tests/test-subrepo-git.t

performance: speedup computation of hidden revisions

In their current state, revset calls can be very costlys, as we
test predicates on the entire repository. The hidden filter is very
widely used, and needs to be very fast.

This change drops revset calls in favor of direct revision manipulation.

Performance test on my Mercurial checkout

- 19857 total changesets,
- 1584 obsolete changesets,
- 13310 obsolescence markers.

Before:
 ! hidden
 ! wall 0.077553

After this changes:
  ! hidden
  ! wall 0.011230

Performance test on a Mozilla central checkout:

- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.

Before:
  ! hidden
  ! wall 0.389472

After:
  ! hidden
  ! wall 0.000079

  $ "$TESTDIR/hghave" git || exit 80

make git commits repeatable

  $ echo "[core]" >> $HOME/.gitconfig
  $ echo "autocrlf = false" >> $HOME/.gitconfig
  $ GIT_AUTHOR_NAME='test'; export GIT_AUTHOR_NAME
  $ GIT_AUTHOR_EMAIL='[e-mail]'; export GIT_AUTHOR_EMAIL
  $ GIT_AUTHOR_DATE='1234567891 +0000'; export GIT_AUTHOR_DATE
  $ GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"; export GIT_COMMITTER_NAME
  $ GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"; export GIT_COMMITTER_EMAIL
  $ GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"; export GIT_COMMITTER_DATE

root hg repo

  $ hg init t
  $ cd t
  $ echo a > a
  $ hg add a
  $ hg commit -m a
  $ cd ..

new external git repo

  $ mkdir gitroot
  $ cd gitroot
  $ git init -q
  $ echo g > g
  $ git add g
  $ git commit -q -m g

add subrepo clone

  $ cd ../t
  $ echo 's = [git]../gitroot' > .hgsub
  $ git clone -q ../gitroot s
  $ hg add .hgsub
  $ hg commit -m 'new git subrepo'
  $ hg debugsub
  path s
   source   ../gitroot
   revision da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7

record a new commit from upstream from a different branch

  $ cd ../gitroot
  $ git checkout -q -b testing
  $ echo gg >> g
  $ git commit -q -a -m gg

  $ cd ../t/s
  $ git pull -q >/dev/null 2>/dev/null
  $ git checkout -q -b testing origin/testing >/dev/null

  $ cd ..
  $ hg status --subrepos
  M s/g
  $ hg commit -m 'update git subrepo'
  $ hg debugsub
  path s
   source   ../gitroot
   revision 126f2a14290cd5ce061fdedc430170e8d39e1c5a

make $GITROOT pushable, by replacing it with a clone with nothing checked out

  $ cd ..
  $ git clone gitroot gitrootbare --bare -q
  $ rm -rf gitroot
  $ mv gitrootbare gitroot

clone root

  $ cd t
  $ hg clone . ../tc
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ../tc
  $ hg debugsub
  path s
   source   ../gitroot
   revision 126f2a14290cd5ce061fdedc430170e8d39e1c5a

update to previous substate

  $ hg update 1 -q
  $ cat s/g
  g
  $ hg debugsub
  path s
   source   ../gitroot
   revision da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7

clone root, make local change

  $ cd ../t
  $ hg clone . ../ta
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd ../ta
  $ echo ggg >> s/g
  $ hg status --subrepos
  M s/g
  $ hg commit --subrepos -m ggg
  committing subrepository s
  $ hg debugsub
  path s
   source   ../gitroot
   revision 79695940086840c99328513acbe35f90fcd55e57

clone root separately, make different local change

  $ cd ../t
  $ hg clone . ../tb
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd ../tb/s
  $ echo f > f
  $ git add f
  $ cd ..

