[add] Add nushell

config/nushell/conf.d/starship.nu

@@ -0,0 +1,27 @@
+let-env STARSHIP_SHELL = "nu"
+let-env STARSHIP_SESSION_KEY = (random chars -l 16)
+let-env PROMPT_MULTILINE_INDICATOR = (^/opt/homebrew/bin/starship prompt --continuation)
+
+# Does not play well with default character module.
+# TODO: Also Use starship vi mode indicators?
+let-env PROMPT_INDICATOR = ""
+
+let-env PROMPT_COMMAND = { ||
+    # jobs are not supported
+    let width = (term size).columns
+    ^/opt/homebrew/bin/starship prompt $"--cmd-duration=($env.CMD_DURATION_MS)" $"--status=($env.LAST_EXIT_CODE)" $"--terminal-width=($width)"
+}
+
+# Whether we have config items
+let has_config_items = (not ($env | get -i config | is-empty))
+
+let-env config = if $has_config_items {
+    $env.config | upsert render_right_prompt_on_last_line true
+} else {
+    {render_right_prompt_on_last_line: true}
+}
+
+let-env PROMPT_COMMAND_RIGHT = { ||
+    let width = (term size).columns
+    ^/opt/homebrew/bin/starship prompt --right $"--cmd-duration=($env.CMD_DURATION_MS)" $"--status=($env.LAST_EXIT_CODE)" $"--terminal-width=($width)"
+}