tests/test-rebase-backup.t

nodemap: double check the source docket when doing incremental update

In theory, the index will have the information we expect it to have. However by
security, it seems safer to double check that the incremental data are generated
from the data currently on disk.

Differential Revision: https://phab.mercurial-scm.org/D7890

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > rebase=
  > EOF

==================================
Test backup-bundle config option |
==================================
Test with Pre-obsmarker rebase:
1) When config option is not set:
  $ hg init repo1
  $ cd repo1
  $ echo a>a
  $ hg ci -qAma
  $ echo b>b
  $ hg ci -qAmb
  $ echo c>c
  $ hg ci -qAmc
  $ hg up 0 -q
  $ echo d>d
  $ hg ci -qAmd
  $ echo e>e
  $ hg ci -qAme
  $ hg log -GT "{rev}: {firstline(desc)}\n"
  @  4: e
  |
  o  3: d
  |
  | o  2: c
  | |
  | o  1: b
  |/
  o  0: a
  
  $ hg rebase -s 1 -d .
  rebasing 1:d2ae7f538514 "b"
  rebasing 2:177f92b77385 "c"
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/d2ae7f538514-c7ed7a78-rebase.hg
  $ hg log -GT "{rev}: {firstline(desc)}\n"
  o  4: c
  |
  o  3: b
  |
  @  2: e
  |
  o  1: d
  |
  o  0: a
  

2) When config option is set:
  $ cat << EOF >> $HGRCPATH
  > [rewrite]
  > backup-bundle = False
  > EOF

  $ echo f>f
  $ hg ci -Aqmf
  $ echo g>g
  $ hg ci -Aqmg
  $ hg log -GT "{rev}: {firstline(desc)}\n"
  @  6: g
  |
  o  5: f
  |
  | o  4: c
  | |
  | o  3: b
  |/
  o  2: e
  |
  o  1: d
  |
  o  0: a
  
  $ hg rebase -s 3 -d .
  rebasing 3:05bff2a95b12 "b"
  rebasing 4:1762bde4404d "c"

  $ hg log -GT "{rev}: {firstline(desc)}\n"
  o  6: c
  |
  o  5: b
  |
  @  4: g
  |
  o  3: f
  |
  o  2: e
  |
  o  1: d
  |
  o  0: a
  
Test when rebased revisions are stripped during abort:
======================================================

  $ echo conflict > c
  $ hg ci -Am "conflict with c"
  adding c
  created new head
  $ hg log -GT "{rev}: {firstline(desc)}\n"
  @  7: conflict with c
  |
  | o  6: c
  | |
  | o  5: b
  |/
  o  4: g
  |
  o  3: f
  |
  o  2: e
  |
  o  1: d
  |
  o  0: a
  
When backup-bundle = True:
  $ cat << EOF >> $HGRCPATH
  > [rewrite]
  > backup-bundle = True
  > EOF
  $ hg rebase -s 5 -d .
  rebasing 5:1f8148a544ee "b"
  rebasing 6:f8bc7d28e573 "c"
  merging c
  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]
  $ hg rebase --abort
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/818c1a43c916-2b644d96-backup.hg
  rebase aborted

When backup-bundle = False:
  $ cat << EOF >> $HGRCPATH
  > [rewrite]
  > backup-bundle = False
  > EOF
  $ hg rebase -s 5 -d .
  rebasing 5:1f8148a544ee "b"
  rebasing 6:f8bc7d28e573 "c"
  merging c
  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]
  $ hg rebase --abort
  rebase aborted
  $ cd ..