Add is_package_installed function to know if a package is installed
This helps reduce the distro-dependent code in stack.sh, and also fixes
the bug where "rpm -qa | grep sudo" will work if gnome-sudoku is
installed.
Rebased
Change-Id: Ib1330b29b915b41d9724197edd791f0d4e0fe373
diff --git a/functions b/functions
index 8ed9960..664cfa0 100644
--- a/functions
+++ b/functions
@@ -548,6 +548,26 @@
}
+# Distro-agnostic function to tell if a package is installed
+# is_package_installed package [package ...]
+function is_package_installed() {
+ if [[ -z "$@" ]]; then
+ return 1
+ fi
+
+ if [[ -z "$os_PACKAGE" ]]; then
+ GetOSVersion
+ fi
+ if [[ "$os_PACKAGE" = "deb" ]]; then
+ dpkg -l "$@" > /dev/null
+ return $?
+ else
+ rpm --quiet -q "$@"
+ return $?
+ fi
+}
+
+
# Test if the named environment variable is set and not zero length
# is_set env-var
function is_set() {