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#!/bin/sh
#
# Usage: get-scala-revision [dir]
# Figures out current scala revision of a git clone.
#
# If no dir is given, current working dir is used.
[ -n "$1" ] && cd "$1"
# dev should be a tag at the merge-base of master and the
# most recent release.
if [ -z $(git tag -l dev) ]; then
# no dev tag available - this will generate dev-g<sha>
echo "dev-g$(git describe HEAD --abbrev=7 --always)"
else
# dev tag exists - this generates dev-NNNN-g<sha>
# where NNNN is the number of commits since dev.
git describe HEAD --abbrev=7 --match dev
fi
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