context: allow passing the common cset ancestor to fctx.ancestor This is used by the next patch to speed up merge.applyupdates.

merge: document how to 'undo' a merge

resolve: do not crash on empty mergestate I managed to get an empty .hg/merge/state file by interrupting a merge by pressing Control-C. This lead to this error: TypeError: a2b_hex() argument 1 must be string or read-only buffer, not None since localnode is assigned None before the iteration over lines in the mergestate begins.

revset: fix spelling typo

parser: fix URL to effbot

glog: fix crash on empty revision range

mercurial.spec: don't include convert-repo - use "hg convert" instead

revset: remove debugging leftover

contrib: update tcsh_completion with commands for 1.6 Added the following commands: debugbuilddag debugdag debugpushkey debugrevspec.

bookmarks: fix in/out return values

bookmarks: fix bogus cut and paste for outgoing

addchangegroup: pass in lock to release it before changegroup hook is called Currently, callers of addchangegroup first acquire the repository lock, usually to check that an unbundle request isn't racing. This means that changegroup hook actions that might write to a repo get stuck waiting for a lock. Here, we add a new optional lock parameter and update all the callers. Post-1.6 we may make it non-optional.

cmdutil: only output style header once in non-buffered mode (issue2130)

bookmarks: touch changelog on write to force hgweb reload

mq: explicit exit code when patch is already on top