##// END OF EJS Templates
largefiles: fix cat of non-largefiles from subdirectory...
largefiles: fix cat of non-largefiles from subdirectory We were calling back to the original commands.cat from inside the walk loop that handled and filtered out largefiles. That did however happen with file paths relative to repo root and the original cat would fail when it applied its own walk and match on top of that. Instead we now duplicate and modify the code from commands.cat and patch it to handle both normal and largefiles. A change in test output shows that this also makes the exit code with largefiles consistent with the normal one in the case where one of several specified files are missing. This also fixes the combination of --output and largefiles.

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lfcommands.py
547 lines | 20.0 KiB | text/x-python | PythonLexer
# Copyright 2009-2010 Gregory P. Ward
# Copyright 2009-2010 Intelerad Medical Systems Incorporated
# Copyright 2010-2011 Fog Creek Software
# Copyright 2010-2011 Unity Technologies
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''High-level command function for lfconvert, plus the cmdtable.'''
import os, errno
import shutil
from mercurial import util, match as match_, hg, node, context, error, \
cmdutil, scmutil, commands
from mercurial.i18n import _
from mercurial.lock import release
import lfutil
import basestore
# -- Commands ----------------------------------------------------------
def lfconvert(ui, src, dest, *pats, **opts):
'''convert a normal repository to a largefiles repository
Convert repository SOURCE to a new repository DEST, identical to
SOURCE except that certain files will be converted as largefiles:
specifically, any file that matches any PATTERN *or* whose size is
above the minimum size threshold is converted as a largefile. The
size used to determine whether or not to track a file as a
largefile is the size of the first version of the file. The
minimum size can be specified either with --size or in
configuration as ``largefiles.size``.
After running this command you will need to make sure that
largefiles is enabled anywhere you intend to push the new
repository.
Use --to-normal to convert largefiles back to normal files; after
this, the DEST repository can be used without largefiles at all.'''
if opts['to_normal']:
tolfile = False
else:
tolfile = True
size = lfutil.getminsize(ui, True, opts.get('size'), default=None)
if not hg.islocal(src):
raise util.Abort(_('%s is not a local Mercurial repo') % src)
if not hg.islocal(dest):
raise util.Abort(_('%s is not a local Mercurial repo') % dest)
rsrc = hg.repository(ui, src)
ui.status(_('initializing destination %s\n') % dest)
rdst = hg.repository(ui, dest, create=True)
success = False
dstwlock = dstlock = None
try:
# Lock destination to prevent modification while it is converted to.
# Don't need to lock src because we are just reading from its history
# which can't change.
dstwlock = rdst.wlock()
dstlock = rdst.lock()
# Get a list of all changesets in the source. The easy way to do this
# is to simply walk the changelog, using changelog.nodesbetween().
# Take a look at mercurial/revlog.py:639 for more details.
# Use a generator instead of a list to decrease memory usage
ctxs = (rsrc[ctx] for ctx in rsrc.changelog.nodesbetween(None,
rsrc.heads())[0])
revmap = {node.nullid: node.nullid}
if tolfile:
lfiles = set()
normalfiles = set()
if not pats:
pats = ui.configlist(lfutil.longname, 'patterns', default=[])
if pats:
matcher = match_.match(rsrc.root, '', list(pats))
else:
matcher = None
lfiletohash = {}
for ctx in ctxs:
ui.progress(_('converting revisions'), ctx.rev(),
unit=_('revision'), total=rsrc['tip'].rev())
_lfconvert_addchangeset(rsrc, rdst, ctx, revmap,
lfiles, normalfiles, matcher, size, lfiletohash)
ui.progress(_('converting revisions'), None)
if os.path.exists(rdst.wjoin(lfutil.shortname)):
shutil.rmtree(rdst.wjoin(lfutil.shortname))
for f in lfiletohash.keys():
if os.path.isfile(rdst.wjoin(f)):
os.unlink(rdst.wjoin(f))
try:
os.removedirs(os.path.dirname(rdst.wjoin(f)))
except OSError:
pass
# If there were any files converted to largefiles, add largefiles
# to the destination repository's requirements.
if lfiles:
rdst.requirements.add('largefiles')
rdst._writerequirements()
else:
for ctx in ctxs:
ui.progress(_('converting revisions'), ctx.rev(),
unit=_('revision'), total=rsrc['tip'].rev())
_addchangeset(ui, rsrc, rdst, ctx, revmap)
ui.progress(_('converting revisions'), None)
success = True
finally:
rdst.dirstate.clear()
release(dstlock, dstwlock)
if not success:
# we failed, remove the new directory
shutil.rmtree(rdst.root)
def _addchangeset(ui, rsrc, rdst, ctx, revmap):
# Convert src parents to dst parents
parents = _convertparents(ctx, revmap)
# Generate list of changed files
files = _getchangedfiles(ctx, parents)
def getfilectx(repo, memctx, f):
if lfutil.standin(f) in files:
# if the file isn't in the manifest then it was removed
# or renamed, raise IOError to indicate this
try:
fctx = ctx.filectx(lfutil.standin(f))
except error.LookupError:
raise IOError
renamed = fctx.renamed()
if renamed:
renamed = lfutil.splitstandin(renamed[0])
hash = fctx.data().strip()
path = lfutil.findfile(rsrc, hash)
# If one file is missing, likely all files from this rev are
if path is None:
cachelfiles(ui, rsrc, ctx.node())
path = lfutil.findfile(rsrc, hash)
if path is None:
raise util.Abort(
_("missing largefile \'%s\' from revision %s")
% (f, node.hex(ctx.node())))
data = ''
fd = None
try:
fd = open(path, 'rb')
data = fd.read()
finally:
if fd:
fd.close()
return context.memfilectx(f, data, 'l' in fctx.flags(),
'x' in fctx.flags(), renamed)
else:
return _getnormalcontext(repo.ui, ctx, f, revmap)
dstfiles = []
for file in files:
if lfutil.isstandin(file):
dstfiles.append(lfutil.splitstandin(file))
else:
dstfiles.append(file)
# Commit
_commitcontext(rdst, parents, ctx, dstfiles, getfilectx, revmap)
def _lfconvert_addchangeset(rsrc, rdst, ctx, revmap, lfiles, normalfiles,
matcher, size, lfiletohash):
# Convert src parents to dst parents
parents = _convertparents(ctx, revmap)
# Generate list of changed files
files = _getchangedfiles(ctx, parents)
dstfiles = []
for f in files:
if f not in lfiles and f not in normalfiles:
islfile = _islfile(f, ctx, matcher, size)
# If this file was renamed or copied then copy
# the largefile-ness of its predecessor
if f in ctx.manifest():
fctx = ctx.filectx(f)
renamed = fctx.renamed()
renamedlfile = renamed and renamed[0] in lfiles
islfile |= renamedlfile
if 'l' in fctx.flags():
if renamedlfile:
raise util.Abort(
_('renamed/copied largefile %s becomes symlink')
% f)
islfile = False
if islfile:
lfiles.add(f)
else:
normalfiles.add(f)
if f in lfiles:
dstfiles.append(lfutil.standin(f))
# largefile in manifest if it has not been removed/renamed
if f in ctx.manifest():
fctx = ctx.filectx(f)
if 'l' in fctx.flags():
renamed = fctx.renamed()
if renamed and renamed[0] in lfiles:
raise util.Abort(_('largefile %s becomes symlink') % f)
# largefile was modified, update standins
fullpath = rdst.wjoin(f)
util.makedirs(os.path.dirname(fullpath))
m = util.sha1('')
m.update(ctx[f].data())
hash = m.hexdigest()
if f not in lfiletohash or lfiletohash[f] != hash:
try:
fd = open(fullpath, 'wb')
fd.write(ctx[f].data())
finally:
if fd:
fd.close()
executable = 'x' in ctx[f].flags()
os.chmod(fullpath, lfutil.getmode(executable))
lfutil.writestandin(rdst, lfutil.standin(f), hash,
executable)
lfiletohash[f] = hash
else:
# normal file
dstfiles.append(f)
def getfilectx(repo, memctx, f):
if lfutil.isstandin(f):
# if the file isn't in the manifest then it was removed
# or renamed, raise IOError to indicate this
srcfname = lfutil.splitstandin(f)
try:
fctx = ctx.filectx(srcfname)
except error.LookupError:
raise IOError
renamed = fctx.renamed()
if renamed:
# standin is always a largefile because largefile-ness
# doesn't change after rename or copy
renamed = lfutil.standin(renamed[0])
return context.memfilectx(f, lfiletohash[srcfname] + '\n', 'l' in
fctx.flags(), 'x' in fctx.flags(), renamed)
else:
return _getnormalcontext(repo.ui, ctx, f, revmap)
# Commit
_commitcontext(rdst, parents, ctx, dstfiles, getfilectx, revmap)
