comparison hgext/eol.py @ 43076:2372284d9457

formatting: blacken the codebase

This is using my patch to black
(https://github.com/psf/black/pull/826) so we don't un-wrap collection
literals.

Done with:

  hg files 'set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**"' | xargs black -S

# skip-blame mass-reformatting only

# no-check-commit reformats foo_bar functions

Differential Revision: https://phab.mercurial-scm.org/D6971

43075:57875cf423c9

    pycompat,
    registrar,
    scmutil,
    util,
)
from mercurial.utils import (
    stringutil,
)

# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'ships-with-hg-core'

configtable = {}
configitem = registrar.configitem(configtable)

configitem('eol', 'fix-trailing-newline',
    default=False,
)
configitem('eol', 'native',
    default=pycompat.oslinesep,
)
configitem('eol', 'only-consistent',
    default=True,
)

# Matches a lone LF, i.e., one that is not part of CRLF.
singlelf = 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 stringutil.binary(s):
        return s
    if ui.configbool('eol', 'only-consistent') and inconsistenteol(s):
        return s
    if (ui.configbool('eol', 'fix-trailing-newline')
        and s and not s.endswith('\n')):
        s = s + '\n'
    return util.tolf(s)

def tocrlf(s, params, ui, **kwargs):
    """Filter to convert to CRLF EOLs."""
    if stringutil.binary(s):
        return s
    if ui.configbool('eol', 'only-consistent') and inconsistenteol(s):
        return s
    if (ui.configbool('eol', 'fix-trailing-newline')
        and s and not s.endswith('\n')):
        s = s + '\n'
    return util.tocrlf(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'}

        for pattern, key, m in self.patterns:
            try:
                ui.setconfig('decode', pattern, self._decode[key], 'eol')
                ui.setconfig('encode', pattern, self._encode[key], 'eol')
            except KeyError:
                ui.warn(_("ignoring unknown EOL style '%s' from %s\n")
                        % (key, self.cfg.source('patterns', pattern)))
        # eol.only-consistent can be specified in ~/.hgrc or .hgeol
        for k, v in self.cfg.items('eol'):
            ui.setconfig('eol', k, v, 'eol')

    def checkrev(self, repo, ctx, files):
        failed = []
        for f in (files or ctx.files()):
            if f not in ctx:
                continue
            for pattern, key, m in self.patterns:
                if not m(f):
                    continue
                target = self._encode[key]
                data = ctx[f].data()
                if (target == "to-lf" and "\r\n" in data
                    or target == "to-crlf" and singlelf.search(data)):
                    failed.append((f, target, bytes(ctx)))
                break
        return failed

def parseeol(ui, repo, nodes):
    try:
        for node in nodes:
            try:

                    data = repo[node]['.hgeol'].data()
                return eolfile(ui, repo.root, data)
            except (IOError, LookupError):
                pass
    except errormod.ParseError as inst:
        ui.warn(_("warning: ignoring .hgeol file due to parse error "
                  "at %s: %s\n") % (inst.args[1], inst.args[0]))
    return None

def ensureenabled(ui):
    """make sure the extension is enabled when used as hook

    When eol is used through hooks, the extension is never formally loaded and

    """
    if 'eol' in ui._knownconfig:
        return
    ui.setconfig('extensions', 'eol', '', source='internal')
    extensions.loadall(ui, ['eol'])

def _checkhook(ui, repo, node, headsonly):
    # Get revisions to check and touched files at the same time
    ensureenabled(ui)
    files = set()

    if failed:
        eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'}
        msgs = []
        for f, target, node in sorted(failed):
            msgs.append(_("  %s in %s should not have %s line endings") %
                        (f, node, eols[target]))
        raise errormod.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):
    p1node = scmutil.resolvehexnodeidprefix(repo, parent1)
    repo.loadeol([p1node])
    return False

def uisetup(ui):
    ui.setconfig('hooks', 'preupdate.eol', preupdate, 'eol')

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):

        repo.adddatafilter(name, fn)

    ui.setconfig('patch', 'eol', 'auto', 'eol')

    class eolrepo(repo.__class__):

        def loadeol(self, nodes):
            eol = parseeol(self.ui, self, nodes)
            if eol is None:
                return None
            eol.copytoui(self.ui)

