mirror of
https://github.com/facebook/sapling.git
synced 2024-10-11 09:17:30 +03:00
0ca4acd250
Summary: Add the `storerequirements` feature to the repo. This means the store may have a `requires` file, and clients must check it for any store features that they may be missing. This allows new requirements to be added that affect the store when the repo is shared. Currently there are no store features. This commit adds support for the feature, and only new repos have the requirement added. A future commit will optimistically upgrade repos to include the requirement. Reviewed By: quark-zju Differential Revision: D9699156 fbshipit-source-id: 95c1ab6973d44c02abc69b78a15311fe6a8696fd
441 lines
12 KiB
Perl
441 lines
12 KiB
Perl
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Init repo1:
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$ hg init repo1
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$ cd repo1
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$ echo "some text" > a
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$ hg add
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adding a
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$ hg ci -m first
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$ cat .hg/store/fncache | sort
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data/a.i
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Testing a.i/b:
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$ mkdir a.i
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$ echo "some other text" > a.i/b
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$ hg add
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adding a.i/b
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$ hg ci -m second
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$ cat .hg/store/fncache | sort
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data/a.i
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data/a.i.hg/b.i
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Testing a.i.hg/c:
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$ mkdir a.i.hg
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$ echo "yet another text" > a.i.hg/c
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$ hg add
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adding a.i.hg/c
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$ hg ci -m third
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$ cat .hg/store/fncache | sort
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data/a.i
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data/a.i.hg.hg/c.i
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data/a.i.hg/b.i
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Testing verify:
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$ hg verify
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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3 files, 3 changesets, 3 total revisions
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$ rm .hg/store/fncache
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$ hg verify
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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warning: revlog 'data/a.i' not in fncache!
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warning: revlog 'data/a.i.hg/c.i' not in fncache!
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warning: revlog 'data/a.i/b.i' not in fncache!
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3 files, 3 changesets, 3 total revisions
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3 warnings encountered!
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hint: run "hg debugrebuildfncache" to recover from corrupt fncache
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Follow the hint to make sure it works
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$ hg debugrebuildfncache
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adding data/a.i
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adding data/a.i.hg/c.i
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adding data/a.i/b.i
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3 items added, 0 removed from fncache
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$ hg verify
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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3 files, 3 changesets, 3 total revisions
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$ cd ..
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Non store repo:
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$ hg --config format.usestore=False init foo
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$ cd foo
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$ mkdir tst.d
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$ echo foo > tst.d/foo
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$ hg ci -Amfoo
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adding tst.d/foo
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$ find .hg | sort
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.hg
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.hg/00changelog.i
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.hg/00manifest.i
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.hg/cache
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.hg/cache/branch2-served
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.hg/cache/rbc-names-v1
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.hg/cache/rbc-revs-v1
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.hg/data
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.hg/data/tst.d.hg
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.hg/data/tst.d.hg/foo.i
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.hg/dirstate
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.hg/last-message.txt
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.hg/phaseroots
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.hg/requires
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.hg/treestate
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.hg/treestate/* (glob)
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.hg/undo
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.hg/undo.backup.dirstate
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.hg/undo.backupfiles
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.hg/undo.bookmarks
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.hg/undo.branch
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.hg/undo.desc
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.hg/undo.dirstate
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.hg/undo.phaseroots
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$ cd ..
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Non fncache repo:
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$ hg --config format.usefncache=False init bar
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$ cd bar
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$ mkdir tst.d
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$ echo foo > tst.d/Foo
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$ hg ci -Amfoo
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adding tst.d/Foo
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$ find .hg | sort
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.hg
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.hg/00changelog.i
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.hg/cache
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.hg/cache/branch2-served
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.hg/cache/rbc-names-v1
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.hg/cache/rbc-revs-v1
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.hg/dirstate
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.hg/last-message.txt
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.hg/requires
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.hg/store
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.hg/store/00changelog.i
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.hg/store/00manifest.i
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.hg/store/data
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.hg/store/data/tst.d.hg
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.hg/store/data/tst.d.hg/_foo.i
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.hg/store/phaseroots
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.hg/store/requires
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.hg/store/undo
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.hg/store/undo.backupfiles
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.hg/store/undo.phaseroots
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.hg/treestate
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.hg/treestate/* (glob)
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.hg/undo.backup.dirstate
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.hg/undo.bookmarks
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.hg/undo.branch
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.hg/undo.desc
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.hg/undo.dirstate
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$ cd ..
