view tests/test-annotate.out @ 10189:e451e599fbcf

patch: support diff data loss detection and upgrade

In worst case, generating diff in upgrade mode can be two times more expensive
than generating it in git mode directly: we may have to regenerate the whole
diff again whenever a git feature is detected. Also, the first diff attempt is
completely buffered instead of being streamed. That said, even without having
profiled it yet, I am convinced we can fast-path the upgrade mode if necessary
were it to be used in regular diff commands, and not only in mq where avoiding
data loss is worth the price.

% init
% commit
adding a
% annotate -c
8435f90966e4: a
% annotate -cl
8435f90966e4:1: a
% annotate -d
Thu Jan 01 00:00:01 1970 +0000: a
% annotate -n
0: a
% annotate -nl
0:1: a
% annotate -u
nobody: a
% annotate -cdnu
nobody 0 8435f90966e4 Thu Jan 01 00:00:01 1970 +0000: a
% annotate -cdnul
nobody 0 8435f90966e4 Thu Jan 01 00:00:01 1970 +0000:1: a
% annotate -n b
2: a
2: a
2: a
3: b4
3: b5
3: b6
% annotate -nl b
2:1: a
2:2: a
2:3: a
3:4: b4
3:5: b5
3:6: b6
% annotate -nf b
0 a: a
1 a: a
1 a: a
3 b: b4
3 b: b5
3 b: b6
% annotate -nlf b
0 a:1: a
1 a:2: a
1 a:3: a
3 b:4: b4
3 b:5: b5
3 b:6: b6
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
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: b4
4 b: c
3 b: b5
% annotate after merge with -l
0 a:1: a
1 a:2: a
1 a:3: a
3 b:4: b4
4 b:5: c
3 b:5: b5
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head
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: b4
4 b: c
3 b: b5
7 b: d
% annotate after rename merge with -l
0 a:1: a
6 b:2: z
1 a:3: a
3 b:4: b4
4 b:5: c
3 b:5: b5
7 b:7: d
% linkrev vs rev
0: a
1: a
1: a
% linkrev vs rev with -l
0:1: a
1:2: a
1:3: a
% generate ABA rename configuration
% annotate after ABA with follow
foo: foo