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branchmap: Add a test about writing branchmap and aborted transaction...
branchmap: Add a test about writing branchmap and aborted transaction It turn out that we update the branchmap on disk whenever we recompute it… including in a middle of a transaction. This means writing the new branchmap too early (the changeset are not visible yet) and worse… it mean writing branchmap for transaction we rollback. so we introduce a test to highlight the issue (and prevent it to regress in the future). Differential Revision: https://phab.mercurial-scm.org/D12126

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r44085:53607fd3 stable
r49524:6ed7ee9f stable
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mpatchbuild.py
40 lines | 1.0 KiB | text/x-python | PythonLexer
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()