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
echo "[ui]" >> $HGRCPATH
echo "interactive=true" >> $HGRCPATH
echo "[extensions]" >> $HGRCPATH
echo "record=" >> $HGRCPATH
echo % help
hg help record
hg init a
cd a
echo % select no files
touch empty-rw
hg add empty-rw
hg record empty-rw<<EOF
n
EOF
echo; hg tip -p
echo % select files but no hunks
hg record empty-rw<<EOF
y
n
EOF
echo; hg tip -p
echo % record empty file
hg record -d '0 0' -m empty empty-rw<<EOF
y
y
EOF
echo; hg tip -p
echo % rename empty file
hg mv empty-rw empty-rename
hg record -d '1 0' -m rename<<EOF
y
EOF
echo; hg tip -p
echo % copy empty file
hg cp empty-rename empty-copy
hg record -d '2 0' -m copy<<EOF
y
EOF
echo; hg tip -p
echo % delete empty file
hg rm empty-copy
hg record -d '3 0' -m delete<<EOF
y
EOF
echo; hg tip -p
echo % add binary file
hg bundle --base -2 tip.bundle
hg add tip.bundle
hg record -d '4 0' -m binary<<EOF
y
EOF
echo; hg tip -p
echo % change binary file
hg bundle --base -2 tip.bundle
hg record -d '5 0' -m binary-change<<EOF
y
EOF
echo; hg tip -p
echo % rename and change binary file
hg mv tip.bundle top.bundle
hg bundle --base -2 top.bundle
hg record -d '6 0' -m binary-change-rename<<EOF
y
EOF
echo; hg tip -p
echo % add plain file
for i in 1 2 3 4 5 6 7 8 9 10; do
echo $i >> plain
done
hg add plain
hg record -d '7 0' -m plain plain<<EOF
y
y
EOF
echo; hg tip -p
echo % modify end of plain file
echo 11 >> plain
hg record -d '8 0' -m end plain <<EOF
y
y
EOF
echo % modify end of plain file, no EOL
hg tip --template '{node}' >> plain
hg record -d '9 0' -m noeol plain <<EOF
y
y
EOF
echo % modify end of plain file, add EOL
echo >> plain
hg record -d '10 0' -m eol plain <<EOF
y
y
y
EOF
echo % modify beginning, trim end, record both
rm plain
for i in 2 2 3 4 5 6 7 8 9 10; do
echo $i >> plain
done
hg record -d '10 0' -m begin-and-end plain <<EOF
y
y
y
EOF
echo; hg tip -p
echo % trim beginning, modify end
rm plain
for i in 4 5 6 7 8 9 10.new; do
echo $i >> plain
done
echo % record end
hg record -d '11 0' -m end-only plain <<EOF
y
n
y
EOF
echo; hg tip -p
echo % record beginning
hg record -d '12 0' -m begin-only plain <<EOF
y
y
EOF
echo; hg tip -p
echo % add to beginning, trim from end
rm plain
for i in 1 2 3 4 5 6 7 8 9; do
echo $i >> plain
done
echo % record end
hg record --traceback -d '13 0' -m end-again plain<<EOF
y
n
y
EOF
echo % add to beginning, middle, end
rm plain
for i in 1 2 3 4 5 5.new 5.reallynew 6 7 8 9 10 11; do
echo $i >> plain
done
echo % record beginning, middle
hg record -d '14 0' -m middle-only plain <<EOF
y
y
y
n
EOF
echo; hg tip -p
echo % record end
hg record -d '15 0' -m end-only plain <<EOF
y
y
EOF
echo; hg tip -p
mkdir subdir
cd subdir
echo a > a
hg ci -d '16 0' -Amsubdir
echo a >> a
hg record -d '16 0' -m subdir-change a <<EOF
y
y
EOF
echo; hg tip -p
echo a > f1
echo b > f2
hg add f1 f2
hg ci -mz -d '17 0'
echo a >> f1
echo b >> f2
echo % help, quit
hg record <<EOF
?
q
EOF
echo % skip
hg record <<EOF
s
EOF
echo % no
hg record <<EOF
n
EOF
echo % f, quit
hg record <<EOF
f
q
EOF
echo % s, all
hg record -d '18 0' -mx <<EOF
s
a
EOF
echo; hg tip -p
echo % f
hg record -d '19 0' -my <<EOF
f
EOF
echo; hg tip -p