def lighttransaction(repo):
# full fledged transactions have two serious issues:
# 1. they may cause infite loops through hooks
# that run commands
# 2. they are really expensive performance wise
#
# lighttransaction avoids certain hooks from being
# executed, doesn't check repo locks, doesn't check
# abandoned tr's (since we only record info) and doesn't
# do any tag handling
vfsmap = {"shared": repo.sharedvfs, "local": repo.localvfs}
tr = transaction.transaction(repo.ui.warn, repo.localvfs, vfsmap,
"undolog/tr.journal", "undolog/tr.undo")
return tr
def newtransaction():
# A transaction is required to write revlogs
report = lambda msg: None
return transaction.transaction(report, tvfs, {"plain": tvfs}, b"journal")