node/main.dang at main · dagger/node · GitHub

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type Node {
  """
  The source directory for the project.
  """
  pub source: Directory! @defaultPath(path: "/") @ignorePatterns(patterns: ["**/node_modules", "/dist", "/build"])

  """
  The base image to use.
  """
  pub baseImageAddress: String! = "node:25-alpine"

  """
  The package manager to use.
  """
  pub packageManager: String! = "npm"

  """
  Install all required packages
  """
  pub withInstallAll(ctr: Container!): Container! {
    ctr.withExec([packageManager, "install"])
  }

  """
  Install a specific package
  """
  pub withInstallPackage(ctr: Container!, package: String!): Container! {
    let installPackage = [packageManager, "install", package]
    # yarn uses add instead of install
    if (packageManager == "yarn") {
      installPackage = [packageManager, "add", package]
    }

    ctr.withExec(installPackage)
  }

  """
  Install a local package from a Directory
  """
  pub withInstallLocalPackage(ctr: Container!, package: Directory!): Container! {
    let name = "/" + package.digest
    # install the local package
    let installPackage = [packageManager, "install", "-D", name]
    # yarn uses add instead of install
    if (packageManager == "yarn") {
      installPackage = [packageManager, "add", "--dev", name]
    }

    # pnpm needs -w
    if (packageManager == "pnpm") {
      installPackage = [packageManager, "install", "-w", "-D", name]
    }

    ctr.withMountedDirectory(name, package).withExec(installPackage)
  }

  """
  Runtime container for node
  """
  pub base: Container! {
    # set cache variables for all supported package managers
    let base = container.from(baseImageAddress).
      withMountedCache("/root/.packages", cacheVolume("node-toolchain-packages")).
      withEnvVariable("npm_config_cache", "/root/.packages").
      withEnvVariable("YARN_CACHE_FOLDER", "/root/.packages").
      withEnvVariable("PNPM_HOME", "/root/.packages").
      withEnvVariable("BUN_INSTALL_CACHE_DIR", "/root/.packages")

    if (packageManager == "pnpm" and baseImageAddress.contains("node:")) {
      base = base.withExec(["corepack", "enable"])
    }

    base.
      withDirectory("/src", source).
      withWorkdir("/src").
      withEnvVariable("CI", "true").
      withExec([packageManager, "install"])
  }
}