static void send_unshallow(const struct object_array *shallows)
{
int i;
for (i = 0; i < shallows->nr; i++) {
struct object *object = shallows->objects[i].item;
if (object->flags & NOT_SHALLOW) {
struct commit_list *parents;
packet_write_fmt(1, "unshallow %s",
oid_to_hex(&object->oid));
object->flags &= ~CLIENT_SHALLOW;
/*
* We want to _register_ "object" as shallow, but we
* also need to traverse object's parents to deepen a
* shallow clone. Unregister it for now so we can
* parse and add the parents to the want list, then
* re-register it.
*/
unregister_shallow(&object->oid);
object->parsed = 0;
parse_commit_or_die((struct commit *)object);
parents = ((struct commit *)object)->parents;
while (parents) {
add_object_array(&parents->item->object,
NULL, &want_obj);
parents = parents->next;
}
add_object_array(object, NULL, &extra_edge_obj);
}
/* make sure commit traversal conforms to client */
register_shallow(the_repository, &object->oid);
}
}
static int find_first_merges(struct object_array *result, const char *path,
struct commit *a, struct commit *b)
{
int i, j;
struct object_array merges;
struct commit *commit;
int contains_another;
char merged_revision[42];
const char *rev_args[] = { "rev-list", "--merges", "--ancestry-path",
"--all", merged_revision, NULL };
struct rev_info revs;
struct setup_revision_opt rev_opts;
memset(&merges, 0, sizeof(merges));
memset(result, 0, sizeof(struct object_array));
memset(&rev_opts, 0, sizeof(rev_opts));
/* get all revisions that merge commit a */
snprintf(merged_revision, sizeof(merged_revision), "^%s",
sha1_to_hex(a->object.sha1));
init_revisions(&revs, NULL);
rev_opts.submodule = path;
setup_revisions(sizeof(rev_args)/sizeof(char *)-1, rev_args, &revs, &rev_opts);
/* save all revisions from the above list that contain b */
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
while ((commit = get_revision(&revs)) != NULL) {
struct object *o = &(commit->object);
if (in_merge_bases(b, commit))
add_object_array(o, NULL, &merges);
}
reset_revision_walk();
/* Now we've got all merges that contain a and b. Prune all
* merges that contain another found merge and save them in
* result.
*/
for (i = 0; i < merges.nr; i++) {
struct commit *m1 = (struct commit *) merges.objects[i].item;
contains_another = 0;
for (j = 0; j < merges.nr; j++) {
struct commit *m2 = (struct commit *) merges.objects[j].item;
if (i != j && in_merge_bases(m2, m1)) {
contains_another = 1;
break;
}
}
if (!contains_another)
add_object_array(merges.objects[i].item,
merges.objects[i].name, result);
}
free(merges.objects);
return result->nr;
}
static int parse_want(const char *line)
{
const char *arg;
if (skip_prefix(line, "want ", &arg)) {
struct object_id oid;
struct object *o;
if (get_oid_hex(arg, &oid))
die("git upload-pack: protocol error, "
"expected to get oid, not '%s'", line);
o = parse_object(&oid);
if (!o) {
packet_write_fmt(1,
"ERR upload-pack: not our ref %s",
oid_to_hex(&oid));
die("git upload-pack: not our ref %s",
oid_to_hex(&oid));
}
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
add_object_array(o, NULL, &want_obj);
}
return 1;
}
return 0;
}
struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
int shallow_flag, int not_shallow_flag)
{
int i = 0, cur_depth = 0;
struct commit_list *result = NULL;
struct object_array stack = OBJECT_ARRAY_INIT;
struct commit *commit = NULL;
while (commit || i < heads->nr || stack.nr) {
struct commit_list *p;
if (!commit) {
if (i < heads->nr) {
commit = (struct commit *)
deref_tag(heads->objects[i++].item, NULL, 0);
if (!commit || commit->object.type != OBJ_COMMIT) {
commit = NULL;
continue;
}
if (!commit->util)
commit->util = xmalloc(sizeof(int));
*(int *)commit->util = 0;
cur_depth = 0;
} else {
commit = (struct commit *)
stack.objects[--stack.nr].item;
cur_depth = *(int *)commit->util;
}
}
parse_commit_or_die(commit);
cur_depth++;
if (cur_depth >= depth) {
commit_list_insert(commit, &result);
commit->object.flags |= shallow_flag;
commit = NULL;
continue;
}
commit->object.flags |= not_shallow_flag;
for (p = commit->parents, commit = NULL; p; p = p->next) {
if (!p->item->util) {
int *pointer = xmalloc(sizeof(int));
p->item->util = pointer;
*pointer = cur_depth;
} else {
int *pointer = p->item->util;
if (cur_depth >= *pointer)
continue;
*pointer = cur_depth;
}
if (p->next)
add_object_array(&p->item->object,
NULL, &stack);
else {
commit = p->item;
cur_depth = *(int *)commit->util;
}
}
}
return result;
}
void add_object(struct object *obj,
struct object_array *p,
struct name_path *path,
const char *name)
{
add_object_array(obj, path_name(path, name), p);
}
static int got_sha1(char *hex, unsigned char *sha1)
{
struct object *o;
int we_knew_they_have = 0;
if (get_sha1_hex(hex, sha1))
die("git upload-pack: expected SHA1 object, got '%s'", hex);
if (!has_sha1_file(sha1))
return -1;
o = parse_object(sha1);
if (!o)
die("oops (%s)", sha1_to_hex(sha1));
if (o->type == OBJ_COMMIT) {
struct commit_list *parents;
struct commit *commit = (struct commit *)o;
if (o->flags & THEY_HAVE)
we_knew_they_have = 1;
else
o->flags |= THEY_HAVE;
if (!oldest_have || (commit->date < oldest_have))
oldest_have = commit->date;
for (parents = commit->parents;
parents;
parents = parents->next)
parents->item->object.flags |= THEY_HAVE;
}
if (!we_knew_they_have) {
add_object_array(o, NULL, &have_obj);
return 1;
}
return 0;
}
static int check_ancestors(const char *prefix)
{
struct rev_info revs;
struct object_array pending_copy;
int i, res;
bisect_rev_setup(&revs, prefix, "^%s", "%s", 0);
/* Save pending objects, so they can be cleaned up later. */
memset(&pending_copy, 0, sizeof(pending_copy));
for (i = 0; i < revs.pending.nr; i++)
add_object_array(revs.pending.objects[i].item,
revs.pending.objects[i].name,
&pending_copy);
bisect_common(&revs);
res = (revs.commits != NULL);
/* Clean up objects used, as they will be reused. */
for (i = 0; i < pending_copy.nr; i++) {
struct object *o = pending_copy.objects[i].item;
clear_commit_marks((struct commit *)o, ALL_REV_FLAGS);
}
return res;
}
static void handle_tail(struct object_array *commits, struct rev_info *revs,
struct string_list *paths_of_changed_objects)
{
struct commit *commit;
while (commits->nr) {
commit = (struct commit *)object_array_pop(commits);
if (has_unshown_parent(commit)) {
/* Queue again, to be handled later */
add_object_array(&commit->object, NULL, commits);
return;
}
handle_commit(commit, revs, paths_of_changed_objects);
}
}
static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options)
{
struct object *parent = data;
/*
* The only case data is NULL or type is OBJ_ANY is when
* mark_object_reachable() calls us. All the callers of
* that function has non-NULL obj hence ...
*/
if (!obj) {
/* ... these references to parent->fld are safe here */
printf("broken link from %7s %s\n",
printable_type(parent), describe_object(parent));
printf("broken link from %7s %s\n",
(type == OBJ_ANY ? "unknown" : type_name(type)), "unknown");
errors_found |= ERROR_REACHABLE;
return 1;
}
if (type != OBJ_ANY && obj->type != type)
/* ... and the reference to parent is safe here */
objerror(parent, "wrong object type in link");
if (obj->flags & REACHABLE)
return 0;
obj->flags |= REACHABLE;
if (is_promisor_object(&obj->oid))
/*
* Further recursion does not need to be performed on this
* object since it is a promisor object (so it does not need to
* be added to "pending").
