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|
# filedata.py - generate displayable file data
#
# Copyright 2011 Steve Borho <steve@borho.org>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
import os, posixpath
import cStringIO
from mercurial import commands, error, match, patch, subrepo, util
from mercurial import copies
from mercurial.utils import (
dateutil,
)
from mercurial.node import nullrev
from tortoisehg.util import hglib, patchctx
from tortoisehg.util.i18n import _
from tortoisehg.hgqt import fileencoding
forcedisplaymsg = _('Display the file anyway')
class _BadContent(Exception):
"""Failed to display file because it is binary or size limit exceeded"""
def _exceedsMaxLineLength(data, maxlength=100000):
if len(data) < maxlength:
return False
for line in data.splitlines():
if len(line) > maxlength:
return True
return False
def _checkdifferror(data, maxdiff):
p = _('Diff not displayed: ')
size = len(data)
if size > maxdiff:
return p + _('File is larger than the specified max size.\n'
'maxdiff = %s KB') % (maxdiff // 1024)
elif '\0' in data:
return p + _('File is binary')
elif _exceedsMaxLineLength(data):
# it's incredibly slow to render long line by QScintilla
return p + _('File may be binary (maximum line length exceeded)')
def _trimdiffheader(diff):
# trim first three lines, for example:
# diff -r f6bfc41af6d7 -r c1b18806486d tortoisehg/hgqt/mq.py
# --- a/tortoisehg/hgqt/mq.py
# +++ b/tortoisehg/hgqt/mq.py
out = diff.split('\n', 3)
if len(out) == 4:
return out[3]
else:
# there was an error or rename without diffs
return diff
class _AbstractFileData(object):
def __init__(self, ctx, ctx2, wfile, status=None, rpath=None):
self._ctx = ctx
self._pctx = ctx2
self._wfile = wfile
self._status = status
self._rpath = rpath or ''
self.contents = None
self.ucontents = None
self.error = None
self.olddata = None
self.diff = None
self.flabel = u''
self.elabel = u''
self.changes = None
self._textencoding = fileencoding.contentencoding(ctx._repo.ui)
def createRebased(self, pctx):
# new status is not known
return self.__class__(self._ctx, pctx, self._wfile, rpath=self._rpath)
def load(self, changeselect=False, force=False):
# Note: changeselect may be set to True even if the underlying data
# isn't chunk-selectable
raise NotImplementedError
def __eq__(self, other):
# unlike changectx, this also compares hash in case it was stripped and
# recreated. FileData may live longer than changectx in Mercurial.
return (isinstance(other, self.__class__)
and self._ctx == other._ctx
and self._ctx.node() == other._ctx.node()
and self._pctx == other._pctx
and (self._pctx is None
or self._pctx.node() == other._pctx.node())
and self._wfile == other._wfile
and self._rpath == other._rpath)
def __ne__(self, other):
return not self == other
def __hash__(self):
return hash((self._ctx, self._ctx.node(),
self._pctx, self._pctx is None or self._pctx.node(),
self._wfile, self._rpath))
def __repr__(self):
return '<%s %s@%s>' % (self.__class__.__name__,
posixpath.join(self._rpath, self._wfile),
self._ctx)
def isLoaded(self):
loadables = [self.contents, self.ucontents, self.error, self.diff]
return any(e is not None for e in loadables)
def isNull(self):
return self._ctx.rev() == nullrev and not self._wfile
def isValid(self):
return self.error is None and not self.isNull()
def rev(self):
return self._ctx.rev()
def baseRev(self):
return self._pctx.rev()
def parentRevs(self):
# may contain nullrev, which allows "nullrev in parentRevs()"
return [p.rev() for p in self._ctx.parents()]
def rawContext(self):
return self._ctx
def rawBaseContext(self):
return self._pctx
# absoluteFilePath : "C:\\Documents\\repo\\foo\\subrepo\\bar\\baz"
# absoluteRepoRootPath: "C:\\Documents\\repo\\foo\\subrepo"
# canonicalFilePath: "bar/baz"
# filePath : "foo/subrepo/bar/baz"
# repoRootPath : "foo/subrepo"
def absoluteFilePath(self):
"""Absolute file-system path of this file"""
repo = self._ctx._repo
