tmux-resurrect/scripts/helpers.sh

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default_resurrect_dir="$HOME/.tmux/resurrect"
resurrect_dir_option="@resurrect-dir"
SUPPORTED_VERSION="1.9"
RESURRECT_FILE_PREFIX="tmux_resurrect"
RESURRECT_FILE_EXTENSION="txt"
_RESURRECT_DIR=""
_RESURRECT_FILE_PATH=""
d=$'\t'
# helper functions
get_tmux_option() {
local option="$1"
local default_value="$2"
local option_value=$(tmux show-option -gqv "$option")
if [ -z "$option_value" ]; then
echo "$default_value"
else
echo "$option_value"
fi
}
# Ensures a message is displayed for 5 seconds in tmux prompt.
# Does not override the 'display-time' tmux option.
display_message() {
local message="$1"
# display_duration defaults to 5 seconds, if not passed as an argument
if [ "$#" -eq 2 ]; then
local display_duration="$2"
else
local display_duration="5000"
fi
# saves user-set 'display-time' option
local saved_display_time=$(get_tmux_option "display-time" "750")
# sets message display time to 5 seconds
tmux set-option -gq display-time "$display_duration"
# displays message
tmux display-message "$message"
# restores original 'display-time' value
tmux set-option -gq display-time "$saved_display_time"
}
supported_tmux_version_ok() {
$CURRENT_DIR/check_tmux_version.sh "$SUPPORTED_VERSION"
}
remove_first_char() {
echo "$1" | cut -c2-
}
capture_pane_contents_option_on() {
local option="$(get_tmux_option "$pane_contents_option" "off")"
[ "$option" == "on" ]
}
files_differ() {
! cmp -s "$1" "$2"
}
save_shell_history_option_on() {
local option_shell="$(get_tmux_option "$shell_history_option" "off")"
local option_bash="$(get_tmux_option "$bash_history_option" "off")"
[ "$option_shell" == "on" ] || [ "$option_bash" == "on" ]
}
get_grouped_sessions() {
local grouped_sessions_dump="$1"
export GROUPED_SESSIONS="${d}$(echo "$grouped_sessions_dump" | cut -f2 -d"$d" | tr "\\n" "$d")"
}
is_session_grouped() {
local session_name="$1"
[[ "$GROUPED_SESSIONS" == *"${d}${session_name}${d}"* ]]
}
# pane content file helpers
pane_contents_create_archive() {
tar cf - -C "$(resurrect_dir)/save/" ./pane_contents/ |
gzip > "$(pane_contents_archive_file)"
}
pane_content_files_restore_from_archive() {
local archive_file="$(pane_contents_archive_file)"
if [ -f "$archive_file" ]; then
mkdir -p "$(pane_contents_dir "restore")"
gzip -d < "$archive_file" |
tar xf - -C "$(resurrect_dir)/restore/"
fi
}
# path helpers
resurrect_dir() {
if [ -z "$_RESURRECT_DIR" ]; then
local path="$(get_tmux_option "$resurrect_dir_option" "$default_resurrect_dir")"
# expands tilde, $HOME and $HOSTNAME if used in @resurrect-dir
echo "$path" | sed "s,\$HOME,$HOME,g; s,\$HOSTNAME,$(hostname),g; s,\~,$HOME,g"
else
echo "$_RESURRECT_DIR"
fi
}
_RESURRECT_DIR="$(resurrect_dir)"
resurrect_file_path() {
if [ -z "$_RESURRECT_FILE_PATH" ]; then
local timestamp="$(date +"%Y%m%dT%H%M%S")"
echo "$(resurrect_dir)/${RESURRECT_FILE_PREFIX}_${timestamp}.${RESURRECT_FILE_EXTENSION}"
else
echo "$_RESURRECT_FILE_PATH"
fi
}
_RESURRECT_FILE_PATH="$(resurrect_file_path)"
last_resurrect_file() {
echo "$(resurrect_dir)/last"
}
pane_contents_dir() {
echo "$(resurrect_dir)/$1/pane_contents/"
}
pane_contents_file() {
local save_or_restore="$1"
local pane_id="$2"
echo "$(pane_contents_dir "$save_or_restore")/pane-${pane_id}"
}
pane_contents_file_exists() {
local pane_id="$1"
[ -f "$(pane_contents_file "restore" "$pane_id")" ]
}
pane_contents_archive_file() {
echo "$(resurrect_dir)/pane_contents.tar.gz"
}
resurrect_history_file() {
local pane_id="$1"
local shell_name="$2"
echo "$(resurrect_dir)/${shell_name}_history-${pane_id}"
}
execute_hook() {
local kind="$1"
shift
local args="" hook=""
hook=$(get_tmux_option "$hook_prefix$kind" "")
# If there are any args, pass them to the hook (in a way that preserves/copes
# with spaces and unusual characters.
if [ "$#" -gt 0 ]; then
printf -v args "%q " "$@"
fi
if [ -n "$hook" ]; then
eval "$hook $args"
fi
}