*/
return 0;
if (!(obj->flags & HAS_OBJ)) {
if (parent && !has_object_file(&obj->oid)) {
printf("broken link from %7s %s\n",
printable_type(parent), describe_object(parent));
printf(" to %7s %s\n",
printable_type(obj), describe_object(obj));
errors_found |= ERROR_REACHABLE;
}
return 1;
}
add_object_array(obj, NULL, &pending);
return 0;
}
void traverse_commit_list(struct rev_info *revs,
void (*show_commit)(struct commit *),
void (*show_object)(struct object_array_entry *))
{
int i;
struct commit *commit;
struct object_array objects = { 0, 0, NULL };
while ((commit = get_revision(revs)) != NULL) {
process_tree(revs, commit->tree, &objects, NULL, "");
show_commit(commit);
}
for (i = 0; i < revs->pending.nr; i++) {
struct object_array_entry *pending = revs->pending.objects + i;
struct object *obj = pending->item;
const char *name = pending->name;
if (obj->flags & (UNINTERESTING | SEEN))
continue;
if (obj->type == OBJ_TAG) {
obj->flags |= SEEN;
add_object_array(obj, name, &objects);
continue;
}
if (obj->type == OBJ_TREE) {
process_tree(revs, (struct tree *)obj, &objects,
NULL, name);
continue;
}
if (obj->type == OBJ_BLOB) {
process_blob(revs, (struct blob *)obj, &objects,
NULL, name);
continue;
}
die("unknown pending object %s (%s)",
sha1_to_hex(obj->sha1), name);
}
for (i = 0; i < objects.nr; i++)
show_object(&objects.objects[i]);
free(objects.objects);
if (revs->pending.nr) {
free(revs->pending.objects);
revs->pending.nr = 0;
revs->pending.alloc = 0;
revs->pending.objects = NULL;
}
}
static int get_reachable_list(struct object_array *src,
struct object_array *reachable)
{
struct child_process cmd = CHILD_PROCESS_INIT;
int i;
struct object *o;
char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */
const unsigned hexsz = the_hash_algo->hexsz;
if (do_reachable_revlist(&cmd, src, reachable) < 0)
return -1;
while ((i = read_in_full(cmd.out, namebuf, hexsz + 1)) == hexsz + 1) {
struct object_id sha1;
const char *p;
if (parse_oid_hex(namebuf, &sha1, &p) || *p != '\n')
break;
o = lookup_object(sha1.hash);
if (o && o->type == OBJ_COMMIT) {
o->flags &= ~TMP_MARK;
}
}
for (i = get_max_object_index(); 0 < i; i--) {
o = get_indexed_object(i - 1);
if (o && o->type == OBJ_COMMIT &&
(o->flags & TMP_MARK)) {
add_object_array(o, NULL, reachable);
o->flags &= ~TMP_MARK;
}
}
close(cmd.out);
if (finish_command(&cmd))
return -1;
return 0;
}
static int process_shallow(const char *line, struct object_array *shallows)
{
const char *arg;
if (skip_prefix(line, "shallow ", &arg)) {
struct object_id oid;
struct object *object;
if (get_oid_hex(arg, &oid))
die("invalid shallow line: %s", line);
object = parse_object(&oid);
if (!object)
return 1;
if (object->type != OBJ_COMMIT)
die("invalid shallow object %s", oid_to_hex(&oid));
if (!(object->flags & CLIENT_SHALLOW)) {
object->flags |= CLIENT_SHALLOW;
add_object_array(object, NULL, shallows);
}
return 1;
}
return 0;
}
static int process_haves(struct oid_array *haves, struct oid_array *common)
{
int i;
/* Process haves */
for (i = 0; i < haves->nr; i++) {
const struct object_id *oid = &haves->oid[i];
struct object *o;
int we_knew_they_have = 0;
if (!has_object_file(oid))
continue;
oid_array_append(common, oid);
o = parse_object(oid);
if (!o)
die("oops (%s)", oid_to_hex(oid));
if (o->type == OBJ_COMMIT) {
struct commit_list *parents;
struct commit *commit = (struct commit *)o;
if (o->flags & THEY_HAVE)
we_knew_they_have = 1;
else
o->flags |= THEY_HAVE;
if (!oldest_have || (commit->date < oldest_have))
oldest_have = commit->date;
for (parents = commit->parents;
parents;
parents = parents->next)
parents->item->object.flags |= THEY_HAVE;
}
if (!we_knew_they_have)
add_object_array(o, NULL, &have_obj);
}
return 0;
}
static int get_reachable_list(struct object_array *src,
struct object_array *reachable)
{
struct child_process cmd = CHILD_PROCESS_INIT;
int i;
struct object *o;
char namebuf[42]; /* ^ + SHA-1 + LF */
if (do_reachable_revlist(&cmd, src, reachable) < 0)
return -1;
while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) {
struct object_id sha1;
if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
break;
o = lookup_object(sha1.hash);
if (o && o->type == OBJ_COMMIT) {
o->flags &= ~TMP_MARK;
}
}
for (i = get_max_object_index(); 0 < i; i--) {
o = get_indexed_object(i - 1);
if (o && o->type == OBJ_COMMIT &&
(o->flags & TMP_MARK)) {
add_object_array(o, NULL, reachable);
o->flags &= ~TMP_MARK;
}
}
close(cmd.out);
if (finish_command(&cmd))
return -1;
return 0;
}
int cmd_diff(int argc, const char **argv, const char *prefix)
{
int i;
struct rev_info rev;
struct object_array ent = OBJECT_ARRAY_INIT;
int blobs = 0, paths = 0;
const char *path = NULL;
struct blobinfo blob[2];
int nongit;
int result = 0;
/*
* We could get N tree-ish in the rev.pending_objects list.
* Also there could be M blobs there, and P pathspecs.
*
* N=0, M=0:
* cache vs files (diff-files)
* N=0, M=2:
* compare two random blobs. P must be zero.
* N=0, M=1, P=1:
* compare a blob with a working tree file.
*
* N=1, M=0:
* tree vs cache (diff-index --cached)
*
* N=2, M=0:
* tree vs tree (diff-tree)
*
* N=0, M=0, P=2:
* compare two filesystem entities (aka --no-index).
*
* Other cases are errors.
*/
prefix = setup_git_directory_gently(&nongit);
gitmodules_config();
git_config(git_diff_ui_config, NULL);
init_revisions(&rev, prefix);
/* If this is a no-index diff, just run it and exit there. */
diff_no_index(&rev, argc, argv, nongit, prefix);
/* Otherwise, we are doing the usual "git" diff */
rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
/* Scale to real terminal size and respect statGraphWidth config */
rev.diffopt.stat_width = -1;
rev.diffopt.stat_graph_width = -1;
/* Default to let external and textconv be used */
DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
if (nongit)
die(_("Not a git repository"));
argc = setup_revisions(argc, argv, &rev, NULL);
if (!rev.diffopt.output_format) {
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
diff_setup_done(&rev.diffopt);
}
DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
setup_diff_pager(&rev.diffopt);
/*
* Do we have --cached and not have a pending object, then
* default to HEAD by hand. Eek.
*/
if (!rev.pending.nr) {
int i;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--"))
break;
else if (!strcmp(arg, "--cached") ||
!strcmp(arg, "--staged")) {
add_head_to_pending(&rev);
if (!rev.pending.nr) {
struct tree *tree;
tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
add_pending_object(&rev, &tree->object, "HEAD");
}
break;
}
}
}
for (i = 0; i < rev.pending.nr; i++) {
struct object_array_entry *entry = &rev.pending.objects[i];
struct object *obj = entry->item;
const char *name = entry->name;
int flags = (obj->flags & UNINTERESTING);
if (!obj->parsed)
obj = parse_object(obj->sha1);
obj = deref_tag(obj, NULL, 0);
if (!obj)
die(_("invalid object '%s' given."), name);
if (obj->type == OBJ_COMMIT)
obj = &((struct commit *)obj)->tree->object;
if (obj->type == OBJ_TREE) {
obj->flags |= flags;
add_object_array(obj, name, &ent);
} else if (obj->type == OBJ_BLOB) {
if (2 <= blobs)
die(_("more than two blobs given: '%s'"), name);
hashcpy(blob[blobs].sha1, obj->sha1);
blob[blobs].name = name;
blob[blobs].mode = entry->mode;
blobs++;
} else {
die(_("unhandled object '%s' given."), name);
}
}
if (rev.prune_data.nr) {
if (!path)
path = rev.prune_data.items[0].match;
paths += rev.prune_data.nr;
}
/*
* Now, do the arguments look reasonable?
*/
if (!ent.nr) {
switch (blobs) {
case 0:
result = builtin_diff_files(&rev, argc, argv);
break;
case 1:
if (paths != 1)
usage(builtin_diff_usage);
result = builtin_diff_b_f(&rev, argc, argv, blob, path);
break;
case 2:
if (paths)
usage(builtin_diff_usage);
result = builtin_diff_blobs(&rev, argc, argv, blob);
break;
default:
usage(builtin_diff_usage);
}
}
else if (blobs)
usage(builtin_diff_usage);
else if (ent.nr == 1)
result = builtin_diff_index(&rev, argc, argv);
else if (ent.nr == 2)
result = builtin_diff_tree(&rev, argc, argv,
&ent.objects[0], &ent.objects[1]);
else if (ent.objects[0].item->flags & UNINTERESTING) {
/*
* diff A...B where there is at least one merge base
* between A and B. We have ent.objects[0] ==
* merge-base, ent.objects[ents-2] == A, and
* ent.objects[ents-1] == B. Show diff between the
* base and B. Note that we pick one merge base at
* random if there are more than one.
