Class: MiqRpmPackages::Sqlite

Inherits:
MiqRpmPackages show all
Defined in:
lib/metadata/linux/MiqRpmPackages/Sqlite.rb

Instance Method Summary collapse

Methods inherited from MiqRpmPackages

new

Constructor Details

#initialize(fs, dbFile) ⇒ Sqlite

Returns a new instance of Sqlite.



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# File 'lib/metadata/linux/MiqRpmPackages/Sqlite.rb', line 5

def initialize(fs, dbFile)
  require "rpm"

  @fs           = fs
  @db_file_path = dbFile

  @rpmdb_tempdir = nil
  @rpmdb_path    = nil

  if fs.nil?
    @rpmdb_path = @db_file_path
  else
    @rpmdb_tempdir = Dir.mktmpdir("rpmdb-")
    rpmdb_dir = File.join(@rpmdb_tempdir, RPM['_dbpath'])
    FileUtils.mkdir_p(rpmdb_dir)

    rpmdb_tempfile = File.open(File.join(rpmdb_dir, "rpmdb.sqlite"), "wb")
    rpmdb_file     = fs.fileOpen(@db_file_path, "r")

    loop do
      chunk = rpmdb_file.read(4_096)
      break if chunk.nil?

      rpmdb_tempfile.write(chunk)
    end

    rpmdb_tempfile.close
    rpmdb_file.close

    @rpmdb_path = rpmdb_tempfile.path
  end
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/metadata/linux/MiqRpmPackages/Sqlite.rb', line 54

def close
  FileUtils.rm_rf(@rpmdb_tempdir) if @rpmdb_tempdir
end

#each ⇒ Object 



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# File 'lib/metadata/linux/MiqRpmPackages/Sqlite.rb', line 38

def each
  RPM.transaction(@rpmdb_tempdir) do |ts|
    ts.each do |pkg|
      tagids = %w[name version release summary description buildtime vendor arch installtime]

      result = tagids.each_with_object({}) { |tag, obj| obj[tag] = pkg[tag.to_sym] }
      # These have different tag names for the tagid
      result["category"]  = pkg[:group]
      result["depends"]   = pkg[:requirename]&.join("\n")
      result["installed"] = true unless result.empty?

      yield MiqHashStruct.new(result)
    end
  end
end