mirror of
https://github.com/facebook/sapling.git
synced 2024-10-11 17:27:53 +03:00
309229fdf5
Summary: While working on a stack, I noticed that `hg amend -e` would sometimes download a lot of history information. For a 4 files change, I saw 738 history entry fetched individually... Looking at the profile, this pointed towards remotefilectx.parents requesting the entire ancestormap. Since that function really only need the nodeinfo, let's only get that. Reviewed By: DurhamG Differential Revision: D17104263 fbshipit-source-id: fae1f673b2d2a641ae4f22d1099317cc5abd8447
161 lines
6.1 KiB
Perl
161 lines
6.1 KiB
Perl
$ setconfig extensions.treemanifest=!
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$ . "$TESTDIR/library.sh"
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$ hginit master
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$ cd master
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$ cat >> .hg/hgrc <<EOF
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> [remotefilelog]
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> server=True
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> serverexpiration=-1
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> EOF
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$ echo x > x
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$ echo y > y
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$ hg commit -qAm xy
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$ echo x >> x
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$ echo y >> y
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$ hg commit -qAm xy2
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$ cd ..
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$ hgcloneshallow ssh://user@dummy/master shallow -q
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob)
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Set the prefetchdays config to zero so that all commits are prefetched
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no matter what their creation date is.
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$ cd shallow
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$ cat >> .hg/hgrc <<EOF
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> [remotefilelog]
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> packlocaldata=True
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> localdatarepack=True
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> prefetchdays=0
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> EOF
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$ cd ..
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$ cd shallow
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$ findfilessorted $CACHEDIR/master
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$TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/aee31534993a501858fb6dd96a065671922e7d51
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$TESTTMP/hgcache/master/11/f6ad8ec52a2984abaafd7c3b516503785c2072/filename
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$TESTTMP/hgcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/d04f7aab46ef99f56ff77b65f696c719a647fc22
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$TESTTMP/hgcache/master/95/cb0bfd2977c761298d9624e4b4d4c72a39974a/filename
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$ hg repack
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$ findfilessorted $CACHEDIR/master
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histidx
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histpack
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$TESTTMP/hgcache/master/packs/ff17bece75c60ad09be6588d27d3f6e0ed5dd400.dataidx
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$TESTTMP/hgcache/master/packs/ff17bece75c60ad09be6588d27d3f6e0ed5dd400.datapack
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$TESTTMP/hgcache/master/packs/repacklock
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Create some new data to pack into it
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$ cd ../master
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$ echo a > a
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$ echo b > b
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$ hg commit -qAm ab
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$ echo a >> a
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$ echo b >> b
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$ hg commit -qAm ab2
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$ cd ../shallow
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$ hg pull -q
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$ hg up -q tip
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob)
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$ findfilessorted $CACHEDIR/master
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$TESTTMP/hgcache/master/86/f7e437faa5a7fce15d1ddcb9eaeaea377667b8/a80d06849b333b8a3d5c445f8ba3142010dcdc9e
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$TESTTMP/hgcache/master/86/f7e437faa5a7fce15d1ddcb9eaeaea377667b8/filename
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$TESTTMP/hgcache/master/e9/d71f5ee7c92d6dc9e92ffdad17b8bd49418f98/861f64b3905609e79fdbcf098c2ba5546fbc0789
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$TESTTMP/hgcache/master/e9/d71f5ee7c92d6dc9e92ffdad17b8bd49418f98/filename
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histidx
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histpack
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$TESTTMP/hgcache/master/packs/ff17bece75c60ad09be6588d27d3f6e0ed5dd400.dataidx
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$TESTTMP/hgcache/master/packs/ff17bece75c60ad09be6588d27d3f6e0ed5dd400.datapack
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$TESTTMP/hgcache/master/packs/repacklock
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Truncate the historypack file in the middle of the filename length for "y"
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$ chmod +w $TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histpack
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$ python $TESTDIR/truncate.py --size 173 $TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histpack
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Repack
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$ hg repack
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$ findfilessorted $CACHEDIR/master
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histidx
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$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440.histpack
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$TESTTMP/hgcache/master/packs/4033e474e920b8b5d47d0904080195064445cee8.dataidx
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$TESTTMP/hgcache/master/packs/4033e474e920b8b5d47d0904080195064445cee8.datapack
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$TESTTMP/hgcache/master/packs/8335018efaefd765d52fad1c07f44addc0371202.histidx
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$TESTTMP/hgcache/master/packs/8335018efaefd765d52fad1c07f44addc0371202.histpack
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$TESTTMP/hgcache/master/packs/repacklock
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The history for y has to be refetched from the server.
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$ hg log -f y -T '{desc}\n'
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deleting corrupt pack '$TESTTMP/hgcache/master/packs/37db2caec222ca26824a52d6bdc778344e0d1440'
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xy2
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xy
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2 files fetched over 2 fetches - (2 misses, 0.00% hit ratio) over 0.00s
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Next, do the same for local data. This time there is data loss, as there are no more copies
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of the data available.
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Create some local commits and pack them into a pack file
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$ echo m > m
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$ echo n > n
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$ echo o > o
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$ hg commit -qAm mno
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$ echo m >> m
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$ echo n >> n
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$ echo o >> o
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$ hg commit -qAm mno2
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$ hg repack
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Truncate the history in the middle of the filename length for "n"
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$ chmod +w .hg/store/packs/822f755410ca9f664d7c706957b8391248327318.histpack
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$ python $TESTDIR/truncate.py --size 173 .hg/store/packs/822f755410ca9f664d7c706957b8391248327318.histpack
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Truncate the data in the middle of the filename length for "o"
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$ chmod +w .hg/store/packs/f0a7036b83e36fd41dc1ea89cc67e6a01487f2cf.datapack
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$ python $TESTDIR/truncate.py --size 130 .hg/store/packs/f0a7036b83e36fd41dc1ea89cc67e6a01487f2cf.datapack
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Repack
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$ hg repack
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$ findfilessorted .hg/store/packs
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.hg/store/packs/822f755410ca9f664d7c706957b8391248327318.histidx
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.hg/store/packs/822f755410ca9f664d7c706957b8391248327318.histpack
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.hg/store/packs/f0a7036b83e36fd41dc1ea89cc67e6a01487f2cf.dataidx
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.hg/store/packs/f0a7036b83e36fd41dc1ea89cc67e6a01487f2cf.datapack
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The local data and history for m is still available
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$ hg cat m
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m
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m
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$ hg log -f m -T '{desc}\n'
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mno2
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mno
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The local data for n is still available
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$ hg cat n
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n
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n
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The history for n is lost
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$ hg log -qf n
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detected corrupt pack '$TESTTMP/shallow/.hg/store/packs/822f755410ca9f664d7c706957b8391248327318' - ignoring it
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abort: error downloading file contents:
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'connection closed early for filename n and node c972a0820002b32c6fec4b7ca47d3aecdad8e1c5'
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
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[255]
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The local data and history for o is lost
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$ hg cat -q o
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detected corrupt pack '$TESTTMP/shallow/.hg/store/packs/f0a7036b83e36fd41dc1ea89cc67e6a01487f2cf' - ignoring it
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abort: error downloading file contents:
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'connection closed early for filename o and node fd94f81d01bf8c9d960bb57abdd4e8375309ae43'
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over 0.00s
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[255]
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$ hg log -qf o
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detected corrupt pack '$TESTTMP/shallow/.hg/store/packs/822f755410ca9f664d7c706957b8391248327318' - ignoring it
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abort: error downloading file contents:
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'connection closed early for filename o and node fd94f81d01bf8c9d960bb57abdd4e8375309ae43'
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
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[255]
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