diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.3 (2019-06-xx)
+- add --pattern for href filename globbing
+- use http-directory-0.1.4 for httpDirectory basic filtering
+
+## 0.2.1 (2019-06-06)
+- better recursion handling and href filtering
+
 ## 0.2 (2019-06-05)
 - print summary
 - add --ignore-arch
diff --git a/Main.hs b/Main.hs
--- a/Main.hs
+++ b/Main.hs
@@ -21,6 +21,7 @@
 import Network.HTTP.Directory
 import System.Directory (doesDirectoryExist, listDirectory)
 import System.FilePath ((</>))
+import System.FilePath.Glob (compile, match)
 -- for warning
 import System.IO (hPutStrLn, stderr)
 
@@ -33,7 +34,7 @@
 main =
   simpleCmdArgs (Just version) "Package tree comparison tool"
   "pkgtreediff compares the packages in two OS trees" $
-    compareDirs <$> recursiveOpt <*> ignoreVR <*> ignoreArch <*> modeOpt  <*> strArg "URL/DIR1" <*> strArg "URL/DIR2"
+    compareDirs <$> recursiveOpt <*> ignoreVR <*> ignoreArch <*> modeOpt  <*> optional patternOpt <*> strArg "URL/DIR1" <*> strArg "URL/DIR2"
 
 data Mode = AutoSummary | NoSummary | ShowSummary | Added | Deleted | Updated
   deriving Eq
@@ -43,7 +44,7 @@
   flagWith' Added 'N' "new" "Show only added packages" <|>
   flagWith' Deleted 'D' "deleted" "Show only removed packages" <|>
   flagWith' Updated 'U' "updated" "Show only updated packages" <|>
-  flagWith' ShowSummary 's' "show-summary" ("Show summary of changes (default for >" <> show summaryThreshold <> " changes)") <|>
+  flagWith' ShowSummary 's' "show-summary" ("Show summary of changes (default when >" <> show summaryThreshold <> " changes)") <|>
   flagWith AutoSummary NoSummary 'S' "no-summary" "Do not display summary"
 
 ignoreArch :: Parser Bool
@@ -60,11 +61,14 @@
 recursiveOpt :: Parser Bool
 recursiveOpt = switchWith 'r' "recursive" "Recursive down into subdirectories"
 
+patternOpt :: Parser String
+patternOpt = strOptionWith 'p' "pattern" "PKGPATTERN" "Limit out to package glob matches"
+
 summaryThreshold :: Int
 summaryThreshold = 20
 
-compareDirs :: Bool -> Ignore -> Bool -> Mode -> String -> String -> IO ()
-compareDirs recursive ignore igArch mode tree1 tree2 = do
+compareDirs :: Bool -> Ignore -> Bool -> Mode -> Maybe String -> String -> String -> IO ()
+compareDirs recursive ignore igArch mode mpattern tree1 tree2 = do
   (ps1,ps2) <- getTrees tree1 tree2
   let diff = diffPkgs ignore ps1 ps2
   mapM_ T.putStrLn . mapMaybe (showPkgDiff mode) $ diff
@@ -88,7 +92,7 @@
 
     readPackages isUrl mmgr loc = do
       fs <- (if isUrl then httpPackages True (fromJust mmgr) else dirPackages True) loc
-      let ps = map ((if igArch then binToPkg else id) . readPkg) fs
+      let ps = map ((if igArch then binToPkg else id) . readPkg) $ filter (maybe (const True) (match . compile) mpattern . T.unpack) fs
       return $ sort (nub ps)
 
     binToPkg :: Package -> Package
@@ -97,13 +101,12 @@
     httpPackages recurse mgr url = do
       exists <- httpExists mgr url
       fs <- if exists
-               -- nub here because opensuse has dup img links
-            then nub . filter (\ f -> f /= "../" && (not . isHttp) (T.unpack f) && not ("/" `T.isPrefixOf` f) && ("/" `T.isSuffixOf` f || ".rpm" `T.isSuffixOf` f)) <$> httpDirectory mgr url
+            then filter (\ f -> "/" `T.isSuffixOf` f || ".rpm" `T.isSuffixOf` f) <$> httpDirectory mgr url
             else error' $ "Could not get " <> url
       if (recurse || recursive) && all isDir fs then concatMapM (httpPackages False mgr) (map ((url </>) . T.unpack) fs) else return $ filter (not . isDir) fs
 
     dirPackages recurse dir = do
-      fs <- sort <$> listDirectory dir
+      fs <- sort . filter (".rpm" `isSuffixOf`) <$> listDirectory dir
       alldirs <- mapM doesDirectoryExist fs
       if (recurse || recursive) && and alldirs then concatMapM (dirPackages False) (map (dir </>) fs) else return $ filter (not . isDir) $ map T.pack fs
 
@@ -171,7 +174,7 @@
 showPkgDiff Updated (PkgArch p1 p2) = Just $ showArchChange p1 p2
 showPkgDiff mode (PkgAdd p) | isDefault mode = Just $ "+ " <> showPkg p
 showPkgDiff mode (PkgDel p) | isDefault mode  = Just $ "- " <> showPkg p
-showPkgDiff mode (PkgUpdate p1 p2) | isDefault mode = Just $ " " <> showPkgUpdate p1 p2
+showPkgDiff mode (PkgUpdate p1 p2) | isDefault mode = Just $ showPkgUpdate p1 p2
 showPkgDiff mode (PkgArch p1 p2) | isDefault mode = Just $ "! " <> showArchChange p1 p2
 showPkgDiff _ _ = Nothing
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -8,11 +8,54 @@
 
