view tests/test-encoding.out @ 8849:80cc4b1a62d0

compare grep result between target and its parent

I found that typical case is that grep target is added at (*) revision
in the tree shown below.

     +--- 1(*) --- 3
     0
     +--- 2 ------ 4

Now, I expect 'hg grep --all' to show only rev:1 which is first
appearance of target line.

But 'hg grep --all' will tell:

  target line dis-appeared at 3 => 4
  target line     appeared at 2 => 3
  target line dis-appeared at 1 => 2
  target line     appeared at 0 => 1

because current 'hg grep' implementation compares not between target
revision and its parent, but between neighbor revisions in walkthrough
order.

I checked performance of this patch by "hg grep --follow --all
walkchangerevs" on whole Mercurial repo, and patched version could
complete as fast as un-patched one.

adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
(run 'hg update' to get a working copy)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% should fail with encoding error
M a
? latin-1
? latin-1-tag
? utf-8
transaction abort!
rollback completed
abort: decoding near ' encoded: é': 'ascii' codec can't decode byte 0xe9 in position 20: ordinal not in range(128)!
% these should work
marked working directory as branch é
% ascii
changeset:   5:db5520b4645f
branch:      ?
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin1 branch

changeset:   4:9cff3c980b58
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added tag ? for changeset 770b9b11621d

changeset:   3:770b9b11621d
tag:         ?
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     utf-8 e' encoded: ?

changeset:   2:0572af48b948
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e' encoded: ?

changeset:   1:0e5b7e3f9c4a
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     koi8-r: ????? = u'\u0440\u0442\u0443\u0442\u044c'

changeset:   0:1e78a93102a3
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e': ? = u'\xe9'

% latin-1
changeset:   5:db5520b4645f
branch:      é
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin1 branch

changeset:   4:9cff3c980b58
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added tag é for changeset 770b9b11621d

changeset:   3:770b9b11621d
tag:         é
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     utf-8 e' encoded: é

changeset:   2:0572af48b948
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e' encoded: é

changeset:   1:0e5b7e3f9c4a
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     koi8-r: ÒÔÕÔØ = u'\u0440\u0442\u0443\u0442\u044c'

changeset:   0:1e78a93102a3
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e': é = u'\xe9'

% utf-8
changeset:   5:db5520b4645f
branch:      é
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin1 branch

changeset:   4:9cff3c980b58
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added tag é for changeset 770b9b11621d

changeset:   3:770b9b11621d
tag:         é
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     utf-8 e' encoded: é

changeset:   2:0572af48b948
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e' encoded: é

changeset:   1:0e5b7e3f9c4a
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     koi8-r: ÒÔÕÔØ = u'\u0440\u0442\u0443\u0442\u044c'

changeset:   0:1e78a93102a3
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e': é = u'\xe9'

% ascii
tip                                5:db5520b4645f
?                                  3:770b9b11621d
% latin-1
tip                                5:db5520b4645f
é                                  3:770b9b11621d
% utf-8
tip                                5:db5520b4645f
é                                  3:770b9b11621d
% ascii
?                              5:db5520b4645f
default                        4:9cff3c980b58 (inactive)
% latin-1
é                              5:db5520b4645f
default                        4:9cff3c980b58 (inactive)
% utf-8
é                              5:db5520b4645f
default                        4:9cff3c980b58 (inactive)
% utf-8
changeset:   5:db5520b4645f
branch:      é
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin1 branch

changeset:   4:9cff3c980b58
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added tag é for changeset 770b9b11621d

changeset:   3:770b9b11621d
tag:         é
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     utf-8 e' encoded: é

changeset:   2:0572af48b948
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e' encoded: é

changeset:   1:0e5b7e3f9c4a
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     koi8-r: ртуть = u'\u0440\u0442\u0443\u0442\u044c'

changeset:   0:1e78a93102a3
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     latin-1 e': И = u'\xe9'

abort: unknown encoding: dolphin, please check your locale settings
abort: decoding near 'é': 'ascii' codec can't decode byte 0xe9 in position 0: ordinal not in range(128)!
abort: branch name not in UTF-8!