                    # 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 errormod.Abort(_("inconsistent newline style "
                                           "in %s\n") % f)
            return super(eolrepo, self).commitctx(ctx, error, origctx)
    repo.__class__ = eolrepo
    repo._hgcleardirstate()

43076:2372284d9457

    pycompat,
    registrar,
    scmutil,
    util,
)
from mercurial.utils import stringutil

# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'ships-with-hg-core'

configtable = {}
configitem = registrar.configitem(configtable)

configitem(
    'eol', 'fix-trailing-newline', default=False,
)
configitem(
    'eol', 'native', default=pycompat.oslinesep,
)
configitem(
    'eol', 'only-consistent', default=True,
)

# Matches a lone LF, i.e., one that is not part of CRLF.
singlelf = 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 stringutil.binary(s):
        return s
    if ui.configbool('eol', 'only-consistent') and inconsistenteol(s):
        return s
    if (
        ui.configbool('eol', 'fix-trailing-newline')
        and s
        and not s.endswith('\n')
    ):
        s = s + '\n'
    return util.tolf(s)


def tocrlf(s, params, ui, **kwargs):
    """Filter to convert to CRLF EOLs."""
    if stringutil.binary(s):
        return s
    if ui.configbool('eol', 'only-consistent') and inconsistenteol(s):
        return s
    if (
        ui.configbool('eol', 'fix-trailing-newline')
        and s
        and not s.endswith('\n')
    ):
        s = s + '\n'
    return util.tocrlf(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'}

        for pattern, key, m in self.patterns:
            try:
                ui.setconfig('decode', pattern, self._decode[key], 'eol')
                ui.setconfig('encode', pattern, self._encode[key], 'eol')
            except KeyError:
                ui.warn(
                    _("ignoring unknown EOL style '%s' from %s\n")
                    % (key, self.cfg.source('patterns', pattern))
                )
        # eol.only-consistent can be specified in ~/.hgrc or .hgeol
        for k, v in self.cfg.items('eol'):
            ui.setconfig('eol', k, v, 'eol')

    def checkrev(self, repo, ctx, files):
        failed = []
        for f in files or ctx.files():
            if f not in ctx:
                continue
            for pattern, key, m in self.patterns:
                if not m(f):
                    continue
                target = self._encode[key]
                data = ctx[f].data()
                if (
                    target == "to-lf"
                    and "\r\n" in data
                    or target == "to-crlf"
                    and singlelf.search(data)
                ):
                    failed.append((f, target, bytes(ctx)))
                break
        return failed


def parseeol(ui, repo, nodes):
    try:
        for node in nodes:
            try:

                    data = repo[node]['.hgeol'].data()
                return eolfile(ui, repo.root, data)
            except (IOError, LookupError):
                pass
    except errormod.ParseError as inst:
        ui.warn(
            _("warning: ignoring .hgeol file due to parse error " "at %s: %s\n")
            % (inst.args[1], inst.args[0])
        )
    return None


def ensureenabled(ui):
    """make sure the extension is enabled when used as hook

    When eol is used through hooks, the extension is never formally loaded and

    """
    if 'eol' in ui._knownconfig:
        return
    ui.setconfig('extensions', 'eol', '', source='internal')
    extensions.loadall(ui, ['eol'])


def _checkhook(ui, repo, node, headsonly):
    # Get revisions to check and touched files at the same time
    ensureenabled(ui)
    files = set()

    if failed:
        eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'}
        msgs = []
        for f, target, node in sorted(failed):
            msgs.append(
                _("  %s in %s should not have %s line endings")
                % (f, node, eols[target])
            )
        raise errormod.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):
    p1node = scmutil.resolvehexnodeidprefix(repo, parent1)
    repo.loadeol([p1node])
    return False


def uisetup(ui):
    ui.setconfig('hooks', 'preupdate.eol', preupdate, 'eol')


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):

        repo.adddatafilter(name, fn)

    ui.setconfig('patch', 'eol', 'auto', 'eol')

    class eolrepo(repo.__class__):
        def loadeol(self, nodes):
            eol = parseeol(self.ui, self, nodes)
            if eol is None:
                return None
            eol.copytoui(self.ui)

                    # 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 errormod.Abort(
                        _("inconsistent newline style " "in %s\n") % f
                    )
            return super(eolrepo, self).commitctx(ctx, error, origctx)

    repo.__class__ = eolrepo
    repo._hgcleardirstate()