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diff tests/test-record.t @ 16324:46b991a1f428

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record: allow splitting of hunks by manually editing patches It is possible that unrelated changes in a file are on sequential lines. The current record extension does not allow these to be committed independently. An example use case for this is in software development for deeply embedded real-time systems. In these environments, it is not always possible to use a debugger (due to time-constraints) and hence inline UART-based printing is often used. When fixing a bug in a module, it is often convenient to add a large number of 'printf's (linked to the UART via a custom fputc) to the module in order to work out what is going wrong. printf is a very slow function (and also variadic so somewhat frowned upon by the MISRA standard) and hence it is highly undesirable to commit these lines to the repository. If only a partial fix is implemented, however, it is desirable to commit the fix without deleting all of the printf lines. This is also simplifies removal of the printf lines as once the final fix is committed, 'hg revert' does the rest. It is likely that the printf lines will be very near the actual fix, so being able to split the hunk is very useful in this case. There were two alternatives I considered for the user interface. One was to manually edit the patch, the other to allow a hunk to be split into individual lines for consideration. The latter option would require a significant refactor of the record module and is less flexible. While the former is potentially more complicated to use, this is a feature that is likely to only be used in certain exceptional cases (such as the use case proposed above) and hence I felt that the complexity would not be a considerable issue. I've also written a follow-up patch that refactors the 'prompt' code to base everything on the choices variable. This tidies up and clarifies the code a bit (removes constructs like 'if ret == 7' and removes the 'e' option from the file scope options as it's not relevant there. It's not really a necessity, so I've excluded it from this submission for now, but I can send it separately if there's a desire and it's on bitbucket (see below) in the meantime. Possible future improvements include: * Tidying up the 'prompt' code to base everything on the choices variable. This would allow entries to be removed from the prompt as currently 'e' is offered even for entire file patches, which is currently unsupported. * Allowing the entire file (or even multi-file) patch to be edited manually: this would require quite a large refactor without much benefit, so I decided to exclude it from the initial submission. * Allow the option to retry if a patch fails to apply (this is what Git does). This would require quite a bit of refactoring given the current 'hg record' implementation, so it's debatable whether it's worth it. Output is similar to existing record user interface except that an additional option ('e') exists to allow manual editing of the patch. This opens the user's configured editor with the patch. A comment is added to the bottom of the patch explaining what to do (based on Git's one). A large proportion of the changeset is test-case changes to update the options reported by record (Ynesfdaq? instead of Ynsfdaq?). Functional changes are in record.py and there are some new test cases in test-record.t.
author A. S. Budden <abudden@gmail.com>
date Fri, 30 Mar 2012 22:08:46 +0100
parents fc8c7a5ccc4a
children d388c3fc8319
line wrap: on
line diff
--- a/tests/test-record.t	Fri Mar 30 14:35:06 2012 -0500
+++ b/tests/test-record.t	Fri Mar 30 22:08:46 2012 +0100
@@ -20,7 +20,7 @@
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
-  examine changes to 'empty-rw'? [Ynsfdaq?] 
+  examine changes to 'empty-rw'? [Ynesfdaq?] 
   no changes to record
 
   $ hg tip -p
@@ -39,7 +39,7 @@
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
-  examine changes to 'empty-rw'? [Ynsfdaq?] 
+  examine changes to 'empty-rw'? [Ynesfdaq?] 
   abort: empty commit message
   [255]
 
@@ -59,7 +59,7 @@
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
-  examine changes to 'empty-rw'? [Ynsfdaq?] 
+  examine changes to 'empty-rw'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   0:c0708cf4e46e
@@ -88,7 +88,7 @@
   diff --git a/empty-rw b/empty-rename
   rename from empty-rw
   rename to empty-rename
-  examine changes to 'empty-rw' and 'empty-rename'? [Ynsfdaq?] 
+  examine changes to 'empty-rw' and 'empty-rename'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   1:d695e8dcb197
@@ -108,7 +108,7 @@
   diff --git a/empty-rename b/empty-copy
   copy from empty-rename
   copy to empty-copy
-  examine changes to 'empty-rename' and 'empty-copy'? [Ynsfdaq?] 
+  examine changes to 'empty-rename' and 'empty-copy'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   2:1d4b90bea524
@@ -127,7 +127,7 @@
   > EOF
   diff --git a/empty-copy b/empty-copy
   deleted file mode 100644
-  examine changes to 'empty-copy'? [Ynsfdaq?] 
+  examine changes to 'empty-copy'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   3:b39a238f01a1
@@ -149,7 +149,7 @@
   diff --git a/tip.bundle b/tip.bundle
   new file mode 100644
   this is a binary file
-  examine changes to 'tip.bundle'? [Ynsfdaq?] 
+  examine changes to 'tip.bundle'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   4:ad816da3711e
@@ -171,7 +171,7 @@
   > EOF
   diff --git a/tip.bundle b/tip.bundle
   this modifies a binary file (all or nothing)
-  examine changes to 'tip.bundle'? [Ynsfdaq?] 
+  examine changes to 'tip.bundle'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   5:dccd6f3eb485
@@ -196,7 +196,7 @@
   rename from tip.bundle
   rename to top.bundle
   this modifies a binary file (all or nothing)
-  examine changes to 'tip.bundle' and 'top.bundle'? [Ynsfdaq?] 
+  examine changes to 'tip.bundle' and 'top.bundle'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   6:7fa44105f5b3
@@ -224,7 +224,7 @@
   > EOF
   diff --git a/plain b/plain
   new file mode 100644
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   7:11fb457c1be4
@@ -258,13 +258,13 @@
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -8,3 +8,4 @@
    8
    9
    10
   +11
-  record this change to 'plain'? [Ynsfdaq?] 
+  record this change to 'plain'? [Ynesfdaq?] 
 
 Modify end of plain file, no EOL
 
@@ -275,14 +275,14 @@
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -9,3 +9,4 @@
    9
    10
    11
   +7264f99c5f5ff3261504828afa4fb4d406c3af54
   \ No newline at end of file
-  record this change to 'plain'? [Ynsfdaq?] 
+  record this change to 'plain'? [Ynesfdaq?] 
 
 Modify end of plain file, add EOL
 
@@ -296,7 +296,7 @@
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -9,4 +9,4 @@
    9
    10
@@ -304,10 +304,10 @@
   -7264f99c5f5ff3261504828afa4fb4d406c3af54
   \ No newline at end of file
   +7264f99c5f5ff3261504828afa4fb4d406c3af54
-  record change 1/2 to 'plain'? [Ynsfdaq?] 
+  record change 1/2 to 'plain'? [Ynesfdaq?] 
   diff --git a/plain2 b/plain2
   new file mode 100644
-  examine changes to 'plain2'? [Ynsfdaq?] 
+  examine changes to 'plain2'? [Ynesfdaq?] 
 
 Modify beginning, trim end, record both, add another file to test
 changes numbering
@@ -327,28 +327,28 @@
   > EOF
   diff --git a/plain b/plain
   2 hunks, 3 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -1,4 +1,4 @@
   -1
   +2
    2
    3
    4
-  record change 1/3 to 'plain'? [Ynsfdaq?] 
+  record change 1/3 to 'plain'? [Ynesfdaq?] 
   @@ -8,5 +8,3 @@
    8
    9
    10
   -11
   -7264f99c5f5ff3261504828afa4fb4d406c3af54
-  record change 2/3 to 'plain'? [Ynsfdaq?] 
+  record change 2/3 to 'plain'? [Ynesfdaq?] 
   diff --git a/plain2 b/plain2
   1 hunks, 1 lines changed
-  examine changes to 'plain2'? [Ynsfdaq?] 
+  examine changes to 'plain2'? [Ynesfdaq?] 
   @@ -1,1 +1,2 @@
    1
   +2
-  record change 3/3 to 'plain2'? [Ynsfdaq?] 
+  record change 3/3 to 'plain2'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   11:21df83db12b8
@@ -396,7 +396,7 @@
   > EOF
   diff --git a/plain b/plain
   2 hunks, 4 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -1,9 +1,6 @@
   -2
   -2
@@ -407,7 +407,7 @@
    7
    8
    9
-  record change 1/2 to 'plain'? [Ynsfdaq?] 
+  record change 1/2 to 'plain'? [Ynesfdaq?] 
   @@ -4,7 +1,7 @@
    4
    5
@@ -417,7 +417,7 @@
    9
   -10
   +10.new
-  record change 2/2 to 'plain'? [Ynsfdaq?] 
+  record change 2/2 to 'plain'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   12:99337501826f
@@ -445,7 +445,7 @@
   > EOF
   diff --git a/plain b/plain
   1 hunks, 3 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -1,6 +1,3 @@
   -2
   -2
@@ -453,7 +453,7 @@
    4
    5
    6
-  record this change to 'plain'? [Ynsfdaq?] 
+  record this change to 'plain'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   13:bbd45465d540
@@ -490,7 +490,7 @@
   > EOF
   diff --git a/plain b/plain
   2 hunks, 4 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -1,6 +1,9 @@
   +1
   +2
@@ -501,7 +501,7 @@
    7
    8
    9
-  record change 1/2 to 'plain'? [Ynsfdaq?] 
+  record change 1/2 to 'plain'? [Ynesfdaq?] 
   @@ -1,7 +4,6 @@
    4
    5
@@ -510,7 +510,7 @@
    8
    9
   -10.new
-  record change 2/2 to 'plain'? [Ynsfdaq?] 
+  record change 2/2 to 'plain'? [Ynesfdaq?] 
 
 Add to beginning, middle, end
 
@@ -529,14 +529,14 @@
   > EOF
   diff --git a/plain b/plain
   3 hunks, 7 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -1,2 +1,5 @@
   +1
   +2
   +3
    4
    5
-  record change 1/3 to 'plain'? [Ynsfdaq?] 
+  record change 1/3 to 'plain'? [Ynesfdaq?] 
   @@ -1,6 +4,8 @@
    4
    5
@@ -546,7 +546,7 @@
    7
    8
    9
-  record change 2/3 to 'plain'? [Ynsfdaq?] 
+  record change 2/3 to 'plain'? [Ynesfdaq?] 
   @@ -3,4 +8,6 @@
    6
    7
@@ -554,7 +554,7 @@
    9
   +10
   +11
-  record change 3/3 to 'plain'? [Ynsfdaq?] 
+  record change 3/3 to 'plain'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   15:f34a7937ec33
@@ -587,14 +587,14 @@
   > EOF
   diff --git a/plain b/plain
   1 hunks, 2 lines changed
-  examine changes to 'plain'? [Ynsfdaq?] 
+  examine changes to 'plain'? [Ynesfdaq?] 
   @@ -9,3 +9,5 @@
    7
    8
    9
   +10
   +11
-  record this change to 'plain'? [Ynsfdaq?] 
+  record this change to 'plain'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   16:f9900b71a04c
@@ -627,11 +627,11 @@
   > EOF
   diff --git a/subdir/a b/subdir/a
   1 hunks, 1 lines changed
-  examine changes to 'subdir/a'? [Ynsfdaq?] 
+  examine changes to 'subdir/a'? [Ynesfdaq?] 
   @@ -1,1 +1,2 @@
    a
   +a
-  record this change to 'subdir/a'? [Ynsfdaq?] 
+  record this change to 'subdir/a'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   18:61be427a9deb
@@ -665,16 +665,17 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   y - record this change
   n - skip this change
+  e - edit this change manually
   s - skip remaining changes to this file
   f - record remaining changes to this file
   d - done, skip remaining changes and files
   a - record all changes to all remaining files
   q - quit, recording no changes
   ? - display help
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   abort: user quit
   [255]
 
@@ -685,10 +686,10 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f2'? [Ynsfdaq?] abort: response expected
+  examine changes to 'subdir/f2'? [Ynesfdaq?] abort: response expected
   [255]
 