*/
result = builtin_diff_tree(&rev, argc, argv,
&ent.objects[0],
&ent.objects[ent.nr-1]);
} else
result = builtin_diff_combined(&rev, argc, argv,
ent.objects, ent.nr);
result = diff_result_code(&rev.diffopt, result);
if (1 < rev.diffopt.skip_stat_unmatch)
refresh_index_quietly();
return result;
}
int cmd_name_rev(int argc, const char **argv, const char *prefix)
{
struct object_array revs = OBJECT_ARRAY_INIT;
int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0, peel_tag = 0;
struct name_ref_data data = { 0, 0, NULL };
struct option opts[] = {
OPT_BOOL(0, "name-only", &data.name_only, N_("print only names (no SHA-1)")),
OPT_BOOL(0, "tags", &data.tags_only, N_("only use tags to name the commits")),
OPT_STRING(0, "refs", &data.ref_filter, N_("pattern"),
N_("only use refs matching <pattern>")),
OPT_GROUP(""),
OPT_BOOL(0, "all", &all, N_("list all commits reachable from all refs")),
OPT_BOOL(0, "stdin", &transform_stdin, N_("read from stdin")),
OPT_BOOL(0, "undefined", &allow_undefined, N_("allow to print `undefined` names (default)")),
OPT_BOOL(0, "always", &always,
N_("show abbreviated commit object as fallback")),
{
/* A Hidden OPT_BOOL */
OPTION_SET_INT, 0, "peel-tag", &peel_tag, NULL,
N_("dereference tags in the input (internal use)"),
PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1,
},
OPT_END(),
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0);
if (all + transform_stdin + !!argc > 1) {
error("Specify either a list, or --all, not both!");
usage_with_options(name_rev_usage, opts);
}
if (all || transform_stdin)
cutoff = 0;
for (; argc; argc--, argv++) {
unsigned char sha1[20];
struct object *object;
struct commit *commit;
if (get_sha1(*argv, sha1)) {
fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
*argv);
continue;
}
commit = NULL;
object = parse_object(sha1);
if (object) {
struct object *peeled = deref_tag(object, *argv, 0);
if (peeled && peeled->type == OBJ_COMMIT)
commit = (struct commit *)peeled;
}
if (!object) {
fprintf(stderr, "Could not get object for %s. Skipping.\n",
*argv);
continue;
}
if (commit) {
if (cutoff > commit->date)
cutoff = commit->date;
}
if (peel_tag) {
if (!commit) {
fprintf(stderr, "Could not get commit for %s. Skipping.\n",
*argv);
continue;
}
object = (struct object *)commit;
}
add_object_array(object, *argv, &revs);
}
if (cutoff)
cutoff = cutoff - CUTOFF_DATE_SLOP;
for_each_ref(name_ref, &data);
if (transform_stdin) {
char buffer[2048];
while (!feof(stdin)) {
char *p = fgets(buffer, sizeof(buffer), stdin);
if (!p)
break;
name_rev_line(p, &data);
}
} else if (all) {
int i, max;
max = get_max_object_index();
for (i = 0; i < max; i++) {
struct object *obj = get_indexed_object(i);
if (!obj || obj->type != OBJ_COMMIT)
continue;
show_name(obj, NULL,
always, allow_undefined, data.name_only);
}
} else {
int i;
for (i = 0; i < revs.nr; i++)
show_name(revs.objects[i].item, revs.objects[i].name,
always, allow_undefined, data.name_only);
}
return 0;
}
int cmd_diff(int argc, const char **argv, const char *prefix)
{
int i;
struct rev_info rev;
struct object_array ent = OBJECT_ARRAY_INIT;
int blobs = 0, paths = 0;
struct blobinfo blob[2];
int nongit = 0, no_index = 0;
int result = 0;
/*
* We could get N tree-ish in the rev.pending_objects list.
* Also there could be M blobs there, and P pathspecs.
*
* N=0, M=0:
* cache vs files (diff-files)
* N=0, M=2:
* compare two random blobs. P must be zero.
* N=0, M=1, P=1:
* compare a blob with a working tree file.
*
* N=1, M=0:
* tree vs cache (diff-index --cached)
*
* N=2, M=0:
* tree vs tree (diff-tree)
*
* N=0, M=0, P=2:
* compare two filesystem entities (aka --no-index).
*
* Other cases are errors.
*/
/* Were we asked to do --no-index explicitly? */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "--")) {
i++;
break;
}
if (!strcmp(argv[i], "--no-index"))
no_index = DIFF_NO_INDEX_EXPLICIT;
if (argv[i][0] != '-')
break;
}
if (!no_index)
prefix = setup_git_directory_gently(&nongit);
/*
* Treat git diff with at least one path outside of the
* repo the same as if the command would have been executed
* outside of a git repository. In this case it behaves
* the same way as "git diff --no-index <a> <b>", which acts
* as a colourful "diff" replacement.
*/
if (nongit || ((argc == i + 2) &&
(!path_inside_repo(prefix, argv[i]) ||
!path_inside_repo(prefix, argv[i + 1]))))
no_index = DIFF_NO_INDEX_IMPLICIT;
if (!no_index)
gitmodules_config();
init_diff_ui_defaults();
git_config(git_diff_ui_config, NULL);
precompose_argv(argc, argv);
init_revisions(&rev, prefix);
if (no_index && argc != i + 2) {
if (no_index == DIFF_NO_INDEX_IMPLICIT) {
/*
* There was no --no-index and there were not two
* paths. It is possible that the user intended
* to do an inside-repository operation.
*/
fprintf(stderr, "Not a git repository\n");
fprintf(stderr,
"To compare two paths outside a working tree:\n");
}
/* Give the usage message for non-repository usage and exit. */
usagef("git diff %s <path> <path>",
no_index == DIFF_NO_INDEX_EXPLICIT ?
"--no-index" : "[--no-index]");
}
if (no_index)
/* If this is a no-index diff, just run it and exit there. */
diff_no_index(&rev, argc, argv);
/* Otherwise, we are doing the usual "git" diff */
rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
/* Scale to real terminal size and respect statGraphWidth config */
rev.diffopt.stat_width = -1;
rev.diffopt.stat_graph_width = -1;
/* Default to let external and textconv be used */
DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
if (nongit)
die(_("Not a git repository"));
argc = setup_revisions(argc, argv, &rev, NULL);
if (!rev.diffopt.output_format) {
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
diff_setup_done(&rev.diffopt);
}
DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
setup_diff_pager(&rev.diffopt);
/*
* Do we have --cached and not have a pending object, then
* default to HEAD by hand. Eek.
*/
if (!rev.pending.nr) {
int i;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--"))
break;
else if (!strcmp(arg, "--cached") ||
!strcmp(arg, "--staged")) {
add_head_to_pending(&rev);
if (!rev.pending.nr) {
struct tree *tree;
tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
add_pending_object(&rev, &tree->object, "HEAD");
}
break;
}
}
}
for (i = 0; i < rev.pending.nr; i++) {
struct object_array_entry *entry = &rev.pending.objects[i];
struct object *obj = entry->item;
const char *name = entry->name;
int flags = (obj->flags & UNINTERESTING);
if (!obj->parsed)
obj = parse_object(obj->oid.hash);
obj = deref_tag(obj, NULL, 0);
if (!obj)
die(_("invalid object '%s' given."), name);
if (obj->type == OBJ_COMMIT)
obj = &((struct commit *)obj)->tree->object;
if (obj->type == OBJ_TREE) {
obj->flags |= flags;
add_object_array(obj, name, &ent);
} else if (obj->type == OBJ_BLOB) {
if (2 <= blobs)
die(_("more than two blobs given: '%s'"), name);
hashcpy(blob[blobs].sha1, obj->oid.hash);
blob[blobs].name = name;
blob[blobs].mode = entry->mode;
blobs++;
} else {
die(_("unhandled object '%s' given."), name);
}
}
if (rev.prune_data.nr)
paths += rev.prune_data.nr;
/*
* Now, do the arguments look reasonable?
*/
if (!ent.nr) {
switch (blobs) {
case 0:
result = builtin_diff_files(&rev, argc, argv);
break;
case 1:
if (paths != 1)
usage(builtin_diff_usage);
result = builtin_diff_b_f(&rev, argc, argv, blob);
break;
case 2:
if (paths)
usage(builtin_diff_usage);
result = builtin_diff_blobs(&rev, argc, argv, blob);
break;
default:
usage(builtin_diff_usage);
}
}
else if (blobs)
usage(builtin_diff_usage);
else if (ent.nr == 1)
result = builtin_diff_index(&rev, argc, argv);
else if (ent.nr == 2)
result = builtin_diff_tree(&rev, argc, argv,
&ent.objects[0], &ent.objects[1]);
else if (ent.objects[0].item->flags & UNINTERESTING) {
/*
* diff A...B where there is at least one merge base
* between A and B. We have ent.objects[0] ==
* merge-base, ent.objects[ents-2] == A, and
* ent.objects[ents-1] == B. Show diff between the
* base and B. Note that we pick one merge base at
* random if there are more than one.
*/
result = builtin_diff_tree(&rev, argc, argv,
&ent.objects[0],
&ent.objects[ent.nr-1]);
} else
result = builtin_diff_combined(&rev, argc, argv,
ent.objects, ent.nr);
result = diff_result_code(&rev.diffopt, result);
if (1 < rev.diffopt.skip_stat_unmatch)
refresh_index_quietly();
return result;
}
int verify_bundle(struct bundle_header *header, int verbose)
{
/*
* Do fast check, then if any prereqs are missing then go line by line
* to be verbose about the errors
*/
struct ref_list *p = &header->prerequisites;
struct rev_info revs;
const char *argv[] = {NULL, "--all", NULL};
struct object_array refs;
struct commit *commit;
int i, ret = 0, req_nr;
const char *message = "Repository lacks these prerequisite commits:";
init_revisions(&revs, NULL);
for (i = 0; i < p->nr; i++) {
struct ref_list_entry *e = p->list + i;
struct object *o = parse_object(e->sha1);
if (o) {
o->flags |= PREREQ_MARK;
add_pending_object(&revs, o, e->name);
continue;
}
if (++ret == 1)
error("%s", message);
error("%s %s", sha1_to_hex(e->sha1), e->name);
}
if (revs.pending.nr != p->nr)
return ret;
req_nr = revs.pending.nr;
setup_revisions(2, argv, &revs, NULL);
memset(&refs, 0, sizeof(struct object_array));
for (i = 0; i < revs.pending.nr; i++) {
struct object_array_entry *e = revs.pending.objects + i;
add_object_array(e->item, e->name, &refs);
}
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
i = req_nr;
while (i && (commit = get_revision(&revs)))
if (commit->object.flags & PREREQ_MARK)
i--;
for (i = 0; i < req_nr; i++)
if (!(refs.objects[i].item->flags & SHOWN)) {
if (++ret == 1)
error("%s", message);
error("%s %s", sha1_to_hex(refs.objects[i].item->sha1),
refs.objects[i].name);
}
for (i = 0; i < refs.nr; i++)
clear_commit_marks((struct commit *)refs.objects[i].item, -1);
if (verbose) {
struct ref_list *r;
r = &header->references;
printf("The bundle contains %d ref%s\n",
r->nr, (1 < r->nr) ? "s" : "");
list_refs(r, 0, NULL);
r = &header->prerequisites;
printf("The bundle requires these %d ref%s\n",
r->nr, (1 < r->nr) ? "s" : "");
list_refs(r, 0, NULL);
}
return ret;
}
int cmd_show(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct object_array_entry *objects;
int i, count, ret = 0;
git_config(git_log_config, NULL);
if (diff_use_color_default == -1)
diff_use_color_default = git_use_color_default;
init_revisions(&rev, prefix);
rev.diff = 1;
rev.combine_merges = 1;
rev.dense_combined_merges = 1;
rev.always_show_header = 1;
rev.ignore_merges = 0;
rev.no_walk = 1;
cmd_log_init(argc, argv, prefix, &rev);
count = rev.pending.nr;
objects = rev.pending.objects;
for (i = 0; i < count && !ret; i++) {
struct object *o = objects[i].item;
const char *name = objects[i].name;
switch (o->type) {
case OBJ_BLOB:
ret = show_object(o->sha1, 0, NULL);
break;
case OBJ_TAG: {
struct tag *t = (struct tag *)o;
if (rev.shown_one)
putchar('\n');
printf("%stag %s%s\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
t->tag,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
ret = show_object(o->sha1, 1, &rev);
rev.shown_one = 1;
if (ret)
break;
o = parse_object(t->tagged->sha1);
if (!o)
ret = error("Could not read object %s",
sha1_to_hex(t->tagged->sha1));
objects[i].item = o;
i--;
break;
}
case OBJ_TREE:
if (rev.shown_one)
putchar('\n');
printf("%stree %s%s\n\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
name,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
read_tree_recursive((struct tree *)o, "", 0, 0, NULL,
show_tree_object, NULL);
rev.shown_one = 1;
break;
case OBJ_COMMIT:
rev.pending.nr = rev.pending.alloc = 0;
rev.pending.objects = NULL;
add_object_array(o, name, &rev.pending);
ret = cmd_log_walk(&rev);
break;
default:
ret = error("Unknown type: %d", o->type);
}
}
free(objects);
return ret;
}
int cmd_show(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct object_array_entry *objects;
struct setup_revision_opt opt;
struct pathspec match_all;
int i, count, ret = 0;
git_config(git_log_config, NULL);
init_pathspec(&match_all, NULL);
init_revisions(&rev, prefix);
rev.diff = 1;
rev.always_show_header = 1;
rev.no_walk = 1;
rev.diffopt.stat_width = -1; /* Scale to real terminal size */
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
opt.tweak = show_rev_tweak_rev;
cmd_log_init(argc, argv, prefix, &rev, &opt);
if (!rev.no_walk)
return cmd_log_walk(&rev);
count = rev.pending.nr;
objects = rev.pending.objects;
for (i = 0; i < count && !ret; i++) {
struct object *o = objects[i].item;
const char *name = objects[i].name;
switch (o->type) {
case OBJ_BLOB:
ret = show_blob_object(o->sha1, NULL);
break;
case OBJ_TAG: {
struct tag *t = (struct tag *)o;
if (rev.shown_one)
putchar('\n');
printf("%stag %s%s\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
t->tag,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
ret = show_tag_object(o->sha1, &rev);
rev.shown_one = 1;
if (ret)
break;
o = parse_object(t->tagged->sha1);
if (!o)
ret = error(_("Could not read object %s"),
sha1_to_hex(t->tagged->sha1));
objects[i].item = o;
i--;
break;
}
case OBJ_TREE:
if (rev.shown_one)
putchar('\n');
printf("%stree %s%s\n\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
name,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
read_tree_recursive((struct tree *)o, "", 0, 0, &match_all,
show_tree_object, NULL);
rev.shown_one = 1;
break;
case OBJ_COMMIT:
rev.pending.nr = rev.pending.alloc = 0;
rev.pending.objects = NULL;
add_object_array(o, name, &rev.pending);
ret = cmd_log_walk(&rev);
break;
default:
ret = error(_("Unknown type: %d"), o->type);
}
}
free(objects);
return ret;
}
int cmd_name_rev(int argc, const char **argv, const char *prefix)
{
struct object_array revs = { 0, 0, NULL };
int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0;
struct name_ref_data data = { 0, 0, NULL };
struct option opts[] = {
OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"),
OPT_BOOLEAN(0, "tags", &data.tags_only, "only use tags to name the commits"),
OPT_STRING(0, "refs", &data.ref_filter, "pattern",
"only use refs matching <pattern>"),
OPT_GROUP(""),
OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"),
OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"),
OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"),
OPT_BOOLEAN(0, "always", &always,
"show abbreviated commit object as fallback"),
OPT_END(),
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0);
if (!!all + !!transform_stdin + !!argc > 1) {
error("Specify either a list, or --all, not both!");
usage_with_options(name_rev_usage, opts);
}
if (all || transform_stdin)
cutoff = 0;
for (; argc; argc--, argv++) {
unsigned char sha1[20];
struct object *o;
struct commit *commit;
if (get_sha1(*argv, sha1)) {
fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
*argv);
continue;
}
o = deref_tag(parse_object(sha1), *argv, 0);
if (!o || o->type != OBJ_COMMIT) {
fprintf(stderr, "Could not get commit for %s. Skipping.\n",
*argv);
continue;
}
commit = (struct commit *)o;
if (cutoff > commit->date)
cutoff = commit->date;
add_object_array((struct object *)commit, *argv, &revs);
}
if (cutoff)
cutoff = cutoff - CUTOFF_DATE_SLOP;
for_each_ref(name_ref, &data);
if (transform_stdin) {
char buffer[2048];
while (!feof(stdin)) {
char *p = fgets(buffer, sizeof(buffer), stdin);
if (!p)
break;
name_rev_line(p, &data);
}
} else if (all) {
int i, max;
max = get_max_object_index();
for (i = 0; i < max; i++) {
struct object *obj = get_indexed_object(i);
if (!obj)
continue;
show_name(obj, NULL,
always, allow_undefined, data.name_only);
}
} else {
int i;
for (i = 0; i < revs.nr; i++)
show_name(revs.objects[i].item, revs.objects[i].name,
always, allow_undefined, data.name_only);
}
return 0;
}
int cmd_grep(int argc, const char **argv, const char *prefix)
{
int hit = 0;
int cached = 0;
int seen_dashdash = 0;
struct grep_opt opt;
struct object_array list = { 0, 0, NULL };
const char **paths = NULL;
int i;
memset(&opt, 0, sizeof(opt));
opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
opt.relative = 1;
opt.pathname = 1;
opt.pattern_tail = &opt.pattern_list;
opt.regflags = REG_NEWLINE;
/*
* If there is no -- then the paths must exist in the working
* tree. If there is no explicit pattern specified with -e or
* -f, we take the first unrecognized non option to be the
* pattern, but then what follows it must be zero or more
* valid refs up to the -- (if exists), and then existing
* paths. If there is an explicit pattern, then the first
* unrecognized non option is the beginning of the refs list
* that continues up to the -- (if exists), and then paths.
