view tests/test-amend.t @ 44363:f7459da77f23

nodemap: introduce an option to use mmap to read the nodemap mapping The performance and memory benefit is much greater if we don't have to copy all the data in memory for each information. So we introduce an option (on by default) to read the data using mmap. This changeset is the last one definition the API for index support nodemap data. (they have to be able to use the mmaping). Below are some benchmark comparing the best we currently have in 5.3 with the final step of this series (using the persistent nodemap implementation in Rust). The benchmark run `hg perfindex` with various revset and the following variants: Before: * do not use the persistent nodemap * use the CPython implementation of the index for nodemap * use mmapping of the changelog index After: * use the MixedIndex Rust code, with the NodeTree object for nodemap access (still in review) * use the persistent nodemap data from disk * access the persistent nodemap data through mmap * use mmapping of the changelog index The persistent nodemap greatly speed up most operation on very large repositories. Some of the previously very fast lookup end up a bit slower because the persistent nodemap has to be setup. However the absolute slowdown is very small and won't matters in the big picture. Here are some numbers (in seconds) for the reference copy of mozilla-try: Revset Before After abs-change speedup -10000: 0.004622 0.005532 0.000910 × 0.83 -10: 0.000050 0.000132 0.000082 × 0.37 tip 0.000052 0.000085 0.000033 × 0.61 0 + (-10000:) 0.028222 0.005337 -0.022885 × 5.29 0 0.023521 0.000084 -0.023437 × 280.01 (-10000:) + 0 0.235539 0.005308 -0.230231 × 44.37 (-10:) + :9 0.232883 0.000180 -0.232703 ×1293.79 (-10000:) + (:99) 0.238735 0.005358 -0.233377 × 44.55 :99 + (-10000:) 0.317942 0.005593 -0.312349 × 56.84 :9 + (-10:) 0.313372 0.000179 -0.313193 ×1750.68 :9 0.316450 0.000143 -0.316307 ×2212.93 On smaller repositories, the cost of nodemap related operation is not as big, so the win is much more modest. Yet it helps shaving a handful of millisecond here and there. Here are some numbers (in seconds) for the reference copy of mercurial: Revset Before After abs-change speedup -10: 0.000065 0.000097 0.000032 × 0.67 tip 0.000063 0.000078 0.000015 × 0.80 0 0.000561 0.000079 -0.000482 × 7.10 -10000: 0.004609 0.003648 -0.000961 × 1.26 0 + (-10000:) 0.005023 0.003715 -0.001307 × 1.35 (-10:) + :9 0.002187 0.000108 -0.002079 ×20.25 (-10000:) + 0 0.006252 0.003716 -0.002536 × 1.68 (-10000:) + (:99) 0.006367 0.003707 -0.002660 × 1.71 :9 + (-10:) 0.003846 0.000110 -0.003736 ×34.96 :9 0.003854 0.000099 -0.003755 ×38.92 :99 + (-10000:) 0.007644 0.003778 -0.003866 × 2.02 Differential Revision: https://phab.mercurial-scm.org/D7894
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 11 Feb 2020 11:18:52 +0100
parents 141ceec06b55
children 1813f79017ac
line wrap: on
line source

#testcases obsstore-off obsstore-on

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > amend=
  > debugdrawdag=$TESTDIR/drawdag.py
  > [diff]
  > git=1
  > EOF

#if obsstore-on
  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > evolution.createmarkers=True
  > EOF
#endif

Basic amend

  $ hg init repo1
  $ cd repo1
  $ hg debugdrawdag <<'EOS'
  > B
  > |
  > A
  > EOS

  $ hg update B -q
  $ echo 2 >> B

  $ hg amend
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/112478962961-7e959a55-amend.hg (obsstore-off !)
#if obsstore-off
  $ hg log -p -G --hidden -T '{rev} {node|short} {desc}\n'
  @  1 be169c7e8dbe B
  |  diff --git a/B b/B
  |  new file mode 100644
  |  --- /dev/null
  |  +++ b/B
  |  @@ -0,0 +1,1 @@
  |  +B2
  |
  o  0 426bada5c675 A
     diff --git a/A b/A
     new file mode 100644
     --- /dev/null
     +++ b/A
     @@ -0,0 +1,1 @@
     +A
     \ No newline at end of file
  
