tmux: move plugins to config

dot_config/tmux/plugins/tmux-navigate/executable_tmux-navigate.tmux

@@ -0,0 +1,112 @@
+#!/bin/sh
+#
+# Intelligently navigate tmux panes and Vim splits using the same keys.
+# This also supports SSH tunnels where Vim is running on a remote host.
+#
+#      +-------------+------------+-----------------------------+
+#      | inside Vim? | is Zoomed? | Action taken by key binding |
+#      +-------------+------------+-----------------------------+
+#      | No          | No         | Focus directional tmux pane |
+#      | No          | Yes        | Nothing: ignore key binding |
+#      | Yes         | No         | Seamlessly focus Vim / tmux |
+#      | Yes         | Yes        | Focus directional Vim split |
+#      +-------------+------------+-----------------------------+
+#
+# See https://sunaku.github.io/tmux-select-pane.html for documentation.
+
+get_tmux_option() { tmux show-option -gqv "$@" | grep . ;}
+
+navigate=$(sed '1,/^exit #.*$/d; s/^ *#.*//; /^$/d' "$0")
+navigate_left=" $navigate L 'tmux select-pane -L'  'tmux send-keys C-w h'"
+navigate_down=" $navigate D 'tmux select-pane -D'  'tmux send-keys C-w j'"
+navigate_up="   $navigate U 'tmux select-pane -U'  'tmux send-keys C-w k'"
+navigate_right="$navigate R 'tmux select-pane -R'  'tmux send-keys C-w l'"
+navigate_back=" $navigate l 'tmux select-pane -l || tmux select-pane -t1'\
+                            'tmux send-keys C-w p'                       \
+                            'pane_is_zoomed'                             "
+
+for direction in left down up right back; do
+  option="@navigate-$direction"
+  handler="navigate_$direction"
+  if key=$(get_tmux_option "$option"); then
+    eval "action=\$$handler" # resolve handler variable
+    tmux bind-key $key run-shell -b ": $option; $action"
+  fi
+done
+
+exit #------------------------------------------------------------------------
+
+# interpolate tmux values ONCE at "compile time"
+# (this is the reason for the double ## escapes)
+pane_title="#{q:pane_title}"
+pane_current_command="#{q:pane_current_command}"
+window_zoomed_flag=#{window_zoomed_flag}
+
+pane_is_zoomed() {
+  test $window_zoomed_flag -eq 1
+}
+
+command_is_vim() {
+  case "${1%% *}" in
+    (vi|?vi|vim*|?vim*|view|?view|vi??*)
+      true
+      ;;
+    (*)
+      false
+      ;;
+  esac
+}
+
+pane_contains_vim() {
+  command_is_vim "$pane_current_command" ||
+  command_is_vim "$pane_title"
+}
+
+pane_contains_neovim_terminal() {
+  case "$pane_title" in
+    (nvim?term://*)
+      true
+      ;;
+    (*)
+      false
+      ;;
+  esac
+}
+
+navigate() {
+  tmux_navigation_direction=$1
+  tmux_navigation_command=$2
+  vim_navigation_command=$3
+  vim_navigation_only_if=${4:-true}
+
+  # try navigating Vim
+  if pane_contains_vim && eval "$vim_navigation_only_if"; then
+
+    # parse navigable directions from Vim's title
+    vim_navigable_directions=${pane_title####* }
+
+    # if desired direction is navigable in Vim...
+    case "l$vim_navigable_directions" in (*$tmux_navigation_direction*)
+
+      # leave insert mode in NeoVim terminal
+      if pane_contains_neovim_terminal; then
+        tmux send-keys C-\\ C-n
+      fi
+
+      # navigate Vim and don't fall through
+      eval "$vim_navigation_command"
+      return
+
+      ;;
+    esac
+
+    # otherwise fall through into tmux navigation
+  fi
+
+  # try navigating tmux
+  if ! pane_is_zoomed; then
+    eval "$tmux_navigation_command"
+  fi
+}
+
+navigate