make chrono optional #49

.travis.yml

@@ -25,6 +25,7 @@ script:
   - cargo clean
   - cargo build
   - cargo test
+  - cargo test --features chrono
 
   # it's enough to run this once:
   - |

Cargo.toml

@@ -16,14 +16,16 @@ codecov = { repository = "sile/hls_m3u8" }
 travis-ci = { repository = "sile/hls_m3u8" }
 
 [dependencies]
-chrono = "0.4"
+chrono = { version = "0.4", optional = true }
+backtrace = { version = "0.3", features = ["std"], optional = true }
+
 derive_builder = "0.9"
-derive_more = "0.99"
 hex = "0.4"
+thiserror = "1.0"
+
+derive_more = "0.99"
 shorthand = "0.1"
 strum = { version = "0.17", features = ["derive"] }
-thiserror = "1.0"
-backtrace = { version = "0.3", features = ["std"], optional = true }
 
 [dev-dependencies]
 pretty_assertions = "0.6"

src/error.rs

@@ -59,6 +59,7 @@ enum ErrorKind {
     UnexpectedTag { tag: String },
 
     #[error("{source}")]
+    #[cfg(feature = "chrono")]
     Chrono { source: chrono::ParseError },
 
     #[error("builder error: {message}")]
@@ -169,6 +170,7 @@ impl Error {
     }
 
     // third party crates:
+    #[cfg(feature = "chrono")]
     pub(crate) fn chrono(source: chrono::format::ParseError) -> Self {
         Self::new(ErrorKind::Chrono { source })
     }

src/tags/media_segment/date_range.rs

@@ -3,6 +3,7 @@ use std::fmt;
 use std::str::FromStr;
 use std::time::Duration;
 
+#[cfg(feature = "chrono")]
 use chrono::{DateTime, FixedOffset, SecondsFormat};
 use derive_builder::Builder;
 use shorthand::ShortHand;
@@ -12,13 +13,8 @@ use crate::types::{ProtocolVersion, Value};
 use crate::utils::{quote, tag, unquote};
 use crate::{Error, RequiredVersion};
 
