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

match: use '' instead of '.' for root directory (API)...

match: use '' instead of '.' for root directory (API) I think '' is generally a better value for the root directory than '.' is. For example, os.path.join('', 'foo') => 'foo', while os.path.join('.', 'foo') => './foo'. This patch mostly makes it so we use '' internally in match.py. However, it also affects the API in visitdir(), visitchildrenset() and files(). The two former now also accept '' as input. I've updated the callers of these methods. I've also added a deprecation warning for passing '.' (for external callers). The only caller I could find that was affected by files() returning '' instead of '.' was in dirstate.walk(). I've updated that. The next few patches show some workarounds we can remove by using '' instead of '.'. Differential Revision: https://phab.mercurial-scm.org/D6401

Yuya Nishihara - - Load All Authors

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      from __future__ import absolute_import

      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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				from __future__ import absolute_import

				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()