Fix is_package_installed() check with dpkg

is_package_installed() incorrectly returned '0' for packages that
had 'un' status in the dpkg database.

Change-Id: I81b77486c2ed7717ed81cb2c2572fe6c4b394ffc

functions

@@ -317,16 +317,36 @@ function get_packages() {
                 continue
             fi
 
+            # Assume we want this package
+            package=${line%#*}
+            inst_pkg=1
+
+            # Look for # dist:xxx in comment
             if [[ $line =~ (.*)#.*dist:([^ ]*) ]]; then
                 # We are using BASH regexp matching feature.
                 package=${BASH_REMATCH[1]}
                 distros=${BASH_REMATCH[2]}
                 # In bash ${VAR,,} will lowecase VAR
-                [[ ${distros,,} =~ ${DISTRO,,} ]] && echo $package
+                # Look for a match in the distro list
-                continue
+                if [[ ! ${distros,,} =~ ${DISTRO,,} ]]; then
+                    # If no match then skip this package
+                    inst_pkg=0
+                fi
             fi
 
-            echo ${line%#*}
+            # Look for # testonly in comment
+            if [[ $line =~ (.*)#.*testonly.* ]]; then
+                package=${BASH_REMATCH[1]}
+                # Are we installing test packages? (test for the default value)
+                if [[ $INSTALL_TESTONLY_PACKAGES = "False" ]]; then
+                    # If not installing test packages the skip this package
+                    inst_pkg=0
+                fi
+            fi
+
+            if [[ $inst_pkg = 1 ]]; then
+                echo $package
+            fi
         done
         IFS=$OIFS
     done
@@ -912,7 +932,7 @@ function is_package_installed() {
     fi
 
     if [[ "$os_PACKAGE" = "deb" ]]; then
-        dpkg -l "$@" > /dev/null 2> /dev/null
+        dpkg -s "$@" > /dev/null 2> /dev/null
     elif [[ "$os_PACKAGE" = "rpm" ]]; then
         rpm --quiet -q "$@"
     else

tests/functions.sh

@@ -367,3 +367,25 @@ if [[ "$VAL" -ne 0 ]]; then
 else
     echo "is_package_installed() on non-existing package failed"
 fi
+
+# test against removed package...was a bug on Ubuntu
+if is_ubuntu; then
+    PKG=cowsay
+    if ! (dpkg -s $PKG >/dev/null 2>&1); then
+        # it was never installed...set up the condition
+        sudo apt-get install -y cowsay >/dev/null 2>&1
+    fi
+    if (dpkg -s $PKG >/dev/null 2>&1); then
+        # remove it to create the 'un' status
+        sudo dpkg -P $PKG >/dev/null 2>&1
+    fi
+
+    # now test the installed check on a deleted package
+    is_package_installed $PKG
+    VAL=$?
+    if [[ "$VAL" -ne 0 ]]; then
+        echo "OK"
+    else
+        echo "is_package_installed() on deleted package failed"
+    fi
+fi