shelve: teach new shelf class to check if .shelve file exists
This removes the only remaining use for `shelvedfile`, so the class
now goes away.
Differential Revision: https://phab.mercurial-scm.org/D9713
#require no-windows
$ . "$TESTDIR/remotefilelog-library.sh"
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> server=True
> EOF
$ echo x > x
$ echo z > z
$ hg commit -qAm x1
$ echo x2 > x
$ echo z2 > z
$ hg commit -qAm x2
$ hg bookmark foo
$ cd ..
# prefetch a revision w/ a sparse checkout
$ hgcloneshallow ssh://user@dummy/master shallow --noupdate
streaming all changes
2 files to transfer, 527 bytes of data
transferred 527 bytes in 0.* seconds (*/sec) (glob)
searching for changes
no changes found
$ cd shallow
$ printf "[extensions]\nsparse=\n" >> .hg/hgrc
$ hg debugsparse -I x
$ hg prefetch -r 0
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ hg cat -r 0 x
x
$ hg debugsparse -I z
$ hg prefetch -r 0
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ hg cat -r 0 z
z
# prefetch sparse only on pull when configured
$ printf "[remotefilelog]\npullprefetch=bookmark()\n" >> .hg/hgrc
$ hg strip tip
saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/876b1317060d-b2e91d8d-backup.hg (glob)
$ hg debugsparse --delete z
$ clearcache
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
updating bookmark foo
added 1 changesets with 0 changes to 0 files
new changesets 876b1317060d
(run 'hg update' to get a working copy)
prefetching file contents
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
# Dont consider filtered files when doing copy tracing
## Push an unrelated commit
$ cd ../
$ hgcloneshallow ssh://user@dummy/master shallow2
streaming all changes
2 files to transfer, 527 bytes of data
transferred 527 bytes in 0.* seconds (*) (glob)
searching for changes
no changes found
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ cd shallow2
$ printf "[extensions]\nsparse=\n" >> .hg/hgrc
$ hg up -q 0
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
$ touch a
$ hg ci -Aqm a
$ hg push -q -f
## Pull the unrelated commit and rebase onto it - verify unrelated file was not
pulled
$ cd ../shallow
$ hg up -q 1
$ hg pull -q
$ hg debugsparse -I z
$ clearcache
$ hg prefetch -r '. + .^' -I x -I z
4 files fetched over 1 fetches - (4 misses, 0.00% hit ratio) over * (glob)
$ hg rebase -d 2 --keep
rebasing 1:876b1317060d foo "x2"