Add support for custom date format (nordtheme#61)

Added a new `@nord_tmux_date_format` theme configuration option that allows to customize the date format shown in the status content.

Closes nordthemeGH-60
Related to nordthemeGH-24

nord.tmux

@@ -13,30 +13,40 @@ NORD_TMUX_VERSION=0.3.0
 NORD_TMUX_STATUS_CONTENT_FILE="src/nord-status-content.conf"
 NORD_TMUX_STATUS_CONTENT_NO_PATCHED_FONT_FILE="src/nord-status-content-no-patched-font.conf"
 NORD_TMUX_STATUS_CONTENT_OPTION="@nord_tmux_show_status_content"
+NORD_TMUX_STATUS_CONTENT_DATE_FORMAT="@nord_tmux_date_format"
 NORD_TMUX_NO_PATCHED_FONT_OPTION="@nord_tmux_no_patched_font"
 _current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 __cleanup() {
   unset -v NORD_TMUX_COLOR_THEME_FILE NORD_TMUX_VERSION
   unset -v NORD_TMUX_STATUS_CONTENT_FILE NORD_TMUX_STATUS_CONTENT_NO_PATCHED_FONT_FILE
   unset -v NORD_TMUX_STATUS_CONTENT_OPTION NORD_TMUX_NO_PATCHED_FONT_OPTION
+  unset -v NORD_TMUX_STATUS_CONTENT_DATE_FORMAT
   unset -v _current_dir
   unset -f __load __cleanup
   tmux set-environment -gu NORD_TMUX_STATUS_TIME_FORMAT
+  tmux set-environment -gu NORD_TMUX_STATUS_DATE_FORMAT
 }
 
 __load() {
   tmux source-file "$_current_dir/$NORD_TMUX_COLOR_THEME_FILE"
 
   local status_content=$(tmux show-option -gqv "$NORD_TMUX_STATUS_CONTENT_OPTION")
   local no_patched_font=$(tmux show-option -gqv "$NORD_TMUX_NO_PATCHED_FONT_OPTION")
+  local date_format=$(tmux show-option -gqv "$NORD_TMUX_STATUS_CONTENT_DATE_FORMAT")
 
   if [ "$(tmux show-option -gqv "clock-mode-style")" == '12' ]; then
     tmux set-environment -g NORD_TMUX_STATUS_TIME_FORMAT "%I:%M %p"
   else
     tmux set-environment -g NORD_TMUX_STATUS_TIME_FORMAT "%H:%M"
   fi
 
+  if [ -z "$date_format" ]; then
+    tmux set-environment -g NORD_TMUX_STATUS_DATE_FORMAT "%Y-%m-%d"
+  else
+    tmux set-environment -g NORD_TMUX_STATUS_DATE_FORMAT "$date_format"
+  fi
+
   if [ "$status_content" != "0" ]; then
     if [ "$no_patched_font" != "1" ]; then
       tmux source-file "$_current_dir/$NORD_TMUX_STATUS_CONTENT_FILE"

src/nord-status-content-no-patched-font.conf

@@ -16,7 +16,7 @@ set -g @prefix_highlight_copy_mode_attr "fg=black,bg=brightcyan"
 #+--------+
 #+--- Bars ---+
 set -g status-left "#[fg=black,bg=blue,bold] #S "
-set -g status-right "#{prefix_highlight}#[fg=white,bg=brightblack] %Y-%m-%d #[fg=white,bg=brightblack,nobold,noitalics,nounderscore]|#[fg=white,bg=brightblack] ${NORD_TMUX_STATUS_TIME_FORMAT} #[fg=cyan,bg=brightblack,nobold,noitalics,nounderscore] #[fg=black,bg=cyan,bold] #H "
+set -g status-right "#{prefix_highlight}#[fg=white,bg=brightblack] ${NORD_TMUX_STATUS_DATE_FORMAT} #[fg=white,bg=brightblack,nobold,noitalics,nounderscore]|#[fg=white,bg=brightblack] ${NORD_TMUX_STATUS_TIME_FORMAT} #[fg=cyan,bg=brightblack,nobold,noitalics,nounderscore] #[fg=black,bg=cyan,bold] #H "
 
 #+--- Windows ---+
 set -g window-status-format " #[fg=white,bg=brightblack]#I #[fg=white,bg=brightblack]#W #F"

src/nord-status-content.conf

@@ -37,7 +37,7 @@ set -g @cpu_high_bg_color "#[bg=colour131]"
 #+--- Bars ---+
 #set -g status-left "#[fg=black,bg=blue,bold] #S#[fg=blue,bg=black,nobold,noitalics,nounderscore]"
 set -g status-left "#[fg=colour188,bg=colour67,bold] #S #[fg=colour67,bg=colour109,nobold,noitalics,nounderscore]#[fg=colour23,bg=colour109] #U@#h #[fg=colour109,bg=black] "
-set -g status-right "#{prefix_highlight}#[bg=black,nobold,noitalics,nounderscore]#{cpu_fg_color}#[fg=colour23]#{cpu_bg_color} #{cpu_icon} #{cpu_percentage} #[fg=colour109,nobold,noitalics,nounderscore]#{cpu_bg_color}#[fg=colour23,bg=colour109]#{load_average} #[fg=colour67,bg=colour109,nobold,noitalics,nounderscore]#[fg=colour188,bg=colour67,bold] %m/%d ${NORD_TMUX_STATUS_TIME_FORMAT} "
+set -g status-right "#{prefix_highlight}#[bg=black,nobold,noitalics,nounderscore]#{cpu_fg_color}#[fg=colour23]#{cpu_bg_color} #{cpu_icon} #{cpu_percentage} #[fg=colour109,nobold,noitalics,nounderscore]#{cpu_bg_color}#[fg=colour23,bg=colour109]#{load_average} #[fg=colour67,bg=colour109,nobold,noitalics,nounderscore]#[fg=colour188,bg=colour67,bold] ${NORD_TMUX_STATUS_DATE_FORMAT} ${NORD_TMUX_STATUS_TIME_FORMAT} "
 
 #+--- Windows ---+
 set -g window-status-format "#[fg=black,bg=black,nobold,noitalics,nounderscore] #[fg=colour243,bg=black]#I #[fg=colour243,bg=black,nobold,noitalics,nounderscore] #[fg=colour243,bg=black]#W #[fg=black,bg=black,nobold,noitalics,nounderscore]"