Get prune working, at least in a simple case.

[mailshears.git] / bin / mailshears

diff --git a/bin/mailshears b/bin/mailshears
index fc20dd3b4b7302ce536e90210d87cad474ad1e34..441708e674401e62dd0657ebe5e9e9184a7644d6 100755 (executable)
--- a/bin/mailshears
+++ b/bin/mailshears
@@ -13,59 +13,109 @@
 # filesystem, but not the database.
 #
 
-# We need Pathname to get the real filesystem path
-# of this script (and not, for example, the path of
-# a symlink which points to it.
-require 'pathname'
-
-# This bit of magic adds the parent directory (the
-# project root) to the list of ruby load paths.
-# Thus, our require statements will work regardless of
-# how or from where the script was run.
-executable = Pathname.new(__FILE__).realpath.to_s
-$: << File.dirname(executable) + '/../'
-
-# Load our config file.
-require 'bin/configuration'
-
-# And the necessary classes.
-require 'src/errors.rb'
-require 'src/exit_codes.rb'
-require 'src/dovecot_mailstore'
-require 'src/postfixadmin_db'
-
-dms = DovecotMailstore.new(Configuration::MAIL_ROOT)
-
-pgadb = PostfixadminDb.new(Configuration::DBHOST,
-                           Configuration::DBPORT,
-                           Configuration::DBOPTS,
-                           Configuration::DBTTY,
-                           Configuration::DBNAME,
-                           Configuration::DBUSER,
-                           Configuration::DBPASS)
-
-begin
-  # Get the list of accounts according to the filesystem.
-  fs_accts = dms.get_accounts_from_filesystem()
-rescue StandardError => e
-  puts "There was an error retrieving accounts from the filesystem: #{e.to_s}"
-  Kernel.exit(ExitCodes::FILESYSTEM_ERROR)
+# Define a usage string using the program name.
+exe = File.basename($PROGRAM_NAME)
+usage = "#{exe} [prune | rm <target> | mv <src> <dst>]"
+
+# Defaults
+mode_name = 'prune'
+mode = :prune
+
+# Now, if a mode was supplied, it should be in ARGV[0].
+if ARGV.length() > 0
+  mode_names = ['prune', 'rm', 'mv']
+  if mode_names.include?(ARGV.first().downcase()) then
+    # Peel the mode name off the head of the list.
+    mode_name = ARGV.shift()
+  end
+end
+
+if mode_name == 'rm' then
+  mode = :rm
+elsif mode_name == 'mv' then
+  mode = :mv
+end
+
+# Need this before referencing ExitCodes.
+require 'mailshears'
+
+# Since we removed both the executable name and the mode name (if it
+# existed) from ARGV, what remains should be the required
+# arguments.
+if (mode == :prune and (ARGV.length() != 0)) or
+    (mode == :rm and (ARGV.length() < 1))   or
+    (mode == :mv and (ARGV.length() != 2))   then
+  puts "ERROR: missing (or extra) command-line arguments."
+  puts "Usage: #{usage}"
+  Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
+end
+
+cfg = Configuration.new()
+
+# Load each of the plugins that we'll need.
+cfg.plugins.each do |plugin_file|
+  require "#{mode_name}/plugins/#{plugin_file}"
 end
 
-begin
-  # ...and according to the Postfixadmin database.
-  db_accts = pgadb.get_accounts_from_db()
-rescue DatabaseError => e
-  puts "There was an error connecting to the database: #{e.to_s}"
-  Kernel.exit(ExitCodes::DATABASE_ERROR)
+# And the runners.
+require "#{mode_name}/#{mode_name}_runner"
+require "#{mode_name}/#{mode_name}_dummy_runner"
+
+def make_header(plugin_name)
+  # The header that we output before the list of domains/accounts.
+  # Just the path of this script, the current time, and the plugin name.
+  exe = File.basename($PROGRAM_NAME)
+  header = "#{exe}, "
+
+  current_time = Time.now()
+  if current_time.respond_to?(:iso8601)
+    # Somehow this method is missing on some machines.
+    header += current_time.iso8601.to_s
+  else
+    # Fall back to whatever this looks like.
+    header += current_time.to_s
+  end
+
+  header += ' (Plugin: ' + plugin_name + ")\n"
+  header += '-' * header.size # Underline the header.
+
+  return header
+end
+
+
+plugin_class = nil
+runner_class = nil
+dummy_runner_class = nil
+
+if mode == :rm then
+  plugin_class = RmPlugin
+  runner_class = RmRunner
+  dummy_runner_class = RmDummyRunner
+elsif mode == :mv then
+  plugin_class = MvPlugin
+  runner_class = MvRunner
+  dummy_runner_class = MvDummyRunner
+else
+  # Safe, catch-all default
+  plugin_class = PrunePlugin
+  runner_class = PruneRunner
+  dummy_runner_class = PruneDummyRunner
 end
 
+puts make_header(plugin_class.to_s())
+
+plugin_class.includers.each do |plugin_class_includer|
+  plugin = plugin_class_includer.new()
+
+  if cfg.i_mean_business then
+    runner = runner_class.new()
+  else
+    runner = dummy_runner_class.new()
+  end
 
-# Figure out which addresses are in the filesystem, but not in the
-# database.
-difference = [fs_accts - db_accts]
+  # The splat passes the correct (we hope) number of arguments to the
+  # appropriate runner. The Rm(Dummy)Runner have splats on their
+  # *target arguments as well, to turn ARGV back into an array.
+  runner.run(plugin, *ARGV)
 
-# Don't output any unnecessary junk. Cron might mail it to someone.
-if difference.size > 0
-  puts difference
 end