cerbero: Need to rebuild pyvenv tools on Windows

Part-of: <https://gitlab.freedesktop.org/gstreamer/cerbero/-/merge_requests/1423>

1 files changed, 18 insertions, 0 deletions

diff --git a/cerbero/commands/cache.py b/cerbero/commands/cache.py
index b76d3552..1a764064 100644
--- a/cerbero/commands/cache.py
+++ b/cerbero/commands/cache.py
@@ -20,6 +20,7 @@ import os
 import sys
 import json
 import tempfile
+import pickle
 import shutil
 from hashlib import sha256
 
@@ -223,6 +224,21 @@ class FetchCache(BaseCache):
                         continue
                     self._change_lib_paths(object_file, old_path, new_path)
 
+    def mark_windows_build_tools_dirty(self, config):
+        """
+        On Windows, Python virtualenv writes out an executable for all
+        pip-installed Python programs, which need to be rebuilt for the current
+        prefix. Currently, this is just Meson in build-tools.
+        """
+        cache_file = os.path.join(config.home_dir, config.build_tools_cache)
+        with open(cache_file, 'rb+') as f:
+            p = pickle.load(f)
+            # Reset the recipe status
+            del p['meson']
+            f.seek(0)
+            f.truncate(0)
+            pickle.dump(p, f)
+
     def relocate_prefix(self, config, namespace):
         """
         We need to relocate pc files that weren't generated by meson and
@@ -240,6 +256,8 @@ class FetchCache(BaseCache):
         # Need to relocate RPATHs and names in binaries
         if config.platform == Platform.DARWIN:
             self.relocate_macos_build_tools(config, origin, dest)
+        elif config.platform == Platform.WINDOWS:
+            self.mark_windows_build_tools_dirty(config)
 
     async def fetch_dep(self, config, dep, namespace):
         is_ci = 'CI' in os.environ