Gist.vim, as expected, is a plugin for creating gists straight from Vim. It is also well documented.
Note: Gist.vim requires Vim to be compiled with +python3.
This plugin adds two commands:
:Gist [-pPao] [DESCRIPTION]
:GistOpenLast
The Gist command creates a gist from the buffer you're currently
viewing. It uses the current filename and all of the content. If you
would just like to post a portion of the content, invoke the
:'<,'>Gist command with a visual selection.
Here are the flags you can use when calling :Gist. Any other trailing
text will be used for the description. If you don't provide any other
text you will be prompted for a description.
-P, --public: This creates a public Gist. This is the default.
Set g:gist_default_private to change this default.
-p, --private: This creates a private gist. Public is the default.
See g:gist_default_private to change this default.
-o, --open: Open the created Gist in the browser after it's created.
This is on by default.
See g:gist_open_url to change this default.
Credentials are pulled from your ~/.netrc file. They need to be in
this format: (The URL can vary based on your g:gist_base_url)
machine api.github.com
login <Username>
password <Password>
If you're using two factor auth, provide a personal access token from here as the password.
By default the gist is opened in the browser upon creation. You can
change this default by setting g:gist_open_url to 0.
If you don't have a preferred installation method check out vim-plug