/* An empty entry never compares same, not even to another empty entry */
static int same_entry(struct name_entry *a, struct name_entry *b)
{
return !is_null_oid(&a->oid) &&
!is_null_oid(&b->oid) &&
oideq(&a->oid, &b->oid) &&
a->mode == b->mode;
}
static void stuff_change(struct diff_options *opt,
unsigned old_mode, unsigned new_mode,
const struct object_id *old_oid,
const struct object_id *new_oid,
int old_oid_valid,
int new_oid_valid,
const char *old_path,
const char *new_path)
{
struct diff_filespec *one, *two;
if (!is_null_oid(old_oid) && !is_null_oid(new_oid) &&
!oidcmp(old_oid, new_oid) && (old_mode == new_mode))
return;
if (opt->flags.reverse_diff) {
SWAP(old_mode, new_mode);
SWAP(old_oid, new_oid);
SWAP(old_path, new_path);
}
if (opt->prefix &&
(strncmp(old_path, opt->prefix, opt->prefix_length) ||
strncmp(new_path, opt->prefix, opt->prefix_length)))
return;
one = alloc_filespec(old_path);
two = alloc_filespec(new_path);
fill_filespec(one, old_oid, old_oid_valid, old_mode);
fill_filespec(two, new_oid, new_oid_valid, new_mode);
diff_queue(&diff_queued_diff, one, two);
}
/**
* Given the current HEAD SHA1, the merge head returned from git-fetch and the
* fork point calculated by get_rebase_fork_point(), runs git-rebase with the
* appropriate arguments and returns its exit status.
*/
static int run_rebase(const struct object_id *curr_head,
const struct object_id *merge_head,
const struct object_id *fork_point)
{
int ret;
struct object_id oct_merge_base;
struct argv_array args = ARGV_ARRAY_INIT;
if (!get_octopus_merge_base(&oct_merge_base, curr_head, merge_head, fork_point))
if (!is_null_oid(fork_point) && oideq(&oct_merge_base, fork_point))
fork_point = NULL;
argv_array_push(&args, "rebase");
/* Shared options */
argv_push_verbosity(&args);
/* Options passed to git-rebase */
if (opt_rebase == REBASE_MERGES)
argv_array_push(&args, "--rebase-merges");
else if (opt_rebase == REBASE_PRESERVE)
argv_array_push(&args, "--preserve-merges");
else if (opt_rebase == REBASE_INTERACTIVE)
argv_array_push(&args, "--interactive");
if (opt_diffstat)
argv_array_push(&args, opt_diffstat);
argv_array_pushv(&args, opt_strategies.argv);
argv_array_pushv(&args, opt_strategy_opts.argv);
if (opt_gpg_sign)
argv_array_push(&args, opt_gpg_sign);
if (opt_autostash == 0)
argv_array_push(&args, "--no-autostash");
else if (opt_autostash == 1)
argv_array_push(&args, "--autostash");
if (opt_verify_signatures &&
!strcmp(opt_verify_signatures, "--verify-signatures"))
warning(_("ignoring --verify-signatures for rebase"));
argv_array_push(&args, "--onto");
argv_array_push(&args, oid_to_hex(merge_head));
if (fork_point && !is_null_oid(fork_point))
argv_array_push(&args, oid_to_hex(fork_point));
else
argv_array_push(&args, oid_to_hex(merge_head));
ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
return ret;
}
static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid)
{
/*
* We may or may not have the commit yet - if not, look it
* up using the supplied sha1.
