|
|
from __future__ import absolute_import
|
|
|
|
|
|
import collections
|
|
|
import errno
|
|
|
import shutil
|
|
|
import struct
|
|
|
|
|
|
from .i18n import _
|
|
|
from .node import (
|
|
|
bin,
|
|
|
hex,
|
|
|
nullrev,
|
|
|
)
|
|
|
from . import (
|
|
|
error,
|
|
|
filemerge,
|
|
|
pycompat,
|
|
|
util,
|
|
|
)
|
|
|
from .utils import hashutil
|
|
|
|
|
|
_pack = struct.pack
|
|
|
_unpack = struct.unpack
|
|
|
|
|
|
|
|
|
def _droponode(data):
|
|
|
# used for compatibility for v1
|
|
|
bits = data.split(b'\0')
|
|
|
bits = bits[:-2] + bits[-1:]
|
|
|
return b'\0'.join(bits)
|
|
|
|
|
|
|
|
|
def _filectxorabsent(hexnode, ctx, f):
|
|
|
if hexnode == ctx.repo().nodeconstants.nullhex:
|
|
|
return filemerge.absentfilectx(ctx, f)
|
|
|
else:
|
|
|
return ctx[f]
|
|
|
|
|
|
|
|
|
# Merge state record types. See ``mergestate`` docs for more.
|
|
|
|
|
|
####
|
|
|
# merge records which records metadata about a current merge
|
|
|
# exists only once in a mergestate
|
|
|
#####
|
|
|
RECORD_LOCAL = b'L'
|
|
|
RECORD_OTHER = b'O'
|
|
|
# record merge labels
|
|
|
RECORD_LABELS = b'l'
|
|
|
|
|
|
#####
|
|
|
# record extra information about files, with one entry containing info about one
|
|
|
# file. Hence, multiple of them can exists
|
|
|
#####
|
|
|
RECORD_FILE_VALUES = b'f'
|
|
|
|
|
|
#####
|
|
|
# merge records which represents state of individual merges of files/folders
|
|
|
# These are top level records for each entry containing merge related info.
|
|
|
# Each record of these has info about one file. Hence multiple of them can
|
|
|
# exists
|
|
|
#####
|
|
|
RECORD_MERGED = b'F'
|
|
|
RECORD_CHANGEDELETE_CONFLICT = b'C'
|
|
|
# the path was dir on one side of merge and file on another
|
|
|
RECORD_PATH_CONFLICT = b'P'
|
|
|
|
|
|
#####
|
|
|
# possible state which a merge entry can have. These are stored inside top-level
|
|
|
# merge records mentioned just above.
|
|
|
#####
|
|
|
MERGE_RECORD_UNRESOLVED = b'u'
|
|
|
MERGE_RECORD_RESOLVED = b'r'
|
|
|
MERGE_RECORD_UNRESOLVED_PATH = b'pu'
|
|
|
MERGE_RECORD_RESOLVED_PATH = b'pr'
|
|
|
# represents that the file was automatically merged in favor
|
|
|
# of other version. This info is used on commit.
|
|
|
# This is now deprecated and commit related information is now
|
|
|
# stored in RECORD_FILE_VALUES
|
|
|
MERGE_RECORD_MERGED_OTHER = b'o'
|
|
|
|
|
|
#####
|
|
|
# top level record which stores other unknown records. Multiple of these can
|
|
|
# exists
|
|
|
#####
|
|
|
RECORD_OVERRIDE = b't'
|
|
|
|
|
|
#####
|
|
|
# legacy records which are no longer used but kept to prevent breaking BC
|
|
|
#####
|
|
|
# This record was release in 5.4 and usage was removed in 5.5
|
|
|
LEGACY_RECORD_RESOLVED_OTHER = b'R'
|
|
|
# This record was release in 3.7 and usage was removed in 5.6
|
|
|
LEGACY_RECORD_DRIVER_RESOLVED = b'd'
|
|
|
# This record was release in 3.7 and usage was removed in 5.6
|
|
|
LEGACY_MERGE_DRIVER_STATE = b'm'
|
|
|
# This record was release in 3.7 and usage was removed in 5.6
|
|
|
LEGACY_MERGE_DRIVER_MERGE = b'D'
|
|
|
|
|
|
|
|
|
ACTION_FORGET = b'f'
|
|
|
ACTION_REMOVE = b'r'
|
|
|
ACTION_ADD = b'a'
|
|
|
ACTION_GET = b'g'
|
|
|
ACTION_PATH_CONFLICT = b'p'
|
|
|
ACTION_PATH_CONFLICT_RESOLVE = b'pr'
|
|
|
ACTION_ADD_MODIFIED = b'am'
|
|
|
ACTION_CREATED = b'c'
|
|
|
ACTION_DELETED_CHANGED = b'dc'
|
|
|
ACTION_CHANGED_DELETED = b'cd'
|
|
|
ACTION_MERGE = b'm'
|
|
|
ACTION_LOCAL_DIR_RENAME_GET = b'dg'
|
|
|
ACTION_DIR_RENAME_MOVE_LOCAL = b'dm'
|
|
|
ACTION_KEEP = b'k'
