view tests/test-phases-exchange.t @ 30818:4c0a5a256ae8

localrepo: experimental support for non-zlib revlog compression

The final part of integrating the compression manager APIs into
revlog storage is the plumbing for repositories to advertise they
are using non-zlib storage and for revlogs to instantiate a non-zlib
compression engine.

The main intent of the compression manager work was to zstd all
of the things. Adding zstd to revlogs has proved to be more involved
than other places because revlogs are... special. Very small inputs
and the use of delta chains (which are themselves a form of
compression) are a completely different use case from streaming
compression, which bundles and the wire protocol employ. I've
conducted numerous experiments with zstd in revlogs and have yet
to formalize compression settings and a storage architecture that
I'm confident I won't regret later. In other words, I'm not yet
ready to commit to a new mechanism for using zstd - or any other
compression format - in revlogs.

That being said, having some support for zstd (and other compression
formats) in revlogs in core is beneficial. It can allow others to
conduct experiments.

This patch introduces *highly experimental* support for non-zlib
compression formats in revlogs. Introduced is a config option to
control which compression engine to use. Also introduced is a namespace
of "exp-compression-*" requirements to denote support for non-zlib
compression in revlogs. I've prefixed the namespace with "exp-"
(short for "experimental") because I'm not confident of the
requirements "schema" and in no way want to give the illusion of
supporting these requirements in the future. I fully intend to drop
support for these requirements once we figure out what we're doing
with zstd in revlogs.

A good portion of the patch is teaching the requirements system
about registered compression engines and passing the requested
compression engine as an opener option so revlogs can instantiate
the proper compression engine for new operations.

That's a verbose way of saying "we can now use zstd in revlogs!"

On an `hg pull` conversion of the mozilla-unified repo with no extra
redelta settings (like aggressivemergedeltas), we can see the impact
of zstd vs zlib in revlogs:

$ hg perfrevlogchunks -c
! chunk
! wall 2.032052 comb 2.040000 user 1.990000 sys 0.050000 (best of 5)
! wall 1.866360 comb 1.860000 user 1.820000 sys 0.040000 (best of 6)

! chunk batch
! wall 1.877261 comb 1.870000 user 1.860000 sys 0.010000 (best of 6)
! wall 1.705410 comb 1.710000 user 1.690000 sys 0.020000 (best of 6)

$ hg perfrevlogchunks -m
! chunk
! wall 2.721427 comb 2.720000 user 2.640000 sys 0.080000 (best of 4)
! wall 2.035076 comb 2.030000 user 1.950000 sys 0.080000 (best of 5)

! chunk batch
! wall 2.614561 comb 2.620000 user 2.580000 sys 0.040000 (best of 4)
! wall 1.910252 comb 1.910000 user 1.880000 sys 0.030000 (best of 6)

$ hg perfrevlog -c -d 1
! wall 4.812885 comb 4.820000 user 4.800000 sys 0.020000 (best of 3)
! wall 4.699621 comb 4.710000 user 4.700000 sys 0.010000 (best of 3)

$ hg perfrevlog -m -d 1000
! wall 34.252800 comb 34.250000 user 33.730000 sys 0.520000 (best of 3)
! wall 24.094999 comb 24.090000 user 23.320000 sys 0.770000 (best of 3)

Only modest wins for the changelog. But manifest reading is
significantly faster. What's going on?

One reason might be data volume. zstd decompresses faster. So given
more bytes, it will put more distance between it and zlib.

Another reason is size. In the current design, zstd revlogs are
*larger*:

debugcreatestreamclonebundle (size in bytes)
zlib: 1,638,852,492
zstd: 1,680,601,332

I haven't investigated this fully, but I reckon a significant cause of
larger revlogs is that the zstd frame/header has more bytes than
zlib's. For very small inputs or data that doesn't compress well, we'll
tend to store more uncompressed chunks than with zlib (because the
compressed size isn't smaller than original). This will make revlog
reading faster because it is doing less decompression.

Moving on to bundle performance:

$ hg bundle -a -t none-v2 (total CPU time)
zlib: 102.79s
zstd:  97.75s

So, marginal CPU decrease for reading all chunks in all revlogs
(this is somewhat disappointing).

$ hg bundle -a -t <engine>-v2 (total CPU time)
zlib: 191.59s
zstd: 115.36s

This last test effectively measures the difference between zlib->zlib
and zstd->zstd for revlogs to bundle. This is a rough approximation of
what a server does during `hg clone`.

There are some promising results for zstd. But not enough for me to
feel comfortable advertising it to users. We'll get there...

