dive/.scripts/tag.sh
2018-10-16 22:56:35 -04:00

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#!/bin/bash
set -u
BOLD=$(tput bold)
NORMAL=$(tput sgr0)
echo "${BOLD}Tagging${NORMAL}"
#get highest tag number
VERSION=`git describe --abbrev=0 --tags`
#replace . with space so can split into an array
VERSION_BITS=(${VERSION//./ })
#get number parts and increase last one by 1
VNUM1=${VERSION_BITS[0]}
VNUM2=${VERSION_BITS[1]}
VNUM3=${VERSION_BITS[2]}
VNUM3=$((VNUM3+1))
#create new tag
NEW_TAG="$VNUM1.$VNUM2.$VNUM3"
echo "Updating $VERSION to $NEW_TAG"
#get current hash and see if it already has a tag
GIT_COMMIT=`git rev-parse HEAD`
NEEDS_TAG=`git describe --contains $GIT_COMMIT`
#only tag if no tag already (would be better if the git describe command above could have a silent option)
if [ -z "$NEEDS_TAG" ]; then
echo "Tagged with $NEW_TAG (Ignoring fatal:cannot describe - this means commit is untagged) "
git tag $NEW_TAG
git push --tags
else
echo "Already a tag on this commit"
fi