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

snapshot: consider all snapshots in the parents' chains...

snapshot: consider all snapshots in the parents' chains There are no reasons to only consider full snapshot as a possible base for an intermediate snapshot. Now that the basic principles have been set, we can start adding more levels of snapshots. We now consider all snapshots in the parent's chains (full or intermediate). This creates a chain of intermediate snapshots, each smaller than the previous one. # Effect On The Test Repository In the test repository, we can see a decrease in the revlog size and slightly shorter delta chain. However, that approach creates snapshots more frequently, increasing the risk of ending into problematic cases in very branchy repositories (not triggered by the test repository). The next changesets will remove that risk by adding logic that increases deltas reuse.

Yuya Nishihara - - Load All Authors

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        Yuya Nishihara
    
cffi: rename build scripts...

              r32505
            
      from __future__ import absolute_import

      import cffi

      import os

      ffi = cffi.FFI()

        Augie Fackler
    
cleanup: fix some latent open(path).read() et al calls we previously missed...

              r36966
            
      with open(os.path.join(os.path.join(os.path.dirname(__file__), '..'),

                             'bdiff.c')) as f:

          ffi.set_source("mercurial.cffi._bdiff",

                         f.read(), include_dirs=['mercurial'])

        Yuya Nishihara
    
cffi: rename build scripts...

              r32505
            
      ffi.cdef("""

      struct bdiff_line {

          int hash, n, e;

          ssize_t len;

          const char *l;

      };

      struct bdiff_hunk;

      struct bdiff_hunk {

          int a1, a2, b1, b2;

          struct bdiff_hunk *next;

      };

      int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);

      int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,

          struct bdiff_hunk *base);

      void bdiff_freehunks(struct bdiff_hunk *l);

      void free(void*);

      """)

      if __name__ == '__main__':

          ffi.compile()

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Yuya Nishihara cffi: rename build scripts...	r32505	from __future__ import absolute_import

		import cffi
		import os

		ffi = cffi.FFI()
Augie Fackler cleanup: fix some latent open(path).read() et al calls we previously missed...	r36966	with open(os.path.join(os.path.join(os.path.dirname(__file__), '..'),
		'bdiff.c')) as f:
		ffi.set_source("mercurial.cffi._bdiff",
		f.read(), include_dirs=['mercurial'])
Yuya Nishihara cffi: rename build scripts...	r32505	ffi.cdef("""
		struct bdiff_line {
		int hash, n, e;
		ssize_t len;
		const char *l;
		};

		struct bdiff_hunk;
		struct bdiff_hunk {
		int a1, a2, b1, b2;
		struct bdiff_hunk *next;
		};

		int bdiff_splitlines(const char a, ssize_t len, struct bdiff_line *lr);
		int bdiff_diff(struct bdiff_line a, int an, struct bdiff_line b, int bn,
		struct bdiff_hunk *base);
		void bdiff_freehunks(struct bdiff_hunk *l);
		void free(void*);
		""")

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