
return None
|
|
|
|
def read_attributes(attributes_abspath):
|
|
patterns = []
|
|
if path.isfile(attributes_abspath):
|
|
attributes = open(attributes_abspath, 'r').readlines()
|
|
patterns = []
|
|
for line in attributes:
|
|
tokens = line.strip().split()
|
|
if "export-ignore" in tokens[1:]:
|
|
patterns.append(tokens[0])
|
|
return patterns
|
|
|
|
exclude_patterns = {(): []}
|
|
|
|
# There may be no gitattributes.
|
|
try:
|
|
global_attributes_abspath = self.read_shell("git config --get core.attributesfile", repo_abspath).rstrip()
|
|
exclude_patterns[()] = read_attributes(global_attributes_abspath)
|
|
except:
|
|
# And it's valid to not have them.
|
|
pass
|
|
|
|
for attributes_abspath in [path.join(repo_abspath, f) for f in repo_file_paths if f.endswith(".gitattributes")]:
|
|
# Each .gitattributes affects only files within its directory.
|
|
key = tuple(self.get_path_components(repo_abspath, path.dirname(attributes_abspath)))
|
|
exclude_patterns[key] = read_attributes(attributes_abspath)
|
|
|
|
local_attributes_abspath = path.join(repo_abspath, ".git", "info", "attributes")
|
|
key = tuple(self.get_path_components(repo_abspath, repo_abspath))
|
|
|
|
if key in exclude_patterns:
|
|
exclude_patterns[key].extend(read_attributes(local_attributes_abspath))
|
|
else:
|
|
exclude_patterns[key] = read_attributes(local_attributes_abspath)
|
|
|
|
return exclude_patterns
|
|
|
|
def is_file_excluded(self, repo_abspath, repo_file_path, exclude_patterns):
|
|
"""
|
|
Checks whether file at a given path is excluded.
|
|
|
|
@type repo_abspath: string
|
|
@param repo_abspath: Absolute path to the git repository.
|
|
|
|
@type repo_file_path: string
|
|
@param repo_file_path: Path to a file within repo_abspath.
|
|
|
|
@type exclude_patterns: dict
|
|
@param exclude_patterns: Exclude patterns with format specified for get_exclude_patterns.
|
|
|
|
@rtype: bool
|
|
@return: True if file should be excluded. Otherwise False.
|
|
"""
|
|
if exclude_patterns is None or not len(exclude_patterns):
|
|
return False
|
|
|
|
from fnmatch import fnmatch
|
|
|
|
file_name = path.basename(repo_file_path)
|
|
components = self.get_path_components(repo_abspath, path.join(repo_abspath, path.dirname(repo_file_path)))
|
|
|
|
is_excluded = False
|
|
# We should check all patterns specified in intermediate directories to the given file.
|
|
# At the end we should also check for the global patterns (key '()' or empty tuple).
|
|
while not is_excluded:
|
|
key = tuple(components)
|
|
if key in exclude_patterns:
|
|
patterns = exclude_patterns[key]
|
|
for p in patterns:
|
|
if fnmatch(file_name, p) or fnmatch(repo_file_path, p):
|
|
self.LOG.debug("Exclude pattern matched {}: {}".format(p, repo_file_path))
|
|
is_excluded = True
|
|
|
|
if not len(components):
|
|
break
|
|
|
|
components.pop()
|
|
|
|
return is_excluded
|
|
|
|
def archive_all_files(self, archiver):
|
|
"""
|
|
Archive all files using archiver.
|
|
|
|
@param archiver: Function that accepts 2 arguments: abspath to file on the system and relative path within archive.
|
|
"""
|
|
for file_path in self.extra:
|
|
archiver(path.abspath(file_path), path.join(self.prefix, file_path))
|
|
|
|
for file_path in self.walk_git_files():
|
|
archiver(path.join(self.main_repo_abspath, file_path), path.join(self.prefix, file_path))
|
|
|
|
def walk_git_files(self, repo_path=''):
|
|
"""
|
|
An iterator method that yields a file path relative to main_repo_abspath
|
|
for each file that should be included in the archive.
|
|
Skips those that match the exclusion patterns found in
|
|
any discovered .gitattributes files along the way.
|
|
|
|
Recurs into submodules as well.
|
|
|
|
@type repo_path: string
|
|
@param repo_path: Path to the git submodule repository relative to main_repo_abspath.
|
|
|
|
@rtype: iterator
|
|
@return: Iterator to traverse files under git control relative to main_repo_abspath.