#require killdaemons

  $ hgph() { hg log -G --template "{rev} {phase} {desc} - {node|short}\n" $*; }

  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    message="$1"
  >    shift
  >    hg ci -m "$message" $*
  > }

  $ hg init alpha
  $ cd alpha
  $ mkcommit a-A
  $ mkcommit a-B
  $ mkcommit a-C
  $ mkcommit a-D
  $ hgph
  @  3 draft a-D - b555f63b6063
  |
  o  2 draft a-C - 54acac6f23ab
  |
  o  1 draft a-B - 548a3d25dbf0
  |
  o  0 draft a-A - 054250a37db4
  

  $ hg init ../beta
  $ hg push -r 1 ../beta
  pushing to ../beta
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  $ hgph
  @  3 draft a-D - b555f63b6063
  |
  o  2 draft a-C - 54acac6f23ab
  |
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

  $ cd ../beta
  $ hgph
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg up -q
  $ mkcommit b-A
  $ hgph
  @  2 draft b-A - f54f1bb90ff3
  |
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg pull ../alpha
  pulling from ../alpha
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hgph
  o  4 public a-D - b555f63b6063
  |
  o  3 public a-C - 54acac6f23ab
  |
  | @  2 draft b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

pull did not updated ../alpha state.
push from alpha to beta should update phase even if nothing is transferred

  $ cd ../alpha
  $ hgph # not updated by remote pull
  @  3 draft a-D - b555f63b6063
  |
  o  2 draft a-C - 54acac6f23ab
  |
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg push -r 2 ../beta
  pushing to ../beta
  searching for changes
  no changes found
  [1]
  $ hgph
  @  3 draft a-D - b555f63b6063
  |
  o  2 public a-C - 54acac6f23ab
  |
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg push ../beta
  pushing to ../beta
  searching for changes
  no changes found
  [1]
  $ hgph
  @  3 public a-D - b555f63b6063
  |
  o  2 public a-C - 54acac6f23ab
  |
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

update must update phase of common changeset too

  $ hg pull ../beta # getting b-A
  pulling from ../beta
  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)

  $ cd ../beta
  $ hgph # not updated by remote pull
  o  4 public a-D - b555f63b6063
  |
  o  3 public a-C - 54acac6f23ab
  |
  | @  2 draft b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg pull ../alpha
  pulling from ../alpha
  searching for changes
  no changes found
  $ hgph
  o  4 public a-D - b555f63b6063
  |
  o  3 public a-C - 54acac6f23ab
  |
  | @  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Publish configuration option
----------------------------

Pull
````

changegroup are added without phase movement

  $ hg bundle -a ../base.bundle
  5 changesets found
  $ cd ..
  $ hg init mu
  $ cd mu
  $ cat > .hg/hgrc << EOF
  > [phases]
  > publish=0
  > EOF
  $ hg unbundle ../base.bundle
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 5 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hgph
  o  4 draft a-D - b555f63b6063
  |
  o  3 draft a-C - 54acac6f23ab
  |
  | o  2 draft b-A - f54f1bb90ff3
  |/
  o  1 draft a-B - 548a3d25dbf0
  |
  o  0 draft a-A - 054250a37db4
  
  $ cd ..

Pulling from publish=False to publish=False does not move boundary.

  $ hg init nu
  $ cd nu
  $ cat > .hg/hgrc << EOF
  > [phases]
  > publish=0
  > EOF
  $ hg pull ../mu -r 54acac6f23ab
  pulling from ../mu
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 3 files
  (run 'hg update' to get a working copy)
  $ hgph
  o  2 draft a-C - 54acac6f23ab
  |
  o  1 draft a-B - 548a3d25dbf0
  |
  o  0 draft a-A - 054250a37db4
  

Even for common

  $ hg pull ../mu -r f54f1bb90ff3
  pulling from ../mu
  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)
  $ hgph
  o  3 draft b-A - f54f1bb90ff3
  |
  | o  2 draft a-C - 54acac6f23ab
  |/
  o  1 draft a-B - 548a3d25dbf0
  |
  o  0 draft a-A - 054250a37db4
  


Pulling from Publish=True to Publish=False move boundary in common set.
we are in nu

  $ hg pull ../alpha -r b555f63b6063
  pulling from ../alpha
  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)
  $ hgph # f54f1bb90ff3 stay draft, not ancestor of -r
  o  4 public a-D - b555f63b6063
  |
  | o  3 draft b-A - f54f1bb90ff3
  | |
  o |  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

pulling from Publish=False to publish=False with some public

  $ hg up -q f54f1bb90ff3
  $ mkcommit n-A
  $ mkcommit n-B
  $ hgph
  @  6 draft n-B - 145e75495359
  |
  o  5 draft n-A - d6bcb4f74035
  |
  | o  4 public a-D - b555f63b6063
  | |
  o |  3 draft b-A - f54f1bb90ff3
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ cd ../mu
  $ hg pull ../nu
  pulling from ../nu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  (run 'hg update' to get a working copy)
  $ hgph
  o  6 draft n-B - 145e75495359
  |
  o  5 draft n-A - d6bcb4f74035
  |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 draft b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ cd ..

pulling into publish=True

  $ cd alpha
  $ hgph
  o  4 public b-A - f54f1bb90ff3
  |
  | @  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg pull ../mu
  pulling from ../mu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  (run 'hg update' to get a working copy)
  $ hgph
  o  6 draft n-B - 145e75495359
  |
  o  5 draft n-A - d6bcb4f74035
  |
  o  4 public b-A - f54f1bb90ff3
  |
  | @  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ cd ..

pulling back into original repo

  $ cd nu
  $ hg pull ../alpha
  pulling from ../alpha
  searching for changes
  no changes found
  $ hgph
  @  6 public n-B - 145e75495359
  |
  o  5 public n-A - d6bcb4f74035
  |
  | o  4 public a-D - b555f63b6063
  | |
  o |  3 public b-A - f54f1bb90ff3
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Push
````

