|
|
"""automatically manage newlines in repository files
|
|
|
|
|
|
This extension allows you to manage the type of line endings (CRLF or
|
|
|
LF) that are used in the repository and in the local working
|
|
|
directory. That way you can get CRLF line endings on Windows and LF on
|
|
|
Unix/Mac, thereby letting everybody use their OS native line endings.
|
|
|
|
|
|
The extension reads its configuration from a versioned ``.hgeol``
|
|
|
configuration file found in the root of the working copy. The
|
|
|
``.hgeol`` file use the same syntax as all other Mercurial
|
|
|
configuration files. It uses two sections, ``[patterns]`` and
|
|
|
``[repository]``.
|
|
|
|
|
|
The ``[patterns]`` section specifies how line endings should be
|
|
|
converted between the working copy and the repository. The format is
|
|
|
specified by a file pattern. The first match is used, so put more
|
|
|
specific patterns first. The available line endings are ``LF``,
|
|
|
``CRLF``, and ``BIN``.
|
|
|
|
|
|
Files with the declared format of ``CRLF`` or ``LF`` are always
|
|
|
checked out and stored in the repository in that format and files
|
|
|
declared to be binary (``BIN``) are left unchanged. Additionally,
|
|
|
``native`` is an alias for checking out in the platform's default line
|
|
|
ending: ``LF`` on Unix (including Mac OS X) and ``CRLF`` on
|
|
|
Windows. Note that ``BIN`` (do nothing to line endings) is Mercurial's
|
|
|
default behaviour; it is only needed if you need to override a later,
|
|
|
more general pattern.
|
|
|
|
|
|
The optional ``[repository]`` section specifies the line endings to
|
|
|
use for files stored in the repository. It has a single setting,
|
|
|
``native``, which determines the storage line endings for files
|
|
|
declared as ``native`` in the ``[patterns]`` section. It can be set to
|
|
|
``LF`` or ``CRLF``. The default is ``LF``. For example, this means
|
|
|
that on Windows, files configured as ``native`` (``CRLF`` by default)
|
|
|
will be converted to ``LF`` when stored in the repository. Files
|
|
|
declared as ``LF``, ``CRLF``, or ``BIN`` in the ``[patterns]`` section
|
|
|
are always stored as-is in the repository.
|
|
|
|
|
|
Example versioned ``.hgeol`` file::
|
|
|
|
|
|
[patterns]
|
|
|
**.py = native
|
|
|
**.vcproj = CRLF
|
|
|
**.txt = native
|
|
|
Makefile = LF
|
|
|
**.jpg = BIN
|
|
|
|
|
|
[repository]
|
|
|
native = LF
|
|
|
|
|
|
.. note::
|
|
|
The rules will first apply when files are touched in the working
|
|
|
copy, e.g. by updating to null and back to tip to touch all files.
|
|
|
|
|
|
The extension uses an optional ``[eol]`` section in your hgrc file
|
|
|
(not the ``.hgeol`` file) for settings that control the overall
|
|
|
behavior. There are two settings:
|
|
|
|
|
|
- ``eol.native`` (default ``os.linesep``) can be set to ``LF`` or
|
|
|
``CRLF`` to override the default interpretation of ``native`` for
|
|
|
checkout. This can be used with :hg:`archive` on Unix, say, to
|
|
|
generate an archive where files have line endings for Windows.
|
|
|
|
|
|
- ``eol.only-consistent`` (default True) can be set to False to make
|
|
|
the extension convert files with inconsistent EOLs. Inconsistent
|
|
|
means that there is both ``CRLF`` and ``LF`` present in the file.
|
|
|
Such files are normally not touched under the assumption that they
|
|
|
have mixed EOLs on purpose.
|
|
|
|
|
|
The extension provides ``cleverencode:`` and ``cleverdecode:`` filters
|
|
|
like the deprecated win32text extension does. This means that you can
|
|
|
disable win32text and enable eol and your filters will still work. You
|
|
|
only need to these filters until you have prepared a ``.hgeol`` file.
