Bump build number of Xcode project automatically

bump_build_number_per_build.sh

#!/bin/sh
# bump_build_number_per_build.sh
# @desc Automaticvally create build number depend on current time.
# @usage
# 1. Select: your Target in Xcode
# 2. Select: Build Phases Tab
# 3. Select: Add Build Phase -> Add Run Script
# 4. Paste code below in to new "Run Script" section
# 5. Drag the "Run Script" below "Link Binaries With Libraries"

# Year
YEAR=`date | awk '{print $6}'`

# Month
MONTH=`date | awk '{print $2}'`
case "$MONTH" in
    'Jan' | [Jj][Aa][Na])
        MONTHNUMBER=01
        ;;
    'Feb' |[Ff][Ee][Bb])
        MONTHNUMBER=02
        ;;
    'Mar' |[Mm][Aa][Rr])
        MONTHNUMBER=03
        ;;
    'Apr' |[Aa][Pp][Rr])
        MONTHNUMBER=04
        ;;
    'May' |[Mm][Aa][Yy])
        MONTHNUMBER=05
        ;;
    'Jun' |[Jj][Uu][Nn])
        MONTHNUMBER=06
        ;;
    'Jul' |[Jj][Uu][Ll])
        MONTHNUMBER=07
        ;;
    'Aug' |[Aa][Uu][Gg])
        MONTHNUMBER=08
        ;;
    'Sep' |[Ss][Ee][Pp])
        MONTHNUMBER=09
        ;;
    'Oct' |[Oo][Cc][Tt])
        MONTHNUMBER=10
        ;;
    'Nov' |[Nn][Oo][Vv])
        MONTHNUMBER=11
        ;;
    'Dec' |[Dd][Ee][Cc])
        MONTHNUMBER=12
        ;;
esac
echo "month $MONTHNUMBER"

# Date
DATE=`date | awk '{print $3}'`
if [[ DATE -lt 10 ]]; then
    DATE=0$DATE
fi

TIME=`date | awk '{print $4}'`
TIMEARRAY=$(echo $TIME | tr ":" "\n")
TIMENUMBER=""
for component in $TIMEARRAY
do
    TIMENUMBER=$TIMENUMBER$component
done

buildNumber=$YEAR$MONTHNUMBER$DATE$TIMENUMBER
echo "Final Build number is $buildNumber"

## Write buildNumber to the property list
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${PROJECT_DIR}/${INFOPLIST_FILE}"

Automatically bump build version when executing build operation.

usage

1. Select: your Target in Xcode
2. Select: Build Phases Tab
3. Select: Add Build Phase -> Add Run Script
4. Paste code below in to new "Run Script" section
5. Drag the "Run Script" below "Link Binaries With Libraries"

result

It will automatically modify the buildNumber property of info.Plist file like 20160802105320 if current time is Wed Aug 3 10:53:20 CST 2016.

reference

1. reference code.
2. A stackoverflow question.