  $ hg status --subrepos
  A s/f
  $ hg commit --subrepos -m f
  committing subrepository s
  $ hg debugsub
  path s
   source   ../gitroot
   revision aa84837ccfbdfedcdcdeeedc309d73e6eb069edc

user b push changes

  $ hg push 2>/dev/null
  pushing to $TESTTMP/t (glob)
  pushing branch testing of subrepo s
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

user a pulls, merges, commits

  $ cd ../ta
  $ hg pull
  pulling from $TESTTMP/t (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg merge 2>/dev/null
  pulling subrepo s from $TESTTMP/gitroot
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat s/f
  f
  $ cat s/g
  g
  gg
  ggg
  $ hg commit --subrepos -m 'merge'
  committing subrepository s
  $ hg status --subrepos --rev 1:5
  M .hgsubstate
  M s/g
  A s/f
  $ hg debugsub
  path s
   source   ../gitroot
   revision f47b465e1bce645dbf37232a00574aa1546ca8d3
  $ hg push 2>/dev/null
  pushing to $TESTTMP/t (glob)
  pushing branch testing of subrepo s
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files

make upstream git changes

  $ cd ..
  $ git clone -q gitroot gitclone
  $ cd gitclone
  $ echo ff >> f
  $ git commit -q -a -m ff
  $ echo fff >> f
  $ git commit -q -a -m fff
  $ git push origin testing 2>/dev/null

make and push changes to hg without updating the subrepo

  $ cd ../t
  $ hg clone . ../td
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  checking out detached HEAD in subrepo s
  check out a git branch if you intend to make changes
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ../td
  $ echo aa >> a
  $ hg commit -m aa
  $ hg push
  pushing to $TESTTMP/t (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

sync to upstream git, distribute changes

  $ cd ../ta
  $ hg pull -u -q
  $ cd s
  $ git pull -q >/dev/null 2>/dev/null
  $ cd ..
  $ hg commit -m 'git upstream sync'
  $ hg debugsub
  path s
   source   ../gitroot
   revision 32a343883b74769118bb1d3b4b1fbf9156f4dddc
  $ hg push -q

  $ cd ../tb
  $ hg pull -q
  $ hg update 2>/dev/null
  pulling subrepo s from $TESTTMP/gitroot
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg debugsub
  path s
   source   ../gitroot
   revision 32a343883b74769118bb1d3b4b1fbf9156f4dddc

update to a revision without the subrepo, keeping the local git repository

  $ cd ../t
  $ hg up 0
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ ls -a s
  .
  ..
  .git

  $ hg up 2
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ ls -a s
  .
  ..
  .git
  g

archive subrepos

  $ cd ../tc
  $ hg pull -q
  $ hg archive --subrepos -r 5 ../archive 2>/dev/null
  pulling subrepo s from $TESTTMP/gitroot
  $ cd ../archive
  $ cat s/f
  f
  $ cat s/g
  g
  gg
  ggg

  $ hg -R ../tc archive --subrepo -r 5 -X ../tc/**f ../archive_x 2>/dev/null
  $ find ../archive_x | sort | grep -v pax_global_header
  ../archive_x
  ../archive_x/.hg_archival.txt
  ../archive_x/.hgsub
  ../archive_x/.hgsubstate
  ../archive_x/a
  ../archive_x/s
  ../archive_x/s/g

create nested repo

  $ cd ..
  $ hg init outer
  $ cd outer
  $ echo b>b
  $ hg add b
  $ hg commit -m b

  $ hg clone ../t inner
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo inner = inner > .hgsub
  $ hg add .hgsub
  $ hg commit -m 'nested sub'

nested commit

  $ echo ffff >> inner/s/f
  $ hg status --subrepos
  M inner/s/f
  $ hg commit --subrepos -m nested
  committing subrepository inner
  committing subrepository inner/s (glob)

nested archive

  $ hg archive --subrepos ../narchive
  $ ls ../narchive/inner/s | grep -v pax_global_header
  f
  g

relative source expansion

  $ cd ..
  $ mkdir d
  $ hg clone t d/t
  updating to branch default
  cloning subrepo s from $TESTTMP/gitroot
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

Don't crash if the subrepo is missing

  $ hg clone t missing -q
  $ cd missing
  $ rm -rf s
  $ hg status -S
  $ hg sum | grep commit
  commit: 1 subrepos
  $ hg push -q
  abort: subrepo s is missing (in subrepo s)
  [255]
  $ hg commit --subrepos -qm missing
  abort: subrepo s is missing (in subrepo s)
  [255]
  $ hg update -C
  cloning subrepo s from $TESTTMP/gitroot
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg sum | grep commit
  commit: (clean)

Don't crash if the .hgsubstate entry is missing

  $ hg update 1 -q
  $ hg rm .hgsubstate
  $ hg commit .hgsubstate -m 'no substate'
  nothing changed
  [1]
  $ hg tag -l nosubstate
  $ hg manifest
  .hgsub
  .hgsubstate
  a

