From 2fed0d369b9f501de509dea5d25c892b47b4624d Mon Sep 17 00:00:00 2001
From: Marek Chalupa <mchqwerty@gmail.com>
Date: Mon, 23 May 2016 19:50:36 +0200
Subject: [PATCH] ps-show,rd-show,llvmdg-dump: use xdot when available

nice viewer

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
---
 tools/llvmdg-show | 20 +++++++++++++++++---
 tools/ps-show     | 22 +++++++++++++++++++---
 tools/rd-show     | 20 +++++++++++++++++---
 3 files changed, 53 insertions(+), 9 deletions(-)

diff --git a/tools/llvmdg-show b/tools/llvmdg-show
index 013b89160..00634bb1b 100755
--- a/tools/llvmdg-show
+++ b/tools/llvmdg-show
@@ -4,12 +4,26 @@ DIR=`dirname $0`
 
 #defult program
 GUI=xdg-open
+DIRECTDOT=0
 
-if which okular &>/dev/null; then
+set -e
+
+if which xdot &>/dev/null; then
+	GUI=xdot
+	DIRECTDOT=1
+elif which okular &>/dev/null; then
 	GUI=okular
 elif which evince &>/dev/null; then
 	GUI=evince
 fi
 
-$DIR/llvm-dg-dump $* > ldg-show-output.dot && dot -Tpdf ldg-show-output.dot -o ldg-show-output.pdf && $GUI ldg-show-output.pdf
-rm ldg-show-output*
+$DIR/llvm-dg-dump $* > _ldg-show-output.dot
+
+if [ $DIRECTDOT -eq 1 ]; then
+	$GUI _ldg-show-output.dot
+else
+	dot -Tpdf _ldg-show-output.dot -o ldg-show-output.pdf
+	$GUI _ldg-show-output.pdf
+fi
+
+rm _ldg-show-output*
diff --git a/tools/ps-show b/tools/ps-show
index 8f267b206..594a6ea33 100755
--- a/tools/ps-show
+++ b/tools/ps-show
@@ -2,12 +2,28 @@
 
 #defult program
 GUI=xdg-open
+DIRECTDOT=0
 
-if which okular &>/dev/null; then
+# exit on any error
+set -e
+
+if which xdot &>/dev/null; then
+	GUI=xdot
+	DIRECTDOT=1
+elif which okular &>/dev/null; then
 	GUI=okular
 elif which evince &>/dev/null; then
 	GUI=evince
 fi
 
-`dirname $0`/llvm-ps-dump -dot $@ > _ps.dot && dot -Tpdf -o _ps.pdf _ps.dot && $GUI _ps.pdf
-rm _ps.pdf _ps.dot
+`dirname $0`/llvm-ps-dump -dot $@ > _ps.dot
+
+
+if [ $DIRECTDOT -eq 1 ]; then
+	$GUI _ps.dot
+	rm _ps.dot
+else
+	dot -Tpdf -o _ps.pdf _ps.dot
+	$GUI _ps.pdf
+	rm _ps.pdf _ps.dot
+fi
diff --git a/tools/rd-show b/tools/rd-show
index c8cf7e18c..3731a0df6 100755
--- a/tools/rd-show
+++ b/tools/rd-show
@@ -2,12 +2,26 @@
 
 #defult program
 GUI=xdg-open
+DIRECTDOT=0
 
-if which okular &>/dev/null; then
+set -e
+
+if which xdot &>/dev/null; then
+	GUI=xdot
+	DIRECTDOT=1
+elif which okular &>/dev/null; then
 	GUI=okular
 elif which evince &>/dev/null; then
 	GUI=evince
 fi
 
-`dirname $0`/llvm-rd-dump -dot $@ > _rd.dot && dot -Tpdf -o _rd.pdf _rd.dot && $GUI _rd.pdf
-rm _rd.pdf _rd.dot
+`dirname $0`/llvm-rd-dump -dot $@ > _rd.dot
+
+if [ $DIRECTDOT -eq 1 ]; then
+	$GUI _rd.dot
+	rm _rd.dot
+else
+	dot -Tpdf -o _rd.pdf _rd.dot
+	$GUI _rd.pdf
+	rm _rd.pdf _rd.dot
+fi