*/
if (!commit) {
if (is_null_oid(oid))
return 0;
commit = lookup_commit_reference_gently(the_repository, oid,
1);
/* Not a commit -- keep it */
if (!commit)
return 0;
}
/* Reachable from the current ref? Don't prune. */
if (commit->object.flags & REACHABLE)
return 0;
if (cb->mark_list && cb->mark_limit) {
cb->mark_limit = 0; /* dig down to the root */
mark_reachable(cb);
}
return !(commit->object.flags & REACHABLE);
}
static void print_ok_ref_status(struct ref *ref, int porcelain, int summary_width)
{
if (ref->deletion)
print_ref_status('-', "[deleted]", ref, NULL, NULL,
porcelain, summary_width);
else if (is_null_oid(&ref->old_oid))
print_ref_status('*',
(starts_with(ref->name, "refs/tags/") ? "[new tag]" :
"[new branch]"),
ref, ref->peer_ref, NULL, porcelain, summary_width);
else {
struct strbuf quickref = STRBUF_INIT;
char type;
const char *msg;
strbuf_add_unique_abbrev(&quickref, &ref->old_oid,
DEFAULT_ABBREV);
if (ref->forced_update) {
strbuf_addstr(&quickref, "...");
type = '+';
msg = "forced update";
} else {
strbuf_addstr(&quickref, "..");
type = ' ';
msg = NULL;
}
strbuf_add_unique_abbrev(&quickref, &ref->new_oid,
DEFAULT_ABBREV);
print_ref_status(type, quickref.buf, ref, ref->peer_ref, msg,
porcelain, summary_width);
strbuf_release(&quickref);
}
}
/**
* Sets merge_base to the octopus merge base of curr_head, merge_head and
* fork_point. Returns 0 if a merge base is found, 1 otherwise.
*/
static int get_octopus_merge_base(struct object_id *merge_base,
const struct object_id *curr_head,
const struct object_id *merge_head,
const struct object_id *fork_point)
{
struct commit_list *revs = NULL, *result;
commit_list_insert(lookup_commit_reference(the_repository, curr_head),
&revs);
commit_list_insert(lookup_commit_reference(the_repository, merge_head),
&revs);
if (!is_null_oid(fork_point))
commit_list_insert(lookup_commit_reference(the_repository, fork_point),
&revs);
result = get_octopus_merge_bases(revs);
free_commit_list(revs);
reduce_heads_replace(&result);
if (!result)
return 1;
oidcpy(merge_base, &result->item->object.oid);
free_commit_list(result);
return 0;
}
static void get_default_heads(void)
{
if (head_points_at && !is_null_oid(&head_oid))
fsck_handle_ref("HEAD", &head_oid, 0, NULL);
for_each_rawref(fsck_handle_ref, NULL);
if (include_reflogs)
for_each_reflog(fsck_handle_reflog, NULL);
/*
* Not having any default heads isn't really fatal, but
* it does mean that "--unreachable" no longer makes any
* sense (since in this case everything will obviously
* be unreachable by definition.
*
* Showing dangling objects is valid, though (as those
* dangling objects are likely lost heads).
*
* So we just print a warning about it, and clear the
* "show_unreachable" flag.
*/
if (!default_refs) {
fprintf(stderr, "notice: No default references\n");
show_unreachable = 0;
}
}
static int fsck_head_link(void)
{
int null_is_error = 0;
if (verbose)
fprintf(stderr, "Checking HEAD link\n");
head_points_at = resolve_ref_unsafe("HEAD", 0, &head_oid, NULL);
if (!head_points_at) {
errors_found |= ERROR_REFS;
return error("Invalid HEAD");
}
if (!strcmp(head_points_at, "HEAD"))
/* detached HEAD */
null_is_error = 1;
else if (!starts_with(head_points_at, "refs/heads/")) {
errors_found |= ERROR_REFS;
return error("HEAD points to something strange (%s)",
head_points_at);
}
if (is_null_oid(&head_oid)) {
if (null_is_error) {
errors_found |= ERROR_REFS;
return error("HEAD: detached HEAD points at nothing");
}
fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
head_points_at + 11);
}
return 0;
}
/*
* Add the lines from the named object to list, with trailing
* newlines removed.
*/
static int string_list_add_note_lines(struct string_list *list,
const struct object_id *oid)
{
char *data;
unsigned long len;
enum object_type t;
if (is_null_oid(oid))
return 0;
/* read_sha1_file NUL-terminates */
data = read_object_file(oid, &t, &len);
if (t != OBJ_BLOB || !data || !len) {
free(data);
return t != OBJ_BLOB || !data;
}
/*
* If the last line of the file is EOL-terminated, this will
* add an empty string to the list. But it will be removed
* later, along with any empty strings that came from empty
* lines within the file.
