Add support for nested local and remote sessions. Multiple config tweaks

install.sh

@@ -32,6 +32,7 @@ rsync -aq ./tmux/ "$HOME"/.tmux
 
 ln -sf --backup --suffix=.bak .tmux/tmux.conf "$HOME"/.tmux.conf;
 
+# BUG: Fix for fresh installation
 "$HOME"/.tmux/plugins/tpm/bin/install_plugins
 
 printf "$(tput setaf 2)OK:$(tput sgr0) Completed\n"

tmux/theme.conf

@@ -1,27 +0,0 @@
-
-# =====================================
-# ===           Theme               ===
-# =====================================
-
-# Feel free to NOT use this variables at all (remove, rename)
-# this are named colors, just for convenience
-color_orange="colour166" # 208, 166
-color_purple="colour134" # 135, 134
-color_green="colour076" # 070
-color_blue="colour39"
-color_yellow="colour220"
-color_red="colour160"
-color_black="colour232"
-color_white="white" # 015
-
-# This is a theme CONTRACT, you are required to define variables below
-# Change values, but not remove/rename variables itself
-color_dark="$color_black"
-color_light="$color_white"
-color_session_text="$color_blue"
-color_status_text="colour245"
-color_main="$color_orange"
-color_secondary="$color_purple"
-color_level_good="$color_green"
-color_level_warn="$color_yellow"
-color_lelel_achtung="$color_red"

tmux/tmux.conf

@@ -2,17 +2,17 @@
 # ===  General settings  ===
 # ==========================
 
+set -g default-terminal "screen-256color"
 set -g history-limit 20000
 set -g buffer-limit 20
-set -sg escape-time 1
-set -g display-time 2000
-set -g allow-rename off
-set -g default-terminal "screen"
+set -sg escape-time 0
+set -g display-time 1500
 set -g remain-on-exit off
-
-# aggressive-resize [on | off]
-# alternate-screen [on | off]
-
+set -g set-titles off
+set -g repeat-time 300
+setw -g allow-rename off
+setw -g automatic-rename off
+setw -g aggressive-resize on
 
 # Change prefix key to C-a, easier to type, same to "screen"
 unbind C-b
@@ -34,8 +34,11 @@ set -g mouse on
 # ===   Key bindings     ===
 # ==========================
 
+# Edit configuration and reload
+bind C-e new-window -n 'tmux.conf' "sh -c '\${EDITOR:-vim} ~/.tmux.conf && tmux source ~/.tmux.conf && tmux display \"Config reloaded\"'"
+
 # Reload tmux configuration 
-bind C-r source-file ~/.tmux.conf \; display "Reloaded"
+bind C-r source-file ~/.tmux.conf \; display "Config reloaded"
 
 # Rename session and window
 unbind "\$"
@@ -98,6 +101,8 @@ bind D if -F '#{session_many_attached}' \
     'confirm-before -p "Detach other clients? (y/n)" "detach -a"' \
     'display "Session has only 1 client attached"'
 
+# Hide status bar on demand
+bind C-s if -F '#{s/off//:status}' 'set status off' 'set status on'
 
 # ==================================================
 # === Window monitoring for activity and silence ===
@@ -127,8 +132,8 @@ unbind ]   # paste-buffer
 # Prefer vi style key table
 setw -g mode-keys vi
 
-# trigger copy mode by pressing PageUp key w/o prepending it with prefix key
-bind -n PageUp copy-mode
+# trigger copy mode by
+bind PageUp copy-mode
 bind Escape copy-mode
 
 bind p paste-buffer
@@ -152,13 +157,40 @@ unbind -T copy-mode-vi MouseDragEnd1Pane
 bind -T copy-mode-vi MouseDown1Pane select-pane \; send-keys -X copy-selection 
 
 
+# =====================================
+# ===           Theme               ===
+# =====================================
+
+# Feel free to NOT use this variables at all (remove, rename)
+# this are named colors, just for convenience
+color_orange="colour166" # 208, 166
+color_purple="colour134" # 135, 134
+color_green="colour076" # 070
+color_blue="colour39"
+color_yellow="colour220"
+color_red="colour160"
+color_black="colour232"
+color_white="white" # 015
+
+# This is a theme CONTRACT, you are required to define variables below
+# Change values, but not remove/rename variables itself
+color_dark="$color_black"
+color_light="$color_white"
+color_session_text="$color_blue"
+color_status_text="colour245"
+color_main="$color_orange"
+color_secondary="$color_purple"
+color_level_good="$color_green"
+color_level_warn="$color_yellow"
+color_lelel_achtung="$color_red"
+color_window_off_indicator="colour088"
+color_window_off_status_bg="colour238"
+color_window_off_status_current_bg="colour254"
+
 # =====================================
 # ===    Appearence and status bar  ===
 # ======================================
 
