revlog.size() fix handling of rev == -1

use workingcontext.files() to detect if the repo is unclean

allow update to switch to a different branch if the repo is clean

Explicitly use REVLOGV0 instead of 0 in bundlerepo.

Define and use nullrev (revision of nullid) instead of -1.

Correct optimization from 3464f5e77f34; add a test. If there are two (or more) heads that point to the same .hgtags node, we can safely skip parsing the file in all but the last head. (In 3464f5e77f34, we were parsing the file in the first head and skipping all the others.)

log speedup: don't call revlog.node if we don't have to

log speedup: use list.extend to avoid an explicit loop

log speedup: use parentrevs in log and changeset_printer.show

log speedup: set quiet/verbose/debugflag in the fake ui object

log speedup: use only ui.write in changeset_printer.show - ui.status is not very useful, since this code is never executed when ui.quiet is true. - explicitly checking for ui.debug allows a regular hg log to run without looking at the manifest index - the calls to ui.note were converted for consistency

log speedup: walkchangerevs: filter the files only if we need them This speeds up hg log and significantly reduces memory usage (max RSS goes from ~92MB to ~21MB on the kernel repo), since we no longer store all the revisions in the cache.

Inform the user about the new URL when being redirected via http. Additionally the changed code ensures that the new URL is used, even if it doesn't end with the query string.

Stripping of query string (since 88b4755fa48f) stripped too much (issue327) rstrip(qs) not only strips qs from the right, but it continues stripping every char at the end of the URL that occurs on qs.

Merge with upstream

small refactoring of path normalization in dirstate.statwalk

Make util.unique return a list

Simplify ignore logic in dirstate.walk - kill blockignore hack - pull pconvert out of imatch - skip imatch when not ignoring

shortname: truncate at '.' too

improve walk docstrings

convert dict(zip(x,x)) to dict.fromkeys(x)

minor hg grep simplification

simplify dirstate walking - kill walkhelper - stop passing dc around - remove unused stat arg from statmatch (renamed imatch)

kill makewalk function

Pull getchange out of walkchangerevs

Make revrange return a list of ints so that callers don't have to convert

simplify revrange and revpair

lookup(str(x)) -> lookup(x)

Fixups for hg grep - kill trimuser function - remove ucache - simplify descending logic - fix files with matches logic - correct tests

Turn bundle file into a string for http push, for urllib2 over proxies.