#!/bin/sh
# Print a version string.

# Traverse all tags,
# Find common ancestor of HEAD and tag,
# Count number of commits between this ancestor and HEAD
# Find tag with mininum count
# Produce a <tag>-<count>-g<hash> string a la git describe
H=$(git rev-parse --short HEAD)
CT=$(for F in $(git tag -l) ;do echo $(git rev-list $(git merge-base $F HEAD)..HEAD |wc -l) $F $H ;done | sort -n | head -n 1 )

echo $CT $H | awk '{print $2 "-" $1 "-g" $3}'