Merge pull request #76 from AliciaBytes/nushell

Add some initial nushell setup

dot_config/nushell/config.nu

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+$enf.config = {
+    show_banner: false,
+}

dot_config/nushell/env.nu

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+$env.EDITOR = ["code", "--wait"]

dot_config/nushell/scripts/starship.nu

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+# this file is both a valid
+# - overlay which can be loaded with `overlay use starship.nu`
+# - module which can be used with `use starship.nu`
+# - script which can be used with `source starship.nu`
+export-env { $env.STARSHIP_SHELL = "nu"; load-env {
+    STARSHIP_SESSION_KEY: (random chars -l 16)
+    PROMPT_MULTILINE_INDICATOR: (
+        ^/home/aliciabytes/.cargo/bin/starship prompt --continuation
+    )
+
+    # Does not play well with default character module.
+    # TODO: Also Use starship vi mode indicators?
+    PROMPT_INDICATOR: ""
+
+    PROMPT_COMMAND: {||
+        # jobs are not supported
+        (
+            ^/home/aliciabytes/.cargo/bin/starship prompt
+                --cmd-duration $env.CMD_DURATION_MS
+                $"--status=($env.LAST_EXIT_CODE)"
+                --terminal-width (term size).columns
+        )
+    }
+
+    config: ($env.config? | default {} | merge {
+        render_right_prompt_on_last_line: true
+    })
+
+    PROMPT_COMMAND_RIGHT: {||
+        (
+            ^/home/aliciabytes/.cargo/bin/starship prompt
+                --right
+                --cmd-duration $env.CMD_DURATION_MS
+                $"--status=($env.LAST_EXIT_CODE)"
+                --terminal-width (term size).columns
+        )
+    }
+}}