paulmaxgithub / swift-scripts

Some useful scripts for swift developers

Unused

unused.rb Searches for unused swift functions, and variable at specified path

Usage

cd <path-to-the-project>
<path-to-unused.sh>/unused.rb 

Output

 Item< func loadWebViewTos [private] from:File.swift:23:0>
Total items to be checked 4276
Total unique items to be checked 1697
Starting searching globally it can take a while
 Item< func applicationHasUnitTestTargetInjected [] from:AnotherFile.swift:31:0>
 Item< func getSelectedIds [] from: AnotherFile.swift:82:0>

Xcode integration

To integrate this into Xcode, simply add a "New Run Script Phase" and use the following code:

file="unused.rb"
if [ -f "$file" ]
then
echo "$file found."
ruby unused.rb xcode
else
echo "unused.rb doesn't exist"
fi

Xcode ~/project/Build Phases:

Code Example:

Known issues:

• Fully text search (no fancy stuff)
• A lot of false-positives (protocols, functions, objc interoop, System delegate methods)
• A lot of false-negatives (text search, yep)