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.
% init
% commit
adding a
% annotate -c
8435f90966e4: a
% annotate -d
Thu Jan 01 00:00:01 1970 +0000: a
% annotate -n
0: a
% annotate -u
nobody: a
% annotate -cdnu
nobody 0 8435f90966e4 Thu Jan 01 00:00:01 1970 +0000: a
% annotate b
2: a
2: a
2: a
3: b
3: b
3: b
% annotate -nf b
0 a: a
1 a: a
1 a: a
3 b: b
3 b: b
3 b: b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
merging b
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% annotate after merge
0 a: a
1 a: a
1 a: a
3 b: b
4 b: c
3 b: b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
merging b
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% annotate after rename merge
0 a: a
6 b: z
1 a: a
3 b: b
4 b: c
3 b: b
7 b: d
% linkrev vs rev
0: a
1: a
1: a
% generate ABA rename configuration
% annotate after ABA with follow
foo: foo