*/
string_list_split(list, data, '\n', -1);
free(data);
return 0;
}
/*
* Determine whether we can simply reuse the file in the worktree.
*/
static int use_wt_file(const char *workdir, const char *name,
struct object_id *oid)
{
struct strbuf buf = STRBUF_INIT;
struct stat st;
int use = 0;
strbuf_addstr(&buf, workdir);
add_path(&buf, buf.len, name);
if (!lstat(buf.buf, &st) && !S_ISLNK(st.st_mode)) {
struct object_id wt_oid;
int fd = open(buf.buf, O_RDONLY);
if (fd >= 0 &&
!index_fd(wt_oid.hash, fd, &st, OBJ_BLOB, name, 0)) {
if (is_null_oid(oid)) {
oidcpy(oid, &wt_oid);
use = 1;
} else if (!oidcmp(oid, &wt_oid))
use = 1;
}
}
strbuf_release(&buf);
return use;
}
static void update_index_from_diff(struct diff_queue_struct *q,
struct diff_options *opt, void *data)
{
int i;
int intent_to_add = *(int *)data;
for (i = 0; i < q->nr; i++) {
struct diff_filespec *one = q->queue[i]->one;
int is_missing = !(one->mode && !is_null_oid(&one->oid));
struct cache_entry *ce;
if (is_missing && !intent_to_add) {
remove_file_from_cache(one->path);
continue;
}
ce = make_cache_entry(one->mode, one->oid.hash, one->path,
0, 0);
if (!ce)
die(_("make_cache_entry failed for path '%s'"),
one->path);
if (is_missing) {
ce->ce_flags |= CE_INTENT_TO_ADD;
set_object_name_for_intent_to_add_entry(ce);
}
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
}
}
int transport_fetch_refs(struct transport *transport, struct ref *refs)
{
int rc;
int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
struct ref **heads = NULL;
struct ref *rm;
for (rm = refs; rm; rm = rm->next) {
nr_refs++;
if (rm->peer_ref &&
!is_null_oid(&rm->old_oid) &&
!oidcmp(&rm->peer_ref->old_oid, &rm->old_oid))
continue;
ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
heads[nr_heads++] = rm;
}
if (!nr_heads) {
/*
* When deepening of a shallow repository is requested,
* then local and remote refs are likely to still be equal.
* Just feed them all to the fetch method in that case.
* This condition shouldn't be met in a non-deepening fetch
* (see builtin/fetch.c:quickfetch()).
*/
ALLOC_ARRAY(heads, nr_refs);
for (rm = refs; rm; rm = rm->next)
heads[nr_heads++] = rm;
}
rc = transport->fetch(transport, nr_heads, heads);
free(heads);
return rc;
}
static int checkout_branch(struct checkout_opts *opts,
struct branch_info *new_branch_info)
{
if (opts->pathspec.nr)
die(_("paths cannot be used with switching branches"));
if (opts->patch_mode)
die(_("'%s' cannot be used with switching branches"),
"--patch");
if (!opts->overlay_mode)
die(_("'%s' cannot be used with switching branches"),
"--no-overlay");
if (opts->writeout_stage)
die(_("'%s' cannot be used with switching branches"),
"--ours/--theirs");
if (opts->force && opts->merge)
die(_("'%s' cannot be used with '%s'"), "-f", "-m");
if (opts->force_detach && opts->new_branch)
die(_("'%s' cannot be used with '%s'"),
"--detach", "-b/-B/--orphan");
if (opts->new_orphan_branch) {
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
die(_("'%s' cannot be used with '%s'"), "--orphan", "-t");
} else if (opts->force_detach) {
