Updated build-frontend script, now uses deno, npm, bun in this order.

scripts/build-frontend.py

@@ -1,47 +1,48 @@
-import os
 import shutil
 import subprocess
-from contextlib import contextmanager
+from pathlib import Path
 from sys import stderr
 
 from hatchling.builders.hooks.plugin.interface import BuildHookInterface
 
 
-@contextmanager
-def chdir(path):
-    original = os.getcwd()
-    os.chdir(path)
-    try:
-        yield
-    finally:
-        os.chdir(original)
+def run(cmd, **kwargs):
+    display_cmd = [Path(cmd[0]).name, *cmd[1:]]
+    stderr.write(f"### {' '.join(display_cmd)}\n")
+    subprocess.run(cmd, check=True, **kwargs)
+
+
+def find_build_tool():
+    install = [
+        ("deno", "install", "--allow-scripts=npm:vue-demi"),
+        ("npm", "install"),
+        ("bun", "--bun", "install"),
+    ]
+
+    build = [
+        ("deno", "task", "build"),
+        ("npm", "run", "build"),
+        ("bun", "--bun", "run", "build"),
+    ]
+
+    for i, b in zip(install, build, strict=False):
+        if tool := shutil.which(i[0]):
+            return [tool, *i[1:]], [tool, *b[1:]]
+
+    raise RuntimeError("Deno, npm or Bun is required for building but none was found")
 
 
 class CustomBuildHook(BuildHookInterface):
     def initialize(self, version, build_data):
         super().initialize(version, build_data)
         stderr.write(">>> Building the frontend\n")
-        npm = None
-        bun = shutil.which("bun")
-        if bun is None:
-            npm = shutil.which("npm")
-            if npm is None:
-                raise RuntimeError(
-                    "Bun or NodeJS `npm` is required for building but neither was found"
-                )
-        # npm --prefix doesn't work on Windows, so we chdir instead
-        with chdir("frontend"):
-            try:
-                if npm:
-                    stderr.write("### npm install\n")
-                    subprocess.run([npm, "install"], check=True)  # noqa: S603
-                    stderr.write("\n### npm run build\n")
-                    subprocess.run([npm, "run", "build"], check=True)  # noqa: S603
-                else:
-                    assert bun
-                    stderr.write("### bun --bun install\n")
-                    subprocess.run([bun, "--bun", "install"], check=True)  # noqa: S603
-                    stderr.write("\n### bun --bun run build\n")
-                    subprocess.run([bun, "--bun", "run", "build"], check=True)  # noqa: S603
-            except Exception:
-                stderr.write("Error occurred while building frontend\n")
+
+        install_cmd, build_cmd = find_build_tool()
+
+        try:
+            run(install_cmd, cwd="frontend")
+            stderr.write("\n")
+            run(build_cmd, cwd="frontend")
+        except Exception as e:
+            stderr.write(f"Error occurred while building frontend: {e}\n")
+            raise