#!/usr/bin/env bash
set -eux

travis_terminate() {
    set +e
    pkill -9 -P $$ &> /dev/null || true
    exit $1
}

rustup component add rustfmt
cargo readme > /dev/null || cargo install cargo-readme  # skip if already available

## Auto commit & push by CI
(
    cd `mktemp -d`
    git clone https://${GITHUB_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git
    cd trie-rs
    git checkout ${TRAVIS_PULL_REQUEST_BRANCH}

    committed=0

    ### README.md from src/lib.rs
    cargo readme > README.md
    git add README.md
    git commit -m 'cargo readme > README.md' && committed=1

    ### cargo fmt
    cargo fmt --all
    git add -A
    git commit -m 'cargo fmt --all' && committed=1

    ### git push
    git push origin ${TRAVIS_PULL_REQUEST_BRANCH}

    ### Stop build if anything updated in remote
    [ $committed -eq 1 ] && travis_terminate 1 || :
)