[PATCH V3 3/3] bash: add pkg_postrm to remove the entry in /etc/shells

[Ming Liu <ming.liu@windriver.com>]

Signed-off-by: Ming Liu <ming.liu@windriver.com>
---
 meta/recipes-extended/bash/bash.inc |   18 +++++++++++++++---
 1 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/meta/recipes-extended/bash/bash.inc b/meta/recipes-extended/bash/bash.inc
index 64b476f..7c18f37 100644
--- a/meta/recipes-extended/bash/bash.inc
+++ b/meta/recipes-extended/bash/bash.inc
@@ -44,7 +44,19 @@ do_install_ptest () {
 }
 
 pkg_postinst_${PN} () {
-	touch $D${sysconfdir}/shells
-	grep -q "bin/bash" $D${sysconfdir}/shells || echo /bin/bash >> $D${sysconfdir}/shells
-	grep -q "bin/sh" $D${sysconfdir}/shells || echo /bin/sh >> $D${sysconfdir}/shells
+	if [ ! -f $D${sysconfdir}/shells ]; then
+		touch $D${sysconfdir}/shells
+	fi
+
+	grep -q "^${base_bindir}/bash$" $D${sysconfdir}/shells || echo ${base_bindir}/bash >> $D${sysconfdir}/shells
+}
+
+pkg_postrm_${PN} () {
+	if [ -f $D${sysconfdir}/shells ]; then
+		printf "$(grep -v "^${base_bindir}/bash$" $D${sysconfdir}/shells)\n" > $D${sysconfdir}/shells
+
+		if [ ! -s $D${sysconfdir}/shells ]; then
+			rm $D${sysconfdir}/shells
+		fi
+	fi
 }
-- 
1.7.1