baseproc16-default/theme_vim
Marty Oehme 2c4fe1397a Add vim theming processor
Will theme vim on-the-fly when it is running within tmux.

When permanently setting a theme, will add a
colorscheme.vim file into the vim config directory (or nvim) for which a
source statement is added to vimrc/init.vim.
2020-01-30 22:46:30 +01:00

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#!/usr/bin/env bash
readonly dependency=("chriskempson/base16-vim")
path="$1"
package="$2"
theme="$3"
permanent="$4"
file_exists() {
if [[ -f "$1" ]]; then
true
else
false
fi
}
# check for existence of pattern $2 in file $1
line_exists() {
local file="$1"
local line="$2"
if ! file_exists "$file" || ! grep -qe "$line" "$file"; then
false
else
true
fi
}
# prepare newline at eof to make adding newlines easier
eol_exists_or_append() {
local file="$1"
local eof
eof=$(tail -c 1 "$file")
if [ -n "$eof" ]; then
printf "\\n" >>"$file"
fi
}
# append line $2 to file $1
line_exists_or_append() {
local file="$1"
local line="$2"
local new="${3:-$2}"
if ! line_exists "$file" "$line"; then
eol_exists_or_append "$file"
echo "$new" >>"$file"
fi
}
theme_vim() {
dbg_msg="VIM: $package - "
tfile="$path/$package/colors/base16-$theme.vim"
check_tfile
if [[ "$permanent" == "true" ]]; then set_vim_theme; fi
recolor_vim_w_tmux
[[ "$DEBUG" == true ]] && echo "$dbg_msg"
}
check_tfile() {
if ! file_exists "$tfile"; then
dbg_msg="$dbg_msg theme $theme for vim not found.\n"
return
fi
}
recolor_vim_w_tmux() {
# this whole thing only works when tmux is running
pgrep tmux >/dev/null || return
while read -r l; do
# we need to close panels that are in a mode and get them out to send keys to vim
if [ "${l: -1}" = 1 ]; then
tmux send-keys -t "${l/:*/}" -X cancel && tmux send-keys -t "${l/:*/}" ":source $tfile" "Enter"
else
tmux send-keys -t "${l/:*/}" ":source $tfile" "Enter"
fi
# find all panes which currently have nvim/vim running
done < <(tmux list-panes -a -F '#D:#T:#{pane_current_command}:#{pane_in_mode}' | grep ':VIM:\|:nvim:')
}
set_vim_theme() {
local vim_dirs="${XDG_CONFIG_HOME:-/$HOME/.config}/nvim $HOME/.vim"
for vim_dir in $vim_dirs; do
if [[ -d "$vim_dir" ]]; then
cat "$tfile" >"$vim_dir/colorscheme.vim"
echo "colorscheme base16-$theme" >>"$vim_dir/colorscheme.vim"
call_from_vim_init
dbg_msg="$dbg_msg Set theme $theme\n"
fi
done
}
# make sure we're calling our new colorscheme whenever starting vim
call_from_vim_init() {
if file_exists "$vim_dir/init.vim"; then
line_exists_or_append "$vim_dir/init.vim" "runtime colorscheme.vim"
elif file_exists "$HOME/.vimrc"; then
line_exists_or_append "$HOME/.vimrc" "runtime colorscheme.vim"
fi
}
# Check deps
if printf '%s\n' "${dependency[@]}" | grep -q -P "^$package$"; then
theme_vim
else
printf "Processor does not work for %s, please use another." "$package"
fi