.travis.yml

# Environment variables
env:
  global:
    - CFLAGS=-Werror

cache:
  pip: true
  directories:
    - $HOME/.cache/apt

# CI Jobs
jobs:
  include:
    # Test stage
    - stage: test
      env:
        - STAGE=test
      install:
        - sudo apt-get install python3 python3-pip
        - sudo pip3 install toml
        - sudo apt-get install libfuse-dev
        - fusermount -V
        - gcc --version
      before_script:
        - mkdir mount
        - sudo chmod a+rw /dev/loop0
        - dd if=/dev/zero bs=512 count=128K of=disk
        - losetup /dev/loop0 disk
      script:
        # Build
        - make
        # Format and mount
        - ./lfs --format /dev/loop0
        - ./lfs /dev/loop0 mount
        # Some simple operations than self hosting test
        - ls mount
        - cp -r littlefs mount/littlefs
        - cd mount/littlefs
        - stat .
        - ls -flh
        - make -B test

    # Deploy stage for updating versions and tags
    - stage: deploy
      env:
        - STAGE=deploy
      script:
        - |
          bash << 'SCRIPT'
          set -ev
          # Find version defined in lfs.h
          LFS_VERSION=$(grep -ox '#define LFS_VERSION .*' littlefs/lfs.h | cut -d ' ' -f3)
          LFS_VERSION_MAJOR=$((0xffff & ($LFS_VERSION >> 16)))
          LFS_VERSION_MINOR=$((0xffff & ($LFS_VERSION >>  0)))
          # Grab latest patch from repo tags, default to 0, needs finagling
          # to get past GitHub's pagination API
          PREV_URL=https://api.github.com/repos/$TRAVIS_REPO_SLUG/git/refs/tags/v$LFS_VERSION_MAJOR.$LFS_VERSION_MINOR.
          PREV_URL=$(curl -u "$GEKY_BOT_RELEASES" "$PREV_URL" -I \
              | sed -n '/^Link/{s/.*<\(.*\)>; rel="last"/\1/;p;q0};$q1' \
              || echo $PREV_URL)
          LFS_VERSION_PATCH=$(curl -u "$GEKY_BOT_RELEASES" "$PREV_URL" \
              | jq 'map(.ref | match("\\bv.*\\..*\\.(.*)$";"g")
                  .captures[].string | tonumber) | max + 1' \
              || echo 0)
          # We have our new version
          LFS_VERSION="v$LFS_VERSION_MAJOR.$LFS_VERSION_MINOR.$LFS_VERSION_PATCH"
          echo "VERSION $LFS_VERSION"
          # Check that we're the most recent commit
          CURRENT_COMMIT=$(curl -f -u "$GEKY_BOT_RELEASES" \
              https://api.github.com/repos/$TRAVIS_REPO_SLUG/commits/master \
              | jq -re '.sha')
          [ "$TRAVIS_COMMIT" == "$CURRENT_COMMIT" ] || exit 0
          # Create major branch (vN)
          git branch v$LFS_VERSION_MAJOR HEAD
          git push https://$GEKY_BOT_RELEASES@github.com/$TRAVIS_REPO_SLUG.git \
              v$LFS_VERSION_MAJOR
          # Create patch version tag (vN.N.N)
          curl -f -u "$GEKY_BOT_RELEASES" -X POST \
              https://api.github.com/repos/$TRAVIS_REPO_SLUG/git/refs \
              -d "{
                  \"ref\": \"refs/tags/$LFS_VERSION\",
                  \"sha\": \"$TRAVIS_COMMIT\"
              }"
          SCRIPT

# Job control
stages:
  - name: test
  - name: deploy
    if: branch = master AND type = push