sapling/hgext/hgsubversion/replay.py
Mateusz Kwapich ba6e9cd752 hgsubversion: move hgsubversion/hgsubversion to hgext
Summary: Move's the extension code into hgext/

Test Plan: Tests are fixed in a later commit.

Reviewers: quark, #mercurial

Reviewed By: quark

Differential Revision: https://phabricator.intern.facebook.com/D6698506

Signature: 6698506:1515628404:0006a07cef299eb3cd719f2fc0d5d381fdc2a3d5
2018-01-10 16:19:46 -08:00

243 lines
8.6 KiB
Python

import errno
import traceback
from mercurial import revlog
from mercurial import node
from mercurial import context
from mercurial import util as hgutil
import compathacks
import svnexternals
import util
class MissingPlainTextError(Exception):
"""Exception raised when the repo lacks a source file required for replaying
a txdelta.
"""
class ReplayException(Exception):
"""Exception raised when you try and commit but the replay encountered an
exception.
"""
def updateexternals(ui, meta, current):
# TODO fix and re-enable externals for single-directory clones
if not current.externals or meta.layout == 'single':
return
# accumulate externals records for all branches
revnum = current.rev.revnum
branches = {}
for path, entry in current.externals.iteritems():
if not meta.is_path_valid(path):
continue
p, b, bp = meta.split_branch_path(path)
if bp not in branches:
parent = meta.get_parent_revision(revnum, b)
pctx = meta.repo[parent]
branches[bp] = (svnexternals.parse(ui, pctx), pctx)
branches[bp][0][p] = entry
# register externals file changes
for bp, (external, pctx) in branches.iteritems():
if bp and bp[-1] != '/':
bp += '/'
updates = svnexternals.getchanges(ui, meta.repo, pctx, external)
for fn, data in updates.iteritems():
path = (bp and bp + fn) or fn
if data is not None:
current.set(path, data, False, False)
else:
current.delete(path)
def convert_rev(ui, meta, svn, r, tbdelta, firstrun):
try:
return _convert_rev(ui, meta, svn, r, tbdelta, firstrun)
finally:
meta.editor.current.close()
def _convert_rev(ui, meta, svn, r, tbdelta, firstrun):
editor = meta.editor
editor.current.clear()
editor.current.rev = r
editor.setsvn(svn)
if firstrun and meta.revmap.firstpulled <= 0:
# We know nothing about this project, so fetch everything before
# trying to apply deltas.
ui.debug('replay: fetching full revision\n')
svn.get_revision(r.revnum, editor)
else:
svn.get_replay(r.revnum, editor, meta.revmap.firstpulled)
editor.close()
current = editor.current
updateexternals(ui, meta, current)
if current.exception is not None: # pragma: no cover
traceback.print_exception(*current.exception)
raise ReplayException()
files_to_commit = current.files()
branch_batches = {}
rev = current.rev
date = meta.fixdate(rev.date)
# build up the branches that have files on them
failoninvalid = ui.configbool('hgsubversion',
'failoninvalidreplayfile', False)
for f in files_to_commit:
if not meta.is_path_valid(f):
if failoninvalid:
raise hgutil.Abort('file %s should not be in commit list' % f)
continue
p, b = meta.split_branch_path(f)[:2]
if b not in branch_batches:
branch_batches[b] = []
if p:
branch_batches[b].append((p, f))
closebranches = {}
for branch in tbdelta['branches'][1]:
branchedits = meta.revmap.branchedits(branch, rev.revnum)
if len(branchedits) < 1:
# can't close a branch that never existed
continue
ha = branchedits[0][1]
closebranches[branch] = ha
extraempty = (set(tbdelta['branches'][0]) -
(set(current.emptybranches) | set(branch_batches.keys())))
current.emptybranches.update([(x, False) for x in extraempty])
# 1. handle normal commits
closedrevs = closebranches.values()
for branch, files in branch_batches.iteritems():
if branch in current.emptybranches and files:
del current.emptybranches[branch]
if meta.skipbranch(branch):
# make sure we also get rid of it from emptybranches
if branch in current.emptybranches:
del current.emptybranches[branch]
continue
files = dict(files)
parents = meta.get_parent_revision(rev.revnum, branch), revlog.nullid
if parents[0] in closedrevs and branch in meta.closebranches:
continue
extra = meta.genextra(rev.revnum, branch)
tag = None
if branch is not None:
# New regular tag without modifications, it will be committed by
# svnmeta.committag(), we can skip the whole branch for now
tag = meta.get_path_tag(meta.remotename(branch))
if (tag and tag not in meta.tags
and branch not in meta.branches
and branch not in compathacks.branchset(meta.repo)
and not files):
continue
parentctx = meta.repo.changectx(parents[0])
if tag:
if parentctx.node() == node.nullid:
continue
extra.update({'branch': parentctx.extra().get('branch', None),
'close': 1})
def filectxfn(repo, memctx, path):
current_file = files[path]
try:
data, isexec, islink, copied = current.pop(current_file)
except IOError:
return compathacks.filectxfn_deleted_reraise(memctx)
if isexec is None or islink is None:
flags = parentctx.flags(path)
if isexec is None:
isexec = 'x' in flags
if islink is None:
islink = 'l' in flags
if data is not None:
if islink:
if data.startswith('link '):
data = data[len('link '):]
else:
ui.debug('file marked as link, but may contain data: '
'%s\n' % current_file)
else:
data = parentctx.filectx(path).data()
return compathacks.makememfilectx(repo,
memctx=memctx,
path=path,
data=data,
islink=islink,
isexec=isexec,
copied=copied)
meta.mapbranch(extra)
if 'branch' not in extra:
extra['branch'] = 'default'
current_ctx = context.memctx(meta.repo,
parents,
util.forceutf8(meta.getmessage(rev)),
[util.forceutf8(f) for f in files.keys()],
filectxfn,
util.forceutf8(meta.authors[rev.author]),
date,
extra)
new_hash = meta.repo.svn_commitctx(current_ctx)
util.describe_commit(ui, new_hash, branch)
if (rev.revnum, branch) not in meta.revmap and not tag:
meta.revmap[rev.revnum, branch] = new_hash
if tag:
meta.movetag(tag, new_hash, rev, date)
meta.addedtags.pop(tag, None)
# 2. handle branches that need to be committed without any files
for branch in current.emptybranches:
if meta.skipbranch(branch):
continue
ha = meta.get_parent_revision(rev.revnum, branch)
if ha == node.nullid:
continue
# Why are we constructing this? Follow up! (T24862348)
meta.repo.changectx(ha)
files = []
def del_all_files(*args):
raise IOError(errno.ENOENT, 'deleting all files')
# True here means nuke all files. This happens when you
# replace a branch root with an empty directory
if current.emptybranches[branch]:
files = meta.repo[ha].files()
extra = meta.genextra(rev.revnum, branch)
meta.mapbranch(extra)
current_ctx = context.memctx(meta.repo,
(ha, node.nullid),
util.forceutf8(meta.getmessage(rev)),
[util.forceutf8(f) for f in files],
del_all_files,
util.forceutf8(meta.authors[rev.author]),
date,
extra)
new_hash = meta.repo.svn_commitctx(current_ctx)
util.describe_commit(ui, new_hash, branch)
if (rev.revnum, branch) not in meta.revmap:
meta.revmap[rev.revnum, branch] = new_hash
return closebranches