|
|
|
# the file was absent on local side before merge and we should
|
|
|
# keep it absent (absent means file not present, it can be a result
|
|
|
# of file deletion, rename etc.)
|
|
|
ACTION_KEEP_ABSENT = b'ka'
|
|
|
# the file is absent on the ancestor and remote side of the merge
|
|
|
# hence this file is new and we should keep it
|
|
|
ACTION_KEEP_NEW = b'kn'
|
|
|
ACTION_EXEC = b'e'
|
|
|
ACTION_CREATED_MERGE = b'cm'
|
|
|
|
|
|
# actions which are no op
|
|
|
NO_OP_ACTIONS = (
|
|
|
ACTION_KEEP,
|
|
|
ACTION_KEEP_ABSENT,
|
|
|
ACTION_KEEP_NEW,
|
|
|
)
|
|
|
|
|
|
|
|
|
class _mergestate_base(object):
|
|
|
"""track 3-way merge state of individual files
|
|
|
|
|
|
The merge state is stored on disk when needed. Two files are used: one with
|
|
|
an old format (version 1), and one with a new format (version 2). Version 2
|
|
|
stores a superset of the data in version 1, including new kinds of records
|
|
|
in the future. For more about the new format, see the documentation for
|
|
|
`_readrecordsv2`.
|
|
|
|
|
|
Each record can contain arbitrary content, and has an associated type. This
|
|
|
`type` should be a letter. If `type` is uppercase, the record is mandatory:
|
|
|
versions of Mercurial that don't support it should abort. If `type` is
|
|
|
lowercase, the record can be safely ignored.
|
|
|
|
|
|
Currently known records:
|
|
|
|
|
|
L: the node of the "local" part of the merge (hexified version)
|
|
|
O: the node of the "other" part of the merge (hexified version)
|
|
|
F: a file to be merged entry
|
|
|
C: a change/delete or delete/change conflict
|
|
|
P: a path conflict (file vs directory)
|
|
|
f: a (filename, dictionary) tuple of optional values for a given file
|
|
|
l: the labels for the parts of the merge.
|
|
|
|
|
|
Merge record states (stored in self._state, indexed by filename):
|
|
|
u: unresolved conflict
|
|
|
r: resolved conflict
|
|
|
pu: unresolved path conflict (file conflicts with directory)
|
|
|
pr: resolved path conflict
|
|
|
o: file was merged in favor of other parent of merge (DEPRECATED)
|
|
|
|
|
|
The resolve command transitions between 'u' and 'r' for conflicts and
|
|
|
'pu' and 'pr' for path conflicts.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, repo):
|
|
|
"""Initialize the merge state.
|
|
|
|
|
|
Do not use this directly! Instead call read() or clean()."""
|
|
|
self._repo = repo
|
|
|
self._state = {}
|
|
|
self._stateextras = collections.defaultdict(dict)
|
|
|
self._local = None
|
|
|
self._other = None
|
|
|
self._labels = None
|
|
|
# contains a mapping of form:
|
|
|
# {filename : (merge_return_value, action_to_be_performed}
|
|
|
# these are results of re-running merge process
|
|
|
# this dict is used to perform actions on dirstate caused by re-running
|
|
|
# the merge
|
|
|
self._results = {}
|
|
|
self._dirty = False
|
|
|
|
|
|
def reset(self):
|
|
|
pass
|
|
|
|
|
|
def start(self, node, other, labels=None):
|
|
|
self._local = node
|
|
|
self._other = other
|
|
|
self._labels = labels
|
|
|
|
|
|
@util.propertycache
|
|
|
def local(self):
|
|
|
if self._local is None:
|
|
|
msg = b"local accessed but self._local isn't set"
|
|
|
raise error.ProgrammingError(msg)
|
|
|
return self._local
|
|
|
|
|
|
@util.propertycache
|
|
|
def localctx(self):
|
|
|
return self._repo[self.local]
|
|
|
|
|
|
@util.propertycache
|
|
|
def other(self):
|
|
|
if self._other is None:
|
|
|
msg = b"other accessed but self._other isn't set"
|
|
|
raise error.ProgrammingError(msg)
|
|
|
return self._other
|
|
|
|
|
|
@util.propertycache
|
|
|
def otherctx(self):
|
|
|
return self._repo[self.other]
|
|
|
|
|
|
def active(self):
|
|
|
"""Whether mergestate is active.
