hgweb: don't raise an exception when displying empty repos The nullid node claims it's in the default branch, but the branch dict is empty. This fixes the main symptom from issue696, but we may want to set branchtags()['default'] = nullid somewhere for empty repos.

make identify an optionalrepo command Fixes issue726.

copy: if destination ends with "/", make sure it's a directory Fixes issue724.

manifest: minor performance tweak

dirstate: speed up read and write read: - single call to len(st) - fewer assignments for position tracking - don't split apart tuple from unpack - use a literal for the unpack spec write: - localize variables and functions - avoid copied function call - use % for string concatenation

dirstate: make dir collision logic faster - shortcircuit decpath if we haven't built the _dirs map - increment only for leafnodes of directory tree (this should make construction more like O(nlog n) than O(n^2))

Merge with crew

convert-cvs: update test to pass on Linux

verify: report first bad changeset - add linkrev and file arguments to err - track lowest reported linkrev in err - find linkrev in a couple cases - sort linkrevs when reporting a bunch of errors against a file - tidy up lots of messages - make more robust against damaged indexes - report first bad changeset if an error is encountered

revlog: more robust for damaged indexes - fix flag reporting - make broken length reporting smarter

debugindex: more robust for damaged indexes

revlog: fix inlined revision transaction extra data (issue 749)