feat(windows): add first-class pwsh/powershell support (#16069)

packages/opencode/test/pty/pty-shell.test.ts

@@ -0,0 +1,59 @@
+import { describe, expect, test } from "bun:test"
+import { Instance } from "../../src/project/instance"
+import { Pty } from "../../src/pty"
+import { Shell } from "../../src/shell/shell"
+import { tmpdir } from "../fixture/fixture"
+
+Shell.preferred.reset()
+
+describe("pty shell args", () => {
+  if (process.platform !== "win32") return
+
+  const ps = Bun.which("pwsh") || Bun.which("powershell")
+  if (ps) {
+    test(
+      "does not add login args to pwsh",
+      async () => {
+        await using dir = await tmpdir()
+        await Instance.provide({
+          directory: dir.path,
+          fn: async () => {
+            const info = await Pty.create({ command: ps, title: "pwsh" })
+            try {
+              expect(info.args).toEqual([])
+            } finally {
+              await Pty.remove(info.id)
+            }
+          },
+        })
+      },
+      { timeout: 30000 },
+    )
+  }
+
+  const bash = (() => {
+    const shell = Shell.preferred()
+    if (Shell.name(shell) === "bash") return shell
+    return Shell.gitbash()
+  })()
+  if (bash) {
+    test(
+      "adds login args to bash",
+      async () => {
+        await using dir = await tmpdir()
+        await Instance.provide({
+          directory: dir.path,
+          fn: async () => {
+            const info = await Pty.create({ command: bash, title: "bash" })
+            try {
+              expect(info.args).toEqual(["-l"])
+            } finally {
+              await Pty.remove(info.id)
+            }
+          },
+        })
+      },
+      { timeout: 30000 },
+    )
+  }
+})