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
die(_("'%s' cannot be used with '%s'"), "--detach", "-t");
} else if (opts->track == BRANCH_TRACK_UNSPECIFIED)
opts->track = git_branch_track;
if (new_branch_info->name && !new_branch_info->commit)
die(_("Cannot switch branch to a non-commit '%s'"),
new_branch_info->name);
if (new_branch_info->path && !opts->force_detach && !opts->new_branch &&
!opts->ignore_other_worktrees) {
int flag;
char *head_ref = resolve_refdup("HEAD", 0, NULL, &flag);
if (head_ref &&
(!(flag & REF_ISSYMREF) || strcmp(head_ref, new_branch_info->path)))
die_if_checked_out(new_branch_info->path, 1);
free(head_ref);
}
if (!new_branch_info->commit && opts->new_branch) {
struct object_id rev;
int flag;
if (!read_ref_full("HEAD", 0, &rev, &flag) &&
(flag & REF_ISSYMREF) && is_null_oid(&rev))
return switch_unborn_to_new_branch(opts);
}
return switch_branches(opts, new_branch_info);
}
int combine_notes_concatenate(struct object_id *cur_oid,
const struct object_id *new_oid)
{
char *cur_msg = NULL, *new_msg = NULL, *buf;
unsigned long cur_len, new_len, buf_len;
enum object_type cur_type, new_type;
int ret;
/* read in both note blob objects */
if (!is_null_oid(new_oid))
new_msg = read_object_file(new_oid, &new_type, &new_len);
if (!new_msg || !new_len || new_type != OBJ_BLOB) {
free(new_msg);
return 0;
}
if (!is_null_oid(cur_oid))
cur_msg = read_object_file(cur_oid, &cur_type, &cur_len);
if (!cur_msg || !cur_len || cur_type != OBJ_BLOB) {
free(cur_msg);
free(new_msg);
oidcpy(cur_oid, new_oid);
return 0;
}
/* we will separate the notes by two newlines anyway */
if (cur_msg[cur_len - 1] == '\n')
cur_len--;
/* concatenate cur_msg and new_msg into buf */
buf_len = cur_len + 2 + new_len;
buf = (char *) xmalloc(buf_len);
memcpy(buf, cur_msg, cur_len);
buf[cur_len] = '\n';
buf[cur_len + 1] = '\n';
memcpy(buf + cur_len + 2, new_msg, new_len);
free(cur_msg);
free(new_msg);
/* create a new blob object from buf */
ret = write_object_file(buf, buf_len, blob_type, cur_oid);
free(buf);
return ret;
}
static int merge_one_change_manual(struct notes_merge_options *o,
struct notes_merge_pair *p,
struct notes_tree *t)
{
const char *lref = o->local_ref ? o->local_ref : "local version";
const char *rref = o->remote_ref ? o->remote_ref : "remote version";
trace_printf("\t\t\tmerge_one_change_manual(obj = %.7s, base = %.7s, "
"local = %.7s, remote = %.7s)\n",
oid_to_hex(&p->obj), oid_to_hex(&p->base),
oid_to_hex(&p->local), oid_to_hex(&p->remote));
/* add "Conflicts:" section to commit message first time through */
if (!o->has_worktree)
strbuf_addstr(&(o->commit_msg), "\n\nConflicts:\n");
strbuf_addf(&(o->commit_msg), "\t%s\n", oid_to_hex(&p->obj));
if (o->verbosity >= 2)
printf("Auto-merging notes for %s\n", oid_to_hex(&p->obj));
check_notes_merge_worktree(o);
if (is_null_oid(&p->local)) {
/* D/F conflict, checkout p->remote */
assert(!is_null_oid(&p->remote));
if (o->verbosity >= 1)
printf("CONFLICT (delete/modify): Notes for object %s "
"deleted in %s and modified in %s. Version from %s "
