Replace "echo -e" with "printf" to have the same behavior in dash or bash

oe-core removed the prerequisite to have sh as bash. POSIX doesn't define
any options and furthermore allows 'echo -e' to be the default behavior.
This means that in dash 'echo -e' will actually print '-e' and interpret
backslashes by default. We use instead 'printf' builtin command with or
without '\n' to simulate 'echo -e' or 'echo -n'.
'printf' needs format while 'echo' can be used without any arguments. So
'echo >' was replaced by 'printf "" >'.
'echo' without '-n' flag adds a new line by default so to keep the same
behavior of two new lines while using 'echo "\n"', 'printf "\n\n"' is
used.

[YOCTO #3138]

Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

7 files changed, 16 insertions, 16 deletions

diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
index e121088d59..49f2ea5b7c 100644
--- a/meta/classes/buildhistory.bbclass
+++ b/meta/classes/buildhistory.bbclass
@@ -293,13 +293,13 @@ buildhistory_get_image_installed() {
 	# Change delimiter from pipe to -> and set style for recommend lines
 	sed -i -e 's:|: -> :' -e 's:\[REC\]:[style=dotted]:' -e 's:$:;:' ${BUILDHISTORY_DIR_IMAGE}/depends.tmp
 	# Add header, sorted and de-duped contents and footer and then delete the temp file
-	echo -e "digraph depends {\n    node [shape=plaintext]" > ${BUILDHISTORY_DIR_IMAGE}/depends.dot
+	printf "digraph depends {\n    node [shape=plaintext]\n" > ${BUILDHISTORY_DIR_IMAGE}/depends.dot
 	cat ${BUILDHISTORY_DIR_IMAGE}/depends.tmp | sort | uniq >> ${BUILDHISTORY_DIR_IMAGE}/depends.dot
 	echo "}" >>  ${BUILDHISTORY_DIR_IMAGE}/depends.dot
 	rm ${BUILDHISTORY_DIR_IMAGE}/depends.tmp
 
 	# Produce installed package sizes list
-	echo -n > ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp
+	printf "" > ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp
 	cat $pkgcache | while read pkg pkgfile
 	do
 		if [ -f $pkgfile ] ; then
@@ -330,7 +330,7 @@ buildhistory_get_imageinfo() {
 	( cd ${IMAGE_ROOTFS} && find . -ls | awk '{ if ( $7 ~ /[0-9]/ ) printf "%s %10-s %10-s %10s %s %s %s\n", $3, $5, $6, $7, $11, $12, $13 ; else printf "%s %10-s %10-s %10s %s %s %s\n", $3, $5, $6, 0, $10, $11, $12 }' | sort -k5 > ${BUILDHISTORY_DIR_IMAGE}/files-in-image.txt )
 
 	# Record some machine-readable meta-information about the image
-	echo -n > ${BUILDHISTORY_DIR_IMAGE}/image-info.txt
+	printf ""  > ${BUILDHISTORY_DIR_IMAGE}/image-info.txt
 	cat >> ${BUILDHISTORY_DIR_IMAGE}/image-info.txt <<END
 ${@buildhistory_get_imagevars(d)}
 END
diff --git a/meta/classes/cml1.bbclass b/meta/classes/cml1.bbclass
index 67f17ad77e..37ed792b7c 100644
--- a/meta/classes/cml1.bbclass
+++ b/meta/classes/cml1.bbclass
@@ -20,7 +20,7 @@ python do_menuconfig() {
         except OSError:
             mtime = 0
 
-        oe_terminal("${SHELL} -c \"make menuconfig; if [ $? -ne 0 ]; then echo 'Command failed.'; echo -n 'Press any key to continue... '; read r; fi\"", '${PN} Configuration', d)
+        oe_terminal("${SHELL} -c \"make menuconfig; if [ $? -ne 0 ]; then echo 'Command failed.'; printf 'Press any key to continue... '; read r; fi\"", '${PN} Configuration', d)
 
         # FIXME this check can be removed when the minimum bitbake version has been bumped
         if hasattr(bb.build, 'write_taint'):
diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index 29fe93843f..ffcaf93c53 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -112,16 +112,16 @@ license_create_manifest() {
 		echo "PACKAGE NAME:" ${pkg} >> ${LICENSE_MANIFEST}
 		echo "PACKAGE VERSION:" ${pkged_pv} >> ${LICENSE_MANIFEST}
 		echo "RECIPE NAME:" ${pkged_pn} >> ${LICENSE_MANIFEST}
-		echo -n "LICENSE:" >> ${LICENSE_MANIFEST}
+		printf "LICENSE:" >> ${LICENSE_MANIFEST}
 		for lic in ${pkged_lic}; do
 			# to reference a license file trim trailing + symbol
 			if [ -e "${LICENSE_DIRECTORY}/${pkged_pn}/generic_${lic%+}" ]; then
-				echo -n " ${lic}" >> ${LICENSE_MANIFEST}
+				printf " ${lic}" >> ${LICENSE_MANIFEST}
 			else
 				echo "WARNING: The license listed ${lic} was not in the licenses collected for ${pkged_pn}"
 			fi
 		done
-		echo -e "\n" >> ${LICENSE_MANIFEST}
+		printf "\n\n" >> ${LICENSE_MANIFEST}
 	done
 
