Add GHA CI

Author: eldruin

.github/workflows/build.yml

@@ -0,0 +1,94 @@
+on:
+  push:
+    branches: [ staging, trying, master ]
+  pull_request:
+
+name: Build
+
+env:
+  RUSTFLAGS: '--deny warnings'
+
+jobs:
+  build-std:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust: [stable]
+        FEATURES: ['', 'from_str', 'no_std']
+
+        include:
+          # Test nightly but don't fail
+          - rust: nightly
+            experimental: true
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.TARGET }}
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --target=x86_64-unknown-linux-gnu --features=${{ matrix.FEATURES }}
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --target=x86_64-unknown-linux-gnu --features=${{ matrix.FEATURES }}
+
+  build-no-std:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust: [stable]
+        TARGET: [thumbv6m-none-eabi, thumbv7m-none-eabi]
+
+        include:
+          # Test nightly but don't fail
+          - rust: nightly
+            experimental: true
+            TARGET: x86_64-unknown-linux-gnu
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.TARGET }}
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --target=${{ matrix.TARGET }} --features no_std
+
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: 1.52.1 # clippy is too much of a moving target at the moment
+          override: true
+          components: clippy
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}

.travis.yml

@@ -1,8 +1,11 @@
 //! Types and constants for handling humidity.
 
 use super::measurement::*;
+#[cfg(not(feature = "no_std"))]
 use density::Density;
+#[cfg(not(feature = "no_std"))]
 use pressure::Pressure;
+#[cfg(not(feature = "no_std"))]
 use temperature::Temperature;
 
 /// The `Humidity` struct can be used to deal with relative humidity
@@ -32,7 +35,9 @@ use temperature::Temperature;
 ///
 ///     let humidity = Humidity::from_percent(85.0);
 ///     let temp = Temperature::from_celsius(18.0);
+///     #[cfg(not(feature="no_std"))]
 ///     let dewpoint = humidity.as_dewpoint(temp);
+///     #[cfg(not(feature="no_std"))]
 ///     println!("At {} humidity, air at {} has a dewpoint of {}", humidity, temp, dewpoint);
 ///
 /// ```
@@ -162,41 +167,47 @@ mod test {
         assert_almost_eq(o, 0.1);
     }
     // Dewpoint calculation
+    #[cfg(not(feature = "no_std"))]
     #[test]
     fn to_dewpoint1() {
         let humidity = Humidity::from_percent(85.0);
         let temp = Temperature::from_celsius(18.0);
         let dewpoint = humidity.as_dewpoint(temp);
         assert_almost_eq(dewpoint.as_celsius(), 15.44);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     fn to_dewpoint2() {
         let humidity = Humidity::from_percent(40.0);
         let temp = Temperature::from_celsius(5.0);
         let dewpoint = humidity.as_dewpoint(temp);
         assert_almost_eq(dewpoint.as_celsius(), -7.5);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     fn to_dewpoint3() {
         let humidity = Humidity::from_percent(95.0);
         let temp = Temperature::from_celsius(30.0);
         let dewpoint = humidity.as_dewpoint(temp);
         assert_almost_eq(dewpoint.as_celsius(), 29.11);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     fn from_dewpoint1() {
         let temp = Temperature::from_celsius(18.0);
         let dewpoint = Temperature::from_celsius(15.44);
         let rh = Humidity::from_dewpoint(dewpoint, temp);
         assert_almost_eq(rh.as_percent(), 85.0);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     fn vapour_pressure() {
         let humidity = Humidity::from_percent(60.0);
         let temp = Temperature::from_celsius(25.0);
         let vp = humidity.as_vapor_pressure(temp);
         assert_almost_eq(vp.as_hectopascals(), 19.011);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     // also tests as_vapor_pressure() on the fly
     fn absolute_humidity() {
@@ -205,6 +216,7 @@ mod test {
         let density = humidity.as_absolute_humidity(temp);
         assert_almost_eq(density.as_kilograms_per_cubic_meter(), 0.0138166);
     }
+    #[cfg(not(feature = "no_std"))]
     #[test]
     // round-trip test
     fn from_dewpoint2() {