 No
@@ -698,10 +699,10 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f2'? [Ynsfdaq?] abort: response expected
+  examine changes to 'subdir/f2'? [Ynesfdaq?] abort: response expected
   [255]
 
 f, quit
@@ -712,10 +713,10 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f2'? [Ynsfdaq?] 
+  examine changes to 'subdir/f2'? [Ynesfdaq?] 
   abort: user quit
   [255]
 
@@ -727,10 +728,10 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f2'? [Ynsfdaq?] 
+  examine changes to 'subdir/f2'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   20:b3df3dda369a
@@ -754,7 +755,7 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
 
   $ hg tip -p
   changeset:   21:38ec577f126b
@@ -784,12 +785,12 @@
   old mode 100644
   new mode 100755
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   @@ -1,2 +1,3 @@
    a
    a
   +a
-  record this change to 'subdir/f1'? [Ynsfdaq?] 
+  record this change to 'subdir/f1'? [Ynesfdaq?] 
 
   $ hg tip --config diff.git=True -p
   changeset:   22:3261adceb075
@@ -819,13 +820,13 @@
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   @@ -1,3 +1,4 @@
    a
    a
    a
   +b
-  record this change to 'subdir/f1'? [Ynsfdaq?] 
+  record this change to 'subdir/f1'? [Ynesfdaq?] 
 
   $ hg tip --config diff.git=True -p
   changeset:   23:b429867550db
@@ -857,13 +858,13 @@
   old mode 100755
   new mode 100644
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   @@ -2,3 +2,4 @@
    a
    a
    b
   +c
-  record this change to 'subdir/f1'? [Ynsfdaq?] 
+  record this change to 'subdir/f1'? [Ynesfdaq?] 
 
