Class: PostgresSession

Inherits:
Object
  • Object
show all
Defined in:
lib/resources/postgres_session.rb

Instance Method Summary collapse

Constructor Details

#initialize(user, pass) ⇒ PostgresSession

Returns a new instance of PostgresSession.



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# File 'lib/resources/postgres_session.rb', line 37

def initialize(user, pass)
  @user = user || 'postgres'
  @pass = pass
end

Instance Method Details

#query(query, db = [], &block) ⇒ Object 



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# File 'lib/resources/postgres_session.rb', line 42

def query(query, db = [], &block)
  dbs = db.map { |x| "-d #{x}" }.join(' ')
  # TODO: simple escape, must be handled by a library
  # that does this securely
  escaped_query = query.gsub(/\\/, '\\\\').gsub(/"/, '\\"').gsub(/\$/, '\\$')
  # run the query
  cmd = inspec.command("PGPASSWORD='#{@pass}' psql -U #{@user} #{dbs} -c \"#{escaped_query}\"")
  out = cmd.stdout + "\n" + cmd.stderr
  if out =~ /could not connect to .*/ or
     out.downcase =~ /^error/
    # skip this test if the server can't run the query
    RSpec.describe(cmd) do
      it 'is skipped', skip: out do
      end
    end
  else
    # remove the whole header (i.e. up to the first ^-----+------+------$)
    # remove the tail
    lines = cmd.stdout
               .sub(/(.*\n)+([-]+[+])*[-]+\n/, '')
               .sub(/\n[^\n]*\n\n$/, '')
    l = Lines.new(lines.strip, "PostgreSQL query: #{query}")
    RSpec.__send__('describe', l, &block)
  end
end