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#!/usr/bin/env bash
# vim: set filetype=sh
#
# Author: Cody Hiar
# Date: 2019-01-11
#
# Description: Rolodex script. Consider the following setup
#
# +------------------------------+-----------------------------+
# | | |
# | | Pane 3 |
# | | |
# | Pane 1 +-----------------------------+
# | | |
# | | Pane 4 |
# +------------------------------+ |
# | | |
# | +-----------------------------+
# | Pane 2 | |
# | | |
# | | Pane 5 |
# | | |
# +------------------------------+-----------------------------+
# Window 1 Window 2
#
# This is my standard setup. Pane 1 is vim, pane 2-5 are just used for docker
# or w/e else. I almost always want to stick on Window 1 but I want to cycle
# between pane 2-5. This script will simply rotate them in either direction so
# I can stay in window 1 but have a sort of "tabbed" bottom window
#
# Set options:
# e: Stop script if command fails
# u: Stop script if unset variable is referenced
# x: Debug, print commands as they are executed
# o pipefail: If any command in a pipeline fails it all fails
#
# IFS: Internal Field Separator
set -euo pipefail
IFS=$'\n\t'
# Colors for printing
G='\e[0;32m' # Green
LG='\e[0;37m' # Light Gray
C='\e[0;36m' # Cyan
NC='\e[0m' # No Color
# Immutable globals
readonly ARGS=( "$@" )
readonly NUM_ARGS="$#"
readonly PROGNAME=$(basename "$0")
readonly OPEN=1
readonly CLOSED=0
readonly DRAWER_SIZE=20
# This allows us to redefine using either 1.1 or 1.2 as the pane. I'm growing
# more partial to having 1.1 as drawer to match tmux alt 3 layout
readonly DRAWER_WINDOW_NUMBER="1.1"
readonly MAIN_WINDOW_NUMBER="1.2"
get_active_pane(){
echo $(tmux lsp | grep '(active)' | cut -c 1)
}
get_number_of_buffer_window_panes() {
echo $(tmux lsp -t 2 | wc -l)
}
get_number_of_active_window_panes() {
echo $(tmux lsp | wc -l)
}
get_number_of_windows() {
echo $(tmux lsw | wc -l)
}
get_prev_pane() {
PANE_COUNT=$(get_number_of_active_window_panes)
if [[ "$PANE_COUNT" == '2' ]]; then
BUFFER_COUNT=$(get_number_of_buffer_window_panes)
ACTIVE_PANE=$(get_active_pane)
tmux swap-pane -s "${DRAWER_WINDOW_NUMBER}" -t 2."$BUFFER_COUNT"
MAX=$((BUFFER_COUNT - 1))
for i in $(seq 1 "$MAX" | tac); do
NEXT=$((i + 1))
tmux swap-pane -s 2."$i" -t 2."$NEXT"
done
tmux select-pane -t 1."$ACTIVE_PANE"
fi
}
get_next_pane() {
PANE_COUNT=$(get_number_of_active_window_panes)
if [[ "$PANE_COUNT" == '2' ]]; then
BUFFER_COUNT=$(get_number_of_buffer_window_panes)
ACTIVE_PANE=$(get_active_pane)
tmux swap-pane -s "${DRAWER_WINDOW_NUMBER}" -t 2.1
MAX=$((BUFFER_COUNT - 1))
for i in $(seq 1 "$MAX"); do
NEXT=$((i + 1))
tmux swap-pane -s 2."$i" -t 2."$NEXT"
done
tmux select-pane -t 1."$ACTIVE_PANE"
fi
}
close_drawer() {
PANE_COUNT=$(get_number_of_active_window_panes)
if [[ "$PANE_COUNT" == '2' ]]; then
WINDOW_COUNT=$(get_number_of_windows)
if [[ "$WINDOW_COUNT" == '1' ]]; then
tmux new-window
fi
tmux move-pane -s "${DRAWER_WINDOW_NUMBER}" -t 2.1
tmux move-pane -s 2.1 -t 2.2
if [[ "$WINDOW_COUNT" == '1' ]]; then
tmux kill-pane -t 2.2
fi
tmux select-window -t 1
fi
}
open_drawer() {
PANE_COUNT=$(get_number_of_active_window_panes)
if [[ "$PANE_COUNT" == '1' ]]; then
WINDOW_COUNT=$(get_number_of_windows)
if [[ "$WINDOW_COUNT" == '1' ]]; then
tmux split-window -c '#{pane_current_path}'
else
tmux move-pane -s 2.1
# Hardcoded swap for having the pane on top
tmux swap-pane -t 1.2 -s 1.1
fi
tmux resize-pane -t "${DRAWER_WINDOW_NUMBER}" -y "${DRAWER_SIZE}"
fi
}
check_if_drawer_is_open_or_closed() {
set +e
tmux showenv DRAWER_PANE_ID &> /dev/null
RETVAL="$?"
set -e
if [[ "$RETVAL" == 0 ]]; then
echo "${OPEN}"
else
echo "${CLOSED}"
fi
}
toggle_drawer() {
PANE_COUNT=$(get_number_of_active_window_panes)
if [[ "$PANE_COUNT" == '1' ]]; then
open_drawer
elif [[ "$PANE_COUNT" == '2' ]]; then
close_drawer
fi
}
create_new_pane() {
tmux split-window -c '#{pane_current_path}'
tmux resize-pane -t "${DRAWER_WINDOW_NUMBER}" -y "${DRAWER_SIZE}"
}
main() {
ACTION="${1:-}"
if [[ $ACTION == "toggle" ]]; then
toggle_drawer
elif [[ $ACTION == "next" ]]; then
get_next_pane
elif [[ $ACTION == "prev" ]]; then
get_prev_pane
elif [[ $ACTION == "new" ]]; then
create_new_pane
else
echo "Unrecognized command: ${ACTION}"
fi
}
main $ARGS
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