view tests/test-mq-subrepo.t @ 38486:4c0683655599

namespaces: let namespaces override singlenode() definition

Some namespaces have multiple nodes per name (meaning that their
namemap() returns multiple nodes). One such namespace is the "topics"
namespace (from the evolve repo). We also have our own internal
namespace at Google (for review units) that has multiple nodes per
name. These namespaces may not want to use the default "pick highest
revnum" resolution that we currently use when resolving a name to a
single node. As an example, they may decide that `hg co <name>` should
check out a commit that's last in some sense even if an earlier commit
had just been amended and thus had a higher revnum [1]. This patch
gives the namespace the option to continue to return multiple nodes
and to override how the best node is picked. Allowing namespaces to
override that may also be useful as an optimization (it may be cheaper
for the namespace to find just that node).

I have been arguing (in D3715) for using all the nodes returned from
namemap() when resolving the symbol to a revset, so e.g. `hg log -r
stable` would resolve to *all* nodes on stable, not just the one with
the highest revnum (except that I don't actually think we should
change it for the branch namespace because of BC). Most people seem
opposed to that. If we decide not to do it, I think we can deprecate
the namemap() function in favor of the new singlenode() (I find it
weird to have namespaces, like the branch namespace, where namemap()
isn't nodemap()'s inverse). I therefore think this patch makes sense
regardless of what we decide on that issue.


 [1] Actually, even the branch namespace would have wanted to override
     singlenode() if it had supported multiple nodes. That's because
     closes branch heads are mostly ignored, so "hg co default" will
     not check out the highest-revnum node if that's a closed head.

Differential Revision: https://phab.mercurial-scm.org/D3852

  $ cat <<EOF >> $HGRCPATH
  > [ui]
  > commitsubrepos = Yes
  > [extensions]
  > mq =
  > record =
  > [diff]
  > nodates = 1
  > EOF

  $ stdin=`pwd`/stdin.tmp

fn to create new repository w/dirty subrepo, and cd into it
  $ mkrepo() {
  >     hg init $1
  >     cd $1
  >     hg qinit
  > }

fn to create dirty subrepo
  $ mksubrepo() {
  >     hg init $1
  >     cd $1
  >     echo a > a
  >     hg add
  >     cd ..
  > }

  $ testadd() {
  >     cat - > "$stdin"
  >     mksubrepo sub
  >     echo sub = sub >> .hgsub
  >     hg add .hgsub
  >     echo % abort when adding .hgsub w/dirty subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     echo [$?]
  >     hg -R sub ci -m0sub
  >     echo % update substate when adding .hgsub w/clean updated subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     hg debugsub
  > }

  $ testmod() {
  >     cat - > "$stdin"
  >     mksubrepo sub2
  >     echo sub2 = sub2 >> .hgsub
  >     echo % abort when modifying .hgsub w/dirty subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     echo [$?]
  >     hg -R sub2 ci -m0sub2
  >     echo % update substate when modifying .hgsub w/clean updated subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     hg debugsub
  > }

  $ testrm1() {
  >     cat - > "$stdin"
  >     mksubrepo sub3
  >     echo sub3 = sub3 >> .hgsub
  >     hg ci -Aqmsub3
  >     $EXTRA
  >     echo b >> sub3/a
  >     hg rm .hgsub
  >     echo % update substate when removing .hgsub w/dirty subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     echo % debugsub should be empty
  >     hg debugsub
  > }

  $ testrm2() {
  >     cat - > "$stdin"
  >     mksubrepo sub4
  >     echo sub4 = sub4 >> .hgsub
  >     hg ci -Aqmsub4
  >     $EXTRA
  >     hg rm .hgsub
  >     echo % update substate when removing .hgsub w/clean updated subrepo
  >     hg status -S
  >     echo '%' $*
  >     cat "$stdin" | hg $*
  >     echo % debugsub should be empty
  >     hg debugsub
  > }


handle subrepos safely on qnew

  $ mkrepo repo-2499-qnew
  $ testadd qnew -X path:no-effect -m0 0.diff
  adding a
  % abort when adding .hgsub w/dirty subrepo
  A .hgsub
  A sub/a
  % qnew -X path:no-effect -m0 0.diff
  abort: uncommitted changes in subrepository "sub"
  [255]
  % update substate when adding .hgsub w/clean updated subrepo
  A .hgsub
  A sub/a
  % qnew -X path:no-effect -m0 0.diff
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31

  $ testmod qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
  adding a
  % abort when modifying .hgsub w/dirty subrepo
  M .hgsub
  A sub2/a
  % qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
  abort: uncommitted changes in subrepository "sub2"
  [255]
  % update substate when modifying .hgsub w/clean updated subrepo
  M .hgsub
  A sub2/a
  % qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
  path sub2
   source   sub2
   revision 1f94c7611cc6b74f5a17b16121a1170d44776845

  $ hg qpop -qa
  patch queue now empty
  $ testrm1 qnew -m2 2.diff
  adding a
  % update substate when removing .hgsub w/dirty subrepo
  M sub3/a
  R .hgsub
  % qnew -m2 2.diff
  % debugsub should be empty

  $ hg qpop -qa
  patch queue now empty
  $ testrm2 qnew -m3 3.diff
  adding a
  % update substate when removing .hgsub w/clean updated subrepo
  R .hgsub
  % qnew -m3 3.diff
  % debugsub should be empty

  $ cd ..


handle subrepos safely on qrefresh

  $ mkrepo repo-2499-qrefresh
  $ hg qnew -m0 0.diff
  $ testadd qrefresh
  adding a
  % abort when adding .hgsub w/dirty subrepo
  A .hgsub
  A sub/a
  % qrefresh
  abort: uncommitted changes in subrepository "sub"
  [255]
  % update substate when adding .hgsub w/clean updated subrepo
  A .hgsub
  A sub/a
  % qrefresh
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31

  $ hg qnew -m1 1.diff
  $ testmod qrefresh
  adding a
  % abort when modifying .hgsub w/dirty subrepo
  M .hgsub
  A sub2/a
  % qrefresh
  abort: uncommitted changes in subrepository "sub2"
  [255]
  % update substate when modifying .hgsub w/clean updated subrepo
  M .hgsub
  A sub2/a
  % qrefresh
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
  path sub2
   source   sub2
   revision 1f94c7611cc6b74f5a17b16121a1170d44776845

  $ hg qpop -qa
  patch queue now empty
  $ EXTRA='hg qnew -m2 2.diff'
  $ testrm1 qrefresh
  adding a
  % update substate when removing .hgsub w/dirty subrepo
  M sub3/a
  R .hgsub
  % qrefresh
  % debugsub should be empty

  $ hg qpop -qa
  patch queue now empty
  $ EXTRA='hg qnew -m3 3.diff'
  $ testrm2 qrefresh
  adding a
  % update substate when removing .hgsub w/clean updated subrepo
  R .hgsub
  % qrefresh
  % debugsub should be empty
  $ EXTRA=

  $ cd ..


handle subrepos safely on qpush/qpop
(and we cannot qpop / qpush with a modified subrepo)

  $ mkrepo repo-2499-qpush
  $ mksubrepo sub
  adding a
  $ hg -R sub ci -m0sub
  $ echo sub = sub > .hgsub
  $ hg add .hgsub
  $ hg commit -m0
  $ hg debugsub
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
  $ echo foo > ./sub/a
  $ hg -R sub commit -m foo
  $ hg commit -m1
  $ hg qimport -r "0:tip"
  $ hg -R sub id --id
  aa037b301eba

qpop
  $ hg -R sub update 0000
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg qpop
  abort: local changed subrepos found, qrefresh first
  [255]
  $ hg revert sub
  reverting subrepo sub
  adding sub/a
  $ hg qpop
  popping 1
  now at: 0
  $ hg status -AS
  C .hgsub
  C .hgsubstate
  C sub/a
  $ hg -R sub id --id
  b2fdb12cd82b

qpush
  $ hg -R sub update 0000
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg qpush
  abort: local changed subrepos found, qrefresh first
  [255]
  $ hg revert sub
  reverting subrepo sub
  adding sub/a
  $ hg qpush
  applying 1
   subrepository sub diverged (local revision: b2fdb12cd82b, remote revision: aa037b301eba)
  (M)erge, keep (l)ocal or keep (r)emote? m
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  now at: 1
  $ hg status -AS
  C .hgsub
  C .hgsubstate
  C sub/a
  $ hg -R sub id --id
  aa037b301eba

  $ cd ..


handle subrepos safely on qrecord

  $ mkrepo repo-2499-qrecord
  $ testadd qrecord --config ui.interactive=1 -m0 0.diff <<EOF
  > y
  > y
  > EOF
  adding a
  % abort when adding .hgsub w/dirty subrepo
  A .hgsub
  A sub/a
  % qrecord --config ui.interactive=1 -m0 0.diff
  diff --git a/.hgsub b/.hgsub
  new file mode 100644
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +sub = sub
  record this change to '.hgsub'? [Ynesfdaq?] y
  
  warning: subrepo spec file '.hgsub' not found
  warning: subrepo spec file '.hgsub' not found
  abort: uncommitted changes in subrepository "sub"
  [255]
  % update substate when adding .hgsub w/clean updated subrepo
  A .hgsub
  A sub/a
  % qrecord --config ui.interactive=1 -m0 0.diff
  diff --git a/.hgsub b/.hgsub
  new file mode 100644
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +sub = sub
  record this change to '.hgsub'? [Ynesfdaq?] y
  
  warning: subrepo spec file '.hgsub' not found
  warning: subrepo spec file '.hgsub' not found
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
  $ testmod qrecord --config ui.interactive=1 -m1 1.diff <<EOF
  > y
  > y
  > EOF
  adding a
  % abort when modifying .hgsub w/dirty subrepo
  M .hgsub
  A sub2/a
  % qrecord --config ui.interactive=1 -m1 1.diff
  diff --git a/.hgsub b/.hgsub
  1 hunks, 1 lines changed
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  @@ -1,1 +1,2 @@
   sub = sub
  +sub2 = sub2
  record this change to '.hgsub'? [Ynesfdaq?] y
  
  abort: uncommitted changes in subrepository "sub2"
  [255]
  % update substate when modifying .hgsub w/clean updated subrepo
  M .hgsub
  A sub2/a
  % qrecord --config ui.interactive=1 -m1 1.diff
  diff --git a/.hgsub b/.hgsub
  1 hunks, 1 lines changed
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  @@ -1,1 +1,2 @@
   sub = sub
  +sub2 = sub2
  record this change to '.hgsub'? [Ynesfdaq?] y
  
  path sub
   source   sub
   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
  path sub2
   source   sub2
   revision 1f94c7611cc6b74f5a17b16121a1170d44776845

  $ hg qpop -qa
  patch queue now empty
  $ testrm1 qrecord --config ui.interactive=1 -m2 2.diff <<EOF
  > y
  > y
  > EOF
  adding a
  % update substate when removing .hgsub w/dirty subrepo
  M sub3/a
  R .hgsub
  % qrecord --config ui.interactive=1 -m2 2.diff
  diff --git a/.hgsub b/.hgsub
  deleted file mode 100644
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  % debugsub should be empty

  $ hg qpop -qa
  patch queue now empty
  $ testrm2 qrecord --config ui.interactive=1 -m3 3.diff <<EOF
  > y
  > y
  > EOF
  adding a
  % update substate when removing .hgsub w/clean updated subrepo
  R .hgsub
  % qrecord --config ui.interactive=1 -m3 3.diff
  diff --git a/.hgsub b/.hgsub
  deleted file mode 100644
  examine changes to '.hgsub'? [Ynesfdaq?] y
  
  % debugsub should be empty

  $ cd ..


correctly handle subrepos with patch queues
  $ mkrepo repo-subrepo-with-queue
  $ mksubrepo sub
  adding a
  $ hg -R sub qnew sub0.diff
  $ echo sub = sub >> .hgsub
  $ hg add .hgsub
  $ hg qnew 0.diff

  $ cd ..

check whether MQ operations can import updated .hgsubstate correctly
both into 'revision' and 'patch file under .hg/patches':

  $ hg init importing-hgsubstate
  $ cd importing-hgsubstate

  $ echo a > a
  $ hg commit -u test -d '0 0' -Am '#0 in parent'
  adding a
  $ hg init sub
  $ echo sa > sub/sa
  $ hg -R sub commit -u test -d '0 0' -Am '#0 in sub'
  adding sa
  $ echo 'sub = sub' > .hgsub
  $ touch .hgsubstate
  $ hg add .hgsub .hgsubstate

  $ hg qnew -u test -d '0 0' import-at-qnew
  $ hg -R sub parents --template '{node} sub\n'
  b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  $ cat .hgsubstate
  b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  $ hg diff -c tip
  diff -r f499373e340c -r f69e96d86e75 .hgsub
  --- /dev/null
  +++ b/.hgsub
  @@ -0,0 +1,1 @@
  +sub = sub
  diff -r f499373e340c -r f69e96d86e75 .hgsubstate
  --- /dev/null
  +++ b/.hgsubstate
  @@ -0,0 +1,1 @@
  +b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  $ cat .hg/patches/import-at-qnew
  # HG changeset patch
  # User test
  # Date 0 0
  # Parent  f499373e340cdca5d01dee904aeb42dd2a325e71
  
  diff -r f499373e340c -r f69e96d86e75 .hgsub
  --- /dev/null
  +++ b/.hgsub
  @@ -0,0 +1,1 @@
  +sub = sub
  diff -r f499373e340c -r f69e96d86e75 .hgsubstate
  --- /dev/null
  +++ b/.hgsubstate
  @@ -0,0 +1,1 @@
  +b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  $ hg parents --template '{node}\n'
  f69e96d86e75a6d4fd88285dc9697acb23951041
  $ hg parents --template '{files}\n'
  .hgsub .hgsubstate

check also whether qnew not including ".hgsubstate" explicitly causes
as same result (in node hash) as one including it.

  $ hg qpop -a -q
  patch queue now empty
  $ hg qdelete import-at-qnew
  $ echo 'sub = sub' > .hgsub
  $ hg add .hgsub
  $ rm -f .hgsubstate
  $ hg qnew -u test -d '0 0' import-at-qnew
  $ hg parents --template '{node}\n'
  f69e96d86e75a6d4fd88285dc9697acb23951041
  $ hg parents --template '{files}\n'
  .hgsub .hgsubstate

check whether qrefresh imports updated .hgsubstate correctly

  $ hg qpop
  popping import-at-qnew
  patch queue now empty
  $ hg qpush
  applying import-at-qnew
  now at: import-at-qnew
  $ hg parents --template '{files}\n'
  .hgsub .hgsubstate

  $ hg qnew import-at-qrefresh
  $ echo sb > sub/sb
  $ hg -R sub commit -u test -d '0 0' -Am '#1 in sub'
  adding sb
  $ hg qrefresh -u test -d '0 0'
  $ hg -R sub parents --template '{node} sub\n'
  88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ cat .hgsubstate
  88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg diff -c tip
  diff -r 05b056bb9c8c -r d987bec230f4 .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ cat .hg/patches/import-at-qrefresh
  # HG changeset patch
  # User test
  # Date 0 0
  # Parent  05b056bb9c8c05ff15258b84fd42ab3527271033
  
  diff -r 05b056bb9c8c .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg parents --template '{files}\n'
  .hgsubstate

  $ hg qrefresh -u test -d '0 0'
  $ cat .hgsubstate
  88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg diff -c tip
  diff -r 05b056bb9c8c -r d987bec230f4 .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ cat .hg/patches/import-at-qrefresh
  # HG changeset patch
  # User test
  # Date 0 0
  # Parent  05b056bb9c8c05ff15258b84fd42ab3527271033
  
  diff -r 05b056bb9c8c .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg parents --template '{files}\n'
  .hgsubstate

  $ hg update -C tip
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg qpop -a
  popping import-at-qrefresh
  popping import-at-qnew
  patch queue now empty

  $ hg -R sub update -C 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo 'sub = sub' > .hgsub
  $ hg commit -Am '#1 in parent'
  adding .hgsub
  $ hg -R sub update -C 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg commit -Am '#2 in parent (but will be rolled back soon)'
  $ hg rollback
  repository tip rolled back to revision 1 (undo commit)
  working directory now based on revision 1
  $ hg status
  M .hgsubstate
  $ hg qnew -u test -d '0 0' checkstate-at-qnew
  $ hg -R sub parents --template '{node} sub\n'
  88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ cat .hgsubstate
  88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg diff -c tip
  diff -r 4d91eb2fa1d1 -r 1259c112d884 .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ cat .hg/patches/checkstate-at-qnew
  # HG changeset patch
  # User test
  # Date 0 0
  # Parent  4d91eb2fa1d1b22ec513347b9cd06f6b49d470fa
  
  diff -r 4d91eb2fa1d1 -r 1259c112d884 .hgsubstate
  --- a/.hgsubstate
  +++ b/.hgsubstate
  @@ -1,1 +1,1 @@
  -b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
  +88ac1bef5ed43b689d1d200b59886b675dec474b sub
  $ hg parents --template '{files}\n'
  .hgsubstate

check whether qrefresh not including ".hgsubstate" explicitly causes
as same result (in node hash) as one including it.

  $ hg update -C -q 0
  $ hg qpop -a -q
  patch queue now empty
  $ hg qnew -u test -d '0 0' add-hgsub-at-qrefresh
  $ echo 'sub = sub' > .hgsub
  $ echo > .hgsubstate
  $ hg add .hgsub .hgsubstate
  $ hg qrefresh -u test -d '0 0'
  $ hg parents --template '{node}\n'
  7c48c35501aae6770ed9c2517014628615821a8e
  $ hg parents --template '{files}\n'
  .hgsub .hgsubstate

  $ hg qpop -a -q
  patch queue now empty
  $ hg qdelete add-hgsub-at-qrefresh
  $ hg qnew -u test -d '0 0' add-hgsub-at-qrefresh
  $ echo 'sub = sub' > .hgsub
  $ hg add .hgsub
  $ rm -f .hgsubstate
  $ hg qrefresh -u test -d '0 0'
  $ hg parents --template '{node}\n'
  7c48c35501aae6770ed9c2517014628615821a8e
  $ hg parents --template '{files}\n'
  .hgsub .hgsubstate

  $ cd ..

  $ cd ..