Add symlink method to util.opener.
Differences from os.symlink:
- the symlink name is relative to the opener base directory
- if a file with that name already exists, it's removed
- if necessary, parent directories are created
- if the system (OS or filesystem) doesn't support symlinks, a
regular file is created. Its contents are the symlink target.
marked working directory as branch a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
marked working directory as branch b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
marked working directory as branch c
c 5:5ca481e59b8c
a 1:dd6b440dd85a
b 4:22df7444f7c1 (inactive)
default 0:19709c5a4e75 (inactive)
-------
c 5:5ca481e59b8c
a 1:dd6b440dd85a