#
# Go (golang) environment setup.
#

# ==============================================================================
# global golang packages
# ==============================================================================

list_go_global_packages() {
  local bindir="${GOBIN:-$(go env GOBIN)}"
  if [ -z "$bindir" ]; then
    echo "GOBIN is not set"
    return 1
  fi

  for cmd in $(ls -1 "${GOBIN}"); do
    go version -m "${GOBIN}/${cmd}" | grep '^[[:space:]]path' | awk '{ print $2 }'
  done
}

install_go_global_packages() {
  local packages=(
    github.com/fatih/gomodifytags@latest
    github.com/go-delve/delve/cmd/dlv@latest
    github.com/josharian/impl@latest
    github.com/rakyll/hey@latest
    github.com/rogpeppe/godef@latest
    go.uber.org/mock/mockgen@latest
    golang.org/x/tools/cmd/godoc@latest
    golang.org/x/tools/cmd/goimports@latest
    golang.org/x/tools/gopls@latest
    golang.org/x/vuln/cmd/govulncheck@latest
    google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
    google.golang.org/protobuf/cmd/protoc-gen-go@latest
    mvdan.cc/gofumpt@latest
  )

  for package in "${packages[@]}"; do
    echo "installing/updating \"$package\""
    if [[ "$package" == *"@"* ]]; then
      GO111MODULE=on go install "$package"
    else
      GO111MODULE=on go get -u "$package"
    fi
  done

  if command-exists goenv && [ "$(goenv version-name)" != "system" ]; then
    echo "running: goenv rehash..."
    goenv rehash
  fi
}