comparison mercurial/sparse.py @ 33317:df1287268cc0

sparse: move config signature logic into core

This is a pretty straightforward port. It will be cleaned up in
a subsequent commit.

33316:310f7bcab50b

#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

from .i18n import _
from .node import nullid
from . import (
    error,

    return profiles

def invalidatesignaturecache(repo):
    repo._sparsesignaturecache.clear()

def writeconfig(repo, includes, excludes, profiles):
    """Write the sparse config file given a sparse configuration."""
    with repo.vfs('sparse', 'wb') as fh:
        for p in sorted(profiles):
            fh.write('%%include %s\n' % p)

33317:df1287268cc0

#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import hashlib

from .i18n import _
from .node import nullid
from . import (
    error,

    return profiles

def invalidatesignaturecache(repo):
    repo._sparsesignaturecache.clear()

def _checksum(repo, path):
    data = repo.vfs.read(path)
    return hashlib.sha1(data).hexdigest()

def configsignature(repo, includetemp=True):
    """Obtain the signature string for the current sparse configuration.

    This is used to construct a cache key for matchers.
    """
    cache = repo._sparsesignaturecache

    signature = cache.get('signature')

    if includetemp:
        tempsignature = cache.get('tempsignature')
    else:
        tempsignature = 0

    if signature is None or (includetemp and tempsignature is None):
        signature = 0
        try:
            signature = _checksum(repo, 'sparse')
        except (OSError, IOError):
            pass
        cache['signature'] = signature

        tempsignature = 0
        if includetemp:
            try:
                tempsignature = _checksum(repo, 'tempsparse')
            except (OSError, IOError):
                pass
            cache['tempsignature'] = tempsignature

    return '%s %s' % (str(signature), str(tempsignature))

def writeconfig(repo, includes, excludes, profiles):
    """Write the sparse config file given a sparse configuration."""
    with repo.vfs('sparse', 'wb') as fh:
        for p in sorted(profiles):
            fh.write('%%include %s\n' % p)