|
|
|
|
|
|
Returns True if there appears to be mergestate. This is a rough proxy
|
|
|
for "is a merge in progress."
|
|
|
"""
|
|
|
return bool(self._local) or bool(self._state)
|
|
|
|
|
|
def commit(self):
|
|
|
"""Write current state on disk (if necessary)"""
|
|
|
|
|
|
@staticmethod
|
|
|
def getlocalkey(path):
|
|
|
"""hash the path of a local file context for storage in the .hg/merge
|
|
|
directory."""
|
|
|
|
|
|
return hex(hashutil.sha1(path).digest())
|
|
|
|
|
|
def _make_backup(self, fctx, localkey):
|
|
|
raise NotImplementedError()
|
|
|
|
|
|
def _restore_backup(self, fctx, localkey, flags):
|
|
|
raise NotImplementedError()
|
|
|
|
|
|
def add(self, fcl, fco, fca, fd):
|
|
|
"""add a new (potentially?) conflicting file the merge state
|
|
|
fcl: file context for local,
|
|
|
fco: file context for remote,
|
|
|
fca: file context for ancestors,
|
|
|
fd: file path of the resulting merge.
|
|
|
|
|
|
note: also write the local version to the `.hg/merge` directory.
|
|
|
"""
|
|
|
if fcl.isabsent():
|
|
|
localkey = self._repo.nodeconstants.nullhex
|
|
|
else:
|
|
|
localkey = mergestate.getlocalkey(fcl.path())
|
|
|
self._make_backup(fcl, localkey)
|
|
|
self._state[fd] = [
|
|
|
MERGE_RECORD_UNRESOLVED,
|
|
|
localkey,
|
|
|
fcl.path(),
|
|
|
fca.path(),
|
|
|
hex(fca.filenode()),
|
|
|
fco.path(),
|
|
|
hex(fco.filenode()),
|
|
|
fcl.flags(),
|
|
|
]
|
|
|
self._stateextras[fd][b'ancestorlinknode'] = hex(fca.node())
|
|
|
self._dirty = True
|
|
|
|
|
|
def addpathconflict(self, path, frename, forigin):
|
|
|
"""add a new conflicting path to the merge state
|
|
|
path: the path that conflicts
|
|
|
frename: the filename the conflicting file was renamed to
|
|
|
forigin: origin of the file ('l' or 'r' for local/remote)
|
|
|
"""
|
|
|
self._state[path] = [MERGE_RECORD_UNRESOLVED_PATH, frename, forigin]
|
|
|
self._dirty = True
|
|
|
|
|
|
def addcommitinfo(self, path, data):
|
|
|
"""stores information which is required at commit
|
|
|
into _stateextras"""
|
|
|
self._stateextras[path].update(data)
|
|
|
self._dirty = True
|
|
|
|
|
|
def __contains__(self, dfile):
|
|
|
return dfile in self._state
|
|
|
|
|
|
def __getitem__(self, dfile):
|
|
|
return self._state[dfile][0]
|
|
|
|
|
|
def __iter__(self):
|
|
|
return iter(sorted(self._state))
|
|
|
|
|
|
def files(self):
|
|
|
return self._state.keys()
|
|
|
|
|
|
def mark(self, dfile, state):
|
|
|
self._state[dfile][0] = state
|
|
|
self._dirty = True
|
|
|
|
|
|
def unresolved(self):
|
|
|
"""Obtain the paths of unresolved files."""
|
|
|
|
|
|
for f, entry in pycompat.iteritems(self._state):
|
|
|
if entry[0] in (
|
|
|
MERGE_RECORD_UNRESOLVED,
|
|
|
MERGE_RECORD_UNRESOLVED_PATH,
|
|
|
):
|
|
|
yield f
|
|
|
|
|
|
def allextras(self):
|
|
|
"""return all extras information stored with the mergestate"""
|
|
|
return self._stateextras
|
|
|
|
|
|
def extras(self, filename):
|
|
|
"""return extras stored with the mergestate for the given filename"""
|
|
|
return self._stateextras[filename]
|
|
|
|
|
|
def resolve(self, dfile, wctx):
|
|
|
"""run merge process for dfile
|
|
|
|
|
|
Returns the exit code of the merge."""