return hglib.tounicode(os.path.normpath(repo.wjoin(self._wfile)))
def absoluteRepoRootPath(self):
"""Absolute file-system path to the root of the container repository"""
# repo.root should be normalized
repo = self._ctx._repo
return hglib.tounicode(repo.root)
def canonicalFilePath(self):
"""Path relative to the repository root which contains this file"""
return hglib.tounicode(self._wfile)
def filePath(self):
"""Path relative to the top repository root in the current context"""
return hglib.tounicode(posixpath.join(self._rpath, self._wfile))
def repoRootPath(self):
"""Root path of the container repository relative to the top repository
in the current context; '' for top repository"""
return hglib.tounicode(self._rpath)
def fileStatus(self):
return self._status
def isDir(self):
return not self._wfile
def mergeStatus(self):
pass
def subrepoType(self):
pass
def textEncoding(self):
return self._textencoding
def setTextEncoding(self, name):
self._textencoding = fileencoding.canonname(name)
def detectTextEncoding(self):
ui = self._ctx._repo.ui
# use file content for better guess; diff may be mixed encoding or
# have immature multi-byte sequence
data = self.contents or self.diff or ''
fallbackenc = self._textencoding
self._textencoding = fileencoding.guessencoding(ui, data, fallbackenc)
def _textToUnicode(self, s):
return s.decode(self._textencoding, 'replace')
def diffText(self):
return self._textToUnicode(self.diff or '')
def fileText(self):
return self._textToUnicode(self.contents or '')
class FileData(_AbstractFileData):
def __init__(self, ctx, pctx, path, status=None, rpath=None, mstatus=None):
super(FileData, self).__init__(ctx, pctx, path, status, rpath)
self._mstatus = mstatus
def load(self, changeselect=False, force=False):
if self.rev() == nullrev:
return
ctx = self._ctx
ctx2 = self._pctx
wfile = self._wfile
status = self._status
errorprefix = _('File or diffs not displayed: ')
try:
self._readStatus(ctx, ctx2, wfile, status, changeselect, force)
except _BadContent, e:
self.error = errorprefix + e.args[0] + '\n\n' + forcedisplaymsg
except (EnvironmentError, error.LookupError, error.Abort), e:
self.error = errorprefix + hglib.tounicode(str(e))
def _checkMaxDiff(self, ctx, wfile, maxdiff, force):
self.error = None
fctx = ctx.filectx(wfile)
size = hglib.getestimatedsize(fctx)
if not force and size > maxdiff:
raise _BadContent(_('File is larger than the specified max size.\n'
'maxdiff = %s KB') % (maxdiff // 1024))
data = fctx.data()
if not force:
if '\0' in data or ctx.isStandin(wfile):
raise _BadContent(_('File is binary'))
elif _exceedsMaxLineLength(data):
# it's incredibly slow to render long line by QScintilla
raise _BadContent(_('File may be binary (maximum line length '
'exceeded)'))
return fctx, data
def _checkRenamed(self, repo, ctx, pctx, wfile):
m = match.exact(repo, '', [wfile])
copy = copies.pathcopies(pctx, ctx, match=m)
oldname = copy.get(wfile)
if not oldname:
self.flabel += _(' <i>(was added)</i>')
return
fr = hglib.tounicode(oldname)
if oldname in ctx:
self.flabel += _(' <i>(copied from %s)</i>') % fr
else:
self.flabel += _(' <i>(renamed from %s)</i>') % fr
return oldname
def _readStatus(self, ctx, ctx2, wfile, status, changeselect, force):
def getstatus(repo, n1, n2, wfile):
m = match.exact(repo.root, repo.getcwd(), [wfile])
modified, added, removed = repo.status(n1, n2, match=m)[:3]
if wfile in modified:
return 'M'
if wfile in added:
return 'A'
if wfile in removed:
return 'R'
if wfile in ctx:
return 'C'
return None
isbfile = False
repo = ctx._repo
maxdiff = repo.maxdiff
self.flabel = u'<b>%s</b>' % self.filePath()
if ctx2:
# If a revision to compare to was provided, we must put it in
# the context of the subrepo as well
if ctx2._repo.root != ctx._repo.root:
wsub2, wfileinsub2, sctx2 = \
hglib.getDeepestSubrepoContainingFile(wfile, ctx2)
if wsub2:
ctx2 = sctx2
absfile = repo.wjoin(wfile)
if (wfile in ctx and 'l' in ctx.flags(wfile)) or \
