209 lines
6.2 KiB
Bash
Executable File
209 lines
6.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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source "$CURRENT_DIR/variables.sh"
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source "$CURRENT_DIR/helpers.sh"
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source "$CURRENT_DIR/process_restore_helpers.sh"
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source "$CURRENT_DIR/spinner_helpers.sh"
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# Global variable.
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# Used during the restore: if a pane already exists from before, it is
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# saved in the array in this variable. Later, process running in existing pane
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# is also not restored. That makes the restoration process more idempotent.
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EXISTING_PANES_VAR=""
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is_line_type() {
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local line_type="$1"
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local line="$2"
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echo "$line" |
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\grep -q "^$line_type"
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}
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check_saved_session_exists() {
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local resurrect_file="$(last_resurrect_file)"
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if [ ! -f $resurrect_file ]; then
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display_message "Tmux resurrect file not found!"
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return 1
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fi
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}
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pane_exists() {
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local session_name="$1"
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local window_number="$2"
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local pane_index="$3"
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tmux list-panes -t "${session_name}:${window_number}" -F "#{pane_index}" 2>/dev/null |
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\grep -q "^$pane_index$"
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}
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register_existing_pane() {
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local session_name="$1"
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local window_number="$2"
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local pane_index="$3"
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local pane_custom_id="${session_name}:${window_number}:${pane_index}"
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local delimiter=$'\t'
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EXISTING_PANES_VAR="${EXISTING_PANES_VAR}${delimiter}${pane_custom_id}"
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}
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is_pane_registered_as_existing() {
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local session_name="$1"
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local window_number="$2"
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local pane_index="$3"
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local pane_custom_id="${session_name}:${window_number}:${pane_index}"
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[[ "$EXISTING_PANES_VAR" =~ "$pane_custom_id" ]]
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}
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window_exists() {
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local session_name="$1"
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local window_number="$2"
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tmux list-windows -t "$session_name" -F "#{window_index}" 2>/dev/null |
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\grep -q "^$window_number$"
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}
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session_exists() {
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local session_name="$1"
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tmux has-session -t "$session_name" 2>/dev/null
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}
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first_window_num() {
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tmux show -gv base-index
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}
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tmux_socket() {
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echo $TMUX | cut -d',' -f1
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}
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new_window() {
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local session_name="$1"
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local window_number="$2"
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local window_name="$3"
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local dir="$4"
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tmux new-window -d -t "${session_name}:${window_number}" -n "$window_name" -c "$dir"
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}
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new_session() {
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local session_name="$1"
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local window_number="$2"
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local window_name="$3"
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local dir="$4"
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TMUX="" tmux -S "$(tmux_socket)" new-session -d -s "$session_name" -n "$window_name" -c "$dir"
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# change first window number if necessary
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local created_window_num="$(first_window_num)"
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if [ $created_window_num -ne $window_number ]; then
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tmux move-window -s "${session_name}:${created_window_num}" -t "${session_name}:${window_number}"
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fi
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}
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new_pane() {
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local session_name="$1"
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local window_number="$2"
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local window_name="$3"
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local dir="$4"
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tmux split-window -t "${session_name}:${window_number}" -c "$dir" -h
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tmux resize-pane -t "${session_name}:${window_number}" -L "999"
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}
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restore_pane() {
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local pane="$1"
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while IFS=$'\t' read line_type session_name window_number window_name window_active window_flags pane_index dir pane_active pane_command pane_full_command; do
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dir="$(remove_first_char "$dir")"
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window_name="$(remove_first_char "$window_name")"
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pane_full_command="$(remove_first_char "$pane_full_command")"
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if pane_exists "$session_name" "$window_number" "$pane_index"; then
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# Pane exists, no need to create it!
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# Pane existence is registered. Later, it's process also isn't restored.
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register_existing_pane "$session_name" "$window_number" "$pane_index"
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elif window_exists "$session_name" "$window_number"; then
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new_pane "$session_name" "$window_number" "$window_name" "$dir"
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elif session_exists "$session_name"; then
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new_window "$session_name" "$window_number" "$window_name" "$dir"
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else
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new_session "$session_name" "$window_number" "$window_name" "$dir"
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fi
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done < <(echo "$pane")
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}
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restore_state() {
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local state="$1"
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echo "$state" |
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while IFS=$'\t' read line_type client_session client_last_session; do
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tmux switch-client -t "$client_last_session"
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tmux switch-client -t "$client_session"
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done
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}
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restore_all_panes() {
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while read line; do
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if is_line_type "pane" "$line"; then
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restore_pane "$line"
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fi
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done < $(last_resurrect_file)
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}
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restore_all_pane_processes() {
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if restore_pane_processes_enabled; then
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local pane_full_command
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awk 'BEGIN { FS="\t"; OFS="\t" } /^pane/ && $11 !~ "^:$" { print $2, $3, $7, $8, $11; }' $(last_resurrect_file) |
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while IFS=$'\t' read session_name window_number pane_index dir pane_full_command; do
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dir="$(remove_first_char "$dir")"
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pane_full_command="$(remove_first_char "$pane_full_command")"
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restore_pane_process "$pane_full_command" "$session_name" "$window_number" "$pane_index" "$dir"
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done
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fi
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}
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restore_pane_layout_for_each_window() {
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\grep '^window' $(last_resurrect_file) |
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while IFS=$'\t' read line_type session_name window_number window_active window_flags window_layout; do
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tmux select-layout -t "${session_name}:${window_number}" "$window_layout"
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done
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}
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restore_active_pane_for_each_window() {
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awk 'BEGIN { FS="\t"; OFS="\t" } /^pane/ && $9 == 1 { print $2, $3, $7; }' $(last_resurrect_file) |
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while IFS=$'\t' read session_name window_number active_pane; do
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tmux switch-client -t "${session_name}:${window_number}"
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tmux select-pane -t "$active_pane"
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done
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}
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restore_zoomed_windows() {
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awk 'BEGIN { FS="\t"; OFS="\t" } /^window/ && $5 ~ /Z/ { print $2, $3; }' $(last_resurrect_file) |
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while IFS=$'\t' read session_name window_number; do
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tmux resize-pane -t "${session_name}:${window_number}" -Z
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done
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}
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restore_active_and_alternate_windows() {
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awk 'BEGIN { FS="\t"; OFS="\t" } /^window/ && $5 ~ /[*-]/ { print $2, $4, $3; }' $(last_resurrect_file) |
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sort -u |
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while IFS=$'\t' read session_name active_window window_number; do
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tmux switch-client -t "${session_name}:${window_number}"
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done
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}
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restore_active_and_alternate_sessions() {
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while read line; do
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if is_line_type "state" "$line"; then
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restore_state "$line"
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fi
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done < $(last_resurrect_file)
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}
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main() {
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if supported_tmux_version_ok && check_saved_session_exists; then
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start_spinner
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restore_all_panes
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restore_pane_layout_for_each_window >/dev/null 2>&1
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restore_all_pane_processes
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# below functions restore exact cursor positions
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restore_active_pane_for_each_window
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restore_zoomed_windows
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restore_active_and_alternate_windows
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restore_active_and_alternate_sessions
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stop_spinner
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display_message "Tmux restore complete!"
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fi
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}
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main
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