|
|
|
if self[dfile] in (
|
|
|
MERGE_RECORD_RESOLVED,
|
|
|
LEGACY_RECORD_DRIVER_RESOLVED,
|
|
|
):
|
|
|
return 0
|
|
|
stateentry = self._state[dfile]
|
|
|
state, localkey, lfile, afile, anode, ofile, onode, flags = stateentry
|
|
|
octx = self._repo[self._other]
|
|
|
extras = self.extras(dfile)
|
|
|
anccommitnode = extras.get(b'ancestorlinknode')
|
|
|
if anccommitnode:
|
|
|
actx = self._repo[anccommitnode]
|
|
|
else:
|
|
|
actx = None
|
|
|
fcd = _filectxorabsent(localkey, wctx, dfile)
|
|
|
fco = _filectxorabsent(onode, octx, ofile)
|
|
|
# TODO: move this to filectxorabsent
|
|
|
fca = self._repo.filectx(afile, fileid=anode, changectx=actx)
|
|
|
# "premerge" x flags
|
|
|
flo = fco.flags()
|
|
|
fla = fca.flags()
|
|
|
if b'x' in flags + flo + fla and b'l' not in flags + flo + fla:
|
|
|
if fca.rev() == nullrev and flags != flo:
|
|
|
self._repo.ui.warn(
|
|
|
_(
|
|
|
b'warning: cannot merge flags for %s '
|
|
|
b'without common ancestor - keeping local flags\n'
|
|
|
)
|
|
|
% afile
|
|
|
)
|
|
|
elif flags == fla:
|
|
|
flags = flo
|
|
|
# restore local
|
|
|
if localkey != self._repo.nodeconstants.nullhex:
|
|
|
self._restore_backup(wctx[dfile], localkey, flags)
|
|
|
else:
|
|
|
wctx[dfile].remove(ignoremissing=True)
|
|
|
complete, merge_ret, deleted = filemerge.filemerge(
|
|
|
self._repo,
|
|
|
wctx,
|
|
|
self._local,
|
|
|
lfile,
|
|
|
fcd,
|
|
|
fco,
|
|
|
fca,
|
|
|
labels=self._labels,
|
|
|
)
|
|
|
if merge_ret is None:
|
|
|
# If return value of merge is None, then there are no real conflict
|
|
|
del self._state[dfile]
|
|
|
self._dirty = True
|
|
|
elif not merge_ret:
|
|
|
self.mark(dfile, MERGE_RECORD_RESOLVED)
|
|
|
|
|
|
if complete:
|
|
|
action = None
|
|
|
if deleted:
|
|
|
if fcd.isabsent():
|
|
|
# dc: local picked. Need to drop if present, which may
|
|
|
# happen on re-resolves.
|
|
|
action = ACTION_FORGET
|
|
|
else:
|
|
|
# cd: remote picked (or otherwise deleted)
|
|
|
action = ACTION_REMOVE
|
|
|
else:
|
|
|
if fcd.isabsent(): # dc: remote picked
|
|
|
action = ACTION_GET
|
|
|
elif fco.isabsent(): # cd: local picked
|
|
|
if dfile in self.localctx:
|
|
|
action = ACTION_ADD_MODIFIED
|
|
|
else:
|
|
|
action = ACTION_ADD
|
|
|
# else: regular merges (no action necessary)
|
|
|
self._results[dfile] = merge_ret, action
|
|
|
|
|
|
return merge_ret
|
|
|
|
|
|
def counts(self):
|
|
|
"""return counts for updated, merged and removed files in this
|
|
|
session"""
|
|
|
updated, merged, removed = 0, 0, 0
|
|
|
for r, action in pycompat.itervalues(self._results):
|
|
|
if r is None:
|
|
|
updated += 1
|
|
|
elif r == 0:
|
|
|
if action == ACTION_REMOVE:
|
|
|
removed += 1
|
|
|
else:
|
|
|
merged += 1
|
|
|
return updated, merged, removed
|
|
|
|
|
|
def unresolvedcount(self):
|
|
|
"""get unresolved count for this merge (persistent)"""
|
|
|
return len(list(self.unresolved()))
|
|
|
|
|
|
def actions(self):
|
|
|
"""return lists of actions to perform on the dirstate"""
|
|
|
actions = {
|
|
|
ACTION_REMOVE: [],
|
|
|
ACTION_FORGET: [],
|
|
|
ACTION_ADD: [],
|
|
|
ACTION_ADD_MODIFIED: [],
|
|
|
ACTION_GET: [],
|
|
|
}
|
|
|
for f, (r, action) in pycompat.iteritems(self._results):
|
|
|
if action is not None:
|
|
|
actions[action].append((f, None, b"merge result"))
|
|
|
return actions
|
|
|
|
|
|
|
|
|
class mergestate(_mergestate_base):
|
|
|
|
|
|
statepathv1 = b'merge/state'
|
|
|
statepathv2 = b'merge/state2'
|
|
|
|
|
|
@staticmethod
|
|
|
def clean(repo):
|
|
|
"""Initialize a brand new merge state, removing any existing state on
|
|
|
disk."""