os.path.islink(absfile):
if wfile in ctx:
data = ctx[wfile].data()
else:
data = os.readlink(absfile)
self.contents = data
self.flabel += _(' <i>(is a symlink)</i>')
return
if ctx2 is None:
ctx2 = ctx.p1()
if status is None:
status = getstatus(repo, ctx2.node(), ctx.node(), wfile)
mde = _('File or diffs not displayed: '
'File is larger than the specified max size.\n'
'maxdiff = %s KB') % (maxdiff // 1024)
if status in ('R', '!'):
if wfile in ctx.p1():
fctx = ctx.p1()[wfile]
if hglib.getestimatedsize(fctx) > maxdiff:
self.error = mde
else:
olddata = fctx.data()
if '\0' in olddata:
self.error = 'binary file'
else:
self.contents = olddata
self.flabel += _(' <i>(was deleted)</i>')
elif hasattr(ctx.p1(), 'hasStandin') and ctx.p1().hasStandin(wfile):
self.error = 'binary file'
self.flabel += _(' <i>(was deleted)</i>')
else:
self.flabel += _(' <i>(was added, now missing)</i>')
return
if status in ('I', '?'):
assert ctx.rev() is None
self.flabel += _(' <i>(is unversioned)</i>')
if os.path.getsize(absfile) > maxdiff:
self.error = mde
return
data = util.posixfile(absfile, 'r').read()
if not force and '\0' in data:
self.error = 'binary file'
else:
self.contents = data
return
if status in ('M', 'A', 'C'):
if ctx.hasStandin(wfile):
wfile = ctx.findStandin(wfile)
isbfile = True
try:
fctx, newdata = self._checkMaxDiff(ctx, wfile, maxdiff, force)
except _BadContent:
if status == 'A':
self._checkRenamed(repo, ctx, ctx2, wfile)
raise
self.contents = newdata
if status == 'C':
# no further comparison is necessary
return
for pctx in ctx.parents():
if 'x' in fctx.flags() and 'x' not in pctx.flags(wfile):
self.elabel = _("exec mode has been "
"<font color='red'>set</font>")
elif 'x' not in fctx.flags() and 'x' in pctx.flags(wfile):
self.elabel = _("exec mode has been "
"<font color='red'>unset</font>")
if status == 'A':
oldname = self._checkRenamed(repo, ctx, ctx2, wfile)
if not oldname:
return
olddata = ctx2[oldname].data()
elif status == 'M':
if wfile not in ctx2:
# merge situation where file was added in other branch
self.flabel += _(' <i>(was added)</i>')
return
oldname = wfile
olddata = ctx2[wfile].data()
else:
return
self.olddata = olddata
if changeselect:
diffopts = patch.difffeatureopts(repo.ui)
diffopts.git = True
m = match.exact(repo.root, repo.root, [wfile])
fp = cStringIO.StringIO()
copy = {}
if oldname != wfile:
copy[wfile] = oldname
patches = patch.diff(repo, ctx.node(), None, match=m,
opts=diffopts, copy=copy)
for c in patches:
fp.write(c)
fp.seek(0)
# feed diffs through parsepatch() for more fine grained
# chunk selection
filediffs = patch.parsepatch(fp)
if filediffs and filediffs[0].hunks:
self.changes = filediffs[0]
else:
self.diff = ''
return
self.changes.excludecount = 0
values = []
lines = 0
for chunk in self.changes.hunks:
buf = cStringIO.StringIO()
chunk.write(buf)
chunk.excluded = False
val = buf.getvalue()
values.append(val)
chunk.lineno = lines
chunk.linecount = len(val.splitlines())
lines += chunk.linecount
self.diff = ''.join(values)
else:
diffopts = patch.diffopts(repo.ui, {})
diffopts.git = False
newdate = dateutil.datestr(ctx.date())
olddate = dateutil.datestr(ctx2.date())
if isbfile:
olddata += '\0'
newdata += '\0'
difftext = hglib.unidifftext(olddata, olddate, newdata, newdate,
oldname, wfile, opts=diffopts)
if difftext:
self.diff = ('diff -r %s -r %s %s\n' % (ctx, ctx2, oldname)
+ difftext)
else:
self.diff = ''
def mergeStatus(self):
return self._mstatus
def diffText(self):
udiff = self._textToUnicode(self.diff or '')
if self.changes:
return udiff
return _trimdiffheader(udiff)
def setChunkExcluded(self, chunk, exclude):
assert chunk in self.changes.hunks
if chunk.excluded == exclude:
return
if exclude:
chunk.excluded = True
self.changes.excludecount += 1
else:
chunk.excluded = False
self.changes.excludecount -= 1
class DirData(_AbstractFileData):
def load(self, changeselect=False, force=False):
self.error = None
self.flabel = u'<b>%s</b>' % self.filePath()