#else
  $ hg log -p -G --hidden -T '{rev} {node|short} {desc}\n'
  @  2 be169c7e8dbe B
  |  diff --git a/B b/B
  |  new file mode 100644
  |  --- /dev/null
  |  +++ b/B
  |  @@ -0,0 +1,1 @@
  |  +B2
  |
  | x  1 112478962961 B
  |/   diff --git a/B b/B
  |    new file mode 100644
  |    --- /dev/null
  |    +++ b/B
  |    @@ -0,0 +1,1 @@
  |    +B
  |    \ No newline at end of file
  |
  o  0 426bada5c675 A
     diff --git a/A b/A
     new file mode 100644
     --- /dev/null
     +++ b/A
     @@ -0,0 +1,1 @@
     +A
     \ No newline at end of file
  
#endif

Nothing changed

  $ hg amend
  nothing changed
  [1]

  $ hg amend -d "0 0"
  nothing changed
  [1]

  $ hg amend -d "Thu Jan 01 00:00:00 1970 UTC"
  nothing changed
  [1]

Matcher and metadata options

  $ echo 3 > C
  $ echo 4 > D
  $ hg add C D
  $ hg amend -m NEWMESSAGE -I C
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/be169c7e8dbe-7684ddc5-amend.hg (obsstore-off !)
  $ hg log -r . -T '{node|short} {desc} {files}\n'
  c7ba14d9075b NEWMESSAGE B C
  $ echo 5 > E
  $ rm C
  $ hg amend -d '2000 1000' -u 'Foo <foo@example.com>' -A C D
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/c7ba14d9075b-b3e76daa-amend.hg (obsstore-off !)
  $ hg log -r . -T '{node|short} {desc} {files} {author} {date}\n'
  14f6c4bcc865 NEWMESSAGE B D Foo <foo@example.com> 2000.01000

Amend with editor

  $ cat > $TESTTMP/prefix.sh <<'EOF'
  > printf 'EDITED: ' > $TESTTMP/msg
  > cat "$1" >> $TESTTMP/msg
  > mv $TESTTMP/msg "$1"
  > EOF
  $ chmod +x $TESTTMP/prefix.sh

  $ HGEDITOR="sh $TESTTMP/prefix.sh" hg amend --edit
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/14f6c4bcc865-6591f15d-amend.hg (obsstore-off !)
  $ hg log -r . -T '{node|short} {desc}\n'
  298f085230c3 EDITED: NEWMESSAGE
  $ HGEDITOR="sh $TESTTMP/prefix.sh" hg amend -e -m MSG
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/298f085230c3-d81a6ad3-amend.hg (obsstore-off !)
  $ hg log -r . -T '{node|short} {desc}\n'
  974f07f28537 EDITED: MSG

  $ echo FOO > $TESTTMP/msg
  $ hg amend -l $TESTTMP/msg -m BAR
  abort: cannot specify both --message and --logfile
  [255]
  $ hg amend -l $TESTTMP/msg
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/974f07f28537-edb6470a-amend.hg (obsstore-off !)
  $ hg log -r . -T '{node|short} {desc}\n'
  507be9bdac71 FOO

Interactive mode

  $ touch F G
  $ hg add F G
  $ cat <<EOS | hg amend -i --config ui.interactive=1
  > y
  > n
  > EOS
  diff --git a/F b/F
  new file mode 100644
  examine changes to 'F'?
  (enter ? for help) [Ynesfdaq?] y
  
  diff --git a/G b/G
  new file mode 100644
  examine changes to 'G'?
  (enter ? for help) [Ynesfdaq?] n
  
  saved backup bundle to $TESTTMP/repo1/.hg/strip-backup/507be9bdac71-c8077452-amend.hg (obsstore-off !)
  $ hg log -r . -T '{files}\n'
  B D F

Amend in the middle of a stack

  $ hg init $TESTTMP/repo2
  $ cd $TESTTMP/repo2
  $ hg debugdrawdag <<'EOS'
  > C
  > |
  > B
  > |
  > A
  > EOS

  $ hg update -q B
  $ echo 2 >> B
  $ hg amend
  abort: cannot amend changeset with children
  [255]

#if obsstore-on

With allowunstable, amend could work in the middle of a stack

  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution.createmarkers=True
  > evolution.allowunstable=True
  > EOF

  $ hg amend
  1 new orphan changesets
  $ hg log -T '{rev} {node|short} {desc}\n' -G
  @  3 be169c7e8dbe B
  |
  | *  2 26805aba1e60 C
  | |
  | x  1 112478962961 B
  |/
  o  0 426bada5c675 A
  
Checking the note stored in the obsmarker

  $ echo foo > bar
  $ hg add bar
  $ hg amend --note 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'
  abort: cannot store a note of more than 255 bytes
  [255]
  $ hg amend --note "adding bar"
  $ hg debugobsolete -r .
  112478962961147124edd43549aedd1a335e44bf be169c7e8dbe21cd10b3d79691cbe7f241e3c21c 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'amend', 'user': 'test'}
  be169c7e8dbe21cd10b3d79691cbe7f241e3c21c 16084da537dd8f84cfdb3055c633772269d62e1b 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'note': 'adding bar', 'operation': 'amend', 'user': 'test'}
#endif

