[bug] pdm fails to build whl when use_uv is True

[monchin]

• I have searched the issue tracker and believe that this is not a duplicate.

Make sure you run commands with -v flag before pasting the output.

Steps to reproduce

set pdm config use_uv false, then make a pdm project, and run pdm build, it fails with log

pdm.termui: Preparing environment(Isolated mode) for PEP 517 build...
pdm.termui: Error occurs
Traceback (most recent call last):
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\termui.py", line 260, in logging
    yield logger
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\cli\commands\build.py", line 62, in do_build
    sdist_file = SdistBuilder(project.root, project.environment).build(dest)
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\builders\base.py", line 84, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\builders\sdist.py", line 14, in build
    self.install(self._requires, shared=True)
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\builders\base.py", line 322, in install
    install_requirements(missing, env)
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\installers\core.py", line 45, in install_requirements
    syncer.synchronize()
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\installers\uv.py", line 39, in synchronize
    builder.build_uv_lock(include_self=self.install_self)
  File "C:\Users\c.men\AppData\Roaming\pdm\venv\lib\site-packages\pdm\formats\uv.py", line 100, in build_uv_lock
    group = req.groups[0]
IndexError: list index out of range

Actual behavior

It fails

Expected behavior

It successes just as use_uv is False

Environment Information

I'm using pdm==2.19.3. I checked the source code, and found that when building whl, the Synchronizer's requirements would be just pdm-backend, with groups=[], so req.groups[0] would be out of range. In my opinion, the simplest way is to run uv build when use_uv is True, it seems uv build can recognize the contents in [tool.pdm.build] such as excludes, is-purelib, etc. But uv build doesn't support --no-sdist, so if pdm build --no-sdist, tar.gz should be removed after uv build is called.

[monchin]

I have implemented the solution to directly use uv build when use_uv is true here. If it is ok, I'm glad to make a PR.

[frostming]

Can you reproduce it on the main branch?

[monchin]

Can you reproduce it on the main branch?

Yes, I can reproduce it on 4401ff5

[frostming]

@monchin Thanks, can you contribute the PR

[monchin]

@monchin Thanks, can you contribute the PR

My pleasure. I have made the PR.

And I also found that pdm build -h shows that there is a --quiet arg, but it seems useless in build. uv build is quite verbose but it would output nothing if -q is added, so maybe we can add quiet parameter in do_build