send-email: allow send-email to run outside a repo

send-email is supposed to be able to run from outside a repo. This
ability was broken by commits caf0c3d6 (make the message file name more
specific) and 5df9fcf6 (interpret unknown files as revision lists).

This commit provides a fix for both.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-send-email.perl b/git-send-email.perl
index 77ca8fe8803f102b877c4d63ed1ffa41920cbd54..9dad10092b56d724b84ff703739b001edebf4a20 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -23,7 +23,7 @@ use Getopt::Long;
 use Text::ParseWords;
 use Data::Dumper;
 use Term::ANSIColor;
-use File::Temp qw/ tempdir /;
+use File::Temp qw/ tempdir tempfile /;
 use Error qw(:try);
 use Git;
 
@@ -156,7 +156,10 @@ if ($@) {
 # Behavior modification variables
 my ($quiet, $dry_run) = (0, 0);
 my $format_patch;
-my $compose_filename = $repo->repo_path() . "/.gitsendemail.msg.$$";
+my $compose_filename = ($repo ?
+       tempfile(".gitsendemail.msg.XXXXXX", DIR => $repo->repo_path()) :
+       tempfile(".gitsendemail.msg.XXXXXX", DIR => "."))[1];
+
 
 # Handle interactive edition of files.
 my $multiedit;
@@ -267,6 +270,9 @@ unless ($rc) {
     usage();
 }
 
+die "Cannot run git format-patch from outside a repository\n"
+       if $format_patch and not $repo;
+
 # Now, let's fill any that aren't set in with defaults:
 
 sub read_config {
@@ -404,6 +410,7 @@ if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
 
 # returns 1 if the conflict must be solved using it as a format-patch argument
 sub check_file_rev_conflict($) {
+       return unless $repo;
        my $f = shift;
        try {
                $repo->command('rev-parse', '--verify', '--quiet', $f);
@@ -445,6 +452,8 @@ while (defined(my $f = shift @ARGV)) {
 }
 
 if (@rev_list_opts) {
+       die "Cannot run git format-patch from outside a repository\n"
+               unless $repo;
        push @files, $repo->command('format-patch', '-o', tempdir(CLEANUP => 1), @rev_list_opts);
 }