feat(log4r): 初始化项目并实现基础日志功能
新增了符合 log4j 风格的日志框架，支持五种日志级别（Trace、Debug、Info、Warn、Error）， 并通过宏调用方式输出日志。默认提供控制台输出 Appender 和简单布局格式。 同时添加了基本使用示例和相关依赖配置。
This commit is contained in:
kingecg
commit
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/target
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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dependencies = [
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"libc",
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]
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||||||
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name = "autocfg"
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||||||
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||||||
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||||||
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[[package]]
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||||||
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dependencies = [
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"find-msvc-tools",
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"shlex",
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]
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[[package]]
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name = "cfg-if"
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[[package]]
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||||||
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name = "chrono"
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||||||
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dependencies = [
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"iana-time-zone",
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"js-sys",
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"num-traits",
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"wasm-bindgen",
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"windows-link",
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]
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[[package]]
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name = "core-foundation-sys"
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[[package]]
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name = "find-msvc-tools"
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[[package]]
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name = "iana-time-zone"
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dependencies = [
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"android_system_properties",
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"core-foundation-sys",
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"iana-time-zone-haiku",
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"js-sys",
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"log",
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"wasm-bindgen",
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"windows-core",
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]
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[[package]]
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name = "iana-time-zone-haiku"
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dependencies = [
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"cc",
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]
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[[package]]
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name = "js-sys"
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dependencies = [
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"once_cell",
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"wasm-bindgen",
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]
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[[package]]
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name = "libc"
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[[package]]
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name = "log"
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[[package]]
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name = "log4r"
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dependencies = [
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"chrono",
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]
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[[package]]
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name = "num-traits"
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dependencies = [
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"autocfg",
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]
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[[package]]
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name = "once_cell"
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[[package]]
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "rustversion"
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version = "1.0.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "shlex"
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[[package]]
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name = "syn"
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dependencies = [
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||||||
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"proc-macro2",
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||||||
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"quote",
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||||||
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"unicode-ident",
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]
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||||||
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||||||
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[[package]]
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name = "unicode-ident"
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||||||
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||||||
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[[package]]
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name = "wasm-bindgen"
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version = "0.2.104"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c1da10c01ae9f1ae40cbfac0bac3b1e724b320abfcf52229f80b547c0d250e2d"
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||||||
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dependencies = [
|
||||||
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"cfg-if",
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||||||
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"once_cell",
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||||||
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"rustversion",
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||||||
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"wasm-bindgen-macro",
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||||||
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"wasm-bindgen-shared",
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]
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[[package]]
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name = "wasm-bindgen-backend"
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version = "0.2.104"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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||||||
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dependencies = [
|
||||||
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"bumpalo",
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||||||
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"log",
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||||||
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"proc-macro2",
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||||||
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"quote",
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||||||
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"syn",
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||||||
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"wasm-bindgen-shared",
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]
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||||||
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[[package]]
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name = "wasm-bindgen-macro"
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version = "0.2.104"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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||||||
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dependencies = [
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||||||
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"quote",
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||||||
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"wasm-bindgen-macro-support",
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]
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[[package]]
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name = "wasm-bindgen-macro-support"
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version = "0.2.104"
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||||||
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||||||
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dependencies = [
|
||||||
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"proc-macro2",
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||||||
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"quote",
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||||||
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"syn",
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"wasm-bindgen-backend",
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"wasm-bindgen-shared",
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]
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[[package]]
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name = "wasm-bindgen-shared"
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version = "0.2.104"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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dependencies = [
|
||||||
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"unicode-ident",