  $ hg status -S
  R .hgsubstate
  $ hg sum | grep commit
  commit: 1 removed, 1 subrepos (new branch head)

  $ hg commit -m 'restore substate'
  nothing changed
  [1]
  $ hg manifest
  .hgsub
  .hgsubstate
  a
  $ hg sum | grep commit
  commit: 1 removed, 1 subrepos (new branch head)

  $ hg update -qC nosubstate
  $ ls s
  g

issue3109: false positives in git diff-index

  $ hg update -q
  $ touch -t 200001010000 s/g
  $ hg status --subrepos
  $ touch -t 200001010000 s/g
  $ hg sum | grep commit
  commit: (clean)

Check hg update --clean
  $ cd $TESTTMP/ta
  $ echo  > s/g
  $ cd s
  $ echo c1 > f1
  $ echo c1 > f2
  $ git add f1
  $ cd ..
  $ hg status -S
  M s/g
  A s/f1
  $ ls s
  f
  f1
  f2
  g
  $ hg update --clean
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg status -S
  $ ls s
  f
  f1
  f2
  g

Sticky subrepositories, no changes
  $ cd $TESTTMP/ta
  $ hg id -n
  7
  $ cd s
  $ git rev-parse HEAD
  32a343883b74769118bb1d3b4b1fbf9156f4dddc
  $ cd ..
  $ hg update 1 > /dev/null 2>&1
  $ hg id -n
  1
  $ cd s
  $ git rev-parse HEAD
  da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
  $ cd ..

Sticky subrepositorys, file changes
  $ touch s/f1
  $ cd s
  $ git add f1
  $ cd ..
  $ hg id -n
  1+
  $ cd s
  $ git rev-parse HEAD
  da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
  $ cd ..
  $ hg update 4
   subrepository sources for s differ
  use (l)ocal source (da5f5b1) or (r)emote source (aa84837)?
   l
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  4+
  $ cd s
  $ git rev-parse HEAD
  da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
  $ cd ..
  $ hg update --clean tip > /dev/null 2>&1

Sticky subrepository, revision updates
  $ hg id -n
  7
  $ cd s
  $ git rev-parse HEAD
  32a343883b74769118bb1d3b4b1fbf9156f4dddc
  $ cd ..
  $ cd s
  $ git checkout aa84837ccfbdfedcdcdeeedc309d73e6eb069edc
  Previous HEAD position was 32a3438... fff
  HEAD is now at aa84837... f
  $ cd ..
  $ hg update 1
   subrepository sources for s differ (in checked out version)
  use (l)ocal source (32a3438) or (r)emote source (da5f5b1)?
   l
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  1+
  $ cd s
  $ git rev-parse HEAD
  aa84837ccfbdfedcdcdeeedc309d73e6eb069edc
  $ cd ..

Sticky subrepository, file changes and revision updates
  $ touch s/f1
  $ cd s
  $ git add f1
  $ git rev-parse HEAD
  aa84837ccfbdfedcdcdeeedc309d73e6eb069edc
  $ cd ..
  $ hg id -n
  1+
  $ hg update 7
   subrepository sources for s differ
  use (l)ocal source (32a3438) or (r)emote source (32a3438)?
   l
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  7+
  $ cd s
  $ git rev-parse HEAD
  aa84837ccfbdfedcdcdeeedc309d73e6eb069edc
  $ cd ..

Sticky repository, update --clean
  $ hg update --clean tip 2>/dev/null
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  7
  $ cd s
  $ git rev-parse HEAD
  32a343883b74769118bb1d3b4b1fbf9156f4dddc
  $ cd ..

Test subrepo already at intended revision:
  $ cd s
  $ git checkout 32a343883b74769118bb1d3b4b1fbf9156f4dddc
  HEAD is now at 32a3438... fff
  $ cd ..
  $ hg update 1
  Previous HEAD position was 32a3438... fff
  HEAD is now at da5f5b1... g
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  1
  $ cd s
  $ git rev-parse HEAD
  da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
  $ cd ..

Test forgetting files, not implemented in git subrepo, used to
traceback
#if no-windows
  $ hg forget 'notafile*'
  notafile*: No such file or directory
  [1]
#else
  $ hg forget 'notafile'
  notafile: * (glob)
  [1]
#endif

  $ cd ..