|
|
|
ms = mergestate(repo)
|
|
|
ms.reset()
|
|
|
return ms
|
|
|
|
|
|
@staticmethod
|
|
|
def read(repo):
|
|
|
"""Initialize the merge state, reading it from disk."""
|
|
|
ms = mergestate(repo)
|
|
|
ms._read()
|
|
|
return ms
|
|
|
|
|
|
def _read(self):
|
|
|
"""Analyse each record content to restore a serialized state from disk
|
|
|
|
|
|
This function process "record" entry produced by the de-serialization
|
|
|
of on disk file.
|
|
|
"""
|
|
|
unsupported = set()
|
|
|
records = self._readrecords()
|
|
|
for rtype, record in records:
|
|
|
if rtype == RECORD_LOCAL:
|
|
|
self._local = bin(record)
|
|
|
elif rtype == RECORD_OTHER:
|
|
|
self._other = bin(record)
|
|
|
elif rtype == LEGACY_MERGE_DRIVER_STATE:
|
|
|
pass
|
|
|
elif rtype in (
|
|
|
RECORD_MERGED,
|
|
|
RECORD_CHANGEDELETE_CONFLICT,
|
|
|
RECORD_PATH_CONFLICT,
|
|
|
LEGACY_MERGE_DRIVER_MERGE,
|
|
|
LEGACY_RECORD_RESOLVED_OTHER,
|
|
|
):
|
|
|
bits = record.split(b'\0')
|
|
|
# merge entry type MERGE_RECORD_MERGED_OTHER is deprecated
|
|
|
# and we now store related information in _stateextras, so
|
|
|
# lets write to _stateextras directly
|
|
|
if bits[1] == MERGE_RECORD_MERGED_OTHER:
|
|
|
self._stateextras[bits[0]][b'filenode-source'] = b'other'
|
|
|
else:
|
|
|
self._state[bits[0]] = bits[1:]
|
|
|
elif rtype == RECORD_FILE_VALUES:
|
|
|
filename, rawextras = record.split(b'\0', 1)
|
|
|
extraparts = rawextras.split(b'\0')
|
|
|
extras = {}
|
|
|
i = 0
|
|
|
while i < len(extraparts):
|
|
|
extras[extraparts[i]] = extraparts[i + 1]
|
|
|
i += 2
|
|
|
|
|
|
self._stateextras[filename] = extras
|
|
|
elif rtype == RECORD_LABELS:
|
|
|
labels = record.split(b'\0', 2)
|
|
|
self._labels = [l for l in labels if len(l) > 0]
|
|
|
elif not rtype.islower():
|
|
|
unsupported.add(rtype)
|
|
|
|
|
|
if unsupported:
|
|
|
raise error.UnsupportedMergeRecords(unsupported)
|
|
|
|
|
|
def _readrecords(self):
|
|
|
"""Read merge state from disk and return a list of record (TYPE, data)
|
|
|
|
|
|
We read data from both v1 and v2 files and decide which one to use.
|
|
|
|
|
|
V1 has been used by version prior to 2.9.1 and contains less data than
|
|
|
v2. We read both versions and check if no data in v2 contradicts
|
|
|
v1. If there is not contradiction we can safely assume that both v1
|
|
|
and v2 were written at the same time and use the extract data in v2. If
|
|
|
there is contradiction we ignore v2 content as we assume an old version
|
|
|
of Mercurial has overwritten the mergestate file and left an old v2
|
|
|
file around.
|
|
|
|
|
|
returns list of record [(TYPE, data), ...]"""
|
|
|
v1records = self._readrecordsv1()
|
|
|
v2records = self._readrecordsv2()
|
|
|
if self._v1v2match(v1records, v2records):
|
|
|
return v2records
|
|
|
else:
|
|
|
# v1 file is newer than v2 file, use it
|
|
|
# we have to infer the "other" changeset of the merge
|
|
|
# we cannot do better than that with v1 of the format
|
|
|
mctx = self._repo[None].parents()[-1]
|
|
|
v1records.append((RECORD_OTHER, mctx.hex()))
|
|
|
# add place holder "other" file node information
|
|
|
# nobody is using it yet so we do no need to fetch the data
|
|
|
# if mctx was wrong `mctx[bits[-2]]` may fails.
|
|
|
for idx, r in enumerate(v1records):
|
|
|
if r[0] == RECORD_MERGED:
|
|
|
bits = r[1].split(b'\0')
|
|
|
bits.insert(-2, b'')
|
|
|
v1records[idx] = (r[0], b'\0'.join(bits))
|
|
|
return v1records
|
|
|
|
|
|
def _v1v2match(self, v1records, v2records):
|
|
|
oldv2 = set() # old format version of v2 record
|
|
|
for rec in v2records:
|
|
|
if rec[0] == RECORD_LOCAL:
|
|
|
oldv2.add(rec)
|
|
|
elif rec[0] == RECORD_MERGED:
|
|
|
# drop the onode data (not contained in v1)
|
|
|
oldv2.add((RECORD_MERGED, _droponode(rec[1])))
|
|
|
for rec in v1records:
|
|
|
if rec not in oldv2:
|
|
|
return False
|
|
|
else:
|
|
|
return True
|
|
|
|
|
|
def _readrecordsv1(self):
|
|
|
"""read on disk merge state for version 1 file
|
|
|
|
|
|
returns list of record [(TYPE, data), ...]
