Script to update version in Info.plist and app/build.gradle

versionUpdate.sh

#!/bin/sh
# bash script to update build number

# variables
PLIST=`find ./ios -name "Info.plist"`
GRADLE=`find ./android/app -name "build.gradle"`
BRANCH=`git symbolic-ref --short -q HEAD`

# announcement
echo
echo "This script should be run after a release has been pushed live on the app stores."

# check git branch
echo
if [[ "$BRANCH" != "dev" ]]; then 
    read -p "You are on the branch $BRANCH instead of dev - continue? "
else 
    echo "You are on the dev branch"
fi
echo

# check if git is clean
if [[ -z $(git status -s) ]]; then 
    echo "Git status is clean"
else 
    echo "Found some uncommitted files on your branch."
    git status -s
    read -p "Git is not clean, do you want to continue? "
fi
echo

# first update git 
echo
echo "Pulling from git to ensure you are up to date."
git pull
echo

# get current versions
echo "Getting current version numbers..."
androidVersion=`cat $GRADLE |grep -m1 "versionName" | cut -d'"' -f2 | tr -d ';' | tr -d ' '`
iosVersion=`plutil -p $PLIST|grep CFBundleShortVersionString | cut -d ">" -f2|cut -d'"' -f2`

# show current versions
echo "Current iOS Version: $iosVersion"
echo "Current Android Version: $androidVersion"
echo 
if [[ "$iosVersion" != "$androidVersion" ]]; then 
    read -p "Different versions detected, continue? "
else 
    echo "Versions are synchronized on iOS and Android"
fi

# tag state for release
echo
if [[ "$iosVersion" = "$androidVersion" ]]; then 
        read -p "Would you like to add a tag for the current release ($iosVersion) before updating? (y/n)? " answer
        # if echo "$answer" | grep -iq "^y" ;then
        if [[ "$answer" != "${answer#[Yy]}" ]] ;then # this grammar (the #[] operator) means that the variable $answer where any Y or y in 1st position will be dropped if they exist.
        echo "Adding git tag for release-$iosVersion"
        git tag release-$iosVersion
        fi
    else 
        echo "Since version numbers not synchronized, not adding a tag to Github for the current release."
fi
echo

# get new version from user input
echo
echo "Great, let's set a new version number."
read -p "Please enter the version number to set: " version
echo

# confirm new version change
read -p "Changing iOS and Android versions to $version - continue? "
echo 

# change to new version
echo "Changing version numbers..."
sed -i '' -e 's/'"$iosVersion"'/'"$version"'/g' $PLIST
sed -i '' -e 's/'"$androidVersion"'/'"$version"'/g' $GRADLE
echo

# get new versions
echo "Getting new version numbers..."
androidVersion=`cat $GRADLE |grep -m1 "versionName" | cut -d'"' -f2 | tr -d ';' | tr -d ' '`
iosVersion=`plutil -p $PLIST|grep CFBundleShortVersionString | cut -d ">" -f2|cut -d'"' -f2`

# display new versions
echo "New iOS Version: $iosVersion"
echo "New Android Version: $androidVersion"
echo 

# push new version to github
read -p "Would you like to push this new version to Github on the current branch? (y/n)? " answer
# if echo "$answer" | grep -iq "^y" ;then
if [[ "$answer" != "${answer#[Yy]}" ]] ;then # this grammar (the #[] operator) means that the variable $answer where any Y or y in 1st position will be dropped if they exist.
   git add $GRADLE 
   git add $PLIST
   git commit -m "Update ios plist and android gradle to $iosVersion"
   git push --tags && git push
fi
echo