-# Load theme
-source ~/.tmux/theme.conf
-
 set -g mode-style "fg=default,bg=$color_main"
 
 # command line style
@@ -172,13 +204,13 @@ set -g window-status-separator ""
 separator_powerline_left=""
 separator_powerline_right=""
 
-setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
+# setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
 setw -g window-status-format " #I:#W "
 setw -g window-status-current-style "fg=$color_light,bold,bg=$color_main"
 setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main]$separator_powerline_right#[default] #I:#W# #[fg=$color_main,bg=$color_dark]$separator_powerline_right#[default]"
 
 # when window has monitoring notification
-setw -g window-status-activity-style "fg=$color_main,bg=$color_dark"
+setw -g window-status-activity-style "fg=$color_main"
 
 # outline for active pane
 setw -g pane-active-border-style "fg=$color_main"
@@ -188,18 +220,19 @@ set -g status on
 set -g status-interval 5
 set -g status-position top
 set -g status-justify left
-set -g status-right-length 140
+set -g status-right-length 100
 
 # define widgets we're going to use in status bar
 # note, that this is not the complete list, some of them are loaded from plugins
 wg_session="#[fg=$color_session_text] #S #[default]"
 wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
 wg_date="#[fg=$color_secondary]%h %d %H:%M#[default]"
-wg_host="#[fg=$color_secondary]#(echo $USER)#[default]@#H"
+wg_user_host="💻 #[fg=$color_secondary]#(echo $USER)#[default]@#H"
 wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag,[Z],}#[default]"
+wg_is_keys_off="#[fg=$color_light,bg=$color_window_off_indicator]#([ $(tmux show-option -qv \"key-table\") == \"off\" ] && echo \"[OFF]\")#[default]"
 
 set -g status-left "$wg_session"
-set -g status-right "#{prefix_highlight} $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_host | $wg_date $wg_battery #{online_status}"
+set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | $wg_date $wg_battery #{online_status}"
 
 # online and offline icon for tmux-online-status
 set -g @online_icon "#[fg=$color_level_good]●#[default]"
@@ -207,7 +240,7 @@ set -g @offline_icon "#[fg=$color_level_achtung]●#[default]"
 
 # Configure view templates for tmux-plugin-sysstat "MEM" and "CPU" widget
 set -g @sysstat_mem_size_unit "G"
-set -g @sysstat_mem_view_tmpl '#[fg=#{mem.color}]MEM:#{mem.pused}#[default] (#{mem.used})'
+set -g @sysstat_mem_view_tmpl '#[fg=#{mem.color}]MEM:#{mem.pused}#[default] #{mem.used}'
 set -g @sysstat_cpu_view_tmpl '#[fg=#{cpu.color}]CPU:#{cpu.pused}#[default]'
 
 # Configure colors for tmux-plugin-sysstat "MEM" and "CPU" widget
@@ -260,5 +293,40 @@ set -g @sidebar-tree-command 'tree -C'
 
 set -g @open-S 'https://www.google.com/search?q='
 
+
+# ==============================================
+# ===   Nesting local and remote sessions     ===
+# ==============================================
+
+# Session is considered to be remote when we ssh into host
+if-shell 'test -n "$SSH_CLIENT"' \
+    'source-file ~/.tmux/tmux.remote.conf'
+
+# We want to have single prefix key "C-a", usable both for local and remote session
+# we don't want to "C-a" + "a" approach either
+# Idea is to turn off all key bindings and prefix handling on local session,
+# so that all keystrokes are passed to inner/remote session
+
+# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
+
+# Also, change some visual styles when window keys are off
+bind -T root F12  \
+    set prefix None \;\
+    set key-table off \;\
+    set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
+    set window-status-current-format "#[fg=$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]$separator_powerline_right#[default]" \;\
+    set window-status-current-style "fg=$color_dark,bold,bg=$color_window_off_status_current_bg" \;\
+    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
+
+
 # Run all plugins' scripts
 run '~/.tmux/plugins/tpm/tpm'

tmux/tmux.remote.conf

@@ -0,0 +1,7 @@
+# show status bar at bottom for remote session, 
+# so it do not stack together with local session's one
+set -g status-position bottom
+
+# In remote mode we don't show "clock" and "battery status" widgets
+set -g status-left "$wg_session"
+set -g status-right "#{prefix_highlight} $wg_is_tunneled $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | #{online_status}"