|
|
"""
|
|
repo_abspath = path.join(self.main_repo_abspath, repo_path)
|
|
repo_file_paths = self.read_git_shell("git ls-files --cached --full-name --no-empty-directory", repo_abspath).splitlines()
|
|
exclude_patterns = self.get_exclude_patterns(repo_abspath, repo_file_paths)
|
|
|
|
for repo_file_path in repo_file_paths:
|
|
# Git puts path in quotes if file path has unicode characters.
|
|
repo_file_path = repo_file_path.strip('"') # file path relative to current repo
|
|
file_name = path.basename(repo_file_path)
|
|
main_repo_file_path = path.join(repo_path, repo_file_path) # file path relative to the main repo
|
|
|
|
# Only list symlinks and files that don't start with git.
|
|
if file_name.startswith(".git") or (not path.islink(main_repo_file_path) and path.isdir(main_repo_file_path)):
|
|
continue
|
|
|
|
if self.is_file_excluded(repo_abspath, repo_file_path, exclude_patterns):
|
|
continue
|
|
|
|
yield main_repo_file_path
|
|
|
|
if self.force_sub:
|
|
self.run_shell("git submodule init", repo_abspath)
|
|
self.run_shell("git submodule update", repo_abspath)
|
|
|
|
for submodule_path in self.read_shell("git submodule --quiet foreach 'pwd -P'", repo_abspath).splitlines():
|
|
# Shell command returns absolute paths to submodules.
|
|
submodule_path = path.relpath(submodule_path, self.main_repo_abspath)
|
|
for file_path in self.walk_git_files(submodule_path):
|
|
yield file_path
|
|
|
|
@staticmethod
|
|
def get_path_components(repo_abspath, abspath):
|
|
"""
|
|
Split given abspath into components relative to repo_abspath.
|
|
These components are primarily used as unique keys of files and folders within a repository.
|
|
|
|
E.g. if repo_abspath is '/Documents/Hobby/ParaView/' and abspath is
|
|
'/Documents/Hobby/ParaView/Catalyst/Editions/Base/', function will return:
|
|
['.', 'Catalyst', 'Editions', 'Base']
|
|
|
|
First element is always '.' (concrete symbol depends on OS).
|
|
|
|
@param repo_abspath: Absolute path to the git repository. Normalized via os.path.normpath.
|
|
@type repo_abspath: string
|
|
|
|
@param abspath: Absolute path to a file within repo_abspath. Normalized via os.path.normpath.
|
|
@type abspath: string
|
|
|
|
@return: List of path components.
|
|
@rtype: list
|
|
"""
|
|
repo_abspath = path.normpath(repo_abspath)
|
|
abspath = path.normpath(abspath)
|
|
|
|
if not path.isabs(repo_abspath):
|
|
raise ValueError("repo_abspath MUST be absolute path.")
|
|
|
|
if not path.isabs(abspath):
|
|
raise ValueError("abspath MUST be absoulte path.")
|
|
|
|
if not path.commonprefix([repo_abspath, abspath]):
|
|
raise ValueError("abspath (\"{}\") MUST have common prefix with repo_abspath (\"{}\")".format(abspath, repo_abspath))
|
|
|
|
components = []
|
|
|
|
while not abspath == repo_abspath:
|
|
abspath, tail = path.split(abspath)
|
|
|
|
if tail:
|
|
components.insert(0, tail)
|
|
|
|
components.insert(0, curdir)
|
|
return components
|
|
|
|
@staticmethod
|
|
def run_shell(cmd, cwd=None):
|
|
"""
|
|
Runs shell command.
|
|
|
|
@type cmd: string
|
|
@param cmd: Command to be executed.
|
|
|
|
@type cwd: string
|
|
@param cwd: Working directory.
|
|
|
|
@rtype: int
|
|
@return: Return code of the command.
|
|
|
|
@raise CalledProcessError: Raises exception if return code of the command is non-zero.
|
|
"""
|
|
p = Popen(cmd, shell=True, cwd=cwd)
|
|
p.wait()
|
|
|
|
if p.returncode:
|
|
raise CalledProcessError(returncode=p.returncode, cmd=cmd)
|
|
|
|
return p.returncode
|
|
|
|
@staticmethod
|
|
def read_shell(cmd, cwd=None, encoding='utf-8'):
|
|
"""
|
|
Runs shell command and reads output.
|
|
|
|
@type cmd: string
|
|
@param cmd: Command to be executed.
|
|
|
|
@type cwd: string
|
|
@param cwd: Working directory.
|
|
|
|
@type encoding: string
|
|
@param encoding: Encoding used to decode bytes returned by Popen into string.
|
|
|
|
@rtype: string
|
|
@return: Output of the command.
|
|
|
|
@raise CalledProcessError: Raises exception if return code of the command is non-zero.
