Xcode script to increment build based on version

Question

I've managed to reproduce a build phase script from this SO question which increments the build number every time I build the app. Can anyone suggest how the script should look if I want the build number to be version.build, i.e. if my app version is 0.2, I'd like my build number to be set to 0.2.001, 0.2.002, etc. Then, when I change my build number to 0.3, I want the builds to restart to 001, so I get 0.3.001, 0.3.002, etc.

Here's my current script:

buildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "$INFOPLIST_FILE")
buildNumber=$(($buildNumber + 1))
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$INFOPLIST_FILE"

UPDATE

What I'm trying to do is the following:

• Get the shortVersion from plist file (e.x. 0.2)
• Get the buildNumber from plist file (e.x. 0.2.007)
• Separate the buildNumber into 0.2 and 007
• If 0.2 equals shortVersion, just increment 007 -> 008 and join the two again so the new buildNumber is 0.2.008
• Else (e.x. shortVersion has been changed to 0.3), reset the build number to 001 and join the two together to get the new buildNumber as 0.3.001

Unfortunately, I know nothing about bash scripting, so I'd be grateful if someone can provide the script.

Answer 1

#!/bin/bash

# get the configuration
conf=${CONFIGURATION}

# only change build number if we are building for Release or AdHoc!
if [ $conf == Release ] || [ $conf == AdHoc ]; then

# get the build number
buildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "$INFOPLIST_FILE")
echo "Old Build number $buildNumber"

# split it by dots
arrIN=(${buildNumber//\./ })

# get the last element position
lastElementPosition=$((${#arrIN[@]} - 1))
# get the minor version from the last array element
minorVersion=${arrIN[${lastElementPosition}]}
# Increase it by 1
minorVersion=$((minorVersion+1))
# Format it as 3 digit
minorVersion=`printf "%03d" $minorVersion`
echo "New minor version $minorVersion"
# Update it on the array
arrIN[$lastElementPosition]=$minorVersion

# construct the build number now by joining the array
buildNumber=$(IFS=. ; echo "${arrIN[*]}")

echo "New Build number $buildNumber"

#update it in plist
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$INFOPLIST_FILE"

fi

This is the script you want. Everything is explained on the code, so you should see what I'm doing

References for bash functions used in the above script:

Splitting string from: https://stackoverflow.com/a/5257398/312312

Padding number from: https://stackoverflow.com/a/8789779/312312

Joining array from: https://stackoverflow.com/a/9429887/312312