|
|
|
|
|
|
The ``win32text.forbid*`` hooks provided by the win32text extension
|
|
|
have been unified into a single hook named ``eol.checkheadshook``. The
|
|
|
hook will lookup the expected line endings from the ``.hgeol`` file,
|
|
|
which means you must migrate to a ``.hgeol`` file first before using
|
|
|
the hook. ``eol.checkheadshook`` only checks heads, intermediate
|
|
|
invalid revisions will be pushed. To forbid them completely, use the
|
|
|
``eol.checkallhook`` hook. These hooks are best used as
|
|
|
``pretxnchangegroup`` hooks.
|
|
|
|
|
|
See :hg:`help patterns` for more information about the glob patterns
|
|
|
used.
|
|
|
"""
|
|
|
|
|
|
from mercurial.i18n import _
|
|
|
from mercurial import util, config, extensions, match, error
|
|
|
import re, os
|
|
|
|
|
|
# Matches a lone LF, i.e., one that is not part of CRLF.
|
|
|
singlelf = re.compile('(^|[^\r])\n')
|
|
|
# Matches a single EOL which can either be a CRLF where repeated CR
|
|
|
# are removed or a LF. We do not care about old Machintosh files, so a
|
|
|
# stray CR is an error.
|
|
|
eolre = re.compile('\r*\n')
|
|
|
|
|
|
|
|
|
def inconsistenteol(data):
|
|
|
return '\r\n' in data and singlelf.search(data)
|
|
|
|
|
|
def tolf(s, params, ui, **kwargs):
|
|
|
"""Filter to convert to LF EOLs."""
|
|
|
if util.binary(s):
|
|
|
return s
|
|
|
if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s):
|
|
|
return s
|
|
|
return eolre.sub('\n', s)
|
|
|
|
|
|
def tocrlf(s, params, ui, **kwargs):
|
|
|
"""Filter to convert to CRLF EOLs."""
|
|
|
if util.binary(s):
|
|
|
return s
|
|
|
if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s):
|
|
|
return s
|
|
|
return eolre.sub('\r\n', s)
|
|
|
|
|
|
def isbinary(s, params):
|
|
|
"""Filter to do nothing with the file."""
|
|
|
return s
|
|
|
|
|
|
filters = {
|
|
|
'to-lf': tolf,
|
|
|
'to-crlf': tocrlf,
|
|
|
'is-binary': isbinary,
|
|
|
# The following provide backwards compatibility with win32text
|
|
|
'cleverencode:': tolf,
|
|
|
'cleverdecode:': tocrlf
|
|
|
}
|
|
|
|
|
|
class eolfile(object):
|
|
|
def __init__(self, ui, root, data):
|
|
|
self._decode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'}
|
|
|
self._encode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'}
|
|
|
|
|
|
self.cfg = config.config()
|
|
|
# Our files should not be touched. The pattern must be
|
|
|
# inserted first override a '** = native' pattern.
|
|
|
self.cfg.set('patterns', '.hg*', 'BIN')
|
|
|
# We can then parse the user's patterns.
|
|
|
self.cfg.parse('.hgeol', data)
|
|
|
|
|
|
isrepolf = self.cfg.get('repository', 'native') != 'CRLF'
|
|
|
self._encode['NATIVE'] = isrepolf and 'to-lf' or 'to-crlf'
|
|
|
iswdlf = ui.config('eol', 'native', os.linesep) in ('LF', '\n')
|
|
|
self._decode['NATIVE'] = iswdlf and 'to-lf' or 'to-crlf'
|
|
|
|
|
|
include = []
|
|
|
exclude = []
|
|
|
for pattern, style in self.cfg.items('patterns'):
|
|
|
key = style.upper()
|
|
|
if key == 'BIN':
|
|
|
exclude.append(pattern)
|
|
|
else:
|
|
|
include.append(pattern)
