upstream/mercurial-mirror Files · mercurial/cffi/mpatchbuild.py

utils: imp module is removed in Python 3.12 - get is_frozen() from _imp...

utils: imp module is removed in Python 3.12 - get is_frozen() from _imp imp has been deprecated for a long time, and has finally been removed in Python 3.12 . The successor importlib is using the same internal _imp module as imp, but doesn't expose it's is_frozen. Using the internal function directly seems like the cleanest solution. Another alternative to imp.is_frozen("__main__") is sys.modules['__main__'].__spec__.origin == 'frozen' but that seems even more internal and fragile.

Gregory Szorc - - Load All Authors

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             mpatchbuild.py
        
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      import cffi

      import os

      ffi = cffi.FFI()

      mpatch_c = os.path.join(

          os.path.join(os.path.dirname(__file__), '..', 'mpatch.c')

      )

      with open(mpatch_c) as f:

          ffi.set_source(

              "mercurial.cffi._mpatch", f.read(), include_dirs=["mercurial"]

          )

      ffi.cdef(

          """

      struct mpatch_frag {

             int start, end, len;

             const char *data;

      };

      struct mpatch_flist {

             struct mpatch_frag *base, *head, *tail;

      };

      extern "Python" struct mpatch_flist* cffi_get_next_item(void*, ssize_t);

      int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist** res);

      ssize_t mpatch_calcsize(size_t len, struct mpatch_flist *l);

      void mpatch_lfree(struct mpatch_flist *a);

      static int mpatch_apply(char *buf, const char *orig, size_t len,

                              struct mpatch_flist *l);

      struct mpatch_flist *mpatch_fold(void *bins,

                             struct mpatch_flist* (*get_next_item)(void*, ssize_t),

                             ssize_t start, ssize_t end);

      """

      )

      if __name__ == '__main__':

          ffi.compile()

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				import cffi
				import os

				ffi = cffi.FFI()
				mpatch_c = os.path.join(
				os.path.join(os.path.dirname(__file__), '..', 'mpatch.c')
				)
				with open(mpatch_c) as f:
				ffi.set_source(
				"mercurial.cffi._mpatch", f.read(), include_dirs=["mercurial"]
				)
				ffi.cdef(
				"""

				struct mpatch_frag {
				int start, end, len;
				const char *data;
				};

				struct mpatch_flist {
				struct mpatch_frag base, head, *tail;
				};

				extern "Python" struct mpatch_flist* cffi_get_next_item(void*, ssize_t);

				int mpatch_decode(const char bin, ssize_t len, struct mpatch_flist* res);
				ssize_t mpatch_calcsize(size_t len, struct mpatch_flist *l);
				void mpatch_lfree(struct mpatch_flist *a);
				static int mpatch_apply(char buf, const char orig, size_t len,
				struct mpatch_flist *l);
				struct mpatch_flist mpatch_fold(void bins,
				struct mpatch_flist* (get_next_item)(void, ssize_t),
				ssize_t start, ssize_t end);
				"""
				)

				if __name__ == '__main__':
				ffi.compile()