Wooder

extension TimeInterval {

    func asHoursMinutesSeconds () -> (Int, Int, Int) {
        let interval = Int(self)
        return ( interval / 3600, interval % 3600 / 60, (interval % 3600) % 60)
    }
    
    
    /// Creates a string with hours, minutes, seconds,
    /// divided by the given separator.

Wooder

import UIKit

extension UIApplication {
    
    static var applicationName: String {
        let mainBundle = NSBundle.mainBundle()
        let key = String(kCFBundleNameKey)
        let value = mainBundle.objectForInfoDictionaryKey(key) as? String
        return value ?? ""
    }

Wooder

MD5_HASH=`md5 -s "$1" | awk -F"=" '{print $2}' | xargs`
wget -O $1.jpg  https://www.gravatar.com/avatar/$MD5_HASH

Wooder

find . -path ./Pods -prune -o -name "*.swift" -print0 ! -name "/Pods" | xargs -0 wc -l

Wooder

#avoid problems with standard installation directory
sudo gem update cocoapods -n /usr/local/bin

#install certain version of cocoapods
sudo gem install cocoapods -v 1.2.0

Wooder

    private func urlEncodeString(_ string: String) -> String {
        #if swift(>=3.0)
            let allowedCharacterSet = (CharacterSet(charactersIn: "!*'();:@&=+$,/?%#[] ").inverted)
            if let escapedString = string.addingPercentEncoding(withAllowedCharacters: allowedCharacterSet) {
                return escapedString
            }
        #else
            let allowedCharacterSet = (NSCharacterSet(charactersInString: "!*'();:@&=+$,/?%#[] ").invertedSet)
            if let escapedString = string.stringByAddingPercentEncodingWithAllowedCharacters(allowedCharacterSet) {
                return escapedString

Wooder

    #if DEV
   fileprivate func isDebuggerAttached() -> Bool {
        var info = kinfo_proc()
        var mib : [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()]
        var size = MemoryLayout<kinfo_proc>.stride
        let junk = sysctl(&mib, UInt32(mib.count), &info, &size, nil, 0)
        assert(junk == 0, "sysctl failed")
        return (info.kp_proc.p_flag & P_TRACED) != 0
    }
    #endif

Wooder

### which shell is used?
echo  $SHELL
echo $0

Wooder

#autocorrect a single file
SCRIPT_INPUT_FILE_COUNT=1 SCRIPT_INPUT_FILE_0="Class.swift" swiftlint autocorrect --use-script-input-files

#show only swiftlint warnings
swiftlint 2>&1 | grep -i warning

Wooder

Date in current timezone as string:

let longDateString = Date().description(with: .current)

let shortDateString DateFormatter.localizedString(from: expiryDate, dateStyle: .medium, timeStyle: .short)