|
|
|
# This will match the files for which we need to care
|
|
|
# about inconsistent newlines.
|
|
|
self.match = match.match(root, '', [], include, exclude)
|
|
|
|
|
|
def setfilters(self, ui):
|
|
|
for pattern, style in self.cfg.items('patterns'):
|
|
|
key = style.upper()
|
|
|
try:
|
|
|
ui.setconfig('decode', pattern, self._decode[key])
|
|
|
ui.setconfig('encode', pattern, self._encode[key])
|
|
|
except KeyError:
|
|
|
ui.warn(_("ignoring unknown EOL style '%s' from %s\n")
|
|
|
% (style, self.cfg.source('patterns', pattern)))
|
|
|
|
|
|
def checkrev(self, repo, ctx, files):
|
|
|
failed = []
|
|
|
for f in (files or ctx.files()):
|
|
|
if f not in ctx:
|
|
|
continue
|
|
|
for pattern, style in self.cfg.items('patterns'):
|
|
|
if not match.match(repo.root, '', [pattern])(f):
|
|
|
continue
|
|
|
target = self._encode[style.upper()]
|
|
|
data = ctx[f].data()
|
|
|
if (target == "to-lf" and "\r\n" in data
|
|
|
or target == "to-crlf" and singlelf.search(data)):
|
|
|
failed.append((str(ctx), target, f))
|
|
|
break
|
|
|
return failed
|
|
|
|
|
|
def parseeol(ui, repo, nodes):
|
|
|
try:
|
|
|
for node in nodes:
|
|
|
try:
|
|
|
if node is None:
|
|
|
# Cannot use workingctx.data() since it would load
|
|
|
# and cache the filters before we configure them.
|
|
|
data = repo.wfile('.hgeol').read()
|
|
|
else:
|
|
|
data = repo[node]['.hgeol'].data()
|
|
|
return eolfile(ui, repo.root, data)
|
|
|
except (IOError, LookupError):
|
|
|
pass
|
|
|
except error.ParseError, inst:
|
|
|
ui.warn(_("warning: ignoring .hgeol file due to parse error "
|
|
|
"at %s: %s\n") % (inst.args[1], inst.args[0]))
|
|
|
return None
|
|
|
|
|
|
def _checkhook(ui, repo, node, headsonly):
|
|
|
# Get revisions to check and touched files at the same time
|
|
|
files = set()
|
|
|
revs = set()
|
|
|
for rev in xrange(repo[node].rev(), len(repo)):
|
|
|
revs.add(rev)
|
|
|
if headsonly:
|
|
|
ctx = repo[rev]
|
|
|
files.update(ctx.files())
|
|
|
for pctx in ctx.parents():
|
|
|
revs.discard(pctx.rev())
|
|
|
failed = []
|
|
|
for rev in revs:
|
|
|
ctx = repo[rev]
|
|
|
eol = parseeol(ui, repo, [ctx.node()])
|
|
|
if eol:
|
|
|
failed.extend(eol.checkrev(repo, ctx, files))
|
|
|
|
|
|
if failed:
|
|
|
eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'}
|
|
|
msgs = []
|
|
|
for node, target, f in failed:
|
|
|
msgs.append(_(" %s in %s should not have %s line endings") %
|
|
|
(f, node, eols[target]))
|
|
|
raise util.Abort(_("end-of-line check failed:\n") + "\n".join(msgs))
|
|
|
|
|
|
def checkallhook(ui, repo, node, hooktype, **kwargs):
|
|
|
"""verify that files have expected EOLs"""
|
|
|
_checkhook(ui, repo, node, False)
|
|
|
|
|
|
def checkheadshook(ui, repo, node, hooktype, **kwargs):
|
|
|
"""verify that files have expected EOLs"""
|
|
|
_checkhook(ui, repo, node, True)
|
|
|
|
|
|