*/
while (1 < argc) {
const char *arg = argv[1];
argc--; argv++;
if (!strcmp("--cached", arg)) {
cached = 1;
continue;
}
if (!strcmp("--no-ext-grep", arg)) {
builtin_grep = 1;
continue;
}
if (!strcmp("-a", arg) ||
!strcmp("--text", arg)) {
opt.binary = GREP_BINARY_TEXT;
continue;
}
if (!strcmp("-i", arg) ||
!strcmp("--ignore-case", arg)) {
opt.regflags |= REG_ICASE;
continue;
}
if (!strcmp("-I", arg)) {
opt.binary = GREP_BINARY_NOMATCH;
continue;
}
if (!strcmp("-v", arg) ||
!strcmp("--invert-match", arg)) {
opt.invert = 1;
continue;
}
if (!strcmp("-E", arg) ||
!strcmp("--extended-regexp", arg)) {
opt.regflags |= REG_EXTENDED;
continue;
}
if (!strcmp("-F", arg) ||
!strcmp("--fixed-strings", arg)) {
opt.fixed = 1;
continue;
}
if (!strcmp("-G", arg) ||
!strcmp("--basic-regexp", arg)) {
opt.regflags &= ~REG_EXTENDED;
continue;
}
if (!strcmp("-n", arg)) {
opt.linenum = 1;
continue;
}
if (!strcmp("-h", arg)) {
opt.pathname = 0;
continue;
}
if (!strcmp("-H", arg)) {
opt.pathname = 1;
continue;
}
if (!strcmp("-l", arg) ||
!strcmp("--name-only", arg) ||
!strcmp("--files-with-matches", arg)) {
opt.name_only = 1;
continue;
}
if (!strcmp("-L", arg) ||
!strcmp("--files-without-match", arg)) {
opt.unmatch_name_only = 1;
continue;
}
if (!strcmp("-z", arg) ||
!strcmp("--null", arg)) {
opt.null_following_name = 1;
continue;
}
if (!strcmp("-c", arg) ||
!strcmp("--count", arg)) {
opt.count = 1;
continue;
}
if (!strcmp("-w", arg) ||
!strcmp("--word-regexp", arg)) {
opt.word_regexp = 1;
continue;
}
if (!prefixcmp(arg, "-A") ||
!prefixcmp(arg, "-B") ||
!prefixcmp(arg, "-C") ||
(arg[0] == '-' && '1' <= arg[1] && arg[1] <= '9')) {
unsigned num;
const char *scan;
switch (arg[1]) {
case 'A': case 'B': case 'C':
if (!arg[2]) {
if (argc <= 1)
die(emsg_missing_context_len);
scan = *++argv;
argc--;
}
else
scan = arg + 2;
break;
default:
scan = arg + 1;
break;
}
if (strtoul_ui(scan, 10, &num))
die(emsg_invalid_context_len, scan);
switch (arg[1]) {
case 'A':
opt.post_context = num;
break;
default:
case 'C':
opt.post_context = num;
case 'B':
opt.pre_context = num;
break;
}
continue;
}
if (!strcmp("-f", arg)) {
FILE *patterns;
int lno = 0;
char buf[1024];
if (argc <= 1)
die(emsg_missing_argument, arg);
patterns = fopen(argv[1], "r");
if (!patterns)
die("'%s': %s", argv[1], strerror(errno));
while (fgets(buf, sizeof(buf), patterns)) {
int len = strlen(buf);
if (len && buf[len-1] == '\n')
buf[len-1] = 0;
/* ignore empty line like grep does */
if (!buf[0])
continue;
append_grep_pattern(&opt, xstrdup(buf),
argv[1], ++lno,
GREP_PATTERN);
}
fclose(patterns);
argv++;
argc--;
continue;
}
if (!strcmp("--not", arg)) {
append_grep_pattern(&opt, arg, "command line", 0,
GREP_NOT);
continue;
}
if (!strcmp("--and", arg)) {
append_grep_pattern(&opt, arg, "command line", 0,
GREP_AND);
continue;
}
if (!strcmp("--or", arg))
continue; /* no-op */
if (!strcmp("(", arg)) {
append_grep_pattern(&opt, arg, "command line", 0,
GREP_OPEN_PAREN);
continue;
}
if (!strcmp(")", arg)) {
append_grep_pattern(&opt, arg, "command line", 0,
GREP_CLOSE_PAREN);
continue;
}
if (!strcmp("--all-match", arg)) {
opt.all_match = 1;
continue;
}
if (!strcmp("-e", arg)) {
if (1 < argc) {
append_grep_pattern(&opt, argv[1],
"-e option", 0,
GREP_PATTERN);
argv++;
argc--;
continue;
}
die(emsg_missing_argument, arg);
}
if (!strcmp("--full-name", arg)) {
opt.relative = 0;
continue;
}
if (!strcmp("--", arg)) {
/* later processing wants to have this at argv[1] */
argv--;
argc++;
break;
}
if (*arg == '-')
usage(builtin_grep_usage);
/* First unrecognized non-option token */
if (!opt.pattern_list) {
append_grep_pattern(&opt, arg, "command line", 0,
GREP_PATTERN);
break;
}
else {
/* We are looking at the first path or rev;
* it is found at argv[1] after leaving the
* loop.
*/
argc++; argv--;
break;
}
}
if (!opt.pattern_list)
die("no pattern given.");
if ((opt.regflags != REG_NEWLINE) && opt.fixed)
die("cannot mix --fixed-strings and regexp");
compile_grep_patterns(&opt);
/* Check revs and then paths */
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
unsigned char sha1[20];
/* Is it a rev? */
if (!get_sha1(arg, sha1)) {
struct object *object = parse_object(sha1);
if (!object)
die("bad object %s", arg);
add_object_array(object, arg, &list);
continue;
}
if (!strcmp(arg, "--")) {
i++;
seen_dashdash = 1;
}
break;
}
/* The rest are paths */
if (!seen_dashdash) {
int j;
for (j = i; j < argc; j++)
verify_filename(prefix, argv[j]);
}
if (i < argc) {
paths = get_pathspec(prefix, argv + i);
if (opt.prefix_length && opt.relative) {
/* Make sure we do not get outside of paths */
for (i = 0; paths[i]; i++)
if (strncmp(prefix, paths[i], opt.prefix_length))
die("git grep: cannot generate relative filenames containing '..'");
}
}
else if (prefix) {
paths = xcalloc(2, sizeof(const char *));
paths[0] = prefix;
paths[1] = NULL;
}
if (!list.nr) {
if (!cached)
setup_work_tree();
return !grep_cache(&opt, paths, cached);
}
if (cached)
die("both --cached and trees are given.");
for (i = 0; i < list.nr; i++) {
struct object *real_obj;
real_obj = deref_tag(list.objects[i].item, NULL, 0);
if (grep_object(&opt, paths, real_obj, list.objects[i].name))
hit = 1;
}
free_grep_patterns(&opt);
return !hit;
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
int depth = 0;
int has_non_tip = 0;
timestamp_t deepen_since = 0;
int deepen_rev_list = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
struct object_id oid_buf;
char *line = packet_read_line(0, NULL);
const char *arg;
reset_timeout();
if (!line)
break;
if (process_shallow(line, &shallows))
continue;
if (process_deepen(line, &depth))
continue;
if (process_deepen_since(line, &deepen_since, &deepen_rev_list))
continue;
if (process_deepen_not(line, &deepen_not, &deepen_rev_list))
continue;
if (skip_prefix(line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
parse_list_objects_filter(&filter_options, arg);
continue;
}
if (!skip_prefix(line, "want ", &arg) ||
parse_oid_hex(arg, &oid_buf, &features))
die("git upload-pack: protocol error, "
"expected to get object ID, not '%s'", line);
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
if (allow_filter && parse_feature_request(features, "filter"))
filter_capability_requested = 1;
o = parse_object(&oid_buf);
if (!o) {
packet_write_fmt(1,
"ERR upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
}
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1
|| is_our_ref(o)))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
if (send_shallow_list(depth, deepen_rev_list, deepen_since,
&deepen_not, &shallows))
packet_flush(1);
object_array_clear(&shallows);
}
static struct commit *get_revision_internal(struct rev_info *revs)
{
struct commit *c = NULL;
struct commit_list *l;
if (revs->boundary == 2) {
/*
* All of the normal commits have already been returned,
* and we are now returning boundary commits.
* create_boundary_commit_list() has populated
* revs->commits with the remaining commits to return.
*/
c = pop_commit(&revs->commits);
if (c)
c->object.flags |= SHOWN;
return c;
}
/*
* Now pick up what they want to give us
*/
c = get_revision_1(revs);
if (c) {
while (0 < revs->skip_count) {
revs->skip_count--;
c = get_revision_1(revs);
if (!c)
break;
}
}
/*
* Check the max_count.
*/
switch (revs->max_count) {
case -1:
break;
case 0:
c = NULL;
break;
default:
revs->max_count--;
}
if (c)
c->object.flags |= SHOWN;
if (!revs->boundary) {
return c;
}
if (!c) {
/*
* get_revision_1() runs out the commits, and
* we are done computing the boundaries.
* switch to boundary commits output mode.
*/
revs->boundary = 2;
/*
* Update revs->commits to contain the list of
* boundary commits.
*/
create_boundary_commit_list(revs);
return get_revision_internal(revs);
}
/*
* boundary commits are the commits that are parents of the
* ones we got from get_revision_1() but they themselves are
* not returned from get_revision_1(). Before returning
* 'c', we need to mark its parents that they could be boundaries.
