mirror of
https://github.com/facebook/sapling.git
synced 2024-10-09 16:31:02 +03:00
f1c575a099
Summary:
This check is useful and detects real errors (ex. fbconduit). Unfortunately
`arc lint` will run it with both py2 and py3 so a lot of py2 builtins will
still be warned.
I didn't find a clean way to disable py3 check. So this diff tries to fix them.
For `xrange`, the change was done by a script:
```
import sys
import redbaron
headertypes = {'comment', 'endl', 'from_import', 'import', 'string',
'assignment', 'atomtrailers'}
xrangefix = '''try:
xrange(0)
except NameError:
xrange = range
'''
def isxrange(x):
try:
return x[0].value == 'xrange'
except Exception:
return False
def main(argv):
for i, path in enumerate(argv):
print('(%d/%d) scanning %s' % (i + 1, len(argv), path))
content = open(path).read()
try:
red = redbaron.RedBaron(content)
except Exception:
print(' warning: failed to parse')
continue
hasxrange = red.find('atomtrailersnode', value=isxrange)
hasxrangefix = 'xrange = range' in content
if hasxrangefix or not hasxrange:
print(' no need to change')
continue
# find a place to insert the compatibility statement
changed = False
for node in red:
if node.type in headertypes:
continue
# node.insert_before is an easier API, but it has bugs changing
# other "finally" and "except" positions. So do the insert
# manually.
# # node.insert_before(xrangefix)
line = node.absolute_bounding_box.top_left.line - 1
lines = content.splitlines(1)
content = ''.join(lines[:line]) + xrangefix + ''.join(lines[line:])
changed = True
break
if changed:
# "content" is faster than "red.dumps()"
open(path, 'w').write(content)
print(' updated')
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
```
For other py2 builtins that do not have a py3 equivalent, some `# noqa`
were added as a workaround for now.
Reviewed By: DurhamG
Differential Revision: D6934535
fbshipit-source-id: 546b62830af144bc8b46788d2e0fd00496838939
361 lines
11 KiB
Python
361 lines
11 KiB
Python
# archival.py - revision archival for mercurial
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#
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# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import gzip
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import os
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import struct
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import tarfile
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import time
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import zipfile
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import zlib
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from .i18n import _
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from . import (
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error,
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formatter,
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match as matchmod,
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util,
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vfs as vfsmod,
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)
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stringio = util.stringio
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# from unzip source code:
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_UNX_IFREG = 0x8000
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_UNX_IFLNK = 0xa000
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def tidyprefix(dest, kind, prefix):
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'''choose prefix to use for names in archive. make sure prefix is
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safe for consumers.'''
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if prefix:
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prefix = util.normpath(prefix)
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else:
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if not isinstance(dest, str):
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raise ValueError('dest must be string if no prefix')
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prefix = os.path.basename(dest)
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lower = prefix.lower()
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for sfx in exts.get(kind, []):
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if lower.endswith(sfx):
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prefix = prefix[:-len(sfx)]
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break
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lpfx = os.path.normpath(util.localpath(prefix))
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prefix = util.pconvert(lpfx)
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if not prefix.endswith('/'):
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prefix += '/'
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# Drop the leading '.' path component if present, so Windows can read the
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# zip files (issue4634)
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if prefix.startswith('./'):
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prefix = prefix[2:]
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if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix:
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raise error.Abort(_('archive prefix contains illegal components'))
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return prefix
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exts = {
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'tar': ['.tar'],
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'tbz2': ['.tbz2', '.tar.bz2'],
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'tgz': ['.tgz', '.tar.gz'],
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'zip': ['.zip'],
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}
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def guesskind(dest):
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for kind, extensions in exts.iteritems():
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if any(dest.endswith(ext) for ext in extensions):
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return kind
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return None
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def _rootctx(repo):
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# repo[0] may be hidden
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for rev in repo:
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return repo[rev]
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return repo['null']
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def buildmetadata(ctx):
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'''build content of .hg_archival.txt'''
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repo = ctx.repo()
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default = (
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r'repo: {root}\n'
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r'node: {ifcontains(rev, revset("wdir()"),'
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r'"{p1node}{dirty}", "{node}")}\n'
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r'branch: {branch|utf8}\n'
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# {tags} on ctx includes local tags and 'tip', with no current way to
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# limit that to global tags. Therefore, use {latesttag} as a substitute
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# when the distance is 0, since that will be the list of global tags on
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# ctx.
