comparison tests/test-split.t @ 42856:3cf091843b4f

split: handle partial commit of renames when doing split or record (issue5723)

When using split or record, using either interface (text or curses), selecting
portions of the file to be committed/recorded did not work; the entire file was
treated as having been selected. This was because the logic for handling partial
application of the patches relies on knowing what files are "new with
modifications" and it doesn't treat "rename destination" as "new".

There was a complicating issue, however. We're relying on the patch header
specifying the copy from/to information, which works as long as the 'copy from'
file is there. In the case of renames, however, the 'rename from' file is *not*
there, so we need to add it back.

Differential Revision: https://phab.mercurial-scm.org/D6768

42855:1fd530b1e1cf

  $ printf 'y\ny\ny\n' | hg split
  abort: cannot split an empty revision
  [255]
#endif

Test that splitting copies works properly (issue5723)
----------------------------------------------------

  $ hg init $TESTTMP/issue5723-cp

42856:3cf091843b4f

  $ printf 'y\ny\ny\n' | hg split
  abort: cannot split an empty revision
  [255]
#endif

Test that splitting moves works properly (issue5723)
----------------------------------------------------

  $ hg init $TESTTMP/issue5723-mv
  $ cd $TESTTMP/issue5723-mv
  $ printf '1\n2\n' > file
  $ hg ci -qAm initial
  $ hg mv file file2
  $ printf 'a\nb\n1\n2\n3\n4\n' > file2
  $ cat > $TESTTMP/messages <<EOF
  > split1, keeping only the numbered lines
  > --
  > split2, keeping the lettered lines
  > EOF
  $ hg ci -m 'move and modify'
  $ printf 'y\nn\na\na\n' | hg split
  diff --git a/file b/file2
  rename from file
  rename to file2
  2 hunks, 4 lines changed
  examine changes to 'file' and 'file2'?
  (enter ? for help) [Ynesfdaq?] y
  
  @@ -0,0 +1,2 @@
  +a
  +b
  record change 1/2 to 'file2'?
  (enter ? for help) [Ynesfdaq?] n
  
  @@ -2,0 +5,2 @@ 2
  +3
  +4
  record change 2/2 to 'file2'?
  (enter ? for help) [Ynesfdaq?] a
  
  EDITOR: HG: Splitting 8c42fa635116. Write commit message for the first split changeset.
  EDITOR: move and modify
  EDITOR: 
  EDITOR: 
  EDITOR: HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  EDITOR: HG: Leave message empty to abort commit.
  EDITOR: HG: --
  EDITOR: HG: user: test
  EDITOR: HG: branch 'default'
  EDITOR: HG: added file2
  EDITOR: HG: removed file
  created new head
  diff --git a/file2 b/file2
  1 hunks, 2 lines changed
  examine changes to 'file2'?
  (enter ? for help) [Ynesfdaq?] a
  
  EDITOR: HG: Splitting 8c42fa635116. So far it has been split into:
  EDITOR: HG: - 478be2a70c27: split1, keeping only the numbered lines
  EDITOR: HG: Write commit message for the next split changeset.
  EDITOR: move and modify
  EDITOR: 
  EDITOR: 
  EDITOR: HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  EDITOR: HG: Leave message empty to abort commit.
  EDITOR: HG: --
  EDITOR: HG: user: test
  EDITOR: HG: branch 'default'
  EDITOR: HG: changed file2
  saved backup bundle to $TESTTMP/issue5723-mv/.hg/strip-backup/8c42fa635116-a38044d4-split.hg (obsstore-off !)
  $ hg log -T '{desc}: {files%"{file} "}\n'
  split2, keeping the lettered lines: file2 
  split1, keeping only the numbered lines: file file2 
  initial: file 
  $ cat file2
  a
  b
  1
  2
  3
  4
  $ hg cat -r ".^" file2
  1
  2
  3
  4
  $ hg cat -r . file2
  a
  b
  1
  2
  3
  4


Test that splitting copies works properly (issue5723)
----------------------------------------------------

  $ hg init $TESTTMP/issue5723-cp