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#include "cache.h"
#include "submodule.h"
#include "dir.h"
#include "diff.h"
#include "commit.h"
#include "revision.h"
#include "run-command.h"
static int add_submodule_odb(const char *path)
{
struct strbuf objects_directory = STRBUF_INIT;
struct alternate_object_database *alt_odb;
strbuf_addf(&objects_directory, "%s/.git/objects/", path);
if (!is_directory(objects_directory.buf))
return -1;
/* avoid adding it twice */
for (alt_odb = alt_odb_list; alt_odb; alt_odb = alt_odb->next)
if (alt_odb->name - alt_odb->base == objects_directory.len &&
!strncmp(alt_odb->base, objects_directory.buf,
objects_directory.len))
return 0;
alt_odb = xmalloc(objects_directory.len + 42 + sizeof(*alt_odb));
alt_odb->next = alt_odb_list;
strcpy(alt_odb->base, objects_directory.buf);
alt_odb->name = alt_odb->base + objects_directory.len;
alt_odb->name[2] = '/';
alt_odb->name[40] = '\0';
alt_odb->name[41] = '\0';
alt_odb_list = alt_odb;
prepare_alt_odb();
return 0;
}
void show_submodule_summary(FILE *f, const char *path,
unsigned char one[20], unsigned char two[20],
const char *del, const char *add, const char *reset)
{
struct rev_info rev;
struct commit *commit, *left = left, *right = right;
struct commit_list *merge_bases, *list;
const char *message = NULL;
struct strbuf sb = STRBUF_INIT;
static const char *format = " %m %s";
int fast_forward = 0, fast_backward = 0;
if (is_null_sha1(two))
message = "(submodule deleted)";
else if (add_submodule_odb(path))
message = "(not checked out)";
else if (is_null_sha1(one))
message = "(new submodule)";
else if (!(left = lookup_commit_reference(one)) ||
!(right = lookup_commit_reference(two)))
message = "(commits not present)";
if (!message) {
init_revisions(&rev, NULL);
setup_revisions(0, NULL, &rev, NULL);
rev.left_right = 1;
rev.first_parent_only = 1;
left->object.flags |= SYMMETRIC_LEFT;
add_pending_object(&rev, &left->object, path);
add_pending_object(&rev, &right->object, path);
merge_bases = get_merge_bases(left, right, 1);
if (merge_bases) {
if (merge_bases->item == left)
fast_forward = 1;
else if (merge_bases->item == right)
fast_backward = 1;
}
for (list = merge_bases; list; list = list->next) {
list->item->object.flags |= UNINTERESTING;
add_pending_object(&rev, &list->item->object,
sha1_to_hex(list->item->object.sha1));
}
if (prepare_revision_walk(&rev))
message = "(revision walker failed)";
}
strbuf_addf(&sb, "Submodule %s %s..", path,
find_unique_abbrev(one, DEFAULT_ABBREV));
if (!fast_backward && !fast_forward)
strbuf_addch(&sb, '.');
strbuf_addf(&sb, "%s", find_unique_abbrev(two, DEFAULT_ABBREV));
if (message)
strbuf_addf(&sb, " %s\n", message);
else
strbuf_addf(&sb, "%s:\n", fast_backward ? " (rewind)" : "");
fwrite(sb.buf, sb.len, 1, f);
if (!message) {
while ((commit = get_revision(&rev))) {
struct pretty_print_context ctx = {0};
ctx.date_mode = rev.date_mode;
strbuf_setlen(&sb, 0);
if (commit->object.flags & SYMMETRIC_LEFT) {
if (del)
strbuf_addstr(&sb, del);
}
else if (add)
strbuf_addstr(&sb, add);
format_commit_message(commit, format, &sb, &ctx);
if (reset)
strbuf_addstr(&sb, reset);
strbuf_addch(&sb, '\n');
fprintf(f, "%s", sb.buf);
}
clear_commit_marks(left, ~0);
clear_commit_marks(right, ~0);
}
strbuf_release(&sb);
}
int is_submodule_modified(const char *path)
{
int len;
struct child_process cp;
const char *argv[] = {
"status",
"--porcelain",
NULL,
};
char *env[3];
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "%s/.git/", path);
if (!is_directory(buf.buf)) {
strbuf_release(&buf);
/* The submodule is not checked out, so it is not modified */
return 0;
}
strbuf_reset(&buf);
strbuf_addf(&buf, "GIT_WORK_TREE=%s", path);
env[0] = strbuf_detach(&buf, NULL);
strbuf_addf(&buf, "GIT_DIR=%s/.git", path);
env[1] = strbuf_detach(&buf, NULL);
env[2] = NULL;
memset(&cp, 0, sizeof(cp));
cp.argv = argv;
cp.env = (const char *const *)env;
cp.git_cmd = 1;
cp.no_stdin = 1;
cp.out = -1;
if (start_command(&cp))
die("Could not run git status --porcelain");
len = strbuf_read(&buf, cp.out, 1024);
close(cp.out);
if (finish_command(&cp))
die("git status --porcelain failed");
free(env[0]);
free(env[1]);
strbuf_release(&buf);
return len != 0;
}
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