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[PATCH 14/18] Don't use quotes for empty strings

From
Célestin Matte <celestin.matte@ensimag.fr>
Date
Jun 6, 2013, 19:34 UTC
Message-ID
<1370547263-13558-15-git-send-email-celestin.matte@ensimag.fr>
In-Reply-To
<1370547263-13558-1-git-send-email-celestin.matte@ensimag.fr>
Empty strings are replaced by an $EMPTY constant.
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr>
Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
---
 contrib/mw-to-git/git-remote-mediawiki.perl |   18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index b7a7012..059bd1a 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -41,6 +41,8 @@ Readonly my $NULL_SHA1 => '0000000000000000000000000000000000000000';
 # Used on Git's side to reflect empty edit messages on the wiki
 Readonly my $EMPTY_MESSAGE => '*Empty MediaWiki Message*';
 
+Readonly my $EMPTY => q{};
+
 if (@ARGV != 2) {
 	exit_error_usage();
 }
@@ -161,11 +163,11 @@ sub parse_commands {
 		mw_list($cmd[1]);
 	} elsif ($cmd[0] eq 'import') {
 		die("Invalid arguments for import\n")
-		    if ($cmd[1] eq "" || defined($cmd[2]));
+		    if ($cmd[1] eq $EMPTY || defined($cmd[2]));
 		mw_import($cmd[1]);
 	} elsif ($cmd[0] eq 'option') {
 		die("Too many arguments for option\n")
-		    if ($cmd[1] eq "" || $cmd[2] eq "" || defined($cmd[3]));
+		    if ($cmd[1] eq $EMPTY || $cmd[2] eq $EMPTY || defined($cmd[3]));
 		mw_option($cmd[1],$cmd[2]);
 	} elsif ($cmd[0] eq 'push') {
 		mw_push($cmd[1]);
@@ -556,7 +558,7 @@ sub mediawiki_clean {
 	# Mediawiki does not allow blank space at the end of a page and ends with a single \n.
 	# This function right trims a string and adds a \n at the end to follow this rule
 	$string =~ s/\s+$//;
-	if ($string eq "" && $page_created) {
+	if ($string eq $EMPTY && $page_created) {
 		# Creating empty pages is forbidden.
 		$string = $EMPTY_CONTENT;
 	}
@@ -567,7 +569,7 @@ sub mediawiki_clean {
 sub mediawiki_smudge {
 	my $string = shift;
 	if ($string eq $EMPTY_CONTENT) {
-		$string = "";
+		$string = $EMPTY;
 	}
 	# This \n is important. This is due to mediawiki's way to handle end of files.
 	return "${string}\n";
@@ -993,7 +995,7 @@ sub mw_upload_file {
 	} else {
 		# Don't let perl try to interpret file content as UTF-8 => use "raw"
 		my $content = run_git("cat-file blob ${new_sha1}", 'raw');
-		if ($content ne "") {
+		if ($content ne $EMPTY) {
 			mw_connect_maybe();
 			$mediawiki->{config}->{upload_url} =
 				"${url}/index.php/Special:Upload";
@@ -1035,7 +1037,7 @@ sub mw_push_file {
 	my $newrevid;
 
 	if ($summary eq $EMPTY_MESSAGE) {
-		$summary = '';
+		$summary = $EMPTY;
 	}
 
 	my $new_sha1 = $diff_info_split[3];
@@ -1046,7 +1048,7 @@ sub mw_push_file {
 
 	my ($title, $extension) = $complete_file_name =~ /^(.*)\.([^\.]*)$/;
 	if (!defined($extension)) {
-		$extension = "";
+		$extension = $EMPTY;
 	}
 	if ($extension eq 'mw') {
 		my $ns = get_mw_namespace_id_for_page($complete_file_name);
@@ -1114,7 +1116,7 @@ sub mw_push {
 		if ($force) {
 			print {*STDERR} "Warning: forced push not allowed on a MediaWiki.\n";
 		}
-		if ($local eq "") {
+		if ($local eq $EMPTY) {
 			print {*STDERR} "Cannot delete remote branch on a MediaWiki\n";
 			print {*STDOUT} "error ${remote} cannot delete\n";
 			next;
-- 
1.7.9.5
Previous: Eric SunshineNext: Célestin Matte
Message 35 of 44 in “git-remote-mediawiki: Follow perlcritic's recommandations”
  1. 00/18 git-remote-mediawiki: Follow perlcritic's recommandationsCélestin Matte, Jun 6, 2013
  2. 01/18 Follow perlcritic's recommendations - level 5 and 4Célestin Matte, Jun 6, 2013
  3. Eric SunshineJun 7, 2013
  4. Matthieu MoyJun 7, 2013
  5. Célestin MatteJun 7, 2013
  6. Matthieu MoyJun 7, 2013
  7. 02/18 Change style of some regular expressions to make them clearerCélestin Matte, Jun 6, 2013
  8. Eric SunshineJun 7, 2013
  9. Junio C HamanoJun 7, 2013
  10. Eric SunshineJun 7, 2013
  11. Junio C HamanoJun 7, 2013
  12. Peter KreftingJun 7, 2013
  13. 03/18 Add newline in the end of die() error messagesCélestin Matte, Jun 6, 2013
  14. 04/18 Prevent local variable $url to have the same name as a global variableCélestin Matte, Jun 6, 2013
  15. 05/18 Turn double-negated expressions into simple expressionsCélestin Matte, Jun 6, 2013
  16. Eric SunshineJun 7, 2013
  17. Célestin MatteJun 7, 2013
  18. Eric SunshineJun 7, 2013
  19. Célestin MatteJun 7, 2013
  20. 06/18 Remove unused variableCélestin Matte, Jun 6, 2013
  21. 07/18 Rename a variable ($last) so that it does not have the name of a keywordCélestin Matte, Jun 6, 2013
  22. 08/18 Explicitely assign local variable as undef and make a proper one-instruction-by- line indentationCélestin Matte, Jun 6, 2013
  23. Eric SunshineJun 7, 2013
  24. Matthieu MoyJun 7, 2013
  25. 09/18 Check return value of open and remove import of unused open2Célestin Matte, Jun 6, 2013
  26. Matthieu MoyJun 7, 2013
  27. 10/18 Put long code into a submoduleCélestin Matte, Jun 6, 2013
  28. Eric SunshineJun 7, 2013
  29. Junio C HamanoJun 7, 2013
  30. 11/18 Modify strings for a better coding-styleCélestin Matte, Jun 6, 2013
  31. Eric SunshineJun 7, 2013
  32. 12/18 Brace file handles for print for more clarityCélestin Matte, Jun 6, 2013
  33. 13/18 Remove "unless" statements and replace them by negated "if" statementsCélestin Matte, Jun 6, 2013
  34. Eric SunshineJun 7, 2013
  35. 14/18 Don't use quotes for empty stringsCélestin Matte, Jun 6, 2013
  36. 15/18 Put non-trivial numeric values (e.g., different from 0, 1 and 2) in constants.Célestin Matte, Jun 6, 2013
  37. 16/18 Fix a typo ("mediwiki" instead of "mediawiki")Célestin Matte, Jun 6, 2013
  38. 17/18 Place the open() call inside the do{} struct and prevent failing closeCélestin Matte, Jun 6, 2013
  39. Junio C HamanoJun 6, 2013
  40. Célestin MatteJun 6, 2013
  41. Junio C HamanoJun 6, 2013
  42. Célestin MatteJun 6, 2013
  43. 18/18 Clearly rewrite double dereferenceCélestin Matte, Jun 6, 2013
  44. Eric SunshineJun 7, 2013

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