vim:looks: Don't hardcode the colorscheme colors

Stop an already running timer similar to how it is done already when
highlighting the selection.

.config/vim/after/ftplugin/man.vim

@@ -37,18 +37,30 @@ setlocal showbreak=NONE
 " This is very hacky.
 
 " Only if WinResized is supported
-if has('##WinResized')
+if exists('##WinResized')
 
 augroup man_resized
 	" The reload has to be delayed slightly, since with an `edit` directly in
 	" the autocmd, the buffer will just be cleared? (TODO)
-	" NOTE: One could add a wrapper function that checks for the existence of
-	"       already running timers similar to how it's done in the
-	"       highlight_current group (see autocommands.vim), but this feels
-	"       overkill here.
-	au! WinResized <buffer> call timer_start(10, function("s:redraw_delayed"))
+	au! WinResized <buffer> call s:redraw_man(v:event)
 augroup END
 
+function s:redraw_man(event)
+	if exists('w:disable_man_resizing')
+		return
+	endif
+
+	if exists('w:man_resizing_timer_id')
+		call timer_stop(w:man_resizing_timer_id)
+	endif
+
+	echo a:event
+
+	" TODO: make sure that a:event contains window number and that the width
+	"       actually changed with getwininfo()
+	let w:man_resizing_timer_id = timer_start(10, function("s:redraw_delayed"))
+endfunction
+
 " The function can't be redefined during the reload of the ftplugin (i.e.
 " triggered by `edit`), since it is currently executing (i.e. `edit`):
 "
@@ -56,6 +68,8 @@ augroup END
 "
 if !exists("*s:redraw_delayed")
 	function s:redraw_delayed(timer_id)
+		unlet w:man_resizing_timer_id
+
 		" Try to keep the position as close as possible, since edit will move to
 		" the start of the file
 		" TODO: this should be more accurate
@@ -72,5 +86,5 @@ endif
 " lines, messing up the whole buffer. Since this is distracting, turn it off.
 setlocal nowrap
 
-endif " has('##WinResized')
+endif " exists('##WinResized')
 " ------------------------------------------------------------------------------

.config/vim/ftplugin/gitcommit.vim

@@ -20,3 +20,27 @@ let g:gutentags_enabled = 0
 " When aborting a commit I usually use :cq which I can't when committing through
 " fugitive. Abbreviate it to something that works.
 cabbrev <buffer> cq %d <Bar> x
+
+" Fold file listings (staged, unstaged, untracked, ...) and diff
+setlocal foldmethod=syntax
+
+" Unfold staged files and diff. inspired by:
+" https://vi.stackexchange.com/questions/4050/how-to-search-for-pattern-in-certain-syntax-regions/27008#27008
+if has("patch-8.2.0915") || has("nvim-0.7.0")
+
+function s:open_fold(group, content)
+	" Find line containing `content` that is highlighted with `group`
+	let l:line_nr = search(a:content, "n", 0, 0, { ->
+		\ synstack('.', col('.'))
+		\ ->map('synIDattr(v:val, "name")')
+		\ ->match(a:group) < 0 })
+	if l:line_nr <= 0
+		return
+	endif
+	execute l:line_nr->string() .. "foldopen"
+endfunction
+
+call s:open_fold("gitcommitSelected", "Changes to be committed:")
+call s:open_fold("gitcommitDiff", "diff --")
+
+endif " has("patch-8.2.0915") || has("nvim-0.7.0")

.config/vim/vimrc.d/20-plugins.vim

@@ -26,10 +26,13 @@ endif
 " ctags
 if (executable('ctags'))
 	packadd vim-gutentags
+	" Don't index these folders
 	let g:gutentags_ctags_exclude = [
 		\ 'node_modules/*',
 		\ '.git/*',
-		\ 'build/*'
+		\ 'build/*',
+		\ 'venv/*',
+		\ '__pycache__/*'
 	\]
 endif
 
@@ -53,4 +56,6 @@ if exists("g:loaded_nrrw_rgn")
 	" Open narrow window above or to the left of the current window (default
 	" is topleft). See :h aboveleft etc.
 	let g:nrrw_topbot_leftright = 'aboveleft'
+	" Leave one more line of padding when the window is small
+	let g:nrrw_rgn_pad = 1
 endif

.config/vim/vimrc.d/30-settings.vim

@@ -119,6 +119,15 @@ if (exists('g:loaded_gitgutter'))
 	" lines have been changed.
 	set foldtext=gitgutter#fold#foldtext()
 endif
+" Use the number column for the signcolumn (e.g. gitgutter, lsp diagnostics),
+" but don't fallback to 'auto' when &number is off
+" TODO: install autocommand to set signcolumn to yes when number is turned off
+"   (and back to number when turned back on)
+if &number
+	set signcolumn=number
+else
+	set signcolumn=yes
+endif
 
 " Netrw
 " Use tree style listing

.config/vim/vimrc.d/50-looks.vim

@@ -50,14 +50,24 @@ if (get(g:, 'loaded_fzf'))
 	endif
 endif
 
+" Get red from my colorscheme
+let s:red = {}
+if exists("*onedark#GetColors")
+	let s:red = onedark#GetColors()->get("red", {})
+endif
+let s:red_cterm = s:red->get("cterm", "red")
+let s:red_gui = s:red->get("gui", "red")
+
 " Highlight trailing whitespaces
 if match(&listchars, 'trail: \@!') > -1 && match(&listchars, '\vtab:( +)@!') > -1
 	" Use foreground for coloring if tabs and trailing spaces are displayed
 	" as non-space characters
-	highlight TrailingWhitespace ctermfg=red guifg=red
+	execute "highlight TrailingWhitespace ctermfg=" .. s:red_cterm
+	                                 \ .. " guifg=" .. s:red_gui
 else
 	" Background otherwise
-	highlight TrailingWhitespace ctermbg=red guibg=red
+	execute "highlight TrailingWhitespace ctermbg=" .. s:red_cterm
+	                                 \ .. " guibg=" .. s:red_gui
 endif
 augroup HighlightTrailingWhitespace
 	au!
@@ -74,8 +84,10 @@ let g:spl_special_chars = {
 	\ 'fr': 'àâæçèéêëîïôœùûüÿÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ',
 \ }
 
-" Highlight non-ASCII characters in the red used by my color scheme "OneDark"
-highlight NonASCIIChars ctermfg=white guifg=white ctermbg=204 guibg=#e06c75
+" Highlight non-ASCII characters in red
+execute "highlight NonASCIIChars ctermfg=white guifg=white "
+	\ .. "ctermbg=" .. s:red_cterm .. " guibg=" .. s:red_gui
+
 " Do not highlight special characters that are valid in the respective spelllang
 function! HighlightNonASCIIChars()
 	if exists('w:non_ascii_match_id')