# "checkheadshook" used to be called "hook"
|
|
|
hook = checkheadshook
|
|
|
|
|
|
def preupdate(ui, repo, hooktype, parent1, parent2):
|
|
|
#print "preupdate for %s: %s -> %s" % (repo.root, parent1, parent2)
|
|
|
repo.loadeol([parent1])
|
|
|
return False
|
|
|
|
|
|
def uisetup(ui):
|
|
|
ui.setconfig('hooks', 'preupdate.eol', preupdate)
|
|
|
|
|
|
def extsetup(ui):
|
|
|
try:
|
|
|
extensions.find('win32text')
|
|
|
ui.warn(_("the eol extension is incompatible with the "
|
|
|
"win32text extension\n"))
|
|
|
except KeyError:
|
|
|
pass
|
|
|
|
|
|
|
|
|
def reposetup(ui, repo):
|
|
|
uisetup(repo.ui)
|
|
|
#print "reposetup for", repo.root
|
|
|
|
|
|
if not repo.local():
|
|
|
return
|
|
|
for name, fn in filters.iteritems():
|
|
|
repo.adddatafilter(name, fn)
|
|
|
|
|
|
ui.setconfig('patch', 'eol', 'auto')
|
|
|
|
|
|
class eolrepo(repo.__class__):
|
|
|
|
|
|
def loadeol(self, nodes):
|
|
|
eol = parseeol(self.ui, self, nodes)
|
|
|
if eol is None:
|
|
|
return None
|
|
|
eol.setfilters(self.ui)
|
|
|
return eol.match
|
|
|
|
|
|
def _hgcleardirstate(self):
|
|
|
self._eolfile = self.loadeol([None, 'tip'])
|
|
|
if not self._eolfile:
|
|
|
self._eolfile = util.never
|
|
|
return
|
|
|
|
|
|
try:
|
|
|
cachemtime = os.path.getmtime(self.join("eol.cache"))
|
|
|
except OSError:
|
|
|
cachemtime = 0
|
|
|
|
|
|
try:
|
|
|
eolmtime = os.path.getmtime(self.wjoin(".hgeol"))
|
|
|
except OSError:
|
|
|
eolmtime = 0
|
|
|
|
|
|
if eolmtime > cachemtime:
|
|
|
ui.debug("eol: detected change in .hgeol\n")
|
|
|
wlock = None
|
|
|
try:
|
|
|
wlock = self.wlock()
|
|
|
for f in self.dirstate:
|
|
|
if self.dirstate[f] == 'n':
|
|
|
# all normal files need to be looked at
|
|
|
# again since the new .hgeol file might no
|
|
|
# longer match a file it matched before
|
|
|
self.dirstate.normallookup(f)
|
|
|
# Touch the cache to update mtime.
|
|
|
self.opener("eol.cache", "w").close()
|
|
|
wlock.release()
|
|
|
except error.LockUnavailable:
|
|
|
# If we cannot lock the repository and clear the
|
|
|
# dirstate, then a commit might not see all files
|
|
|
# as modified. But if we cannot lock the
|
|
|
# repository, then we can also not make a commit,
|
|
|
# so ignore the error.
|
|
|
pass
|
|
|
|
|
|
def commitctx(self, ctx, error=False):
|
|
|
for f in sorted(ctx.added() + ctx.modified()):
|
|
|
if not self._eolfile(f):
|
|
|
continue
|
|
|
data = ctx[f].data()
|
|
|
if util.binary(data):
|
|
|
# We should not abort here, since the user should
|
|
|
# be able to say "** = native" to automatically
|
|
|
# have all non-binary files taken care of.
|
|
|
continue
|
|
|
if inconsistenteol(data):
|
|
|
raise util.Abort(_("inconsistent newline style "
|
|
|
"in %s\n" % f))
|
|
|
return super(eolrepo, self).commitctx(ctx, error)
|
|
|
repo.__class__ = eolrepo
|
|
|
repo._hgcleardirstate()
|
|
|
|