*/
for (l = c->parents; l; l = l->next) {
struct object *p;
p = &(l->item->object);
if (p->flags & (CHILD_SHOWN | SHOWN))
continue;
p->flags |= CHILD_SHOWN;
gc_boundary(&revs->boundary_commits);
add_object_array(p, NULL, &revs->boundary_commits);
}
return c;
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
int depth = 0;
int has_non_tip = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
unsigned char sha1_buf[20];
char *line = packet_read_line(0, NULL);
reset_timeout();
if (!line)
break;
if (starts_with(line, "shallow ")) {
unsigned char sha1[20];
struct object *object;
if (get_sha1_hex(line + 8, sha1))
die("invalid shallow line: %s", line);
object = parse_object(sha1);
if (!object)
continue;
if (object->type != OBJ_COMMIT)
die("invalid shallow object %s", sha1_to_hex(sha1));
if (!(object->flags & CLIENT_SHALLOW)) {
object->flags |= CLIENT_SHALLOW;
add_object_array(object, NULL, &shallows);
}
continue;
}
if (starts_with(line, "deepen ")) {
char *end;
depth = strtol(line + 7, &end, 0);
if (end == line + 7 || depth <= 0)
die("Invalid deepen: %s", line);
continue;
}
if (!starts_with(line, "want ") ||
get_sha1_hex(line+5, sha1_buf))
die("git upload-pack: protocol error, "
"expected to get sha, not '%s'", line);
features = line + 45;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
o = parse_object(sha1_buf);
if (!o)
die("git upload-pack: not our ref %s",
sha1_to_hex(sha1_buf));
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!is_our_ref(o))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && shallows.nr == 0)
return;
if (depth > 0) {
struct commit_list *result = NULL, *backup = NULL;
int i;
if (depth == INFINITE_DEPTH && !is_repository_shallow())
for (i = 0; i < shallows.nr; i++) {
struct object *object = shallows.objects[i].item;
object->flags |= NOT_SHALLOW;
}
else
backup = result =
get_shallow_commits(&want_obj, depth,
SHALLOW, NOT_SHALLOW);
while (result) {
struct object *object = &result->item->object;
if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
packet_write(1, "shallow %s",
sha1_to_hex(object->sha1));
register_shallow(object->sha1);
shallow_nr++;
}
result = result->next;
}
free_commit_list(backup);
for (i = 0; i < shallows.nr; i++) {
struct object *object = shallows.objects[i].item;
if (object->flags & NOT_SHALLOW) {
struct commit_list *parents;
packet_write(1, "unshallow %s",
sha1_to_hex(object->sha1));
object->flags &= ~CLIENT_SHALLOW;
/* make sure the real parents are parsed */
unregister_shallow(object->sha1);
object->parsed = 0;
parse_commit_or_die((struct commit *)object);
parents = ((struct commit *)object)->parents;
while (parents) {
add_object_array(&parents->item->object,
NULL, &want_obj);
parents = parents->next;
}
add_object_array(object, NULL, &extra_edge_obj);
}
/* make sure commit traversal conforms to client */
register_shallow(object->sha1);
}
packet_flush(1);
} else
if (shallows.nr > 0) {
int i;
for (i = 0; i < shallows.nr; i++)
register_shallow(shallows.objects[i].item->sha1);
}
shallow_nr += shallows.nr;
free(shallows.objects);
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
int depth = 0;
int has_non_tip = 0;
timestamp_t deepen_since = 0;
int deepen_rev_list = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
struct object_id oid_buf;
char *line = packet_read_line(0, NULL);
const char *arg;
reset_timeout();
if (!line)
break;
if (skip_prefix(line, "shallow ", &arg)) {
struct object_id oid;
struct object *object;
if (get_oid_hex(arg, &oid))
die("invalid shallow line: %s", line);
object = parse_object(&oid);
if (!object)
continue;
if (object->type != OBJ_COMMIT)
die("invalid shallow object %s", oid_to_hex(&oid));
if (!(object->flags & CLIENT_SHALLOW)) {
object->flags |= CLIENT_SHALLOW;
add_object_array(object, NULL, &shallows);
}
continue;
}
if (skip_prefix(line, "deepen ", &arg)) {
char *end = NULL;
depth = strtol(arg, &end, 0);
if (!end || *end || depth <= 0)
die("Invalid deepen: %s", line);
continue;
}
if (skip_prefix(line, "deepen-since ", &arg)) {
char *end = NULL;
deepen_since = parse_timestamp(arg, &end, 0);
if (!end || *end || !deepen_since ||
/* revisions.c's max_age -1 is special */
deepen_since == -1)
die("Invalid deepen-since: %s", line);
deepen_rev_list = 1;
continue;
}
if (skip_prefix(line, "deepen-not ", &arg)) {
char *ref = NULL;
struct object_id oid;
if (expand_ref(arg, strlen(arg), &oid, &ref) != 1)
die("git upload-pack: ambiguous deepen-not: %s", line);
string_list_append(&deepen_not, ref);
free(ref);
deepen_rev_list = 1;
continue;
}
if (skip_prefix(line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
parse_list_objects_filter(&filter_options, arg);
continue;
}
if (!skip_prefix(line, "want ", &arg) ||
get_oid_hex(arg, &oid_buf))
die("git upload-pack: protocol error, "
"expected to get sha, not '%s'", line);
features = arg + 40;
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
if (allow_filter && parse_feature_request(features, "filter"))
filter_capability_requested = 1;
o = parse_object(&oid_buf);
if (!o) {
packet_write_fmt(1,
"ERR upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
}
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1
|| is_our_ref(o)))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
if (depth > 0 && deepen_rev_list)
die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together");
if (depth > 0)
deepen(depth, deepen_relative, &shallows);
else if (deepen_rev_list) {
struct argv_array av = ARGV_ARRAY_INIT;
int i;
argv_array_push(&av, "rev-list");
if (deepen_since)
argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since);
if (deepen_not.nr) {
argv_array_push(&av, "--not");
for (i = 0; i < deepen_not.nr; i++) {
struct string_list_item *s = deepen_not.items + i;
argv_array_push(&av, s->string);
}
argv_array_push(&av, "--not");
}
for (i = 0; i < want_obj.nr; i++) {
struct object *o = want_obj.objects[i].item;
argv_array_push(&av, oid_to_hex(&o->oid));
}
deepen_by_rev_list(av.argc, av.argv, &shallows);
argv_array_clear(&av);
}
else
if (shallows.nr > 0) {
int i;
for (i = 0; i < shallows.nr; i++)
register_shallow(&shallows.objects[i].item->oid);
}
shallow_nr += shallows.nr;
object_array_clear(&shallows);
}
int cmd_grep(int argc, const char **argv, const char *prefix)
{
int hit = 0;
int cached = 0;
int seen_dashdash = 0;
int external_grep_allowed__ignored;
struct grep_opt opt;
struct object_array list = { 0, 0, NULL };
const char **paths = NULL;
int i;
int dummy;
int nongit = 0, use_index = 1;
struct option options[] = {
OPT_BOOLEAN(0, "cached", &cached,
"search in index instead of in the work tree"),
OPT_BOOLEAN(0, "index", &use_index,
"--no-index finds in contents not managed by git"),
OPT_GROUP(""),
OPT_BOOLEAN('v', "invert-match", &opt.invert,
"show non-matching lines"),
OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
"case insensitive matching"),
OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
"match patterns only at word boundaries"),
OPT_SET_INT('a', "text", &opt.binary,
"process binary files as text", GREP_BINARY_TEXT),
OPT_SET_INT('I', NULL, &opt.binary,
"don't match patterns in binary files",
GREP_BINARY_NOMATCH),
{ OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
"descend at most <depth> levels", PARSE_OPT_NONEG,
NULL, 1 },
OPT_GROUP(""),
OPT_BIT('E', "extended-regexp", &opt.regflags,
"use extended POSIX regular expressions", REG_EXTENDED),
OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
"use basic POSIX regular expressions (default)",
REG_EXTENDED),
OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
"interpret patterns as fixed strings"),
OPT_GROUP(""),
OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
OPT_NEGBIT(0, "full-name", &opt.relative,
"show filenames relative to top directory", 1),
OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
"show only filenames instead of matching lines"),
OPT_BOOLEAN(0, "name-only", &opt.name_only,
"synonym for --files-with-matches"),
OPT_BOOLEAN('L', "files-without-match",
&opt.unmatch_name_only,
"show only the names of files without match"),
OPT_BOOLEAN('z', "null", &opt.null_following_name,
"print NUL after filenames"),
OPT_BOOLEAN('c', "count", &opt.count,
"show the number of matches instead of matching lines"),
OPT_SET_INT(0, "color", &opt.color, "highlight matches", 1),
OPT_GROUP(""),
OPT_CALLBACK('C', NULL, &opt, "n",
"show <n> context lines before and after matches",
context_callback),
OPT_INTEGER('B', NULL, &opt.pre_context,
"show <n> context lines before matches"),
OPT_INTEGER('A', NULL, &opt.post_context,
"show <n> context lines after matches"),
OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
context_callback),
OPT_BOOLEAN('p', "show-function", &opt.funcname,
"show a line with the function name before matches"),
OPT_GROUP(""),
OPT_CALLBACK('f', NULL, &opt, "file",
"read patterns from file", file_callback),
{ OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
"match <pattern>", PARSE_OPT_NONEG, pattern_callback },
{ OPTION_CALLBACK, 0, "and", &opt, NULL,
"combine patterns specified with -e",
PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
OPT_BOOLEAN(0, "or", &dummy, ""),
{ OPTION_CALLBACK, 0, "not", &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
{ OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
open_callback },
{ OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
close_callback },
OPT_BOOLEAN('q', "quiet", &opt.status_only,
"indicate hit with exit status without output"),
OPT_BOOLEAN(0, "all-match", &opt.all_match,
"show only matches from files that match all patterns"),
OPT_GROUP(""),
OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
"allow calling of grep(1) (ignored by this build)"),
{ OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
OPT_END()
};
prefix = setup_git_directory_gently(&nongit);
/*
* 'git grep -h', unlike 'git grep -h <pattern>', is a request
* to show usage information and exit.
