Merge pull request #135 from sidprak/add-quiet-option

Add --quiet option to silence output on stdout

s3cmd

@@ -1827,6 +1827,7 @@ def main():
     optparser.add_option(      "--version", dest="show_version", action="store_true", help="Show s3cmd version (%s) and exit." % (PkgInfo.version))
     optparser.add_option("-F", "--follow-symlinks", dest="follow_symlinks", action="store_true", default=False, help="Follow symbolic links as if they are regular files")
     optparser.add_option(      "--cache-file", dest="cache_file", action="store", default="",  metavar="FILE", help="Cache FILE containing local source MD5 values")
+    optparser.add_option("-q", "--quiet", dest="quiet", action="store_true", default=False, help="Silence output on stdout")
 
     optparser.set_usage(optparser.usage + " COMMAND [parameters]")
     optparser.set_description('S3cmd is a tool for managing objects in '+
@@ -1849,6 +1850,14 @@ def main():
         output(u"s3cmd version %s" % PkgInfo.version)
         sys.exit(0)
 
+    if options.quiet:
+        try:
+            f = open("/dev/null", "w")
+            sys.stdout.close()
+            sys.stdout = f
+        except IOError:
+            warning(u"--quiet disabled.")
+
     ## Now finally parse the config file
     if not options.config:
         error(u"Can't find a config file. Please use --config option.")