commit 3ac076784c6ec90df618e6d7751ed83d71a4e0e3
author Simon Butcher <simon.butcher@arm.com> Sun Sep 04 14:28:44 2016 +0300
committer Janos Follath <janos.follath@arm.com> Mon Sep 05 14:53:13 2016 +0100
tree d64544fa0f163627d66fcc1d41f37d377de12296
parent ac22d1113c04a4f7ae63bae3189a9ea30294029e

Suppress shell errors in output_env.sh

When the output_env.sh script is executed, if any application wasn't found on
the path by hash, and error was being output, which as an error looked like
the script wasn't working.

This change redirects the output to stderr from hash to /dev/null to suppress
the error.

Also fixes a formatting error.

scripts/output_env.sh

diff --git a/scripts/output_env.sh b/scripts/output_env.sh
index 0b7c153..a77e6fe 100755
--- a/scripts/output_env.sh
+++ b/scripts/output_env.sh
@@ -13,8 +13,8 @@
 # This includes:
 #   - architecture of the system
 #   - type and version of the operating system
-#   - version of armcc, gcc-arm and gcc compilers
-#   - version of libc, clang, asan and valgrind
+#   - version of armcc, clang, gcc-arm and gcc compilers
+#   - version of libc, clang, asan and valgrind if installed
 #   - version of gnuTLS and OpenSSL
 
 echo
@@ -22,7 +22,7 @@
 uname -a
 
 echo
-if `hash armcc` > /dev/null; then
+if `hash armcc 2>/dev/null`; then
     echo "2) armcc:"
     armcc --vsn | head -n 2
 else
@@ -30,17 +30,15 @@
 fi
 
 echo
-if `hash arm-none-eabi-gcc` > /dev/null; then
-    echo
+if `hash arm-none-eabi-gcc 2>/dev/null`; then
     echo "3) gcc-arm:"
     arm-none-eabi-gcc --version | head -n 1
 else
-    echo
     echo "3) gcc-arm not found!"
 fi
 
 echo
-if `hash gcc` > /dev/null; then
+if `hash gcc 2>/dev/null`; then
     echo "4) gcc:"
     gcc --version | head -n 1
 else
@@ -48,7 +46,7 @@
 fi
 
 echo
-if `hash clang` > /dev/null; then
+if `hash clang 2>/dev/null`; then
     echo "5) clang:"
     clang --version | head -n 2
     clang -v 2>&1 | grep Selected
@@ -57,7 +55,7 @@
 fi
 
 echo
-if `hash ldd` > /dev/null; then
+if `hash ldd 2>/dev/null`; then
     echo "6) libc:"
     ldd --version | head -n 1
 else
@@ -65,7 +63,7 @@
 fi
 
 echo
-if `hash valgrind` > /dev/null; then
+if `hash valgrind 2>/dev/null`; then
     echo "7) valgrind:"
     valgrind --version
 else
@@ -73,7 +71,7 @@
 fi
 
 echo
-if `hash openssl` > /dev/null; then
+if `hash openssl 2>/dev/null`; then
     echo "8) openssl:"
     openssl version
 else
@@ -81,7 +79,7 @@
 fi
 
 echo
-if `hash gnutls-cli` > /dev/null; then
+if `hash gnutls-cli 2>/dev/null`; then
     echo "9) gnuTLS client:"
     gnutls-cli --version | head -n 1
 else
@@ -89,7 +87,7 @@
 fi
 
 echo
-if `hash gnutls-serv` > /dev/null; then
+if `hash gnutls-serv 2>/dev/null`; then
     echo "10) gnuTLS server:"
     gnutls-serv --version | head -n 1
 else
@@ -97,7 +95,7 @@
 fi
 
 echo
-if `hash dpkg` > /dev/null; then
+if `hash dpkg 2>/dev/null`; then
     echo "11) asan:"
     dpkg -s libasan2 2> /dev/null | grep -i version
     dpkg -s libasan1 2> /dev/null | grep -i version
@@ -107,3 +105,4 @@
 fi
 
 echo
+