annotate tests/test-discovery-obshashrange-cache.t @ 6935:954d7ea5cd67 stable tip

stack: when stack base is obsolete, pick any successor, even if at random

There are situations when s0 is obsolete and we also cannot pick just one
successor for it to use in stack. In such a case, let's pick the "latest"
successor from the first set.

We're assuming that obsutil.successorssets() returns data in the same order (it
should, since it makes sure to sort data internally). Keeping that in mind,
while the successor picked for s0 by this code is not based on any sort of
sophisticated logic, it should nonetheless be the same every time.

This patch is probably not going to completely break anything that was
previously working fine, because the previous behavior was to just abort with
an exception.

==============================
Test cache warming strategy 
test for range based discovery
==============================

  $ . $TESTDIR/testlib/pythonpath.sh

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > evolve =
  > [experimental]
  > obshashrange=1
  > verbose-obsolescence-exchange=1
  > [ui]
  > logtemplate = "{rev} {node|short} {desc} {tags}\n"
  > ssh = "$PYTHON" "$RUNTESTDIR/dummyssh"
  > EOF

  $ hg init main

  $ hg -R main debugbuilddag '.+7'

  $ for node in `hg -R main log -T '{node}\n'`; do
  >     anc=`echo $node | grep -o . | sort | tr -d "\n"`
  >     echo "marking $anc as predecessors of $node"
  >     hg -R main debugobsolete $anc $node
  > done
  marking 000011223334456677789aaaaabbbbcccddddeef as predecessors of 4de32a90b66cd083ebf3c00b41277aa7abca51dd
  1 new obsolescence markers
  marking 012234455555666699aaaaabbbccccccefffffff as predecessors of f69452c5b1af6cbaaa56ef50cf94fff5bcc6ca23
  1 new obsolescence markers
  marking 00001122233445555777778889999abbcccddeef as predecessors of c8d03c1b5e94af74b772900c58259d2e08917735
  1 new obsolescence markers
  marking 0011222445667777889999aabbbbcddddeeeeeee as predecessors of bebd167eb94d257ace0e814aeb98e6972ed2970d
  1 new obsolescence markers
  marking 000011222223344555566778899aaaabccddefff as predecessors of 2dc09a01254db841290af0538aa52f6f52c776e3
  1 new obsolescence markers
  marking 01111222223333444455555566999abbbbcceeef as predecessors of 01241442b3c2bf3211e593b549c655ea65b295e3
  1 new obsolescence markers
  marking 01122444445555566677888aabbcccddddefffff as predecessors of 66f7d451a68b85ed82ff5fcc254daf50c74144bd
  1 new obsolescence markers
  marking 000111111234444467777889999aaaabcdeeeeff as predecessors of 1ea73414a91b0920940797d8fc6a11e447f8ea1e
  1 new obsolescence markers

  $ hg debugobsolete -R main
  000011223334456677789aaaaabbbbcccddddeef 4de32a90b66cd083ebf3c00b41277aa7abca51dd 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  012234455555666699aaaaabbbccccccefffffff f69452c5b1af6cbaaa56ef50cf94fff5bcc6ca23 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  00001122233445555777778889999abbcccddeef c8d03c1b5e94af74b772900c58259d2e08917735 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  0011222445667777889999aabbbbcddddeeeeeee bebd167eb94d257ace0e814aeb98e6972ed2970d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  000011222223344555566778899aaaabccddefff 2dc09a01254db841290af0538aa52f6f52c776e3 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  01111222223333444455555566999abbbbcceeef 01241442b3c2bf3211e593b549c655ea65b295e3 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  01122444445555566677888aabbcccddddefffff 66f7d451a68b85ed82ff5fcc254daf50c74144bd 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  000111111234444467777889999aaaabcdeeeeff 1ea73414a91b0920940797d8fc6a11e447f8ea1e 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}

Cache mode is "auto" so local commit did not warm the cache yet

  $ f -s main/.hg/cache/evoext*
  main/.hg/cache/evoext-obscache-00: size=72

Initial push
------------

  $ hg init server
  $ hg -R main push ssh://user@dummy/server
  pushing to ssh://user@dummy/server
  searching for changes
  OBSEXC: computing relevant nodes
  OBSEXC: looking for common markers in 8 nodes
  OBSEXC: computing markers relevant to 8 nodes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 8 changesets with 0 changes to 0 files
  remote: 8 new obsolescence markers

server cache is warm

  $ f -s server/.hg/cache/evoext*
  server/.hg/cache/evoext-depthcache-00: size=88
  server/.hg/cache/evoext-firstmerge-00: size=88
  server/.hg/cache/evoext-obscache-00: size=72
  server/.hg/cache/evoext-stablesortcache-00: size=92
  server/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
  server/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)

client cache is warm

  $ f -s main/.hg/cache/evoext*
  main/.hg/cache/evoext-depthcache-00: size=88
  main/.hg/cache/evoext-firstmerge-00: size=88
  main/.hg/cache/evoext-obscache-00: size=72
  main/.hg/cache/evoext-stablesortcache-00: size=92
  main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
  main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)

initial pull
------------

  $ rm -rf main
  $ hg init main
  $ hg -R main pull ssh://user@dummy/server
  pulling from ssh://user@dummy/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  8 new obsolescence markers
  new changesets 1ea73414a91b:4de32a90b66c
  (run 'hg update' to get a working copy)

client cache is empty because the discovery was empty

  $ f -s main/.hg/cache/evoext*
  main/.hg/cache/evoext-obscache-00: size=72

no op pull
------------

clear cache

  $ rm main/.hg/cache/evoext*

pull nothing

  $ hg -R main pull ssh://user@dummy/server
  pulling from ssh://user@dummy/server
  searching for changes
  no changes found
  OBSEXC: looking for common markers in 8 nodes

client cache is warm

  $ f -s main/.hg/cache/evoext*
  main/.hg/cache/evoext-depthcache-00: size=88
  main/.hg/cache/evoext-firstmerge-00: size=88
  main/.hg/cache/evoext-stablesortcache-00: size=92
  main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
  main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)

no op push
------------

clear cache

  $ rm main/.hg/cache/evoext*

push nothing

  $ hg -R main push ssh://user@dummy/server
  pushing to ssh://user@dummy/server
  searching for changes
  OBSEXC: computing relevant nodes
  OBSEXC: looking for common markers in 8 nodes
  OBSEXC: markers already in sync
  no changes found
  [1]

suddenly cache is inaccessible, check that the push still succeeds (issue6246)

  $ chmod 0000 server/.hg/cache/*.sqlite

  $ hg -R main push ssh://user@dummy/server
  pushing to ssh://user@dummy/server
  searching for changes
  OBSEXC: computing relevant nodes
  OBSEXC: looking for common markers in 8 nodes
  OBSEXC: markers already in sync
  no changes found
  [1]

  $ chmod 0644 server/.hg/cache/*.sqlite

client cache is warm

  $ f -s main/.hg/cache/evoext*
  main/.hg/cache/evoext-depthcache-00: size=88
  main/.hg/cache/evoext-firstmerge-00: size=88
  main/.hg/cache/evoext-obscache-00: size=72
  main/.hg/cache/evoext-stablesortcache-00: size=92
  main/.hg/cache/evoext_obshashrange_v2.sqlite: size=?* (glob)
  main/.hg/cache/evoext_stablerange_v2.sqlite: size=?* (glob)

let's look at the contents of the caches

the reason we're doing this is to make sure our serialization works the same
way on all platforms, see https://bz.mercurial-scm.org/show_bug.cgi?id=6354

we don't need to check sqlite caches

  $ f -H main/.hg/cache/evoext-*
  main/.hg/cache/evoext-depthcache-00:
  0000: 00 00 00 07 4d e3 2a 90 b6 6c d0 83 eb f3 c0 0b |....M.*..l......|
  0010: 41 27 7a a7 ab ca 51 dd 01 00 00 00 00 00 00 00 |A'z...Q.........|
  0020: 02 00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 |................|
  0030: 04 00 00 00 00 00 00 00 05 00 00 00 00 00 00 00 |................|
  0040: 06 00 00 00 00 00 00 00 07 00 00 00 00 00 00 00 |................|
  0050: 08 00 00 00 00 00 00 00                         |........|
  main/.hg/cache/evoext-firstmerge-00:
  0000: 00 00 00 07 4d e3 2a 90 b6 6c d0 83 eb f3 c0 0b |....M.*..l......|
  0010: 41 27 7a a7 ab ca 51 dd ff ff ff ff ff ff ff ff |A'z...Q.........|
  0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0040: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
  0050: ff ff ff ff ff ff ff ff                         |........|
  main/.hg/cache/evoext-obscache-00:
  0000: 00 00 00 00 00 00 00 07 4d e3 2a 90 b6 6c d0 83 |........M.*..l..|
  0010: eb f3 c0 0b 41 27 7a a7 ab ca 51 dd 00 00 00 00 |....A'z...Q.....|
  0020: 00 00 00 08 00 00 00 00 00 00 02 29 4c 16 b4 10 |...........)L...|
  0030: 03 f6 c1 57 8d 58 25 ef c7 73 cd 79 03 4b fb 46 |...W.X%..s.y.K.F|
  0040: 00 00 00 00 00 00 00 00                         |........|
  main/.hg/cache/evoext-stablesortcache-00:
  0000: 00 00 00 07 4d e3 2a 90 b6 6c d0 83 eb f3 c0 0b |....M.*..l......|
  0010: 41 27 7a a7 ab ca 51 dd 00 00 00 40 00 00 00 00 |A'z...Q....@....|
  0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
  0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
  0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
  0050: 00 00 00 00 00 00 00 00 00 00 00 00             |............|