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send-email: validate patches before sending anything

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We try to catch errors early so that we don't end up sending
half of a broken patch series. Right now the only validation
is checking that line-lengths are under the SMTP-mandated
limit of 998.

The validation parsing is very crude (it just checks each
line length without understanding the mailbox format) but
should work fine for this simple check.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2008-01-18 09:19:48 -05:00
committed by Junio C Hamano
parent aa54892f5a
commit 747bbff9b9
2 changed files with 37 additions and 0 deletions
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17
git-send-email.perl
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@ -332,6 +332,11 @@ for my $f (@ARGV) {
}
}
foreach my $f (@files) {
my $error = validate_patch($f);
$error and die "fatal: $f: $error\nwarning: no patches were sent\n";
}
if (@files) {
unless ($quiet) {
print $_,"\n" for (@files);
@ -837,3 +842,15 @@ sub unique_email_list(@) {
}
return @emails;
}
sub validate_patch {
my $fn = shift;
open(my $fh, '<', $fn)
or die "unable to open $fn: $!\n";
while (my $line = <$fh>) {
if (length($line) > 998) {
return "$.: patch contains a line longer than 998 characters";
}
}
return undef;
}