From e76b37eee65f302f5218d4b18c278136f1cd627b Mon Sep 17 00:00:00 2001
From: Tomas Tomecek <ttomecek@redhat.com>
Date: Apr 27 2017 13:04:29 +0000
Subject: use f26 primarily, fallback to master


Signed-off-by: Tomas Tomecek <ttomecek@redhat.com>

---

diff --git a/modularity/module_deps_differ.py b/modularity/module_deps_differ.py
index a95dc36..53a2d9a 100755
--- a/modularity/module_deps_differ.py
+++ b/modularity/module_deps_differ.py
@@ -6,7 +6,8 @@ import re
 
 
 SUPPORTED_MODULES = ['perl', 'base-runtime', 'common-build-dependencies-bootstrap', 'common-build-dependencies']
-STREAM = 'master'
+FALLBACK_STREAM = 'master'
+STREAM = 'f26'
 REPO_F26 = "http://ftp.fi.muni.cz/pub/linux/fedora/linux/development/26/Everything/x86_64/os/"
 REPO_F26_SOURCE = "http://ftp.fi.muni.cz/pub/linux/fedora/linux/development/26/Everything/source/tree/"
 ARCH = 'x86_64'
@@ -15,9 +16,21 @@ ARCH = 'x86_64'
 # TODO: solve architecture! - as option?
 
 
+p = None
+
+
+def get_pdc_client():
+    """ cache PDCClient instance """
+    global p
+    if p is None:
+        p = PDCClient('https://pdc.fedoraproject.org/rest_api/v1/', develop=True, ssl_verify=True)
+    return p
+
+
 class ModuleDepsDiffer(object):
 
     def __init__(self, args):
+        self.p = get_pdc_client()
         self.repos = dict()
         self.repo_provides = dict()
         # TODO: get this from args
@@ -31,18 +44,23 @@ class ModuleDepsDiffer(object):
 
     def get_repo_urls(self):
         for repo in SUPPORTED_MODULES:
-            p = PDCClient('https://pdc.fedoraproject.org/rest_api/v1/', develop=True, ssl_verify=True)
-
             module_name = repo
             stream = STREAM
             repo_url_template = "https://kojipkgs.fedoraproject.org/repos/{}"
-            j = p['unreleasedvariants'](
+            j = self.p['unreleasedvariants'](
                 variant_name=module_name,
                 variant_type="module",
                 variant_version=stream,
                 active=True
             )
-            # TODO: get latest
+            if not j["results"]:
+                # fallback
+                j = self.p['unreleasedvariants'](
+                    variant_name=module_name,
+                    variant_type="module",
+                    variant_version=FALLBACK_STREAM,
+                    active=True
+                )
             latest = max(j["results"], key=lambda x:x['variant_release'])
             repo_url = repo_url_template.format(latest["koji_tag"])
             self.repos[repo] = str(repo_url + '/latest/' + ARCH)