|
|
|
|
|
|
Note: the "F" data from this file are one entry short
|
|
|
(no "other file node" entry)
|
|
|
"""
|
|
|
records = []
|
|
|
try:
|
|
|
f = self._repo.vfs(self.statepathv1)
|
|
|
for i, l in enumerate(f):
|
|
|
if i == 0:
|
|
|
records.append((RECORD_LOCAL, l[:-1]))
|
|
|
else:
|
|
|
records.append((RECORD_MERGED, l[:-1]))
|
|
|
f.close()
|
|
|
except IOError as err:
|
|
|
if err.errno != errno.ENOENT:
|
|
|
raise
|
|
|
return records
|
|
|
|
|
|
def _readrecordsv2(self):
|
|
|
"""read on disk merge state for version 2 file
|
|
|
|
|
|
This format is a list of arbitrary records of the form:
|
|
|
|
|
|
[type][length][content]
|
|
|
|
|
|
`type` is a single character, `length` is a 4 byte integer, and
|
|
|
`content` is an arbitrary byte sequence of length `length`.
|
|
|
|
|
|
Mercurial versions prior to 3.7 have a bug where if there are
|
|
|
unsupported mandatory merge records, attempting to clear out the merge
|
|
|
state with hg update --clean or similar aborts. The 't' record type
|
|
|
works around that by writing out what those versions treat as an
|
|
|
advisory record, but later versions interpret as special: the first
|
|
|
character is the 'real' record type and everything onwards is the data.
|
|
|
|
|
|
Returns list of records [(TYPE, data), ...]."""
|
|
|
records = []
|
|
|
try:
|
|
|
f = self._repo.vfs(self.statepathv2)
|
|
|
data = f.read()
|
|
|
off = 0
|
|
|
end = len(data)
|
|
|
while off < end:
|
|
|
rtype = data[off : off + 1]
|
|
|
off += 1
|
|
|
length = _unpack(b'>I', data[off : (off + 4)])[0]
|
|
|
off += 4
|
|
|
record = data[off : (off + length)]
|
|
|
off += length
|
|
|
if rtype == RECORD_OVERRIDE:
|
|
|
rtype, record = record[0:1], record[1:]
|
|
|
records.append((rtype, record))
|
|
|
f.close()
|
|
|
except IOError as err:
|
|
|
if err.errno != errno.ENOENT:
|
|
|
raise
|
|
|
return records
|
|
|
|
|
|
def commit(self):
|
|
|
if self._dirty:
|
|
|
records = self._makerecords()
|
|
|
self._writerecords(records)
|
|
|
self._dirty = False
|
|
|
|
|
|
def _makerecords(self):
|
|
|
records = []
|
|
|
records.append((RECORD_LOCAL, hex(self._local)))
|
|
|
records.append((RECORD_OTHER, hex(self._other)))
|
|
|
# Write out state items. In all cases, the value of the state map entry
|
|
|
# is written as the contents of the record. The record type depends on
|
|
|
# the type of state that is stored, and capital-letter records are used
|
|
|
# to prevent older versions of Mercurial that do not support the feature
|
|
|
# from loading them.
|
|
|
for filename, v in pycompat.iteritems(self._state):
|
|
|
if v[0] in (
|
|
|
MERGE_RECORD_UNRESOLVED_PATH,
|
|
|
MERGE_RECORD_RESOLVED_PATH,
|
|
|
):
|
|
|
# Path conflicts. These are stored in 'P' records. The current
|
|
|
# resolution state ('pu' or 'pr') is stored within the record.
|
|
|
records.append(
|
|
|
(RECORD_PATH_CONFLICT, b'\0'.join([filename] + v))
|
|
|
)
|
|
|
elif (
|
|
|
v[1] == self._repo.nodeconstants.nullhex
|
|
|
or v[6] == self._repo.nodeconstants.nullhex
|
|
|
):
