(#1853) Pacman package provider

Adds support for use Archlinux's pacman package manager in Puppet.

Originally written by Miah Johnson, with bug fixes from Thomas Hatch and
myself.

1 files changed, 94 insertions, 0 deletions

diff --git a/lib/puppet/provider/package/pacman.rb b/lib/puppet/provider/package/pacman.rb
new file mode 100644
index 000000000..6eb7dbe3d
--- /dev/null
+++ b/lib/puppet/provider/package/pacman.rb
@@ -0,0 +1,94 @@
+require 'puppet/provider/package'
+
+Puppet::Type.type(:package).provide :pacman, :parent => Puppet::Provider::Package do
+  desc "Support for the Package Manager Utility (pacman) used in Archlinux."
+
+  commands :pacman => "/usr/bin/pacman"
+  defaultfor :operatingsystem => :archlinux
+  confine    :operatingsystem => :archlinux
+  has_feature :upgradeable
+
+  # Install a package using 'pacman'.
+  # Installs quietly, without confirmation or progressbar, updates package
+  # list from servers defined in pacman.conf.
+  def install
+    pacman "--noconfirm", "--noprogressbar", "-Sy", @resource[:name]
+
+    unless self.query
+      raise Puppet::ExecutionFailure.new("Could not find package %s" % self.name)
+    end
+  end
+
+  def self.listcmd
+    [command(:pacman), " -Q"]
+  end
+
+  # Fetch the list of packages currently installed on the system.
+  def self.instances
+    packages = []
+    begin
+      execpipe(listcmd()) do |process|
+        # pacman -Q output is 'packagename version-rel'
+        regex = %r{^(\S+)\s(\S+)}
+        fields = [:name, :ensure]
+        hash = {}
+
+        process.each { |line|
+          if match = regex.match(line)
+            fields.zip(match.captures) { |field,value|
+              hash[field] = value
+            }
+
+            name = hash[:name]
+            hash[:provider] = self.name
+
+            packages << new(hash)
+            hash = {}
+          else
+            warning("Failed to match line %s" % line)
+          end
+        }
+      end
+    rescue Puppet::ExecutionFailure
+      return nil
+    end
+    packages
+  end
+
+  # Because Archlinux is a rolling release based distro, installing a package
+  # should always result in the newest release.
+  def update
+    # Install in pacman can be used for update, too
+    self.install
+  end
+
+  def latest
+    pacman "-Sy"
+    output = pacman "-Sp", "--print-format", "%v", @resource[:name]
+    output.chomp
+  end
+
+  # Querys the pacman master list for information about the package.
+  def query
+    begin
+      output = pacman("-Qi", @resource[:name])
+
+      if output =~ /Version.*:\s(.+)/
+        return { :ensure => $1 }
+      end
+    rescue Puppet::ExecutionFailure
+      return {
+        :ensure => :purged,
+        :status => 'missing',
+        :name => @resource[:name],
+        :error => 'ok',
+      }
+    end
+    nil
+  end
+
+  # Removes a package from the system.
+  def uninstall
+    pacman "--noconfirm", "--noprogressbar", "-R", @resource[:name]
+  end
+end