From 3e5289d02242870bd4c540162ff39350404bd8b1 Mon Sep 17 00:00:00 2001
From: Gregory Pakosz <gregory.pakosz@gmail.com>
Date: Sat, 27 Apr 2019 15:23:12 +0200
Subject: [PATCH] added support for TMUX_CONF and TMUX_CONF_LOCAL environment
 variables
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exporting these environment variables before launching tmux gives flexibility
with respect to dot files preferred location

⚠️ this raises tmux minimum version to 2.4 as it relies of conditional parsing
of configuration directives with %if/%endif
---
 .tmux.conf | 93 ++++++++++++++++++++++++++++++------------------------
 1 file changed, 52 insertions(+), 41 deletions(-)

diff --git a/.tmux.conf b/.tmux.conf
index 6c3d037..e8ff4f3 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -7,6 +7,17 @@
 #     instead, override settings in ~/.tmux.conf.local, see README.md
 
 
+# -- environment variables -----------------------------------------------------
+
+%if #{==:#{TMUX_CONF},}
+TMUX_CONF='~/.tmux.conf'
+%endif
+
+%if #{==:#{TMUX_CONF_LOCAL},}
+TMUX_CONF_LOCAL='~/.tmux.conf.local'
+%endif
+
+
 # -- general -------------------------------------------------------------------
 
 set -g default-terminal "screen-256color" # colors!
@@ -24,10 +35,10 @@ setw -q -g utf8 on
 set -g history-limit 5000                 # boost history
 
 # edit configuration
-bind e new-window -n '~/.tmux.conf.local' "sh -c '\${EDITOR:-vim} ~/.tmux.conf.local && tmux source ~/.tmux.conf && tmux display \"~/.tmux.conf sourced\"'"
+bind e new-window -n '#{TMUX_CONF_LOCAL}' "sh -c '\${EDITOR:-vim} $TMUX_CONF_LOCAL && tmux source $TMUX_CONF && tmux display \"$TMUX_CONF sourced\"'"
 
 # reload configuration
-bind r source-file ~/.tmux.conf \; display '~/.tmux.conf sourced'
+bind r run 'tmux source "${TMUX_CONF/#\~/$HOME}" \; display "$TMUX_CONF sourced"'
 
 
 # -- display -------------------------------------------------------------------
@@ -75,7 +86,7 @@ bind > swap-pane -D       # swap current pane with the next one
 bind < swap-pane -U       # swap current pane with the previous one
 
 # maximize current pane
-bind + run 'cut -c3- ~/.tmux.conf | sh -s _maximize_pane "#{session_name}" #D'
+bind + run 'cut -c3- #{TMUX_CONF} | sh -s _maximize_pane "#{session_name}" #D'
 
 # pane resizing
 bind -r H resize-pane -L 2
@@ -91,17 +102,17 @@ bind -r C-l next-window     # select next window
 bind Tab last-window        # move to last active window
 
 # toggle mouse
-bind m run "cut -c3- ~/.tmux.conf | sh -s _toggle_mouse"
+bind m run "cut -c3- #{TMUX_CONF} | sh -s _toggle_mouse"
 
 
 # -- urlview -------------------------------------------------------------------
 
-bind U run "cut -c3- ~/.tmux.conf | sh -s _urlview #{pane_id}"
+bind U run "cut -c3- #{TMUX_CONF} | sh -s _urlview #{pane_id}"
 
 
 # -- facebook pathpicker -------------------------------------------------------
 
-bind F run "cut -c3- ~/.tmux.conf | sh -s _fpp #{pane_id}"
+bind F run "cut -c3- #{TMUX_CONF} | sh -s _fpp #{pane_id}"
 
 
 # -- list choice (tmux < 2.4) --------------------------------------------------
@@ -162,12 +173,12 @@ bind P choose-buffer # choose which buffer to paste from
 
 # -- user defined overrides ----------------------------------------------------
 
-if '[ -f ~/.tmux.conf.local ]' 'source ~/.tmux.conf.local'
+run 'tmux source -q "${TMUX_CONF_LOCAL/#\~/$HOME}"'
 
