#require no-windows

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

# devel.remotefilelog.ensurestart: reduce race condition with

# waiton{repack/prefetch}

  $ cat >> $HGRCPATH <<EOF

  > [devel]

  > remotefilelog.ensurestart=True

  > EOF

  $ hg init master

  $ cd master

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > server=True

  > EOF

  $ echo x > x

  $ echo z > z

  $ hg commit -qAm x

  $ echo x2 > x

  $ echo y > y

  $ hg commit -qAm y

  $ echo w > w

  $ rm z

  $ hg commit -qAm w

  $ hg bookmark foo

  $ cd ..

# clone the repo

  $ hgcloneshallow ssh://user@dummy/master shallow --noupdate

  streaming all changes

  2 files to transfer, 776 bytes of data

  transferred 776 bytes in * seconds (*/sec) (glob)

  searching for changes

  no changes found

# Set the prefetchdays config to zero so that all commits are prefetched

# no matter what their creation date is. Also set prefetchdelay config

# to zero so that there is no delay between prefetches.

  $ cd shallow

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > prefetchdays=0

  > prefetchdelay=0

  > EOF

  $ cd ..

# prefetch a revision

  $ cd shallow

  $ hg prefetch -r 0

  2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)

  $ hg cat -r 0 x

  x

# background prefetch on pull when configured

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > pullprefetch=bookmark()

  > backgroundprefetch=True

  > EOF

  $ hg strip tip

  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/6b4b6f66ef8c-b4b8bdaf-backup.hg (glob)

  $ 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 6b4b6f66ef8c

  (run 'hg update' to get a working copy)

  prefetching file contents

  $ sleep 0.5

  $ hg debugwaitonprefetch >/dev/null 2>%1

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/ef95c5376f34698742fe34f315fd82136f8f68c0

  $TESTTMP/hgcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/076f5e2225b3ff0400b98c92aa6cdf403ee24cca

  $TESTTMP/hgcache/master/af/f024fe4ab0fece4091de044c58c9ae4233383a/bb6ccd5dceaa5e9dc220e0dad65e051b94f69a2c

  $TESTTMP/hgcache/repos

# background prefetch with repack on pull when configured

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > backgroundrepack=True

  > EOF

  $ hg strip tip

  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/6b4b6f66ef8c-b4b8bdaf-backup.hg (glob)

  $ 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 6b4b6f66ef8c

  (run 'hg update' to get a working copy)

  prefetching file contents

  $ sleep 0.5

  $ hg debugwaitonprefetch >/dev/null 2>%1

  $ sleep 0.5

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 0.5

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/packs/6e8633deba6e544e5f8edbd7b996d6e31a2c42ae.histidx

  $TESTTMP/hgcache/master/packs/6e8633deba6e544e5f8edbd7b996d6e31a2c42ae.histpack

  $TESTTMP/hgcache/master/packs/8ce5ab3745465ab83bba30a7b9c295e0c8404652.dataidx

  $TESTTMP/hgcache/master/packs/8ce5ab3745465ab83bba30a7b9c295e0c8404652.datapack

  $TESTTMP/hgcache/repos

# background prefetch with repack on update when wcprevset configured

  $ clearcache

  $ hg up -r 0

  2 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)

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/1406e74118627694268417491f018a4a883152f0

  $TESTTMP/hgcache/master/39/5df8f7c51f007019cb30201c49e884b46b92fa/69a1b67522704ec122181c0890bd16e9d3e7516a

  $TESTTMP/hgcache/repos

  $ hg up -r 1

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  2 files fetched over 2 fetches - (2 misses, 0.00% hit ratio) over *s (glob)

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > bgprefetchrevs=.::

  > EOF

  $ clearcache

  $ hg up -r 0

  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  * files fetched over * fetches - (* misses, 0.00% hit ratio) over *s (glob)

  $ sleep 1

  $ hg debugwaitonprefetch >/dev/null 2>%1

  $ sleep 1

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 1

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack

  $TESTTMP/hgcache/repos

# Ensure that file 'w' was prefetched - it was not part of the update operation and therefore

# could only be downloaded by the background prefetch

  $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:

  w:

  Node          Delta Base    Delta Length  Blob Size

  bb6ccd5dceaa  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  x:

  Node          Delta Base    Delta Length  Blob Size

  ef95c5376f34  000000000000  3             3

  1406e7411862  ef95c5376f34  14            2

  Total:                      17            5         (240.0% bigger)

  y:

  Node          Delta Base    Delta Length  Blob Size

  076f5e2225b3  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  z:

  Node          Delta Base    Delta Length  Blob Size

  69a1b6752270  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

# background prefetch with repack on commit when wcprevset configured

  $ cat >> .hg/hgrc <<EOF

  > [remotefilelog]

  > bgprefetchrevs=0::

