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Installation of NPM Packages
============================

These states manage the installed packages for node.js using the Node Package
Manager (npm). Note that npm must be installed for these states to be
available, so npm states should include a requisite to a pkg.installed state
for the package which provides npm (simply ``npm`` in most cases). Example:

.. code-block:: yaml

    npm:
      pkg.installed

    yaml:
      npm.installed:
        - require:
          - pkg: npm
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    Verify that the given package is installed and is at the correct version
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        coffee-script:
          npm.installed:
            - user: someuser

        coffee-script@1.0.1:
          npm.installed: []

    name
        The package to install

        .. versionchanged:: 2014.7.2
            This parameter is no longer lowercased by salt so that
            case-sensitive NPM package names will work.

    pkgs
        A list of packages to install with a single npm invocation; specifying
        this argument will ignore the ``name`` argument

        .. versionadded:: 2014.7.0

    dir
        The target directory in which to install the package, or None for
        global installation

    user
        The user to run NPM with

        .. versionadded:: 0.17.0

    registry
        The NPM registry from which to install the package

        .. versionadded:: 2014.7.0

    env
        A list of environment variables to be set prior to execution. The
        format is the same as the :py:func:`cmd.run <salt.states.cmd.run>`.
        state function.

        .. versionadded:: 2014.7.0

    force_reinstall
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        Helper function to determine if a package is installed

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    Verify that the given package is not installed.

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    Bootstraps a node.js application.

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    Ensure that the given package is not cached.

    If no package is specified, this ensures the entire cache is cleared.

    name
        The name of the package to remove from the cache, or None for all packages

    user
        The user to run NPM with

    force
        Force cleaning of cache.  Required for npm@5 and greater

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