diff -r ef103c96ed33 -r c06f0ef9a5ba contrib/fuzz/revlog_corpus.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/fuzz/revlog_corpus.py	Wed Dec 19 20:26:53 2018 -0500
@@ -0,0 +1,28 @@
+from __future__ import absolute_import, print_function
+
+import argparse
+import os
+import zipfile
+
+ap = argparse.ArgumentParser()
+ap.add_argument("out", metavar="some.zip", type=str, nargs=1)
+args = ap.parse_args()
+
+reporoot = os.path.normpath(os.path.join(os.path.dirname(__file__),
+                                         '..', '..'))
+# typically a standalone index
+changelog = os.path.join(reporoot, '.hg', 'store', '00changelog.i')
+# an inline revlog with only a few revisions
+contributing = os.path.join(
+    reporoot, '.hg', 'store', 'data', 'contrib', 'fuzz', 'mpatch.cc.i')
+
+print(changelog, os.path.exists(changelog))
+print(contributing, os.path.exists(contributing))
+
+with zipfile.ZipFile(args.out[0], "w", zipfile.ZIP_STORED) as zf:
+    if os.path.exists(changelog):
+        with open(changelog) as f:
+            zf.writestr("00changelog.i", f.read())
+    if os.path.exists(contributing):
+        with open(contributing) as f:
+            zf.writestr("contributing.i", f.read())