My Vimrc - Any Environment

vimrc

" <leader> is the space bar. This MUST come before any <leader> mapping: the
" leader is expanded when a mapping is defined, not when it is pressed, so
" setting it further down would silently leave earlier mappings on backslash.
let mapleader = " "
let maplocalleader = " "
" Space's normal job is 'move right one character', which l already does.
nnoremap <Space> <Nop>

filetype off

runtime! plugin/sensible.vim

if has('mouse')
   set mouse=a
 endif

set expandtab
set nocompatible
set tabstop=2           " Set tab width to 2 columns
set shiftwidth=2        " Use 2 columns for indentation
set expandtab           " Use spaces when pressing <tab> key
set number
" complete-=t removed: it switched off tag completion, which is the fallback
" when clangd is not running. complete-=i stays -- scanning included files on
" every keystroke is slow and clangd does that job properly.
set complete-=i
set completeopt=menuone,popup,noinsert,noselect
set signcolumn=yes           " stop the gutter jittering as diagnostics arrive
set updatetime=300

call plug#begin('~/.vim/plugged')
Plug 'tpope/vim-sensible'
Plug 'sheerun/vim-polyglot'
Plug 'https://github.com/preservim/nerdtree'
Plug 'ryanoasis/vim-devicons'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'tpope/vim-surround'
Plug 'w0rp/ale'
Plug 'tpope/vim-fugitive'
Plug 'ap/vim-css-color'                       "color previews for css
Plug 'lambdalisue/battery.vim'
Plug 'airblade/vim-gitgutter'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'editorconfig/editorconfig-vim'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'                       ":Files :Rg :Buffers :Tags
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'
Plug 'voldikss/vim-floaterm'
Plug 'majutsushi/tagbar'
Plug 'scrooloose/nerdcommenter'
Plug 'yegappan/lsp'                           "C/C++ completion via clangd
call plug#end()

filetype plugin indent on

map <F1> :Git<CR>

map <F2> :NERDTreeToggle<CR>
let NERDTreeShowHidden=1

" Open the tree automatically, but leave the cursor in the file -- opening into
" the tree means every session starts with an extra keystroke to get out of it.
"
" Three cases are deliberately excluded:
"   `vim .`      NERDTree already replaces netrw, so opening it again splits
"   `vim -`      reading from stdin
"   git, etc.    a commit message buffer does not want a file tree
augroup NerdTreeAuto
  autocmd!
  autocmd StdinReadPre * let s:std_in = 1
  autocmd VimEnter *
        \ if !exists('s:std_in') && &filetype !=# 'gitcommit'
        \    && (argc() == 0 || (argc() == 1 && !isdirectory(argv()[0])))
        \ | NERDTree | wincmd p | endif

  " Do not leave a lone file tree behind when the last real buffer closes.
  autocmd BufEnter *
        \ if winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree()
        \ | quit | endif
augroup END

map <F3> :FloatermNew /usr/bin/bash<CR>

nmap <F4> <Plug>(ale_fix)
let g:ale_lint_on_save = 1
let g:ale_fix_on_save = 1
let g:ale_sign_error = '✖'
let g:ale_sign_warning = '⚠'
let g:ale_echo_msg_error_str = 'E'
let g:ale_echo_msg_warning_str = 'W'
let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'
let g:ale_statusline_format =[' %d E ', ' %d W ', '']
let g:ale_linters = {'javascript': ['eslint'], 'typescript':['eslint'],'javascriptreact': ['eslint'], 'typescriptireact': ['eslint'],'python': ['flake8'] }
let g:ale_fixers = {'javascript': ['prettier', 'eslint'],  'typescript': ['prettier', 'eslint'], 'javascriptreact': ['prettier', 'eslint'], 'typecriptreact': ['prettier', 'eslint'], 'python': ['isort', 'black'] }
let g:ale_pattern_options = { '.*\.py?$': {'ale_enabled': 1},'.*\.(js|jsx)?$': {'ale_enabled': 1}, '.*\.(ts|tsx)?$': {'ale_enabled': 1}, '.*\.html$': {'ale_enabled': 0},}

vmap ++ <plug>NERDCommenterToggle

nmap <F5> :TagbarToggle<CR>

" ALE and clangd both want to diagnose C++, and two sets of signs for the same
" error is worse than one. `explicit` makes ALE run only the linters named in
" g:ale_linters above, so C++ is clangd's alone and JS/TS/Python are unchanged.
let g:ale_linters_explicit = 1

" ── Finding things ──────────────────────────────────────────────────────────
" ctrlp is gone; fzf.vim replaces it and is faster on a tree the size of the
" engine. :Rg needs ripgrep, which is installed.
nnoremap <leader>f :Files<CR>
nnoremap <leader>b :Buffers<CR>
nnoremap <leader>g :Rg<Space>
nnoremap <leader>t :Tags<CR>
nnoremap <leader>h :History<CR>

if executable('rg')
  set grepprg=rg\ --vimgrep\ --smart-case
  set grepformat=%f:%l:%c:%m
endif

" gf and :find reach engine headers from a game's source tree.
set path+=/usr/local/include,src,common

nnoremap <F6> :call <SID>Build()<CR>
nnoremap <F7> :call <SID>Run()<CR>

" Quickfix, which is where build errors arrive.
nnoremap <F8> :cwindow<CR>
nnoremap ]q   :cnext<CR>
nnoremap [q   :cprevious<CR>