|
|
|
# Change/Delete or Delete/Change conflicts. These are stored in
|
|
|
# 'C' records. v[1] is the local file, and is nullhex when the
|
|
|
# file is deleted locally ('dc'). v[6] is the remote file, and
|
|
|
# is nullhex when the file is deleted remotely ('cd').
|
|
|
records.append(
|
|
|
(RECORD_CHANGEDELETE_CONFLICT, b'\0'.join([filename] + v))
|
|
|
)
|
|
|
else:
|
|
|
# Normal files. These are stored in 'F' records.
|
|
|
records.append((RECORD_MERGED, b'\0'.join([filename] + v)))
|
|
|
for filename, extras in sorted(pycompat.iteritems(self._stateextras)):
|
|
|
rawextras = b'\0'.join(
|
|
|
b'%s\0%s' % (k, v) for k, v in pycompat.iteritems(extras)
|
|
|
)
|
|
|
records.append(
|
|
|
(RECORD_FILE_VALUES, b'%s\0%s' % (filename, rawextras))
|
|
|
)
|
|
|
if self._labels is not None:
|
|
|
labels = b'\0'.join(self._labels)
|
|
|
records.append((RECORD_LABELS, labels))
|
|
|
return records
|
|
|
|
|
|
def _writerecords(self, records):
|
|
|
"""Write current state on disk (both v1 and v2)"""
|
|
|
self._writerecordsv1(records)
|
|
|
self._writerecordsv2(records)
|
|
|
|
|
|
def _writerecordsv1(self, records):
|
|
|
"""Write current state on disk in a version 1 file"""
|
|
|
f = self._repo.vfs(self.statepathv1, b'wb')
|
|
|
irecords = iter(records)
|
|
|
lrecords = next(irecords)
|
|
|
assert lrecords[0] == RECORD_LOCAL
|
|
|
f.write(hex(self._local) + b'\n')
|
|
|
for rtype, data in irecords:
|
|
|
if rtype == RECORD_MERGED:
|
|
|
f.write(b'%s\n' % _droponode(data))
|
|
|
f.close()
|
|
|
|
|
|
def _writerecordsv2(self, records):
|
|
|
"""Write current state on disk in a version 2 file
|
|
|
|
|
|
See the docstring for _readrecordsv2 for why we use 't'."""
|
|
|
# these are the records that all version 2 clients can read
|
|
|
allowlist = (RECORD_LOCAL, RECORD_OTHER, RECORD_MERGED)
|
|
|
f = self._repo.vfs(self.statepathv2, b'wb')
|
|
|
for key, data in records:
|
|
|
assert len(key) == 1
|
|
|
if key not in allowlist:
|
|
|
key, data = RECORD_OVERRIDE, b'%s%s' % (key, data)
|
|
|
format = b'>sI%is' % len(data)
|
|
|
f.write(_pack(format, key, len(data), data))
|
|
|
f.close()
|
|
|
|
|
|
def _make_backup(self, fctx, localkey):
|
|
|
self._repo.vfs.write(b'merge/' + localkey, fctx.data())
|
|
|
|
|
|
def _restore_backup(self, fctx, localkey, flags):
|
|
|
with self._repo.vfs(b'merge/' + localkey) as f:
|
|
|
fctx.write(f.read(), flags)
|
|
|
|
|
|
def reset(self):
|
|
|
shutil.rmtree(self._repo.vfs.join(b'merge'), True)
|
|
|
|
|
|
|
|
|
class memmergestate(_mergestate_base):
|
|
|
def __init__(self, repo):
|
|
|
super(memmergestate, self).__init__(repo)
|
|
|
self._backups = {}
|
|
|
|
|
|
def _make_backup(self, fctx, localkey):
|
|
|
self._backups[localkey] = fctx.data()
|
|
|
|
|
|
def _restore_backup(self, fctx, localkey, flags):
|
|
|
fctx.write(self._backups[localkey], flags)
|
|
|
|
|
|
|
|
|
def recordupdates(repo, actions, branchmerge, getfiledata):
|
|
|
"""record merge actions to the dirstate"""
|
|
|
# remove (must come first)
|
|
|
for f, args, msg in actions.get(ACTION_REMOVE, []):
|
|
|
if branchmerge:
|
|
|
repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=False)
|
|
|
else:
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=False)
|
|
|
|
|
|
# forget (must come first)
|
|
|
for f, args, msg in actions.get(ACTION_FORGET, []):
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=False)
|
|
|
|
|
|
# resolve path conflicts
|
|
|
for f, args, msg in actions.get(ACTION_PATH_CONFLICT_RESOLVE, []):
|
|
|
(f0, origf0) = args
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
|
|
|
repo.dirstate.copy(origf0, f)