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Encoding of reserved / long paths in the store
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$ hg init r2
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$ cd r2
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$ cat <<EOF > .hg/hgrc
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> [ui]
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> portablefilenames = ignore
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> EOF
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$ hg import -q --bypass - <<EOF
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> # HG changeset patch
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> # User test
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> # Date 0 0
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> # Node ID 1c7a2f7cb77be1a0def34e4c7cabc562ad98fbd7
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> # Parent 0000000000000000000000000000000000000000
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> 1
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>
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> diff --git a/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz b/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz
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> new file mode 100644
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> --- /dev/null
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> +++ b/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz
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> @@ -0,0 +1,1 @@
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> +foo
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> diff --git a/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT b/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT
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> new file mode 100644
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> --- /dev/null
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> +++ b/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT
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> @@ -0,0 +1,1 @@
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> +foo
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> diff --git a/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt
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> new file mode 100644
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> --- /dev/null
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> +++ b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt
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> @@ -0,0 +1,1 @@
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> +foo
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> diff --git a/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c b/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c
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> new file mode 100644
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> --- /dev/null
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> +++ b/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c
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> @@ -0,0 +1,1 @@
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> +foo
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> diff --git a/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider b/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider
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> new file mode 100644
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> --- /dev/null
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> +++ b/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider
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> @@ -0,0 +1,1 @@
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> +foo
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> EOF
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$ find .hg/store -name *.i | sort
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.hg/store/00changelog.i
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.hg/store/00manifest.i
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.hg/store/data/bla.aux/pr~6e/_p_r_n/lpt/co~6d3/nu~6c/coma/foo._n_u_l/normal.c.i
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.hg/store/dh/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxx168e07b38e65eff86ab579afaaa8e30bfbe0f35f.i
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.hg/store/dh/au~78/second/x.prn/fourth/fi~3afth/sixth/seventh/eighth/nineth/tenth/loremia20419e358ddff1bf8751e38288aff1d7c32ec05.i
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.hg/store/dh/enterpri/openesba/contrib-/corba-bc/netbeans/wsdlexte/src/main/java/org.net7018f27961fdf338a598a40c4683429e7ffb9743.i
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.hg/store/dh/project_/resource/anotherl/followed/andanoth/andthenanextremelylongfilename0d8e1f4187c650e2f1fdca9fd90f786bc0976b6b.i
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$ cd ..
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Aborting lock does not prevent fncache writes
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$ cat > exceptionext.py <<EOF
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> from __future__ import absolute_import
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> import os
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> from mercurial import commands, error, extensions
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>
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> def lockexception(orig, vfs, lockname, wait, releasefn, *args, **kwargs):
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> def releasewrap():
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> l.held = False # ensure __del__ is a noop
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> raise error.Abort("forced lock failure")
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> l = orig(vfs, lockname, wait, releasewrap, *args, **kwargs)
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> return l
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>
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> def reposetup(ui, repo):
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> extensions.wrapfunction(repo, '_lock', lockexception)
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>
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> cmdtable = {}
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>
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> # wrap "commit" command to prevent wlock from being '__del__()'-ed
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> # at the end of dispatching (for intentional "forced lcok failure")
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> def commitwrap(orig, ui, repo, *pats, **opts):
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> repo = repo.unfiltered() # to use replaced repo._lock certainly
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> wlock = repo.wlock()
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> try:
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> return orig(ui, repo, *pats, **opts)
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> finally:
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> # multiple 'relase()' is needed for complete releasing wlock,
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> # because "forced" abort at last releasing store lock
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> # prevents wlock from being released at same 'lockmod.release()'
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> for i in range(wlock.held):
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> wlock.release()
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>
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> def extsetup(ui):
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> extensions.wrapcommand(commands.table, "commit", commitwrap)
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> EOF
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$ extpath=`pwd`/exceptionext.py
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$ hg init fncachetxn
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$ cd fncachetxn
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$ printf "[extensions]\nexceptionext=$extpath\n" >> .hg/hgrc
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$ touch y
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$ hg ci -qAm y
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abort: forced lock failure
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[255]
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$ cat .hg/store/fncache
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data/y.i
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Aborting transaction prevents fncache change
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$ cat > ../exceptionext.py <<EOF
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> from __future__ import absolute_import
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> import os
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> from mercurial import commands, error, extensions, localrepo
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>
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> def wrapper(orig, self, *args, **kwargs):
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> tr = orig(self, *args, **kwargs)
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> def fail(tr):
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> raise error.Abort("forced transaction failure")
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> # zzz prefix to ensure it sorted after store.write
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> tr.addfinalize('zzz-forcefails', fail)
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> return tr
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>
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> def uisetup(ui):
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> extensions.wrapfunction(
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> localrepo.localrepository, 'transaction', wrapper)
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>
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> cmdtable = {}
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>
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> EOF
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Clean cached version
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$ rm -f "${extpath}c"
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$ rm -Rf "`dirname $extpath`/__pycache__"
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$ touch z
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$ hg ci -qAm z
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transaction abort!
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rollback completed
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abort: forced transaction failure
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[255]
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$ cat .hg/store/fncache
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data/y.i
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Aborted transactions can be recovered later
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$ cat > ../exceptionext.py <<EOF
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> from __future__ import absolute_import
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> import os
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> from mercurial import (
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> commands,
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> error,
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> extensions,
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> localrepo,
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> transaction,
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> )
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>
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> def trwrapper(orig, self, *args, **kwargs):
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> tr = orig(self, *args, **kwargs)
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> def fail(tr):
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> raise error.Abort("forced transaction failure")
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> # zzz prefix to ensure it sorted after store.write
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> tr.addfinalize('zzz-forcefails', fail)
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> return tr
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>
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> def abortwrapper(orig, self, *args, **kwargs):
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> raise error.Abort("forced transaction failure")
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>
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> def uisetup(ui):
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> extensions.wrapfunction(localrepo.localrepository, 'transaction',
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> trwrapper)
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> extensions.wrapfunction(transaction.transaction, '_abort',
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> abortwrapper)
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>
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> cmdtable = {}
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>
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> EOF
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Clean cached versions
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$ rm -f "${extpath}c"
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$ rm -Rf "`dirname $extpath`/__pycache__"
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$ hg up -q 1
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$ touch z
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$ hg ci -qAm z 2>/dev/null
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[255]
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$ cat .hg/store/fncache | sort
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data/y.i
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data/z.i
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$ hg recover
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rolling back interrupted transaction
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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1 files, 1 changesets, 1 total revisions
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$ cat .hg/store/fncache
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data/y.i
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$ cd ..
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debugrebuildfncache does nothing unless repo has fncache requirement
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$ hg --config format.usefncache=false init nofncache
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$ cd nofncache
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$ hg debugrebuildfncache
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(not rebuilding fncache because repository does not support fncache)
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$ cd ..
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debugrebuildfncache works on empty repository
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$ hg init empty
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$ cd empty
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$ hg debugrebuildfncache
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fncache already up to date
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$ cd ..
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debugrebuildfncache on an up to date repository no-ops
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$ hg init repo
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$ cd repo
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$ echo initial > foo
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$ echo initial > .bar
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$ hg commit -A -m initial
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adding .bar
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adding foo
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$ cat .hg/store/fncache | sort
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data/.bar.i
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data/foo.i
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$ hg debugrebuildfncache
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fncache already up to date
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debugrebuildfncache restores deleted fncache file
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$ rm -f .hg/store/fncache
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$ hg debugrebuildfncache
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adding data/.bar.i
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adding data/foo.i
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2 items added, 0 removed from fncache
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$ cat .hg/store/fncache | sort
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data/.bar.i
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data/foo.i
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Rebuild after rebuild should no-op
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$ hg debugrebuildfncache
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fncache already up to date
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A single missing file should get restored, an extra file should be removed
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$ cat > .hg/store/fncache << EOF
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> data/foo.i
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> data/bad-entry.i
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> EOF
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$ hg debugrebuildfncache
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removing data/bad-entry.i
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adding data/.bar.i
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1 items added, 1 removed from fncache
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$ cat .hg/store/fncache | sort
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data/.bar.i
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data/foo.i
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$ cd ..
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Try a simple variation without dotencode to ensure fncache is ignorant of encoding
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$ hg --config format.dotencode=false init nodotencode
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$ cd nodotencode
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$ echo initial > foo
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$ echo initial > .bar
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$ hg commit -A -m initial
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adding .bar
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adding foo
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$ cat .hg/store/fncache | sort
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data/.bar.i
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data/foo.i
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$ rm .hg/store/fncache
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$ hg debugrebuildfncache
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adding data/.bar.i
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adding data/foo.i
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2 items added, 0 removed from fncache
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$ cat .hg/store/fncache | sort
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data/.bar.i
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data/foo.i
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