Make simdjs tests redownload on a revision change.

test/simdjs/testcfg.py

Index: test/simdjs/testcfg.py
diff --git a/test/simdjs/testcfg.py b/test/simdjs/testcfg.py
index c0390afd65ea2f38da8f4bc1191863bcd38bd91e..29012fcc67b80ef8d128527f260f3ed3c4002d1b 100644
--- a/test/simdjs/testcfg.py
+++ b/test/simdjs/testcfg.py
@@ -65,10 +65,30 @@ class SimdJsTestSuite(testsuite.TestSuite):
   def DownloadData(self):
     revision = SIMDJS_ARCHIVE_REVISION
     archive_url = SIMDJS_URL % revision
+
     archive_name = os.path.join(
         self.root, "ecmascript_simd-%s.tar.gz" % revision)
     directory_name = os.path.join(self.root, "data")
     directory_old_name = os.path.join(self.root, "data.old")
+    versionfile = os.path.join(self.root, "CHECKED_OUT_VERSION")
+
+    checked_out_version = None
+    checked_out_url = None
+    checked_out_revision = None
+    if os.path.exists(versionfile):
+      with open(versionfile) as f:
+        try:
+          (checked_out_version,
+           checked_out_url,
+           checked_out_revision) = f.read().splitlines()
+        except ValueError:
+          pass
+    if (checked_out_version != SIMDJS_ARCHIVE_MD5 or
+        checked_out_url != archive_url or
+        checked_out_revision != revision):

[Michael Achenbach, 2015/07/21 06:58:17]

Please add a print statement here that logs what's happening. Helps debugging
later.

[bradn, 2015/07/21 18:37:19]

Done.

+      if os.path.exists(archive_name):
+        os.remove(archive_name)
+
     if not os.path.exists(archive_name):
       print "Downloading test data from %s ..." % archive_url
       utils.URLRetrieve(archive_url, archive_name)
@@ -96,6 +116,11 @@ class SimdJsTestSuite(testsuite.TestSuite):
       os.rename(os.path.join(self.root, "ecmascript_simd-%s" % revision),
                 directory_name)
 
+      with open(versionfile, "w") as f:
+        f.write(SIMDJS_ARCHIVE_MD5 + '\n')
+        f.write(archive_url + '\n')
+        f.write(revision + '\n')
+
 
 def GetSuite(name, root):
   return SimdJsTestSuite(name, root)