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[PATCH 3/3] send-email: use the three-arg form of open in recipients_cmd

From
Junio C Hamano <gitster@pobox.com>
Date
Apr 1, 2013, 01:40 UTC
Message-ID
<1364780442-6015-3-git-send-email-gitster@pobox.com>
In-Reply-To
<1364780442-6015-1-git-send-email-gitster@pobox.com>
From: Ramkumar Ramachandra <artagnon@gmail.com>

Perlcritic does not want to see the trailing pipe in the two-args form of open(), i.e.

	open my $fh, "$cmd \Q$file\E |";

If $cmd were a single-token command name, it would make a lot more sense to use four-or-more-args form "open FILEHANDLE,MODE,CMD,ARGS" to avoid shell from expanding metacharacters in $file, but we do expect multi-word string in $to_cmd and $cc_cmd to be expanded by the shell, so we cannot rewrite it to

	open my $fh, "-|", $cmd, $file;
for extra safety.  At least, by using this in the three-arg form:
	open my $fh, "-|", "$cmd \Q$file\E";

we can silence Perlcritique, even though we do not gain much safety by doing so.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 git-send-email.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/git-send-email.perl b/git-send-email.perl
index 86dd593..fb92227 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -1438,7 +1438,7 @@ sub recipients_cmd {
 
 	my $sanitized_sender = sanitize_address($sender);
 	my @addresses = ();
-	open my $fh, "$cmd \Q$file\E |"
+	open my $fh, "-|", "$cmd \Q$file\E"
 	    or die "($prefix) Could not execute '$cmd'";
 	while (my $address = <$fh>) {
 		$address =~ s/^\s*//g;
-- 
1.8.2-441-g6e6f07b
Previous: Eric SunshineNext: Jonathan Nieder
Message 15 of 21 in “git-send-email.perl: implement suggestions made by perlcritic”
  1. git-send-email.perl: implement suggestions made by perlcriticRamkumar Ramachandra, Mar 21, 2013
  2. Junio C HamanoMar 21, 2013
  3. Ramkumar RamachandraMar 21, 2013
  4. Ramkumar RamachandraMar 27, 2013
  5. Junio C HamanoMar 27, 2013
  6. git-send-email.perl: implement suggestions made by perlcriticRamkumar Ramachandra, Mar 28, 2013
  7. Jonathan NiederMar 28, 2013
  8. Junio C HamanoMar 28, 2013
  9. Ramkumar RamachandraMar 31, 2013
  10. Junio C HamanoApr 1, 2013
  11. 1/3 send-email: use "return;" not "return undef;" on error codepathsJunio C Hamano, Apr 1, 2013
  12. 2/3 send-email: drop misleading function prototypeJunio C Hamano, Apr 1, 2013
  13. Jonathan NiederApr 1, 2013
  14. Eric SunshineApr 1, 2013
  15. 3/3 send-email: use the three-arg form of open in recipients_cmdJunio C Hamano, Apr 1, 2013
  16. Jonathan NiederApr 1, 2013
  17. Ramkumar RamachandraApr 2, 2013
  18. Eric SunshineApr 1, 2013
  19. Ramkumar RamachandraApr 2, 2013
  20. Junio C HamanoApr 2, 2013
  21. Ramkumar RamachandraApr 2, 2013

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