#!/usr/bin/env bash
# Puts a released version's Homebrew formula in the tap on Upstream
# (git.coline.app/coline/homebrew-tap), so `brew install coline/tap/onset`
# installs it. The release workflow publishes the formula next to the
# downloads; this copies it into the tap with your git credentials for
# git.coline.app (upstream auth setup-git).
# Usage: install/tap.sh <version>
set -euo pipefail
VERSION=$1
BASE=${ONSET_DOWNLOADS:-https://downloads.coline.dev/onset}
TAP=${ONSET_TAP:-https://git.coline.app/coline/homebrew-tap.git}
DIR=$(mktemp -d)
trap 'rm -rf "$DIR"' EXIT
curl -fsSL "$BASE/$VERSION/onset.rb" -o "$DIR/onset.rb"
grep -q "version \"$VERSION\"" "$DIR/onset.rb"
git clone -q "$TAP" "$DIR/tap"
mkdir -p "$DIR/tap/Formula"
cp "$DIR/onset.rb" "$DIR/tap/Formula/onset.rb"
cat >"$DIR/tap/README.md" <<'EOF'
# Coline's Homebrew tap

```sh
brew tap coline/tap https://git.coline.app/coline/homebrew-tap.git
brew install coline/tap/onset
```

`brew upgrade onset` picks up new releases.
EOF
cd "$DIR/tap"
git add Formula/onset.rb README.md
if git diff --cached --quiet; then
  echo "the tap already has onset $VERSION"
  exit 0
fi
git -c user.name=Coline -c user.email=bot@coline.app commit -q -m "onset $VERSION"
git push -q origin HEAD:main
echo "the tap has onset $VERSION"