[tmux] Add remote session nesting
If calling a tmux session within a tmux session, pressing F12 will toggle between sending commands to the outer or inner session. If the outer session is inactive its status-bar will be slightly greyed out to show that no commands will reach it. If the inner session is a remote ssh session, it will set some additional stylings for the status-bar to further differentiate the two.
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4 changed files with 95 additions and 11 deletions
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@ -157,3 +157,38 @@ set -g status-left "#[fg=#c8c8c8,bg=#2e2e2e] #S #[fg=#2e2e2e,bg=#2e2e2e,nobold,n
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set -g status-right "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#{prefix_highlight} #[fg=#c8c8c8,bg=#2e2e2e] %H:%M:%S #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[fg=#c8c8c8,bg=#2e2e2e] %d-%b-%y #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[fg=#c8c8c8,bg=#2e2e2e] #H "
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setw -g window-status-format "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[default] #I #W #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]"
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setw -g window-status-current-format "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[fg=#c8c8c8,bg=#2e2e2e] #I #W #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]"
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########################
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## 5. Nested Sessions ##
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########################
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# from: https://github.com/samoshkin/tmux-config/blob/master/tmux/tmux.conf
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# all credit to samoshkin
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# Session is considered to be remote when we ssh into host
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if-shell 'test -n "$SSH_CLIENT"' \
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'source-file $XDG_CONFIG_HOME/tmux/tmux.remote.conf'
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# We want to have single prefix key "C-a", usable both for local and remote session
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# we don't want to "C-a" + "a" approach either
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# Idea is to turn off all key bindings and prefix handling on local session,
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# so that all keystrokes are passed to inner/remote session
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# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
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# Also, change some visual styles when window keys are off
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bind -T root F12 \
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set prefix None \;\
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set key-table off \;\
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set status-style fg="colour245",bg="colour238" \;\
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set window-status-current-format "#[fg=$color_window_off_status_bg,bg=$color_window_off_status_current_bg]$separator_powerline_right#[default] #I:#W# #[fg=$color_window_off_status_current_bg,bg=$color_window_off_status_bg]$separator_powerline_right#[default]" \;\
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set window-status-current-style fg="colour232",bg="colour254","bold" \;\
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if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
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refresh-client -S \;\
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bind -T off F12 \
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set -u prefix \;\
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set -u key-table \;\
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set -u status-style \;\
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set -u window-status-current-style \;\
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set -u window-status-current-format \;\
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refresh-client -S
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10
.config/tmux/tmux.remote.conf
Normal file
10
.config/tmux/tmux.remote.conf
Normal file
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@ -0,0 +1,10 @@
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# show status bar at bottom for remote session,
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set -g status-position bottom
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# Set port of SSH remote tunnel, where tmux will pipe buffers to transfer on local machine for copy
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set -g @copy_backend_remote_tunnel_port 11988
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# In remote mode we don't show "clock" and "battery status" widgets
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set -g status-left "#[fg=#c8c8c8,bg=#2e2e2e][SSH]#S #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[fg=#c8c8c8,bg=#2e2e2e] #(whoami) #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[fg=#c8c8c8,bg=#2e2e2e] #I:#P #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]"
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set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | #{online_status}"
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set -g status-right "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#{prefix_highlight} #H "
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39
.local/bin/test/tm.bats
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39
.local/bin/test/tm.bats
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@ -0,0 +1,39 @@
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setup() {
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fut="$BATS_TEST_DIRNAME/../tm"
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}
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teardown() {
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rm -rf $BATS_TMPDIR/xdg/*
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}
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@test "runs correctly if invoked without arguments" {
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run $fut
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echo "$BATS_TEST_DIRNAME/../tm"
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[ "$status" -eq 0 ]
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}
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@test "Errors out if passed a non-existent session file (and some session name)" {
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run $fut IDONT_EXIST_HERE.session sessionname
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echo "STATUS: $output"
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[ "$status" -eq 1 ]
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echo "OUTPUT: $output"
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[ "$output" = "can not source session file: 'IDONT_EXIST_HERE.session' does not exist." ]
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}
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@test "Runs without errors when session file exists in PWD" {
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touch $PWD/exists.session
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run $fut exists.session sessionname
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rm $PWD/exists.session
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[ "$status" -eq 0 ]
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}
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@test "Runs without errors when session file exists in XDG_CONFIG_HOME/tmux/sessions/" {
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export XDG_CONFIG_HOME=$BATS_TMPDIR
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mkdir -p $XDG_CONFIG_HOME/tmux/sessions
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sesdir=$XDG_CONFIG_HOME/tmux/sessions
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touch $sesdir/exists.session
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run $fut exists.session sessionname
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[ "$status" -eq 0 ]
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}
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@ -3,7 +3,7 @@
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# Attach to a tmux session, or create it if it doesnt exist
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if [ "$1" = '-h' ] || [ "$1" = '--help' ]; then
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cat <<-EOF
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cat <<-EOF
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Usage: $0 [FILE] [NAME]
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Attach to an existing tmux session, or bootstrap a new session.
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@ -54,7 +54,7 @@ _not_in_tmux() {
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}
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_session_exists() {
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if tmux has-session -t "$session_name" > /dev/null 2>&1; then
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if tmux has-session -t "$session_name" >/dev/null 2>&1; then
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true
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else
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false
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@ -67,13 +67,13 @@ _create_detached_session() {
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_load_env_session_file() {
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if [ -f ./.tmux.session ]; then
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xargs -L1 tmux < ./.tmux.session
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xargs -L1 tmux <./.tmux.session
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fi
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}
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_load_session_file() {
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if [ -f "$session_file" ]; then
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xargs -L1 tmux < "$session_file"
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xargs -L1 tmux <"$session_file"
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fi
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}
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@ -92,7 +92,7 @@ _set_session_vars() {
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# set up session name and config file - if passed in as arguments
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if [ "$#" -eq 2 ]; then
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if ! _file_exists "$1" && ! _file_exists "${session_dir}${1}"; then
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echo "$0: can not source configuration file: '${1}' does not exist."
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echo >&2 "can not source session file: '${1}' does not exist."
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exit 1
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fi
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_set_session_file_path "$1"
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@ -106,12 +106,12 @@ _set_session_vars() {
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# set default session name if none was passed
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if [ -z "$session_name" ]; then
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# only if we have a filename should we append it to the session name
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if [ -n "$session_file" ]; then
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fname=/$(basename "$session_file" .session)
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fi
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# default to parent directory name / config file name for the session
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session_name=$(basename "$PWD" | sed 's/[^a-zA-Z0-9\-]//g' | tr . -)"$fname"
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# only if we have a filename should we append it to the session name
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if [ -n "$session_file" ]; then
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fname=/$(basename "$session_file" .session)
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fi
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# default to parent directory name / config file name for the session
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session_name=$(basename "$PWD" | sed 's/[^a-zA-Z0-9\-]//g' | tr . -)"$fname"
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fi
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}
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