|
|
"""
|
|
p = Popen(cmd, shell=True, stdout=PIPE, cwd=cwd)
|
|
output, _ = p.communicate()
|
|
output = output.decode(encoding)
|
|
|
|
if p.returncode:
|
|
if sys.version_info > (2,6):
|
|
raise CalledProcessError(returncode=p.returncode, cmd=cmd, output=output)
|
|
else:
|
|
raise CalledProcessError(returncode=p.returncode, cmd=cmd)
|
|
|
|
return output
|
|
|
|
@staticmethod
|
|
def read_git_shell(cmd, cwd=None):
|
|
"""
|
|
Runs git shell command, reads output and decodes it into unicode string
|
|
|
|
@type cmd: string
|
|
@param cmd: Command to be executed.
|
|
|
|
@type cwd: string
|
|
@param cwd: Working directory.
|
|
|
|
@rtype: string
|
|
@return: Output of the command.
|
|
|
|
@raise CalledProcessError: Raises exception if return code of the command is non-zero.
|
|
"""
|
|
p = Popen(cmd, shell=True, stdout=PIPE, cwd=cwd)
|
|
output, _ = p.communicate()
|
|
output = output.decode('unicode_escape').encode('raw_unicode_escape').decode('utf-8')
|
|
|
|
if p.returncode:
|
|
if sys.version_info > (2,6):
|
|
raise CalledProcessError(returncode=p.returncode, cmd=cmd, output=output)
|
|
else:
|
|
raise CalledProcessError(returncode=p.returncode, cmd=cmd)
|
|
|
|
return output
|
|
|
|
|
|
if __name__ == '__main__':
|
|
from optparse import OptionParser
|
|
|
|
parser = OptionParser(usage="usage: %prog [-v] [--prefix PREFIX] [--no-exclude] [--force-submodules] [--extra EXTRA1 [EXTRA2]] [--dry-run] OUTPUT_FILE",
|
|
version="%prog {}".format(__version__))
|
|
|
|
parser.add_option('--prefix',
|
|
type='string',
|
|
dest='prefix',
|
|
default=None,
|
|
help="prepend PREFIX to each filename in the archive. OUTPUT_FILE name is used by default to avoid tarbomb. You can set it to '' in order to explicitly request tarbomb")
|
|
|
|
parser.add_option('-v', '--verbose',
|
|
action='store_true',
|
|
dest='verbose',
|
|
help='enable verbose mode')
|
|
|
|
parser.add_option('--no-exclude',
|
|
action='store_false',
|
|
dest='exclude',
|
|
default=True,
|
|
help="don't read .gitattributes files for patterns containing export-ignore attrib")
|
|
|
|
parser.add_option('--force-submodules',
|
|
action='store_true',
|
|
dest='force_sub',
|
|
help="force a git submodule init && git submodule update at each level before iterating submodules")
|
|
|
|
parser.add_option('--extra',
|
|
action='append',
|
|
dest='extra',
|
|
default=[],
|
|
help="any additional files to include in the archive")
|
|
|
|
parser.add_option('--dry-run',
|
|
action='store_true',
|
|
dest='dry_run',
|
|
help="don't actually archive anything, just show what would be done")
|
|
|
|
options, args = parser.parse_args()
|
|
|
|
if len(args) != 1:
|
|
parser.error("You must specify exactly one output file")
|
|
|
|
output_file_path = args[0]
|
|
|
|
if path.isdir(output_file_path):
|
|
parser.error("You cannot use directory as output")
|
|
|
|
# avoid tarbomb
|
|
if options.prefix is not None:
|
|
options.prefix = path.join(options.prefix, '')
|
|
else:
|
|
import re
|
|
|
|
output_name = path.basename(output_file_path)
|
|
output_name = re.sub('(\.zip|\.tar|\.tgz|\.txz|\.gz|\.bz2|\.xz|\.tar\.gz|\.tar\.bz2|\.tar\.xz)$', '', output_name) or "Archive"
|
|
options.prefix = path.join(output_name, '')
|
|
|
|
try:
|
|
handler = logging.StreamHandler(sys.stdout)
|
|
handler.setFormatter(logging.Formatter('%(message)s'))
|
|
GitArchiver.LOG.addHandler(handler)
|
|
GitArchiver.LOG.setLevel(logging.DEBUG if options.verbose else logging.INFO)
|
|
archiver = GitArchiver(options.prefix,
|
|
options.exclude,
|
|
options.force_sub,
|
|
options.extra)
|
|
archiver.create(output_file_path, options.dry_run)
|
|
except Exception as e:
|
|
parser.exit(2, "{}\n".format(e))
|
|
|
|
sys.exit(0)
|