* pisi will fallback to defined url/path in the pisi.conf if somehow the source archives

url can not be reached.

pisi/configfile.py

@@ -31,6 +31,7 @@
 #buildno=True     # necessary for generating build nos
 #buildhelper = None / ccache / icecream
 #compressionlevel = 7
+#fallback = "ftp://ftp.pardus.org.tr/pub/pisi/source"
 #
 #[directories]
 #lib_dir = /var/lib/pisi
@@ -75,6 +76,7 @@ class BuildDefaults:
     buildno = False
     buildhelper = None
     compressionlevel = 7
+    fallback = "ftp://ftp.pardus.org.tr/pub/pisi/source"
 
 class DirectoriesDefaults:
     "Default values for [directories] section"

pisi/sourcearchive.py

@@ -14,7 +14,7 @@
 
 # python standard library
 
-from os.path import join
+from os.path import join, basename
 from os import access, R_OK
 
 import gettext
@@ -47,7 +47,15 @@ class SourceArchive:
                 progress = ctx.ui.Progress
             else:
                 progress = None
-            fetch_url(self.url, ctx.config.archives_dir(), progress)
+            try:
+                fetch_url(self.url, ctx.config.archives_dir(), progress)
+            except pisi.fetcher.FetchError:
+                # if archive can not be reached from the url, try the fallback 
+                # address.
+                if ctx.config.values.build.fallback:
+                    archive = basename(self.url.get_uri())
+                    src = join(ctx.config.values.build.fallback, archive)
+                    fetch_url(src, ctx.config.archives_dir(), progress)
 
     def is_cached(self, interactive=True):
         if not access(self.archiveFile, R_OK):