Timezone as feature

.github/workflows/cargo-build.yml

@@ -18,3 +18,12 @@ jobs:
     - uses: actions/checkout@v3
     - name: Build
       run: cargo build --verbose
+
+  cargo-build-with-features:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Build
+      run: cargo build --verbose --features timezone

Cargo.toml

@@ -10,7 +10,11 @@ keywords = ["log", "logging", "filelog"]
 [dependencies]
 log = { version = "0.4", features = ["std"] }
 chrono = "0.4"
-chrono-tz = "0.10"
+chrono-tz = { version = "0.10", optional = true }
+
+[features]
+default = []
+timezone = ["chrono-tz"]
 
 [workspace]
 members = [

README.md

@@ -24,7 +24,6 @@ use ftail::Ftail;
 use log::LevelFilter;
 
 Ftail::new()
-    .timezone(chrono_tz::Europe::Amsterdam) // optional (default is UTC)
     .console(LevelFilter::Debug)
     .daily_file("logs", LevelFilter::Error)
     .init()?;
@@ -37,6 +36,11 @@ log::warn!("This is a warning message");
 log::error!("This is an error message");
 ```
 
+You can set the following configuration options:
+
+- `.datetime_format("%Y-%m-%d %H:%M:%S.3f")` to set the datetime format
+- `.timezone(ftail::Tz::UTC)` to set the timezone [requires feature `timezone`]
+
 ## Drivers
 
 ### Console

examples/console/Cargo.toml

@@ -6,5 +6,4 @@ publish = false
 
 [dependencies]
 log = "0.4"
-ftail = { path = "../../../ftail" }
-chrono-tz = "0.10"
+ftail = { path = "../../../ftail", features = ["timezone"] }

examples/console/src/main.rs

@@ -5,8 +5,8 @@ use log::LevelFilter;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     Ftail::new()
-        .timezone(chrono_tz::UTC)
-        // .timezone(chrono_tz::Europe::Amsterdam)
+        // .timezone(ftail::Tz::UTC)
+        .timezone(ftail::Tz::Europe__Amsterdam)
         .datetime_format("%d-%m-%Y %H:%M:%S")
         .console(LevelFilter::Off)
         .init()?;

src/formatters/mod.rs

@@ -11,6 +11,7 @@ impl Config {
     pub fn new() -> Config {
         Config {
             datetime_format: "%Y-%m-%d %H:%M:%S".to_string(),
+            #[cfg(feature = "timezone")]
             timezone: chrono_tz::Tz::UTC,
         }
     }

src/lib.rs

@@ -24,7 +24,6 @@
 //! use log::LevelFilter;
 //!
 //! Ftail::new()
-//!     .timezone(chrono_tz::Europe::Amsterdam) // optional (default is UTC)
 //!     .console(LevelFilter::Debug)
 //!     .daily_file("logs", LevelFilter::Error)
 //!     .init()?;
@@ -37,6 +36,11 @@
 //! log::error!("This is an error message");
 //! ```
 //!
+//! You can set the following configuration options:
+//!
+//! - `.datetime_format("%Y-%m-%d %H:%M:%S.3f")` to set the datetime format
+//! - `.timezone(ftail::Tz::UTC)` to set the timezone [requires feature `timezone`]
+//!
 //! ## Drivers
 //!
 //! ### Console
@@ -177,6 +181,9 @@ use drivers::{
 use error::FtailError;
 use log::Log;
 
+#[cfg(feature = "timezone")]
+pub use chrono_tz::Tz;
+
 /// Module containing the ANSI escape codes.
 pub mod ansi_escape;
 /// Module containing the drivers.
@@ -210,6 +217,7 @@ pub(crate) struct InitializedLogDriver {
 #[derive(Clone)]
 pub struct Config {
     pub datetime_format: String,
+    #[cfg(feature = "timezone")]
     pub timezone: chrono_tz::Tz,
 }
 
@@ -223,6 +231,7 @@ impl Ftail {
         }
     }
 
+    #[cfg(feature = "timezone")]
     /// Set the timezone for the logger.
     pub fn timezone(mut self, timezone: chrono_tz::Tz) -> Self {
         self.config.timezone = timezone;

src/writer.rs

@@ -13,10 +13,16 @@ impl<'a> LogWriter<'a> {
     }
 
     pub fn get_datetime(&self) -> String {
-        chrono::Local::now()
+        #[cfg(not(feature = "timezone"))]
+        return chrono::Local::now()
+            .format(&self.config.datetime_format)
+            .to_string();
+
+        #[cfg(feature = "timezone")]
+        return chrono::Local::now()
             .with_timezone(&self.config.timezone)
             .format(&self.config.datetime_format)
-            .to_string()
+            .to_string();
     }
 
     pub fn get_level(&self) -> String {