  > EOF

  $ clearcache

  $ find $CACHEDIR -type f | sort

  $ echo b > b

  $ hg commit -qAm b

  * files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob)

  $ hg bookmark temporary

  $ sleep 1

  $ hg debugwaitonprefetch >/dev/null 2>%1

  $ sleep 1

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 1

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack

  $TESTTMP/hgcache/repos

# Ensure that file 'w' was prefetched - it was not part of the commit operation and therefore

# could only be downloaded by the background prefetch

  $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:

  w:

  Node          Delta Base    Delta Length  Blob Size

  bb6ccd5dceaa  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  x:

  Node          Delta Base    Delta Length  Blob Size

  ef95c5376f34  000000000000  3             3

  1406e7411862  ef95c5376f34  14            2

  Total:                      17            5         (240.0% bigger)

  y:

  Node          Delta Base    Delta Length  Blob Size

  076f5e2225b3  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  z:

  Node          Delta Base    Delta Length  Blob Size

  69a1b6752270  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

# background prefetch with repack on rebase when wcprevset configured

  $ hg up -r 2

  3 files updated, 0 files merged, 3 files removed, 0 files unresolved

  (leaving bookmark temporary)

  $ clearcache

  $ find $CACHEDIR -type f | sort

  $ hg rebase -s temporary -d foo

  rebasing 3:58147a5b5242 "b" (temporary tip)

  3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over *s (glob)

  $ sleep 1

  $ hg debugwaitonprefetch >/dev/null 2>%1

  $ sleep 1

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 1

# Ensure that file 'y' was prefetched - it was not part of the rebase operation and therefore

# could only be downloaded by the background prefetch

  $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:

  w:

  Node          Delta Base    Delta Length  Blob Size

  bb6ccd5dceaa  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  x:

  Node          Delta Base    Delta Length  Blob Size

  ef95c5376f34  000000000000  3             3

  1406e7411862  ef95c5376f34  14            2

  Total:                      17            5         (240.0% bigger)

  y:

  Node          Delta Base    Delta Length  Blob Size

  076f5e2225b3  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  z:

  Node          Delta Base    Delta Length  Blob Size

  69a1b6752270  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

# Check that foregound prefetch with no arguments blocks until background prefetches finish

  $ hg up -r 3

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ clearcache

  $ hg prefetch --repack

  waiting for lock on prefetching in $TESTTMP/shallow held by process * on host * (glob) (?)

  got lock after * seconds (glob) (?)

  (running background incremental repack)

  * files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob) (?)

  $ sleep 0.5

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 0.5

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack

  $TESTTMP/hgcache/repos

# Ensure that files were prefetched

  $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:

  w:

  Node          Delta Base    Delta Length  Blob Size

  bb6ccd5dceaa  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  x:

  Node          Delta Base    Delta Length  Blob Size

  ef95c5376f34  000000000000  3             3

  1406e7411862  ef95c5376f34  14            2

  Total:                      17            5         (240.0% bigger)

  y:

  Node          Delta Base    Delta Length  Blob Size

  076f5e2225b3  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  z:

  Node          Delta Base    Delta Length  Blob Size

  69a1b6752270  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

# Check that foreground prefetch fetches revs specified by '. + draft() + bgprefetchrevs + pullprefetch'

  $ clearcache

  $ hg prefetch --repack

  waiting for lock on prefetching in $TESTTMP/shallow held by process * on host * (glob) (?)

  got lock after * seconds (glob) (?)

  (running background incremental repack)

  * files fetched over 1 fetches - (* misses, 0.00% hit ratio) over *s (glob) (?)

  $ sleep 0.5

  $ hg debugwaitonrepack >/dev/null 2>%1

  $ sleep 0.5

  $ find $CACHEDIR -type f | sort

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histidx

  $TESTTMP/hgcache/master/packs/8f1443d44e57fec96f72fb2412e01d2818767ef2.histpack

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.dataidx

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407.datapack

  $TESTTMP/hgcache/repos

# Ensure that files were prefetched

  $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1`

  $TESTTMP/hgcache/master/packs/f4d50848e0b465e9bfd2875f213044c06cfd7407:

  w:

  Node          Delta Base    Delta Length  Blob Size

  bb6ccd5dceaa  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  x:

  Node          Delta Base    Delta Length  Blob Size

  ef95c5376f34  000000000000  3             3

  1406e7411862  ef95c5376f34  14            2

  Total:                      17            5         (240.0% bigger)

  y:

  Node          Delta Base    Delta Length  Blob Size

  076f5e2225b3  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

  z:

  Node          Delta Base    Delta Length  Blob Size

  69a1b6752270  000000000000  2             2

  Total:                      2             2         (0.0% bigger)

# Test that if data was prefetched and repacked we dont need to prefetch it again

# It ensures that Mercurial looks not only in loose files but in packs as well

  $ hg prefetch --repack

  (running background incremental repack)