debugrevspec: pass lookup function to visualize fallback mechanism
The next patch will move the exceptional parsing of old-style ranges
to revset.tokenize(). This patch will allow us to see the result tree.
Note that the parsing result of '-a-b-c-' is incorrect at this changeset.
It will be fixed soon.
gethgversion() {
make clean
make local || make local PURE=--pure
HG="$PWD/hg"
$HG version > /dev/null || { echo 'abort: hg version failed!'; exit 1 ; }
hgversion=`$HG version | sed -ne 's/.*(version \(.*\))$/\1/p'`
if echo $hgversion | grep -- '-' > /dev/null 2>&1; then
# nightly build case, version is like 1.3.1+250-20b91f91f9ca
version=`echo $hgversion | cut -d- -f1`
release=`echo $hgversion | cut -d- -f2 | sed -e 's/+.*//'`
else
# official tag, version is like 1.3.1
version=`echo $hgversion | sed -e 's/+.*//'`
release='0'
fi
}