Simple iOS Build Script

gistfile1.sh

#!/bin/sh

# Simple iOS build script
# Written by Aron Bury, 29/11/2011

appname="AwesomeApp"
target_name="$appname"
sdk="iphoneos"
certificate="iPhone Developer: Joe Blogs"

# To use as a fixed script use the first project_dir varirable. 
# If you are including it as a build step with Hudson, use the second variable passing in $WORKSPACE as the variable
#project_dir="$HOME/Documents/apps/$appname"
#projet_dir="$1/$appname"
build_location="$HOME/Builds/$appname"

#Create folder location for build files if they dont exist
if [ ! -d "$build_location" ]; then
    mkdir -p "$build_location"
fi

cd "$project_dir"

xcodebuild -target "$appname" OBJROOT="$build_location/obj.root" SYMROOT="$build_location/sym.root"

xcrun -sdk iphoneos PackageApplication -v "$build_location/sym.root/Release-iphoneos/$appname.app" -o "$build_location/$appname.ipa" --sign "$certificate"

Getting this Error:

The following build commands failed:
CompileSwift normal armv7
CompileSwiftSources normal armv7 com.apple.xcode.tools.swift.compiler
(2 failures)
xcrun: error: unable to find utility "PackageApplication", not a developer tool or in PATH