{cwd} can optionally shorten only repo parent dir.

flexprompt_modules.lua

@@ -158,6 +158,9 @@ end
 --      - "rootsmart" is the full path, with parent of git repo not colored.
 --
 -- The 'shorten' option abbreviates parent directories to only the first letter.
+-- The 'shorten' option may optionally be followed by "=rootsmart" to abbreviate
+-- only the repo's parent directories when in a git repo (otherwise abbreviate
+-- all the parent directories).
 --
 -- The default type is "rootsmart" if not specified.
 
@@ -175,11 +178,16 @@ local function get_folder_name(dir)
     return dir
 end
 
-local function abbreviate_parents(dir, ref)
-    local tmp, suffix = path.toparent(dir)
+local function abbreviate_parents(dir, all)
+    local tmp, suffix
+    if all then
+        tmp = dir
+    else
+        tmp, suffix = path.toparent(dir)
+    end
     tmp = tmp:gsub("^([!-.0-%][-~])[^:/\\]*", "%1")
     tmp = tmp:gsub("([/\\][!-.0-%][-~])[^/\\]*", "%1")
-    if suffix ~= "" then
+    if suffix and suffix ~= "" then
         tmp = path.join(tmp, suffix)
     end
     return tmp
@@ -197,7 +205,11 @@ local function render_cwd(args)
         color = flexprompt.use_best_color("blue", "38;5;33")
     end
     color, altcolor = flexprompt.parse_colors(colors, color, altcolor)
-    local shorten = flexprompt.parse_arg_keyword(args, "s", "shorten")
+
+    local shorten = flexprompt.parse_arg_keyword(args, "s", "shorten") and "all"
+    if not shorten then
+        shorten = flexprompt.parse_arg_token(args, "s", "shorten")
+    end
 
     local wizard = flexprompt.get_wizard_state()
     local cwd = wizard and wizard.cwd or os.getcwd()
@@ -240,12 +252,14 @@ local function render_cwd(args)
                     local smart_dir = get_folder_name(git_wks_parent) .. appended_dir
                     if type == "rootsmart" then
                         local rootcolor = flexprompt.parse_arg_token(args, "rc", "rootcolor")
+                        local parent = cwd:sub(1, #cwd - #smart_dir)
                         if shorten then
-                            cwd = abbreviate_parents(cwd)
-                            smart_dir = abbreviate_parents(smart_dir)
+                            parent = abbreviate_parents(parent, true--[[all]])
+                            if shorten ~= "smartroot" then
+                                smart_dir = abbreviate_parents(smart_dir)
+                            end
                             shorten = nil
                         end
-                        local parent = cwd:sub(1, #cwd - #smart_dir)
                         cwd = flexprompt.make_fluent_text(parent, rootcolor or true) .. smart_dir
                     else
                         cwd = smart_dir