Only warn if input and output files are equal.

[ssic.git] / src / ssic.pl

diff --git a/src/ssic.pl b/src/ssic.pl
index d678556be7716789249ad70d4c540e31f266ad71..750c77be6b9021a72284ed8cec2d844390c52c5d 100644 (file)
--- a/src/ssic.pl
+++ b/src/ssic.pl
@@ -111,8 +111,8 @@ sub compile
        my $var_name;
        my $var_value;
 
-       if ($input eq $output) {
-               error(4, "Input and output files are equal\n");
+       if ($input eq $output and $input ne "-") {
+               warning("Input and output files are equal\n");
        }
 
        if ($input eq "-") {
@@ -127,8 +127,8 @@ sub compile
        if ($output eq "-") {
                $output_fh = *STDOUT;
        } else {
-               if (not open($output_fh, ">", $output)) {
-                       error(4, "%s: %s\n", $output, $!);
+               if (not open($output_fh, ">", $output . "~")) {
+                       error(4, "%s: %s\n", $output . "~", $!);
                }
        }
 
@@ -152,6 +152,17 @@ sub compile
        }
 
        print($output_fh $ssi->process(<$input_fh>));
+
+       if ($input ne "-") {
+               close($input_fh);
+       }
+       if ($output ne "-") {
+               close($output_fh);
+       }
+
+       if (not rename($output . "~", $output)) {
+               error(4, "%s: %s\n", $output, $!);
+       }
 }
 
 main();