view tests/test-subrepo.t @ 16120:47ee41fcf42b

largefiles: optimize update speed by only updating changed largefiles

Historically, during 'hg update', every largefile in the working copy was
hashed (which is a very expensive operation on big files) and any
largefiles that did not have a hash that matched their standin were
updated.

This patch optimizes 'hg update' by keeping track of what standins have
changed between the old and new revisions, and only updating the largefiles
that have changed.  This saves a lot of time by avoiding the unecessary
calculation of a list of sha1 hashes for big files.

With this patch, the time 'hg update' takes to complete is a function of
how many largefiles need to be updated and what their size is.

Performance tests on a repository with about 80 largefiles ranging from
a few MB to about 97 MB are shown below.  The tests show how long it takes
to run 'hg update' with no changes actually being updated.

Mercurial 2.1 release:

$ time hg update
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
getting changed largefiles
0 largefiles updated, 0 removed

real    0m10.045s
user    0m9.367s
sys    0m0.674s

With this patch:

$ time hg update
0 files updated, 0 files merged, 0 files removed, 0 files unresolved

real    0m0.965s
user    0m0.845s
sys    0m0.115s

The same repsoitory, without the largefiles extension enabled:

$ time hg update
0 files updated, 0 files merged, 0 files removed, 0 files unresolved

real    0m0.799s
user    0m0.684s
sys    0m0.111s

So before the patch, 'hg update' with no changes was approximately 9.25s
slower with largefiles enabled.  With this patch, it is approximately 0.165s
slower.

Let commit recurse into subrepos by default to match pre-2.0 behavior:

  $ echo "[ui]" >> $HGRCPATH
  $ echo "commitsubrepos = Yes" >> $HGRCPATH

  $ rm -rf sub
  $ mkdir sub
  $ cd sub
  $ hg init t
  $ cd t

first revision, no sub

  $ echo a > a
  $ hg ci -Am0
  adding a

add first sub

  $ echo s = s > .hgsub
  $ hg add .hgsub
  $ hg init s
  $ echo a > s/a

Issue2232: committing a subrepo without .hgsub

  $ hg ci -mbad s
  abort: can't commit subrepos without .hgsub
  [255]

  $ hg -R s ci -Ams0
  adding a
  $ hg sum
  parent: 0:f7b1eb17ad24 tip
   0
  branch: default
  commit: 1 added, 1 subrepos
  update: (current)
  $ hg ci -m1

Revert can't (yet) revert subrepos:

  $ echo b > s/a
  $ hg revert s
  s: reverting subrepos is unsupported

Revert currently ignores subrepos by default

  $ hg revert -a
  $ hg revert -R s -a -C
  reverting s/a (glob)

Issue2022: update -C

  $ echo b > s/a
  $ hg sum
  parent: 1:7cf8cfea66e4 tip
   1
  branch: default
  commit: 1 subrepos
  update: (current)
  $ hg co -C 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg sum
  parent: 1:7cf8cfea66e4 tip
   1
  branch: default
  commit: (clean)
  update: (current)

commands that require a clean repo should respect subrepos

  $ echo b >> s/a
  $ hg backout tip
  abort: uncommitted changes in subrepo s
  [255]
  $ hg revert -C -R s s/a

add sub sub

  $ echo ss = ss > s/.hgsub
  $ hg init s/ss
  $ echo a > s/ss/a
  $ hg -R s add s/.hgsub
  $ hg -R s/ss add s/ss/a
  $ hg sum
  parent: 1:7cf8cfea66e4 tip
   1
  branch: default
  commit: 1 subrepos
  update: (current)
  $ hg ci -m2
  committing subrepository s
  committing subrepository s/ss (glob)
  $ hg sum
  parent: 2:df30734270ae tip
   2
  branch: default
  commit: (clean)
  update: (current)

bump sub rev (and check it is ignored by ui.commitsubrepos)

  $ echo b > s/a
  $ hg -R s ci -ms1
  $ hg --config ui.commitsubrepos=no ci -m3

leave sub dirty (and check ui.commitsubrepos=no aborts the commit)

  $ echo c > s/a
  $ hg --config ui.commitsubrepos=no ci -m4
  abort: uncommitted changes in subrepo s
  (use --subrepos for recursive commit)
  [255]
  $ hg ci -m4
  committing subrepository s
  $ hg tip -R s
  changeset:   3:1c833a7a9e3a
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  

check caching

  $ hg co 0
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg debugsub

restore

  $ hg co
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg debugsub
  path s
   source   s
   revision 1c833a7a9e3a4445c711aaf0f012379cd0d4034e

new branch for merge tests

  $ hg co 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo t = t >> .hgsub
  $ hg init t
  $ echo t > t/t
  $ hg -R t add t
  adding t/t (glob)

