view tests/test-revert-interactive.t @ 30195:88626de195f8

copies: make _checkcopies handle simple renames in a rotated DAG

This introduces a distinction between "merge base" and
"topological common ancestor". During a regular merge, these two are
identical. Graft, however, performs a merge in a rotated DAG, where the
merge base will not be a common ancestor at all in the
original DAG.

To correctly find copies in case of a graft, we need to take both the
merge base and the topological CA into account, and track any renames
between them in reverse. Fortunately we can detect this in advance,
see comment in the code about "backwards".

This patch only supports finding non-divergent renames contained entirely
between the merge base and the topological CA. Further patches are coming
to support more complex cases.

(Pierre-Yves David was involved in the cleanup of this patch.)

Revert interactive tests
1 add and commit file f
2 add commit file folder1/g
3 add and commit file folder2/h
4 add and commit file folder1/i
5 commit change to file f
6 commit changes to files folder1/g folder2/h
7 commit changes to files folder1/g folder2/h
8 revert interactive to commit id 2 (line 3 above), check that folder1/i is removed and
9 make workdir match 7
10 run the same test than 8 from within folder1 and check same expectations

  $ cat <<EOF >> $HGRCPATH
  > [ui]
  > interactive = true
  > [extensions]
  > record =
  > purge = 
  > EOF


  $ mkdir -p a/folder1 a/folder2
  $ cd a
  $ hg init
  >>> open('f', 'wb').write("1\n2\n3\n4\n5\n")
  $ hg add f ; hg commit -m "adding f"
  $ cat f > folder1/g ; hg add folder1/g ; hg commit -m "adding folder1/g"
  $ cat f > folder2/h ; hg add folder2/h ; hg commit -m "adding folder2/h"
  $ cat f > folder1/i ; hg add folder1/i ; hg commit -m "adding folder1/i"
  >>> open('f', 'wb').write("a\n1\n2\n3\n4\n5\nb\n")
  $ hg commit -m "modifying f"
  >>> open('folder1/g', 'wb').write("c\n1\n2\n3\n4\n5\nd\n")
  $ hg commit -m "modifying folder1/g"
  >>> open('folder2/h', 'wb').write("e\n1\n2\n3\n4\n5\nf\n")
  $ hg commit -m "modifying folder2/h"
  $ hg tip
  changeset:   6:59dd6e4ab63a
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     modifying folder2/h
  
  $ hg revert -i -r 2 --all -- << EOF
  > y
  > y
  > y
  > y
  > y
  > n
  > n
  > EOF
  reverting f
  reverting folder1/g (glob)
  removing folder1/i (glob)
  reverting folder2/h (glob)
  diff --git a/f b/f
  2 hunks, 2 lines changed
  examine changes to 'f'? [Ynesfdaq?] y
  
  @@ -1,5 +1,6 @@
  +a
   1
   2
   3
   4
   5
  revert change 1/6 to 'f'? [Ynesfdaq?] y
  
  @@ -1,5 +2,6 @@
   1
   2
   3
   4
   5
  +b
  revert change 2/6 to 'f'? [Ynesfdaq?] y
  
  diff --git a/folder1/g b/folder1/g
  2 hunks, 2 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -1,5 +1,6 @@
  +c
   1
   2
   3
   4
   5
  revert change 3/6 to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -1,5 +2,6 @@
   1
   2
   3
   4
   5
  +d
  revert change 4/6 to 'folder1/g'? [Ynesfdaq?] n
  
  diff --git a/folder2/h b/folder2/h
  2 hunks, 2 lines changed
  examine changes to 'folder2/h'? [Ynesfdaq?] n
  
  $ cat f
  1
  2
  3
  4
  5
  $ cat folder1/g
  1
  2
  3
  4
  5
  d
  $ cat folder2/h
  e
  1
  2
  3
  4
  5
  f

Test that --interactive lift the need for --all

  $ echo q | hg revert -i -r 2
  reverting folder1/g (glob)
  reverting folder2/h (glob)
  diff --git a/folder1/g b/folder1/g
  1 hunks, 1 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] q
  
  abort: user quit
  [255]
  $ ls folder1/
  g

Test that a noop revert doesn't do an unecessary backup
  $ (echo y; echo n) | hg revert -i -r 2 folder1/g
  diff --git a/folder1/g b/folder1/g
  1 hunks, 1 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -3,3 +3,4 @@
   3
   4
   5
  +d
  revert this change to 'folder1/g'? [Ynesfdaq?] n
  
  $ ls folder1/
  g

Test --no-backup
  $ (echo y; echo y) | hg revert -i -C -r 2 folder1/g
  diff --git a/folder1/g b/folder1/g
  1 hunks, 1 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -3,3 +3,4 @@
   3
   4
   5
  +d
  revert this change to 'folder1/g'? [Ynesfdaq?] y
  
  $ ls folder1/
  g
  >>> open('folder1/g', 'wb').write("1\n2\n3\n4\n5\nd\n")


