Make the geo-types conversion functionality opt-in. (#115)

.travis.yml

@@ -1,11 +1,11 @@
 language: rust
-rust:
-  - nightly
-  - beta
-  - stable
-after_success: |
-  cargo doc && \
-  echo '<meta http-equiv=refresh content=0;url=geojson/index.html>' > target/doc/index.html && \
-  sudo pip install ghp-import && \
-  ghp-import -n target/doc && \
-  git push -qf https://${TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git gh-pages
+
+cache: cargo
+
+matrix:
+  include:
+    - env: FEATURES=""
+    - env: FEATURES="--features geo-types"
+
+script:
+  - cargo build --release $FEATURES && cargo test --release $FEATURES

Cargo.toml

@@ -15,7 +15,7 @@ edition = "2018"
 [dependencies]
 serde = "~1.0"
 serde_json = "~1.0"
-geo-types = "0.4"
+geo-types = { version = "0.4", optional = true }
 num-traits = "0.2"
 
 [dev-dependencies]
@@ -24,3 +24,6 @@ criterion = "0.2"
 [[bench]]
 name = "parse"
 harness = false
+
+[package.metadata.docs.rs]
+features = [ "geo-types" ]

README.md

@@ -1,9 +1,6 @@
 geojson
 =======
 
-[![Build Status](https://travis-ci.org/georust/geojson.svg)](https://travis-ci.org/georust/geojson)
-[![geojson on Crates.io](https://meritbadge.herokuapp.com/geojson)](https://crates.io/crates/geojson)
-
 [Documentation](https://docs.rs/geojson/)
 
 Library for serializing the [GeoJSON](http://geojson.org) vector GIS file format

src/geometry.rs

@@ -24,14 +24,17 @@ use crate::{util, Bbox, Error, LineStringType, PointType, PolygonType};
 /// types:
 ///
 /// ```rust
-/// extern crate geo_types;
-/// extern crate geojson;
-///
+/// # #[cfg(feature = "geo-types")]
+/// # fn test() {
 /// let point = geo_types::Point::new(2., 9.);
 /// assert_eq!(
 ///     geojson::Value::from(&point),
 ///     geojson::Value::Point(vec![2., 9.]),
 /// );
+/// # }
+/// # #[cfg(not(feature = "geo-types"))]
+/// # fn test() {}
+/// # test()
 /// ```
 #[derive(Clone, Debug, PartialEq)]
 pub enum Value {
@@ -258,12 +261,10 @@ mod tests {
 
     use crate::json::JsonObject;
     use crate::{GeoJson, Geometry, Value};
-    use geo_types::LineString;
 
     fn encode(geometry: &Geometry) -> String {
         serde_json::to_string(&geometry).unwrap()
     }
-
     fn decode(json_string: String) -> GeoJson {
         json_string.parse().unwrap()
     }
@@ -291,8 +292,7 @@ mod tests {
 
     #[test]
     fn test_geometry_display() {
-        let route: LineString<_> = vec![(0.0, 0.1), (0.1, 0.2), (0.2, 0.3)].into();
-        let v = Value::from(&route);
+        let v = Value::LineString(vec![vec![0.0, 0.1], vec![0.1, 0.2], vec![0.2, 0.3]]);
         let geometry = Geometry::new(v);
         assert_eq!(
             "{\"coordinates\":[[0.0,0.1],[0.1,0.2],[0.2,0.3]],\"type\":\"LineString\"}",

src/lib.rs

@@ -184,7 +184,10 @@
 //!
 //! The [`geojson_example`](https://github.com/urschrei/geojson_example) and [`polylabel_cmd`](https://github.com/urschrei/polylabel_cmd/blob/master/src/main.rs) crates contain example
 //! implementations which may be useful if you wish to perform these conversions.
+//!
+//! To use the conversion functionality, ensure the `geo-types` feature is enabled.
 
+#[cfg(feature = "geo-types")]
 use geo_types;
 use serde;
 use serde_json;
@@ -216,8 +219,8 @@ pub mod feature;
 mod feature_collection;
 pub use crate::feature_collection::FeatureCollection;
 
-/// Convert Geometries into [Geo](https://docs.rs/geo) types
-pub mod conversion;
+#[cfg(feature = "geo-types")]
+mod conversion;
 
 /// Feature Objects
 ///