Syntax definition for go.mod and go.sum files for Sublime Text. go.mod is a manifest file for Go packages; read about it on https://golang.org/cmd/go/.
Make sure you have PackageControl installed, then open Command Palette → Install Package → Gomod.
Alternatively, clone this repository into Sublime's Packages folder. On MacOS, this is usually "/Users/<user>/Library/Application Support/Sublime Text 3/Packages". Find it using Sublime's menu → Preferences → Browse Packages.
*.mod and *.sum files should be automatically highlighted. Enjoy!
License: https://en.wikipedia.org/wiki/WTFPL
I'm receptive to suggestions. If this package almost satisfies you but needs changes, open an issue or chat me up. Contacts: https://mitranim.com/#contacts