 ## Usage example
 
-```
-$ pkgtreediff treeurl1 treeurl2
-+ newPackage v
-- packageOld v'
- updatedPackage: v1 -> v2
+```bash session
+$ pkgtreediff --ignore-release https://dl.fedoraproject.org/pub/fedora/linux/releases/{29,30}/Workstation/source/tree/Packages/
+ ImageMagick.src: 6.9.9.38-3.fc29 -> 6.9.10.28-1.fc30
+ LibRaw.src: 0.19.0-6.fc29 -> 0.19.2-3.fc30
+ ModemManager.src: 1.8.0-4.fc29 -> 1.10.0-1.fc30
+ NetworkManager.src: 1.12.4-1.fc29 -> 1.16.0-1.fc30
+ NetworkManager-openvpn.src: 1.8.6-1.fc29 -> 1.8.10-1.fc30
+ NetworkManager-ssh.src: 1.2.7-5.fc29 -> 1.2.9-1.fc30
+ PackageKit.src: 1.1.11-1.fc29 -> 1.1.12-5.fc30
+ PyYAML.src: 4.2-0.1.b4.fc29 -> 5.1-1.fc30
+ SDL2.src: 2.0.8-6.fc29 -> 2.0.9-3.fc30
+ abrt.src: 2.11.0-1.fc29 -> 2.12.0-2.fc30
+ adobe-source-han-code-jp-fonts.src: 2.000-6.fc29 -> 2.011-2.fc30
+ adobe-source-han-sans-cn-fonts.src: 1.004-8.fc29 -> 2.000-2.fc30
+ adobe-source-han-sans-jp-fonts.src: 1.004-4.fc29 -> 2.000-2.fc30
+ adobe-source-han-sans-kr-fonts.src: 1.004-4.fc29 -> 2.000-2.fc30
+ adobe-source-han-sans-tw-fonts.src: 1.004-9.fc29 -> 2.000-2.fc30
+ adobe-source-serif-pro-fonts.src: 2.000-5.fc29 -> 2.010.1.010-1.fc30
+ adwaita-icon-theme.src: 3.30.0-1.fc29 -> 3.32.0-1.fc30
+- aldusleaf-crimson-text-fonts.src  0.8-0.10.20130806.fc29
+- almas-mongolian-title-fonts.src  1.0-11.fc29
+ alsa-lib.src: 1.1.6-3.fc29 -> 1.1.8-2.fc30
+:
+:
+ wpa_supplicant.src: 2.6-17.fc29 -> 2.7-5.fc30
+ wpan-tools.src: 0.8-3.fc29 -> 0.9-2.fc30
++ xdg-dbus-proxy.src  0.1.1-2.fc30
+ xdg-desktop-portal.src: 1.0.2-1.fc29 -> 1.2.0-3.fc30
+ xdg-desktop-portal-gtk.src: 1.0.2-1.fc29 -> 1.2.0-3.fc30
+ xen.src: 4.11.0-7.fc29 -> 4.11.1-4.fc30
+ xfsprogs.src: 4.17.0-3.fc29 -> 4.19.0-4.fc30
+ xmlsec1.src: 1.2.25-5.fc29 -> 1.2.27-2.fc30
+ xorg-x11-drv-ati.src: 18.0.1-2.fc29 -> 19.0.1-1.fc30
+ xorg-x11-drv-libinput.src: 0.28.0-2.fc29 -> 0.28.2-1.fc30
+ xorg-x11-server.src: 1.20.1-4.fc29 -> 1.20.4-3.fc30
+ yelp.src: 3.30.0-1.fc29 -> 3.32.1-1.fc30
+ yelp-xsl.src: 3.30.1-1.fc29 -> 3.32.1-1.fc30
++ zchunk.src  1.1.1-3.fc30
+ zenity.src: 3.30.0-1.fc29 -> 3.32.0-1.fc30
+ zram.src: 0.2-1.fc29 -> 0.3-1.fc30
+ zstd.src: 1.3.6-1.fc29 -> 1.3.8-2.fc30
+
+Summary
+Updated: 484
+Added: 70
+Deleted: 53
+Arch changed: 0
+Total packages: 1672 -> 1689
 ```
 
 ## Builds
diff --git a/TODO b/TODO
--- a/TODO
+++ b/TODO
@@ -1,4 +1,3 @@
 - refactor to library
 - compare with installed packages
-- summary (total added, removed, updated)
 - deb trees?
diff --git a/pkgtreediff.cabal b/pkgtreediff.cabal
--- a/pkgtreediff.cabal
+++ b/pkgtreediff.cabal
@@ -1,6 +1,6 @@
 cabal-version:       1.18
 name:                pkgtreediff
-version:             0.2.1
+version:             0.3
 synopsis:            Package tree diff tool
 description:         Tool for comparing RPM package files in OS dist trees.
 homepage:            https://github.com/juhp/pkgtreediff
@@ -30,7 +30,8 @@
                      , base < 5
                      , directory >= 1.2.5.0
                      , filepath
-                     , http-directory >= 0.1.3
+                     , Glob
+                     , http-directory >= 0.1.4
                      , simple-cmd >= 0.1.4
                      , simple-cmd-args
                      , text