mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 00:45:18 +03:00
98d9269874
Summary: Create a fork of the Mercurial code that we can use to build server rpms. The hg servers will continue to exist for a few more months while we move the darkstorm and ediscovery use cases off them. In the mean time, we want to start making breaking changes to the client, so let's create a stable copy of the hg code to produce rpms for the hg servers. The fork is based off c7770c78d, the latest hg release. This copies the files as is, then adds some minor tweaks to get it to build: - Disables some lint checks that appear to be bypassed by path - sed replace eden/scm with eden/hg-server - Removed a dependency on scm/telemetry from the edenfs-client tests since scm/telemetry pulls in the original eden/scm/lib/configparser which conflicts with the hg-server conflict parser. allow-large-files Reviewed By: quark-zju Differential Revision: D27632557 fbshipit-source-id: b2f442f4ec000ea08e4d62de068750832198e1f4
302 lines
6.5 KiB
Perl
302 lines
6.5 KiB
Perl
#chg-compatible
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$ configure modern
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$ setconfig format.use-symlink-atomic-write=1
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Enable writing to hgcommits/v1:
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$ setconfig format.use-zstore-commit-data=1 format.use-zstore-commit-data-revlog-fallback=1
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Test indexedlogdatapack
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$ . "$TESTDIR/library.sh"
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$ newrepo master
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$ setconfig remotefilelog.server=true remotefilelog.serverexpiration=-1
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$ cd $TESTTMP
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$ enable remotenames
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$ setconfig remotefilelog.debug=false remotefilelog.write-hgcache-to-indexedlog=true remotefilelog.fetchpacks=true
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$ setconfig diff.git=true experimental.narrow-heads=true mutation.record=true mutation.enabled=true mutation.date="0 0" visibility.enabled=1
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$ hgcloneshallow ssh://user@dummy/master shallow -q
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$ cd shallow
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Make some commits
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$ drawdag << 'EOS'
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> B C # amend: B -> C
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> |/
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> A
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> EOS
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When everything looks okay:
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$ hg doctor
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checking internal storage
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checking commit references
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Break the repo in various ways:
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$ mv $TESTTMP/hgcache/master/indexedlogdatastore/latest{,.bak}
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$ mv $TESTTMP/hgcache/master/manifests/indexedlogdatastore/latest{,.bak}
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#if symlink
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$ ln -s foo $TESTTMP/hgcache/master/indexedlogdatastore/latest
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$ ln -s foo $TESTTMP/hgcache/master/manifests/indexedlogdatastore/latest
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#else
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$ echo foo > $TESTTMP/hgcache/master/indexedlogdatastore/latest
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$ echo foo > $TESTTMP/hgcache/master/manifests/indexedlogdatastore/latest
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#endif
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$ echo y > $TESTTMP/hgcache/master/indexedlogdatastore/0/index2-node
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$ echo y > $TESTTMP/hgcache/master/manifests/indexedlogdatastore/0/index2-node
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$ mkdir -p .hg/store/mutation/
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$ echo v > .hg/store/mutation/log
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$ echo xx > .hg/store/metalog/blobs/index2-id
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$ rm .hg/store/metalog/roots/meta
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#if symlink
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$ ln -s foo .hg/store/metalog/roots/meta
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#else
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$ echo foo > .hg/store/metalog/roots/meta
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#endif
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$ rm .hg/store/hgcommits/v1/index2-id
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$ rm .hg/store/allheads/meta
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Check the repo is broken (exit code is non-zero):
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$ hg log -GpT '{desc}\n' &>/dev/null
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[255]
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Test that 'hg doctor' can fix them:
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$ hg doctor
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checking internal storage
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mutation: repaired
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hgcommits/v1: repaired
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metalog: repaired
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allheads: repaired
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revisionstore: repaired
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revisionstore: repaired
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checking commit references
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Check the repo is usable again:
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$ hg log -GpT '{desc}\n'
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o C
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│ diff --git a/C b/C
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│ new file mode 100644
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│ --- /dev/null
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│ +++ b/C
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│ @@ -0,0 +1,1 @@
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│ +C
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│ \ No newline at end of file
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│
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o A
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diff --git a/A b/A
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new file mode 100644
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--- /dev/null
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+++ b/A
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@@ -0,0 +1,1 @@
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+A
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\ No newline at end of file
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Check changelog repiar:
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$ newrepo
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$ drawdag << 'EOS'
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> C
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> |
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> B
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> |
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> A
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> EOS
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>>> with open(".hg/store/00changelog.i", "rb+") as f:
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... filelen = len(f.read())
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... x = f.seek(filelen - 64)
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... x = f.write(b"x" * 64)
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$ hg doctor
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checking internal storage
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changelog: corrupted at rev 2 (linkrev=2021161080)
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truncating 00changelog.i from 192 to 128 bytes
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truncating 00changelog.d from 165 to 110 bytes
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changelog: repaired
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visibleheads: removed 1 heads, added tip
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checking commit references
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$ hg log -Gr 'all()' -T '{desc}'
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o B
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│
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o A
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$ hg status
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Check unknown visibleheads format:
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$ newrepo
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$ hg dbsh << 'EOS'
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> ml = repo.svfs.metalog
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> ml.set("visibleheads", b"v-1")
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> ml.commit("break visibleheads")
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> EOS
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$ hg doctor
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checking internal storage
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visibleheads: removed 0 heads, added tip
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checking commit references
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Check dirstate pointing to a stripped commit:
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$ newrepo
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$ drawdag << 'EOS'
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> C
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> |
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> B
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> | # A/A2=2
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> A # A/A1=1
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> EOS
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$ hg up -q 'desc(A)'
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$ hg st
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$ hg mv A A0
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$ hg rm A1
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$ echo 3 > A2
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$ echo 1 > X
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$ hg add X
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$ hg up -q 'desc(B)'
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$ echo 4 > B
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$ echo 2 > Y
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$ hg add Y
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$ hg up -q 'desc(C)'
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$ echo 3 > Z
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$ hg add Z
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$ hg status -C
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M A2
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M B
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A A0
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A
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A X
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A Y
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A Z
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R A
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R A1
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(strip 2 commits while preserving the treestate)
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>>> with open(".hg/store/00changelog.i", "rb+") as f:
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... x = f.truncate(64) # only keep 1 commit: "A"
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XXX: The error message should be improved to indicate it is revlog and hg doctor might fix it.
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$ hg status
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abort: mmap length 192 is greater than file size 64
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[255]
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(hg doctor can fix dirstate/treestate)
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$ hg doctor
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checking internal storage
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visibleheads: removed 1 heads, added tip
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treestate: repaired
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checking commit references
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$ hg log -r . -T '{desc}\n'
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A
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(dirstate reverted to a previous state: B, C, X, Y, Z become unknown)
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(X might be unknown too)
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$ hg status -C
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M A2
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A A0
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A
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A X (?)
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R A
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R A1
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? B
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? C
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? X (?)
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? Y
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? Z
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Try other kinds of dirstate corruptions:
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>>> with open(".hg/dirstate", "rb+") as f:
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... x = f.seek(0)
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... x = f.write(b"x" * 1024)
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$ hg doctor
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checking internal storage
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treestate: repaired
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checking commit references
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$ hg status
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M A2
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A A0
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A X (?)
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R A
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R A1
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? B
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? C
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? X (?)
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? Y
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? Z
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Prepare new server repos
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$ newserver server
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$ clone server client1
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$ cd client1
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$ drawdag << 'EOS'
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> B
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> |
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> A
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> EOS
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$ hg push -r $A --to master --create -q
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Test fixing master bookmark. Need the metalog (contains remotenames) to point
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to commits unknown to the changelog. To do it, we "fork" the repo, and "pull"
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on the forked repo, then replace the metalog from the old repo with the metalog
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in the new repo, while keeping changelog unchanged.
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$ cd $TESTTMP
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$ clone server client2
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$ hg push --cwd client1 -r $B --to master -q
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$ cp -R client2 client3
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$ hg pull --cwd client3 -q
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# Wipe it first, due to OSX disliking copying over symlinks
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$ rm -rf client2/.hg/store/metalog/*
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$ cp -R client3/.hg/store/metalog/* client2/.hg/store/metalog/
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$ cd client2
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$ hg doctor
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checking internal storage
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visibleheads: removed 0 heads, added tip
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checking commit references
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remote/master points to an unknown commit - trying to move it to a known commit
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setting remote/master to 426bada5c67598ca65036d57d9e4b64b0c1ce7a0
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$ hg log -GT '{desc}\n'
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@ A
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Test fixing broken segmented changelog (broken mutimeta)
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$ newrepo
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$ hg debugchangelog --migrate fullsegments
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$ drawdag << 'EOS'
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> B
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> |
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> A
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> EOS
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$ rm .hg/store/segments/v1/multimeta .hg/store/segments/v1/multimetalog/meta
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$ touch .hg/store/segments/v1/multimeta .hg/store/segments/v1/multimetalog/meta
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$ hg log -r tip 2>/dev/null 1>/dev/null
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[1]
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$ hg doctor
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checking internal storage
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segments/v1: repaired
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visibleheads: removed 1 heads, added tip
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checking commit references
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$ hg log -r tip -T '{desc}\n'
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B
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