(inserted)

Test that phase are pushed even when they are nothing to pus
(this might be tested later bu are very convenient to not alter too much test)

Push back to alpha

  $ hg push ../alpha # from nu
  pushing to ../alpha
  searching for changes
  no changes found
  [1]
  $ cd ..
  $ cd alpha
  $ hgph
  o  6 public n-B - 145e75495359
  |
  o  5 public n-A - d6bcb4f74035
  |
  o  4 public b-A - f54f1bb90ff3
  |
  | @  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

(end insertion)


initial setup

  $ hg log -G # of alpha
  o  changeset:   6:145e75495359
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     n-B
  |
  o  changeset:   5:d6bcb4f74035
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     n-A
  |
  o  changeset:   4:f54f1bb90ff3
  |  parent:      1:548a3d25dbf0
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     b-A
  |
  | @  changeset:   3:b555f63b6063
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     a-D
  | |
  | o  changeset:   2:54acac6f23ab
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     a-C
  |
  o  changeset:   1:548a3d25dbf0
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     a-B
  |
  o  changeset:   0:054250a37db4
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     a-A
  
  $ mkcommit a-E
  $ mkcommit a-F
  $ mkcommit a-G
  $ hg up d6bcb4f74035 -q
  $ mkcommit a-H
  created new head
  $ hgph
  @  10 draft a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 draft a-F - b740e3e5c05d
  | |
  | o  7 draft a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Pulling from bundle does not alter phases of changeset not present in the bundle

  $ hg bundle  --base 1 -r 6 -r 3 ../partial-bundle.hg
  5 changesets found
  $ hg pull ../partial-bundle.hg
  pulling from ../partial-bundle.hg
  searching for changes
  no changes found
  $ hgph
  @  10 draft a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 draft a-F - b740e3e5c05d
  | |
  | o  7 draft a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Pushing to Publish=False (unknown changeset)

  $ hg push ../mu -r b740e3e5c05d # a-F
  pushing to ../mu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  $ hgph
  @  10 draft a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 draft a-F - b740e3e5c05d
  | |
  | o  7 draft a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

  $ cd ../mu
  $ hgph # again f54f1bb90ff3, d6bcb4f74035 and 145e75495359 stay draft,
  >      # not ancestor of -r
  o  8 draft a-F - b740e3e5c05d
  |
  o  7 draft a-E - e9f537e46dea
  |
  | o  6 draft n-B - 145e75495359
  | |
  | o  5 draft n-A - d6bcb4f74035
  | |
  o |  4 public a-D - b555f63b6063
  | |
  o |  3 public a-C - 54acac6f23ab
  | |
  | o  2 draft b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Pushing to Publish=True (unknown changeset)

  $ hg push ../beta -r b740e3e5c05d
  pushing to ../beta
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  $ hgph # again f54f1bb90ff3, d6bcb4f74035 and 145e75495359 stay draft,
  >      # not ancestor of -r
  o  8 public a-F - b740e3e5c05d
  |
  o  7 public a-E - e9f537e46dea
  |
  | o  6 draft n-B - 145e75495359
  | |
  | o  5 draft n-A - d6bcb4f74035
  | |
  o |  4 public a-D - b555f63b6063
  | |
  o |  3 public a-C - 54acac6f23ab
  | |
  | o  2 draft b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Pushing to Publish=True (common changeset)

