[FR] Portable Mode

[ag2s20150909]

When a new folder named data is created in the current directory of the software executable, portable mode will use this folder as the base startup folder and as the Home Directory

[2dust]

clashN is already in portable mode

[ag2s20150909]

clashN is already in portable mode

But it store file in C:\Users\xxxx\.config\clash,when use local flie proxy-providers .
Because it depends on a specific absolute path, this is not a true portable mode

[2dust]

proxy-providers type: http or file？
If http, you can download it yourself when you use it
If file, you can use absolute path

[ag2s20150909]

proxy-providers type: http or file？ If http, you can download it yourself when you use it If file, you can use absolute path

https://github.com/Dreamacro/clash/blob/30d4668008b493b65e7d6982b4c43bb34871e13c/main.go#L33

https://github.com/MetaCubeX/Clash.Meta/blob/4c8d651d6585bed810b82ce2e4d2e5e31a89f34d/main.go#L34

Clash core use -d set configuration directory(homeDir) and -f specify configuration file.
So It is easy to implement this feature.
1，Check whether the target folder exists in the current installation directory.
2, If it exists, add -d to the startup parameter to specify the homeDir

[2dust]

clashN.zip
Test with this version