是否可以将用户定义的XCode构建设置导出到环境变量 [英] Is it possible to export user defined XCode build settings to environment variables

问题描述

我已经针对各种配置进行了一些构建设置，例如

I have made a few build settings for various configurations, e.g.

例如

我可以像这样在各种文件(例如info.plist)中访问它们:

I can access them in various files (e.g. the info.plist) like so:

${MYTESTSETTING}

但是可以在命令行环境中获取值吗?例如在詹金斯(Jenkins)的xcodebuild之后

However is it possible to get the value in the command line enviroment? e.g. after a xcodebuild from Jenkins

我尝试过

echo ${MYTESTSETTING}

还有

echo $MYTESTSETTING

推荐答案

xcodebuild -showBuildSettings

显示所有构建设置，包括用户定义的设置.示例:

shows all build settings, including the user-defined settings. Example:

$ xcodebuild -configuration Debug -showBuildSettings | grep MYTESTSETTING
    MYTESTSETTING = DebugValue
$ xcodebuild -configuration Release -showBuildSettings | grep MYTESTSETTING
    MYTESTSETTING = ReleaseValue

要将这些变量放入当前shell的环境中，必须分析此输出.例如，可以使用Perl脚本(或许多其他脚本语言)来完成此操作.

To get these variables into the environment of your current shell, you have to parse this output. This can for example be done with a Perl script (or many other scripting languages).

创建具有以下内容的Perl脚本"exportsettings.pl":

Create a Perl script "exportsettings.pl" with the following contents:

#!/usr/bin/perl
open(FH, "xcodebuild -configuration Release -showBuildSettings|");
while(<FH>) {
    if (/\s*(\w+)\s*=\s*(.*)$/) { # Search for <key> = <value>
        $key = $1; $value = $2;
        print "export $key='$value'\n";
    }
}
close(FH);

现在您可以运行命令

$ eval `perl exportsettings.pl`

从命令行

，并且(几乎)所有构建设置都在环境中. (将会出现一些错误消息，例如"UID:只读变量".)

from the command line, and (almost) all build settings are in the environment. (There will be some error messages, e.g. "UID: readonly variable").

如果在环境中仅需要使用定义的设置，则可以使用唯一的前缀(例如"MY")并更改行

If you need only your used-defined settings in the environment, you could use a unique prefix (e.g. "MY") and change the line

    if (/\s*(\w+)\s*=\s*(.*)$/) { # Search for <key> = <value>

到

    if (/\s*(MY\w+)\s*=\s*(.*)$/) { # Search for MY<key> = <value>

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