opcode-kit/install.sh at main · srmdn/opcode-kit · GitHub

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#!/usr/bin/env bash
#
# opcode-kit installer
#
# Builds the opcode-kit Go binary from source and installs it (plus
# optional legacy wrappers) into $PREFIX/bin (default: ~/.local/bin).
#
# Usage:
#   ./install.sh                 # build + install opcode-kit + both wrappers
#   ./install.sh all             # same as above
#   ./install.sh opcode-kit      # build + install opcode-kit only
#   ./install.sh opcode-switch   # build + install opcode-kit + opcode-switch wrapper
#   ./install.sh opcode-last     # build + install opcode-kit + opcode-last wrapper
#   ./install.sh --help          # show usage
#
# Environment:
#   PREFIX    install prefix (default: $HOME/.local)
#   GOPROXY   passed through to go build

set -euo pipefail

PREFIX="${PREFIX:-$HOME/.local}"
BIN_DIR="$PREFIX/bin"
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

usage() {
  cat <<'EOF'
Usage:
  ./install.sh
  ./install.sh all
  ./install.sh opcode-kit
  ./install.sh opcode-switch
  ./install.sh opcode-last
  PREFIX=/custom/prefix ./install.sh

Notes:
  - Default installs the opcode-kit binary and both wrappers.
  - The binary is built from source, so `go` must be installed.
  - Wrappers (opcode-switch, opcode-last) exec `opcode-kit switch|last`.
EOF
}

command -v go >/dev/null 2>&1 || {
  printf 'install.sh: `go` not found on PATH (required to build opcode-kit)\n' >&2
  exit 1
}

need_binary=0
need_switch_wrapper=0
need_last_wrapper=0

if [ "$#" -eq 0 ] || [ "$1" = "all" ]; then
  need_binary=1
  need_switch_wrapper=1
  need_last_wrapper=1
else
  for tool in "$@"; do
    case "$tool" in
      --help|-h)
        usage
        exit 0
        ;;
      opcode-kit)
        need_binary=1
        ;;
      opcode-switch)
        need_binary=1
        need_switch_wrapper=1
        ;;
      opcode-last)
        need_binary=1
        need_last_wrapper=1
        ;;
      *)
        printf 'install.sh: unknown tool: %s\n' "$tool" >&2
        usage >&2
        exit 1
        ;;
    esac
  done
fi

mkdir -p "$BIN_DIR"

if [ "$need_binary" -eq 1 ]; then
  tmp="$(mktemp -d)"
  trap 'rm -rf "$tmp"' EXIT

  printf 'Building opcode-kit from source...\n'
  (cd "$ROOT" && go build -trimpath -o "$tmp/opcode-kit" ./cmd/opcode-kit)

  install -m 0755 "$tmp/opcode-kit" "$BIN_DIR/opcode-kit"
  printf 'Installed %s\n' "$BIN_DIR/opcode-kit"
fi

if [ "$need_switch_wrapper" -eq 1 ]; then
  cat > "$BIN_DIR/opcode-switch" <<'EOF'
#!/usr/bin/env bash
exec opcode-kit switch "$@"
EOF
  chmod +x "$BIN_DIR/opcode-switch"
  printf 'Installed wrapper %s\n' "$BIN_DIR/opcode-switch"
fi

if [ "$need_last_wrapper" -eq 1 ]; then
  cat > "$BIN_DIR/opcode-last" <<'EOF'
#!/usr/bin/env bash
exec opcode-kit last "$@"
EOF
  chmod +x "$BIN_DIR/opcode-last"
  printf 'Installed wrapper %s\n' "$BIN_DIR/opcode-last"
fi

printf 'Done. Run `opcode-kit help` for usage.\n'