  $ cd ../beta
  $ hg push ../alpha
  pushing to ../alpha
  searching for changes
  no changes found
  [1]
  $ hgph
  o  6 public a-F - b740e3e5c05d
  |
  o  5 public a-E - e9f537e46dea
  |
  o  4 public a-D - b555f63b6063
  |
  o  3 public a-C - 54acac6f23ab
  |
  | @  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ cd ../alpha
  $ hgph
  @  10 draft a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Pushing to Publish=False (common changeset that change phase + unknown one)

  $ hg push ../mu -r 967b449fbc94 -f
  pushing to ../mu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  $ hgph
  @  10 draft a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ cd ../mu
  $ hgph # d6bcb4f74035 should have changed phase
  >      # 145e75495359 is still draft. not ancestor of -r
  o  9 draft a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 draft n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  


Pushing to Publish=True (common changeset from publish=False)

(in mu)
  $ hg push ../alpha
  pushing to ../alpha
  searching for changes
  no changes found
  [1]
  $ hgph
  o  9 public a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hgph -R ../alpha # a-H should have been synced to 0
  @  10 public a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  


Bare push with next changeset and common changeset needing sync (issue3575)

(reset some stat on remote repo to avoid confusing other tests)

  $ hg -R ../alpha --config extensions.strip= strip --no-backup 967b449fbc94
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg phase --force --draft b740e3e5c05d 967b449fbc94
  $ hg push -fv ../alpha
  pushing to ../alpha
  searching for changes
  1 changesets found
  uncompressed size of bundle content:
       178 (changelog)
       165 (manifests)
       131  a-H
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  $ hgph
  o  9 public a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

  $ hg -R ../alpha update 967b449fbc94 #for latter test consistency
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hgph -R ../alpha
  @  10 public a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Discovery locally secret changeset on a remote repository:

- should make it non-secret

  $ cd ../alpha
  $ mkcommit A-secret --config phases.new-commit=2
  $ hgph
  @  11 secret A-secret - 435b5d83910c
  |
  o  10 public a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg bundle --base 'parents(.)' -r . ../secret-bundle.hg
  1 changesets found
  $ hg -R ../mu unbundle ../secret-bundle.hg
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hgph -R ../mu
  o  10 draft A-secret - 435b5d83910c
  |
  o  9 public a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
  $ hg pull ../mu
  pulling from ../mu
  searching for changes
  no changes found
  $ hgph
  @  11 draft A-secret - 435b5d83910c
  |
  o  10 public a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

pushing a locally public and draft changesets remotely secret should make them
appear on the remote side.

  $ hg -R ../mu phase --secret --force 967b449fbc94
  $ hg push -r 435b5d83910c ../mu
  pushing to ../mu
  searching for changes
  abort: push creates new remote head 435b5d83910c!
  (merge or see 'hg help push' for details about pushing new heads)
  [255]
  $ hg push -fr 435b5d83910c ../mu # because the push will create new visible head
  pushing to ../mu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 0 changes to 2 files
  $ hgph -R ../mu
  o  10 draft A-secret - 435b5d83910c
  |
  o  9 public a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

pull new changeset with common draft locally

  $ hg up -q 967b449fbc94 # create a new root for draft
  $ mkcommit 'alpha-more'
  created new head
  $ hg push -fr . ../mu
  pushing to ../mu
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  $ cd ../mu
  $ hg phase --secret --force 1c5cfd894796
  $ hg up -q 435b5d83910c
  $ mkcommit 'mu-more'
  $ cd ../alpha
  $ hg pull ../mu
  pulling from ../mu
  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)
  $ hgph
  o  13 draft mu-more - 5237fb433fc8
  |
  | @  12 draft alpha-more - 1c5cfd894796
  | |
  o |  11 draft A-secret - 435b5d83910c
  |/
  o  10 public a-H - 967b449fbc94
  |
  | o  9 draft a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

Test that test are properly ignored on remote event when existing locally

  $ cd ..
  $ hg clone -qU -r b555f63b6063 -r f54f1bb90ff3 beta gamma

# pathological case are
#
# * secret remotely
# * known locally
# * repo have uncommon changeset

  $ hg -R beta phase --secret --force f54f1bb90ff3
  $ hg -R gamma phase --draft --force f54f1bb90ff3

