view tests/test-mq-qimport.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.

% qimport non-existing-file
abort: unable to read non-existing-file
% import URL
adding url.diff to series file
url.diff
% import patch that already exists
abort: patch "url.diff" already exists
applying url.diff
now at: url.diff
foo
patch queue now empty
% qimport -f
adding url.diff to series file
applying url.diff
now at: url.diff
foo2
patch queue now empty
% build diff with CRLF
adding b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% qimport CRLF diff
adding b.diff to series file
applying b.diff
now at: b.diff
% try to import --push
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
adding another.diff to series file
applying another.diff
now at: another.diff
patch b.diff finalized without changeset message
patch another.diff finalized without changeset message