-/// # [4.3.2.7. EXT-X-DATERANGE]
+/// The [`ExtXDateRange`] tag associates a date range (i.e., a range of time
-///
+/// defined by a starting and ending date) with a set of attribute/value pairs.
-/// The [`ExtXDateRange`] tag associates a date range (i.e., a range of
-/// time defined by a starting and ending date) with a set of attribute/
-/// value pairs.
-///
-/// [4.3.2.7. EXT-X-DATERANGE]: https://tools.ietf.org/html/rfc8216#section-4.3.2.7
 #[derive(ShortHand, Builder, Debug, Clone, PartialEq, PartialOrd)]
 #[builder(setter(into))]
 #[shorthand(enable(must_use, into))]
@@ -43,6 +39,7 @@ pub struct ExtXDateRange {
     /// # Note
     ///
     /// This attribute is required.
+    #[cfg(feature = "chrono")]
     start_date: DateTime<FixedOffset>,
     /// The date at which the [`ExtXDateRange`] ends. It must be equal to or
     /// later than the value of the [`start-date`] attribute.
@@ -52,8 +49,12 @@ pub struct ExtXDateRange {
     /// This attribute is optional.
     ///
     /// [`start-date`]: #method.start_date
+    #[cfg(feature = "chrono")]
     #[builder(setter(strip_option), default)]
     end_date: Option<DateTime<FixedOffset>>,
+    #[cfg(not(feature = "chrono"))]
+    #[builder(setter(strip_option), default)]
+    end_date: Option<String>,
     /// The duration of the [`ExtXDateRange`]. A single instant in time (e.g.,
     /// crossing a finish line) should be represented with a duration of 0.
     ///
@@ -145,27 +146,48 @@ impl ExtXDateRange {
     /// Makes a new [`ExtXDateRange`] tag.
     ///
     /// # Example
-    ///
+    #[cfg_attr(
-    /// ```
+        feature = "chrono",
-    /// # use hls_m3u8::tags::ExtXDateRange;
+        doc = r#"
-    /// use chrono::offset::TimeZone;
+```
-    /// use chrono::{DateTime, FixedOffset};
+# use hls_m3u8::tags::ExtXDateRange;
-    ///
+use chrono::offset::TimeZone;
-    /// const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
+use chrono::{DateTime, FixedOffset};
-    ///
+
-    /// let date_range = ExtXDateRange::new(
+const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
-    ///     "id",
+
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
+let date_range = ExtXDateRange::new(
-    ///         .ymd(2010, 2, 19)
+    "id",
-    ///         .and_hms_milli(14, 54, 23, 31),
+    FixedOffset::east(8 * HOURS_IN_SECS)
-    /// );
+        .ymd(2010, 2, 19)
-    /// ```
+        .and_hms_milli(14, 54, 23, 31),
+);
+```
+"#
+    )]
+    #[cfg_attr(
+        not(feature = "chrono"),
+        doc = r#"
+```
+# use hls_m3u8::tags::ExtXDateRange;
+
+let date_range = ExtXDateRange::new("id", "2010-02-19T14:54:23.031+08:00");
+```
+    "#
+    )]
     #[must_use]
-    pub fn new<T: Into<String>>(id: T, start_date: DateTime<FixedOffset>) -> Self {
+    pub fn new<T: Into<String>, #[cfg(not(feature = "chrono"))] I: Into<String>>(
+        id: T,
+        #[cfg(feature = "chrono")] start_date: DateTime<FixedOffset>,
+        #[cfg(not(feature = "chrono"))] start_date: I,
+    ) -> Self {
         Self {
             id: id.into(),
             class: None,
+            #[cfg(feature = "chrono")]
             start_date,
+            #[cfg(not(feature = "chrono"))]
+            start_date: start_date.into(),
             end_date: None,
             duration: None,
             planned_duration: None,
@@ -210,8 +232,26 @@ impl FromStr for ExtXDateRange {
             match key {
                 "ID" => id = Some(unquote(value)),
                 "CLASS" => class = Some(unquote(value)),
-                "START-DATE" => start_date = Some(unquote(value)),
+                "START-DATE" => {
-                "END-DATE" => end_date = Some(unquote(value).parse().map_err(Error::chrono)?),
+                    #[cfg(feature = "chrono")]
+                    {
+                        start_date = Some(unquote(value).parse().map_err(Error::chrono)?)
+                    }
+                    #[cfg(not(feature = "chrono"))]
+                    {
+                        start_date = Some(unquote(value))
+                    }
+                }
+                "END-DATE" => {
+                    #[cfg(feature = "chrono")]
+                    {
+                        end_date = Some(unquote(value).parse().map_err(Error::chrono)?)
+                    }
+                    #[cfg(not(feature = "chrono"))]
+                    {
+                        end_date = Some(unquote(value))
+                    }
+                }
                 "DURATION" => {
                     duration = Some(Duration::from_secs_f64(
                         value.parse().map_err(|e| Error::parse_float(value, e))?,
@@ -244,10 +284,7 @@ impl FromStr for ExtXDateRange {
         }
 
         let id = id.ok_or_else(|| Error::missing_value("ID"))?;
-        let start_date = start_date
+        let start_date = start_date.ok_or_else(|| Error::missing_value("START-DATE"))?;
-            .ok_or_else(|| Error::missing_value("START-DATE"))?
-            .parse()
-            .map_err(Error::chrono)?;
 
         if end_on_next && class.is_none() {
             return Err(Error::invalid_input());
@@ -277,13 +314,23 @@ impl fmt::Display for ExtXDateRange {
             write!(f, ",CLASS={}", quote(value))?;
         }
 
