fixed issue with zellij misbehaving with kitty-protocoll.

nushell/.config/nushell/config.nu

@@ -1,6 +1,6 @@
 # Nushell Config File
 #
-# version = "0.90.1"
+# version = "0.91.0"
 
 # For more information on defining custom themes, see
 # https://www.nushell.sh/book/coloring_and_theming.html
@@ -249,7 +249,8 @@ $env.config = {
     shell_integration: true # enables terminal shell integration. Off by default, as some terminals have issues with this.
     render_right_prompt_on_last_line: false # true or false to enable or disable right prompt to be rendered on last line of the prompt.
     # enables keyboard enhancement protocol implemented by kitty console, only if your terminal support this. 
-    use_kitty_protocol: ($env.TERM == 'xterm-kitty')
+    # Zellij does not modify the term var, so we have to special-case it.
+    use_kitty_protocol: ($env.TERM == 'xterm-kitty' and $env.ZELLIJ? == null)
     highlight_resolved_externals: true # true enables highlighting of external commands in the repl resolved by which.
 
     plugins: {} # Per-plugin configuration. See https://www.nushell.sh/contributor-book/plugins.html#configuration.

nushell/.config/nushell/env.nu

@@ -1,25 +1,13 @@
 # Nushell Environment Config File
 #
-# version = "0.90.1"
+# version = "0.91.0"
 
 def create_left_prompt [] {
-    let home =  $nu.home-path
+    let dir = match (do --ignore-shell-errors { $env.PWD | path relative-to $nu.home-path }) {
-
+        null => $env.PWD
-    # Perform tilde substitution on dir
+        '' => '~'
-    # To determine if the prefix of the path matches the home dir, we split the current path into
+        $relative_pwd => ([~ $relative_pwd] | path join)
-    # segments, and compare those with the segments of the home dir. In cases where the current dir
+    }
-    # is a parent of the home dir (e.g. `/home`, homedir is `/home/user`), this comparison will
-    # also evaluate to true. Inside the condition, we attempt to str replace `$home` with `~`.
-    # Inside the condition, either:
-    # 1. The home prefix will be replaced
-    # 2. The current dir is a parent of the home dir, so it will be uneffected by the str replace
-    let dir = (
-        if ($env.PWD | path split | zip ($home | path split) | all { $in.0 == $in.1 }) {
-            ($env.PWD | str replace $home "~")
-        } else {
-            $env.PWD
-        }
-    )
 
     let path_color = (if (is-admin) { ansi red_bold } else { ansi green_bold })
     let separator_color = (if (is-admin) { ansi light_red_bold } else { ansi light_green_bold })
@@ -33,7 +21,7 @@ def create_right_prompt [] {
     let time_segment = ([
         (ansi reset)
         (ansi magenta)
-        (date now | format date '%x %X %p') # try to respect user's locale
+        (date now | format date '%x %X') # try to respect user's locale
     ] | str join | str replace --regex --all "([/:])" $"(ansi green)${1}(ansi magenta)" |
         str replace --regex --all "([AP]M)" $"(ansi magenta_underline)${1}")
 
@@ -48,14 +36,15 @@ def create_right_prompt [] {
 
 # Use nushell functions to define your right and left prompt
 $env.PROMPT_COMMAND = {|| create_left_prompt }
+# FIXME: This default is not implemented in rust code as of 2023-09-08.
 $env.PROMPT_COMMAND_RIGHT = {|| create_right_prompt }
 
 # The prompt indicators are environmental variables that represent
 # the state of the prompt
-$env.PROMPT_INDICATOR = {'> '}
+$env.PROMPT_INDICATOR = {|| "> " }
-$env.PROMPT_INDICATOR_VI_INSERT = {'> '}
+$env.PROMPT_INDICATOR_VI_INSERT = {|| "> " }
-$env.PROMPT_INDICATOR_VI_NORMAL = {': '}
+$env.PROMPT_INDICATOR_VI_NORMAL = {|| ": " }
-$env.PROMPT_MULTILINE_INDICATOR = {'::: '}
+$env.PROMPT_MULTILINE_INDICATOR = {|| "::: " }
 
 # If you want previously entered commands to have a different prompt from the usual one,
 # you can uncomment one or more of the following lines.
@@ -102,9 +91,18 @@ def is-installed [ app: string ] {
 
 # To add entries to PATH (on Windows you might use Path), you can use the following pattern:
 # $env.PATH = ($env.PATH | split row (char esep) | prepend '/some/path')
-$env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join ".local/bin/"))
+# $env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join ".local/bin/"))
-$env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join ".cargo/bin/"))
+# $env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join ".cargo/bin/"))
-$env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join "opt"))
+# $env.PATH = ($env.PATH | split row (char esep) | append ($nu.home-path | path join "opt"))
+# An alternate way to add entries to $env.PATH is to use the custom command `path add`
+# which is built into the nushell stdlib:
+use std "path add"
+$env.PATH = ($env.PATH | split row (char esep))
+path add ($env.HOME | path join ".cargo " "bin")
+path add ($env.HOME | path join ".local" "bin")
+path add ('/opt')
+$env.PATH = ($env.PATH | uniq)
+
 $env.PAGER = less
 $env.LESS = '-R'
 $env.LESSHISTFILE = '/dev/null'