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fncache: move fncache writing to be in a transaction...
fncache: move fncache writing to be in a transaction Previously the fncache was written at lock.release time. This meant it was not tracked by a transaction, and if an error occurred during the fncache write it would fail to update the fncache, but would not rollback the transaction, resulting in an fncache that was not in sync with the files on disk (which causes verify to fail, and causes streaming clones to not copy all the revlogs). This uses the new transaction backup mechanism to make the fncache transacted. It also moves the fncache from being written at lock.release time, to being written at transaction.close time.

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r20883:cd443c75 default
r20883:cd443c75 default
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test-fncache.t
238 lines | 7.1 KiB | text/troff | Tads3Lexer
Adrian Buehlmann
tests: unify test-fncache
r11865 Init repo1:
$ hg init repo1
$ cd repo1
$ echo "some text" > a
$ hg add
adding a
$ hg ci -m first
Adrian Buehlmann
tests: sort fncache
r13389 $ cat .hg/store/fncache | sort
Adrian Buehlmann
tests: unify test-fncache
r11865 data/a.i
Testing a.i/b:
$ mkdir a.i
$ echo "some other text" > a.i/b
$ hg add
Mads Kiilerich
tests: make (glob) on windows accept \ instead of /...
r15447 adding a.i/b (glob)
Adrian Buehlmann
tests: unify test-fncache
r11865 $ hg ci -m second
Adrian Buehlmann
tests: sort fncache
r13389 $ cat .hg/store/fncache | sort
Adrian Buehlmann
tests: unify test-fncache
r11865 data/a.i
data/a.i.hg/b.i
Testing a.i.hg/c:
$ mkdir a.i.hg
$ echo "yet another text" > a.i.hg/c
$ hg add
Mads Kiilerich
tests: make (glob) on windows accept \ instead of /...
r15447 adding a.i.hg/c (glob)
Adrian Buehlmann
tests: unify test-fncache
r11865 $ hg ci -m third
Adrian Buehlmann
tests: sort fncache
r13389 $ cat .hg/store/fncache | sort
Adrian Buehlmann
tests: unify test-fncache
r11865 data/a.i
Adrian Buehlmann
tests: sort fncache
r13389 data/a.i.hg.hg/c.i
Adrian Buehlmann
tests: unify test-fncache
r11865 data/a.i.hg/b.i
Testing verify:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 3 changesets, 3 total revisions
$ rm .hg/store/fncache
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
data/a.i@0: missing revlog!
data/a.i.hg/c.i@2: missing revlog!
data/a.i/b.i@1: missing revlog!
3 files, 3 changesets, 3 total revisions
3 integrity errors encountered!
(first damaged changeset appears to be 0)
Matt Mackall
tests: add exit codes to unified tests
r12316 [1]
Adrian Buehlmann
tests: unify test-fncache
r11865 $ cd ..
Non store repo:
$ hg --config format.usestore=False init foo
$ cd foo
$ mkdir tst.d
$ echo foo > tst.d/foo
$ hg ci -Amfoo
adding tst.d/foo
$ find .hg | sort
.hg
.hg/00changelog.i
.hg/00manifest.i
Mads Kiilerich
localrepo: update branchcache in a more reliable way...
r15886 .hg/cache
Brodie Rao
branchmap: cache open/closed branch head information...
r20185 .hg/cache/branch2-served
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/data
.hg/data/tst.d.hg
.hg/data/tst.d.hg/foo.i
.hg/dirstate
.hg/last-message.txt
Pierre-Yves David
phases: set new commit in 1-phase
r15483 .hg/phaseroots
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/requires
.hg/undo
Alexander Solovyov
fix bookmarks rollback behavior...
r14266 .hg/undo.bookmarks
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/undo.branch
.hg/undo.desc
.hg/undo.dirstate
Pierre-Yves David
phases: add rollback support
r15455 .hg/undo.phaseroots
Adrian Buehlmann
tests: unify test-fncache
r11865 $ cd ..
Non fncache repo:
$ hg --config format.usefncache=False init bar
$ cd bar
$ mkdir tst.d
$ echo foo > tst.d/Foo
$ hg ci -Amfoo
adding tst.d/Foo
$ find .hg | sort
.hg
.hg/00changelog.i
Mads Kiilerich
localrepo: update branchcache in a more reliable way...
r15886 .hg/cache
Brodie Rao
branchmap: cache open/closed branch head information...
r20185 .hg/cache/branch2-served
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/dirstate
.hg/last-message.txt
.hg/requires
.hg/store
.hg/store/00changelog.i
.hg/store/00manifest.i
.hg/store/data
.hg/store/data/tst.d.hg
.hg/store/data/tst.d.hg/_foo.i
Pierre-Yves David
phases: set new commit in 1-phase
r15483 .hg/store/phaseroots
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/store/undo
Pierre-Yves David
phases: add rollback support
r15455 .hg/store/undo.phaseroots
Alexander Solovyov
fix bookmarks rollback behavior...
r14266 .hg/undo.bookmarks
Adrian Buehlmann
tests: unify test-fncache
r11865 .hg/undo.branch
.hg/undo.desc
.hg/undo.dirstate
$ cd ..
Adrian Buehlmann
test-fncache: test reserved / long paths...
r17710 Encoding of reserved / long paths in the store
$ hg init r2
$ cd r2
$ cat <<EOF > .hg/hgrc
> [ui]
> portablefilenames = ignore
> EOF
Adrian Buehlmann
test-fncache: enable for Windows...
r17748 $ hg import -q --bypass - <<EOF
> # HG changeset patch
> # User test
> # Date 0 0
> # Node ID 1c7a2f7cb77be1a0def34e4c7cabc562ad98fbd7
> # Parent 0000000000000000000000000000000000000000
> 1
>
> 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
> new file mode 100644
> --- /dev/null
> +++ b/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz
> @@ -0,0 +1,1 @@
> +foo
> 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
> new file mode 100644
> --- /dev/null
> +++ b/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT
> @@ -0,0 +1,1 @@
> +foo
> diff --git a/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt
> new file mode 100644
> --- /dev/null
> +++ b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt
> @@ -0,0 +1,1 @@
> +foo
> 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
> new file mode 100644
> --- /dev/null
> +++ b/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c
> @@ -0,0 +1,1 @@
> +foo
> 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
> new file mode 100644
> --- /dev/null
> +++ b/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider
> @@ -0,0 +1,1 @@
> +foo
> EOF
Adrian Buehlmann
test-fncache: test reserved / long paths...
r17710 $ find .hg/store -name *.i | sort
.hg/store/00changelog.i
.hg/store/00manifest.i
.hg/store/data/bla.aux/pr~6e/_p_r_n/lpt/co~6d3/nu~6c/coma/foo._n_u_l/normal.c.i
.hg/store/dh/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxx168e07b38e65eff86ab579afaaa8e30bfbe0f35f.i
.hg/store/dh/au~78/second/x.prn/fourth/fi~3afth/sixth/seventh/eighth/nineth/tenth/loremia20419e358ddff1bf8751e38288aff1d7c32ec05.i
.hg/store/dh/enterpri/openesba/contrib-/corba-bc/netbeans/wsdlexte/src/main/java/org.net7018f27961fdf338a598a40c4683429e7ffb9743.i
.hg/store/dh/project_/resource/anotherl/followed/andanoth/andthenanextremelylongfilename0d8e1f4187c650e2f1fdca9fd90f786bc0976b6b.i
$ cd ..
Durham Goode
fncache: move fncache writing to be in a transaction...
r20883 Aborting lock does not prevent fncache writes
Adrian Buehlmann
test-fncache: test reserved / long paths...
r17710
Durham Goode
fncache: move fncache writing to be in a transaction...
r20883 $ cat > exceptionext.py <<EOF
> import os
> from mercurial import commands, util
> from mercurial.extensions import wrapfunction
>
> def lockexception(orig, vfs, lockname, wait, releasefn, acquirefn, desc):
> def releasewrap():
> raise util.Abort("forced lock failure")
> return orig(vfs, lockname, wait, releasewrap, acquirefn, desc)
>
> def reposetup(ui, repo):
> wrapfunction(repo, '_lock', lockexception)
>
> cmdtable = {}
>
> EOF
$ extpath=`pwd`/exceptionext.py
$ hg init fncachetxn
$ cd fncachetxn
$ printf "[extensions]\nexceptionext=$extpath\n" >> .hg/hgrc
$ touch y
$ hg ci -qAm y
abort: forced lock failure
[255]
$ cat .hg/store/fncache
data/y.i
Aborting transaction prevents fncache change
$ cat > ../exceptionext.py <<EOF
> import os
> from mercurial import commands, util, transaction
> from mercurial.extensions import wrapfunction
>
> def wrapper(orig, self, *args, **kwargs):
> origonclose = self.onclose
> def onclose():
> origonclose()
> raise util.Abort("forced transaction failure")
> self.onclose = onclose
> return orig(self, *args, **kwargs)
>
> def uisetup(ui):
> wrapfunction(transaction.transaction, 'close', wrapper)
>
> cmdtable = {}
>
> EOF
$ rm "${extpath}c"
$ touch z
$ hg ci -qAm z
transaction abort!
rollback completed
abort: forced transaction failure
[255]
$ cat .hg/store/fncache
data/y.i