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Bump a software project's VERSION, add the CHANGES, and tag with GIT
#!/bin/bash
# works with a file called VERSION in the current directory,
# the contents of which should be a semantic version number
# such as "1.2.3"
# this script will display the current version, automatically
# suggest a "minor" version update, and ask for input to use
# the suggestion, or a newly entered value.
# once the new version number is determined, the script will
# pull a list of changes from git history, prepend this to
# a file called CHANGES (under the title of the new version
# number) and create a GIT tag.
if [ -f VERSION ]; then
BASE_STRING=`cat VERSION`
BASE_LIST=(`echo $BASE_STRING | tr '.' ' '`)
V_MAJOR=${BASE_LIST[0]}
V_MINOR=${BASE_LIST[1]}
V_PATCH=${BASE_LIST[2]}
echo "Current version : $BASE_STRING"
V_MINOR=$((V_MINOR + 1))
V_PATCH=0
SUGGESTED_VERSION="$V_MAJOR.$V_MINOR.$V_PATCH"
read -p "Enter a version number [$SUGGESTED_VERSION]: " INPUT_STRING
if [ "$INPUT_STRING" = "" ]; then
INPUT_STRING=$SUGGESTED_VERSION
fi
echo "Will set new version to be $INPUT_STRING"
echo $INPUT_STRING > VERSION
echo "Version $INPUT_STRING:" > tmpfile
git log --pretty=format:" - %s" "v$BASE_STRING"...HEAD >> tmpfile
echo "" >> tmpfile
echo "" >> tmpfile
cat CHANGES >> tmpfile
mv tmpfile CHANGES
git add CHANGES VERSION
git commit -m "Version bump to $INPUT_STRING"
git tag -a -m "Tagging version $INPUT_STRING" "v$INPUT_STRING"
git push origin --tags
else
echo "Could not find a VERSION file"
read -p "Do you want to create a version file and start from scratch? [y]" RESPONSE
if [ "$RESPONSE" = "" ]; then RESPONSE="y"; fi
if [ "$RESPONSE" = "Y" ]; then RESPONSE="y"; fi
if [ "$RESPONSE" = "Yes" ]; then RESPONSE="y"; fi
if [ "$RESPONSE" = "yes" ]; then RESPONSE="y"; fi
if [ "$RESPONSE" = "YES" ]; then RESPONSE="y"; fi
if [ "$RESPONSE" = "y" ]; then
echo "0.1.0" > VERSION
echo "Version 0.1.0" > CHANGES
git log --pretty=format:" - %s" >> CHANGES
echo "" >> CHANGES
echo "" >> CHANGES
git add VERSION CHANGES
git commit -m "Added VERSION and CHANGES files, Version bump to v0.1.0"
git tag -a -m "Tagging version 0.1.0" "v0.1.0"
git push origin --tags
fi
fi
@ntoonio

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ntoonio commented Dec 13, 2016

Nice! But why should we have a VERSION file?

@feload

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feload commented Mar 16, 2017

Nice script! Thank you.

@j9t

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j9t commented Nov 11, 2018

Thank you!

A question, out of curiosity: Why did you decide to make the default bump up MINOR instead of PATCH? (I’ve found the latter more practical, to do MINOR and MAJOR bumps manually.)

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