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r'{ifeq(latesttagdistance, 0, latesttag % "tag: {tag}\n",'
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r'"{latesttag % "latesttag: {tag}\n"}'
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r'latesttagdistance: {latesttagdistance}\n'
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r'changessincelatesttag: {changessincelatesttag}\n")}'
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)
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opts = {
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'template': repo.ui.config('experimental', 'archivemetatemplate',
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default)
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}
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out = util.stringio()
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fm = formatter.formatter(repo.ui, out, 'archive', opts)
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fm.startitem()
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fm.context(ctx=ctx)
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fm.data(root=_rootctx(repo).hex())
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if ctx.rev() is None:
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dirty = ''
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if ctx.dirty(missing=True):
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dirty = '+'
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fm.data(dirty=dirty)
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fm.end()
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return out.getvalue()
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class tarit(object):
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'''write archive to tar file or stream. can write uncompressed,
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or compress with gzip or bzip2.'''
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class GzipFileWithTime(gzip.GzipFile):
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def __init__(self, *args, **kw):
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timestamp = None
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if 'timestamp' in kw:
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timestamp = kw.pop(r'timestamp')
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if timestamp is None:
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self.timestamp = time.time()
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else:
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self.timestamp = timestamp
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gzip.GzipFile.__init__(self, *args, **kw)
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def _write_gzip_header(self):
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self.fileobj.write('\037\213') # magic header
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self.fileobj.write('\010') # compression method
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fname = self.name
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if fname and fname.endswith('.gz'):
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fname = fname[:-3]
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flags = 0
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if fname:
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flags = gzip.FNAME
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self.fileobj.write(chr(flags))
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gzip.write32u(self.fileobj, long(self.timestamp)) # noqa
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self.fileobj.write('\002')
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self.fileobj.write('\377')
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if fname:
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self.fileobj.write(fname + '\000')
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def __init__(self, dest, mtime, kind=''):
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self.mtime = mtime
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self.fileobj = None
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def taropen(mode, name='', fileobj=None):
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if kind == 'gz':
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mode = mode[0]
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if not fileobj:
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fileobj = open(name, mode + 'b')
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gzfileobj = self.GzipFileWithTime(name, mode + 'b',
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zlib.Z_BEST_COMPRESSION,
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fileobj, timestamp=mtime)
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self.fileobj = gzfileobj
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return tarfile.TarFile.taropen(name, mode, gzfileobj)
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else:
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return tarfile.open(name, mode + kind, fileobj)
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if isinstance(dest, str):
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self.z = taropen('w:', name=dest)
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else:
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self.z = taropen('w|', fileobj=dest)
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def addfile(self, name, mode, islink, data):
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i = tarfile.TarInfo(name)
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i.mtime = self.mtime
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i.size = len(data)
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if islink:
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i.type = tarfile.SYMTYPE
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i.mode = 0o777
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i.linkname = data
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data = None
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i.size = 0
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else:
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i.mode = mode
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data = stringio(data)
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self.z.addfile(i, data)
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def done(self):
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self.z.close()
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if self.fileobj:
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self.fileobj.close()
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class tellable(object):
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'''provide tell method for zipfile.ZipFile when writing to http
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response file object.'''
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def __init__(self, fp):
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self.fp = fp
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self.offset = 0
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def __getattr__(self, key):
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return getattr(self.fp, key)
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def write(self, s):
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self.fp.write(s)
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self.offset += len(s)
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def tell(self):
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return self.offset
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class zipit(object):
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'''write archive to zip file or stream. can write uncompressed,
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or compressed with deflate.'''
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def __init__(self, dest, mtime, compress=True):
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if not isinstance(dest, str):
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try:
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dest.tell()
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except (AttributeError, IOError):
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dest = tellable(dest)
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self.z = zipfile.ZipFile(dest, 'w',
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compress and zipfile.ZIP_DEFLATED or
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zipfile.ZIP_STORED)
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# Python's zipfile module emits deprecation warnings if we try
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# to store files with a date before 1980.