  $ cd gamma
  $ hg pull ../beta
  pulling from ../beta
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  (run 'hg update' to get a working copy)
  $ hg phase f54f1bb90ff3
  2: draft

same over the wire

  $ cd ../beta
  $ hg serve -p $HGPORT -d --pid-file=../beta.pid -E ../beta-error.log
  $ cat ../beta.pid >> $DAEMON_PIDS
  $ cd ../gamma

  $ hg pull http://localhost:$HGPORT/ # bundle2+
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found
  $ hg phase f54f1bb90ff3
  2: draft

enforce bundle1

  $ hg pull http://localhost:$HGPORT/ --config devel.legacy.exchange=bundle1
  pulling from http://localhost:$HGPORT/
  searching for changes
  no changes found
  $ hg phase f54f1bb90ff3
  2: draft

check that secret local on both side are not synced to public

  $ hg push -r b555f63b6063 http://localhost:$HGPORT/
  pushing to http://localhost:$HGPORT/
  searching for changes
  no changes found
  [1]
  $ hg phase f54f1bb90ff3
  2: draft

put the changeset in the draft state again
(first test after this one expect to be able to copy)

  $ cd ..


Test Clone behavior

A. Clone without secret changeset

1.  cloning non-publishing repository
(Phase should be preserved)

# make sure there is no secret so we can use a copy clone

  $ hg -R mu phase --draft 'secret()'

  $ hg clone -U mu Tau
  $ hgph -R Tau
  o  12 draft mu-more - 5237fb433fc8
  |
  | o  11 draft alpha-more - 1c5cfd894796
  | |
  o |  10 draft A-secret - 435b5d83910c
  |/
  o  9 public a-H - 967b449fbc94
  |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  | o  4 public a-D - b555f63b6063
  | |
  | o  3 public a-C - 54acac6f23ab
  | |
  o |  2 public b-A - f54f1bb90ff3
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  

2. cloning publishing repository

(everything should be public)

  $ hg clone -U alpha Upsilon
  $ hgph -R Upsilon
  o  13 public mu-more - 5237fb433fc8
  |
  | o  12 public alpha-more - 1c5cfd894796
  | |
  o |  11 public A-secret - 435b5d83910c
  |/
  o  10 public a-H - 967b449fbc94
  |
  | o  9 public a-G - 3e27b6f1eee1
  | |
  | o  8 public a-F - b740e3e5c05d
  | |
  | o  7 public a-E - e9f537e46dea
  | |
  +---o  6 public n-B - 145e75495359
  | |
  o |  5 public n-A - d6bcb4f74035
  | |
  o |  4 public b-A - f54f1bb90ff3
  | |
  | o  3 public a-D - b555f63b6063
  | |
  | o  2 public a-C - 54acac6f23ab
  |/
  o  1 public a-B - 548a3d25dbf0
  |
  o  0 public a-A - 054250a37db4
  
#if unix-permissions no-root

Pushing From an unlockable repo
--------------------------------
(issue3684)

Unability to lock the source repo should not prevent the push. It will prevent
the retrieval of remote phase during push. For example, pushing to a publishing
server won't turn changeset public.

1. Test that push is not prevented

  $ hg init Phi
  $ cd Upsilon
  $ chmod -R -w .hg
  $ hg push ../Phi
  pushing to ../Phi
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 14 changesets with 14 changes to 14 files (+3 heads)
  $ chmod -R +w .hg

2. Test that failed phases movement are reported

  $ hg phase --force --draft 3
  $ chmod -R -w .hg
  $ hg push ../Phi
  pushing to ../Phi
  searching for changes
  no changes found
  cannot lock source repo, skipping local public phase update
  [1]
  $ chmod -R +w .hg

  $ cd ..

#endif

Test that clone behaves like pull and doesn't
publish changesets as plain push does

  $ hg -R Upsilon phase -q --force --draft 2
  $ hg clone -q Upsilon Pi -r 7
  $ hgph Upsilon -r 'min(draft())'
  o  2 draft a-C - 54acac6f23ab
  |
  ~

  $ hg -R Upsilon push Pi -r 7
  pushing to Pi
  searching for changes
  no changes found
  [1]
  $ hgph Upsilon -r 'min(draft())'
  o  8 draft a-F - b740e3e5c05d
  |
  ~

  $ hg -R Upsilon push Pi -r 8
  pushing to Pi
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

  $ hgph Upsilon -r 'min(draft())'
  o  9 draft a-G - 3e27b6f1eee1
  |
  ~