copy: do not copy file if name is disallowed anyway

util: new function checkfilename checkfilename checks for restrictions on filenames imposed by Mercurial itself, irrespective of on what platform it is run.

opener: use %r in format string for abort

wireproto: allow unbundle with hashed heads parameter (issue2126) Current wire protocol of unbundle sends the list of all heads in the remote repository to avoid race condition. This causes "URL too long" error on HTTP server when the repository has many heads. This change allows clients to send SHA1 hash of sorted head hashes instead. Also, this introduces "unbundlehash" capability to inform them that the server accepts hashed heads parameter.

merge with stable

encoding: avoid localstr when a string can be encoded losslessly (issue2763) localstr's hash method exists to prevent bogus matching on lossy local encodings. For instance, we don't want 'caf?' to match 'café' in an ASCII locale. But when café can be losslessly encoded in the local charset, we can simply use a normal string and avoid the hashing trick. This avoids using localstr's hash method, which would prevent a match between

merge with stable

revset: optimize stringset when subset == entire repo if range(len(repo)) is passed to stringset and x is a valid rev (checked before) then x is guaranteed to be in subset, we can check for that by comparing the lengths of the sets

help/revset: fix grammar

qrecord: provide help when mq is not enabled

record: improve help test coverage

paper: preserve whitespace on description instead of adding breaks This preserves the indentation of text in the changeset description. This is useful for example for descriptions containing command line use case examples like: $ hg -q heads 13934:648a834cca14 13912:71ea5b2b9517 Without this patch, such space-char indented text was just left aligned.

compact style: show bookmarks in the same manner as tags

revsets: preserve ordering with the or operator This is valuable because now revsets like 'bookmarks() or tip' will always show tip after bookmarks unless tip was itself a bookmark. This is a somewhat contrived example, but this behavior is useful for "where am I" type aliases that use log and revsets.

hgweb: set minimum number of revision to display to 1 when revcount is 0 When revcount goes to 0 nothing is displayed in hgweb. This patch sets revcount to max(revcount, 1).