posixfile_nt: '+' should allow read access. This fixes unexpected I/O error on committing many files due to cset:8a53b39cd402 (r4902 in crew).

posixfile_nt: '+' was understood as read mode instead of update.

httprepo: quote the path part of the URL This should fix a 'hg clone "http://hg.example.org/path with spaces/"' The code tries to do the right thing when the user passes a path that's already escaped in part (e.g. "http://hg.example.org/path%20with spaces/"). If we're redirected, urllib2 will happily follow the URL it's given without escaping anything. I'm not sure what we would have to hook to work around that.

dirstate: fix rebuild; add a test If rebuild calls invalidate, it will just queue a (re)read of the dirstate file, while what we really want is to empty the current state.

hgweb: don't use os.path.join to build URL parts

hgwebdir: change os.sep in the name of repos to "/"

Simplify/correct finding the hg executable (fixes issue644) Simply use find_exe('hg') as the default value for $HG and require to manually set it if you have special requirements. While the default will not always be 100% correct (i.e. the identical hg version) for many users it is and for the others the hg executable found in the PATH should do most things correctly. Developers or other users with multiple installs can set $HG or run something like util.set_hgexecutable in their shell or python scripts. Additionally util.hgexecutable() is now available so extensions can access the value with a public interface, too.