interdiff.con commit format-patch: add --interdiff option to embed diff in cover letter (126facf)
   1#include "cache.h"
   2#include "commit.h"
   3#include "revision.h"
   4#include "interdiff.h"
   5
   6void show_interdiff(struct rev_info *rev)
   7{
   8        struct diff_options opts;
   9
  10        memcpy(&opts, &rev->diffopt, sizeof(opts));
  11        opts.output_format = DIFF_FORMAT_PATCH;
  12        diff_setup_done(&opts);
  13
  14        diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts);
  15        diffcore_std(&opts);
  16        diff_flush(&opts);
  17}