|
|
|
if f0 == origf0:
|
|
|
repo.dirstate.update_file(f0, p1_tracked=True, wc_tracked=False)
|
|
|
else:
|
|
|
repo.dirstate.update_file(f0, p1_tracked=False, wc_tracked=False)
|
|
|
|
|
|
# re-add
|
|
|
for f, args, msg in actions.get(ACTION_ADD, []):
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
|
|
|
|
|
|
# re-add/mark as modified
|
|
|
for f, args, msg in actions.get(ACTION_ADD_MODIFIED, []):
|
|
|
if branchmerge:
|
|
|
repo.dirstate.update_file(
|
|
|
f, p1_tracked=True, wc_tracked=True, possibly_dirty=True
|
|
|
)
|
|
|
else:
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
|
|
|
|
|
|
# exec change
|
|
|
for f, args, msg in actions.get(ACTION_EXEC, []):
|
|
|
repo.dirstate.update_file(
|
|
|
f, p1_tracked=True, wc_tracked=True, possibly_dirty=True
|
|
|
)
|
|
|
|
|
|
# keep
|
|
|
for f, args, msg in actions.get(ACTION_KEEP, []):
|
|
|
pass
|
|
|
|
|
|
# keep deleted
|
|
|
for f, args, msg in actions.get(ACTION_KEEP_ABSENT, []):
|
|
|
pass
|
|
|
|
|
|
# keep new
|
|
|
for f, args, msg in actions.get(ACTION_KEEP_NEW, []):
|
|
|
pass
|
|
|
|
|
|
# get
|
|
|
for f, args, msg in actions.get(ACTION_GET, []):
|
|
|
if branchmerge:
|
|
|
# tracked in p1 can be True also but update_file should not care
|
|
|
old_entry = repo.dirstate.get_entry(f)
|
|
|
p1_tracked = old_entry.any_tracked and not old_entry.added
|
|
|
repo.dirstate.update_file(
|
|
|
f,
|
|
|
p1_tracked=p1_tracked,
|
|
|
wc_tracked=True,
|
|
|
p2_info=True,
|
|
|
)
|
|
|
else:
|
|
|
parentfiledata = getfiledata[f] if getfiledata else None
|
|
|
repo.dirstate.update_file(
|
|
|
f,
|
|
|
p1_tracked=True,
|
|
|
wc_tracked=True,
|
|
|
parentfiledata=parentfiledata,
|
|
|
)
|
|
|
|
|
|
# merge
|
|
|
for f, args, msg in actions.get(ACTION_MERGE, []):
|
|
|
f1, f2, fa, move, anc = args
|
|
|
if branchmerge:
|
|
|
# We've done a branch merge, mark this file as merged
|
|
|
# so that we properly record the merger later
|
|
|
p1_tracked = f1 == f
|
|
|
repo.dirstate.update_file(
|
|
|
f,
|
|
|
p1_tracked=p1_tracked,
|
|
|
wc_tracked=True,
|
|
|
p2_info=True,
|
|
|
)
|
|
|
if f1 != f2: # copy/rename
|
|
|
if move:
|
|
|
repo.dirstate.update_file(
|
|
|
f1, p1_tracked=True, wc_tracked=False
|
|
|
)
|
|
|
if f1 != f:
|
|
|
repo.dirstate.copy(f1, f)
|
|
|
else:
|
|
|
repo.dirstate.copy(f2, f)
|
|
|
else:
|
|
|
# We've update-merged a locally modified file, so
|
|
|
# we set the dirstate to emulate a normal checkout
|
|
|
# of that file some time in the past. Thus our
|
|
|
# merge will appear as a normal local file
|
|
|
# modification.
|
|
|
if f2 == f: # file not locally copied/moved
|
|
|
repo.dirstate.update_file(
|
|
|
f, p1_tracked=True, wc_tracked=True, possibly_dirty=True
|
|
|
)
|
|
|
if move:
|
|
|
repo.dirstate.update_file(
|
|
|
f1, p1_tracked=False, wc_tracked=False
|
|
|
)
|
|
|
|
|
|
# directory rename, move local
|
|
|
for f, args, msg in actions.get(ACTION_DIR_RENAME_MOVE_LOCAL, []):
|
|
|
f0, flag = args
|
|
|
if branchmerge:
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
|
|
|
repo.dirstate.update_file(f0, p1_tracked=True, wc_tracked=False)
|
|
|
repo.dirstate.copy(f0, f)
|
|
|
else:
|
|
|
repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=True)
|
|
|
repo.dirstate.update_file(f0, p1_tracked=False, wc_tracked=False)
|
|
|
|
|
|
# directory rename, get
|
|
|
for f, args, msg in actions.get(ACTION_LOCAL_DIR_RENAME_GET, []):
|
|
|
f0, flag = args
|
|
|
if branchmerge:
|
|
|
repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
|
|
|
repo.dirstate.copy(f0, f)
|
|
|
else:
|
|
|
repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=True)
|
|
|
|
