lib.sh: Add a few functions for getting data from pacman

lib.sh

@@ -67,10 +67,10 @@ debug() {
 run_cmd() {
     # $1: The command to run
     if [[ $DRY_RUN -eq 1 ]]; then
-        plain "$1"
+        plain "$@"
     else
         plain "Running command: $1"
-        eval "$1"
+        eval "$@"
         plain "Command returned: $?"
     fi
 }
@@ -99,3 +99,27 @@ die() {
 	(( $# )) && error "$@"
 	cleanup 1
 }
+
+package_arch_from_path() {
+    # $1: Package path
+    pacman -Qip "$2" | grep "Architecture" | cut -d : -f 2 | tr -d ' '
+    return $?
+}
+
+package_name_from_path() {
+    # $1: Package path
+    pacman -Qip "$2" | grep "Name" | cut -d : -f 2 | tr -d ' '
+    return $?
+}
+
+package_version_from_path() {
+    # $1: Package path
+    pacman -Qip "$2" | grep "Version" | cut -d : -f 2 | tr -d ' '
+    return $?
+}
+
+package_version_from_syncdb() {
+    # $1: Package name
+    pacman -Si "$2" | grep "Version" | cut -d : -f 2 | tr -d ' '
+    return $?
+}