   $ hg tip --config diff.git=True -p
   changeset:   24:0b082130c20a
@@ -914,6 +915,150 @@
   $ hg up -C
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
+Editing patch
+
+  $ cat > editor << '__EOF__'
+  > #!/bin/sh
+  > sed -i -e 7d -e '5s/^-/ /' "$1"
+  > __EOF__
+  $ chmod +x editor
+  $ cat > editedfile << '__EOF__'
+  > This is the first line
+  > This is the second line
+  > This is the third line
+  > __EOF__
+  $ hg add editedfile
+  $ hg commit -medit-patch-1
+  $ cat > editedfile << '__EOF__'
+  > This line has changed
+  > This change will be committed
+  > This is the third line
+  > __EOF__
+  $ HGEDITOR="'`pwd`'"/editor hg record -d '23 0' -medit-patch-2 <<EOF
+  > y
+  > e
+  > EOF
+  diff --git a/editedfile b/editedfile
+  1 hunks, 2 lines changed
+  examine changes to 'editedfile'? [Ynesfdaq?] 
+  @@ -1,3 +1,3 @@
+  -This is the first line
+  -This is the second line
+  +This line has changed
+  +This change will be committed
+   This is the third line
+  record this change to 'editedfile'? [Ynesfdaq?] 
+  $ cat editedfile
+  This line has changed
+  This change will be committed
+  This is the third line
+  $ hg cat -r tip editedfile
+  This is the first line
+  This change will be committed
+  This is the third line
+  $ hg revert editedfile
+
+Trying to edit patch for whole file
+
+  $ echo "This is the fourth line" >> editedfile
+  $ hg record <<EOF
+  > e
+  > q
+  > EOF
+  diff --git a/editedfile b/editedfile
+  1 hunks, 1 lines changed
+  examine changes to 'editedfile'? [Ynesfdaq?] 
+  cannot edit patch for whole file
+  examine changes to 'editedfile'? [Ynesfdaq?] 
+  abort: user quit
+  [255]
+  $ hg revert editedfile
+
+Removing changes from patch
+
+  $ sed -i -e '3s/third/second/' -e '2s/will/will not/' -e 1d editedfile
+  $ echo "This line has been added" >> editedfile
+  $ cat > editor << '__EOF__'
+  > #!/bin/sh
+  > sed -i -e 's/^[-+]/ /' "$1"
+  > __EOF__
+  $ chmod +x editor
+  $ HGEDITOR="'`pwd`'"/editor hg record <<EOF
+  > y
+  > e
+  > EOF
+  diff --git a/editedfile b/editedfile
+  1 hunks, 3 lines changed
+  examine changes to 'editedfile'? [Ynesfdaq?] 
+  @@ -1,3 +1,3 @@
+  -This is the first line
+  -This change will be committed
+  -This is the third line
+  +This change will not be committed
+  +This is the second line
+  +This line has been added
+  record this change to 'editedfile'? [Ynesfdaq?] 
+  no changes to record
+  $ cat editedfile
+  This change will not be committed
+  This is the second line
+  This line has been added
+  $ hg cat -r tip editedfile
+  This is the first line
+  This change will be committed
+  This is the third line
+  $ hg revert editedfile
+
+Invalid patch
+
+  $ sed -i -e '3s/third/second/' -e '2s/will/will not/' -e 1d editedfile
+  $ echo "This line has been added" >> editedfile
+  $ cat > editor << '__EOF__'
+  > #!/bin/sh
+  > sed -i s/This/That/ "$1"
+  > __EOF__
+  $ chmod +x editor
+  $ HGEDITOR="'`pwd`'"/editor hg record <<EOF
+  > y
+  > e
+  > EOF
+  diff --git a/editedfile b/editedfile
+  1 hunks, 3 lines changed
+  examine changes to 'editedfile'? [Ynesfdaq?] 
+  @@ -1,3 +1,3 @@
+  -This is the first line
+  -This change will be committed
+  -This is the third line
+  +This change will not be committed
+  +This is the second line
+  +This line has been added
+  record this change to 'editedfile'? [Ynesfdaq?] 
+  patching file editedfile
+  Hunk #1 FAILED at 0
+  1 out of 1 hunks FAILED -- saving rejects to file editedfile.rej
+  abort: patch failed to apply
+  [255]
+  $ cat editedfile
+  This change will not be committed
+  This is the second line
+  This line has been added
+  $ hg cat -r tip editedfile
+  This is the first line
+  This change will be committed
+  This is the third line
+  $ cat editedfile.rej
+  --- editedfile
+  +++ editedfile
+  @@ -1,3 +1,3 @@
+  -That is the first line
+  -That change will be committed
+  -That is the third line
+  +That change will not be committed
+  +That is the second line
+  +That line has been added
+  $ hg up -C
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+
 With win32text
 
   $ echo '[extensions]' >> .hg/hgrc
@@ -931,31 +1076,30 @@
   $ echo 'warn = no' >> .hg/hgrc
 
   $ echo d >> subdir/f1
-  $ hg record -d '23 0' -mw1 <<EOF
+  $ hg record -d '24 0' -mw1 <<EOF
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
-  examine changes to 'subdir/f1'? [Ynsfdaq?] 
+  examine changes to 'subdir/f1'? [Ynesfdaq?] 
   @@ -3,3 +3,4 @@
    a
    b
    c
   +d
-  record this change to 'subdir/f1'? [Ynsfdaq?] 
+  record this change to 'subdir/f1'? [Ynesfdaq?] 
 
   $ hg tip -p
-  changeset:   26:b8306e70edc4
+  changeset:   28:287ad1f41a72
   tag:         tip
-  parent:      24:0b082130c20a
   user:        test
-  date:        Thu Jan 01 00:00:23 1970 +0000
+  date:        Thu Jan 01 00:00:24 1970 +0000
   summary:     w1
   
-  diff -r 0b082130c20a -r b8306e70edc4 subdir/f1
-  --- a/subdir/f1	Thu Jan 01 00:00:22 1970 +0000
-  +++ b/subdir/f1	Thu Jan 01 00:00:23 1970 +0000
+  diff -r 65ce23a81197 -r 287ad1f41a72 subdir/f1
+  --- a/subdir/f1	Thu Jan 01 00:00:23 1970 +0000
+  +++ b/subdir/f1	Thu Jan 01 00:00:24 1970 +0000
   @@ -3,3 +3,4 @@
    a
    b