#2007 - Introduce nodejs module

modules/nodejs/manifests/init.pp

+# == Class: nodejs
+#
+# Install nodejs package from source
+#
+# == Parameters:
+#
+# [*package*]
+#   Overwrite the default package options, to fine-tune the target version (i.e.
+#   ensure => 'latest') or remove nodejs (ensure => 'absent' or 'purged')
+#
+# [*key*]
+#   Overwrite the default apt::key used (given Class['apt'] is defined).
+#
+# [*source*]
+#   Overwrite the default apt::source used (given Class['apt'] is defined).
+#
+# [*packages*]
+#   Adds adittional packages with npm.
+#
+# === Examples:
+#
+#   class {'nodejs':
+#     package => {
+#       ensure => 'latest',
+#     },
+#   }
+#
+#
+class nodejs (
+  $key = {
+    key => '68576280',
+    key_content => template("nodejs/nodesource.gpg.key.erb"),
+  },
+  $package = {},
+  $source = {
+    location => 'https://deb.nodesource.com/node_4.x',
+    release => downcase($lsbdistcodename),
+    repos => 'main',
+  },
+  $packages = {},
+) {
+
+  include stdlib
+
+  ensure_resource('package', $title, merge({
+    name => $title,
+    require => Apt::Source[$title],

[mathias, 2017/07/09 07:26:50]

Use arrow-notation to establish relationships, especially when using this merge
magic. Otherwise the configuration could overwrite your definitions by accident.

(BTW, this very relationship is already configured properly below.)

+    ensure => $ensure,
+  }, $package))
+
+  # Used as default $ensure parameter for most resources below
+  $ensure = getparam(Package[$title], 'ensure') ? {
+    /^(absent|purged)$/ => 'absent',
+    default => 'present',
+  }
+
+  if ensure_state($ensure) {
+
+    # The only package provider recognized implicitly
+    ensure_resource('apt::key', $title, merge({

[mathias, 2017/07/09 07:26:50]

How is the user supposed to remove this one if the package is ensured to be
'absent'?

+      ensure => $ensure,
+      name => 'nodesource',
+    }, $key))
+
+    ensure_resource('apt::source', $title, merge({

[mathias, 2017/07/09 07:26:50]

How is the user supposed to remove this one if the package is ensured to be
'absent'?

+      ensure => $ensure,
+      include_src => false,
+      name => 'nodesource',
+    }, $source))
+
+    Apt::Source[$title] <- Apt::Key[$title]
+    Apt::Source[$title] -> Package[$title]
+
+    create_resources('nodejs::package', $packages)
+
+  }
+
+}