fzf.bash

# Setup fzf
# ---------
if [[ ! "$PATH" == */home/jarvis/.fzf/bin* ]]; then
	export PATH="$PATH:/home/jarvis/.fzf/bin"
fi

# Auto-completion
# ---------------
[[ $- == *i* ]] && source "/home/jarvis/.fzf/shell/completion.bash" 2> /dev/null

# Key bindings
# ------------
__fzf_select__() {
	local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
		  -o -type f -print \
		  -o -type d -print \
		  -o -type l -print 2> /dev/null | cut -b3-"}"
	eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" fzf -m "$@" | while read -r item; do
		printf '%q ' "$item"
	done
	echo
}

if [[ $- =~ i ]]; then

	__fzf_use_tmux__() {
		[ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
	}

	__fzfcmd() {
		__fzf_use_tmux__ &&
			echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
	}

	__fzf_select_tmux__() {
		local height
		height=${FZF_TMUX_HEIGHT:-40%}
		if [[ $height =~ %$ ]]; then
			height="-p ${height%\%}"
		else
			height="-l $height"
		fi

		tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") FZF_CTRL_T_OPTS=$(printf %q "$FZF_CTRL_T_OPTS") bash -c 'source \"${BASH_SOURCE[0]}\"; RESULT=\"\$(__fzf_select__ --no-height)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
	}

	fzf-file-widget() {
		if __fzf_use_tmux__; then
			__fzf_select_tmux__
		else
			local selected="$(__fzf_select__)"
			READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
			READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
		fi
	}

	__fzf_cd__() {
		local cmd dir
		cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
		   -o -type d -print 2> /dev/null | cut -b3-"}"
		dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m) && printf 'cd %q' "$dir"
	}

	__fzf_history__() (
		local line
		shopt -u nocaseglob nocasematch
		line=$(
			HISTTIMEFORMAT= history |
				FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac --sync -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m" $(__fzfcmd) |
				command grep '^ *[0-9]') &&
			if [[ $- =~ H ]]; then
				sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
			else
				sed 's/^ *\([0-9]*\)\** *//' <<< "$line"
			fi
	)

	if [[ ! -o vi ]]; then
		# Required to refresh the prompt after fzf
		bind '"\er": redraw-current-line'
		bind '"\e^": history-expand-line'

		# CTRL-T - Paste the selected file path into the command line
		if [ $BASH_VERSINFO -gt 3 ]; then
			bind -x '"\C-\M-f": "fzf-file-widget"'
		elif __fzf_use_tmux__; then
			bind '"\C-\M-f": " \C-u \C-a\C-k`__fzf_select_tmux__`\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
		else
			bind '"\C-\M-f": " \C-u \C-a\C-k`__fzf_select__`\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
		fi

		# CTRL-R - Paste the selected command from history into the command line
		bind '"\C-\M-r": " \C-e\C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er\e^"'

		# ALT-C - cd into the selected directory
		bind '"\C-\M-o": " \C-e\C-u`__fzf_cd__`\e\C-e\er\C-m"'
	fi

fi