git/interdiff.c
Eric Sunshine 3b026417ea interdiff: teach show_interdiff() to indent interdiff
A future change will allow "git format-patch --interdiff=<prev> -1" to
insert an interdiff into the commentary section of the lone patch of a
1-patch series. However, to prevent the inserted interdiff from
confusing git-am, as well as human readers, it needs to be indented.
Therefore, teach show_interdiff() how to indent.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-23 12:50:06 -07:00

29 lines
660 B
C

#include "cache.h"
#include "commit.h"
#include "revision.h"
#include "interdiff.h"
static struct strbuf *idiff_prefix_cb(struct diff_options *opt, void *data)
{
return data;
}
void show_interdiff(struct rev_info *rev, int indent)
{
struct diff_options opts;
struct strbuf prefix = STRBUF_INIT;
memcpy(&opts, &rev->diffopt, sizeof(opts));
opts.output_format = DIFF_FORMAT_PATCH;
opts.output_prefix = idiff_prefix_cb;
strbuf_addchars(&prefix, ' ', indent);
opts.output_prefix_data = &prefix;
diff_setup_done(&opts);
diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts);
diffcore_std(&opts);
diff_flush(&opts);
strbuf_release(&prefix);
}