5

  $ hg ci -m5 # add sub
  committing subrepository t
  created new head
  $ echo t2 > t/t

6

  $ hg st -R s
  $ hg ci -m6 # change sub
  committing subrepository t
  $ hg debugsub
  path s
   source   s
   revision e4ece1bf43360ddc8f6a96432201a37b7cd27ae4
  path t
   source   t
   revision 6747d179aa9a688023c4b0cad32e4c92bb7f34ad
  $ echo t3 > t/t

7

  $ hg ci -m7 # change sub again for conflict test
  committing subrepository t
  $ hg rm .hgsub

8

  $ hg ci -m8 # remove sub

merge tests

  $ hg co -C 3
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 5 # test adding
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg debugsub
  path s
   source   s
   revision fc627a69481fcbe5f1135069e8a3881c023e4cf5
  path t
   source   t
   revision 60ca1237c19474e7a3978b0dc1ca4e6f36d51382
  $ hg ci -m9
  created new head
  $ hg merge 6 --debug # test change
    searching for copies back to rev 2
  resolving manifests
   overwrite: False, partial: False
   ancestor: 1f14a2e2d3ec, local: f0d2028bf86d+, remote: 1831e14459c4
   .hgsubstate: versions differ -> m
  updating: .hgsubstate 1/1 files (100.00%)
  subrepo merge f0d2028bf86d+ 1831e14459c4 1f14a2e2d3ec
    subrepo t: other changed, get t:6747d179aa9a688023c4b0cad32e4c92bb7f34ad:hg
  getting subrepo t
  resolving manifests
   overwrite: True, partial: False
   ancestor: 60ca1237c194+, local: 60ca1237c194+, remote: 6747d179aa9a
   t: remote is newer -> g
  updating: t 1/1 files (100.00%)
  getting t
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg debugsub
  path s
   source   s
   revision fc627a69481fcbe5f1135069e8a3881c023e4cf5
  path t
   source   t
   revision 6747d179aa9a688023c4b0cad32e4c92bb7f34ad
  $ echo conflict > t/t
  $ hg ci -m10
  committing subrepository t
  $ HGMERGE=internal:merge hg merge --debug 7 # test conflict
    searching for copies back to rev 2
  resolving manifests
   overwrite: False, partial: False
   ancestor: 1831e14459c4, local: e45c8b14af55+, remote: f94576341bcf
   .hgsubstate: versions differ -> m
  updating: .hgsubstate 1/1 files (100.00%)
  subrepo merge e45c8b14af55+ f94576341bcf 1831e14459c4
    subrepo t: both sides changed, merge with t:7af322bc1198a32402fe903e0b7ebcfc5c9bf8f4:hg
  merging subrepo t
    searching for copies back to rev 2
  resolving manifests
   overwrite: False, partial: False
   ancestor: 6747d179aa9a, local: 20a0db6fbf6c+, remote: 7af322bc1198
   t: versions differ -> m
  preserving t for resolve of t
  updating: t 1/1 files (100.00%)
  picked tool 'internal:merge' for t (binary False symlink False)
  merging t
  my t@20a0db6fbf6c+ other t@7af322bc1198 ancestor t@6747d179aa9a
  warning: conflicts during merge.
  merging t incomplete! (edit conflicts, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

should conflict

  $ cat t/t
  <<<<<<< local
  conflict
  =======
  t3
  >>>>>>> other

clone

  $ cd ..
  $ hg clone t tc
  updating to branch default
  cloning subrepo s from $TESTTMP/sub/t/s (glob)
  cloning subrepo s/ss from $TESTTMP/sub/t/s/ss (glob)
  cloning subrepo t from $TESTTMP/sub/t/t (glob)
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd tc
  $ hg debugsub
  path s
   source   s
   revision fc627a69481fcbe5f1135069e8a3881c023e4cf5
  path t
   source   t
   revision 20a0db6fbf6c3d2836e6519a642ae929bfc67c0e

push

  $ echo bah > t/t
  $ hg ci -m11
  committing subrepository t
  $ hg push
  pushing to $TESTTMP/sub/t (glob)
  pushing subrepo s/ss to $TESTTMP/sub/t/s/ss (glob)
  searching for changes
  no changes found
  pushing subrepo s to $TESTTMP/sub/t/s (glob)
  searching for changes
  no changes found
  pushing subrepo t to $TESTTMP/sub/t/t (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

