[pm_get] update show the number of packages that can be upgraded

packages/manifest

@@ -337,7 +337,7 @@
 	["pm_get"] = {
 		["manifestVersion"] = "1.0",
 		["package"] = "pm_get",
-		["version"] = "1.3.3",
+		["version"] = "1.3.4",
 		["name"] = "pm get",
 		["repo"] = "tree/master/pm",
 		["description"] = "Download and install package for pm",

pm_get/bin/pm-get.lua

@@ -303,6 +303,22 @@ local function update()
         end
     end
     io.open(REPO_MANIFEST_CACHE, "w"):write(serialization.serialize(manifests)):close()
+
+    --check if packages need updating
+    local canBeUpgraded = 0
+    local remotePackages = getCachedPackageList()
+    local installedPackages = pm.getInstalled()
+    for pkgName, pkgManifest in pairs(installedPackages) do
+        for src, srcManifests in pairs(remotePackages) do
+            if (srcManifests[pkgName]) then
+                if (compareVersion(srcManifests[pkgName].version, pkgManifest.version)) then
+                    canBeUpgraded = canBeUpgraded + 1
+                    break --next package
+                end
+            end
+        end
+    end
+    printf("%s package(s) can be upgraded", canBeUpgraded)
 end
 
 local function printHelp()

programs.cfg

@@ -352,7 +352,7 @@
     dependencies = {
       ["pm"] = "/"
     },
-    version = "1.3.3"
+    version = "1.3.4"
     name = "pm get",
     description = "Download and install package for pm",
     authors = "AR2000AR",