hash: add a function to lookup hash algorithm by length

diff --git a/git-send-email.perl b/git-send-email.perl
index dc7e738e9ce462c85378b82b396dbda0728b971f..8200d58cdc62b628f77923305ecb79ff260155ea 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -122,6 +122,11 @@ sub usage {
        exit(1);
 }
 
+sub completion_helper {
+    print Git::command('format-patch', '--git-completion-helper');
+    exit(0);
+}
+
 # most mail servers generate the Date: header, but not all...
 sub format_2822_time {
        my ($time) = @_;
@@ -314,6 +319,7 @@ sub signal_handler {
 # needing, first, from the command line:
 
 my $help;
+my $git_completion_helper;
 my $rc = GetOptions("h" => \$help,
                     "dump-aliases" => \$dump_aliases);
 usage() unless $rc;
@@ -377,9 +383,11 @@ sub signal_handler {
                    "no-xmailer" => sub {$use_xmailer = 0},
                    "batch-size=i" => \$batch_size,
                    "relogin-delay=i" => \$relogin_delay,
+                   "git-completion-helper" => \$git_completion_helper,
         );
 
 usage() if $help;
+completion_helper() if $git_completion_helper;
 unless ($rc) {
     usage();
 }
@@ -457,6 +465,8 @@ sub read_config {
 my(%suppress_cc);
 if (@suppress_cc) {
        foreach my $entry (@suppress_cc) {
+               # Please update $__git_send_email_suppresscc_options
+               # in git-completion.bash when you add new options.
                die sprintf(__("Unknown --suppress-cc field: '%s'\n"), $entry)
                        unless $entry =~ /^(?:all|cccmd|cc|author|self|sob|body|bodycc|misc-by)$/;
                $suppress_cc{$entry} = 1;
@@ -486,6 +496,8 @@ sub read_config {
 if ($confirm_unconfigured) {
        $confirm = scalar %suppress_cc ? 'compose' : 'auto';
 };
+# Please update $__git_send_email_confirm_options in
+# git-completion.bash when you add new options.
 die sprintf(__("Unknown --confirm setting: '%s'\n"), $confirm)
        unless $confirm =~ /^(?:auto|cc|compose|always|never)/;
 
@@ -579,6 +591,8 @@ sub parse_sendmail_aliases {
                if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
                        $aliases{$1} = [ $2 ];
                }}}
+       # Please update _git_config() in git-completion.bash when you
+       # add new MUAs.
 );
 
 if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
@@ -1848,7 +1862,7 @@ sub apply_transfer_encoding {
        my $from = shift;
        my $to = shift;
 
-       return $message if ($from eq $to and $from ne '7bit');
+       return ($message, $to) if ($from eq $to and $from ne '7bit');
 
        require MIME::QuotedPrint;
        require MIME::Base64;