push -f

  $ echo bah > s/a
  $ hg ci -m12
  committing subrepository s
  $ hg push
  pushing to $TESTTMP/sub/t (glob)
  pushing subrepo s/ss to $TESTTMP/sub/t/s/ss (glob)
  searching for changes
  no changes found
  pushing subrepo s to $TESTTMP/sub/t/s (glob)
  searching for changes
  abort: push creates new remote head 12a213df6fa9!
  (did you forget to merge? use push -f to force)
  [255]
  $ hg push -f
  pushing to $TESTTMP/sub/t (glob)
  pushing subrepo s/ss to $TESTTMP/sub/t/s/ss (glob)
  searching for changes
  no changes found
  pushing subrepo s to $TESTTMP/sub/t/s (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  pushing subrepo t to $TESTTMP/sub/t/t (glob)
  searching for changes
  no changes found
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

update

  $ cd ../t
  $ hg up -C # discard our earlier merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo blah > t/t
  $ hg ci -m13
  committing subrepository t

pull

  $ cd ../tc
  $ hg pull
  pulling from $TESTTMP/sub/t (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)

should pull t

  $ hg up
  pulling subrepo t from $TESTTMP/sub/t/t (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat t/t
  blah

bogus subrepo path aborts

  $ echo 'bogus=[boguspath' >> .hgsub
  $ hg ci -m 'bogus subrepo path'
  abort: missing ] in subrepo source
  [255]

Issue1986: merge aborts when trying to merge a subrepo that
shouldn't need merging

# subrepo layout
#
#   o   5 br
#  /|
# o |   4 default
# | |
# | o   3 br
# |/|
# o |   2 default
# | |
# | o   1 br
# |/
# o     0 default

  $ cd ..
  $ rm -rf sub
  $ hg init main
  $ cd main
  $ hg init s
  $ cd s
  $ echo a > a
  $ hg ci -Am1
  adding a
  $ hg branch br
  marked working directory as branch br
  (branches are permanent and global, did you want a bookmark?)
  $ echo a >> a
  $ hg ci -m1
  $ hg up default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo b > b
  $ hg ci -Am1
  adding b
  $ hg up br
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg merge tip
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m1
  $ hg up 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Am1
  adding c
  $ hg up 3
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg merge 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m1

# main repo layout:
#
#   * <-- try to merge default into br again
# .`|
# . o   5 br      --> substate = 5
# . |
# o |   4 default --> substate = 4
# | |
# | o   3 br      --> substate = 2
# |/|
# o |   2 default --> substate = 2
# | |
# | o   1 br      --> substate = 3
# |/
# o     0 default --> substate = 2

  $ cd ..
  $ echo 's = s' > .hgsub
  $ hg -R s up 2
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg ci -Am1
  adding .hgsub
  $ hg branch br
  marked working directory as branch br
  (branches are permanent and global, did you want a bookmark?)
  $ echo b > b
  $ hg -R s up 3
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg ci -Am1
  adding b
  $ hg up default
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Am1
  adding c
  $ hg up 1
  2 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg merge 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m1
  $ hg up 2
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg -R s up 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo d > d
  $ hg ci -Am1
  adding d
  $ hg up 3
  2 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg -R s up 5
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo e > e
  $ hg ci -Am1
  adding e

  $ hg up 5
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 4    # try to merge default into br again
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cd ..

test subrepo delete from .hgsubstate

  $ hg init testdelete
  $ mkdir testdelete/nested testdelete/nested2
  $ hg init testdelete/nested
  $ hg init testdelete/nested2
  $ echo test > testdelete/nested/foo
  $ echo test > testdelete/nested2/foo
  $ hg -R testdelete/nested add
  adding testdelete/nested/foo (glob)
  $ hg -R testdelete/nested2 add
  adding testdelete/nested2/foo (glob)
  $ hg -R testdelete/nested ci -m test
  $ hg -R testdelete/nested2 ci -m test
  $ echo nested = nested > testdelete/.hgsub
  $ echo nested2 = nested2 >> testdelete/.hgsub
  $ hg -R testdelete add
  adding testdelete/.hgsub (glob)
  $ hg -R testdelete ci -m "nested 1 & 2 added"
  $ echo nested = nested > testdelete/.hgsub
  $ hg -R testdelete ci -m "nested 2 deleted"
  $ cat testdelete/.hgsubstate
  bdf5c9a3103743d900b12ae0db3ffdcfd7b0d878 nested
  $ hg -R testdelete remove testdelete/.hgsub
  $ hg -R testdelete ci -m ".hgsub deleted"
  $ cat testdelete/.hgsubstate
  bdf5c9a3103743d900b12ae0db3ffdcfd7b0d878 nested

