[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.
This commit is contained in:
Marty Oehme 2019-07-27 12:29:47 +00:00
parent c8cd9bf11e
commit 7fab7dd6fb
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
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 "
setw -g window-status-format "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#[default] #I #W #[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]"
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]"
########################
## 5. Nested Sessions ##
########################
# from: https://github.com/samoshkin/tmux-config/blob/master/tmux/tmux.conf
# all credit to samoshkin
# Session is considered to be remote when we ssh into host
if-shell 'test -n "$SSH_CLIENT"' \
'source-file $XDG_CONFIG_HOME/tmux/tmux.remote.conf'
# We want to have single prefix key "C-a", usable both for local and remote session
# we don't want to "C-a" + "a" approach either
# Idea is to turn off all key bindings and prefix handling on local session,
# so that all keystrokes are passed to inner/remote session
# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
# Also, change some visual styles when window keys are off
bind -T root F12 \
set prefix None \;\
set key-table off \;\
set status-style fg="colour245",bg="colour238" \;\
set window-status-current-format "#[fg=$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]" \;\
set window-status-current-style fg="colour232",bg="colour254","bold" \;\
if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
refresh-client -S \;\
bind -T off F12 \
set -u prefix \;\
set -u key-table \;\
set -u status-style \;\
set -u window-status-current-style \;\
set -u window-status-current-format \;\
refresh-client -S

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@ -0,0 +1,10 @@
# show status bar at bottom for remote session,
set -g status-position bottom
# Set port of SSH remote tunnel, where tmux will pipe buffers to transfer on local machine for copy
set -g @copy_backend_remote_tunnel_port 11988
# In remote mode we don't show "clock" and "battery status" widgets
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]"
set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | #{online_status}"
set -g status-right "#[fg=#2e2e2e,bg=#2e2e2e,nobold,nounderscore,noitalics]#{prefix_highlight} #H "

39
.local/bin/test/tm.bats Normal file
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@ -0,0 +1,39 @@
setup() {
fut="$BATS_TEST_DIRNAME/../tm"
}
teardown() {
rm -rf $BATS_TMPDIR/xdg/*
}
@test "runs correctly if invoked without arguments" {
run $fut
echo "$BATS_TEST_DIRNAME/../tm"
[ "$status" -eq 0 ]
}
@test "Errors out if passed a non-existent session file (and some session name)" {
run $fut IDONT_EXIST_HERE.session sessionname
echo "STATUS: $output"
[ "$status" -eq 1 ]
echo "OUTPUT: $output"
[ "$output" = "can not source session file: 'IDONT_EXIST_HERE.session' does not exist." ]
}
@test "Runs without errors when session file exists in PWD" {
touch $PWD/exists.session
run $fut exists.session sessionname
rm $PWD/exists.session
[ "$status" -eq 0 ]
}
@test "Runs without errors when session file exists in XDG_CONFIG_HOME/tmux/sessions/" {
export XDG_CONFIG_HOME=$BATS_TMPDIR
mkdir -p $XDG_CONFIG_HOME/tmux/sessions
sesdir=$XDG_CONFIG_HOME/tmux/sessions
touch $sesdir/exists.session
run $fut exists.session sessionname
[ "$status" -eq 0 ]
}

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@ -92,7 +92,7 @@ _set_session_vars() {
# set up session name and config file - if passed in as arguments
if [ "$#" -eq 2 ]; then
if ! _file_exists "$1" && ! _file_exists "${session_dir}${1}"; then
echo "$0: can not source configuration file: '${1}' does not exist."
echo >&2 "can not source session file: '${1}' does not exist."
exit 1
fi
_set_session_file_path "$1"