subrepo: be more careful with deletions of .hgsub and .hgsubstate (issue2844) We shouldn't try to process subrepos if .hgsub isn't present and we should remove .hgsubstate if .hgsub is marked for removal.

patch: dot not ignore hunk of files marked as 'deleted' git 'deleted' flag was processed unconditionnally and the file removed even if the related hunk was not matching.

patch: fix patchmeta/hunk synchronization in iterhunks() Synchronizing on bfile does not work on file removal where bfile is /dev/null. We match items on afile or bfile instead. The incorrect code makes iterhunks() to emit patchmeta and hunks separately in some cases. This is currently hidden by applydiff() being too tolerant when processing patchmeta, and will be fixed later.

patch: remove unnecessary exists() call in selectfile()

import: deprecate --base This option was a convenient hack introduced in Mercurial early days which unfortunately survived until now.

patch: remove redundant islink() call

extensions: update doc of enabled() and disabled() according to d5b525697ddb

localrepo: add savecommitmessage() to write last-message.txt