Crate optional_log
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§What
This crate provides an optional wrapper around the “log” crate, which allows you to provide an optional “log” feature for you crates easily.
§How
In your “Cargo.toml”:
[dependencies]
log = { version = "0.4", optional = true }
optional-log = "0.1"
[feature]
log = ["dep:log", "optional-log/log"]
Then use macros of “optional-log” crate instead of those of the “log” crate.
In this way, once the “log” feature of your crate is enabled by downstream, these macros will be expanded to the corresponding macros of the “log” crate, otherwise they do nothing.
The log_enabled! macro will always return false if the “log” feature is not enabled.