setup_bdiff_cffi.py

contrib: check reference to old selenic.com domain

Now, all URL in Mercurial source tree should refer mercurial-scm.org
domain instead of selenic.com.

*.po files are ignored in this patch, because they might contain
msgid/msgstr coming from old source files.

This ignorance seems safe enough, because such msgstr should be
ignored at runtime, because:

  - msgid corresponded to it should be invalid, or
  - msgstr itself should be marked as fuzzy at synchronized to recent hg.pot

If any additional examination for *.po files is needed in the future,
let i18n/check-translation.py achieve such examination.

BTW, some binary files (e.g. *.png) are meaningless for checking
reference to old domain in this patch, but aren't ignored like as *.po
files, because excluding multiple suffixes is difficult for regexp
matching.

from __future__ import absolute_import

import cffi
import os

ffi = cffi.FFI()
ffi.set_source("_bdiff_cffi",
    open(os.path.join(os.path.join(os.path.dirname(__file__), 'mercurial'),
        'bdiff.c')).read(), include_dirs=['mercurial'])
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()