tests: factor out terminal handling from t7006

diff --git a/git-send-email.perl b/git-send-email.perl
index 111c981229bf2c0bc6afa4a22db011b68d93fdfa..8cc416115569e38317e63d1638d361d579518b73 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -24,6 +24,7 @@
 use Data::Dumper;
 use Term::ANSIColor;
 use File::Temp qw/ tempdir tempfile /;
+use File::Spec::Functions qw(catfile);
 use Error qw(:try);
 use Git;
 
@@ -54,6 +55,7 @@ sub usage {
     --in-reply-to           <str>  * Email "In-Reply-To:"
     --annotate                     * Review each patch that will be sent in an editor.
     --compose                      * Open an editor for introduction.
+    --8bit-encoding         <str>  * Encoding to assume 8bit mails if undeclared
 
   Sending:
     --envelope-sender       <str>  * Email envelope sender.
@@ -84,6 +86,7 @@ sub usage {
     --[no-]validate                * Perform patch sanity checks. Default on.
     --[no-]format-patch            * understand any non optional arguments as
                                      `git format-patch` ones.
+    --force                        * Send even if safety checks would prevent it.
 
 EOT
        exit(1);
@@ -161,6 +164,7 @@ sub format_2822_time {
 my ($quiet, $dry_run) = (0, 0);
 my $format_patch;
 my $compose_filename;
+my $force = 0;
 
 # Handle interactive edition of files.
 my $multiedit;
@@ -191,6 +195,7 @@ sub do_edit {
 my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts, $smtp_domain);
 my ($validate, $confirm);
 my (@suppress_cc);
+my ($auto_8bit_encoding);
 
 my ($debug_net_smtp) = 0;              # Net::SMTP, see send_message()
 
@@ -222,6 +227,7 @@ sub do_edit {
     "multiedit" => \$multiedit,
     "confirm"   => \$confirm,
     "from" => \$sender,
+    "assume8bitencoding" => \$auto_8bit_encoding,
 );
 
 # Help users prepare for 1.7.0
@@ -297,6 +303,8 @@ sub signal_handler {
                    "thread!" => \$thread,
                    "validate!" => \$validate,
                    "format-patch!" => \$format_patch,
+                   "8bit-encoding=s" => \$auto_8bit_encoding,
+                   "force" => \$force,
         );
 
 unless ($rc) {
@@ -507,7 +515,7 @@ ($)
                opendir(DH,$f)
                        or die "Failed to opendir $f: $!";
 
-               push @files, grep { -f $_ } map { +$f . "/" . $_ }
+               push @files, grep { -f $_ } map { catfile($f, $_) }
                                sort readdir(DH);
                closedir(DH);
        } elsif ((-f $f or -p $f) and !check_file_rev_conflict($f)) {
@@ -669,6 +677,45 @@ sub ask {
        return undef;
 }
 
+my %broken_encoding;
+
+sub file_declares_8bit_cte($) {
+       my $fn = shift;
+       open (my $fh, '<', $fn);
+       while (my $line = <$fh>) {
+               last if ($line =~ /^$/);
+               return 1 if ($line =~ /^Content-Transfer-Encoding: .*8bit.*$/);
+       }
+       close $fh;
+       return 0;
+}
+
+foreach my $f (@files) {
+       next unless (body_or_subject_has_nonascii($f)
+                    && !file_declares_8bit_cte($f));
+       $broken_encoding{$f} = 1;
+}
+
+if (!defined $auto_8bit_encoding && scalar %broken_encoding) {
+       print "The following files are 8bit, but do not declare " .
+               "a Content-Transfer-Encoding.\n";
+       foreach my $f (sort keys %broken_encoding) {
+               print "    $f\n";
+       }
+       $auto_8bit_encoding = ask("Which 8bit encoding should I declare [UTF-8]? ",
+                                 default => "UTF-8");
+}
+
+if (!$force) {
+       for my $f (@files) {
+               if (get_patch_subject($f) =~ /\*\*\* SUBJECT HERE \*\*\*/) {
+                       die "Refusing to send because the patch\n\t$f\n"
+                               . "has the template subject '*** SUBJECT HERE ***'. "
+                               . "Pass --force if you really want to send.\n";
+               }
+       }
+}
+
 my $prompting = 0;
 if (!defined $sender) {
        $sender = $repoauthor || $repocommitter || '';
@@ -862,7 +909,7 @@ sub sanitize_address {
 
 sub valid_fqdn {
        my $domain = shift;
-       return !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
+       return defined $domain && !($^O eq 'darwin' && $domain =~ /\.local$/) && $domain =~ /\./;
 }
 
 sub maildomain_net {
@@ -1221,6 +1268,18 @@ sub send_message {
                        or die "(cc-cmd) failed to close pipe to '$cc_cmd'";
        }
 
+       if ($broken_encoding{$t} && !$has_content_type) {
+               $has_content_type = 1;
+               push @xh, "MIME-Version: 1.0",
+                       "Content-Type: text/plain; charset=$auto_8bit_encoding",
+                       "Content-Transfer-Encoding: 8bit";
+               $body_encoding = $auto_8bit_encoding;
+       }
+
+       if ($broken_encoding{$t} && !is_rfc2047_quoted($subject)) {
+               $subject = quote_rfc2047($subject, $auto_8bit_encoding);
+       }
+
        if (defined $author and $author ne $sender) {
                $message = "From: $author\n\n$message";
                if (defined $author_encoding) {
@@ -1233,6 +1292,7 @@ sub send_message {
                                }
                        }
                        else {
+                               $has_content_type = 1;
                                push @xh,
                                  'MIME-Version: 1.0',
                                  "Content-Type: text/plain; charset=$author_encoding",
@@ -1310,3 +1370,17 @@ sub file_has_nonascii {
        }
        return 0;
 }
+
+sub body_or_subject_has_nonascii {
+       my $fn = shift;
+       open(my $fh, '<', $fn)
+               or die "unable to open $fn: $!\n";
+       while (my $line = <$fh>) {
+               last if $line =~ /^$/;
+               return 1 if $line =~ /^Subject.*[^[:ascii:]]/;
+       }
+       while (my $line = <$fh>) {
+               return 1 if $line =~ /[^[:ascii:]]/;
+       }
+       return 0;
+}