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||||||
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]
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||||||
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[[package]]
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name = "windows-core"
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||||||
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||||||
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||||||
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||||||
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dependencies = [
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"windows-implement",
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"windows-interface",
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"windows-link",
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"windows-result",
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"windows-strings",
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]
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[[package]]
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name = "windows-implement"
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||||||
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dependencies = [
|
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "windows-interface"
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||||||
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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||||||
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dependencies = [
|
||||||
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"proc-macro2",
|
||||||
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"quote",
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||||||
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"syn",
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||||||
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "windows-link"
|
||||||
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version = "0.2.0"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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||||||
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||||||
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[[package]]
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||||||
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name = "windows-result"
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||||||
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version = "0.4.0"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "7084dcc306f89883455a206237404d3eaf961e5bd7e0f312f7c91f57eb44167f"
|
||||||
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dependencies = [
|
||||||
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"windows-link",
|
||||||
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]
|
||||||
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|
||||||
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[[package]]
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||||||
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name = "windows-strings"
|
||||||
|
version = "0.5.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "7218c655a553b0bed4426cf54b20d7ba363ef543b52d515b3e48d7fd55318dda"
|
||||||
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dependencies = [
|
||||||
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"windows-link",
|
||||||
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]
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||||||
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@ -0,0 +1,7 @@
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||||||
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[package]
|
||||||
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name = "log4r"
|
||||||
|
version = "0.1.0"
|
||||||
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edition = "2024"
|
||||||
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|
||||||
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[dependencies]
|
||||||
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chrono = "0.4.42"
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||||||
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@ -0,0 +1,18 @@
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use log4r::{LogLevel, Logger};
|
||||||
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|
||||||
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fn main() {
|
||||||
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// Initialize the logger with Debug level
|
||||||
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Logger::init(LogLevel::Debug);
|
||||||
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|
||||||
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// Test all log levels
|
||||||
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log4r::trace!("This is a trace message - won't be printed");
|
||||||
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log4r::debug!("This is a debug message - will be printed");
|
||||||
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log4r::info!("This is an info message - will be printed");
|
||||||
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log4r::warn!("This is a warning message - will be printed");
|
||||||
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log4r::error!("This is an error message - will be printed");
|
||||||
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|
||||||
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println!("\n--- Setting log level to Trace ---");
|
||||||
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// Note: In a real implementation, we would have a way to reconfigure the logger
|
||||||
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// For now, we're just showing what trace level would look like
|
||||||
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log4r::trace!("This is a trace message - would be printed with Trace level");
|
||||||
|
}
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@ -0,0 +1,18 @@
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||||||
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use log4r::{LogLevel, Logger};
|
||||||
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|
||||||
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fn main() {
|
||||||
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// Initialize the logger with Debug level
|
||||||
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Logger::init(LogLevel::Debug);
|
||||||
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|
||||||
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// Test all log levels
|
||||||
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log4r::trace!("This is a trace message - won't be printed");
|
||||||
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log4r::debug!("This is a debug message - will be printed");
|
||||||
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log4r::info!("This is an info message - will be printed");
|
||||||
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log4r::warn!("This is a warning message - will be printed");
|
||||||
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log4r::error!("This is an error message - will be printed");
|
||||||
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|
||||||
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// Change log level to trace to see all messages
|
||||||
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println!("\nChanging log level to Trace:");
|
||||||
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Logger::init(LogLevel::Trace);
|
||||||
|
log4r::trace!("This is a trace message - now will be printed");
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,205 @@
|
||||||
|
//! # log4r - A log4j-like logging framework for Rust
|
||||||
|
//!
|
||||||
|
//! This crate provides a simple, extensible logging framework similar to log4j.
|
||||||
|
//!
|
||||||
|
//! ## Example
|
||||||
|
//!
|
||||||
|
//! ```
|
||||||
|
//! use log4r::{LogLevel, Logger};
|
||||||
|
//!
|
||||||
|
//! Logger::init(LogLevel::Debug);
|
||||||
|
//!
|
||||||
|
//! log4r::trace!("This is a trace message");
|
||||||
|
//! log4r::debug!("This is a debug message");
|
||||||
|
//! log4r::info!("This is an info message");
|
||||||
|
//! log4r::warn!("This is a warning message");
|
||||||
|
//! log4r::error!("This is an error message");
|
||||||
|
//! ```
|
||||||
|
|
||||||
|
use std::{sync::{Mutex, OnceLock}, time};
|
||||||
|
|
||||||
|
/// Log levels compatible with log4j
|
||||||
|
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
|
||||||
|
pub enum LogLevel {
|
||||||
|
/// The "trace" level.
|
||||||
|
Trace,
|
||||||
|
/// The "debug" level.
|
||||||
|
Debug,
|
||||||
|
/// The "info" level.
|
||||||
|
Info,
|
||||||
|
/// The "warn" level.
|
||||||
|
Warn,
|
||||||
|
/// The "error" level.
|
||||||
|
Error,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl LogLevel {
|
||||||
|
/// Returns the string representation of the log level
|
||||||
|
pub fn as_str(&self) -> &'static str {
|
||||||
|
match self {
|
||||||
|
LogLevel::Trace => "TRACE",
|
||||||
|
LogLevel::Debug => "DEBUG",
|
||||||
|
LogLevel::Info => "INFO",
|
||||||
|
LogLevel::Warn => "WARN",
|
||||||
|
LogLevel::Error => "ERROR",
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Log event containing all information about a log message
|
||||||
|
pub struct LogEvent<'a> {
|
||||||
|
/// The level of the log event
|
||||||
|
pub level: LogLevel,
|
||||||
|
/// The message to log
|
||||||
|
pub message: &'a str,
|
||||||
|
/// The timestamp when the event occurred
|
||||||
|
pub timestamp: std::time::SystemTime,
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Trait for formatting log events into strings
|
||||||
|
pub trait Layout: Send + Sync {
|
||||||
|
/// Format a log event into a string
|
||||||
|
fn format(&self, event: &LogEvent) -> String;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Simple layout that formats log events as "[LEVEL] message"
|
||||||
|
pub struct SimpleLayout;
|
||||||
|
|
||||||
|
impl Layout for SimpleLayout {
|
||||||
|
fn format(&self, event: &LogEvent) -> String {
|
||||||
|
format!("[{:<5}] {} {}", event.level.as_str(), get_now_str(event.timestamp), event.message)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Trait for output targets (console, file, etc.)