test repository cloning

  $ mkdir mercurial mercurial2
  $ hg init nested_absolute
  $ echo test > nested_absolute/foo
  $ hg -R nested_absolute add
  adding nested_absolute/foo (glob)
  $ hg -R nested_absolute ci -mtest
  $ cd mercurial
  $ hg init nested_relative
  $ echo test2 > nested_relative/foo2
  $ hg -R nested_relative add
  adding nested_relative/foo2 (glob)
  $ hg -R nested_relative ci -mtest2
  $ hg init main
  $ echo "nested_relative = ../nested_relative" > main/.hgsub
  $ echo "nested_absolute = `pwd`/nested_absolute" >> main/.hgsub
  $ hg -R main add
  adding main/.hgsub (glob)
  $ hg -R main ci -m "add subrepos"
  $ cd ..
  $ hg clone mercurial/main mercurial2/main
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat mercurial2/main/nested_absolute/.hg/hgrc \
  >     mercurial2/main/nested_relative/.hg/hgrc
  [paths]
  default = $TESTTMP/sub/mercurial/nested_absolute
  [paths]
  default = $TESTTMP/sub/mercurial/nested_relative
  $ rm -rf mercurial mercurial2

Issue1977: multirepo push should fail if subrepo push fails

  $ hg init repo
  $ hg init repo/s
  $ echo a > repo/s/a
  $ hg -R repo/s ci -Am0
  adding a
  $ echo s = s > repo/.hgsub
  $ hg -R repo ci -Am1
  adding .hgsub
  $ hg clone repo repo2
  updating to branch default
  cloning subrepo s from $TESTTMP/sub/repo/s (glob)
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -q -R repo2 pull -u
  $ echo 1 > repo2/s/a
  $ hg -R repo2/s ci -m2
  $ hg -q -R repo2/s push
  $ hg -R repo2/s up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo 2 > repo2/s/a
  $ hg -R repo2/s ci -m3
  created new head
  $ hg -R repo2 ci -m3
  $ hg -q -R repo2 push
  abort: push creates new remote head 9d66565e64e1!
  (did you forget to merge? use push -f to force)
  [255]
  $ hg -R repo update
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm -rf repo2 repo


Issue1852 subrepos with relative paths always push/pull relative to default

Prepare a repo with subrepo

  $ hg init issue1852a
  $ cd issue1852a
  $ hg init sub/repo
  $ echo test > sub/repo/foo
  $ hg -R sub/repo add sub/repo/foo
  $ echo sub/repo = sub/repo > .hgsub
  $ hg add .hgsub
  $ hg ci -mtest
  committing subrepository sub/repo (glob)
  $ echo test >> sub/repo/foo
  $ hg ci -mtest
  committing subrepository sub/repo (glob)
  $ cd ..

Create repo without default path, pull top repo, and see what happens on update

  $ hg init issue1852b
  $ hg -R issue1852b pull issue1852a
  pulling from issue1852a
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 3 changes to 2 files
  (run 'hg update' to get a working copy)
  $ hg -R issue1852b update
  abort: default path for subrepository sub/repo not found (glob)
  [255]

Pull -u now doesn't help

  $ hg -R issue1852b pull -u issue1852a
  pulling from issue1852a
  searching for changes
  no changes found

Try the same, but with pull -u

  $ hg init issue1852c
  $ hg -R issue1852c pull -r0 -u issue1852a
  pulling from issue1852a
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 2 changes to 2 files
  cloning subrepo sub/repo from issue1852a/sub/repo (glob)
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

Try to push from the other side

  $ hg -R issue1852a push `pwd`/issue1852c
  pushing to $TESTTMP/sub/issue1852c
  pushing subrepo sub/repo to $TESTTMP/sub/issue1852c/sub/repo (glob)
  searching for changes
  no changes found
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

Incoming and outgoing should not use the default path:

