1 files changed, 113 insertions, 0 deletions
diff --git a/vendor/iana-time-zone/src/lib.rs b/vendor/iana-time-zone/src/lib.rs
new file mode 100644
index 000000000..fe4e3fb84
--- /dev/null
+++ b/vendor/iana-time-zone/src/lib.rs
@@ -0,0 +1,113 @@
+#![warn(clippy::all)]
+#![warn(clippy::cargo)]
+#![warn(clippy::undocumented_unsafe_blocks)]
+#![allow(unknown_lints)]
+#![warn(missing_copy_implementations)]
+#![warn(missing_debug_implementations)]
+#![warn(missing_docs)]
+#![warn(rust_2018_idioms)]
+#![warn(trivial_casts, trivial_numeric_casts)]
+#![warn(unused_qualifications)]
+#![warn(variant_size_differences)]
+
+//! get the IANA time zone for the current system
+//!
+//! This small utility crate provides the
+//! [`get_timezone()`](fn.get_timezone.html) function.
+//!
+//! ```rust
+//! // Get the current time zone as a string.
+//! let tz_str = iana_time_zone::get_timezone()?;
+//! println!("The current time zone is: {}", tz_str);
+//! # Ok::<(), iana_time_zone::GetTimezoneError>(())
+//! ```
+//!
+//! The resulting string can be parsed to a
+//! [`chrono-tz::Tz`](https://docs.rs/chrono-tz/latest/chrono_tz/enum.Tz.html)
+//! variant like this:
+//! ```ignore
+//! let tz_str = iana_time_zone::get_timezone()?;
+//! let tz: chrono_tz::Tz = tz_str.parse()?;
+//! ```
+
+#[allow(dead_code)]
+mod ffi_utils;
+
+#[cfg_attr(target_os = "linux", path = "tz_linux.rs")]
+#[cfg_attr(target_os = "windows", path = "tz_windows.rs")]
+#[cfg_attr(any(target_os = "macos", target_os = "ios"), path = "tz_macos.rs")]
+#[cfg_attr(
+    all(target_arch = "wasm32", not(target_os = "wasi")),
+    path = "tz_wasm32.rs"
+)]
+#[cfg_attr(
+    any(target_os = "freebsd", target_os = "dragonfly"),
+    path = "tz_freebsd.rs"
+)]
+#[cfg_attr(
+    any(target_os = "netbsd", target_os = "openbsd"),
+    path = "tz_netbsd.rs"
+)]
+#[cfg_attr(
+    any(target_os = "illumos", target_os = "solaris"),
+    path = "tz_illumos.rs"
+)]
+#[cfg_attr(target_os = "android", path = "tz_android.rs")]
+#[cfg_attr(target_os = "haiku", path = "tz_haiku.rs")]
+mod platform;
+
+/// Error types
+#[derive(Debug)]
+pub enum GetTimezoneError {
+    /// Failed to parse
+    FailedParsingString,
+    /// Wrapped IO error
+    IoError(std::io::Error),
+    /// Platform-specific error from the operating system
+    OsError,
+}
+
+impl std::error::Error for GetTimezoneError {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            GetTimezoneError::FailedParsingString => None,
+            GetTimezoneError::IoError(err) => Some(err),
+            GetTimezoneError::OsError => None,
+        }
+    }
+}
+
+impl std::fmt::Display for GetTimezoneError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        f.write_str(match self {
+            GetTimezoneError::FailedParsingString => "GetTimezoneError::FailedParsingString",
+            GetTimezoneError::IoError(err) => return err.fmt(f),
+            GetTimezoneError::OsError => "OsError",
+        })
+    }
+}
+
+impl From<std::io::Error> for GetTimezoneError {
+    fn from(orig: std::io::Error) -> Self {
+        GetTimezoneError::IoError(orig)
+    }
+}
+
+/// Get the current IANA time zone as a string.
+///
+/// See the module-level documentation for a usage example and more details
+/// about this function.
+#[inline]
+pub fn get_timezone() -> Result<String, GetTimezoneError> {
+    platform::get_timezone_inner()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn get_current() {
+        println!("current: {}", get_timezone().unwrap());
+    }
+}