Add latest symlink

pyamo/cli.py

@@ -424,6 +424,9 @@ def find_versions(versions, page):
             version.savesources(addonpath)
             print(' ' + version.sourcefilename)
             version.extractsources(addonpath)
+
+        version.linklatest(addonpath)
+
     if args.run:
         print('Running applicaton for %s %s' % (review.slug, versions[-1].version))
         if not args.binary:

pyamo/review.py

@@ -13,6 +13,7 @@
 from zipfile import ZipFile, BadZipfile
 from urllib.parse import urlparse, urljoin, unquote
 from mozprofile import FirefoxProfile
+from cmp_version import cmp_version
 
 import lxml.html
 import magic
@@ -315,6 +316,16 @@ def extractsources(self, targetpath):
             traceback.print_exc()
             print("Could not extract sources due to above exception, skipping extraction")
 
+    def linklatest(self, targetpath):
+        dst = os.path.join(targetpath, "latest")
+        if os.path.islink(dst):
+            target = os.path.dirname(os.readlink(dst))
+            if cmp_version(target, self.version) > 0:
+                return
+            os.unlink(dst)
+
+        os.symlink(self.version + os.path.sep, dst)
+
 
 class AddonVersionFile:
     # pylint: disable=too-many-instance-attributes

setup.py

@@ -23,6 +23,7 @@
         'lxml',
         'mozrunner',
         'cssselect',
+        'cmp_version',
         'arghandler >=1.0.3',
         'pylzma',
         'pytz',