+        #[cfg(feature = "chrono")]
+        {
             write!(
                 f,
                 ",START-DATE={}",
                 quote(&self.start_date.to_rfc3339_opts(SecondsFormat::AutoSi, true))
             )?;
+        }
+
+        #[cfg(not(feature = "chrono"))]
+        {
+            write!(f, ",START-DATE={}", quote(&self.start_date))?;
+        }
 
         if let Some(value) = &self.end_date {
+            #[cfg(feature = "chrono")]
+            {
                 write!(
                     f,
                     ",END-DATE={}",
@@ -291,6 +338,12 @@ impl fmt::Display for ExtXDateRange {
                 )?;
             }
 
+            #[cfg(not(feature = "chrono"))]
+            {
+                write!(f, ",END-DATE={}", quote(&value))?;
+            }
+        }
+
         if let Some(value) = &self.duration {
             write!(f, ",DURATION={}", value.as_secs_f64())?;
         }
@@ -327,9 +380,11 @@ impl fmt::Display for ExtXDateRange {
 mod test {
     use super::*;
     use crate::types::Float;
+    #[cfg(feature = "chrono")]
     use chrono::offset::TimeZone;
     use pretty_assertions::assert_eq;
 
+    #[cfg(feature = "chrono")]
     const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
 
     macro_rules! generate_tests {
@@ -369,7 +424,16 @@ mod test {
         {
             ExtXDateRange::builder()
                 .id("splice-6FFFFFF0")
-                .start_date(FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 15, 0))
+                .start_date({
+                    #[cfg(feature = "chrono")]
+                    {
+                        FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 15, 0)
+                    }
+                    #[cfg(not(feature = "chrono"))]
+                    {
+                        "2014-03-05T11:15:00Z"
+                    }
+                })
                 .planned_duration(Duration::from_secs_f64(59.993))
                 .scte35_out(concat!(
                     "0xFC002F0000000000FF00001",
@@ -393,8 +457,26 @@ mod test {
             ExtXDateRange::builder()
                 .id("test_id")
                 .class("test_class")
-                .start_date(FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 15, 0))
+                .start_date({
-                .end_date(FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 16, 0))
+                    #[cfg(feature = "chrono")]
+                    {
+                        FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 15, 0)
+                    }
+                    #[cfg(not(feature = "chrono"))]
+                    {
+                        "2014-03-05T11:15:00Z"
+                    }
+                })
+                .end_date({
+                    #[cfg(feature = "chrono")]
+                    {
+                        FixedOffset::east(0).ymd(2014, 3, 5).and_hms(11, 16, 0)
+                    }
+                    #[cfg(not(feature = "chrono"))]
+                    {
+                        "2014-03-05T11:16:00Z"
+                    }
+                })
                 .duration(Duration::from_secs_f64(60.1))
                 .planned_duration(Duration::from_secs_f64(59.993))
                 .insert_client_attribute("X-CUSTOM", Float::new(45.3))
@@ -424,12 +506,18 @@ mod test {
     #[test]
     fn test_required_version() {
         assert_eq!(
-            ExtXDateRange::new(
+            ExtXDateRange::new("id", {
-                "id",
+                #[cfg(feature = "chrono")]
+                {
                     FixedOffset::east(8 * HOURS_IN_SECS)
                         .ymd(2010, 2, 19)
                         .and_hms_milli(14, 54, 23, 31)
-            )
+                }
+                #[cfg(not(feature = "chrono"))]
+                {
+                    "2010-02-19T14:54:23.031+08:00"
+                }
+            })
             .required_version(),
             ProtocolVersion::V1
         );

src/tags/media_segment/program_date_time.rs

@@ -1,7 +1,9 @@
 use std::fmt;
 use std::str::FromStr;
 