 
 # -- 8< ------------------------------------------------------------------------
 
-run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
+run 'cut -c3- #{TMUX_CONF} | sh -s _apply_configuration'
 
 
 # EOF
@@ -822,12 +833,12 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   tmux_conf_theme_terminal_title=${tmux_conf_theme_terminal_title:-'#h ❐ #S ● #I #W'}
 #
 #   tmux_conf_theme_terminal_title=$(echo "$tmux_conf_theme_terminal_title" | sed \
-#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled #I)%g' \
-#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g' \
-#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
-#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
-#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
-#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#     -e 's%#{circled_window_index}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #S)%g' \
+#     -e 's%#{username}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} true #D)%g')
 #   tmux set -g set-titles-string "$tmux_conf_theme_terminal_title"
 #
 #   tmux_conf_theme_window_status_fg=${tmux_conf_theme_window_status_fg:-'#8a8a8a'} # white
@@ -846,19 +857,19 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   fi
 #
 #   tmux_conf_theme_window_status_format=$(echo "$tmux_conf_theme_window_status_format" | sed \
-#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled #I)%g' \
-#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g' \
-#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
-#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
-#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
-#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#     -e 's%#{circled_window_index}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #S)%g' \
+#     -e 's%#{username}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} true #D)%g')
 #   tmux_conf_theme_window_status_current_format=$(echo "$tmux_conf_theme_window_status_current_format" | sed \
-#     -e 's%#{circled_window_index}%#(cut -c3- ~/.tmux.conf | sh -s _circled #I)%g' \
-#     -e 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g' \
-#     -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
-#     -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
-#     -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
-#     -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#     -e 's%#{circled_window_index}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #I)%g' \
+#     -e 's%#{circled_session_name}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #S)%g' \
+#     -e 's%#{username}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} false #D)%g' \
+#     -e 's%#{hostname}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} false #D)%g' \
+#     -e 's%#{username_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} true #D)%g' \
+#     -e 's%#{hostname_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} true #D)%g')
 #
 #   tmux  setw -g window-status-style "fg=$tmux_conf_theme_window_status_fg,bg=$tmux_conf_theme_window_status_bg,$tmux_conf_theme_window_status_attr" \;\
 #         setw -g window-status-format "$tmux_conf_theme_window_status_format" \;\
@@ -916,7 +927,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #     -e "s/#{prefix}/#[fg=$tmux_conf_theme_prefix_fg]#[bg=$tmux_conf_theme_prefix_bg]#[$tmux_conf_theme_prefix_attr]#{?client_prefix,$tmux_conf_theme_prefix,}/g")
 #
 #   tmux_conf_theme_status_left=$(echo "$tmux_conf_theme_status_left" | sed \
-#     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_tty} #D)#[inherit]%g")
+#     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- #{TMUX_CONF} | sh -s _root #{pane_tty} #D)#[inherit]%g")
 #
 #   tmux_conf_theme_status_left=$(echo "$tmux_conf_theme_status_left" | sed \
 #     -e "s%#{synchronized}%#[fg=$tmux_conf_theme_synchronized_fg]#[bg=$tmux_conf_theme_synchronized_bg]#[$tmux_conf_theme_synchronized_attr]#{?pane_synchronized,$tmux_conf_theme_synchronized,}%g")
@@ -1003,7 +1014,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #     -e "s/#{prefix}/#[fg=$tmux_conf_theme_prefix_fg]#[bg=$tmux_conf_theme_prefix_bg]#[$tmux_conf_theme_prefix_attr]#{?client_prefix,$tmux_conf_theme_prefix,}/g")
