Merge branch 'maint'

* maint:
  git-remote: exit with non-zero status after detecting errors.
  rebase -i: squash should retain the authorship of the _first_ commit
  git-add--interactive: Improve behavior on bogus input
  git-add--interactive: Allow Ctrl-D to exit

Documentation/git-rebase.txt

@@ -298,7 +298,7 @@ rebasing.
 If you want to fold two or more commits into one, replace the command
 "pick" with "squash" for the second and subsequent commit.  If the
 commits had different authors, it will attribute the squashed commit to
-the author of the last commit.
+the author of the first commit.
 
 In both cases, or when a "pick" does not succeed (because of merge
 errors), the loop will stop to let you fix things, and you can continue

git-add--interactive.perl

@@ -213,9 +213,13 @@ sub list_and_choose {
 			print ">> ";
 		}
 		my $line = <STDIN>;
-		last if (!$line);
+		if (!$line) {
+			print "\n";
+			$opts->{ON_EOF}->() if $opts->{ON_EOF};
+			last;
+		}
 		chomp $line;
-		my $donesomething = 0;
+		last if $line eq '';
 		for my $choice (split(/[\s,]+/, $line)) {
 			my $choose = 1;
 			my ($bottom, $top);
@@ -247,12 +251,11 @@ sub list_and_choose {
 				next TOPLOOP;
 			}
 			for ($i = $bottom-1; $i <= $top-1; $i++) {
-				next if (@stuff <= $i);
+				next if (@stuff <= $i || $i < 0);
 				$chosen[$i] = $choose;
-				$donesomething++;
 			}
 		}
-		last if (!$donesomething || $opts->{IMMEDIATE});
+		last if ($opts->{IMMEDIATE});
 	}
 	for ($i = 0; $i < @stuff; $i++) {
 		if ($chosen[$i]) {
@@ -791,6 +794,7 @@ sub main_loop {
 					     SINGLETON => 1,
 					     LIST_FLAT => 4,
 					     HEADER => '*** Commands ***',
+					     ON_EOF => \&quit_cmd,
 					     IMMEDIATE => 1 }, @cmd);
 		if ($it) {
 			eval {

git-rebase--interactive.sh

@@ -276,9 +276,9 @@ do_next () {
 		esac
 
 		failed=f
+		author_script=$(get_author_ident_from_commit HEAD)
 		output git reset --soft HEAD^
 		pick_one -n $sha1 || failed=t
-		author_script=$(get_author_ident_from_commit $sha1)
 		echo "$author_script" > "$DOTEST"/author-script
 		case $failed in
 		f)

git-remote.perl

@@ -218,7 +218,7 @@ sub prune_remote {
 	my ($name, $ls_remote) = @_;
 	if (!exists $remote->{$name}) {
 		print STDERR "No such remote $name\n";
-		return;
+		return 1;
 	}
 	my $info = $remote->{$name};
 	update_ls_remote($ls_remote, $info);
@@ -229,13 +229,14 @@ sub prune_remote {
 		my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune");
 		$git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]);
 	}
+	return 0;
 }
 
 sub show_remote {
 	my ($name, $ls_remote) = @_;
 	if (!exists $remote->{$name}) {
 		print STDERR "No such remote $name\n";
-		return;
+		return 1;
 	}
 	my $info = $remote->{$name};
 	update_ls_remote($ls_remote, $info);
@@ -265,6 +266,7 @@ sub show_remote {
 		print "  Local branch(es) pushed with 'git push'\n";
 		print "    @pushed\n";
 	}
+	return 0;
 }
 
 sub add_remote {
@@ -381,9 +383,11 @@ sub add_usage {
 		print STDERR "Usage: git remote show <remote>\n";
 		exit(1);
 	}
+	my $status = 0;
 	for (; $i < @ARGV; $i++) {
-		show_remote($ARGV[$i], $ls_remote);
+		$status |= show_remote($ARGV[$i], $ls_remote);
 	}
+	exit($status);
 }
 elsif ($ARGV[0] eq 'update') {
 	if (@ARGV <= 1) {
@@ -409,9 +413,11 @@ sub add_usage {
 		print STDERR "Usage: git remote prune <remote>\n";
 		exit(1);
 	}
+	my $status = 0;
 	for (; $i < @ARGV; $i++) {
-		prune_remote($ARGV[$i], $ls_remote);
+		$status |= prune_remote($ARGV[$i], $ls_remote);
 	}
+        exit($status);
 }
 elsif ($ARGV[0] eq 'add') {
 	my %opts = ();

t/t3404-rebase-interactive.sh

@@ -180,7 +180,7 @@ test_expect_success 'squash' '
 '
 
 test_expect_success 'retain authorship when squashing' '
-	git show HEAD | grep "^Author: Nitfol"
+	git show HEAD | grep "^Author: Twerp Snog"
 '
 
 test_expect_success 'preserve merges with -p' '