--version no longer works without <HEADER> argument

[jbeich]

Regressed by #2656. Found via mesa@1cc26e8b6657 due to mesonbuild/meson@0f2f87a00347

$ bindgen --help | fgrep -A1 -- --version
  -V, --version
          Prints the version, and exits

$ bindgen --version
error: the following required arguments were not provided:
  <HEADER>

Usage: bindgen <FLAGS> <OPTIONS> <HEADER> -- <CLANG_ARGS>...

For more information, try '--help'.

$ bindgen --version /dev/null
bindgen 0.69.0

Previously,

$ bindgen --version
bindgen 0.68.1

[orhun]

Also hit this while generating shell completions:

$ bindgen --generate-shell-completions bash

error: the following required arguments were not provided:
  <HEADER>

Usage: bindgen <FLAGS> <OPTIONS> <HEADER> -- <CLANG_ARGS>...

For more information, try '--help'.

[erik-bershel]

Hey @orhun! How long it will take theoretically to fix this issue (to publish release)? We are blocked with an image generation for actions with this bug and thinking now about what to do next. To pin version of cli or to wait new release...

[orhun]

Hey @erik-bershel, I'm just an outside contributor so I'm not sure. The PR should be ready to go though.

[tshepang]

@erik-bershel a fresh release is available with the issue fixed

[jbeich]

Please, reopen. Regressed again by #2984 (4d80917):

$ bindgen --version /dev/null
bindgen 0.71.0
$ bindgen --version
error: the following required arguments were not provided:
  <HEADER>

Usage: bindgen <FLAGS> <OPTIONS> <HEADER> -- <CLANG_ARGS>...

For more information, try '--help'.