def _commitcontext(rdst, parents, ctx, dstfiles, getfilectx, revmap):
mctx = context.memctx(rdst, parents, ctx.description(), dstfiles,
getfilectx, ctx.user(), ctx.date(), ctx.extra())
ret = rdst.commitctx(mctx)
rdst.setparents(ret)
revmap[ctx.node()] = rdst.changelog.tip()
# Generate list of changed files
def _getchangedfiles(ctx, parents):
files = set(ctx.files())
if node.nullid not in parents:
mc = ctx.manifest()
mp1 = ctx.parents()[0].manifest()
mp2 = ctx.parents()[1].manifest()
files |= (set(mp1) | set(mp2)) - set(mc)
for f in mc:
if mc[f] != mp1.get(f, None) or mc[f] != mp2.get(f, None):
files.add(f)
return files
# Convert src parents to dst parents
def _convertparents(ctx, revmap):
parents = []
for p in ctx.parents():
parents.append(revmap[p.node()])
while len(parents) < 2:
parents.append(node.nullid)
return parents
# Get memfilectx for a normal file
def _getnormalcontext(ui, ctx, f, revmap):
try:
fctx = ctx.filectx(f)
except error.LookupError:
raise IOError
renamed = fctx.renamed()
if renamed:
renamed = renamed[0]
data = fctx.data()
if f == '.hgtags':
data = _converttags (ui, revmap, data)
return context.memfilectx(f, data, 'l' in fctx.flags(),
'x' in fctx.flags(), renamed)
# Remap tag data using a revision map
def _converttags(ui, revmap, data):
newdata = []
for line in data.splitlines():
try:
id, name = line.split(' ', 1)
except ValueError:
ui.warn(_('skipping incorrectly formatted tag %s\n'
% line))
continue
try:
newid = node.bin(id)
except TypeError:
ui.warn(_('skipping incorrectly formatted id %s\n'
% id))
continue
try:
newdata.append('%s %s\n' % (node.hex(revmap[newid]),
name))
except KeyError:
ui.warn(_('no mapping for id %s\n') % id)
continue
return ''.join(newdata)
def _islfile(file, ctx, matcher, size):
'''Return true if file should be considered a largefile, i.e.
matcher matches it or it is larger than size.'''
# never store special .hg* files as largefiles
if file == '.hgtags' or file == '.hgignore' or file == '.hgsigs':
return False
if matcher and matcher(file):
return True
try:
return ctx.filectx(file).size() >= size * 1024 * 1024
except error.LookupError:
return False
def uploadlfiles(ui, rsrc, rdst, files):
'''upload largefiles to the central store'''
if not files:
return
store = basestore._openstore(rsrc, rdst, put=True)
at = 0
ui.debug("sending statlfile command for %d largefiles\n" % len(files))
retval = store.exists(files)
files = filter(lambda h: not retval[h], files)
ui.debug("%d largefiles need to be uploaded\n" % len(files))
for hash in files:
ui.progress(_('uploading largefiles'), at, unit='largefile',
total=len(files))
source = lfutil.findfile(rsrc, hash)
if not source:
raise util.Abort(_('largefile %s missing from store'
' (needs to be uploaded)') % hash)
# XXX check for errors here
store.put(source, hash)
at += 1
ui.progress(_('uploading largefiles'), None)
def verifylfiles(ui, repo, all=False, contents=False):
'''Verify that every largefile revision in the current changeset
exists in the central store. With --contents, also verify that
the contents of each local largefile file revision are correct (SHA-1 hash
matches the revision ID). With --all, check every changeset in
this repository.'''
if all:
# Pass a list to the function rather than an iterator because we know a
# list will work.
revs = range(len(repo))
else:
revs = ['.']
store = basestore._openstore(repo)
return store.verify(revs, contents=contents)
def debugdirstate(ui, repo):
'''Show basic information for the largefiles dirstate'''
lfdirstate = lfutil.openlfdirstate(ui, repo)
for file_, ent in sorted(lfdirstate._map.iteritems()):
mode = '%3o' % (ent[1] & 0777 & ~util.umask)
ui.write("%c %s %10d %s\n" % (ent[0], mode, ent[2], file_))
def cachelfiles(ui, repo, node, filelist=None):
'''cachelfiles ensures that all largefiles needed by the specified revision
are present in the repository's largefile cache.
returns a tuple (cached, missing). cached is the list of files downloaded
by this operation; missing is the list of files that were needed but could
not be found.'''
