.travis.yml

language: rust
matrix:
  include:
    - rust: stable
      env: BUILD=1 TEST=1 CLIPPY=1 RUSTFMT=1
    - rust: beta
      env: BUILD=1 TEST=1 CLIPPY=0 RUSTFMT=0
    - rust: beta
      env: BUILD=0 TEST=0 CLIPPY=1 RUSTFMT=1
    - rust: nightly
      env: BUILD=1 TEST=1 CLIPPY=0 RUSTFMT=0
    - rust: nightly
      env: BUILD=0 TEST=0 CLIPPY=1 RUSTFMT=1
  allow_failures:
    - rust: beta
      env: BUILD=0 TEST=0 CLIPPY=1 RUSTFMT=1
    - rust: nightly
before_script:
  - "if [ $CLIPPY -eq 1 ]; then rustup component add clippy; fi"
  - "if [ $RUSTFMT -eq 1 ]; then rustup component add rustfmt; fi"
script:
  - "if [ $BUILD -eq 1 ]; then cargo build --verbose --all; fi"
  - "if [ $TEST -eq 1 ]; then cargo test --verbose --all; fi"
  - "if [ $CLIPPY -eq 1 ]; then cargo clippy --all-targets --all-features -- -D warnings; fi"
  - "if [ $RUSTFMT -eq 1 ]; then cargo fmt --all -- --check; fi"