view tests/test-mq-subrepo.t @ 32697:19b9fc40cc51

revlog: skeleton support for version 2 revlogs There are a number of improvements we want to make to revlogs that will require a new version - version 2. It is unclear what the full set of improvements will be or when we'll be done with them. What I do know is that the process will likely take longer than a single release, will require input from various stakeholders to evaluate changes, and will have many contentious debates and bikeshedding. It is unrealistic to develop revlog version 2 up front: there are just too many uncertainties that we won't know until things are implemented and experiments are run. Some changes will also be invasive and prone to bit rot, so sitting on dozens of patches is not practical. This commit introduces skeleton support for version 2 revlogs in a way that is flexible and not bound by backwards compatibility concerns. An experimental repo requirement for denoting revlog v2 has been added. The requirement string has a sub-version component to it. This will allow us to declare multiple requirements in the course of developing revlog v2. Whenever we change the in-development revlog v2 format, we can tweak the string, creating a new requirement and locking out old clients. This will allow us to make as many backwards incompatible changes and experiments to revlog v2 as we want. In other words, we can land code and make meaningful progress towards revlog v2 while still maintaining extreme format flexibility up until the point we freeze the format and remove the experimental labels. To enable the new repo requirement, you must supply an experimental and undocumented config option. But not just any boolean flag will do: you need to explicitly use a value that no sane person should ever type. This is an additional guard against enabling revlog v2 on an installation it shouldn't be enabled on. The specific scenario I'm trying to prevent is say a user with a 4.4 client with a frozen format enabling the option but then downgrading to 4.3 and accidentally creating repos with an outdated and unsupported repo format. Requiring a "challenge" string should prevent this. Because the format is not yet finalized and I don't want to take any chances, revlog v2's version is currently 0xDEAD. I figure squatting on a value we're likely never to use as an actual revlog version to mean "internal testing only" is acceptable. And "dead" is easily recognized as something meaningful. There is a bunch of cleanup that is needed before work on revlog v2 begins in earnest. I plan on doing that work once this patch is accepted and we're comfortable with the idea of starting down this path.
author Gregory Szorc <gregory.szorc@gmail.com>
date Fri, 19 May 2017 20:29:11 -0700
parents a2804ddcf9ae
children 6d88468d435b
line wrap: on
line source

  $ 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 (glob)
  $ 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 (glob)
  $ 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 ..