+#[cfg(feature = "chrono")]
 use chrono::{DateTime, FixedOffset, SecondsFormat};
+#[cfg(feature = "chrono")]
 use derive_more::{Deref, DerefMut};
 
 use crate::types::ProtocolVersion;
@@ -16,8 +18,18 @@ use crate::{Error, RequiredVersion};
 /// [`MediaSegment`]: crate::MediaSegment
 /// [4.3.2.6. EXT-X-PROGRAM-DATE-TIME]:
 /// https://tools.ietf.org/html/rfc8216#section-4.3.2.6
-#[derive(Deref, DerefMut, Debug, Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
+#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub struct ExtXProgramDateTime(DateTime<FixedOffset>);
+#[cfg_attr(feature = "chrono", derive(Deref, DerefMut, Copy))]
+pub struct ExtXProgramDateTime {
+    /// The date-time of the first sample of the associated media segment.
+    #[cfg(feature = "chrono")]
+    #[cfg_attr(feature = "chrono", deref_mut, deref)]
+    pub date_time: DateTime<FixedOffset>,
+    /// The date-time of the first sample of the associated media segment.
+    #[cfg(not(feature = "chrono"))]
+    pub date_time: String,
+    __non_exhaustive: (),
+}
 
 impl ExtXProgramDateTime {
     pub(crate) const PREFIX: &'static str = "#EXT-X-PROGRAM-DATE-TIME:";
@@ -39,67 +51,28 @@ impl ExtXProgramDateTime {
     /// );
     /// ```
     #[must_use]
-    pub const fn new(date_time: DateTime<FixedOffset>) -> Self { Self(date_time) }
+    #[cfg(feature = "chrono")]
+    pub const fn new(date_time: DateTime<FixedOffset>) -> Self {
+        Self {
+            date_time,
+            __non_exhaustive: (),
+        }
+    }
 
-    /// Returns the date-time of the first sample of the associated media
+    /// Makes a new [`ExtXProgramDateTime`] tag.
-    /// segment.
     ///
     /// # Example
     ///
     /// ```
     /// # use hls_m3u8::tags::ExtXProgramDateTime;
-    /// use chrono::{FixedOffset, TimeZone};
+    /// let program_date_time = ExtXProgramDateTime::new("2010-02-19T14:54:23.031+08:00");
-    ///
-    /// const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
-    ///
-    /// let program_date_time = ExtXProgramDateTime::new(
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
-    ///         .ymd(2010, 2, 19)
-    ///         .and_hms_milli(14, 54, 23, 31),
-    /// );
-    ///
-    /// assert_eq!(
-    ///     program_date_time.date_time(),
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
-    ///         .ymd(2010, 2, 19)
-    ///         .and_hms_milli(14, 54, 23, 31)
-    /// );
     /// ```
-    #[must_use]
+    #[cfg(not(feature = "chrono"))]
-    pub const fn date_time(&self) -> DateTime<FixedOffset> { self.0 }
+    pub fn new<T: Into<String>>(date_time: T) -> Self {
-
+        Self {
-    /// Sets the date-time of the first sample of the associated media segment.
+            date_time: date_time.into(),
-    ///
+            __non_exhaustive: (),
-    /// # Example
+        }
-    ///
-    /// ```
-    /// # use hls_m3u8::tags::ExtXProgramDateTime;
-    /// use chrono::{FixedOffset, TimeZone};
-    ///
-    /// const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
-    ///
-    /// let mut program_date_time = ExtXProgramDateTime::new(
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
-    ///         .ymd(2010, 2, 19)
-    ///         .and_hms_milli(14, 54, 23, 31),
-    /// );
-    ///
-    /// program_date_time.set_date_time(
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
-    ///         .ymd(2010, 10, 10)
-    ///         .and_hms_milli(10, 10, 10, 10),
-    /// );
-    ///
-    /// assert_eq!(
-    ///     program_date_time.date_time(),
-    ///     FixedOffset::east(8 * HOURS_IN_SECS)
-    ///         .ymd(2010, 10, 10)
-    ///         .and_hms_milli(10, 10, 10, 10)
-    /// );
-    /// ```
-    pub fn set_date_time(&mut self, value: DateTime<FixedOffset>) -> &mut Self {
-        self.0 = value;
-        self
     }
 }
 
