build: type-check with bun check

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
           persist-credentials: false
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.4.2
+          bun-version: 1.4.3
       - run: bun install --frozen-lockfile
       - name: Install shellcheck and shfmt
         run: |
@@ -44,7 +44,7 @@ jobs:
           persist-credentials: false
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.4.2
+          bun-version: 1.4.3
       - run: bun install --frozen-lockfile
       - name: Install shellcheck and shfmt
         shell: pwsh

CONTRIBUTING.md

@@ -91,7 +91,8 @@ an older result with the version it was measured on.
    to Sync Server, then Deploy. When the build test passes, click Make Release
    and enter `X.Y.Z`. The saved build spec (build steps
    `["npm install -g bun@1.4.2"]`, CMD `["bun", "scripts/glama.ts"]`) needs a
-   change only when the Bun version CI uses or `scripts/glama.ts` changes.
+   change only when the Bun version the server needs (`engines.bun` in `package.json`) or
+   `scripts/glama.ts` changes. CI runs a newer Bun for `bun check`, which the server does not need.
 6. Check every accepted listing in the next section. Update by hand any that
    still shows an older version or outdated details.
 

README.md

@@ -468,6 +468,8 @@ bun test
 bun run check   # format, lint and type check
 ```
 
+`bun run check` type-checks with Bun's `bun check`, which needs Bun 1.4.3 or later.
+
 `bun scripts/build.ts --if-stale` rebuilds the binary only when a source file,
 the dependency manifest or lockfile, the bytecode-order profile, the build
 script, or the Bun version changed. Restart the unit

package.json

@@ -8,11 +8,11 @@
   "scripts": {
     "build": "bun scripts/build.ts",
     "test": "bun test",
-    "typecheck": "tsc --noEmit -p tsconfig.json",
+    "typecheck": "bun scripts/typecheck.ts",
     "lint": "oxlint --deny-warnings .",
     "fmt": "oxfmt",
     "check:published": "bun scripts/check-published.ts",
-    "check": "bun scripts/check-release.ts && oxfmt --check && oxlint --deny-warnings . && tsc --noEmit -p tsconfig.json && bun run check:shell",
+    "check": "bun scripts/check-release.ts && oxfmt --check && oxlint --deny-warnings . && bun run typecheck && bun run check:shell",
     "check:shell": "bun scripts/check-shell.ts"
   },
   "devDependencies": {

scripts/typecheck.ts

@@ -0,0 +1,15 @@
+// Type check with Bun's built-in `bun check` (Bun 1.4.3 or later). A `check` script in
+// package.json shadows the built-in in any directory that script belongs to, so the built-in runs
+// from the temporary directory with an absolute project path.
+import { tmpdir } from "node:os";
+import { resolve } from "node:path";
+
+const proc = Bun.spawnSync(
+  [process.execPath, "check", "-p", resolve(import.meta.dir, "..", "tsconfig.json")],
+  {
+    cwd: tmpdir(),
+    stdout: "inherit",
+    stderr: "inherit",
+  },
+);
+process.exit(proc.exitCode);