From 76db75d9631fc90a25f58afa39b72822e792e724 Mon Sep 17 00:00:00 2001
From: Frej Drejhammar <frej.drejhammar@gmail.com>
Date: Sat, 14 Feb 2026 14:35:48 +0100
Subject: [PATCH] Support Mercurial 7.2

In Mercurial 7.2 the iteritems() method of the branchmap has been
removed. Switch to iterating over the branches and then fetching heads
by the branchheads() method. In 7.2, a call to
mercurial.initialization.init() is also needed to process a repo using
the largefiles extension.

Thanks to Michael Cho (@cho-m) for suggesting the initialization fix.

Closes #348

Co-developed-by: Michael Cho <michael@michaelcho.dev>
---
 hg-fast-export.py | 4 +++-
 hg2git.py         | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/hg-fast-export.py b/hg-fast-export.py
index c5f6f5d..bf8c310 100755
--- a/hg-fast-export.py
+++ b/hg-fast-export.py
@@ -488,7 +488,9 @@ def branchtip(repo, heads):
 
 def verify_heads(ui,repo,cache,force,ignore_unnamed_heads,branchesmap):
   branches={}
-  for bn, heads in repo.branchmap().iteritems():
+
+  for bn in repo.branchmap():
+    heads = repo.branchmap().branchheads(bn)
     branches[bn] = branchtip(repo, heads)
   l=[(-repo.changelog.rev(n), n, t) for t, n in branches.items()]
   l.sort()
diff --git a/hg2git.py b/hg2git.py
index 73b475c..0bc74ff 100755
--- a/hg2git.py
+++ b/hg2git.py
@@ -30,6 +30,14 @@ def set_origin_name(name):
   origin_name = name.encode('utf8')
 
 def setup_repo(url):
+  try:
+    # Mercurial >= 7.2 requires explicit initialization for largefile
+    # support to work.
+    from mercurial import initialization
+    initialization.init()
+  except ImportError:
+    pass
+
   try:
     myui=ui.ui(interactive=False)
   except TypeError: