phases: keep internal state as rev-num instead of node-id
Node-id are expensive to work with, dealing with revision is much simple and
faster.
The fact we still used node-id here shows how few effort have been put into
making the phase logic fast. We tend to no longer use node-id internally for
about ten years.
This has a large impact of repository with many draft roots. For example this
Mozilla-try copy have ½ Million draft roots and `perf::unbundle` see a
significant improvement.
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.perf.perf-unbundle
# bin-env-vars.hg.flavor = no-rust
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.issue6528 = disabled
# benchmark.variants.revs = last-1
before:: 1.746791 seconds
after:: 1.278379 seconds (-26.82%)
# benchmark.variants.revs = last-10
before:: 3.145774 seconds
after:: 2.103735 seconds (-33.13%)
# benchmark.variants.revs = last-100
before:: 3.487635 seconds
after:: 2.446749 seconds (-29.85%)
# benchmark.variants.revs = last-1000
before:: 5.007568 seconds
after:: 3.989923 seconds (-20.32%)
#!/bin/sh
#
# This is an example of using HGEDITOR to create of diff to review the
# changes while committing.
# If you want to pass your favourite editor some other parameters
# only for Mercurial, modify this:
case "${EDITOR}" in
"")
EDITOR="vi"
;;
emacs)
EDITOR="$EDITOR -nw"
;;
gvim|vim)
EDITOR="$EDITOR -f -o"
;;
esac
HGTMP=""
cleanup_exit() {
rm -rf "$HGTMP"
}
# Remove temporary files even if we get interrupted
trap "cleanup_exit" 0 # normal exit
trap "exit 255" HUP INT QUIT ABRT TERM
HGTMP=$(mktemp -d ${TMPDIR-/tmp}/hgeditor.XXXXXX)
[ x$HGTMP != x -a -d $HGTMP ] || {
echo "Could not create temporary directory! Exiting." 1>&2
exit 1
}
(
grep '^HG: changed' "$1" | cut -b 13- | while read changed; do
"$HG" diff "$changed" >> "$HGTMP/diff"
done
)
cat "$1" > "$HGTMP/msg"
MD5=$(which md5sum 2>/dev/null) || \
MD5=$(which md5 2>/dev/null)
[ -x "${MD5}" ] && CHECKSUM=`${MD5} "$HGTMP/msg"`
if [ -s "$HGTMP/diff" ]; then
$EDITOR "$HGTMP/msg" "$HGTMP/diff" || exit $?
else
$EDITOR "$HGTMP/msg" || exit $?
fi
[ -x "${MD5}" ] && (echo "$CHECKSUM" | ${MD5} -c >/dev/null 2>&1 && exit 13)
mv "$HGTMP/msg" "$1"
exit $?