*/
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(grep_usage, options);
memset(&opt, 0, sizeof(opt));
opt.prefix = prefix;
opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
opt.relative = 1;
opt.pathname = 1;
opt.pattern_tail = &opt.pattern_list;
opt.regflags = REG_NEWLINE;
opt.max_depth = -1;
strcpy(opt.color_match, GIT_COLOR_RED GIT_COLOR_BOLD);
opt.color = -1;
git_config(grep_config, &opt);
if (opt.color == -1)
opt.color = git_use_color_default;
/*
* If there is no -- then the paths must exist in the working
* tree. If there is no explicit pattern specified with -e or
* -f, we take the first unrecognized non option to be the
* pattern, but then what follows it must be zero or more
* valid refs up to the -- (if exists), and then existing
* paths. If there is an explicit pattern, then the first
* unrecognized non option is the beginning of the refs list
* that continues up to the -- (if exists), and then paths.
*/
argc = parse_options(argc, argv, prefix, options, grep_usage,
PARSE_OPT_KEEP_DASHDASH |
PARSE_OPT_STOP_AT_NON_OPTION |
PARSE_OPT_NO_INTERNAL_HELP);
if (use_index && nongit)
/* die the same way as if we did it at the beginning */
setup_git_directory();
/*
* skip a -- separator; we know it cannot be
* separating revisions from pathnames if
* we haven't even had any patterns yet
*/
if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
argv++;
argc--;
}
/* First unrecognized non-option token */
if (argc > 0 && !opt.pattern_list) {
append_grep_pattern(&opt, argv[0], "command line", 0,
GREP_PATTERN);
argv++;
argc--;
}
if (!opt.pattern_list)
die("no pattern given.");
if (!opt.fixed && opt.ignore_case)
opt.regflags |= REG_ICASE;
if ((opt.regflags != REG_NEWLINE) && opt.fixed)
die("cannot mix --fixed-strings and regexp");
#ifndef NO_PTHREADS
if (online_cpus() == 1 || !grep_threads_ok(&opt))
use_threads = 0;
if (use_threads)
start_threads(&opt);
#else
use_threads = 0;
#endif
compile_grep_patterns(&opt);
/* Check revs and then paths */
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
unsigned char sha1[20];
/* Is it a rev? */
if (!get_sha1(arg, sha1)) {
struct object *object = parse_object(sha1);
if (!object)
die("bad object %s", arg);
add_object_array(object, arg, &list);
continue;
}
if (!strcmp(arg, "--")) {
i++;
seen_dashdash = 1;
}
break;
}
/* The rest are paths */
if (!seen_dashdash) {
int j;
for (j = i; j < argc; j++)
verify_filename(prefix, argv[j]);
}
if (i < argc)
paths = get_pathspec(prefix, argv + i);
else if (prefix) {
paths = xcalloc(2, sizeof(const char *));
paths[0] = prefix;
paths[1] = NULL;
}
if (!use_index) {
int hit;
if (cached)
die("--cached cannot be used with --no-index.");
if (list.nr)
die("--no-index cannot be used with revs.");
hit = grep_directory(&opt, paths);
if (use_threads)
hit |= wait_all();
return !hit;
}
if (!list.nr) {
int hit;
if (!cached)
setup_work_tree();
hit = grep_cache(&opt, paths, cached);
if (use_threads)
hit |= wait_all();
return !hit;
}
if (cached)
die("both --cached and trees are given.");
for (i = 0; i < list.nr; i++) {
struct object *real_obj;
real_obj = deref_tag(list.objects[i].item, NULL, 0);
if (grep_object(&opt, paths, real_obj, list.objects[i].name)) {
hit = 1;
if (opt.status_only)
break;
}
}
if (use_threads)
hit |= wait_all();
free_grep_patterns(&opt);
return !hit;
}
static int commit_is_complete(struct commit *commit)
{
struct object_array study;
struct object_array found;
int is_incomplete = 0;
int i;
/* early return */
if (commit->object.flags & SEEN)
return 1;
if (commit->object.flags & INCOMPLETE)
return 0;
/*
* Find all commits that are reachable and are not marked as
* SEEN. Then make sure the trees and blobs contained are
* complete. After that, mark these commits also as SEEN.
* If some of the objects that are needed to complete this
* commit are missing, mark this commit as INCOMPLETE.
*/
memset(&study, 0, sizeof(study));
memset(&found, 0, sizeof(found));
add_object_array(&commit->object, NULL, &study);
add_object_array(&commit->object, NULL, &found);
commit->object.flags |= STUDYING;
while (study.nr) {
struct commit *c;
struct commit_list *parent;
c = (struct commit *)object_array_pop(&study);
if (!c->object.parsed && !parse_object(the_repository, &c->object.oid))
c->object.flags |= INCOMPLETE;
if (c->object.flags & INCOMPLETE) {
is_incomplete = 1;
break;
}
else if (c->object.flags & SEEN)
continue;
for (parent = c->parents; parent; parent = parent->next) {
struct commit *p = parent->item;
if (p->object.flags & STUDYING)
continue;
p->object.flags |= STUDYING;
add_object_array(&p->object, NULL, &study);
add_object_array(&p->object, NULL, &found);
}
}
if (!is_incomplete) {
/*
* make sure all commits in "found" array have all the
* necessary objects.
*/
for (i = 0; i < found.nr; i++) {
struct commit *c =
(struct commit *)found.objects[i].item;
if (!tree_is_complete(get_commit_tree_oid(c))) {
is_incomplete = 1;
c->object.flags |= INCOMPLETE;
}
}
if (!is_incomplete) {
/* mark all found commits as complete, iow SEEN */
for (i = 0; i < found.nr; i++)
found.objects[i].item->flags |= SEEN;
}
}
/* clear flags from the objects we traversed */
for (i = 0; i < found.nr; i++)
found.objects[i].item->flags &= ~STUDYING;
if (is_incomplete)
commit->object.flags |= INCOMPLETE;
else {
/*
* If we come here, we have (1) traversed the ancestry chain
* from the "commit" until we reach SEEN commits (which are
* known to be complete), and (2) made sure that the commits
* encountered during the above traversal refer to trees that
* are complete. Which means that we know *all* the commits
* we have seen during this process are complete.