@@ -110,7 +83,16 @@ impl RequiredVersion for ExtXProgramDateTime {
 
 impl fmt::Display for ExtXProgramDateTime {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        let date_time = self.0.to_rfc3339_opts(SecondsFormat::Millis, true);
+        let date_time = {
+            #[cfg(feature = "chrono")]
+            {
+                self.date_time.to_rfc3339_opts(SecondsFormat::Millis, true)
+            }
+            #[cfg(not(feature = "chrono"))]
+            {
+                &self.date_time
+            }
+        };
         write!(f, "{}{}", Self::PREFIX, date_time)
     }
 }
@@ -121,7 +103,17 @@ impl FromStr for ExtXProgramDateTime {
     fn from_str(input: &str) -> Result<Self, Self::Err> {
         let input = tag(input, Self::PREFIX)?;
 
-        let date_time = DateTime::parse_from_rfc3339(input).map_err(Error::chrono)?;
+        let date_time = {
+            #[cfg(feature = "chrono")]
+            {
+                DateTime::parse_from_rfc3339(input).map_err(Error::chrono)?
+            }
+            #[cfg(not(feature = "chrono"))]
+            {
+                input
+            }
+        };
+
         Ok(Self::new(date_time))
     }
 }
@@ -129,20 +121,30 @@ impl FromStr for ExtXProgramDateTime {
 #[cfg(test)]
 mod test {
     use super::*;
+    #[cfg(feature = "chrono")]
     use chrono::{Datelike, TimeZone};
+    #[cfg(feature = "chrono")]
     use core::ops::DerefMut;
     use pretty_assertions::assert_eq;
 
+    #[cfg(feature = "chrono")]
     const HOURS_IN_SECS: i32 = 3600; // 1 hour = 3600 seconds
 
     #[test]
     fn test_display() {
         assert_eq!(
-            ExtXProgramDateTime::new(
+            ExtXProgramDateTime::new({
+                #[cfg(feature = "chrono")]
+                {
                     FixedOffset::east(8 * HOURS_IN_SECS)
                         .ymd(2010, 2, 19)
                         .and_hms_milli(14, 54, 23, 31)
-            )
+                }
+                #[cfg(not(feature = "chrono"))]
+                {
+                    "2010-02-19T14:54:23.031+08:00"
+                }
+            })
             .to_string(),
             "#EXT-X-PROGRAM-DATE-TIME:2010-02-19T14:54:23.031+08:00".to_string()
         );
@@ -151,11 +153,18 @@ mod test {
     #[test]
     fn test_parser() {
         assert_eq!(
-            ExtXProgramDateTime::new(
+            ExtXProgramDateTime::new({
+                #[cfg(feature = "chrono")]
+                {
                     FixedOffset::east(8 * HOURS_IN_SECS)
                         .ymd(2010, 2, 19)
                         .and_hms_milli(14, 54, 23, 31)
-            ),
+                }
+                #[cfg(not(feature = "chrono"))]
+                {
+                    "2010-02-19T14:54:23.031+08:00"
+                }
+            }),
             "#EXT-X-PROGRAM-DATE-TIME:2010-02-19T14:54:23.031+08:00"
                 .parse::<ExtXProgramDateTime>()
                 .unwrap()
@@ -165,17 +174,25 @@ mod test {
     #[test]
     fn test_required_version() {
         assert_eq!(
-            ExtXProgramDateTime::new(
+            ExtXProgramDateTime::new({
+                #[cfg(feature = "chrono")]
+                {
                     FixedOffset::east(8 * HOURS_IN_SECS)
                         .ymd(2010, 2, 19)
-                    .and_hms_milli(14, 54, 23, 31),
+                        .and_hms_milli(14, 54, 23, 31)
-            )
+                }
+                #[cfg(not(feature = "chrono"))]
+                {
+                    "2010-02-19T14:54:23.031+08:00"
+                }
+            })
             .required_version(),
             ProtocolVersion::V1
         );
     }
 
     #[test]
+    #[cfg(feature = "chrono")]
     fn test_deref() {
         assert_eq!(
             ExtXProgramDateTime::new(
@@ -189,6 +206,7 @@ mod test {
     }
 
     #[test]
+    #[cfg(feature = "chrono")]
     fn test_deref_mut() {
         assert_eq!(
             ExtXProgramDateTime::new(