# TODO: enforce maxdiff before generating diff?
ctx = self._ctx
pctx = self._pctx
try:
m = ctx.match(['path:%s' % self._wfile])
self.diff = ''.join(ctx.diff(pctx, m))
except (EnvironmentError, error.Abort), e:
self.error = hglib.tounicode(str(e))
return
if not force:
self.error = _checkdifferror(self.diff, ctx._repo.maxdiff)
if self.error:
self.error += u'\n\n' + forcedisplaymsg
def isDir(self):
return True
class PatchFileData(_AbstractFileData):
def load(self, changeselect=False, force=False):
ctx = self._ctx
wfile = self._wfile
maxdiff = ctx._repo.maxdiff
self.error = None
self.flabel = u'<b>%s</b>' % self.filePath()
try:
self.diff = ctx.thgmqpatchdata(wfile)
flags = ctx.flags(wfile)
except EnvironmentError, e:
self.error = hglib.tounicode(str(e))
return
if flags == 'x':
self.elabel = _("exec mode has been "
"<font color='red'>set</font>")
elif flags == '-':
self.elabel = _("exec mode has been "
"<font color='red'>unset</font>")
elif flags == 'l':
self.flabel += _(' <i>(is a symlink)</i>')
# Do not show patches that are too big or may be binary
if not force:
self.error = _checkdifferror(self.diff, maxdiff)
if self.error:
self.error += u'\n\n' + forcedisplaymsg
def rev(self):
# avoid mixing integer and localstr
return nullrev
def baseRev(self):
# patch has no comparison base
return nullrev
def diffText(self):
return _trimdiffheader(self._textToUnicode(self.diff or ''))
class PatchDirData(_AbstractFileData):
def load(self, changeselect=False, force=False):
self.error = None
self.flabel = u'<b>%s</b>' % self.filePath()
ctx = self._ctx
try:
self.diff = ''.join([ctx.thgmqpatchdata(f) for f in ctx.files()
if f.startswith(self._wfile + '/')])
except EnvironmentError, e:
self.error = hglib.tounicode(str(e))
return
if not force:
self.error = _checkdifferror(self.diff, ctx._repo.maxdiff)
if self.error:
self.error += u'\n\n' + forcedisplaymsg
def rev(self):
# avoid mixing integer and localstr
return nullrev
def baseRev(self):
# patch has no comparison base
return nullrev
def isDir(self):
return True
class SubrepoData(_AbstractFileData):
def __init__(self, ctx, pctx, path, status, rpath, subkind):
super(SubrepoData, self).__init__(ctx, pctx, path, status, rpath)
self._subkind = subkind
def createRebased(self, pctx):
# new status should be unknown, but currently it is 'S'
assert self._status == 'S' # TODO: replace 'S' by subrepo's status
return self.__class__(self._ctx, pctx, self._wfile, status=self._status,
rpath=self._rpath, subkind=self._subkind)
def load(self, changeselect=False, force=False):
ctx = self._ctx
ctx2 = self._pctx
if ctx2 is None:
ctx2 = ctx.p1()
wfile = self._wfile
self.error = None
self.flabel = u'<b>%s</b>' % self.filePath()
try:
def genSubrepoRevChangedDescription(subrelpath, sfrom, sto,
repo):
"""Generate a subrepository revision change description"""
out = []
def getLog(_ui, srepo, opts):
if srepo is None:
return _('changeset: %s') % opts['rev'][0][:12]
_ui.pushbuffer()
logOutput = ''
try:
commands.log(_ui, srepo, **opts)
logOutput = _ui.popbuffer()
if not logOutput:
return _('Initial revision') + u'\n'
except error.ParseError, e:
# Some mercurial versions have a bug that results in
# saving a subrepo node id in the .hgsubstate file
# which ends with a "+" character. If that is the
# case, add a warning to the output, but try to
# get the revision information anyway
for n, rev in enumerate(opts['rev']):
if rev.endswith('+'):
logOutput += _('[WARNING] Invalid subrepo '
'revision ID:\n\t%s\n\n') % rev
opts['rev'][n] = rev[:-1]
commands.log(_ui, srepo, **opts)
logOutput += _ui.popbuffer()
return hglib.tounicode(logOutput)
opts = {'date':None, 'user':None, 'rev':[sfrom]}
subabspath = os.path.join(repo.root, subrelpath)
missingsub = srepo is None or not os.path.isdir(subabspath)
sfromlog = ''
def isinitialrevision(rev):
return all([el == '0' for el in rev])
if isinitialrevision(sfrom):
sfrom = ''
if isinitialrevision(sto):
sto = ''
header = ''
if not sfrom and not sto:
sstatedesc = 'new'
out.append(_('Subrepo created and set to initial '
'revision.') + u'\n\n')
return out, sstatedesc
elif not sfrom:
sstatedesc = 'new'
header = _('Subrepo initialized to revision:') + u'\n\n'
elif not sto:
sstatedesc = 'removed'
out.append(_('Subrepo removed from repository.')
+ u'\n\n')
out.append(_('Previously the subrepository was '
'at the following revision:') + u'\n\n')
subinfo = getLog(_ui, srepo, {'rev': [sfrom]})
slog = hglib.tounicode(subinfo)
out.append(slog)
return out, sstatedesc
elif sfrom == sto:
sstatedesc = 'unchanged'
header = _('Subrepo was not changed.')
slog = _('changeset: %s') % sfrom[:12] + u'\n'
if missingsub:
header = _('[WARNING] Missing subrepo. '
'Update to this revision to clone it.') \
+ u'\n\n' + header
else:
try:
slog = getLog(_ui, srepo, opts)
except error.RepoError:
header = _('[WARNING] Incomplete subrepo. '
'Update to this revision to pull it.') \
+ u'\n\n' + header
out.append(header + u' ')
out.append(_('Subrepo state is:') + u'\n\n' + slog)
return out, sstatedesc
else:
sstatedesc = 'changed'
header = _('Revision has changed to:') + u'\n\n'
sfromlog = _('changeset: %s') % sfrom[:12] + u'\n\n'
if not missingsub:
try:
sfromlog = getLog(_ui, srepo, opts)
except error.RepoError:
sfromlog = _('changeset: %s '
'(not found on subrepository)') \
% sfrom[:12] + u'\n\n'
sfromlog = _('From:') + u'\n' + sfromlog
stolog = ''
if missingsub:
header = _(
'[WARNING] Missing changed subrepository. '
'Update to this revision to clone it.') \
+ u'\n\n' + header
stolog = _('changeset: %s') % sto[:12] + '\n\n'
sfromlog += _(
'Subrepository not found in the working '
'directory.') + '\n'
else:
try:
opts['rev'] = [sto]
stolog = getLog(_ui, srepo, opts)
except error.RepoError:
header = _(
'[WARNING] Incomplete changed subrepository. '
'Update to this revision to pull it.') \
+ u'\n\n' + header
stolog = _('changeset: %s '
'(not found on subrepository)') \
% sto[:12] + u'\n\n'
out.append(header)
out.append(stolog)
if sfromlog:
out.append(sfromlog)
return out, sstatedesc
srev = ctx.substate.get(wfile, hglib.nullsubrepostate)[1]
srepo = None
subabspath = os.path.join(ctx._repo.root, wfile)
sactual = ''
if os.path.isdir(subabspath):
try:
sub = ctx.sub(wfile)
if isinstance(sub, subrepo.hgsubrepo):
srepo = sub._repo
if srepo is not None:
sactual = srepo['.'].hex()
else:
self.error = _('Not a Mercurial subrepo, not '
'previewable')
return
except error.Abort, e:
self.error = (_('Error previewing subrepo: %s')
% hglib.tounicode(str(e))) + u'\n\n'
self.error += _('Subrepo may be damaged or '
'inaccessible.')
