之前很傻,每次运行这个setup.bat都要等很久很久才能把4g多的东西下载完成,知道有一天突然发现了世外桃源……
从命令行运行setup.bat -help,可以看到参数的说明(没错,参数可选,之前一直以为bat都是拿来双击的……):
Usage: GitDependencies [options] Options: --all Sync all folders --include=<X> Include binaries in folders called <X> --exclude=<X> Exclude binaries in folders called <X> --prompt Prompt before overwriting modified files --force Always overwrite modified files --root=<PATH> Set the repository directory to be sync --threads=<N> Use N threads when downloading new files --dry-run Print a list of outdated files and exit --max-retries Override maximum number of retries per file --proxy=<user:password@url> Sets the HTTP proxy address and credentials --cache=<PATH> Specifies a custom path for the download cache --cache-size-multiplier=<N> Cache size as multiplier of current download --cache-days=<N> Number of days to keep entries in the cache --no-cache Disable caching of downloaded files Detected settings: Excluded folders: Mac, Android, Linux Proxy server: none Download cache: disabled Default arguments can be set through the UE4_GITDEPS_ARGS environment variable. Installing prerequisites...
我们的优化都是围绕这些参数来的:
- --exclude=<XXX> (这些选项前的双横线也可以用单横线)
非常有用,减少不必要的文件下载。可以排除掉自己不需要的平台和VS版本,例如: setup.bat -exclude=Linux -exclude=IOS -exclude=HTML5 -exclude=Android -exclude=VS2013
平台可选的参数:Win32, Win64, osx32,osx64, Linux, Android, IOS, HTML5
VS版本可选参数:VS2012,VS2013,VS2015
警告: 不要排除Win32 和 VS2012, 不然后期编译会遇到问题 - --threads=<N>
可以多线程下载,速度倍增。例如:setup.bat --threads=20 - --cache=<PATH>
可以把下载的内容缓存在指定的目录,这样如果有多人需要,就可以只下载一次,然后分享给大家,例如:setup.bat --cache=D:Temp - --proxy=<user:password@url>
可以使用代理下载