Allow all lints to be configured via `clippy.toml`

[amab8901]

Description

I have a long list of lints in Cargo.toml. But moving them to clippy.toml deactivates them. Would be nice to have it moved into clippy.toml which I place inside .cargo folder (along with other configs like deny.toml, audit.toml, rustfmt.toml) to keep the Cargo.toml file clean and focused on dependencies.

Here is my clippy config in Cargo.toml:

[lints.clippy]
let_and_return = "allow"
similar_names = "allow"
too_many_arguments = "allow"
missing_errors_doc = "allow"
pub_with_shorthand = "allow"
missing_docs_in_private_items = "allow"
field_scoped_visibility_modifiers = "allow"
arbitrary_source_item_ordering = "warn"
self_named_module_files = "allow"
single_char_lifetime_names = "allow"
single_call_fn = "allow"
allow_attributes_without_reason = "allow"
unused_trait_names = "allow"
blanket_clippy_restriction_lints = "allow"
allow_attributes = "allow"
decimal_literal_representation = "allow"
implicit_return = "allow"
question_mark_used = "allow"
multiple_inherent_impl = "allow"
needless_pass_by_ref_mut = "warn"
shadow_reuse = "warn"
shadow_unrelated = "allow"
pattern_type_mismatch = "allow"
clone_on_ref_ptr = "allow"
print_stdout = "allow"
std_instead_of_core = "allow"
std_instead_of_alloc = "allow"
missing_inline_in_public_items = "allow"
integer_division_remainder_used = "allow"
absolute_paths = "allow"
exit = "allow"
arithmetic_side_effects = "allow"
string_to_string = "warn"
infinite_loop = "allow"
wildcard_enum_match_arm = "allow"
str_to_string = "warn"
let_underscore_must_use = "warn"
unwrap_used = "allow"
as_conversions = "warn"
default_numeric_fallback = "allow"
else_if_without_else = "allow"
min_ident_chars = "warn"
separated_literal_suffix = "allow"
unseparated_literal_suffix = "warn"
verbose_file_reads = "allow"
needless_raw_strings = "warn"
missing_trait_methods = "allow"
integer_division = "allow"
empty_structs_with_brackets = "warn"
unneeded_field_pattern = "warn"
renamed_function_params = "allow"
indexing_slicing = "warn"
print_stderr = "allow"
use_debug = "allow"
let_underscore_untyped = "warn"
unreachable = "warn"
string_add = "allow"
big_endian_bytes = "allow"
float_arithmetic = "allow"
semicolon_outside_block = "allow"
panic_in_result_fn = "warn"
map_with_unused_argument_over_ranges = "warn"
iter_over_hash_type = "allow"
redundant_type_annotations = "warn"
shadow_same = "warn"
get_unwrap = "warn"
non_ascii_literal = "allow"
if_then_some_else_none = "warn"
undocumented_unsafe_blocks = "allow"
panic = "allow"
pathbuf_init_then_push = "warn"
modulo_arithmetic = "allow"
string_slice = "allow"
redundant_pub_crate = "allow"
option_if_let_else = "allow"
use_self = "warn"
missing_const_for_fn = "warn"
significant_drop_tightening = "warn"
iter_on_single_items = "allow"
or_fun_call = "warn"
redundant_clone = "warn"
branches_sharing_code = "warn"
tuple_array_conversions = "allow"
literal_string_with_formatting_args = "warn"
case_sensitive_file_extension_comparisons = "allow"

pedantic = { level = "warn", priority = -1 }
restriction = { level = "warn", priority = -1 }
nursery = { level = "warn", priority = -1 }

Version

rustc 1.87.0 (17067e9ac 2025-05-09)
binary: rustc
commit-hash: 17067e9ac6d7ecb70e50f92c1944e545188d2359
commit-date: 2025-05-09
host: x86_64-unknown-linux-gnu
release: 1.87.0
LLVM version: 20.1.1

Additional Labels

No response

[odysa]

Can I work on this?

• Read configs from clippy.toml, merge with configs in cargo.toml
• Add documentation

[odysa]

Some lints can be configured in a TOML file named `clippy.toml` or `.clippy.toml`, which is searched for in:
1. The directory specified by the `CLIPPY_CONF_DIR` environment variable, or
2. The directory specified by the
[CARGO_MANIFEST_DIR](https://doc.rust-lang.org/cargo/reference/environment-variables.html) environment variable, or
3. The current directory.

I checked the doc, we just need to search .cargo/?