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utils: Add utils_macros: Implement ValueEnumDisplay and ValueEnumFromStr macros

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Add new derive macros ValueEnumDisplay and ValueEnumFromStr which can be
used to derive 'Display' and 'FromStr' for enums implementing
'clap::ValueEnum'. It helps in reducing boilerplate code and keep things
in sync.

Assisted-by: IBM Bob:1.0.4
Signed-off-by: Marc Hartmayer <marc@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2026-05-27 15:56:07 +02:00
committed by Steffen Eiden
parent 173a055372
commit 618e22e38b
6 changed files with 191 additions and 0 deletions
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2
rust/utils/Cargo.toml
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@@ -12,5 +12,7 @@ log = { version = "0.4.29", features = ["std", "release_max_level_debug"] }
pv = { path = "../pv", package = "s390_pv" }
serde = { version = "1.0.228"}
utils_macros = { path = "../utils_macros" }
[dev-dependencies]
serde_json = "1.0.149"

2
rust/utils/src/lib.rs
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@@ -13,6 +13,8 @@ mod log;
mod tmpfile;
pub use ::log::LevelFilter;
// Re-export procedural macros from utils_macros
pub use utils_macros::{ValueEnumDisplay, ValueEnumFromStr};
pub use crate::cli::{
combined_path_opt, combined_path_req, get_reader_from_cli_file_arg,