 	# Two options here:
diff --git a/meta/classes/package_deb.bbclass b/meta/classes/package_deb.bbclass
index 48511dfe90..3b42d3b194 100644
--- a/meta/classes/package_deb.bbclass
+++ b/meta/classes/package_deb.bbclass
@@ -192,7 +192,7 @@ deb_log_check() {
 		if (echo "$lf_txt" | grep -v log_check | grep "$keyword_die") >/dev/null 2>&1
 		then
 			echo "log_check: There were error messages in the logfile"
-			echo -e "log_check: Matched keyword: [$keyword_die]\n"
+			printf "log_check: Matched keyword: [$keyword_die]\n\n"
 			echo "$lf_txt" | grep -v log_check | grep -C 5 -i "$keyword_die"
 			echo ""
 			do_exit=1
diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index e94586e6ca..efe299eec8 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -181,7 +181,7 @@ ipk_log_check() {
 		if (echo "$lf_txt" | grep -v log_check | grep "$keyword_die") >/dev/null 2>&1
 		then
 			echo "log_check: There were error messages in the logfile"
-			echo -e "log_check: Matched keyword: [$keyword_die]\n"
+			printf "log_check: Matched keyword: [$keyword_die]\n\n"
 			echo "$lf_txt" | grep -v log_check | grep -C 5 -i "$keyword_die"
 			echo ""
 			do_exit=1
diff --git a/meta/classes/package_rpm.bbclass b/meta/classes/package_rpm.bbclass
index 61f0117216..64689d8d72 100644
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -110,7 +110,7 @@ rpm_log_check() {
 		if (echo "$lf_txt" | grep -v log_check | grep "$keyword_die") >/dev/null 2>&1
 		then
 			echo "log_check: There were error messages in the logfile"
-			echo -e "log_check: Matched keyword: [$keyword_die]\n"
+			printf "log_check: Matched keyword: [$keyword_die]\n\n"
 			echo "$lf_txt" | grep -v log_check | grep -C 5 -i "$keyword_die"
 			echo ""
 			do_exit=1
@@ -211,8 +211,8 @@ process_pkg_list_rpm() {
 	pkgs="$@"
 	local confbase=${INSTALL_CONFBASE_RPM}
 
-	echo -n > ${target_rootfs}/install/base_archs.pkglist
-	echo -n > ${target_rootfs}/install/ml_archs.pkglist
+	printf "" > ${target_rootfs}/install/base_archs.pkglist
+	printf "" > ${target_rootfs}/install/ml_archs.pkglist
 
 	for pkg in $pkgs; do
 		echo "Processing $pkg..."
diff --git a/meta/classes/populate_sdk_base.bbclass b/meta/classes/populate_sdk_base.bbclass
index 1c151d7186..2bff41f9e6 100644
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -118,7 +118,7 @@ fakeroot create_shar() {
 
 DEFAULT_INSTALL_DIR="${SDKPATH}"
 
-echo -n "Enter target directory for Poky SDK (default: $DEFAULT_INSTALL_DIR): "
+printf "Enter target directory for Poky SDK (default: $DEFAULT_INSTALL_DIR): "
 read target_sdk_dir
 
 if [ "$target_sdk_dir" = "" ]; then
@@ -128,7 +128,7 @@ fi
 eval target_sdk_dir=$target_sdk_dir
 target_sdk_dir=$(readlink -m $target_sdk_dir)
 
-echo -n "You are about to install Poky SDK to \"$target_sdk_dir\". Proceed[Y/n]?"
+printf "You are about to install Poky SDK to \"$target_sdk_dir\". Proceed[Y/n]?"
 read answer
 
 if [ "$answer" = "" ]; then
@@ -148,11 +148,11 @@ fi
 
 payload_offset=$(($(grep -na -m1 "^MARKER:$" $(basename $0)|cut -d':' -f1) + 1))
 
-echo -n "Extracting SDK..."
+printf "Extracting SDK..."
 tail -n +$payload_offset $(basename $0) | tar xj --strip-components=4 -C $target_sdk_dir
 echo "done"
 
-echo -n "Setting it up..."
+printf "Setting it up..."
 # fix environment paths
 env_setup_script=$(find $target_sdk_dir -name "environment-setup-${REAL_MULTIMACH_TARGET_SYS}")
 sed -e "s:$DEFAULT_INSTALL_DIR:$target_sdk_dir:g" -i $env_setup_script