view tests/test-strip-cross.t @ 26228:0fd20a71abdb

extdiff: add a --patch argument for diffing changeset deltas

One of the things I missed the most when transitioning from versioned MQ to
evolve was the loss of being able to check that rebase conflicts were properly
resolved by:

  $ hg ci --mq -m "before"
  $ hg rebase -s qbase -d tip
  $ hg bcompare --mq

The old csets stay in the tree with evolve, but a straight diff includes all of
the other changes that were pulled in, obscuring the code that was rebased.
Diffing deltas can be confusing, but unless radical changes were made during the
resolve, it is very clear when individual hunks are added, dropped or modified.
Unlike the MQ technique, this can only compare a single pair of csets/patches at
a time.  Like the MQ method, this also highlights changes in the commit comment
and other metadata.

I originally tried monkey patching from the evolve extension, but that is too
complicated given that it depends on the order the two different extensions are
loaded.  This functionality is also useful when comparing grafts however, so
implementing it in the core is more than just convenience.

The --change argument doesn't make much sense for this, but it isn't harmful so
I didn't bother blocking it.  The -I/-X options are ignored because of a
limitation of cmdutil.export().  We'll fix that next.

test stripping of filelogs where the linkrev doesn't always increase

  $ echo '[extensions]' >> $HGRCPATH
  $ echo 'strip =' >> $HGRCPATH
  $ hg init orig
  $ cd orig
  $ commit()
  > {
  >     hg up -qC null
  >     count=1
  >     for i in "$@"; do
  >         for f in $i; do
  >             echo $count > $f
  >         done
  >         count=`expr $count + 1`
  >     done
  >     hg commit -qAm "$*"
  > }

2 1 0 2 0 1 2

  $ commit '201 210'
  $ commit '102 120' '210'
  $ commit '021'
  $ commit '201' '021 120'
  $ commit '012 021' '102 201' '120 210'
  $ commit 'manifest-file'
  $ commit '102 120' '012 210' '021 201'
  $ commit '201 210' '021 120' '012 102'
  $ HGUSER=another-user; export HGUSER
  $ commit 'manifest-file'
  $ commit '012' 'manifest-file'
  $ cd ..
  $ hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed
  $ cd crossed
  $ hg debugindex --manifest
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0     112  .....       0 6f105cbb914d 000000000000 000000000000 (re)
       1       112      56  .....       3 1b55917b3699 000000000000 000000000000 (re)
       2       168     123  .....       1 8f3d04e263e5 000000000000 000000000000 (re)
       3       291     122  .....       2 f0ef8726ac4f 000000000000 000000000000 (re)
       4       413      87  .....       4 0b76e38b4070 000000000000 000000000000 (re)

  $ for i in 012 021 102 120 201 210 manifest-file; do
  >     echo $i
  >     hg debugindex $i
  >     echo
  > done
  012
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       0 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       1 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       2 2661d26c6496 000000000000 000000000000 (re)
  
  021
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       0 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       2 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       1 2661d26c6496 000000000000 000000000000 (re)
  
  102
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       1 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       0 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       2 2661d26c6496 000000000000 000000000000 (re)
  
  120
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       1 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       2 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       0 2661d26c6496 000000000000 000000000000 (re)
  
  201
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       2 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       0 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       1 2661d26c6496 000000000000 000000000000 (re)
  
  210
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       2 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       1 5d9299349fc0 000000000000 000000000000 (re)
       2         6       3  .....       0 2661d26c6496 000000000000 000000000000 (re)
  
  manifest-file
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       3 b8e02f643373 000000000000 000000000000 (re)
       1         3       3  .....       4 5d9299349fc0 000000000000 000000000000 (re)
  
  $ cd ..
  $ for i in 0 1 2 3 4; do
  >     hg clone -q -U --pull crossed $i
  >     echo "% Trying to strip revision $i"
  >     hg --cwd $i strip $i
  >     echo "% Verifying"
  >     hg --cwd $i verify
  >     echo
  > done
  % Trying to strip revision 0
  saved backup bundle to $TESTTMP/0/.hg/strip-backup/*-backup.hg (glob)
  % Verifying
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  7 files, 4 changesets, 15 total revisions
  
  % Trying to strip revision 1
  saved backup bundle to $TESTTMP/1/.hg/strip-backup/*-backup.hg (glob)
  % Verifying
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  7 files, 4 changesets, 14 total revisions
  
  % Trying to strip revision 2
  saved backup bundle to $TESTTMP/2/.hg/strip-backup/*-backup.hg (glob)
  % Verifying
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  7 files, 4 changesets, 14 total revisions
  
  % Trying to strip revision 3
  saved backup bundle to $TESTTMP/3/.hg/strip-backup/*-backup.hg (glob)
  % Verifying
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  7 files, 4 changesets, 19 total revisions
  
  % Trying to strip revision 4
  saved backup bundle to $TESTTMP/4/.hg/strip-backup/*-backup.hg (glob)
  % Verifying
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  7 files, 4 changesets, 19 total revisions