ci(env): test generated env.nu with Nushell

.github/scripts/test-nushell-env.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+: "${VP_BIN_UNDER_TEST:?Set VP_BIN_UNDER_TEST to the vp binary to test}"
+
+nu_bin="$(command -v "${NU_BIN:-nu}")"
+test_root="$(mktemp -d)"
+trap 'rm -rf -- "$test_root"' EXIT
+
+test_home="$test_root/vp home with spaces"
+
+VP_HOME="$test_home" "$VP_BIN_UNDER_TEST" env setup --refresh >/dev/null
+
+(
+  cd "$test_home"
+  env -u VP_HOME \
+    EXPECTED_VP_HOME="$test_home" \
+    PATH="/usr/bin:/bin" \
+    "$nu_bin" --commands '
+      source env.nu
+
+      let expected_home = ($env.EXPECTED_VP_HOME | path expand --no-symlink)
+      if $env.VP_HOME != $expected_home {
+        error make {
+          msg: $"VP_HOME mismatch: expected ($expected_home), got ($env.VP_HOME)"
+        }
+      }
+
+      let expected_bin = ($expected_home | path join "bin")
+      let actual_bin = ($env.PATH | first)
+      if $actual_bin != $expected_bin {
+        error make {
+          msg: $"PATH mismatch: expected first entry ($expected_bin), got ($actual_bin)"
+        }
+      }
+
+      let vp_output = (vp --version)
+      if $env.LAST_EXIT_CODE != 0 {
+        error make {
+          msg: "vp --version failed through the Nushell wrapper"
+        }
+      }
+      if ($vp_output | is-empty) {
+        error make {
+          msg: "vp --version returned no output"
+        }
+      }
+    '
+)

.github/workflows/ci.yml

@@ -943,6 +943,17 @@ jobs:
       - name: Install Global CLI vp
         run: pnpm bootstrap-cli:ci
 
+      # https://github.com/marketplace/actions/setup-nu
+      - name: Install Nushell
+        if: runner.os == 'Linux'
+        uses: hustcer/setup-nu@ccd5bb5426b05a32009c2ba967946231f3919c97 # v3.25
+        with:
+          version: '*'
+
+      - name: Test generated Nushell environment
+        if: runner.os == 'Linux'
+        run: VP_BIN_UNDER_TEST="$HOME/.vite-plus/bin/vp" .github/scripts/test-nushell-env.sh
+
       # Provision the managed runtime once into the real home so cases can
       # seed from it (seed-runtime) instead of each downloading ~50MB.
       # Best-effort: without a seed, cases that need the runtime download it