"left in tree.\n",
oid_to_hex(&p->obj), lref, rref, rref);
write_note_to_worktree(&p->obj, &p->remote);
} else if (is_null_oid(&p->remote)) {
/* D/F conflict, checkout p->local */
assert(!is_null_oid(&p->local));
if (o->verbosity >= 1)
printf("CONFLICT (delete/modify): Notes for object %s "
"deleted in %s and modified in %s. Version from %s "
"left in tree.\n",
oid_to_hex(&p->obj), rref, lref, lref);
write_note_to_worktree(&p->obj, &p->local);
} else {
/* "regular" conflict, checkout result of ll_merge() */
const char *reason = "content";
if (is_null_oid(&p->base))
reason = "add/add";
assert(!is_null_oid(&p->local));
assert(!is_null_oid(&p->remote));
if (o->verbosity >= 1)
printf("CONFLICT (%s): Merge conflict in notes for "
"object %s\n", reason,
oid_to_hex(&p->obj));
ll_merge_in_worktree(o, p);
}
trace_printf("\t\t\tremoving from partial merge result\n");
remove_note(t, p->obj.hash);
return 1;
}
static int verify_notes_filepair(struct diff_filepair *p, struct object_id *oid)
{
switch (p->status) {
case DIFF_STATUS_MODIFIED:
assert(p->one->mode == p->two->mode);
assert(!is_null_oid(&p->one->oid));
assert(!is_null_oid(&p->two->oid));
break;
case DIFF_STATUS_ADDED:
assert(is_null_oid(&p->one->oid));
break;
case DIFF_STATUS_DELETED:
assert(is_null_oid(&p->two->oid));
break;
default:
return -1;
}
assert(!strcmp(p->one->path, p->two->path));
return path_to_oid(p->one->path, oid);
}
/*
* When we cannot load the full patch-id for both commits for whatever
* reason, the function returns -1 (i.e. return error(...)). Despite
* the "neq" in the name of this function, the caller only cares about
* the return value being zero (a and b are equivalent) or non-zero (a
* and b are different), and returning non-zero would keep both in the
* result, even if they actually were equivalent, in order to err on
* the side of safety. The actual value being negative does not have
* any significance; only that it is non-zero matters.
*/
static int patch_id_neq(const void *cmpfn_data,
const void *entry,
const void *entry_or_key,
const void *unused_keydata)
{
/* NEEDSWORK: const correctness? */
struct diff_options *opt = (void *)cmpfn_data;
struct patch_id *a = (void *)entry;
struct patch_id *b = (void *)entry_or_key;
if (is_null_oid(&a->patch_id) &&
commit_patch_id(a->commit, opt, &a->patch_id, 0))
return error("Could not get patch ID for %s",
oid_to_hex(&a->commit->object.oid));
if (is_null_oid(&b->patch_id) &&
commit_patch_id(b->commit, opt, &b->patch_id, 0))
return error("Could not get patch ID for %s",
oid_to_hex(&b->commit->object.oid));
return !oideq(&a->patch_id, &b->patch_id);
}
static int show_modified(struct rev_info *revs,
const struct cache_entry *old_entry,
const struct cache_entry *new_entry,
int report_missing,
int cached, int match_missing)
{
unsigned int mode, oldmode;
const struct object_id *oid;
unsigned dirty_submodule = 0;
if (get_stat_data(new_entry, &oid, &mode, cached, match_missing,
&dirty_submodule, &revs->diffopt) < 0) {
if (report_missing)
diff_index_show_file(revs, "-", old_entry,