 #
 #   tmux_conf_theme_status_right=$(echo "$tmux_conf_theme_status_right" | sed \
-#     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- ~/.tmux.conf | sh -s _root #{pane_tty} #D)#[inherit]%g")
+#     -e "s%#{root}%#[fg=$tmux_conf_theme_root_fg]#[bg=$tmux_conf_theme_root_bg]#[$tmux_conf_theme_root_attr]#(cut -c3- #{TMUX_CONF} | sh -s _root #{pane_tty} #D)#[inherit]%g")
 #
 #   tmux_conf_theme_status_right=$(echo "$tmux_conf_theme_status_right" | sed \
 #     -e "s%#{synchronized}%#[fg=$tmux_conf_theme_synchronized_fg]#[bg=$tmux_conf_theme_synchronized_bg]#[$tmux_conf_theme_synchronized_attr]#{?pane_synchronized,$tmux_conf_theme_synchronized,}%g")
@@ -1104,22 +1115,22 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #             set -g '@battery_vbar_palette' "$tmux_conf_battery_vbar_palette" \;\
 #             set -g '@battery_status_charging' "$tmux_conf_battery_status_charging" \;\
 #             set -g '@battery_status_discharging' "$tmux_conf_battery_status_discharging"
-#       status_right="#(cut -c3- ~/.tmux.conf | sh -s _battery)$status_right"
+#       status_right="#(cut -c3- #{TMUX_CONF} | sh -s _battery)$status_right"
 #       ;;
 #   esac
 #
 #   case "$status_left $status_right" in
 #     *'#{username}'*|*'#{hostname}'*|*'#{username_ssh}'*|*'#{hostname_ssh}'*)
 #       status_left=$(echo "$status_left" | sed \
-#         -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
-#         -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
-#         -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
-#         -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#         -e 's%#{username}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} false #D)%g' \
+#         -e 's%#{hostname}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} false #D)%g' \
+#         -e 's%#{username_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} true #D)%g' \
+#         -e 's%#{hostname_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} true #D)%g')
 #       status_right=$(echo "$status_right" | sed \
-#         -e 's%#{username}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} false #D)%g' \
-#         -e 's%#{hostname}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} false #D)%g' \
-#         -e 's%#{username_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _username #{pane_tty} true #D)%g' \
-#         -e 's%#{hostname_ssh}%#(cut -c3- ~/.tmux.conf | sh -s _hostname #{pane_tty} true #D)%g')
+#         -e 's%#{username}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} false #D)%g' \
+#         -e 's%#{hostname}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} false #D)%g' \
+#         -e 's%#{username_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _username #{pane_tty} true #D)%g' \
+#         -e 's%#{hostname_ssh}%#(cut -c3- #{TMUX_CONF} | sh -s _hostname #{pane_tty} true #D)%g')
 #       ;;
 #   esac
 #
@@ -1135,7 +1146,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #         -e 's/#\{(\?)?uptime_h/#\{\1@uptime_h/g' \
 #         -e 's/#\{(\?)?uptime_m/#\{\1@uptime_m/g' \
 #         -e 's/#\{(\?)?uptime_s/#\{\1@uptime_s/g')
-#       status_right="#(cut -c3- ~/.tmux.conf | sh -s _uptime)$status_right"
+#       status_right="#(cut -c3- #{TMUX_CONF} | sh -s _uptime)$status_right"
 #       ;;
 #   esac
 #
@@ -1145,12 +1156,12 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #         -e 's/#\{(\?)?loadavg/#\{\1@loadavg/g')
 #       status_right=$(echo "$status_right" | sed -E \
 #         -e 's/#\{(\?)?loadavg/#\{\1@loadavg/g')
-#       status_right="#(cut -c3- ~/.tmux.conf | sh -s _loadavg)$status_right"
+#       status_right="#(cut -c3- #{TMUX_CONF} | sh -s _loadavg)$status_right"
 #       ;;
 #   esac
 #
-#   status_left=$(echo "$status_left" | sed 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g')
-#   status_right=$(echo "$status_right" | sed 's%#{circled_session_name}%#(cut -c3- ~/.tmux.conf | sh -s _circled #S)%g')
+#   status_left=$(echo "$status_left" | sed 's%#{circled_session_name}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #S)%g')
+#   status_right=$(echo "$status_right" | sed 's%#{circled_session_name}%#(cut -c3- #{TMUX_CONF} | sh -s _circled #S)%g')
 #
 #   tmux  set -g status-left-length 1000 \; set -g status-left "$status_left" \;\
 #         set -g status-right-length 1000 \; set -g status-right "$status_right"