[PATCH v6 00/13] rust: generate_rust_analyzer.py: define host crates and scripts

[Tamir Duberstein <tamird@gmail.com>]

This series updates rust-project.json to differentiate between host and
target crates, where the former are used as dependencies of the `macros`
crate. Please see individual commit messages for details.

The first 3 commits contain mechanical formatting changes and are
optional. The series can be taken without them.

I avoided more significant formatting or changes where possible to
reduce the diff. Unfortunately `scripts/generate_rust_analyzer.py` is
not consistently formatted before nor after this series.

The 5th commit ("scripts: generate_rust_analyzer.py: use
str(pathlib.Path)") can also be considered optional. It removes an
inconsistency I noticed while working on this series and which occurs on
a line which churns in this series anyway.

The trailing commits can also be considered optional, as they can be
submitted separately. I included them in this series because they depend
on it, but they can be split out if this is preferred.

Signed-off-by: Tamir Duberstein <tamird@gmail.com>
---
Changes in v6:
- Rebase on v6.15-rc3.
- Extract local variable `crates_cfg`. (Daniel Almeida)
- Replace `map` with generators. (Trevor Gross)
- Replace `str.rstrip` with `Pathlib.path.stem`. (Trevor Gross)
- Use `Pathlib.path.read_text`. (Trevor Gross)
- Explain why `cfg_groups` only applies to workspace crates. (Trevor
  Gross)
- Link to v5: https://lore.kernel.org/r/20250325-rust-analyzer-host-v5-0-385e7f1e1e23@gmail.com

Changes in v5:
- Split remove `"is_proc_macro": false` into separate patch. (Daniel
  Almeida)
- Move whitespace change from "add type hints" to "add missing
  whitespace".
- Add patch to avoid default arguments and force keyword arguments.
- Add patch to add type hints for CLI parameters.
- Replace some instances of `str.replace` with `str.{l,r}strip`.
- Rebase on next-20250325. This must be rooted on linux-next because
  it's the only place rust-next and rust-fixes have been merged.
- Link to v4: https://lore.kernel.org/r/20250322-rust-analyzer-host-v4-0-1f51f9c907eb@gmail.com

Changes in v4:
- Fix typo (s/generate/generated/).
- Pull Trevor's suggested change into a separate patch with a
  Suggested-by tag.
- Add patch to avoid file descriptor leak.
- Add patch to generate rust-project.json entries for scripts/*.rs.
- Add patch to use `cfg_groups` to reduce size of `rust-project.json` by
  90%.
- Link to v3: https://lore.kernel.org/r/20250319-rust-analyzer-host-v3-0-311644ee23d2@gmail.com

Changes in v3:
- Rebase on linux-next. This is needed to pick up all the conflicts from
  both rust-next and rust-fixes.
- Drop `uv` from `mypy` command. (Trevor Gross)
- Add `--python-version 3.8` to `mypy` command. (Trevor Gross)
- `from typings import ...` directly. (Trevor Gross)
- Extract `build_crate` and `register_crate` to avoid peeking into
  `crates[-1]`. (Trevor Gross)
- Link to v2: https://lore.kernel.org/r/20250311-rust-analyzer-host-v2-0-30220e116511@gmail.com

Changes in v2:
- Rebased on "rust: fix rust-analyzer configuration for generated files" [1]
  Link: https://lore.kernel.org/all/CANiq72nv7nQ+1BinCHe2qsvwdUb-y9t7x=RGSppi_n9TBXNHpw@mail.gmail.com/ [1]
- Link to v1: https://lore.kernel.org/r/20250209-rust-analyzer-host-v1-0-a2286a2a2fa3@gmail.com

---
Tamir Duberstein (13):
      scripts: generate_rust_analyzer.py: add missing whitespace
      scripts: generate_rust_analyzer.py: use double quotes
      scripts: generate_rust_analyzer.py: add trailing comma
      scripts: generate_rust_analyzer.py: extract `{build,register}_crate`
      scripts: generate_rust_analyzer.py: drop `"is_proc_macro": false`
      scripts: generate_rust_analyzer.py: add type hints
      scripts: generate_rust_analyzer.py: avoid optional arguments
      scripts: generate_rust_analyzer.py: use str(pathlib.Path)
      scripts: generate_rust_analyzer.py: identify crates explicitly
      scripts: generate_rust_analyzer.py: define host crates
      scripts: generate_rust_analyzer.py: avoid FD leak
      scripts: generate_rust_analyzer.py: define scripts
      scripts: generate_rust_analyzer.py: use `cfg_groups`

 scripts/generate_rust_analyzer.py | 334 ++++++++++++++++++++++++++++----------
 1 file changed, 245 insertions(+), 89 deletions(-)
---
base-commit: 9d7a0577c9db35c4cc52db90bc415ea248446472
change-id: 20250209-rust-analyzer-host-43b108655578

Best regards,
-- 
Tamir Duberstein <tamird@gmail.com>