pre-push

#!/bin/bash -e

# Run Detekt on pre-push on changed files

cd Android

while read -r local_ref local_sha remote_ref remote_sha; do
  if [[ "$local_sha" =~ ^0+$ ]]; then
    # Handle delete
    :
  else
    if [[ "$remote_sha" =~ ^0+$ ]]; then
      # New branch: find first parent that exists on remote to compute diff
      remote_sha=$(
        git rev-list "$local_sha" | while read -r ref; do
          remote_branches=$( git branch -r --contains "$ref" )
          if [ -n "$remote_branches" ]; then
            printf "%s" "$ref"
            break
          fi
        done
      )
    fi
    range="$remote_sha..$local_sha"

    # List Added (A), Copied (C), Modified (M), Renamed (R), have their type changed (T) files
    IFS= read -rd '' changed_files < <( git diff --name-only --relative --diff-filter=ACMRT "$range" "**/src/main/**/*.kt" ) || true
    echo "Commit range: $range; number of changed kt files: $( printf "%s" "$changed_files" | wc -l | xargs )"
    if [ -n "$changed_files" ]
    then
      # `paste -sd "," -` replaces newlines with commas
      ./detekt -i "$( printf "%s" "$changed_files" | paste -sd "," - )"
    fi
  fi
done
exit 0