revlog: fix revlogio.packentry corner case
We want to store version information about the revlog in the first
entry of its index. The code in packentry was using some heuristics
to detect whether this was the first entry, but these heuristics could
fail in some cases (e.g. rev 0 was empty; rev 1 descends directly from
the nullid and is stored as a delta).
We now give the revision number to packentry to avoid heuristics.
#!/bin/sh
debugwalk()
{
echo "hg debugwalk $@"
hg debugwalk "$@"
echo
}
chdir()
{
echo "cd $@"
cd "$@"
echo
}
mkdir t
cd t
hg init
mkdir -p beans
for b in kidney navy turtle borlotti black pinto; do
echo $b > beans/$b
done
mkdir -p mammals/Procyonidae
for m in cacomistle coatimundi raccoon; do
echo $m > mammals/Procyonidae/$m
done
echo skunk > mammals/skunk
echo fennel > fennel
echo fenugreek > fenugreek
echo fiddlehead > fiddlehead
echo glob:glob > glob:glob
hg addremove
hg commit -m "commit #0" -d "1000000 0"
debugwalk
debugwalk -I.
chdir mammals
debugwalk
debugwalk -X ../beans
debugwalk -I '*k'
debugwalk -I 'glob:*k'
debugwalk -I 'relglob:*k'
debugwalk -I 'relglob:*k' .
debugwalk -I 're:.*k$'
debugwalk -I 'relre:.*k$'
debugwalk -I 'path:beans'
debugwalk -I 'relpath:../beans'
debugwalk .
debugwalk -I.
debugwalk Procyonidae
chdir Procyonidae
debugwalk .
debugwalk ..
chdir ..
debugwalk ../beans
debugwalk .
debugwalk .hg
debugwalk ../.hg
chdir ..
debugwalk -Ibeans
debugwalk 'glob:mammals/../beans/b*'
debugwalk '-X*/Procyonidae' mammals
debugwalk path:mammals
debugwalk ..
debugwalk beans/../..
debugwalk .hg
debugwalk beans/../.hg
debugwalk beans/../.hg/data
debugwalk beans/.hg
# Don't know how to test absolute paths without always getting a false
# error.
#debugwalk `pwd`/beans
#debugwalk `pwd`/..
debugwalk glob:\*
debugwalk 'glob:**e'
debugwalk 're:.*[kb]$'
debugwalk path:beans/black
debugwalk path:beans//black
debugwalk relglob:Procyonidae
debugwalk 'relglob:Procyonidae/**'
debugwalk 'relglob:Procyonidae/**' fennel
debugwalk beans 'glob:beans/*'
debugwalk 'glob:mamm**'
debugwalk 'glob:mamm**' fennel
debugwalk 'glob:j*'
debugwalk NOEXIST
mkfifo fifo
debugwalk fifo
rm fenugreek
debugwalk fenugreek
hg rm fenugreek
debugwalk fenugreek
touch new
debugwalk new
chdir ..
debugwalk -R t t/mammals/skunk
mkdir t2
chdir t2
debugwalk -R ../t ../t/mammals/skunk
debugwalk --cwd ../t mammals/skunk