  $ hg clone -q issue1852a issue1852d
  $ hg -R issue1852d outgoing --subrepos issue1852c
  comparing with issue1852c
  searching for changes
  no changes found
  comparing with issue1852c/sub/repo
  searching for changes
  no changes found
  [1]
  $ hg -R issue1852d incoming --subrepos issue1852c
  comparing with issue1852c
  searching for changes
  no changes found
  comparing with issue1852c/sub/repo
  searching for changes
  no changes found
  [1]

Check status of files when none of them belong to the first
subrepository:

  $ hg init subrepo-status
  $ cd subrepo-status
  $ hg init subrepo-1
  $ hg init subrepo-2
  $ cd subrepo-2
  $ touch file
  $ hg add file
  $ cd ..
  $ echo subrepo-1 = subrepo-1 > .hgsub
  $ echo subrepo-2 = subrepo-2 >> .hgsub
  $ hg add .hgsub
  $ hg ci -m 'Added subrepos'
  committing subrepository subrepo-2
  $ hg st subrepo-2/file

Check hg update --clean
  $ cd $TESTTMP/sub/t
  $ rm -r t/t.orig
  $ hg status -S --all
  C .hgsub
  C .hgsubstate
  C a
  C s/.hgsub
  C s/.hgsubstate
  C s/a
  C s/ss/a
  C t/t
  $ echo c1 > s/a
  $ cd s
  $ echo c1 > b
  $ echo c1 > c
  $ hg add b
  $ cd ..
  $ hg status -S
  M s/a
  A s/b
  ? s/c
  $ hg update -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg status -S
  ? s/b
  ? s/c

Sticky subrepositories, no changes
  $ cd $TESTTMP/sub/t
  $ hg id
  925c17564ef8 tip
  $ hg -R s id
  12a213df6fa9 tip
  $ hg -R t id  
  52c0adc0515a tip
  $ hg update 11
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id
  365661e5936a
  $ hg -R s id
  fc627a69481f
  $ hg -R t id  
  e95bcfa18a35

Sticky subrepositorys, file changes
  $ touch s/f1
  $ touch t/f1
  $ hg add -S s/f1
  $ hg add -S t/f1
  $ hg id
  365661e5936a
  $ hg -R s id
  fc627a69481f+
  $ hg -R t id  
  e95bcfa18a35+
  $ hg update tip
   subrepository sources for s differ
  use (l)ocal source (fc627a69481f) or (r)emote source (12a213df6fa9)?
   l
   subrepository sources for t differ
  use (l)ocal source (e95bcfa18a35) or (r)emote source (52c0adc0515a)?
   l
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id
  925c17564ef8+ tip
  $ hg -R s id
  fc627a69481f+
  $ hg -R t id  
  e95bcfa18a35+
  $ hg update --clean tip
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

Sticky subrepository, revision updates
  $ hg id
  925c17564ef8 tip
  $ hg -R s id
  12a213df6fa9 tip
  $ hg -R t id  
  52c0adc0515a tip
  $ cd s
  $ hg update -r -2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ../t
  $ hg update -r 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ..
  $ hg update 10
   subrepository sources for t differ (in checked out version)
  use (l)ocal source (7af322bc1198) or (r)emote source (20a0db6fbf6c)?
   l
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id
  e45c8b14af55+
  $ hg -R s id
  1c833a7a9e3a
  $ hg -R t id  
  7af322bc1198

Sticky subrepository, file changes and revision updates
  $ touch s/f1
  $ touch t/f1
  $ hg add -S s/f1
  $ hg add -S t/f1
  $ hg id
  e45c8b14af55+
  $ hg -R s id
  1c833a7a9e3a+
  $ hg -R t id  
  7af322bc1198+
  $ hg update tip
   subrepository sources for s differ
  use (l)ocal source (1c833a7a9e3a) or (r)emote source (12a213df6fa9)?
   l
   subrepository sources for t differ
  use (l)ocal source (7af322bc1198) or (r)emote source (52c0adc0515a)?
   l
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id
  925c17564ef8 tip
  $ hg -R s id
  1c833a7a9e3a+
  $ hg -R t id  
  7af322bc1198+

Sticky repository, update --clean
  $ hg update --clean tip
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id
  925c17564ef8 tip
  $ hg -R s id
  12a213df6fa9 tip
  $ hg -R t id  
  52c0adc0515a tip

Test subrepo already at intended revision:
  $ cd s
  $ hg update fc627a69481f
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ..
  $ hg update 11
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg id -n
  11+
  $ hg -R s id
  fc627a69481f
  $ hg -R t id 
  e95bcfa18a35

Test that removing .hgsubstate doesn't break anything:

  $ hg rm -f .hgsubstate
  $ hg ci -mrm
  nothing changed
  [1]
  $ hg log -vr tip
  changeset:   13:925c17564ef8
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  files:       .hgsubstate
  description:
  13
  
  

Test that removing .hgsub removes .hgsubstate:

  $ hg rm .hgsub
  $ hg ci -mrm2
  created new head
  $ hg log -vr tip
  changeset:   14:2400bccd50af
  tag:         tip
  parent:      11:365661e5936a
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  files:       .hgsub .hgsubstate
  description:
  rm2
  
  
Test issue3153: diff -S with deleted subrepos

  $ hg diff --nodates -S -c .
  diff -r 365661e5936a -r 2400bccd50af .hgsub
  --- a/.hgsub
  +++ /dev/null
  @@ -1,2 +0,0 @@
  -s = s
  -t = t
  diff -r 365661e5936a -r 2400bccd50af .hgsubstate
  --- a/.hgsubstate
  +++ /dev/null
  @@ -1,2 +0,0 @@
  -fc627a69481fcbe5f1135069e8a3881c023e4cf5 s
  -e95bcfa18a358dc4936da981ebf4147b4cad1362 t

Test behavior of add for explicit path in subrepo:
  $ cd ..
  $ hg init explicit
  $ cd explicit
  $ echo s = s > .hgsub
  $ hg add .hgsub
  $ hg init s
  $ hg ci -m0
Adding with an explicit path in a subrepo adds the file
  $ echo c1 > f1
  $ echo c2 > s/f2
  $ hg st -S
  ? f1
  ? s/f2
  $ hg add s/f2
  $ hg st -S
  A s/f2
  ? f1
  $ hg ci -R s -m0
  $ hg ci -Am1
  adding f1
Adding with an explicit path in a subrepo with -S has the same behavior
  $ echo c3 > f3
  $ echo c4 > s/f4
  $ hg st -S
  ? f3
  ? s/f4
  $ hg add -S s/f4
  $ hg st -S
  A s/f4
  ? f3
  $ hg ci -R s -m1
  $ hg ci -Ama2
  adding f3
Adding without a path or pattern silently ignores subrepos
  $ echo c5 > f5
  $ echo c6 > s/f6
  $ echo c7 > s/f7
  $ hg st -S
  ? f5
  ? s/f6
  ? s/f7
  $ hg add
  adding f5
  $ hg st -S
  A f5
  ? s/f6
  ? s/f7
  $ hg ci -R s -Am2
  adding f6
  adding f7
  $ hg ci -m3
Adding without a path or pattern with -S also adds files in subrepos
  $ echo c8 > f8
  $ echo c9 > s/f9
  $ echo c10 > s/f10
  $ hg st -S
  ? f8
  ? s/f10
  ? s/f9
  $ hg add -S
  adding f8
  adding s/f10 (glob)
  adding s/f9 (glob)
  $ hg st -S
  A f8
  A s/f10
  A s/f9
  $ hg ci -R s -m3
  $ hg ci -m4
Adding with a pattern silently ignores subrepos
  $ echo c11 > fm11
  $ echo c12 > fn12
  $ echo c13 > s/fm13
  $ echo c14 > s/fn14
  $ hg st -S
  ? fm11
  ? fn12
  ? s/fm13
  ? s/fn14
  $ hg add 'glob:**fm*'
  adding fm11
  $ hg st -S
  A fm11
  ? fn12
  ? s/fm13
  ? s/fn14
  $ hg ci -R s -Am4
  adding fm13
  adding fn14
  $ hg ci -Am5
  adding fn12
Adding with a pattern with -S also adds matches in subrepos
  $ echo c15 > fm15
  $ echo c16 > fn16
  $ echo c17 > s/fm17
  $ echo c18 > s/fn18
  $ hg st -S
  ? fm15
  ? fn16
  ? s/fm17
  ? s/fn18
  $ hg add -S 'glob:**fm*'
  adding fm15
  adding s/fm17 (glob)
  $ hg st -S
  A fm15
  A s/fm17
  ? fn16
  ? s/fn18
  $ hg ci -R s -Am5
  adding fn18
  $ hg ci -Am6
  adding fn16

Test behavior of forget for explicit path in subrepo:
Forgetting an explicit path in a subrepo untracks the file
  $ echo c19 > s/f19
  $ hg add s/f19
  $ hg st -S
  A s/f19
  $ hg forget s/f19
  $ hg st -S
  ? s/f19
  $ rm s/f19