SDL/build-scripts/showrev.sh

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#!/bin/sh
#
# Print the current source revision, if available
SDL_ROOT=$(dirname $0)/..
cd $SDL_ROOT
if [ -x "$(command -v git)" ]; then
rev=$(echo "$(git remote get-url origin 2>/dev/null)@$(git rev-list HEAD~.. 2>/dev/null)")
if [ "$rev" != "@" ]; then
echo $rev
exit 0
fi
fi
if [ -x "$(command -v p4)" ]; then
rev="$(p4 changes -m1 ./...\#have 2>/dev/null| awk '{print $2}')"
if [ $? = 0 ]; then
echo $rev
exit 0
fi
fi
echo ""
exit 1