&old_entry->oid, 1, old_entry->ce_mode,
0);
return -1;
}
if (revs->combine_merges && !cached &&
(!oideq(oid, &old_entry->oid) || !oideq(&old_entry->oid, &new_entry->oid))) {
struct combine_diff_path *p;
int pathlen = ce_namelen(new_entry);
p = xmalloc(combine_diff_path_size(2, pathlen));
p->path = (char *) &p->parent[2];
p->next = NULL;
memcpy(p->path, new_entry->name, pathlen);
p->path[pathlen] = 0;
p->mode = mode;
oidclr(&p->oid);
memset(p->parent, 0, 2 * sizeof(struct combine_diff_parent));
p->parent[0].status = DIFF_STATUS_MODIFIED;
p->parent[0].mode = new_entry->ce_mode;
oidcpy(&p->parent[0].oid, &new_entry->oid);
p->parent[1].status = DIFF_STATUS_MODIFIED;
p->parent[1].mode = old_entry->ce_mode;
oidcpy(&p->parent[1].oid, &old_entry->oid);
show_combined_diff(p, 2, revs->dense_combined_merges, revs);
free(p);
return 0;
}
oldmode = old_entry->ce_mode;
if (mode == oldmode && oideq(oid, &old_entry->oid) && !dirty_submodule &&
!revs->diffopt.flags.find_copies_harder)
return 0;
diff_change(&revs->diffopt, oldmode, mode,
&old_entry->oid, oid, 1, !is_null_oid(oid),
old_entry->name, 0, dirty_submodule);
return 0;
}
static int merge_commit(struct notes_merge_options *o)
{
struct strbuf msg = STRBUF_INIT;
struct object_id oid, parent_oid;
struct notes_tree *t;
struct commit *partial;
struct pretty_print_context pretty_ctx;
void *local_ref_to_free;
int ret;
/*
* Read partial merge result from .git/NOTES_MERGE_PARTIAL,
* and target notes ref from .git/NOTES_MERGE_REF.
*/
if (get_oid("NOTES_MERGE_PARTIAL", &oid))
die(_("failed to read ref NOTES_MERGE_PARTIAL"));
else if (!(partial = lookup_commit_reference(&oid)))
die(_("could not find commit from NOTES_MERGE_PARTIAL."));
else if (parse_commit(partial))
die(_("could not parse commit from NOTES_MERGE_PARTIAL."));
if (partial->parents)
oidcpy(&parent_oid, &partial->parents->item->object.oid);
else
oidclr(&parent_oid);
t = xcalloc(1, sizeof(struct notes_tree));
init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0);
o->local_ref = local_ref_to_free =
resolve_refdup("NOTES_MERGE_REF", 0, oid.hash, NULL);
if (!o->local_ref)
die(_("failed to resolve NOTES_MERGE_REF"));
if (notes_merge_commit(o, t, partial, &oid))
die(_("failed to finalize notes merge"));
/* Reuse existing commit message in reflog message */
memset(&pretty_ctx, 0, sizeof(pretty_ctx));
format_commit_message(partial, "%s", &msg, &pretty_ctx);
strbuf_trim(&msg);
strbuf_insert(&msg, 0, "notes: ", 7);
update_ref(msg.buf, o->local_ref, oid.hash,
is_null_oid(&parent_oid) ? NULL : parent_oid.hash,
0, UPDATE_REFS_DIE_ON_ERR);
free_notes(t);
strbuf_release(&msg);
ret = merge_abort(o);
free(local_ref_to_free);
return ret;
}
/*
* Fill the blob_sha1 field of an origin if it hasn't, so that later
* call to fill_origin_blob() can use it to locate the data. blob_sha1
* for an origin is also used to pass the blame for the entire file to
* the parent to detect the case where a child's blob is identical to
* that of its parent's.
*
* This also fills origin->mode for corresponding tree path.
*/
static int fill_blob_sha1_and_mode(struct blame_origin *origin)
{
if (!is_null_oid(&origin->blob_oid))
return 0;
if (get_tree_entry(&origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
goto error_out;
if (oid_object_info(the_repository, &origin->blob_oid, NULL) != OBJ_BLOB)
goto error_out;
return 0;
error_out:
oidclr(&origin->blob_oid);
origin->mode = S_IFINVALID;
return -1;
}
int remove_note(struct notes_tree *t, const unsigned char *object_sha1)
{
struct leaf_node l;
if (!t)
t = &default_notes_tree;
assert(t->initialized);
hashcpy(l.key_oid.hash, object_sha1);
oidclr(&l.val_oid);
note_tree_remove(t, t->root, 0, &l);
if (is_null_oid(&l.val_oid)) /* no note was removed */
return 1;
t->dirty = 1;
return 0;
}
static int packed_ref_iterator_peel(struct ref_iterator *ref_iterator,
struct object_id *peeled)
{
struct packed_ref_iterator *iter =
(struct packed_ref_iterator *)ref_iterator;
if ((iter->base.flags & REF_KNOWS_PEELED)) {
oidcpy(peeled, &iter->peeled);
return is_null_oid(&iter->peeled) ? -1 : 0;
} else if ((iter->base.flags & (REF_ISBROKEN | REF_ISSYMREF))) {
return -1;
} else {
return !!peel_object(&iter->oid, peeled);
}
}
static void export_blob(const struct object_id *oid)
{
unsigned long size;
enum object_type type;
char *buf;
struct object *object;
int eaten;
if (no_data)
return;
if (is_null_oid(oid))
return;
object = lookup_object(oid->hash);
if (object && object->flags & SHOWN)
return;
if (anonymize) {
buf = anonymize_blob(&size);
object = (struct object *)lookup_blob(oid);
eaten = 0;
} else {
buf = read_object_file(oid, &type, &size);
if (!buf)
die ("Could not read blob %s", oid_to_hex(oid));
if (check_object_signature(oid, buf, size, type_name(type)) < 0)
die("sha1 mismatch in blob %s", oid_to_hex(oid));
object = parse_object_buffer(oid, type, size, buf, &eaten);
}
if (!object)
die("Could not read blob %s", oid_to_hex(oid));
mark_next_object(object);
printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size);
if (size && fwrite(buf, size, 1, stdout) != 1)
die_errno ("Could not write blob '%s'", oid_to_hex(oid));
printf("\n");
show_progress();
object->flags |= SHOWN;
if (!eaten)
free(buf);
}
static void set_upstreams(struct transport *transport, struct ref *refs,
int pretend)
{
struct ref *ref;
for (ref = refs; ref; ref = ref->next) {
const char *localname;
const char *tmp;
const char *remotename;
unsigned char sha[20];
int flag = 0;
/*
* Check suitability for tracking. Must be successful /
* already up-to-date ref create/modify (not delete).
*/
if (ref->status != REF_STATUS_OK &&
ref->status != REF_STATUS_UPTODATE)
continue;
if (!ref->peer_ref)
continue;
if (is_null_oid(&ref->new_oid))
continue;
/* Follow symbolic refs (mainly for HEAD). */
localname = ref->peer_ref->name;
remotename = ref->name;
tmp = resolve_ref_unsafe(localname, RESOLVE_REF_READING,
sha, &flag);
if (tmp && flag & REF_ISSYMREF &&
starts_with(tmp, "refs/heads/"))
localname = tmp;
/* Both source and destination must be local branches. */
if (!localname || !starts_with(localname, "refs/heads/"))
continue;
if (!remotename || !starts_with(remotename, "refs/heads/"))
continue;
if (!pretend)
install_branch_config(BRANCH_CONFIG_VERBOSE,
localname + 11, transport->remote->name,
remotename);
else
printf(_("Would set upstream of '%s' to '%s' of '%s'\n"),
localname + 11, remotename + 11,
transport->remote->name);
}
}
static int gitmodule_oid_from_commit(const struct object_id *treeish_name,
struct object_id *gitmodules_oid,
struct strbuf *rev)
{
int ret = 0;
if (is_null_oid(treeish_name)) {
oidclr(gitmodules_oid);
return 1;
}
strbuf_addf(rev, "%s:.gitmodules", oid_to_hex(treeish_name));
if (get_oid(rev->buf, gitmodules_oid) >= 0)
ret = 1;
return ret;
}
static void show_new_file(struct rev_info *revs,
const struct cache_entry *new_file,
int cached, int match_missing)
{
const struct object_id *oid;
unsigned int mode;
unsigned dirty_submodule = 0;
/*
* New file in the index: it might actually be different in
* the working tree.
*/
if (get_stat_data(new_file, &oid, &mode, cached, match_missing,
&dirty_submodule, &revs->diffopt) < 0)
return;
diff_index_show_file(revs, "+", new_file, oid, !is_null_oid(oid), mode, dirty_submodule);
}
int transport_fetch_refs(struct transport *transport, struct ref *refs)
{
int rc;
int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
struct ref **heads = NULL;
struct ref *rm;
if (!transport->vtable->fetch_without_list)
/*
* Some transports (e.g. the built-in bundle transport and the
* transport helper interface) do not work when fetching is
* done immediately after transport creation. List the remote
* refs anyway (if not already listed) as a workaround.
*/
transport_get_remote_refs(transport, NULL);
for (rm = refs; rm; rm = rm->next) {
nr_refs++;
if (rm->peer_ref &&
!is_null_oid(&rm->old_oid) &&
oideq(&rm->peer_ref->old_oid, &rm->old_oid))
continue;
ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
heads[nr_heads++] = rm;
}
if (!nr_heads) {
/*
* When deepening of a shallow repository is requested,
* then local and remote refs are likely to still be equal.
* Just feed them all to the fetch method in that case.
* This condition shouldn't be met in a non-deepening fetch
* (see builtin/fetch.c:quickfetch()).
*/
ALLOC_ARRAY(heads, nr_refs);
for (rm = refs; rm; rm = rm->next)
heads[nr_heads++] = rm;
}
rc = transport->vtable->fetch(transport, nr_heads, heads);
free(heads);
return rc;
}
static void print_bases(struct base_tree_info *bases)
{
int i;
/* Only do this once, either for the cover or for the first one */
if (is_null_oid(&bases->base_commit))
return;
/* Show the base commit */
printf("base-commit: %s\n", oid_to_hex(&bases->base_commit));
/* Show the prerequisite patches */
for (i = bases->nr_patch_id - 1; i >= 0; i--)
printf("prerequisite-patch-id: %s\n", oid_to_hex(&bases->patch_id[i]));
free(bases->patch_id);
bases->nr_patch_id = 0;
bases->alloc_patch_id = 0;
oidclr(&bases->base_commit);
}
static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
timestamp_t timestamp)
{
struct object *obj;
if (!is_null_oid(oid)) {
obj = lookup_object(oid->hash);
if (obj && (obj->flags & HAS_OBJ)) {
if (timestamp && name_objects)
add_decoration(fsck_walk_options.object_names,
obj,
xstrfmt("%s@{%"PRItime"}", refname, timestamp));
obj->flags |= USED;
mark_object_reachable(obj);
} else if (!is_promisor_object(oid)) {
error("%s: invalid reflog entry %s", refname, oid_to_hex(oid));
errors_found |= ERROR_REACHABLE;
}
}
}
void fake_reflog_parent(struct reflog_walk_info *info, struct commit *commit)
{
struct commit_info *commit_info =
get_commit_info(commit, &info->reflogs, 0);
struct commit_reflog *commit_reflog;
struct object *logobj;
struct reflog_info *reflog;
info->last_commit_reflog = NULL;
if (!commit_info)
return;
commit_reflog = commit_info->util;
if (commit_reflog->recno < 0) {
commit->parents = NULL;
return;
}
info->last_commit_reflog = commit_reflog;
do {
reflog = &commit_reflog->reflogs->items[commit_reflog->recno];
commit_reflog->recno--;
logobj = parse_object(&reflog->ooid);
} while (commit_reflog->recno && (logobj && logobj->type != OBJ_COMMIT));
if (!logobj && commit_reflog->recno >= 0 && is_null_oid(&reflog->ooid)) {
/* a root commit, but there are still more entries to show */
reflog = &commit_reflog->reflogs->items[commit_reflog->recno];
logobj = parse_object(&reflog->noid);
}
if (!logobj || logobj->type != OBJ_COMMIT) {
commit_info->commit = NULL;
commit->parents = NULL;
return;
}
commit_info->commit = (struct commit *)logobj;
commit->parents = xcalloc(1, sizeof(struct commit_list));
commit->parents->item = commit_info->commit;
}