|
||||||
|
pub trait Appender: Send + Sync {
|
||||||
|
/// Append a log event to the output target
|
||||||
|
fn append(&self, event: &LogEvent);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Console appender that writes to stdout
|
||||||
|
pub struct ConsoleAppender {
|
||||||
|
layout: Box<dyn Layout>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ConsoleAppender {
|
||||||
|
/// Create a new console appender with a specific layout
|
||||||
|
pub fn new(layout: Box<dyn Layout>) -> Self {
|
||||||
|
Self { layout }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Appender for ConsoleAppender {
|
||||||
|
fn append(&self, event: &LogEvent) {
|
||||||
|
println!("{}", self.layout.format(event));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static LOGGER: OnceLock<Mutex<Option<Logger>>> = OnceLock::new();
|
||||||
|
|
||||||
|
/// The logger struct that holds the current log level
|
||||||
|
pub struct Logger {
|
||||||
|
level: LogLevel,
|
||||||
|
appenders: Vec<Box<dyn Appender>>,
|
||||||
|
}
|
||||||
|
fn get_now_str(sys_time: time::SystemTime) -> String {
|
||||||
|
use chrono::{Local, DateTime};
|
||||||
|
let dt = DateTime::<Local>::from(sys_time);
|
||||||
|
return dt.format("%Y-%m-%d %H:%M:%S").to_string();
|
||||||
|
}
|
||||||
|
impl Logger {
|
||||||
|
/// Initialize the logger with a specific log level
|
||||||
|
pub fn init(level: LogLevel) {
|
||||||
|
let console_appender = Box::new(ConsoleAppender::new(Box::new(SimpleLayout)));
|
||||||
|
let logger = Logger {
|
||||||
|
level,
|
||||||
|
appenders: vec![console_appender],
|
||||||
|
};
|
||||||
|
LOGGER.set(Mutex::new(Some(logger))).ok();
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Get the current logger instance
|
||||||
|
pub fn get() -> Option<std::sync::MutexGuard<'static, Option<Logger>>> {
|
||||||
|
LOGGER.get().map(|logger| logger.lock().unwrap())
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Check if a message at the specified level should be logged
|
||||||
|
fn should_log(&self, level: LogLevel) -> bool {
|
||||||
|
level >= self.level
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Log a message at the specified level
|
||||||
|
pub fn log(&self, level: LogLevel, message: &str) {
|
||||||
|
if self.should_log(level) {
|
||||||
|
let event = LogEvent {
|
||||||
|
level,
|
||||||
|
message,
|
||||||
|
timestamp: std::time::SystemTime::now(),
|
||||||
|
};
|
||||||
|
|
||||||
|
for appender in &self.appenders {
|
||||||
|
appender.append(&event);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Macro for logging trace messages
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! trace {
|
||||||
|
($($arg:tt)*) => {
|
||||||
|
if let Some(guard) = $crate::Logger::get() {
|
||||||
|
if let Some(logger) = guard.as_ref() {
|
||||||
|
logger.log($crate::LogLevel::Trace, &format!($($arg)*));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Macro for logging debug messages
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! debug {
|
||||||
|
($($arg:tt)*) => {
|
||||||
|
if let Some(guard) = $crate::Logger::get() {
|
||||||
|
if let Some(logger) = guard.as_ref() {
|
||||||
|
logger.log($crate::LogLevel::Debug, &format!($($arg)*));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Macro for logging info messages
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! info {
|
||||||
|
($($arg:tt)*) => {
|
||||||
|
if let Some(guard) = $crate::Logger::get() {
|
||||||
|
if let Some(logger) = guard.as_ref() {
|
||||||
|
logger.log($crate::LogLevel::Info, &format!($($arg)*));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Macro for logging warning messages
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! warn {
|
||||||
|
($($arg:tt)*) => {
|
||||||
|
if let Some(guard) = $crate::Logger::get() {
|
||||||
|
if let Some(logger) = guard.as_ref() {
|
||||||
|
logger.log($crate::LogLevel::Warn, &format!($($arg)*));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Macro for logging error messages
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! error {
|
||||||
|
($($arg:tt)*) => {
|
||||||
|
if let Some(guard) = $crate::Logger::get() {
|
||||||
|
if let Some(logger) = guard.as_ref() {
|
||||||
|
logger.log($crate::LogLevel::Error, &format!($($arg)*));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue