cmdutil: replace unix pipe handshake with file lock
The pipe handshake cannot be implemented with Windows detached process, which
disables handle inheritance.
Fix 2/3 for issue421
marked working directory as branch æ
adding foo
listening at http://localhost/ (bound to 127.0.0.1)
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
updating to branch æ
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
changeset: 0:867c11ce77b8
branch: æ
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: foo
pushing to http://localhost:PORT
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
changeset: 1:58e7c90d67cb
branch: æ
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: bar
changeset: 0:867c11ce77b8
branch: æ
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: foo
pushing to ssh://dummy/
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files