update version, add way to get timestamp from input to julid-gen, chrono now mandatory

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "julid-rs"
-version = "1.6.1803"
+version = "1.6.18033"
 authors = ["Joe Ardent <code@ardent.nebcorp.com>"]
 edition = "2021"
 keywords = ["ulid", "library", "sqlite", "extension", "julid"]
@@ -11,8 +11,7 @@ license-file = "LICENSE.md"
 repository = "https://gitlab.com/nebkor/julid"
 
 [features]
-default = ["chrono", "serde", "sqlx"] # just the regular crate
-chrono = ["dep:chrono"]
+default = ["serde", "sqlx"] # just the regular crate
 serde = ["dep:serde"]
 sqlx = ["dep:sqlx"]
 
@@ -29,9 +28,9 @@ rand = "0.8"
 
 # for the CLI
 clap = { version = "4.3", default-features = false, features = ["help", "usage", "std", "derive"] }
+chrono = { version = "0.4", default-features = false, features = ["std", "time"] }
 
 # all other deps are optional
-chrono = { version = "0.4", optional = true, default-features = false, features = ["std", "time"] }
 serde = { version = "1.0", features = ["derive"], optional = true }
 sqlx = { version = "0.7", features = ["sqlite"], default-features = false, optional = true }
 sqlite-loadable = { version = "0.0.5", optional = true }

README.md

@@ -188,9 +188,7 @@ That's about 24,000 IDs/millisecond; 24 *MILLION* per second!
 The default optional Cargo features include implementations of traits for getting Julids into and
 out of SQLite with [SQLx](https://github.com/launchbadge/sqlx), and for generally
 serializing/deserializing with [Serde](https://serde.rs/), via the `sqlx` and `serde` features,
-respectively. One final default optional feature, `chrono`, uses the Chrono crate to return the
-timestamp as a [`DateTime`](https://docs.rs/chrono/latest/chrono/struct.DateTime.html) by adding a
-`created_at(&self)` method to `Julid`.
+respectively.
 
 Something to note: don't enable the `plugin` feature in your Cargo.toml if you're using this crate
 inside your Rust application, especially if you're *also* loading it as an extension in SQLite in

VERSION

@@ -1 +1 @@
-1.61803
+1.618033

src/bin/gen.rs

@@ -2,17 +2,28 @@ use clap::Parser;
 use julid::Julid;
 
 #[derive(Debug, Parser)]
-#[command(author, version = "1.61803", about = "Generate and print Julids")]
+#[command(author, version = "1.618033", about = "Generate and print Julids")]
 struct Cli {
+    #[clap(help = "Print the timestamp of the given Julid", short, long)]
+    pub timestamp: Option<String>,
     #[clap(help = "Number of Julids to generate", default_value_t = 1)]
     pub num: usize,
 }
 
 fn main() {
     let cli = Cli::parse();
+    if let Some(ts) = cli.timestamp {
+        if let Ok(ts) = Julid::from_string(&ts) {
+            println!("{}", ts.created_at());
+        } else {
+            eprintln!("Could not parse input '{}' as a Julid", ts);
+            std::process::exit(1);
+        }
+    } else {
+        // Just print some Julids
         let num = cli.num;
-
         for _ in 0..num {
             println!("{}", Julid::new());
         }
+    }
 }

src/julid.rs

@@ -117,7 +117,6 @@ impl Julid {
         (self.0 & bitmask!(UNIQUE_BITS)) as u64
     }
 
-    #[cfg(feature = "chrono")]
     /// Returns the timestamp as a `chrono::DateTime<chrono::Utc>` (feature
     /// `chrono` (default))
     pub fn created_at(&self) -> chrono::DateTime<chrono::Utc> {