Cannot amend public changeset

  $ hg phase -r A --public
  $ hg update -C -q A
  $ hg amend -m AMEND
  abort: cannot amend public changesets
  (see 'hg help phases' for details)
  [255]

Amend a merge changeset

  $ hg init $TESTTMP/repo3
  $ cd $TESTTMP/repo3
  $ hg debugdrawdag <<'EOS'
  >   C
  >  /|
  > A B
  > EOS
  $ hg update -q C
  $ hg amend -m FOO
  saved backup bundle to $TESTTMP/repo3/.hg/strip-backup/a35c07e8a2a4-15ff4612-amend.hg (obsstore-off !)
  $ rm .hg/localtags
  $ hg log -G -T '{desc}\n'
  @    FOO
  |\
  | o  B
  |
  o  A
  

More complete test for status changes (issue5732)
-------------------------------------------------

Generates history of files having 3 states, r0_r1_wc:

 r0: ground (content/missing)
 r1: old state to be amended (content/missing, where missing means removed)
 wc: changes to be included in r1 (content/missing-tracked/untracked)

  $ hg init $TESTTMP/wcstates
  $ cd $TESTTMP/wcstates

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 1
  $ hg addremove -q --similarity 0
  $ hg commit -m0

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 2
  $ hg addremove -q --similarity 0
  $ hg commit -m1

  $ "$PYTHON" $TESTDIR/generate-working-copy-states.py state 2 wc
  $ hg addremove -q --similarity 0
  $ hg forget *_*_*-untracked
  $ rm *_*_missing-*

amend r1 to include wc changes

  $ hg amend
  saved backup bundle to * (glob) (obsstore-off !)

clean/modified/removed/added states of the amended revision

  $ hg status --all --change . 'glob:content1_*_content1-tracked'
  C content1_content1_content1-tracked
  C content1_content2_content1-tracked
  C content1_missing_content1-tracked
  $ hg status --all --change . 'glob:content1_*_content[23]-tracked'
  M content1_content1_content3-tracked
  M content1_content2_content2-tracked
  M content1_content2_content3-tracked
  M content1_missing_content3-tracked
  $ hg status --all --change . 'glob:content1_*_missing-tracked'
  M content1_content2_missing-tracked
  R content1_missing_missing-tracked
  C content1_content1_missing-tracked
  $ hg status --all --change . 'glob:content1_*_*-untracked'
  R content1_content1_content1-untracked
  R content1_content1_content3-untracked
  R content1_content1_missing-untracked
  R content1_content2_content1-untracked
  R content1_content2_content2-untracked
  R content1_content2_content3-untracked
  R content1_content2_missing-untracked
  R content1_missing_content1-untracked
  R content1_missing_content3-untracked
  R content1_missing_missing-untracked
  $ hg status --all --change . 'glob:missing_content2_*'
  A missing_content2_content2-tracked
  A missing_content2_content3-tracked
  A missing_content2_missing-tracked
  $ hg status --all --change . 'glob:missing_missing_*'
  A missing_missing_content3-tracked

working directory should be all clean (with some missing/untracked files)

  $ hg status --all 'glob:*_content?-tracked'
  C content1_content1_content1-tracked
  C content1_content1_content3-tracked
  C content1_content2_content1-tracked
  C content1_content2_content2-tracked
  C content1_content2_content3-tracked
  C content1_missing_content1-tracked
  C content1_missing_content3-tracked
  C missing_content2_content2-tracked
  C missing_content2_content3-tracked
  C missing_missing_content3-tracked
  $ hg status --all 'glob:*_missing-tracked'
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked
  $ hg status --all 'glob:*-untracked'
  ? content1_content1_content1-untracked
  ? content1_content1_content3-untracked
  ? content1_content2_content1-untracked
  ? content1_content2_content2-untracked
  ? content1_content2_content3-untracked
  ? content1_missing_content1-untracked
  ? content1_missing_content3-untracked
  ? missing_content2_content2-untracked
  ? missing_content2_content3-untracked
  ? missing_missing_content3-untracked

=================================
Test backup-bundle config option|
=================================
  $ hg init $TESTTMP/repo4
  $ cd $TESTTMP/repo4
  $ echo a>a
  $ hg ci -Aqma
  $ echo oops>b
  $ hg ci -Aqm "b"
  $ echo partiallyfixed > b

