bin/i3-settree

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2.3 KiB
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#! /usr/bin/env bash
#
# i3-settree
# Restore an i3 layout using a list of saved trees
# Copyright (C) 2018 salt <salt@lap-th-e560-0>
#
# Distributed under terms of the MIT license.
#
# Pedantry
# shellcheck disable=1117
# Globals
name="$(basename -- "$0")"
treespath="${XDG_CONFIG_DIR:-$HOME/.config}/i3/trees"
# Helpers
log() {
[ -z "$1" ] && return 1
printf "%s: %s\n" \
"$name" \
"$1"
return 0
}
prepare_input() {
options=""
for file in "$treespath"/*; do
if ! [ -r "$file" ]; then
# Cannot read the file; skip it
continue
fi
if ! [[ "$file" = *".json" ]]; then
# File is not a json structure; skip it
continue
fi
if ! [ -f "$file" ]; then
# Glob failed and no files exist; error
return 1
fi
if [ -z "$options" ]; then
options="$(basename -s ".json" -- "$file")"
else
options="$options
$(basename -s ".json" -- "$file")"
fi
done
printf "%s" \
"$options"
return 0
}
# Steps
step_validate_deps() {
# Ensure we have all the programs we need to do this
for dep in rofi i3-msg; do
if ! command -v "$dep" > /dev/null 2>&1; then
log "Could not validate dependency \"$dep\""
return 1
fi
done
return 0
}
step_validate_files() {
# Ensure we actually have tree files to set
if ! [ -d "$treespath" ]; then
mkdir -p "$treespath" > /dev/null 2>&1
if [ -d "$treespath" ]; then
log "Trees path was created: $treespath"
log "Put your modified i3-save-tree trees there"
return 1
else
log "Failed to create trees path: $treespath"
log "Are permissions set correctly? Is the filesystem mounted read-write?"
return 1
fi
fi
return 0
}
step_get_input() {
# Get the user input, store it in $choice
choice="$(rofi -dmenu -p "i3 tree" <<< "$(prepare_input)")"
choicefile="$treespath/$choice.json"
if [ -z "$choice" ]; then
log "User cancelled the operation"
return 1
else
log "Choice: $choice"
log "Choicefile: $choicefile"
fi
}
step_act() {
# Do the do
# Using a case statement here in case I want to implement saving
# functionality later
case "$choice" in
*)
i3-msg "append_layout $choicefile" > /dev/null 2>&1
if [ -r "$choicefile.rc" ]; then
log "Running $choicefile.rc"
"$choicefile".rc
fi
return $!
;;
esac
}
# Main
main() {
step_validate_deps || return 50
step_validate_files || return 51
step_get_input || return 52
step_act
return $!
}
main "$@"