|
|
# rewriteutil.py - utility functions for rewriting changesets
|
|
|
#
|
|
|
# Copyright 2017 Octobus <contact@octobus.net>
|
|
|
#
|
|
|
# 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 re
|
|
|
|
|
|
from .i18n import _
|
|
|
from .node import (
|
|
|
hex,
|
|
|
nullrev,
|
|
|
)
|
|
|
|
|
|
from . import (
|
|
|
error,
|
|
|
obsolete,
|
|
|
obsutil,
|
|
|
revset,
|
|
|
scmutil,
|
|
|
util,
|
|
|
)
|
|
|
|
|
|
|
|
|
NODE_RE = re.compile(br'\b[0-9a-f]{6,64}\b')
|
|
|
|
|
|
|
|
|
def precheck(repo, revs, action=b'rewrite'):
|
|
|
"""check if revs can be rewritten
|
|
|
action is used to control the error message.
|
|
|
|
|
|
Make sure this function is called after taking the lock.
|
|
|
"""
|
|
|
if nullrev in revs:
|
|
|
msg = _(b"cannot %s the null revision") % action
|
|
|
hint = _(b"no changeset checked out")
|
|
|
raise error.InputError(msg, hint=hint)
|
|
|
|
|
|
if any(util.safehasattr(r, 'rev') for r in revs):
|
|
|
repo.ui.develwarn(b"rewriteutil.precheck called with ctx not revs")
|
|
|
revs = (r.rev() for r in revs)
|
|
|
|
|
|
if len(repo[None].parents()) > 1:
|
|
|
raise error.StateError(_(b"cannot %s changesets while merging") % action)
|
|
|
|
|
|
publicrevs = repo.revs(b'%ld and public()', revs)
|
|
|
if publicrevs:
|
|
|
msg = _(b"cannot %s public changesets") % action
|
|
|
hint = _(b"see 'hg help phases' for details")
|
|
|
raise error.InputError(msg, hint=hint)
|
|
|
|
|
|
newunstable = disallowednewunstable(repo, revs)
|
|
|
if newunstable:
|
|
|
hint = _(b"see 'hg help evolution.instability'")
|
|
|
raise error.InputError(
|
|
|
_(b"cannot %s changeset with children") % action, hint=hint
|
|
|
)
|
|
|
|
|
|
|
|
|
def disallowednewunstable(repo, revs):
|
|
|
"""Checks whether editing the revs will create new unstable changesets and
|
|
|
are we allowed to create them.
|
|
|
|
|
|
To allow new unstable changesets, set the config:
|
|
|
`experimental.evolution.allowunstable=True`
|
|
|
"""
|
|
|
allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
|
|
|
if allowunstable:
|
|
|
return revset.baseset()
|
|
|
return repo.revs(b"(%ld::) - %ld", revs, revs)
|
|
|
|
|
|
|
|
|
def skip_empty_successor(ui, command):
|
|
|
empty_successor = ui.config(b'rewrite', b'empty-successor')
|
|
|
if empty_successor == b'skip':
|
|
|
return True
|
|
|
elif empty_successor == b'keep':
|
|
|
return False
|
|
|
else:
|
|
|
raise error.ConfigError(
|
|
|
_(
|
|
|
b"%s doesn't know how to handle config "
|
|
|
b"rewrite.empty-successor=%s (only 'skip' and 'keep' are "
|
|
|
b"supported)"
|
|
|
)
|
|
|
% (command, empty_successor)
|
|
|
)
|
|
|
|
|
|
|
|
|
def update_hash_refs(repo, commitmsg, pending=None):
|
|
|
"""Replace all obsolete commit hashes in the message with the current hash.
|
|
|
|
|
|
If the obsolete commit was split or is divergent, the hash is not replaced
|
|
|
as there's no way to know which successor to choose.
|
|
|
|
|
|
For commands that update a series of commits in the current transaction, the
|
|
|
new obsolete markers can be considered by setting ``pending`` to a mapping
|
|
|
of ``pending[oldnode] = [successor_node1, successor_node2,..]``.
|
|
|
"""
|
|
|
if not pending:
|
|
|
pending = {}
|
|
|
cache = {}
|
|
|
hashes = re.findall(NODE_RE, commitmsg)
|
|
|
unfi = repo.unfiltered()
|
|
|
for h in hashes:
|
|
|
fullnode = scmutil.resolvehexnodeidprefix(unfi, h)
|
|
|
if fullnode is None:
|
|
|
continue
|
|
|
ctx = unfi[fullnode]
|
|
|
if not ctx.obsolete():
|
|
|
successors = pending.get(fullnode)
|
|
|
if successors is None:
|
|
|
continue
|
|
|
# obsutil.successorssets() returns a list of list of nodes
|
|
|
successors = [successors]
|
|
|
else:
|
|
|
successors = obsutil.successorssets(repo, ctx.node(), cache=cache)
|
|
|
|
|
|
# We can't make any assumptions about how to update the hash if the
|
|
|
# cset in question was split or diverged.
|
|
|
if len(successors) == 1 and len(successors[0]) == 1:
|
|
|
successor = successors[0][0]
|
|
|
if successor is not None:
|
|
|
newhash = hex(successor)
|
|
|
commitmsg = commitmsg.replace(h, newhash[: len(h)])
|
|
|
else:
|
|
|
repo.ui.note(
|
|
|
_(
|
|
|
b'The stale commit message reference to %s could '
|
|
|
b'not be updated\n(The referenced commit was dropped)\n'
|
|
|
)
|
|
|
% h
|
|
|
)
|
|
|
else:
|
|
|
repo.ui.note(
|
|
|
_(
|
|
|
b'The stale commit message reference to %s could '
|
|
|
b'not be updated\n'
|
|
|
)
|
|
|
% h
|
|
|
)
|
|
|
|
|
|
return commitmsg
|
|
|
|