lfiles = lfutil.listlfiles(repo, node)
if filelist:
lfiles = set(lfiles) & set(filelist)
toget = []
for lfile in lfiles:
try:
expectedhash = repo[node][lfutil.standin(lfile)].data().strip()
except IOError, err:
if err.errno == errno.ENOENT:
continue # node must be None and standin wasn't found in wctx
raise
if not lfutil.findfile(repo, expectedhash):
toget.append((lfile, expectedhash))
if toget:
store = basestore._openstore(repo)
ret = store.get(toget)
return ret
return ([], [])
def downloadlfiles(ui, repo, rev=None):
matchfn = scmutil.match(repo[None],
[repo.wjoin(lfutil.shortname)], {})
def prepare(ctx, fns):
pass
totalsuccess = 0
totalmissing = 0
if rev != []: # walkchangerevs on empty list would return all revs
for ctx in cmdutil.walkchangerevs(repo, matchfn, {'rev' : rev},
prepare):
success, missing = cachelfiles(ui, repo, ctx.node())
totalsuccess += len(success)
totalmissing += len(missing)
ui.status(_("%d additional largefiles cached\n") % totalsuccess)
if totalmissing > 0:
ui.status(_("%d largefiles failed to download\n") % totalmissing)
return totalsuccess, totalmissing
def updatelfiles(ui, repo, filelist=None, printmessage=True):
wlock = repo.wlock()
try:
lfdirstate = lfutil.openlfdirstate(ui, repo)
lfiles = set(lfutil.listlfiles(repo)) | set(lfdirstate)
if filelist is not None:
lfiles = [f for f in lfiles if f in filelist]
printed = False
if printmessage and lfiles:
ui.status(_('getting changed largefiles\n'))
printed = True
cachelfiles(ui, repo, None, lfiles)
updated, removed = 0, 0
for f in lfiles:
i = _updatelfile(repo, lfdirstate, f)
if i:
if i > 0:
updated += i
else:
removed -= i
if printmessage and (removed or updated) and not printed:
ui.status(_('getting changed largefiles\n'))
printed = True
lfdirstate.write()
if printed and printmessage:
ui.status(_('%d largefiles updated, %d removed\n') % (updated,
removed))
finally:
wlock.release()
def _updatelfile(repo, lfdirstate, lfile):
'''updates a single largefile and copies the state of its standin from
the repository's dirstate to its state in the lfdirstate.
returns 1 if the file was modified, -1 if the file was removed, 0 if the
file was unchanged, and None if the needed largefile was missing from the
cache.'''
ret = 0
abslfile = repo.wjoin(lfile)
absstandin = repo.wjoin(lfutil.standin(lfile))
if os.path.exists(absstandin):
if os.path.exists(absstandin + '.orig') and os.path.exists(abslfile):
shutil.copyfile(abslfile, abslfile + '.orig')
expecthash = lfutil.readstandin(repo, lfile)
if (expecthash != '' and
(not os.path.exists(abslfile) or
expecthash != lfutil.hashfile(abslfile))):
if not lfutil.copyfromcache(repo, expecthash, lfile):
# use normallookup() to allocate entry in largefiles dirstate,
# because lack of it misleads lfilesrepo.status() into
# recognition that such cache missing files are REMOVED.
if lfile not in repo[None]: # not switched to normal file
util.unlinkpath(abslfile, ignoremissing=True)
lfdirstate.normallookup(lfile)
return None # don't try to set the mode
else:
# Synchronize largefile dirstate to the last modified time of
# the file
lfdirstate.normal(lfile)
ret = 1
mode = os.stat(absstandin).st_mode
if mode != os.stat(abslfile).st_mode:
os.chmod(abslfile, mode)
ret = 1
else:
# Remove lfiles for which the standin is deleted, unless the
# lfile is added to the repository again. This happens when a
# largefile is converted back to a normal file: the standin
# disappears, but a new (normal) file appears as the lfile.
if os.path.exists(abslfile) and lfile not in repo[None]:
util.unlinkpath(abslfile)
ret = -1
state = repo.dirstate[lfutil.standin(lfile)]
if state == 'n':
# When rebasing, we need to synchronize the standin and the largefile,
# because otherwise the largefile will get reverted. But for commit's
# sake, we have to mark the file as unclean.
if getattr(repo, "_isrebasing", False):
lfdirstate.normallookup(lfile)
else:
lfdirstate.normal(lfile)
elif state == 'r':
lfdirstate.remove(lfile)
elif state == 'a':
lfdirstate.add(lfile)
elif state == '?':
lfdirstate.drop(lfile)
return ret
# -- hg commands declarations ------------------------------------------------
cmdtable = {
'lfconvert': (lfconvert,
[('s', 'size', '',
_('minimum size (MB) for files to be converted '
'as largefiles'),
'SIZE'),
('', 'to-normal', False,
_('convert from a largefiles repo to a normal repo')),
],
_('hg lfconvert SOURCE DEST [FILE ...]')),
}
commands.inferrepo += " lfconvert"