annotate tests/test-share.t @ 27246:b288fb2724bf

wireproto: config options to disable bundle1

bundle2 is the new and preferred wire protocol format. For various
reasons, server operators may wish to force clients to use it.

One reason is performance. If a repository is stored in generaldelta,
the server must recompute deltas in order to produce the bundle1
changegroup. This can be extremely expensive. For mozilla-central,
bundle generation typically takes a few minutes. However, generating
a non-gd bundle from a generaldelta encoded mozilla-central requires
over 30 minutes of CPU! If a large repository like mozilla-central
were encoded in generaldelta and non-gd clients connected, they could
easily flood a server by cloning.

This patch gives server operators config knobs to control whether
bundle1 is allowed for push and pull operations. The default is to
support legacy bundle1 clients, making this patch backwards compatible.

#require killdaemons

  $ echo "[extensions]"      >> $HGRCPATH
  $ echo "share = "          >> $HGRCPATH

prepare repo1

  $ hg init repo1
  $ cd repo1
  $ echo a > a
  $ hg commit -A -m'init'
  adding a

share it

  $ cd ..
  $ hg share repo1 repo2
  updating working directory
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

share shouldn't have a store dir

  $ cd repo2
  $ test -d .hg/store
  [1]

Some sed versions appends newline, some don't, and some just fails

  $ cat .hg/sharedpath; echo
  $TESTTMP/repo1/.hg (glob)

trailing newline on .hg/sharedpath is ok
  $ hg tip -q
  0:d3873e73d99e
  $ echo '' >> .hg/sharedpath
  $ cat .hg/sharedpath
  $TESTTMP/repo1/.hg (glob)
  $ hg tip -q
  0:d3873e73d99e

commit in shared clone

  $ echo a >> a
  $ hg commit -m'change in shared clone'

check original

  $ cd ../repo1
  $ hg log
  changeset:   1:8af4dc49db9e
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     change in shared clone
  
  changeset:   0:d3873e73d99e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     init
  
  $ hg update
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat a             # should be two lines of "a"
  a
  a

commit in original

  $ echo b > b
  $ hg commit -A -m'another file'
  adding b

check in shared clone

  $ cd ../repo2
  $ hg log
  changeset:   2:c2e0ac586386
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     another file
  
  changeset:   1:8af4dc49db9e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     change in shared clone
  
  changeset:   0:d3873e73d99e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     init
  
  $ hg update
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat b             # should exist with one "b"
  b

hg serve shared clone

  $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ get-with-headers.py localhost:$HGPORT 'raw-file/'
  200 Script output follows
  
  
  -rw-r--r-- 4 a
  -rw-r--r-- 2 b
  
  

test unshare command

  $ hg unshare
  $ test -d .hg/store
  $ test -f .hg/sharedpath
  [1]
  $ hg unshare
  abort: this is not a shared repo
  [255]

check that a change does not propagate

  $ echo b >> b
  $ hg commit -m'change in unshared'
  $ cd ../repo1
  $ hg id -r tip
  c2e0ac586386 tip

  $ cd ..


test sharing bookmarks

  $ hg share -B repo1 repo3
  updating working directory
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd repo1
  $ hg bookmark bm1
  $ hg bookmarks
   * bm1                       2:c2e0ac586386
  $ cd ../repo2
  $ hg book bm2
  $ hg bookmarks
   * bm2                       3:0e6e70d1d5f1
  $ cd ../repo3
  $ hg bookmarks
     bm1                       2:c2e0ac586386
  $ hg book bm3
  $ hg bookmarks
     bm1                       2:c2e0ac586386
   * bm3                       2:c2e0ac586386
  $ cd ../repo1
  $ hg bookmarks
   * bm1                       2:c2e0ac586386
     bm3                       2:c2e0ac586386

test that commits work

  $ echo 'shared bookmarks' > a
  $ hg commit -m 'testing shared bookmarks'
  $ hg bookmarks
   * bm1                       3:b87954705719
     bm3                       2:c2e0ac586386
  $ cd ../repo3
  $ hg bookmarks
     bm1                       3:b87954705719
   * bm3                       2:c2e0ac586386
  $ echo 'more shared bookmarks' > a
  $ hg commit -m 'testing shared bookmarks'
  created new head
  $ hg bookmarks
     bm1                       3:b87954705719
   * bm3                       4:62f4ded848e4
  $ cd ../repo1
  $ hg bookmarks
   * bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
  $ cd ..

test pushing bookmarks works

  $ hg clone repo3 repo4
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd repo4
  $ hg boo bm4
  $ echo foo > b
  $ hg commit -m 'foo in b'
  $ hg boo
     bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
   * bm4                       5:92793bfc8cad
  $ hg push -B bm4
  pushing to $TESTTMP/repo3 (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  exporting bookmark bm4
  $ cd ../repo1
  $ hg bookmarks
   * bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ cd ../repo3
  $ hg bookmarks
     bm1                       3:b87954705719
   * bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ cd ..

test behavior when sharing a shared repo

  $ hg share -B repo3 repo5
  updating working directory
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd repo5
  $ hg book
     bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ cd ..

test what happens when an active bookmark is deleted

  $ cd repo1
  $ hg boo -d bm3
  $ hg boo
   * bm1                       3:b87954705719
     bm4                       5:92793bfc8cad
  $ cd ../repo3
  $ hg boo
     bm1                       3:b87954705719
     bm4                       5:92793bfc8cad
  $ cd ..

verify that bookmarks are not written on failed transaction

  $ cat > failpullbookmarks.py << EOF
  > """A small extension that makes bookmark pulls fail, for testing"""
  > from mercurial import extensions, exchange, error
  > def _pullbookmarks(orig, pullop):
  >     orig(pullop)
  >     raise error.HookAbort('forced failure by extension')
  > def extsetup(ui):
  >     extensions.wrapfunction(exchange, '_pullbookmarks', _pullbookmarks)
  > EOF
  $ cd repo4
  $ hg boo
     bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
   * bm4                       5:92793bfc8cad
  $ cd ../repo3
  $ hg boo
     bm1                       3:b87954705719
     bm4                       5:92793bfc8cad
  $ hg --config "extensions.failpullbookmarks=$TESTTMP/failpullbookmarks.py" pull $TESTTMP/repo4
  pulling from $TESTTMP/repo4 (glob)
  searching for changes
  no changes found
  adding remote bookmark bm3
  abort: forced failure by extension
  [255]
  $ hg boo
     bm1                       3:b87954705719
     bm4                       5:92793bfc8cad
  $ hg pull $TESTTMP/repo4
  pulling from $TESTTMP/repo4 (glob)
  searching for changes
  no changes found
  adding remote bookmark bm3
  $ hg boo
     bm1                       3:b87954705719
   * bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ cd ..

verify bookmark behavior after unshare

  $ cd repo3
  $ hg unshare
  $ hg boo
     bm1                       3:b87954705719
   * bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ hg boo -d bm4
  $ hg boo bm5
  $ hg boo
     bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
   * bm5                       4:62f4ded848e4
  $ cd ../repo1
  $ hg boo
   * bm1                       3:b87954705719
     bm3                       4:62f4ded848e4
     bm4                       5:92793bfc8cad
  $ cd ..

Explicitly kill daemons to let the test exit on Windows

  $ killdaemons.py