From 3946ad5f53f8f474107870a5592c53b0b42bfe9a Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Fri, 30 Oct 2015 20:33:40 -0400
Subject: tools/shmin.sh: Support writing to stdout

---
diff --git a/tools/shmin.sh b/tools/shmin.sh
index d6f35ea..73df7aa 100755
--- a/tools/shmin.sh
+++ b/tools/shmin.sh
@@ -213,16 +213,18 @@ minify()
 	fi
 
 	# Write the output.
-	if ! printf '%s\n' "${buffer}" >"${output}~"; then
-		die 'Cannot write file "%s"' "${output}~"
-	fi
-
-	# Set output file name.
-	if ! cat "${output}~" >"${output}"; then
-		die 'Cannot rename file to "%s"' "${output}"
-	fi
-	if ! rm "${output}~"; then
-		die 'Cannot remove file "%s"' "${output}~"
+	if [ "x${output}" = 'x-' ]; then
+		printf '%s\n' "${buffer}"
+	else
+		if ! printf '%s\n' "${buffer}" >"${output}~"; then
+			die 'Cannot write file "%s"' "${output}~"
+		fi
+		if ! cat "${output}~" >"${output}"; then
+			die 'Cannot rename file to "%s"' "${output}"
+		fi
+		if ! rm "${output}~"; then
+			die 'Cannot remove file "%s"' "${output}~"
+		fi
 	fi
 }
 
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