return
except KeyError, e:
# Missing, incomplete or removed subrepo.
# Will be handled later as such below
pass
out = []
# TODO: should be copied from the baseui
_ui = hglib.loadui()
_ui.setconfig('ui', 'paginate', 'off', 'subrepodata')
if srepo is None or ctx.rev() is not None:
data = []
else:
_ui.pushbuffer()
commands.status(_ui, srepo, modified=True, added=True,
removed=True, deleted=True)
data = _ui.popbuffer()
if data:
out.append(_('The subrepository is dirty.') + u' '
+ _('File Status:') + u'\n')
out.append(hglib.tounicode(data))
out.append(u'\n')
sstatedesc = 'changed'
if ctx.rev() is not None:
sparent = ctx2.substate.get(wfile, hglib.nullsubrepostate)[1]
subrepochange, sstatedesc = \
genSubrepoRevChangedDescription(wfile,
sparent, srev, ctx._repo)
out += subrepochange
else:
sstatedesc = 'dirty'
if srev != sactual:
subrepochange, sstatedesc = \
genSubrepoRevChangedDescription(wfile,
srev, sactual, ctx._repo)
out += subrepochange
if data:
sstatedesc += ' and dirty'
elif srev and not sactual:
sstatedesc = 'removed'
self.ucontents = u''.join(out).strip()
lbl = {
'changed': _('(is a changed sub-repository)'),
'unchanged': _('(is an unchanged sub-repository)'),
'dirty': _('(is a dirty sub-repository)'),
'new': _('(is a new sub-repository)'),
'removed': _('(is a removed sub-repository)'),
'changed and dirty': _('(is a changed and dirty '
'sub-repository)'),
'new and dirty': _('(is a new and dirty sub-repository)'),
'removed and dirty': _('(is a removed sub-repository)')
}[sstatedesc]
self.flabel += ' <i>' + lbl + '</i>'
if sactual:
lbl = ' <a href="repo:%%s">%s</a>' % _('open...')
self.flabel += lbl % hglib.tounicode(srepo.root)
except (EnvironmentError, error.RepoError, error.Abort), e:
self.error = _('Error previewing subrepo: %s') % \
hglib.tounicode(str(e))
def isDir(self):
return True
def subrepoType(self):
return self._subkind
def createFileData(ctx, ctx2, wfile, status=None, rpath=None, mstatus=None):
if isinstance(ctx, patchctx.patchctx):
if mstatus:
raise ValueError('invalid merge status for patch: %r' % mstatus)
return PatchFileData(ctx, ctx2, wfile, status, rpath)
return FileData(ctx, ctx2, wfile, status, rpath, mstatus)
def createDirData(ctx, pctx, path, rpath=None):
if isinstance(ctx, patchctx.patchctx):
return PatchDirData(ctx, pctx, path, rpath=rpath)
return DirData(ctx, pctx, path, rpath=rpath)
def createSubrepoData(ctx, pctx, path, status=None, rpath=None, subkind=None):
if not subkind:
subkind = ctx.substate.get(path, hglib.nullsubrepostate)[2]
# TODO: replace 'S' by subrepo's status
return SubrepoData(ctx, pctx, path, 'S', rpath, subkind)
def createNullData(repo):
ctx = repo[nullrev]
fd = FileData(ctx, ctx.p1(), '', 'C')
return fd
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