Ben Chuanlong Du's Blog

It is never too late to learn.

Hands on the Cobra Module in Golang

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Comments

  1. Cobra support groups of flags which appear together or are mutually exclusive. For detailed discussions, please refer to Flag Groups .

Quickly Start a Cobra-based project

Below is an example of creating a cobra-based project "icon".

String in Golang

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tips and Traps

  1. In Golang, a string is implemented as a struct containing a data pointer (pointing to a read-only slice of bytes) and a length.

  2. Raw string literals, delimited by backticks (back quotes), are interpreted literally. They can contain line breaks, and backslashes have no special meaning.

Embed File in Golang Binary

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tips and Traps

  1. My understanding is that embeded files are loaded into memory, which means that the Go app might consume large memory if you embed a large file.

  2. The "embed" package does not work with the Gophernotes kernel (for Jupyter/Lab notebooks).