0001    //
0002    //  Env.swift
0003    //  Swiftline
0004    //
0005    //  Created by Omar Abdelhafith on 24/11/2015.
0006    //  Copyright © 2015 Omar Abdelhafith. All rights reserved.
0007    //
0008    
0009    import Darwin
0010    
0011    
0012    public class Env {
0013      
0014      /// Return the list of all the enviromenment keys passed to the script
0015      public static var keys
Env.swift:23
    return self.keys.map { self.get($0)! }
Env.swift:57
    self.keys
Env.swift:71
    return self.keys.contains(key)
Env.swift:92
    zip(self.keys, self.values).forEach(callback): [String] {
0016        let keyValues = run("env").stdout.componentsSeparatedByString("\n")
0017        let keys = keyValues.map { $0.componentsSeparatedByString("=").first! }.filter { !$0.isEmpty }
0018        return keys
0019      }
0020      
0021      /// Return the list of all the enviromenment values passed to the script
0022      public static var values
Env.swift:83
    return self.values.contains(value)
Env.swift:92
    zip(self.keys, self.values).forEach(callback): [String] {
0023        return self.keys.map { self.get($0)! }
0024      }
0025      
0026      /**
0027       Return the enviromenment for the provided key
0028       
0029       - parameter key: The enviromenment variable key
0030       
0031       - returns: The enviromenment variable value
0032       */
0033      public static func get
Env.swift:23
    return self.keys.map { self.get($0)! }(key: String) -> String? {
0034        let value = getenv(key)
0035        return String.fromCString(value)
0036      }
0037      
0038      /**
0039       Set a new value for the enviromenment variable
0040       
0041       - parameter key: The enviromenment variable key
0042       - parameter value: The enviromenment variable value
0043       */
0044      public static func set
Env.swift:60
      .forEach{ self.set($0!, nil) }(key: String, _ value: String?) {
0045        if let newValue = value {
0046          setenv(key, newValue, )
0047        } else {
0048          unsetenv(key)
0049        }
0050      }
0051      
0052      
0053      /**
0054       Clear all the enviromenment variables
0055       */
0056      public static func clear() {
0057        self.keys
0058          .map { String($0) }
0059          .filter { $0 != nil }
0060          .forEach{ self.set($0!, nil) }
0061      }
0062      
0063      /**
0064       Check if the enviromenment variable key exists
0065       
0066       - parameter key: The enviromenment variable key
0067       
0068       - returns: true if exists false otherwise
0069       */
0070      public static func hasKey(key: String) -> Bool {
0071        return self.keys.contains(key)
0072      }
0073      
0074      
0075      /**
0076       Check if the enviromenment variable value exists
0077       
0078       - parameter key: The enviromenment variable value
0079       
0080       - returns: true if exists false otherwise
0081       */
0082      public static func hasValue(value: String) -> Bool {
0083        return self.values.contains(value)
0084      }
0085      
0086      /**
0087       Iterate through the list of enviromenment variables
0088       
0089       - parameter callback: callback to call on each key/value pair
0090       */
0091      public static func eachPair(callback: (key: String, value: String) -> ()) {
0092        zip(self.keys, self.values).forEach(callback)
0093      }
0094      
0095    }
0096