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combine-diff: Record diff status a bit more faithfully 

This shows "new file mode XXXX" and "deleted file mode XXXX"
lines like two-way diff-patch output does, by checking the
status from each parent.

The diff-raw output for combined diff is made a bit uglier by
showing diff status letters with each parent.  While most of the
case you would see "MM" in the output, an Evil Merge that
touches a path that was added by inheriting from one parent is
possible and it would be shown like these:

    $ git-diff-tree --abbrev -c HEAD
    2d7ca89675eb8888b0b88a91102f096d4471f09f
    ::000000 000000 100644 0000000... 0000000... 31dd686... AA	b
    ::000000 100644 100644 0000000... 6c884ae... c6d4fa8... AM	d
    ::100644 100644 100644 4f7cbe7... f8c295c... 19d5d80... RR	e

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-02-10 02:30:52 -08:00
parent 297a1aadbe
commit d416df8869
2 changed files with 26 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
combine-diff.c
View File

@ -39,6 +39,7 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
p->mode = q->queue[i]->two->mode;
memcpy(p->parent[n].sha1, q->queue[i]->one->sha1, 20);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
*tail = p;
tail = &p->next;
}
@ -62,6 +63,7 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
memcpy(p->parent[n].sha1,
q->queue[i]->one->sha1, 20);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
break;
}
}
@ -739,12 +741,25 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
printf("..%s\n", abb);
if (mode_differs) {
printf("mode ");
for (i = 0; i < num_parent; i++) {
printf("%s%06o", i ? "," : "",
elem->parent[i].mode);
int added = !!elem->mode;
for (i = 0; added && i < num_parent; i++)
if (elem->parent[i].status !=
DIFF_STATUS_ADDED)
added = 0;
if (added)
printf("new file mode %06o", elem->mode);
else {
if (!elem->mode)
printf("deleted file ");
printf("mode ");
for (i = 0; i < num_parent; i++) {
printf("%s%06o", i ? "," : "",
elem->parent[i].mode);
}
if (elem->mode)
printf("..%06o", elem->mode);
}
printf("..%06o\n", elem->mode);
putchar('\n');
}
dump_sline(sline, cnt, num_parent);
}
@ -811,8 +826,11 @@ static void show_raw_diff(struct combine_diff_path *p, int num_parent, const cha
}
if (opt->output_format == DIFF_FORMAT_RAW ||
opt->output_format == DIFF_FORMAT_NAME_STATUS)
printf("%c%c", mod_type, inter_name_termination);
opt->output_format == DIFF_FORMAT_NAME_STATUS) {
for (i = 0; i < num_parent; i++)
putchar(p->parent[i].status);
putchar(inter_name_termination);
}
if (line_termination) {
if (quote_c_style(p->path, NULL, NULL, 0))

1
diff.h
View File

@ -66,6 +66,7 @@ struct combine_diff_path {
unsigned int mode;
unsigned char sha1[20];
struct combine_diff_parent {
char status;
unsigned int mode;
unsigned char sha1[20];
} parent[FLEX_ARRAY];