From 0125a130fb3352ecd435b3f9f8e880a4f60a5c4c Mon Sep 17 00:00:00 2001
From: Lukas Atkinson <amon@cpan.org>
Date: Fri, 30 Dec 2016 00:39:19 +0100
Subject: [PATCH] re-enable HTML reports under Python3

In commit 1cc987a23, the `commonpath()` function was added, which quite
sensibly tries to figure out real path names. Unfortunately, it uses
`iterools.izip()` which is not available under Python3. Instead, that
functionality is now provided by the `zip()` builtin.

We therefore define an `izip()` function as an alias for
`itertools.izip()` if that is available, or else use `zip()`.

Since `commonpath()` is used in HTML reports, it was previously
impossible to create HTML reports with GCOVR under Python3.
To prevent such problems in the future, the existing HTML tests should
be updated and enabled.
---
 scripts/gcovr | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/scripts/gcovr b/scripts/gcovr
index a7b733e..000d0b7 100755
--- a/scripts/gcovr
+++ b/scripts/gcovr
@@ -55,6 +55,12 @@ try:
 except NameError:
     xrange = range
 
+# In Python3, zip is equivalent to izip
+try:
+    izip = itertools.izip
+except AttributeError:
+    izip = zip
+
 medium_coverage = 75.0
 high_coverage = 90.0
 low_color = "LightPink"
@@ -410,7 +416,7 @@ def commonpath( files ):
         path = os.path.realpath(f)
         dirs = path.split( os.path.sep )
         common = []
-        for a, b in itertools.izip( dirs, common_dirs ):
+        for a, b in izip( dirs, common_dirs ):
             if a == b:
                 common.append( a )
             elif common: