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Enable obsolete markers
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$ cat >> $HGRCPATH << EOF
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> [experimental]
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> evolution.createmarkers=True
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> [phases]
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> publish=False
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> EOF
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Build a repo with some cacheable bits:
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$ hg init a
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$ cd a
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$ echo a > a
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$ hg ci -qAm0
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$ hg tag t1
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$ hg book -i bk1
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$ hg branch -q b2
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$ hg ci -Am1
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$ hg tag t2
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$ echo dumb > dumb
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$ hg ci -qAmdumb
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$ hg debugobsolete b1174d11b69e63cb0c5726621a43c859f0858d7f
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obsoleted 1 changesets
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$ hg phase -pr t1
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$ hg phase -fsr t2
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Make a helper function to check cache damage invariants:
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- command output shouldn't change
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- cache should be present after first use
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- corruption/repair should be silent (no exceptions or warnings)
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- cache should survive deletion, overwrite, and append
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- unreadable / unwriteable caches should be ignored
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- cache should be rebuilt after corruption
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$ damage() {
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> CMD=$1
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> CACHE=.hg/cache/$2
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> CLEAN=$3
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> hg $CMD > before
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> test -f $CACHE || echo "not present"
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> echo bad > $CACHE
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> test -z "$CLEAN" || $CLEAN
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> hg $CMD > after
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> "$RUNTESTDIR/pdiff" before after || echo "*** overwrite corruption"
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> echo corruption >> $CACHE
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> test -z "$CLEAN" || $CLEAN
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> hg $CMD > after
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> "$RUNTESTDIR/pdiff" before after || echo "*** append corruption"
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> rm $CACHE
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> mkdir $CACHE
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|
> test -z "$CLEAN" || $CLEAN
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|
> hg $CMD > after
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> "$RUNTESTDIR/pdiff" before after || echo "*** read-only corruption"
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|
> test -d $CACHE || echo "*** directory clobbered"
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|
|
> rmdir $CACHE
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|
|
> test -z "$CLEAN" || $CLEAN
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|
> hg $CMD > after
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|
> "$RUNTESTDIR/pdiff" before after || echo "*** missing corruption"
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|
> test -f $CACHE || echo "not rebuilt"
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|
|
> }
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|
|
Beat up tags caches:
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|
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|
|
$ damage "tags --hidden" tags2
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|
|
$ damage tags tags2-visible
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|
$ damage "tag -f t3" hgtagsfnodes1
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|
Beat up branch caches:
|
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|
|
|
|
$ damage branches branch2-base "rm .hg/cache/branch2-[vs]*"
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|
|
$ damage branches branch2-served "rm .hg/cache/branch2-[bv]*"
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|
$ damage branches branch2-visible
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|
|
$ damage "log -r branch(.)" rbc-names-v1
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|
$ damage "log -r branch(default)" rbc-names-v1
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|
|
$ damage "log -r branch(b2)" rbc-revs-v1
|
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|
|
|
|
We currently can't detect an rbc cache with unknown names:
|
|
|
|
|
|
$ damage "log -qr branch(b2)" rbc-names-v1
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|
|
--- before * (glob)
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|
|
+++ after * (glob)
|
|
|
@@ -1,8 +?,0 @@ (glob)
|
|
|
-2:5fb7d38b9dc4
|
|
|
-3:60b597ffdafa
|
|
|
-4:b1174d11b69e
|
|
|
-5:6354685872c0
|
|
|
-6:5ebc725f1bef
|
|
|
-7:7b76eec2f273
|
|
|
-8:ef3428d9d644
|
|
|
-9:ba7a936bc03c
|
|
|
*** append corruption
|
|
|
|