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epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0))
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if mtime < epoch:
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mtime = epoch
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self.mtime = mtime
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self.date_time = time.gmtime(mtime)[:6]
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def addfile(self, name, mode, islink, data):
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i = zipfile.ZipInfo(name, self.date_time)
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i.compress_type = self.z.compression
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# unzip will not honor unix file modes unless file creator is
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# set to unix (id 3).
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i.create_system = 3
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ftype = _UNX_IFREG
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if islink:
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mode = 0o777
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ftype = _UNX_IFLNK
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i.external_attr = (mode | ftype) << 16
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# add "extended-timestamp" extra block, because zip archives
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# without this will be extracted with unexpected timestamp,
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# if TZ is not configured as GMT
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i.extra += struct.pack('<hhBl',
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0x5455, # block type: "extended-timestamp"
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1 + 4, # size of this block
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1, # "modification time is present"
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int(self.mtime)) # last modification (UTC)
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self.z.writestr(i, data)
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def done(self):
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self.z.close()
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class fileit(object):
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'''write archive as files in directory.'''
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def __init__(self, name, mtime):
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self.basedir = name
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self.opener = vfsmod.vfs(self.basedir)
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self.mtime = mtime
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def addfile(self, name, mode, islink, data):
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if islink:
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self.opener.symlink(data, name)
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return
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f = self.opener(name, "w", atomictemp=True)
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f.write(data)
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f.close()
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destfile = os.path.join(self.basedir, name)
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os.chmod(destfile, mode)
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if self.mtime is not None:
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os.utime(destfile, (self.mtime, self.mtime))
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def done(self):
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pass
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archivers = {
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'files': fileit,
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'tar': tarit,
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'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'),
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'tgz': lambda name, mtime: tarit(name, mtime, 'gz'),
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'uzip': lambda name, mtime: zipit(name, mtime, False),
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'zip': zipit,
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}
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def archive(repo, dest, node, kind, decode=True, matchfn=None,
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prefix='', mtime=None, subrepos=False):
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'''create archive of repo as it was at node.
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dest can be name of directory, name of archive file, or file
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object to write archive to.
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kind is type of archive to create.
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decode tells whether to put files through decode filters from
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hgrc.
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matchfn is function to filter names of files to write to archive.
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prefix is name of path to put before every archive member.
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mtime is the modified time, in seconds, or None to use the changeset time.
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subrepos tells whether to include subrepos.
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'''
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if kind == 'files':
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if prefix:
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raise error.Abort(_('cannot give prefix when archiving to files'))
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else:
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prefix = tidyprefix(dest, kind, prefix)
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def write(name, mode, islink, getdata):
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data = getdata()
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if decode:
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data = repo.wwritedata(name, data)
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archiver.addfile(prefix + name, mode, islink, data)
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if kind not in archivers:
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raise error.Abort(_("unknown archive type '%s'") % kind)
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ctx = repo[node]
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archiver = archivers[kind](dest, mtime or ctx.date()[0])
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if repo.ui.configbool("ui", "archivemeta"):
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name = '.hg_archival.txt'
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if not matchfn or matchfn(name):
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write(name, 0o644, False, lambda: buildmetadata(ctx))
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if matchfn:
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files = [f for f in ctx.manifest().keys() if matchfn(f)]
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else:
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files = ctx.manifest().keys()
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total = len(files)
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if total:
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files.sort()
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repo.ui.progress(_('archiving'), 0, unit=_('files'), total=total)
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for i, f in enumerate(files):
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ff = ctx.flags(f)
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write(f, 'x' in ff and 0o755 or 0o644, 'l' in ff, ctx[f].data)
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repo.ui.progress(_('archiving'), i + 1, item=f,
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unit=_('files'), total=total)
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repo.ui.progress(_('archiving'), None)
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if subrepos:
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for subpath in sorted(ctx.substate):
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sub = ctx.workingsub(subpath)
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submatch = matchmod.subdirmatcher(subpath, matchfn)
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total += sub.archive(archiver, prefix, submatch, decode)
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if total == 0:
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raise error.Abort(_('no files match the archive pattern'))
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archiver.done()
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return total
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