view tests/test-remotefilelog-bgprefetch.t @ 40975:2465e0b27a0d

run-tests: alias hg to hg.exe on Windows

To enable legacy stdio mode on Windows, hg.exe needs to be updated.  But before
that, we actually have to use it when running the tests.  I *think* what was
happening before was when MSYS invoked `hg`, it looked at the shbang line and
ran python.exe found there.  The test harness must be updating $PATH to include
the python used to launch it, and therefore it ran py3.  As a side note, this
also fixed `py -3 run-tests.py` (without --local), which complained about the
space in the shbang line before this.

This should also help in WSL, because the explicit '.exe' is needed to invoke a
Windows app instead of invoking the Linux app.

I have no idea why this change capitalizes Lib in the tests, as it was
previously lowercase for both py2 and py3.

#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 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
  added 1 changesets with 0 changes to 0 files
  updating bookmark foo
  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
  added 1 changesets with 0 changes to 0 files
  updating bookmark foo
  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
  $ 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/master/packs/repacklock
  $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
  $ 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/master/packs/repacklock
  $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
  $ 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/master/packs/repacklock
  $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)
  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/58147a5b5242-c3678817-rebase.hg (glob)
  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

# 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

  $ 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/master/packs/repacklock
  $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

  $ 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/master/packs/repacklock
  $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)