Category: vim

Vim + Golang

I am trying to learn a bit of golang (although sometimes I think I should try to master python and bash first..) with this udemy course.

The same way I have pyenv/virtualenv to create python environments, I want to do the same for golang. So for that we have goenv:

Based on goenv install instructions and ex-collegue snipset, this is my goenv snipset in .bashrc:

########################
# Go configuration
########################
#
# git clone -b v0.0.4 https://github.com/wfarr/goenv.git $HOME/.goenv
if [ ! -d "$HOME/.goenv" ]; then
    git clone https://github.com/syndbg/goenv.git $HOME/.goenv
fi

if [ -d "$HOME/.goenv"   ]
then
    export GOENV_ROOT="$HOME/.goenv"
    export PATH="$GOENV_ROOT/bin:$PATH"
    if  type "goenv" &> /dev/null; then
        eval "$(goenv init -)"
        # Add the version to my prompt
        __goversion (){
            if  type "goenv" &> /dev/null; then
                goenv_go_version=$(goenv version | sed -e 's/ .*//')
                printf $goenv_go_version
            fi
        }
        #PS1_GO="go:\$(__goversion) "
        export PS1="go:\$(__goversion)|$PS1"
        export PATH="$GOROOT/bin:$PATH"
        export PATH="$PATH:$GOPATH/bin"
    fi
fi

################## End GoLang #####################

From time to time, remember to go to ~.goenv and do a “git pull” to get the latest versions of golang.

Ok, once we can install any golang version, I was thinking about the equivalent to python virtualenv, but it seems it is not really needed in golang. At the moment, I am super beginner so no rush about this.

And finally, as I try to use VIM for everything so I can keep learning, I want to use similar python plugins for golang. So I searched and this one looks quite good: vim-go

So I updated vundle config in .vimrc:

Plugin 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }

Then install the new new plugin once in VIM.

:PluginInstall

or >

:PluginUpdate

There is a good tutorial you can follow to learn the new commands.

I am happy enough with “GoRun”, “GoFmt”, “GoImports”, “GoTest”

Keep practising, Keep learning.

VIM – Indent multiple lines quickly

This is the thing I have to do from time to time and I never remember how to do:

https://stackoverflow.com/questions/235839/indent-multiple-lines-quickly-in-vi

And this what works for me:

Key presses for more visual people:
1- Enter Command Mode:
Escape

2- Move around to the start of the area to indent:
hjkl↑↓←→

3- Start a block:
v

4- Move around to the end of the area to indent:
hjkl↑↓←→

5- Type the number of indentation levels you want
0..9

6- Execute the indentation on the block:
>

Let’s see if I can remember it…

Vim + Python Linters

I was reading an article about tools to write python using VIM with good formatting. I am not a pro-user of VIM neither a pro-python programmer but I would like to be more efficient and write better formatted python code.

So this is the link I was reading and ended here for the specific details.

At the end, my goal is to use more often inside VIM: splits (:sp), nerdtree (file browsing), autocompletion, git and be sure my code is formatted automatically if I make a mistake.

So I enabled most of the plugins from the article although I made some tweaks for me normal usage (I already had enabled some pluggins for jinja2). This is my .vimrc:

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim

" https://realpython.com/vim-and-python-a-match-made-in-heaven/#syntax-checkinghighlighting
set splitbelow
set splitright
"split navigations
nnoremap  
nnoremap  
nnoremap  
nnoremap  

" Enable folding
set foldmethod=indent
set foldlevel=99
" Enable folding with the spacebar
nnoremap  za

" Automatic formating for tab, whitespace and max 80 chars per line, etc
au BufNewFile,BufRead *.py
    \ set tabstop=4 |
    \ set softtabstop=4 |
    \ set shiftwidth=4 |
    \ set textwidth=79 |
    \ set expandtab |
    \ set autoindent |
    \ set fileformat=unix

highlight BadWhitespace ctermbg=red guibg=darkred
au BufRead,BufNewFile *.py,*.pyw,*.c,*.h match BadWhitespace /\s\+$/

set encoding=utf-8

let python_highlight_all=1

" VUNDLE PLUGINGS

call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
" call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'
" added nerdtree
Plugin 'scrooloose/nerdtree'

Plugin 'ctrlp.vim'

Plugin 'Jinja'

Plugin 'tmhedberg/SimpylFold'

Plugin 'vim-scripts/indentpython.vim'

Plugin 'vim-syntastic/syntastic'

Plugin 'nvie/vim-flake8'

Plugin 'tpope/vim-fugitive'

Plugin 'Lokaltog/powerline', {'rtp': 'powerline/bindings/vim/'}

" Keep Plugin commands between vundle#begin/end.
" All of your Plugins must be added before the following line
call vundle#end()            " required



filetype plugin indent on    " required
syntax on

nmap  :NERDTreeToggle

" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line


au BufNewFile,BufRead *.lmx set filetype=xml
au BufNewFile,BufRead *.dump set filetype=sql
au BufNewFile,BufRead *.j2 set filetype=jinja

"for case-insensitve searches"
set ignorecase

"Override the 'ignorecase' option if the search pattern contains upper"
"case characters.  Only used when the search pattern is typed and"
"'ignorecase' option is on."
set smartcase

" I want to be able to resize the splits quickly so I want the mouse on
set mouse=a

" Always show statusline - This makes powerline always on
set laststatus=2

" autocmd vimenter * NERDTree

BTW, a quick reference for NerdTree (file browser) here.

Let’s see how I get on with these changes.