如何在我的应用程序中从 Xcode 获取环境变量
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How can I get an environment variable from Xcode in my app
提问by MUECKE446
I have installed the Xcode plugin for XcodeColors from robbie hanson. (see https://github.com/robbiehanson/XcodeColors)
我已经为 robbie hanson 的 XcodeColors 安装了 Xcode 插件。（见https://github.com/robbiehanson/XcodeColors）
If I test it in a playground
如果我在操场上测试
let dict = NSProcessInfo.processInfo().environment
let env = dict["XcodeColors"] as? String
envwould be "YES".
env将是“是”。
But, if I use the same code in my app, envwould be nil, because the app is running on their own process.
但是，如果我在我的应用程序中使用相同的代码，则env将为零，因为该应用程序在自己的进程上运行。
Because I would print out colored text with specific esc sequences only if the plugin is installed, I want get the information about the Xcode env var.
因为只有安装了插件，我才会用特定的 esc 序列打印出彩色文本，所以我想获取有关 Xcode env var 的信息。
How can I do that?
我怎样才能做到这一点？
回答by Imotep
Edit your scheme -> Select the "Run" section -> Select "Arguments" tab -> Add the environment variable.
编辑您的方案 -> 选择“运行”部分 -> 选择“参数”选项卡 -> 添加环境变量。
Be careful, environment variables are not set if you run the app without XCode.
请注意，如果您在没有 XCode 的情况下运行应用程序，则不会设置环境变量。
回答by Brian
I ran into the same problem with XcodeColors. I ended up solving it with a simple script build phase. It checks to see if XcodeColors is installed or not and sets/adds a key to the Info.plist in the build. So create a new "Run Script Build Phase" and put this in there:
我在使用 XcodeColors 时遇到了同样的问题。我最终用一个简单的脚本构建阶段解决了它。它检查是否安装了 XcodeColors 并在构建中为 Info.plist 设置/添加一个键。因此，创建一个新的“运行脚本构建阶段”并将其放在那里：
xcodeColorsDir="$USER_LIBRARY_DIR/Application Support/Developer/Shared/Xcode/Plugins/XcodeColors.xcplugin/"
xcodeColorsInstalled=0
if [ -d "$xcodeColorsDir" ]; then
# Directory exists, therefore, XcodeColors is installed
xcodeColorsInstalled=1
fi
infoPlistPath="${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"
existingValue=$(/usr/libexec/PlistBuddy -c "Print :XcodeColorsInstalled" "$infoPlistPath")
if [ -z "$existingValue" ]; then
# Key already exists so overwrite it
/usr/libexec/PlistBuddy -c "Add :XcodeColorsInstalled bool $xcodeColorsInstalled" "$infoPlistPath"
else
# Key doesn't exist yet
/usr/libexec/PlistBuddy -c "Set :XcodeColorsInstalled $xcodeColorsInstalled" "$infoPlistPath"
fi
Then, you can access the Info.plist param during runtime with something like:
然后，您可以在运行时使用以下内容访问 Info.plist 参数：
func isColorizedLoggingEnabled() -> Bool {
if let colorizedLoggingEnabled = NSBundle.mainBundle().infoDictionary?["XcodeColorsInstalled"] as? Bool {
return colorizedLoggingEnabled
} else {
return false
}
}
