view tests/test-incoming-outgoing.t @ 26755:bb0b955d050d

streamclone: support for producing and consuming stream clone bundles

Up to this point, stream clones only existed as a dynamically generated
data format produced and consumed during streaming clones. In order to
support this efficient cloning format with the clone bundles feature, we
need a more formal, on disk representation of the streaming clone data.

This patch introduces a new "bundle" type for streaming clones. Unlike
existing bundles, it does not contain changegroup data. It does,
however, share the same concepts like the 4 byte header which identifies
the type of data that follows and the 2 byte abbreviation for
compression types (of which only "UN" is currently supported).

The new bundle format is essentially the existing stream clone version 1
data format with some headers at the beginning.

Content negotiation at stream clone request time checked for repository
format/requirements compatibility before initiating a stream clone. We
can't do active content negotiation when using clone bundles. So, we put
this set of requirements inside the payload so consumers have a built-in
mechanism for checking compatibility before reading and applying lots of
data. Of course, we will also advertise this requirements set in clone
bundles. But that's for another patch.

We currently don't have a mechanism to produce and consume this new
bundle format. This will be implemented in upcoming patches.

It's worth noting that if a legacy client attempts to `hg unbundle` a
stream clone bundle (with the "HGS1" header), it will abort with:
"unknown bundle version S1," which seems appropriate.

#require serve

  $ hg init test
  $ cd test
  $ for i in 0 1 2 3 4 5 6 7 8; do
  >     echo $i >> foo
  >     hg commit -A -m $i
  > done
  adding foo
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 9 changesets, 9 total revisions
  $ hg serve -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ cd ..

  $ hg init new

http incoming

  $ hg -R new incoming http://localhost:$HGPORT/
  comparing with http://localhost:$HGPORT/
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   5:ad284ee3b5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  changeset:   6:e9229f2de384
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     6
  
  changeset:   7:d152815bb8db
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     7
  
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  
  $ hg -R new incoming -r 4 http://localhost:$HGPORT/
  comparing with http://localhost:$HGPORT/
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  

local incoming

  $ hg -R new incoming test
  comparing with test
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   5:ad284ee3b5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  changeset:   6:e9229f2de384
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     6
  
  changeset:   7:d152815bb8db
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     7
  
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  
  $ hg -R new incoming -r 4 test
  comparing with test
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  

limit to 2 changesets

  $ hg -R new incoming -l 2 test
  comparing with test
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  

limit to 2 changesets, test with -p --git

  $ hg -R new incoming -l 2 -p --git test
  comparing with test
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  diff --git a/foo b/foo
  new file mode 100644
  --- /dev/null
  +++ b/foo
  @@ -0,0 +1,1 @@
  +0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  diff --git a/foo b/foo
  --- a/foo
  +++ b/foo
  @@ -1,1 +1,2 @@
   0
  +1
  

test with --bundle

  $ hg -R new incoming --bundle test.hg http://localhost:$HGPORT/
  comparing with http://localhost:$HGPORT/
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   5:ad284ee3b5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  changeset:   6:e9229f2de384
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     6
  
  changeset:   7:d152815bb8db
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     7
  
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  
  $ hg -R new incoming --bundle test2.hg test
  comparing with test
  changeset:   0:00a43fa82f62
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     0
  
  changeset:   1:5460a410df01
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:d9f42cd1a1ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:376476025137
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:70d7eb252d49
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   5:ad284ee3b5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  changeset:   6:e9229f2de384
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     6
  
  changeset:   7:d152815bb8db
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     7
  
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  


test the resulting bundles

  $ hg init temp
  $ hg init temp2
  $ hg -R temp unbundle test.hg
  adding changesets
  adding manifests
  adding file changes
  added 9 changesets with 9 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hg -R temp2 unbundle test2.hg
  adding changesets
  adding manifests
  adding file changes
  added 9 changesets with 9 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hg -R temp tip
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  
  $ hg -R temp2 tip
  changeset:   8:e4feb4ac9035
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     8
  

  $ rm -r temp temp2 new

test outgoing

  $ hg clone test test-dev
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd test-dev
  $ for i in 9 10 11 12 13; do
  >     echo $i >> foo
  >     hg commit -A -m $i
  > done
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 14 changesets, 14 total revisions
  $ cd ..
  $ hg -R test-dev outgoing test
  comparing with test
  searching for changes
  changeset:   9:d89d4abea5bc
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     9
  
  changeset:   10:820095aa7158
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     10
  
  changeset:   11:09ede2f3a638
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     11
  
  changeset:   12:e576b1bed305
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     12
  
  changeset:   13:96bbff09a7cc
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     13
  
test outgoing with secret changesets

  $ hg -R test-dev phase --force --secret 9
  $ hg -R test-dev outgoing test
  comparing with test
  searching for changes
  no changes found (ignored 5 secret changesets)
  [1]
  $ hg -R test-dev phase --draft -r 'head()'

limit to 3 changesets

  $ hg -R test-dev outgoing -l 3 test
  comparing with test
  searching for changes
  changeset:   9:d89d4abea5bc
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     9
  
  changeset:   10:820095aa7158
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     10
  
  changeset:   11:09ede2f3a638
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     11
  
  $ hg -R test-dev outgoing http://localhost:$HGPORT/
  comparing with http://localhost:$HGPORT/
  searching for changes
  changeset:   9:d89d4abea5bc
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     9
  
  changeset:   10:820095aa7158
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     10
  
  changeset:   11:09ede2f3a638
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     11
  
  changeset:   12:e576b1bed305
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     12
  
  changeset:   13:96bbff09a7cc
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     13
  
  $ hg -R test-dev outgoing -r 11 http://localhost:$HGPORT/
  comparing with http://localhost:$HGPORT/
  searching for changes
  changeset:   9:d89d4abea5bc
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     9
  
  changeset:   10:820095aa7158
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     10
  
  changeset:   11:09ede2f3a638
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     11
  

incoming from empty remote repository

  $ hg init r1
  $ hg init r2
  $ echo a > r1/foo
  $ hg -R r1 ci -Ama
  adding foo
  $ hg -R r1 incoming r2 --bundle x.hg
  comparing with r2
  searching for changes
  no changes found
  [1]