send-email: extract execute_cmd from recipients_cmd
This refactor is to pave the way for the addition of the new
'--header-cmd' option to the send-email command.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/git-send-email.perl b/git-send-email.perl
index 66c9171..04503e3 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -2021,15 +2021,29 @@
}
}
+# Execute a command and return its output lines as an array.
+sub execute_cmd {
+ my ($prefix, $cmd, $file) = @_;
+ my @lines = ();
+ open my $fh, "-|", "$cmd \Q$file\E"
+ or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
+ while (my $line = <$fh>) {
+ last if $line =~ /^$/;
+ push @lines, $line;
+ }
+ close $fh
+ or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
+ return @lines;
+}
+
# Execute a command (e.g. $to_cmd) to get a list of email addresses
# and return a results array
sub recipients_cmd {
my ($prefix, $what, $cmd, $file) = @_;
-
+ my @lines = ();
my @addresses = ();
- open my $fh, "-|", "$cmd \Q$file\E"
- or die sprintf(__("(%s) Could not execute '%s'"), $prefix, $cmd);
- while (my $address = <$fh>) {
+ @lines = execute_cmd($prefix, $cmd, $file);
+ for my $address (@lines) {
$address =~ s/^\s*//g;
$address =~ s/\s*$//g;
$address = sanitize_address($address);
@@ -2038,8 +2052,6 @@
printf(__("(%s) Adding %s: %s from: '%s'\n"),
$prefix, $what, $address, $cmd) unless $quiet;
}
- close $fh
- or die sprintf(__("(%s) failed to close pipe to '%s'"), $prefix, $cmd);
return @addresses;
}