#if obsstore-off
  $ hg amend
  saved backup bundle to $TESTTMP/repo4/.hg/strip-backup/95e899acf2ce-f11cb050-amend.hg
When backup-bundle config option is set:
  $ cat << EOF >> $HGRCPATH
  > [rewrite]
  > backup-bundle = False
  > EOF
  $ echo fixed > b
  $ hg amend

#else
  $ hg amend
When backup-bundle config option is set:
  $ cat << EOF >> $HGRCPATH
  > [rewrite]
  > backup-bundle = False
  > EOF
  $ echo fixed > b
  $ hg amend

#endif
==========================================
Test update-timestamp config option|
==========================================

  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > amend=
  > mockmakedate = $TESTDIR/mockmakedate.py
  > EOF

  $ hg init $TESTTMP/repo5
  $ cd $TESTTMP/repo5
  $ cat <<'EOF' >> .hg/hgrc
  > [ui]
  > logtemplate = 'user:        {user}
  >                date:        {date|date}
  >                summary:     {desc|firstline}\n'
  > EOF

  $ echo a>a
  $ hg ci -Am 'commit 1'
  adding a

When updatetimestamp is False

  $ hg amend --date '1997-1-1 0:1'
  $ hg log --limit 1
  user:        test
  date:        Wed Jan 01 00:01:00 1997 +0000
  summary:     commit 1

 When update-timestamp is True and no other change than the date

  $ hg amend --config rewrite.update-timestamp=True
  nothing changed
  [1]
  $ hg log --limit 1
  user:        test
  date:        Wed Jan 01 00:01:00 1997 +0000
  summary:     commit 1

When update-timestamp is True and there is other change than the date
  $ hg amend --user foobar --config rewrite.update-timestamp=True
  $ hg log --limit 1
  user:        foobar
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     commit 1

When date option is applicable and update-timestamp is True
  $ hg amend  --date '1998-1-1 0:1' --config rewrite.update-timestamp=True
  $ hg log --limit 1
  user:        foobar
  date:        Thu Jan 01 00:01:00 1998 +0000
  summary:     commit 1

Unlike rewrite.update-timestamp, -D/--currentdate always updates the timestamp

  $ hg amend -D
  $ hg log --limit 1
  user:        foobar
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     commit 1

  $ hg amend -D --config rewrite.update-timestamp=True
  $ hg log --limit 1
  user:        foobar
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     commit 1

rewrite.update-timestamp can be negated by --no-currentdate

  $ hg amend --config rewrite.update-timestamp=True --no-currentdate -u baz
  $ hg log --limit 1
  user:        baz
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     commit 1

Bad combination of date options:

  $ hg amend -D --date '0 0'
  abort: cannot specify both --date and --currentdate
  [255]

Close branch

  $ hg amend --secret --close-branch
  $ hg log --limit 1 -T 'close={get(extras, "close")}\nphase={phase}\n'
  close=1
  phase=secret

  $ cd ..

Corner case of amend from issue6157:
- working copy parent has a change to file `a`
- working copy has the inverse change
- we amend the working copy parent for files other than `a`
hg used to include the changes to `a` anyway.

  $ hg init 6157; cd 6157
  $ echo a > a; echo b > b; hg commit -qAm_
  $ echo a2 > a; hg commit -qm_
  $ hg diff --stat -c .
   a |  2 +-
   1 files changed, 1 insertions(+), 1 deletions(-)
  $ echo a > a; echo b2 > b; hg amend -q b
  $ hg diff --stat -c .
   a |  2 +-
   b |  2 +-
   2 files changed, 2 insertions(+), 2 deletions(-)

Modifying a file while the editor is open can cause dirstate corruption
(issue6233)

  $ cd $TESTTMP
  $ hg init modify-during-amend; cd modify-during-amend
  $ echo r0 > foo; hg commit -qAm "r0"
  $ echo alpha > foo; hg commit -qm "alpha"
  $ echo beta >> foo
  $ cat > $TESTTMP/touchy_editor.sh <<EOF
  > sleep 1
  > echo delta >> $TESTTMP/modify-during-amend/foo
  > sleep 1
  > echo hi > "\$1"
  > sleep 1
  > EOF
  $ HGEDITOR="sh $TESTTMP/touchy_editor.sh" hg commit --amend
  $ if (hg diff -c . | grep 'delta' >/dev/null) || [ -n "$(hg status)" ]; then
  >   echo "OK."
  > else
  >   echo "Bug detected. 'delta' is not part of the commit OR the wdir"
  >   echo "Diff and status before rebuild:"
  >   hg diff
  >   hg status
  >   hg debugrebuilddirstate
  >   echo "Diff and status after rebuild:"
  >   hg diff
  >   hg status
  > fi
  OK.