view tests/test-remotefilelog-tags.t @ 40923:3ed77780f4a6

wireprotov2: send linknodes to emitfilerevisions()

Previously, linknodes were calculated within emitfilerevisions() by
using filectx.introrev(), which would always use the linkrev/linknode
as recorded by storage. This is wrong for cases where the receiver
doesn't have the changeset the linknode refers to.

This commit changes the logic for linknode emission so the mapping
of filenode to linknode is computed by the caller and passed into
emitfilerevisions().

As part of the change, linknodes for "filesdata" in the
haveparents=False case are now correct: the existing code performed a
manifest walk and it was trivial to plug in the correct linknode.

However, behavior for the haveparents=True case is still wrong
because it relies on filtering linkrevs against the outgoing set in
order to determine what to send. This will be fixed in a subsequent
commit.

The change test test-wireproto-exchangev2-shallow.t is a bit wonky.
The test repo has 6 revisions. The changed test is performing a shallow
clone with depth=1. So, only file data for revision 5 is present
locally. So, the new behavior of associating the linknode with
revision 5 for every file revision seems correct. Of course, when
backfilling old revisions, we'll want to update the linknode. But
this problem requires wire protocol support and we'll cross that
bridge later.

Differential Revision: https://phab.mercurial-scm.org/D5405

#require no-windows

  $ . "$TESTDIR/remotefilelog-library.sh"

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [remotefilelog]
  > server=True
  > EOF
  $ echo x > foo
  $ echo y > bar
  $ hg commit -qAm one
  $ hg tag tag1
  $ cd ..

# clone with tags

  $ hg clone --shallow ssh://user@dummy/master shallow --noupdate --config remotefilelog.excludepattern=.hgtags
  streaming all changes
  3 files to transfer, 662 bytes of data
  transferred 662 bytes in * seconds (*/sec) (glob)
  searching for changes
  no changes found
  $ cat >> shallow/.hg/hgrc <<EOF
  > [remotefilelog]
  > cachepath=$PWD/hgcache
  > debug=True
  > reponame = master
  > excludepattern=.hgtags
  > [extensions]
  > remotefilelog=
  > EOF

  $ cd shallow
  $ ls .hg/store/data
  ~2ehgtags.i
  $ hg tags
  tip                                1:6ce44dcfda68
  tag1                               0:e0360bc0d9e1
  $ hg update
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)

# pull with tags

  $ cd ../master
  $ hg tag tag2
  $ cd ../shallow
  $ hg pull
  pulling from ssh://user@dummy/master
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  new changesets 6a22dfa4fd34
  (run 'hg update' to get a working copy)
  $ hg tags
  tip                                2:6a22dfa4fd34
  tag2                               1:6ce44dcfda68
  tag1                               0:e0360bc0d9e1
  $ hg update
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ ls .hg/store/data
  ~2ehgtags.i

  $ hg log -l 1 --stat
  changeset:   2:6a22dfa4fd34
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Added tag tag2 for changeset 6ce44dcfda68
  
   .hgtags |  1 +
   1 files changed, 1 insertions(+), 0 deletions(-)