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git-diff-tree --stdin: show all parents.

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git-diff-tree --stdin ignored second and subsequent parents when
fed git-rev-list --parents output.  Update diff_tree_commit()
function to take a commit object, and pass a fabricated commit
object after grafting the fake parents from diff_tree_stdin().

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-02-05 23:00:41 -08:00
parent e3c3a550d4
commit 45392a648d
1 changed files with 39 additions and 26 deletions
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65
diff-tree.c
View file

@ -100,23 +100,15 @@ static const char *generate_header(const unsigned char *commit_sha1,
return this_header;
}
static int diff_tree_commit(const unsigned char *commit_sha1)
static int diff_tree_commit(struct commit *commit)
{
struct commit *commit;
struct commit_list *parents;
char name[50];
unsigned char sha1[20];
unsigned const char *sha1 = commit->object.sha1;
sprintf(name, "%s^0", sha1_to_hex(commit_sha1));
if (get_sha1(name, sha1))
return -1;
name[40] = 0;
commit = lookup_commit(sha1);
/* Root commit? */
if (show_root_diff && !commit->parents) {
header = generate_header(sha1, NULL, commit);
diff_root_tree(commit_sha1, "");
diff_root_tree(sha1, "");
}
/* More than one parent? */
@ -133,7 +125,7 @@ static int diff_tree_commit(const unsigned char *commit_sha1)
for (parents = commit->parents; parents; parents = parents->next) {
struct commit *parent = parents->item;
header = generate_header(sha1, parent->object.sha1, commit);
diff_tree_sha1_top(parent->object.sha1, commit_sha1, "");
diff_tree_sha1_top(parent->object.sha1, sha1, "");
if (!header && verbose_header) {
header_prefix = "\ndiff-tree ";
/*
@ -145,28 +137,49 @@ static int diff_tree_commit(const unsigned char *commit_sha1)
return 0;
}
static int diff_tree_commit_sha1(const unsigned char *sha1)
{
struct commit *commit = lookup_commit_reference(sha1);
if (!commit)
return -1;
return diff_tree_commit(commit);
}
static int diff_tree_stdin(char *line)
{
int len = strlen(line);
unsigned char commit[20], parent[20];
static char this_header[1000];
int abbrev = diff_options.abbrev;
unsigned char sha1[20];
struct commit *commit;
if (!len || line[len-1] != '\n')
return -1;
line[len-1] = 0;
if (get_sha1_hex(line, commit))
if (get_sha1_hex(line, sha1))
return -1;
if (isspace(line[40]) && !get_sha1_hex(line+41, parent)) {
line[40] = 0;
line[81] = 0;
sprintf(this_header, "%s (from %s)\n",
diff_unique_abbrev(commit, abbrev),
diff_unique_abbrev(parent, abbrev));
header = this_header;
return diff_tree_sha1_top(parent, commit, "");
commit = lookup_commit(sha1);
if (!commit || parse_commit(commit))
return -1;
if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) {
/* Graft the fake parents locally to the commit */
int pos = 41;
struct commit_list **pptr, *parents;
/* Free the real parent list */
for (parents = commit->parents; parents; ) {
struct commit_list *tmp = parents->next;
free(parents);
parents = tmp;
}
commit->parents = NULL;
pptr = &(commit->parents);
while (line[pos] && !get_sha1_hex(line + pos, sha1)) {
struct commit *parent = lookup_commit(sha1);
if (parent) {
pptr = &commit_list_insert(parent, pptr)->next;
}
pos += 41;
}
}
line[40] = 0;
return diff_tree_commit(commit);
}
@ -288,7 +301,7 @@ int main(int argc, const char **argv)
usage(diff_tree_usage);
break;
case 1:
diff_tree_commit(sha1[0]);
diff_tree_commit_sha1(sha1[0]);
break;
case 2:
diff_tree_sha1_top(sha1[0], sha1[1], "");