From: Ira W. Snyder <devel@irasnyder.com>
Date: Wed, 27 Dec 2006 03:49:49 +0000 (-0800)
Subject: [RARSLAVE] Add porcelain
X-Git-Tag: v2.0.0~43
X-Git-Url: https://www.irasnyder.com/gitweb/?a=commitdiff_plain;h=cd3114227a2228eefc270ae7020a3abc99e6c9b4;p=rarslave2.git

[RARSLAVE] Add porcelain

Add all of the user-level polish, such as the option parser, and all
related functions which are needed to implement its actions.

Signed-off-by: Ira W. Snyder <devel@irasnyder.com>
---

diff --git a/rarslave.py b/rarslave.py
index 285974d..1315f85 100644
--- a/rarslave.py
+++ b/rarslave.py
@@ -1,7 +1,10 @@
 #!/usr/bin/env python
 # vim: set ts=4 sts=4 sw=4 textwidth=112 :
 
-import re, os, sys
+VERSION="2.0.0"
+PROGRAM="rarslave2"
+
+import re, os, sys, optparse
 import par2parser
 import RarslaveConfig
 import RarslaveLogger
@@ -12,6 +15,9 @@ import RarslaveLogger
 config = RarslaveConfig.RarslaveConfig()
 logger = RarslaveLogger.RarslaveLogger ()
 
+# Global options to be set / used later.
+options = None
+
 class RarslaveExtractor (object):
 
 	def __init__ (self, type):
@@ -390,7 +396,7 @@ class PAR2Set (object):
 			return -ECHECK
 
 		# Extraction Stage
-		EXTRACT_DIR = config.get_value ('directories', 'extract_directory')
+		EXTRACT_DIR = options.extract_dir
 		extractor = find_extraction_heads (self.dir, self.likely_files)
 		ret = extractor.extract (EXTRACT_DIR)
 
@@ -399,7 +405,7 @@ class PAR2Set (object):
 			return -EEXTRACT
 
 		# Deletion Stage
-		DELETE_INTERACTIVE = config.get_value ('options', 'interactive')
+		DELETE_INTERACTIVE = options.interactive
 		deleteable_files = find_deleteable_files (self.likely_files)
 		ret = delete_list (deleteable_files, DELETE_INTERACTIVE)
 
@@ -451,38 +457,168 @@ def generate_all_parsets (dir):
 
 	return parsets
 
-def main ():
-	TOPDIR = os.path.abspath ('test_material')
+def check_required_progs():
+	"""Check if the required programs are installed"""
 
-	for (dir, subdirs, files) in os.walk (TOPDIR):
-		parsets = generate_all_parsets (dir)
-		for p in parsets:
-			p.run_all ()
+	shell_not_found = 32512
+	needed = []
+
+	if run_command ('par2repair --help > /dev/null 2>&1') == shell_not_found:
+		needed.append ('par2repair')
+
+	if run_command ('unrar --help > /dev/null 2>&1') == shell_not_found:
+		needed.append ('unrar')
+
+	if run_command ('unzip --help > /dev/null 2>&1') == shell_not_found:
+		needed.append ('unzip')
+
+	if needed:
+		for n in needed:
+			print 'Needed program "%s" not found in $PATH' % (n, )
+
+		sys.exit(1)
+
+def run_options (options):
+	options.work_dir = full_abspath (options.work_dir)
+
+	if options.extract_dir != None:
+		options.extract_dir = full_abspath (options.extract_dir)
 
-	print '\nRARSLAVE STATUS\n'
+	if options.version:
+		print PROGRAM + ' - ' + VERSION
+		print
+		print 'Copyright (c) 2005,2006 Ira W. Snyder (devel@irasnyder.com)'
+		print
+		print 'This program comes with ABSOLUTELY NO WARRANTY.'
+		print 'This is free software, and you are welcome to redistribute it'
+		print 'under certain conditions. See the file COPYING for details.'
+		sys.exit (0)
+
+	if options.check_progs:
+		check_required_progs ()
+
+	if options.write_def_config:
+		config.write_config (default=True)
+
+	if options.write_config:
+		config.write_config ()
+
+def find_loglevel (options):
+
+	loglevel = options.verbose - options.quiet
+
+	if loglevel < RarslaveLogger.MessageType.Fatal:
+		loglevel = RarslaveLogger.MessageType.Fatal
+
+	if loglevel > RarslaveLogger.MessageType.Debug:
+		loglevel = RarslaveLogger.MessageType.Debug
+
+	return loglevel
+
+def printMessageTable (loglevel):
 
-	# Used in '--quiet' mode
 	if logger.hasFatalMessages ():
 		print '\nFatal Messages\n' + '=' * 80
 		logger.printLoglevel (RarslaveLogger.MessageType.Fatal)
 
-	# Used in no options mode
+	if loglevel == RarslaveLogger.MessageType.Fatal:
+		return
+
 	if logger.hasNormalMessages ():
 		print '\nNormal Messages\n' + '=' * 80
 		logger.printLoglevel (RarslaveLogger.MessageType.Normal)
 
-	# Used in --verbose mode
+	if loglevel == RarslaveLogger.MessageType.Normal:
+		return
+
 	if logger.hasVerboseMessages ():
 		print '\nVerbose Messages\n' + '=' * 80
 		logger.printLoglevel (RarslaveLogger.MessageType.Verbose)
 
-	# Used in --debug mode
+	if loglevel == RarslaveLogger.MessageType.Verbose:
+		return
+
 	if logger.hasDebugMessages ():
 		print '\nDebug Messages\n' + '=' * 80
 		logger.printLoglevel (RarslaveLogger.MessageType.Debug)
 
-	print '\n\nALL MESSAGES:'
-	logger.printAllMessages ()
+	return
+
+def main ():
+
+	# Build the OptionParser
+	parser = optparse.OptionParser()
+	parser.add_option('-n', '--not-recursive',
+						action='store_false', dest='recursive',
+						default=config.get_value('options', 'recursive'),
+						help="Don't run recursively")
+
+	parser.add_option('-d', '--work-dir',
+						dest='work_dir', type='string',
+						default=config.get_value('directories', 'working_directory'),
+						help="Start running at DIR", metavar='DIR')
+
+	parser.add_option('-e', '--extract-dir',
+						dest='extract_dir', type='string',
+						default=config.get_value('directories', 'extract_directory'),
+						help="Extract to DIR", metavar='DIR')
+
+	parser.add_option('-p', '--check-required-programs',
+						action='store_true', dest='check_progs',
+						default=False,
+						help="Check for required programs")
+
+	parser.add_option('-f', '--write-default-config',
+						action='store_true', dest='write_def_config',
+						default=False, help="Write out a new default config")
+
+	parser.add_option('-c', '--write-new-config',
+						action='store_true', dest='write_config',
+						default=False, help="Write out the current config")
+
+	parser.add_option('-i', '--interactive', dest='interactive', action='store_true',
+						default=config.get_value('options', 'interactive'),
+						help="Confirm before removing files")
+
+	parser.add_option('-q', '--quiet', dest='quiet', action='count',
+						default=0, help="Output fatal messages only")
+
+	parser.add_option('-v', '--verbose', dest='verbose', action='count',
+						default=0, help="Output extra information")
+
+	parser.add_option('-V', '--version', dest='version', action='store_true',
+						default=False, help="Output version information")
+
+	parser.version = VERSION
+
+	# Parse the given options
+	global options
+	(options, args) = parser.parse_args()
+
+	# Run any special actions that are needed on these options
+	run_options (options)
+
+	# Find the loglevel using the options given 
+	loglevel = find_loglevel (options)
+
+	# Run recursively
+	if options.recursive:
+		for (dir, subdirs, files) in os.walk (options.work_dir):
+			parsets = generate_all_parsets (dir)
+			for p in parsets:
+				p.run_all ()
+
+	# Non-recursive
+	else:
+		parsets = generate_all_parsets (options.work_dir)
+		for p in parsets:
+			p.run_all ()
+
+	# Print the results
+	printMessageTable (loglevel)
+
+	# Done!
+	return 0
 
 if __name__ == '__main__':
 	main ()