mirror of
https://github.com/facebook/sapling.git
synced 2024-10-06 23:07:18 +03:00
d33d6a0cb5
I'm not entirely happy with using a trailing / on a "file" entry for transferring a treemanifest. We've discussed putting some flags on each file header[0], but I'm unconvinced that's actually any better: if we were going to add another feature to the cg format we'd still be doing a version bump anyway to cg4, so I'm inclined to not spend time coming up with a more sophisticated format until we actually know what the next feature we want to stuff in a changegroup will be. Test changes outside test-treemanifest.t are only due to the new CG3 bundlecap showing up in the wire protocol. Many thanks to adgar@google.com and martinvonz@google.com for helping me with various odd corners of the changegroup and treemanifest API. 0: It's not hard refactoring, nor is it a lot of work. I'm just disinclined to do speculative work when it's not clear what the customer would actually be.
467 lines
18 KiB
Perl
467 lines
18 KiB
Perl
Set up a server
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$ cat >> $HGRCPATH << EOF
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> [format]
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> usegeneraldelta=yes
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> EOF
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$ hg init server
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$ cd server
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$ cat >> .hg/hgrc << EOF
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> [extensions]
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> clonebundles =
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> EOF
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$ touch foo
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$ hg -q commit -A -m 'add foo'
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$ touch bar
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$ hg -q commit -A -m 'add bar'
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$ hg serve -d -p $HGPORT --pid-file hg.pid --accesslog access.log
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$ cat hg.pid >> $DAEMON_PIDS
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$ cd ..
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Feature disabled by default
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(client should not request manifest)
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$ hg clone -U http://localhost:$HGPORT feature-disabled
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requesting all changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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$ cat server/access.log
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* - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
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* - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
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* - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phase%2Cbookmarks (glob)
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* - - [*] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases (glob)
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$ cat >> $HGRCPATH << EOF
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> [experimental]
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> clonebundles = true
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> EOF
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Missing manifest should not result in server lookup
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$ hg --verbose clone -U http://localhost:$HGPORT no-manifest
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requesting all changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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$ tail -4 server/access.log
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* - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
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* - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
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* - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phase%2Cbookmarks (glob)
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* - - [*] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases (glob)
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Empty manifest file results in retrieval
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(the extension only checks if the manifest file exists)
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$ touch server/.hg/clonebundles.manifest
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$ hg --verbose clone -U http://localhost:$HGPORT empty-manifest
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no clone bundles available on remote; falling back to regular clone
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requesting all changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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Server advertises presence of feature to client requesting full clone
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$ hg --config experimental.clonebundles=false clone -U http://localhost:$HGPORT advertise-on-clone
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requesting all changes
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remote: this server supports the experimental "clone bundles" feature that should enable faster and more reliable cloning
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remote: help test it by setting the "experimental.clonebundles" config flag to "true"
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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Manifest file with invalid URL aborts
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$ echo 'http://does.not.exist/bundle.hg' > server/.hg/clonebundles.manifest
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$ hg clone http://localhost:$HGPORT 404-url
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applying clone bundle from http://does.not.exist/bundle.hg
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error fetching bundle: (.* not known|getaddrinfo failed) (re)
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abort: error applying bundle
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(if this error persists, consider contacting the server operator or disable clone bundles via "--config experimental.clonebundles=false")
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[255]
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Server is not running aborts
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$ echo "http://localhost:$HGPORT1/bundle.hg" > server/.hg/clonebundles.manifest
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$ hg clone http://localhost:$HGPORT server-not-runner
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applying clone bundle from http://localhost:$HGPORT1/bundle.hg
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error fetching bundle: * refused* (glob)
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abort: error applying bundle
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(if this error persists, consider contacting the server operator or disable clone bundles via "--config experimental.clonebundles=false")
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[255]
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Server returns 404
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$ python $TESTDIR/dumbhttp.py -p $HGPORT1 --pid http.pid
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$ cat http.pid >> $DAEMON_PIDS
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$ hg clone http://localhost:$HGPORT running-404
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applying clone bundle from http://localhost:$HGPORT1/bundle.hg
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HTTP error fetching bundle: HTTP Error 404: File not found
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abort: error applying bundle
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(if this error persists, consider contacting the server operator or disable clone bundles via "--config experimental.clonebundles=false")
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[255]
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We can override failure to fall back to regular clone
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$ hg --config ui.clonebundlefallback=true clone -U http://localhost:$HGPORT 404-fallback
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applying clone bundle from http://localhost:$HGPORT1/bundle.hg
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HTTP error fetching bundle: HTTP Error 404: File not found
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falling back to normal clone
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requesting all 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 2 changes to 2 files
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Bundle with partial content works
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$ hg -R server bundle --type gzip-v1 --base null -r 53245c60e682 partial.hg
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1 changesets found
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We verify exact bundle content as an extra check against accidental future
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changes. If this output changes, we could break old clients.
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$ f --size --hexdump partial.hg
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partial.hg: size=208
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0000: 48 47 31 30 47 5a 78 9c 63 60 60 98 17 ac 12 93 |HG10GZx.c``.....|
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0010: f0 ac a9 23 45 70 cb bf 0d 5f 59 4e 4a 7f 79 21 |...#Ep..._YNJ.y!|
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0020: 9b cc 40 24 20 a0 d7 ce 2c d1 38 25 cd 24 25 d5 |..@$ ...,.8%.$%.|
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0030: d8 c2 22 cd 38 d9 24 cd 22 d5 c8 22 cd 24 cd 32 |..".8.$."..".$.2|
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0040: d1 c2 d0 c4 c8 d2 32 d1 38 39 29 c9 34 cd d4 80 |......2.89).4...|
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0050: ab 24 b5 b8 84 cb 40 c1 80 2b 2d 3f 9f 8b 2b 31 |.$....@..+-?..+1|
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0060: 25 45 01 c8 80 9a d2 9b 65 fb e5 9e 45 bf 8d 7f |%E......e...E...|
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0070: 9f c6 97 9f 2b 44 34 67 d9 ec 8e 0f a0 92 0b 75 |....+D4g.......u|
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0080: 41 d6 24 59 18 a4 a4 9a a6 18 1a 5b 98 9b 5a 98 |A.$Y.......[..Z.|
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0090: 9a 18 26 9b a6 19 98 1a 99 99 26 a6 18 9a 98 24 |..&.......&....$|
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00a0: 26 59 a6 25 5a 98 a5 18 a6 24 71 41 35 b1 43 dc |&Y.%Z....$qA5.C.|
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00b0: 96 b0 83 f7 e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a |.....E..V....R..|
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00c0: 78 ed fc d5 76 f1 36 95 dc 05 07 00 ad 39 5e d3 |x...v.6......9^.|
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$ echo "http://localhost:$HGPORT1/partial.hg" > server/.hg/clonebundles.manifest
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$ hg clone -U http://localhost:$HGPORT partial-bundle
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applying clone bundle from http://localhost:$HGPORT1/partial.hg
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adding changesets
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adding manifests
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adding file changes
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added 1 changesets with 1 changes to 1 files
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finished applying clone bundle
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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 1 changesets with 1 changes to 1 files
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Incremental pull doesn't fetch bundle
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$ hg clone -r 53245c60e682 -U http://localhost:$HGPORT partial-clone
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adding changesets
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adding manifests
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adding file changes
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added 1 changesets with 1 changes to 1 files
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$ cd partial-clone
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$ hg pull
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pulling from http://localhost:$HGPORT/
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searching for changes
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adding changesets
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adding manifests
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adding file changes
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added 1 changesets with 1 changes to 1 files
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(run 'hg update' to get a working copy)
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$ cd ..
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Bundle with full content works
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$ hg -R server bundle --type gzip-v2 --base null -r tip full.hg
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2 changesets found
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Again, we perform an extra check against bundle content changes. If this content
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changes, clone bundles produced by new Mercurial versions may not be readable
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by old clients.
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$ f --size --hexdump full.hg
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full.hg: size=408
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0000: 48 47 32 30 00 00 00 0e 43 6f 6d 70 72 65 73 73 |HG20....Compress|
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0010: 69 6f 6e 3d 47 5a 78 9c 63 60 60 90 e5 76 f6 70 |ion=GZx.c``..v.p|
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0020: f4 73 77 75 0f f2 0f 0d 60 00 02 46 06 76 a6 b2 |.swu....`..F.v..|
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0030: d4 a2 e2 cc fc 3c 03 23 06 06 e6 7d 40 b1 4d c1 |.....<.#...}@.M.|
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0040: 2a 31 09 cf 9a 3a 52 04 b7 fc db f0 95 e5 a4 f4 |*1...:R.........|
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0050: 97 17 b2 c9 0c 14 00 02 e6 d9 99 25 1a a7 a4 99 |...........%....|
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0060: a4 a4 1a 5b 58 a4 19 27 9b a4 59 a4 1a 59 a4 99 |...[X..'..Y..Y..|
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0070: a4 59 26 5a 18 9a 18 59 5a 26 1a 27 27 25 99 a6 |.Y&Z...YZ&.''%..|
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0080: 99 1a 70 95 a4 16 97 70 19 28 18 70 a5 e5 e7 73 |..p....p.(.p...s|
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0090: 71 25 a6 a4 28 00 19 40 13 0e ac fa df ab ff 7b |q%..(..@.......{|
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00a0: 3f fb 92 dc 8b 1f 62 bb 9e b7 d7 d9 87 3d 5a 44 |?.....b......=ZD|
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00b0: ac 2f b0 a9 c3 66 1e 54 b9 26 08 a7 1a 1b 1a a7 |./...f.T.&......|
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00c0: 25 1b 9a 1b 99 19 9a 5a 18 9b a6 18 19 00 dd 67 |%......Z.......g|
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00d0: 61 61 98 06 f4 80 49 4a 8a 65 52 92 41 9a 81 81 |aa....IJ.eR.A...|
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00e0: a5 11 17 50 31 30 58 19 cc 80 98 25 29 b1 08 c4 |...P10X....%)...|
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00f0: 37 07 79 19 88 d9 41 ee 07 8a 41 cd 5d 98 65 fb |7.y...A...A.].e.|
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0100: e5 9e 45 bf 8d 7f 9f c6 97 9f 2b 44 34 67 d9 ec |..E.......+D4g..|
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0110: 8e 0f a0 61 a8 eb 82 82 2e c9 c2 20 25 d5 34 c5 |...a....... %.4.|
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0120: d0 d8 c2 dc d4 c2 d4 c4 30 d9 34 cd c0 d4 c8 cc |........0.4.....|
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0130: 34 31 c5 d0 c4 24 31 c9 32 2d d1 c2 2c c5 30 25 |41...$1.2-..,.0%|
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0140: 09 e4 ee 85 8f 85 ff 88 ab 89 36 c7 2a c4 47 34 |..........6.*.G4|
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0150: fe f8 ec 7b 73 37 3f c3 24 62 1d 8d 4d 1d 9e 40 |...{s7?.$b..M..@|
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0160: 06 3b 10 14 36 a4 38 10 04 d8 21 01 5a b2 83 f7 |.;..6.8...!.Z...|
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0170: e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a 78 ed fc d5 |.E..V....R..x...|
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0180: 76 f1 36 25 81 49 c0 ad 30 c0 0e 49 8f 54 b7 9e |v.6%.I..0..I.T..|
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0190: d4 1c 09 00 bb 8d f0 bd |........|
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$ echo "http://localhost:$HGPORT1/full.hg" > server/.hg/clonebundles.manifest
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$ hg clone -U http://localhost:$HGPORT full-bundle
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applying clone bundle from http://localhost:$HGPORT1/full.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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Feature works over SSH
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$ hg clone -U -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/server ssh-full-clone
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applying clone bundle from http://localhost:$HGPORT1/full.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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Entry with unknown BUNDLESPEC is filtered and not used
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://bad.entry1 BUNDLESPEC=UNKNOWN
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> http://bad.entry2 BUNDLESPEC=xz-v1
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> http://bad.entry3 BUNDLESPEC=none-v100
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> http://localhost:$HGPORT1/full.hg BUNDLESPEC=gzip-v2
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> EOF
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$ hg clone -U http://localhost:$HGPORT filter-unknown-type
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applying clone bundle from http://localhost:$HGPORT1/full.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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Automatic fallback when all entries are filtered
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://bad.entry BUNDLESPEC=UNKNOWN
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> EOF
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$ hg clone -U http://localhost:$HGPORT filter-all
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no compatible clone bundles available on server; falling back to regular clone
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(you may want to report this to the server operator)
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requesting all changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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URLs requiring SNI are filtered in Python <2.7.9
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$ cp full.hg sni.hg
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/sni.hg REQUIRESNI=true
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> http://localhost:$HGPORT1/full.hg
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> EOF
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#if sslcontext
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Python 2.7.9+ support SNI
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$ hg clone -U http://localhost:$HGPORT sni-supported
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applying clone bundle from http://localhost:$HGPORT1/sni.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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#else
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Python <2.7.9 will filter SNI URLs
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$ hg clone -U http://localhost:$HGPORT sni-unsupported
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applying clone bundle from http://localhost:$HGPORT1/full.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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#endif
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Stream clone bundles are supported
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$ hg -R server debugcreatestreamclonebundle packed.hg
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writing 613 bytes for 4 files
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bundle requirements: generaldelta, revlogv1
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No bundle spec should work
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/packed.hg
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> EOF
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$ hg clone -U http://localhost:$HGPORT stream-clone-no-spec
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applying clone bundle from http://localhost:$HGPORT1/packed.hg
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4 files to transfer, 613 bytes of data
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transferred 613 bytes in *.* seconds (*) (glob)
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finished applying clone bundle
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searching for changes
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no changes found
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Bundle spec without parameters should work
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1
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> EOF
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$ hg clone -U http://localhost:$HGPORT stream-clone-vanilla-spec
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applying clone bundle from http://localhost:$HGPORT1/packed.hg
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4 files to transfer, 613 bytes of data
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transferred 613 bytes in *.* seconds (*) (glob)
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finished applying clone bundle
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searching for changes
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no changes found
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Bundle spec with format requirements should work
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv1
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> EOF
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$ hg clone -U http://localhost:$HGPORT stream-clone-supported-requirements
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applying clone bundle from http://localhost:$HGPORT1/packed.hg
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4 files to transfer, 613 bytes of data
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transferred 613 bytes in *.* seconds (*) (glob)
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finished applying clone bundle
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searching for changes
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no changes found
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Stream bundle spec with unknown requirements should be filtered out
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv42
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> EOF
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$ hg clone -U http://localhost:$HGPORT stream-clone-unsupported-requirements
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no compatible clone bundles available on server; falling back to regular clone
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(you may want to report this to the server operator)
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requesting all changes
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adding changesets
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adding manifests
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adding file changes
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added 2 changesets with 2 changes to 2 files
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Set up manifest for testing preferences
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(Remember, the TYPE does not have to match reality - the URL is
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important)
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$ cp full.hg gz-a.hg
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$ cp full.hg gz-b.hg
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$ cp full.hg bz2-a.hg
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$ cp full.hg bz2-b.hg
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2 extra=a
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> http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2 extra=a
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> http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b
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> http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b
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> EOF
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Preferring an undefined attribute will take first entry
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$ hg --config experimental.clonebundleprefers=foo=bar clone -U http://localhost:$HGPORT prefer-foo
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applying clone bundle from http://localhost:$HGPORT1/gz-a.hg
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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 2 changes to 2 files
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finished applying clone bundle
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searching for changes
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no changes found
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Preferring bz2 type will download first entry of that type
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$ hg --config experimental.clonebundleprefers=COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-bz
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applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg
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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 2 changes to 2 files
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|
finished applying clone bundle
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searching for changes
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no changes found
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Preferring multiple values of an option works
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$ hg --config experimental.clonebundleprefers=COMPRESSION=unknown,COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-multiple-bz
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applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg
|
|
adding changesets
|
|
adding manifests
|
|
adding file changes
|
|
added 2 changesets with 2 changes to 2 files
|
|
finished applying clone bundle
|
|
searching for changes
|
|
no changes found
|
|
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Sorting multiple values should get us back to original first entry
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|
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$ hg --config experimental.clonebundleprefers=BUNDLESPEC=unknown,BUNDLESPEC=gzip-v2,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-multiple-gz
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applying clone bundle from http://localhost:$HGPORT1/gz-a.hg
|
|
adding changesets
|
|
adding manifests
|
|
adding file changes
|
|
added 2 changesets with 2 changes to 2 files
|
|
finished applying clone bundle
|
|
searching for changes
|
|
no changes found
|
|
|
|
Preferring multiple attributes has correct order
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|
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|
$ hg --config experimental.clonebundleprefers=extra=b,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-separate-attributes
|
|
applying clone bundle from http://localhost:$HGPORT1/bz2-b.hg
|
|
adding changesets
|
|
adding manifests
|
|
adding file changes
|
|
added 2 changesets with 2 changes to 2 files
|
|
finished applying clone bundle
|
|
searching for changes
|
|
no changes found
|
|
|
|
Test where attribute is missing from some entries
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|
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$ cat > server/.hg/clonebundles.manifest << EOF
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> http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2
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|
> http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2
|
|
> http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b
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> http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b
|
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> EOF
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|
|
|
$ hg --config experimental.clonebundleprefers=extra=b clone -U http://localhost:$HGPORT prefer-partially-defined-attribute
|
|
applying clone bundle from http://localhost:$HGPORT1/gz-b.hg
|
|
adding changesets
|
|
adding manifests
|
|
adding file changes
|
|
added 2 changesets with 2 changes to 2 files
|
|
finished applying clone bundle
|
|
searching for changes
|
|
no changes found
|