bundle2: advertise bundle2 by default That way, any new server will be ready to accept bundle2 payload. The decision for the client to use it is still off by default so this is not turning bundle2 everywhere. We introduce a new kill switch for this in case stuff goes wrong.

subrepo: convert the os.path references in git to vfs There are a handful of os.path references in the free functions at the top of the module that will be trickier to remove.

subrepo: use vfs.removedirs instead of os.removedirs This patch also removes useless composing absolute path by "repo.wjoin()".

vfs: add removedirs

util: add removedirs as platform depending function According to fa901423ac23 introducing "windows._removedirs()": If a hg repository including working directory is a reparse point (directory symlinked or a junction point), then using os.removedirs will remove the reparse point erroneously. "windows._removedirs()" should be used instead of "os.removedirs()" on Windows. This patch adds "removedirs" as platform depending function to replace "os.removedirs()" invocations for portability and safety

subrepo: use vfs.unlink instead of os.remove This patch also removes useless composing absolute path by "os.path.join()".

subrepo: use vfs.rmtree instead of shutil.rmtree This patch also removes useless "shutil" import.

vfs: add rmtree This duplicates "onerror()" function from "svnsubrepo.remove()" for equivalence of replacing in subsequent patch. This "onerror()" function for "shutil.rmtree()" was introduced by 92b0d669637f, which avoids failure of removing svn repository on Windows.

subrepo: use vfs.readdir instead of os.listdir to avoid expensive stat calls "kind" information given from "vfs.readdir()" makes expensive stat calls "os.path.isdir()" and "os.path.islink()" useless.

editor: prefer 'intermediate-source' extra to use for HGREVISION environment variable Revision 51930a7180bd ('graft: record intermediate grafts in extras') introduced 'intermediate-source' extra which refers to the closest graft source. As 'intermediate-source' extra provides more detailed information about the source changeset than 'source' one, it is better to prefer the first one to use as a value of HGREVISION environment variable for an editor.