From e1a9c3e91b60114d700d3324d6fb227a54e66266 Mon Sep 17 00:00:00 2001
From: Mark Nauwelaerts <mnauw@users.sourceforge.net>
Date: Sat, 3 May 2025 15:05:47 +0200
Subject: [PATCH] Update loading source file as module

---
 git-hg-helper | 20 ++++++++++++++++++--
 git-remote-hg | 26 ++++++++++++++++++++++----
 2 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/git-hg-helper b/git-hg-helper
index 94ee906..da28a6e 100755
--- a/git-hg-helper
+++ b/git-hg-helper
@@ -97,11 +97,27 @@ def debug(msg, *args):
 def log(msg, *args):
     logger.log(logging.LOG, msg, *args)
 
+# new style way to import a source file
+def _imp_load_source(module_name, file_path):
+    import importlib.util
+    loader = importlib.machinery.SourceFileLoader(module_name, file_path)
+    spec = importlib.util.spec_from_loader(module_name, loader)
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[module_name] = module
+    spec.loader.exec_module(module)
+    return module
+
 def import_sibling(mod, filename):
-    import imp
     mydir = os.path.dirname(__file__)
     sys.dont_write_bytecode = True
-    return imp.load_source(mod, os.path.join(mydir, filename))
+    vi = sys.version_info
+    ff = os.path.join(mydir, filename)
+    if vi.major >= 3 and vi.minor >= 5:
+        return _imp_load_source(mod, ff)
+    else:
+        import imp
+        return imp.load_source(mod, ff)
+
 
 class GitHgRepo:
 
diff --git a/git-remote-hg b/git-remote-hg
index bed28c6..68e0601 100755
--- a/git-remote-hg
+++ b/git-remote-hg
@@ -122,6 +122,27 @@ else:
         urlparse = staticmethod(_urlparse)
         urljoin = staticmethod(_urljoin)
 
+# new style way to import a source file
+def _imp_load_source(module_name, file_path):
+    import importlib.util
+    loader = importlib.machinery.SourceFileLoader(module_name, file_path)
+    spec = importlib.util.spec_from_loader(module_name, loader)
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[module_name] = module
+    spec.loader.exec_module(module)
+    return module
+
+def import_sibling(mod, filename):
+    mydir = os.path.dirname(__file__)
+    sys.dont_write_bytecode = True
+    vi = sys.version_info
+    ff = os.path.join(mydir, filename)
+    if vi.major >= 3 and vi.minor >= 5:
+        return _imp_load_source(mod, ff)
+    else:
+        import imp
+        return imp.load_source(mod, ff)
+
 #
 # If you want to see Mercurial revisions as Git commit notes:
 # git config core.notesRef refs/notes/hg
@@ -1609,10 +1630,7 @@ def do_push_refspec(parser, refspec, revs):
             tmpfastexport = open(os.path.join(marksdir, b'git-fast-export-%d' % (os.getpid())), 'w+b')
             subprocess.check_call(cmd, stdin=None, stdout=tmpfastexport)
             try:
-                import imp
-                sys.dont_write_bytecode = True
-                ctx.hghelper = imp.load_source('hghelper', \
-                    os.path.join(os.path.dirname(__file__), 'git-hg-helper'))
+                ctx.hghelper = import_sibling('hghelper', 'git-hg-helper')
                 ctx.hghelper.init_git(gitdir)
                 ctx.gitmarks = ctx.hghelper.GitMarks(tmpmarks)
                 # let processing know it should not bother pushing if not requested