*/
for (i = 0; i < found.nr; i++)
found.objects[i].item->flags |= SEEN;
}
/* free object arrays */
object_array_clear(&study);
object_array_clear(&found);
return !is_incomplete;
}
int cmd_grep(int argc, const char **argv, const char *prefix)
{
int hit = 0;
int cached = 0, untracked = 0, opt_exclude = -1;
int seen_dashdash = 0;
int external_grep_allowed__ignored;
const char *show_in_pager = NULL, *default_pager = "dummy";
struct grep_opt opt;
struct object_array list = OBJECT_ARRAY_INIT;
const char **paths = NULL;
struct pathspec pathspec;
struct string_list path_list = STRING_LIST_INIT_NODUP;
int i;
int dummy;
int use_index = 1;
int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED;
struct option options[] = {
OPT_BOOLEAN(0, "cached", &cached,
N_("search in index instead of in the work tree")),
OPT_NEGBIT(0, "no-index", &use_index,
N_("find in contents not managed by git"), 1),
OPT_BOOLEAN(0, "untracked", &untracked,
N_("search in both tracked and untracked files")),
OPT_SET_INT(0, "exclude-standard", &opt_exclude,
N_("search also in ignored files"), 1),
OPT_GROUP(""),
OPT_BOOLEAN('v', "invert-match", &opt.invert,
N_("show non-matching lines")),
OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
N_("case insensitive matching")),
OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
N_("match patterns only at word boundaries")),
OPT_SET_INT('a', "text", &opt.binary,
N_("process binary files as text"), GREP_BINARY_TEXT),
OPT_SET_INT('I', NULL, &opt.binary,
N_("don't match patterns in binary files"),
GREP_BINARY_NOMATCH),
{ OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"),
N_("descend at most <depth> levels"), PARSE_OPT_NONEG,
NULL, 1 },
OPT_GROUP(""),
OPT_SET_INT('E', "extended-regexp", &pattern_type_arg,
N_("use extended POSIX regular expressions"),
GREP_PATTERN_TYPE_ERE),
OPT_SET_INT('G', "basic-regexp", &pattern_type_arg,
N_("use basic POSIX regular expressions (default)"),
GREP_PATTERN_TYPE_BRE),
OPT_SET_INT('F', "fixed-strings", &pattern_type_arg,
N_("interpret patterns as fixed strings"),
GREP_PATTERN_TYPE_FIXED),
OPT_SET_INT('P', "perl-regexp", &pattern_type_arg,
N_("use Perl-compatible regular expressions"),
GREP_PATTERN_TYPE_PCRE),
OPT_GROUP(""),
OPT_BOOLEAN('n', "line-number", &opt.linenum, N_("show line numbers")),
OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1),
OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1),
OPT_NEGBIT(0, "full-name", &opt.relative,
N_("show filenames relative to top directory"), 1),
OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
N_("show only filenames instead of matching lines")),
OPT_BOOLEAN(0, "name-only", &opt.name_only,
N_("synonym for --files-with-matches")),
OPT_BOOLEAN('L', "files-without-match",
&opt.unmatch_name_only,
N_("show only the names of files without match")),
OPT_BOOLEAN('z', "null", &opt.null_following_name,
N_("print NUL after filenames")),
OPT_BOOLEAN('c', "count", &opt.count,
N_("show the number of matches instead of matching lines")),
OPT__COLOR(&opt.color, N_("highlight matches")),
OPT_BOOLEAN(0, "break", &opt.file_break,
N_("print empty line between matches from different files")),
OPT_BOOLEAN(0, "heading", &opt.heading,
N_("show filename only once above matches from same file")),
OPT_GROUP(""),
OPT_CALLBACK('C', "context", &opt, N_("n"),
N_("show <n> context lines before and after matches"),
context_callback),
OPT_INTEGER('B', "before-context", &opt.pre_context,
N_("show <n> context lines before matches")),
OPT_INTEGER('A', "after-context", &opt.post_context,
N_("show <n> context lines after matches")),
OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"),
context_callback),
OPT_BOOLEAN('p', "show-function", &opt.funcname,
N_("show a line with the function name before matches")),
OPT_BOOLEAN('W', "function-context", &opt.funcbody,
N_("show the surrounding function")),
OPT_GROUP(""),
OPT_CALLBACK('f', NULL, &opt, N_("file"),
N_("read patterns from file"), file_callback),
{ OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"),
N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback },
{ OPTION_CALLBACK, 0, "and", &opt, NULL,
N_("combine patterns specified with -e"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
OPT_BOOLEAN(0, "or", &dummy, ""),
{ OPTION_CALLBACK, 0, "not", &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
{ OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
open_callback },
{ OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
close_callback },
OPT__QUIET(&opt.status_only,
N_("indicate hit with exit status without output")),
OPT_BOOLEAN(0, "all-match", &opt.all_match,
N_("show only matches from files that match all patterns")),
{ OPTION_SET_INT, 0, "debug", &opt.debug, NULL,
N_("show parse tree for grep expression"),
PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 },
OPT_GROUP(""),
{ OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager,
N_("pager"), N_("show matching files in the pager"),
PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager },
OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
N_("allow calling of grep(1) (ignored by this build)")),
{ OPTION_CALLBACK, 0, "help-all", &options, NULL, N_("show usage"),
PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
OPT_END()
};
/*
* 'git grep -h', unlike 'git grep -h <pattern>', is a request
* to show usage information and exit.
*/
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(grep_usage, options);
init_grep_defaults();
git_config(grep_cmd_config, NULL);
grep_init(&opt, prefix);
/*
* If there is no -- then the paths must exist in the working
* tree. If there is no explicit pattern specified with -e or
* -f, we take the first unrecognized non option to be the
* pattern, but then what follows it must be zero or more
* valid refs up to the -- (if exists), and then existing
* paths. If there is an explicit pattern, then the first
* unrecognized non option is the beginning of the refs list
* that continues up to the -- (if exists), and then paths.
*/
argc = parse_options(argc, argv, prefix, options, grep_usage,
PARSE_OPT_KEEP_DASHDASH |
PARSE_OPT_STOP_AT_NON_OPTION |
PARSE_OPT_NO_INTERNAL_HELP);
grep_commit_pattern_type(pattern_type_arg, &opt);
if (use_index && !startup_info->have_repository)
/* die the same way as if we did it at the beginning */
setup_git_directory();
/*
* skip a -- separator; we know it cannot be
* separating revisions from pathnames if
* we haven't even had any patterns yet
*/
if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
argv++;
argc--;
}
/* First unrecognized non-option token */
if (argc > 0 && !opt.pattern_list) {
append_grep_pattern(&opt, argv[0], "command line", 0,
GREP_PATTERN);
argv++;
argc--;
}
if (show_in_pager == default_pager)
show_in_pager = git_pager(1);
if (show_in_pager) {
opt.color = 0;
opt.name_only = 1;
opt.null_following_name = 1;
opt.output_priv = &path_list;
opt.output = append_path;
string_list_append(&path_list, show_in_pager);
use_threads = 0;
}
if ((opt.binary & GREP_BINARY_NOMATCH))
use_threads = 0;
if (!opt.pattern_list)
die(_("no pattern given."));
if (!opt.fixed && opt.ignore_case)
opt.regflags |= REG_ICASE;
compile_grep_patterns(&opt);
/* Check revs and then paths */
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
unsigned char sha1[20];
/* Is it a rev? */
if (!get_sha1(arg, sha1)) {
struct object *object = parse_object(sha1);
if (!object)
die(_("bad object %s"), arg);
add_object_array(object, arg, &list);
continue;
}
if (!strcmp(arg, "--")) {
i++;
seen_dashdash = 1;
}
break;
}
#ifndef NO_PTHREADS
if (list.nr || cached || online_cpus() == 1)
use_threads = 0;
#else
use_threads = 0;
#endif
#ifndef NO_PTHREADS
if (use_threads) {
if (!(opt.name_only || opt.unmatch_name_only || opt.count)
&& (opt.pre_context || opt.post_context ||
opt.file_break || opt.funcbody))
skip_first_line = 1;
start_threads(&opt);
}
#endif
/* The rest are paths */
if (!seen_dashdash) {
int j;
for (j = i; j < argc; j++)
verify_filename(prefix, argv[j], j == i);
}
paths = get_pathspec(prefix, argv + i);
init_pathspec(&pathspec, paths);
pathspec.max_depth = opt.max_depth;
pathspec.recursive = 1;
if (show_in_pager && (cached || list.nr))
die(_("--open-files-in-pager only works on the worktree"));
if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) {
const char *pager = path_list.items[0].string;
int len = strlen(pager);
if (len > 4 && is_dir_sep(pager[len - 5]))
pager += len - 4;
if (opt.ignore_case && !strcmp("less", pager))
string_list_append(&path_list, "-i");
if (!strcmp("less", pager) || !strcmp("vi", pager)) {
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "+/%s%s",
strcmp("less", pager) ? "" : "*",
opt.pattern_list->pattern);
string_list_append(&path_list, buf.buf);
strbuf_detach(&buf, NULL);
}
}
if (!show_in_pager)
setup_pager();
if (!use_index && (untracked || cached))
die(_("--cached or --untracked cannot be used with --no-index."));
if (!use_index || untracked) {
int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude;
if (list.nr)
die(_("--no-index or --untracked cannot be used with revs."));
hit = grep_directory(&opt, &pathspec, use_exclude);
} else if (0 <= opt_exclude) {
die(_("--[no-]exclude-standard cannot be used for tracked contents."));
} else if (!list.nr) {
if (!cached)
setup_work_tree();
hit = grep_cache(&opt, &pathspec, cached);
} else {
if (cached)
die(_("both --cached and trees are given."));
hit = grep_objects(&opt, &pathspec, &list);
}
if (use_threads)
hit |= wait_all();
if (hit && show_in_pager)
run_pager(&opt, prefix);
free_grep_patterns(&opt);
return !hit;
}
/*
* on successful case, it's up to the caller to close cmd->out
*/
static int do_reachable_revlist(struct child_process *cmd,
struct object_array *src,
struct object_array *reachable)
{
static const char *argv[] = {
"rev-list", "--stdin", NULL,
};
struct object *o;
char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */
int i;
cmd->argv = argv;
cmd->git_cmd = 1;
cmd->no_stderr = 1;
cmd->in = -1;
cmd->out = -1;
/*
* If the next rev-list --stdin encounters an unknown commit,
* it terminates, which will cause SIGPIPE in the write loop
* below.
*/
sigchain_push(SIGPIPE, SIG_IGN);
if (start_command(cmd))
goto error;
namebuf[0] = '^';
namebuf[GIT_SHA1_HEXSZ + 1] = '\n';
for (i = get_max_object_index(); 0 < i; ) {
o = get_indexed_object(--i);
if (!o)
continue;
if (reachable && o->type == OBJ_COMMIT)
o->flags &= ~TMP_MARK;
if (!is_our_ref(o))
continue;
memcpy(namebuf + 1, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
if (write_in_full(cmd->in, namebuf, GIT_SHA1_HEXSZ + 2) < 0)
goto error;
}
namebuf[GIT_SHA1_HEXSZ] = '\n';
for (i = 0; i < src->nr; i++) {
o = src->objects[i].item;
if (is_our_ref(o)) {
if (reachable)
add_object_array(o, NULL, reachable);
continue;
}
if (reachable && o->type == OBJ_COMMIT)
o->flags |= TMP_MARK;
memcpy(namebuf, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
if (write_in_full(cmd->in, namebuf, GIT_SHA1_HEXSZ + 1) < 0)
goto error;
}
close(cmd->in);
cmd->in = -1;
sigchain_pop(SIGPIPE);
return 0;
error:
sigchain_pop(SIGPIPE);
if (cmd->in >= 0)
close(cmd->in);
if (cmd->out >= 0)
close(cmd->out);
return -1;
}
