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".

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

Tips and Traps¶

1. string is a primitive type in Golang, which means a string value has no methods on it but instead you have to use built-in functions (e.g., len) or functions in other modules (e.g., the strings

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).

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

It is suggested that you use the Golang module spf13/cobra (instead of the standard Golang library flag) for parsing command-line arguments.

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

Comments¶

1. exec.Command takes a shell command and optional arguments passed to the shell command, e.g., exec.Command("ls", "-lha"). It does not work if you pass a shell command with arguments as a single string to exec.Command