Added inital github action support

Author: rakshith-ravi

.github/workflows/build.yml

@@ -0,0 +1,78 @@
+on:
+  push:
+   branches:
+     - master
+     - staging
+     - develop
+
+name: Continuous integration
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust:
+          - stable
+          - beta
+          - nightly
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+          components: rustfmt, clippy
+
+      - name: Cargo build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all
+              
+  release-master: # Publish release on push to master
+    if: github.ref == 'refs/heads/master'
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v2
+      - run: git fetch --all --tags
+
+      - name: Check Release Version
+        uses: thebongy/version-check@v1
+        with:
+          file: Cargo.toml
+          tagFormat: v${version}
+        id: version_check
+
+      - name: Publish Release
+        uses: actions-rs/cargo@v1
+        with:
+          command: cargo publish --token ${{ secrets.CRATES_IO_TOKEN }}
+
+  release-staging:
+    if: github.ref == 'refs/heads/staging'
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v2
+      - run: git fetch --all --tags
+
+      - name: Check Release Version
+        uses: thebongy/version-check@v1
+        with:
+          file: Cargo.toml
+          tagFormat: v${version}
+        id: version_check
+
+      - name: Publish Release
+        uses: actions-rs/cargo@v1
+        with:
+          command: cargo publish --token ${{ secrets.CRATES_IO_TOKEN }}
+    

.github/workflows/pr.yml

@@ -0,0 +1,74 @@
+on:
+  pull_request:
+    branches:
+      - master
+      - staging
+      - develop
+name: Continuous integration (PR)
+jobs:
+  version-check:
+    if: github.base_ref == 'staging' || github.base_ref == 'master'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - run: git fetch --all --tags
+
+      - name: Check Release Version (staging)
+        if: github.base_ref == 'staging'
+        uses: thebongy/version-check@v1
+        with:
+          file: Cargo.toml
+          tagFormat: v${version}
+        id: version_check_staging
+      
+      - name: Check Release Version (master)
+        if: github.base_ref == 'master'
+        uses: thebongy/version-check@v1
+        with:
+          file: Cargo.toml
+          tagFormat: v${version}
+        id: version_check_master
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust:
+          - stable
+          - beta
+          - nightly
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+          components: rustfmt, clippy
+
+      - name: Cargo build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all
+
+      - name: Cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+
+      - name: Cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - name: Cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings