mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 00:45:18 +03:00
57cf49a88d
Summary: A future diff will add tree prefetching during changegroup creation. This requires access to the tree prefetch function from the shallowbundle class. let's move the prefetch functions onto the repo object in preparation for that. Reviewed By: quark-zju Differential Revision: D6873055 fbshipit-source-id: 18de0ee0f6ab566587509f9e23ebb2e5779ed1c8
496 lines
18 KiB
Perl
496 lines
18 KiB
Perl
There are three cases which are of interest in this test:
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- client remotefilelog enabled and the client repo is a shallowrepo
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In this case, the expectation is that the prefetch command will be able to
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prefetch both trees and files.
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- client remotefilelog enabled and the client repo is not a shallowrepo
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In this case, the expectation is that the prefetch command will be able to only
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prefetch trees.
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- client remotefilelog disabled
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In this case, the expectation is that the prefetch command will be able to only
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prefetch trees and will not be able to perform operations like repack which
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require remotefilelog.
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#testcases remotefilelog.true.shallowrepo.true remotefilelog.true.shallowrepo.false remotefilelog.false
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$ CACHEDIR=`pwd`/hgcache
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$ . "$TESTDIR/library.sh"
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$ hginit master
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$ cd master
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$ mkdir dir
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$ echo x > dir/x
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$ hg commit -qAm 'add x'
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$ mkdir subdir
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$ echo z > subdir/z
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$ hg commit -qAm 'add subdir/z'
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$ echo x >> dir/x
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$ hg commit -Am 'modify x'
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$ cat >> .hg/hgrc <<EOF
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> [extensions]
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> treemanifest=
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>
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> [remotefilelog]
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> server=True
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> name=master
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> cachepath=$CACHEDIR
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> usefastdatapack=True
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>
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> [fastmanifest]
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> usetree=True
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> usecache=False
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>
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> [treemanifest]
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> server=True
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> EOF
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$ cd ..
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#if remotefilelog.true.shallowrepo.true
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$ hgcloneshallow ssh://user@dummy/master client
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streaming all changes
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2 files to transfer, 749 bytes of data
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transferred 749 bytes in * seconds (*) (glob)
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searching for changes
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no changes found
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updating to branch default
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2 files updated, 0 files merged, 0 files removed, 0 files unresolved
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob)
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#else
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$ hg clone ssh://user@dummy/master client
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streaming all changes
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4 files to transfer, 952 bytes of data
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transferred 952 bytes in * seconds (*) (glob)
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searching for changes
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no changes found
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updating to branch default
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2 files updated, 0 files merged, 0 files removed, 0 files unresolved
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#endif
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$ cd master
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$ hg backfilltree
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$ cd ../client
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$ cat >> .hg/hgrc <<EOF
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> [extensions]
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> treemanifest=
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> fastmanifest=
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> [remotefilelog]
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> reponame = master
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> prefetchdays=0
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> cachepath = $CACHEDIR
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> [fastmanifest]
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> usetree = True
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> usecache = False
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> EOF
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#if remotefilelog.false
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$ cat >> .hg/hgrc <<EOF
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>
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> [extensions]
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> remotefilelog=!
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> EOF
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#endif
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Test prefetch
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$ hg prefetch -r '0 + 1 + 2'
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6 trees fetched over * (glob)
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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$ ls $CACHEDIR/master/packs/manifests
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29938257d506f677320d5abec8e34a1a9ed635fe.histidx
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29938257d506f677320d5abec8e34a1a9ed635fe.histpack
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8adc618d23082c0a5311a4bbf9ac08b9b9672471.dataidx
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8adc618d23082c0a5311a4bbf9ac08b9b9672471.datapack
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$ hg debugdatapack --config extensions.remotefilelog= \
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> --long $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/8adc618d23082c0a5311a4bbf9ac08b9b9672471:
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subdir:
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Node Delta Base Delta Length Blob Size
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ddb35f099a648a43a997aef53123bce309c794fd 0000000000000000000000000000000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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1be4ab2126dd2252dcae6be2aac2561dd3ddcda0 0000000000000000000000000000000000000000 95 (missing)
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76d6aab2edb46810b20fbdbd10fb4b 0000000000000000000000000000000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb5aaf93ca7d9062931b0f6a0d6db5 0000000000000000000000000000000000000000 95 (missing)
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dir:
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Node Delta Base Delta Length Blob Size
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bc0c2c938b929f98b1c31a8c5994396ebb096bf0 0000000000000000000000000000000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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ef362f8bbe8aa457b0cfc49f200cbeb7747984ed 0000000000000000000000000000000000000000 46 (missing)
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$ hg debughistorypack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/*.histidx
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Node P1 Node P2 Node Link Node Copy From
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60a7f7acb6bb 1be4ab2126dd 000000000000 bd6f9b289c01
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1be4ab2126dd ef362f8bbe8a 000000000000 f15c65c6e9bd
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ef362f8bbe8a 000000000000 000000000000 ecfb693caff5
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dir
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Node P1 Node P2 Node Link Node Copy From
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a18d21674e76 bc0c2c938b92 000000000000 bd6f9b289c01
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bc0c2c938b92 000000000000 000000000000 ecfb693caff5
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subdir
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Node P1 Node P2 Node Link Node Copy From
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ddb35f099a64 000000000000 000000000000 f15c65c6e9bd
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$ hg debugdatapack --config extensions.remotefilelog= \
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> --node ef362f8bbe8aa457b0cfc49f200cbeb7747984ed $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/8adc618d23082c0a5311a4bbf9ac08b9b9672471:
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Node Delta Base Delta SHA1 Delta Length
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ef362f8bbe8aa457b0cfc49f200cbeb7747984ed 0000000000000000000000000000000000000000 3b295111780498d177793f9228bf736b915f0255 46
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$ hg -R ../master debugindex ../master/.hg/store/00manifesttree.i
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rev offset length delta linkrev nodeid p1 p2
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0 0 47 -1 0 ef362f8bbe8a 000000000000 000000000000
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1 47 61 0 1 1be4ab2126dd ef362f8bbe8a 000000000000
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2 108 58 1 2 60a7f7acb6bb 1be4ab2126dd 000000000000
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$ hg -R ../master debugindex ../master/.hg/store/00manifest.i
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rev offset length delta linkrev nodeid p1 p2
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0 0 48 -1 0 ef362f8bbe8a 000000000000 000000000000
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1 48 62 0 1 1be4ab2126dd ef362f8bbe8a 000000000000
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2 110 59 1 2 60a7f7acb6bb 1be4ab2126dd 000000000000
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Test prefetch with base node (subdir/ shouldn't show up in the pack)
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$ rm -rf $CACHEDIR/master
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#if remotefilelog.true.shallowrepo.true
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Multiple trees are fetched in this case because the file prefetching code path
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requires tree manifest for the base commit.
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$ hg prefetch -r '2' --base '1'
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2 trees fetched over * (glob)
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2 trees fetched over * (glob)
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3 trees fetched over * (glob)
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
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$ ls $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/148e9eb32f473ea522c591c95be0f9e772be9675.dataidx
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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$TESTTMP/hgcache/master/packs/manifests/5f14647c5653622d4c2682648ec82c7193d2a9ab.dataidx
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#else
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$ hg prefetch -r '2' --base '1'
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2 trees fetched over * (glob)
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$ ls $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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#endif
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c:
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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Test auto prefetch during normal access
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$ rm -rf $CACHEDIR/master
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|| ( exit 1 ) is needed because ls on OSX and Linux exits differently
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$ ls $CACHEDIR/master/packs/manifests || ( exit 1 )
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* $ENOENT$ (glob)
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[1]
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$ hg log -r tip --stat --pager=off
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3 trees fetched over * (glob)
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2 trees fetched over * (glob)
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changeset: 2:bd6f9b289c01
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tag: tip
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user: test
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date: Thu Jan 01 00:00:00 1970 +0000
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summary: modify x
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dir/x | 1 +
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1 files changed, 1 insertions(+), 0 deletions(-)
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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$ ls $CACHEDIR/master/packs/manifests
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148e9eb32f473ea522c591c95be0f9e772be9675.dataidx
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148e9eb32f473ea522c591c95be0f9e772be9675.datapack
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3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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3fb59713808147bda39cbd97b9cd862406f5865c.datapack
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524ab81400c6bc8449e3e720d81f836ebacec539.histidx
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524ab81400c6bc8449e3e720d81f836ebacec539.histpack
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e5c44a5c1bbfd8841df1c6c4b7cca54536e016db.histidx
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e5c44a5c1bbfd8841df1c6c4b7cca54536e016db.histpack
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/148e9eb32f473ea522c591c95be0f9e772be9675
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$TESTTMP/hgcache/master/packs/manifests/148e9eb32f473ea522c591c95be0f9e772be9675:
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dir:
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Node Delta Base Delta Length Blob Size
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bc0c2c938b92 000000000000 43 (missing)
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subdir:
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Node Delta Base Delta Length Blob Size
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ddb35f099a64 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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1be4ab2126dd 000000000000 95 (missing)
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- Note that subdir/ is not downloaded again
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c:
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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Test that auto prefetch scans up the changelog for base trees
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$ rm -rf $CACHEDIR/master
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$ hg prefetch -r 'tip^'
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3 trees fetched over * (glob)
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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$ rm -rf $CACHEDIR/master
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$ hg prefetch -r tip
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3 trees fetched over * (glob)
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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- Only 2 of the 3 trees from tip^ are downloaded as part of --stat's fetch
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$ hg log -r tip --stat --pager=off > /dev/null
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2 trees fetched over * (glob)
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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Test auto prefetch during pull
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- Prefetch everything
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$ echo a >> a
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$ hg commit -Aqm 'draft commit that shouldnt affect prefetch'
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$ rm -rf $CACHEDIR/master
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$ hg pull --config treemanifest.pullprefetchcount=10 --traceback
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pulling from ssh://user@dummy/master
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searching for changes
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no changes found
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prefetching trees
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6 trees fetched over * (glob)
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/8adc618d23082c0a5311a4bbf9ac08b9b9672471:
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subdir:
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Node Delta Base Delta Length Blob Size
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ddb35f099a64 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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1be4ab2126dd 000000000000 95 (missing)
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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dir:
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Node Delta Base Delta Length Blob Size
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bc0c2c938b92 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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ef362f8bbe8a 000000000000 46 (missing)
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$ hg strip -q -r 'draft()'
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- Prefetch just the top manifest (but the full one)
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$ rm -rf $CACHEDIR/master
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$ hg pull --config treemanifest.pullprefetchcount=1 --traceback
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pulling from ssh://user@dummy/master
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searching for changes
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no changes found
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prefetching trees
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3 trees fetched over * (glob)
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/4ee15de76c068ec1c80e3e61f2c3c476a779078a:
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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subdir:
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Node Delta Base Delta Length Blob Size
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ddb35f099a64 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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- Prefetch commit 1 then minimally prefetch commit 2
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$ rm -rf $CACHEDIR/master
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$ hg prefetch -r 1
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3 trees fetched over * (glob)
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2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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$ ls $CACHEDIR/master/packs/manifests/*dataidx
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$TESTTMP/hgcache/master/packs/manifests/148e9eb32f473ea522c591c95be0f9e772be9675.dataidx
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$ hg pull --config treemanifest.pullprefetchcount=1 --traceback
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pulling from ssh://user@dummy/master
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searching for changes
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no changes found
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prefetching trees
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2 trees fetched over * (glob)
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$ ls $CACHEDIR/master/packs/manifests/*dataidx
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$TESTTMP/hgcache/master/packs/manifests/148e9eb32f473ea522c591c95be0f9e772be9675.dataidx
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c.dataidx
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$TESTTMP/hgcache/master/packs/manifests/3fb59713808147bda39cbd97b9cd862406f5865c:
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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Test prefetching certain revs during pull
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$ cd ../master
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$ echo x >> dir/x
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$ hg commit -qm "modify dir/x a third time"
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$ echo x >> dir/x
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$ hg commit -qm "modify dir/x a fourth time"
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$ cd ../client
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$ rm -rf $CACHEDIR/master
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$ hg pull --config treemanifest.pullprefetchrevs='tip~2'
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pulling from ssh://user@dummy/master
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searching for changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 0 changes to 0 files (remotefilelog.true.shallowrepo.true !)
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added 2 changesets with 2 changes to 1 files (no-remotefilelog.true.shallowrepo.true !)
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new changesets dece825f8add:cfacdcc4cee5
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(run 'hg update' to get a working copy)
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prefetching trees
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3 trees fetched over * (glob)
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/*.dataidx
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$TESTTMP/hgcache/master/packs/manifests/4ee15de76c068ec1c80e3e61f2c3c476a779078a:
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dir:
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Node Delta Base Delta Length Blob Size
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a18d21674e76 000000000000 43 (missing)
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subdir:
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Node Delta Base Delta Length Blob Size
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ddb35f099a64 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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60a7f7acb6bb 000000000000 95 (missing)
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- Test prefetching only the new tree parts for a commit who's parent tree is not
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- downloaded already. Note that subdir/z was not downloaded this time.
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$ hg pull --config treemanifest.pullprefetchrevs='tip'
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pulling from ssh://user@dummy/master
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searching for changes
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no changes found
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prefetching trees
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2 trees fetched over * (glob)
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$ hg debugdatapack --config extensions.remotefilelog= \
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> $CACHEDIR/master/packs/manifests/99050e724a9236121684523ba3f4db270e62fb58.dataidx
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$TESTTMP/hgcache/master/packs/manifests/99050e724a9236121684523ba3f4db270e62fb58:
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dir:
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Node Delta Base Delta Length Blob Size
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bf22bc15398b 000000000000 43 (missing)
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(empty name):
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Node Delta Base Delta Length Blob Size
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aa52a49be522 000000000000 95 (missing)
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Test that prefetch refills just part of a tree when the cache is deleted
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$ echo >> dir/x
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$ hg commit -m 'edit x locally'
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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$ rm -rf $CACHEDIR/master/*
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$ hg cat subdir/z
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3 trees fetched over * (glob)
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|
z
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1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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|
|
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Test prefetch non-parent commits with no base node (should fetch minimal
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trees - in this case 3 trees for commit 2, and 2 for commit 4 despite it having
|
|
3 directories)
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$ rm -rf $CACHEDIR/master
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$ hg prefetch -r '2 + 4'
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|
5 trees fetched over * (glob)
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|
3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
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|
|
|
Test repack option
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$ rm -rf $CACHEDIR/master
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|
|
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$ hg prefetch -r '0'
|
|
2 trees fetched over * (glob)
|
|
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
|
|
$ hg prefetch -r '2'
|
|
3 trees fetched over * (glob)
|
|
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
|
|
|
|
#if remotefilelog.false
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$ hg prefetch -r '4' --repack
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|
abort: repack requires remotefilelog extension
|
|
[255]
|
|
#else
|
|
$ hg prefetch -r '4' --repack
|
|
2 trees fetched over * (glob)
|
|
(running background incremental repack)
|
|
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob) (remotefilelog.true.shallowrepo.true !)
|
|
|
|
$ sleep 0.5
|
|
$ hg debugwaitonrepack
|
|
$ ls_l $CACHEDIR/master/packs/manifests | grep datapack | wc -l
|
|
\s*1 (re)
|
|
#endif
|
|
|
|
Test prefetching with no options works. The expectation is to prefetch the stuff
|
|
required for working with the draft commits which happens to be only revision 5
|
|
in this case.
|
|
|
|
$ rm -rf $CACHEDIR/master
|
|
|
|
#if remotefilelog.true.shallowrepo.true
|
|
The tree prefetching code path fetches no trees for revision 5. However, the
|
|
file prefetching code path fetches 1 file for revision 5 and while doing so,
|
|
also fetches 3 trees dealing with the tree manifest of the base revision 2.
|
|
|
|
$ hg prefetch
|
|
3 trees fetched over * (glob)
|
|
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
|
|
#else
|
|
The tree prefetching code path fetches no trees for revision 5. And there is no
|
|
prefetching of files in this test case.
|
|
$ hg prefetch
|
|
#endif
|
|
|
|
Running prefetch in the master repository should exit gracefully
|
|
|
|
$ cd ../master
|
|
$ hg prefetch
|