From c13ce26768e760908078244e251c7b3c19b26a8f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mattias=20Andr=C3=A9e?= <maandree@operamail.com>
Date: Tue, 21 Aug 2012 19:35:55 +0200
Subject: [PATCH] automatic cache clean

---
 configure |  1 -
 ponysay   | 26 +++++++++++++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 6cde35b4..6e1c9632 100755
--- a/configure
+++ b/configure
@@ -239,7 +239,6 @@ function makeMakefile()
     echo
     
     echo 'install-cache:'
-    echo -en '\t' ; echo 'if [ -d "/var/cache/ponysay" ]; then  rm -r "/var/cache/ponysay"; fi'
     echo -en '\t' ; echo 'mkdir -p "$(DESTDIR)/var/cache/ponysay/"'
     echo -en '\t' ; echo 'chmod 777 "$(DESTDIR)/var/cache/ponysay/"'
     echo
diff --git a/ponysay b/ponysay
index fedaab6b..7eb6dd5c 100755
--- a/ponysay
+++ b/ponysay
@@ -24,7 +24,7 @@ from subprocess import Popen, PIPE
 '''
 The version of ponysay
 '''
-VERSION = '2.2'
+VERSION = '2.3'
 
 
 '''
@@ -533,6 +533,8 @@ class Ponysay():
         if not linuxvt:
             return pony
         
+        KMS_VERSION = '1'
+        
         env_kms = os.environ['PONYSAY_KMS_PALETTE'] if 'PONYSAY_KMS_PALETTE' in os.environ else None
         if env_kms is None:  env_kms = ''
         
@@ -554,6 +556,28 @@ class Ponysay():
             if not os.path.isdir(cachedir):
                 os.makedirs(cachedir)
         
+        newversion = False
+        if not os.path.isfile(cachedir + '/.version'):
+            newversion = True
+        else:
+            cachev = None
+            try:
+                cachev = open(cachedir + '/.version', 'r')
+                if ''.join(cachev.readlines()) == KMS_VERSION:
+                    newversion = True
+            finally:
+                if cachev is not None:
+                    cachev.close()
+        if newversion:
+            for cached in os.listdir(ponydir):
+                shutil.rmtree(cachedir + '/' + cached, False)
+            try:
+                cachev = open(cachedir + '/.version', 'w+')
+                cachev.write(KMS_VERSION)
+            finally:
+                if cachev is not None:
+                    cachev.close()
+        
         kmsponies = cachedir + '/kmsponies/' + palettefile
         kmspony = (kmsponies + pony).replace('//', '/')