  $ hg update -C 6
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg revert -i -r 2 --all -- << EOF
  > y
  > y
  > y
  > y
  > y
  > n
  > n
  > EOF
  reverting f
  reverting folder1/g (glob)
  removing folder1/i (glob)
  reverting folder2/h (glob)
  diff --git a/f b/f
  2 hunks, 2 lines changed
  examine changes to 'f'? [Ynesfdaq?] y
  
  @@ -1,5 +1,6 @@
  +a
   1
   2
   3
   4
   5
  revert change 1/6 to 'f'? [Ynesfdaq?] y
  
  @@ -1,5 +2,6 @@
   1
   2
   3
   4
   5
  +b
  revert change 2/6 to 'f'? [Ynesfdaq?] y
  
  diff --git a/folder1/g b/folder1/g
  2 hunks, 2 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -1,5 +1,6 @@
  +c
   1
   2
   3
   4
   5
  revert change 3/6 to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -1,5 +2,6 @@
   1
   2
   3
   4
   5
  +d
  revert change 4/6 to 'folder1/g'? [Ynesfdaq?] n
  
  diff --git a/folder2/h b/folder2/h
  2 hunks, 2 lines changed
  examine changes to 'folder2/h'? [Ynesfdaq?] n
  
  $ cat f
  1
  2
  3
  4
  5
  $ cat folder1/g
  1
  2
  3
  4
  5
  d
  $ cat folder2/h
  e
  1
  2
  3
  4
  5
  f
  $ hg st
  M f
  M folder1/g
  R folder1/i
  $ hg revert --interactive f << EOF
  > y
  > y
  > n
  > n
  > EOF
  diff --git a/f b/f
  2 hunks, 2 lines changed
  examine changes to 'f'? [Ynesfdaq?] y
  
  @@ -1,6 +1,5 @@
  -a
   1
   2
   3
   4
   5
  discard change 1/2 to 'f'? [Ynesfdaq?] y
  
  @@ -2,6 +1,5 @@
   1
   2
   3
   4
   5
  -b
  discard change 2/2 to 'f'? [Ynesfdaq?] n
  
  $ hg st
  M f
  M folder1/g
  R folder1/i
  ? f.orig
  $ cat f
  a
  1
  2
  3
  4
  5
  $ cat f.orig
  1
  2
  3
  4
  5
  $ rm f.orig
  $ hg update -C .
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

Check editing files newly added by a revert

1) Create a dummy editor changing 1 to 42
  $ cat > $TESTTMP/editor.sh << '__EOF__'
  > cat "$1"  | sed "s/1/42/g"  > tt
  > mv tt  "$1"
  > __EOF__

2) Add k
  $ printf "1\n" > k
  $ hg add k
  $ hg commit -m "add k"

3) Use interactive revert with editing (replacing +1 with +42):
  $ printf "0\n2\n" > k
  $ HGEDITOR="\"sh\" \"${TESTTMP}/editor.sh\"" hg revert -i  <<EOF
  > y
  > e
  > EOF
  reverting k
  diff --git a/k b/k
  1 hunks, 2 lines changed
  examine changes to 'k'? [Ynesfdaq?] y
  
  @@ -1,1 +1,2 @@
  -1
  +0
  +2
  discard this change to 'k'? [Ynesfdaq?] e
  
  $ cat k
  42

Check the experimental config to invert the selection:
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > revertalternateinteractivemode=False
  > EOF


  $ hg up -C .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ printf 'firstline\nc\n1\n2\n3\n 3\n5\nd\nlastline\n' > folder1/g
  $ hg diff --nodates
  diff -r a3d963a027aa folder1/g
  --- a/folder1/g
  +++ b/folder1/g
  @@ -1,7 +1,9 @@
  +firstline
   c
   1
   2
   3
  -4
  + 3
   5
   d
  +lastline
  $ hg revert -i <<EOF
  > y
  > y
  > y
  > n
  > EOF
  reverting folder1/g (glob)
  diff --git a/folder1/g b/folder1/g
  3 hunks, 3 lines changed
  examine changes to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -1,5 +1,4 @@
  -firstline
   c
   1
   2
   3
  discard change 1/3 to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -2,7 +1,7 @@
   c
   1
   2
   3
  - 3
  +4
   5
   d
  discard change 2/3 to 'folder1/g'? [Ynesfdaq?] y
  
  @@ -7,3 +6,2 @@
   5
   d
  -lastline
  discard change 3/3 to 'folder1/g'? [Ynesfdaq?] n
  
  $ hg diff --nodates
  diff -r a3d963a027aa folder1/g
  --- a/folder1/g
  +++ b/folder1/g
  @@ -5,3 +5,4 @@
   4
   5
   d
  +lastline

  $ hg update -C .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg purge
  $ touch newfile
  $ hg add newfile
  $ hg status
  A newfile
  $ hg revert -i <<EOF
  > n
  > EOF
  forgetting newfile
  forget added file newfile (yn)? n
  $ hg status
  A newfile
  $ hg revert -i <<EOF
  > y
  > EOF
  forgetting newfile
  forget added file newfile (yn)? y
  $ hg status
  ? newfile