[libgit2.git] / src / status.c

/*
 * Copyright (C) the libgit2 contributors. All rights reserved.
 *
 * This file is part of libgit2, distributed under the GNU GPL v2 with
 * a Linking Exception. For full terms see the included COPYING file.
 */

#include "common.h"
#include "git2.h"
#include "fileops.h"
#include "hash.h"
#include "vector.h"
#include "tree.h"
#include "status.h"
#include "git2/status.h"
#include "repository.h"
#include "ignore.h"
#include "index.h"

#include "git2/diff.h"
#include "diff.h"

static unsigned int index_delta2status(const git_diff_delta *head2idx)
{
	git_status_t st = GIT_STATUS_CURRENT;

	switch (head2idx->status) {
	case GIT_DELTA_ADDED:
	case GIT_DELTA_COPIED:
		st = GIT_STATUS_INDEX_NEW;
		break;
	case GIT_DELTA_DELETED:
		st = GIT_STATUS_INDEX_DELETED;
		break;
	case GIT_DELTA_MODIFIED:
		st = GIT_STATUS_INDEX_MODIFIED;
		break;
	case GIT_DELTA_RENAMED:
		st = GIT_STATUS_INDEX_RENAMED;

		if (!git_oid_equal(&head2idx->old_file.oid, &head2idx->new_file.oid))
			st |= GIT_STATUS_INDEX_MODIFIED;
		break;
	case GIT_DELTA_TYPECHANGE:
		st = GIT_STATUS_INDEX_TYPECHANGE;
		break;
	default:
		break;
	}

	return st;
}

static unsigned int workdir_delta2status(
	git_diff *diff, git_diff_delta *idx2wd)
{
	git_status_t st = GIT_STATUS_CURRENT;

	switch (idx2wd->status) {
	case GIT_DELTA_ADDED:
	case GIT_DELTA_COPIED:
	case GIT_DELTA_UNTRACKED:
		st = GIT_STATUS_WT_NEW;
		break;
	case GIT_DELTA_DELETED:
		st = GIT_STATUS_WT_DELETED;
		break;
	case GIT_DELTA_MODIFIED:
		st = GIT_STATUS_WT_MODIFIED;
		break;
	case GIT_DELTA_IGNORED:
		st = GIT_STATUS_IGNORED;
		break;
	case GIT_DELTA_RENAMED:
		st = GIT_STATUS_WT_RENAMED;

		if (!git_oid_equal(&idx2wd->old_file.oid, &idx2wd->new_file.oid)) {
			/* if OIDs don't match, we might need to calculate them now to
			 * discern between RENAMED vs RENAMED+MODIFED
			 */
			if (git_oid_iszero(&idx2wd->old_file.oid) &&
				diff->old_src == GIT_ITERATOR_TYPE_WORKDIR &&
				!git_diff__oid_for_file(
					diff->repo, idx2wd->old_file.path, idx2wd->old_file.mode,
					idx2wd->old_file.size, &idx2wd->old_file.oid))
			idx2wd->old_file.flags |= GIT_DIFF_FLAG_VALID_OID;

			if (git_oid_iszero(&idx2wd->new_file.oid) &&
				diff->new_src == GIT_ITERATOR_TYPE_WORKDIR &&
				!git_diff__oid_for_file(
					diff->repo, idx2wd->new_file.path, idx2wd->new_file.mode,
					idx2wd->new_file.size, &idx2wd->new_file.oid))
				idx2wd->new_file.flags |= GIT_DIFF_FLAG_VALID_OID;

			if (!git_oid_equal(&idx2wd->old_file.oid, &idx2wd->new_file.oid))
				st |= GIT_STATUS_WT_MODIFIED;
		}
		break;
	case GIT_DELTA_TYPECHANGE:
		st = GIT_STATUS_WT_TYPECHANGE;
		break;
	default:
		break;
	}

	return st;
}

static bool status_is_included(
	git_status_list *status,
	git_diff_delta *head2idx,
	git_diff_delta *idx2wd)
{
	if (!(status->opts.flags & GIT_STATUS_OPT_EXCLUDE_SUBMODULES))
		return 1;

	/* if excluding submodules and this is a submodule everywhere */
	if (head2idx) {
		if (head2idx->status != GIT_DELTA_ADDED &&
			head2idx->old_file.mode != GIT_FILEMODE_COMMIT)
			return 1;
		if (head2idx->status != GIT_DELTA_DELETED &&
			head2idx->new_file.mode != GIT_FILEMODE_COMMIT)
			return 1;
	}
	if (idx2wd) {
		if (idx2wd->status != GIT_DELTA_ADDED &&
			idx2wd->old_file.mode != GIT_FILEMODE_COMMIT)
			return 1;
		if (idx2wd->status != GIT_DELTA_DELETED &&
			idx2wd->new_file.mode != GIT_FILEMODE_COMMIT)
			return 1;
	}

	/* only get here if every valid mode is GIT_FILEMODE_COMMIT */
	return 0;
}

static git_status_t status_compute(
	git_status_list *status,
	git_diff_delta *head2idx,
	git_diff_delta *idx2wd)
{
	git_status_t st = GIT_STATUS_CURRENT;

	if (head2idx)
		st |= index_delta2status(head2idx);

	if (idx2wd)
		st |= workdir_delta2status(status->idx2wd, idx2wd);

	return st;
}

static int status_collect(
	git_diff_delta *head2idx,
	git_diff_delta *idx2wd,
	void *payload)
{
	git_status_list *status = payload;
	git_status_entry *status_entry;

	if (!status_is_included(status, head2idx, idx2wd))
		return 0;

	status_entry = git__malloc(sizeof(git_status_entry));
	GITERR_CHECK_ALLOC(status_entry);

	status_entry->status = status_compute(status, head2idx, idx2wd);
	status_entry->head_to_index = head2idx;
	status_entry->index_to_workdir = idx2wd;

	return git_vector_insert(&status->paired, status_entry);
}

GIT_INLINE(int) status_entry_cmp_base(
	const void *a,
	const void *b,
	int (*strcomp)(const char *a, const char *b))
{
	const git_status_entry *entry_a = a;
	const git_status_entry *entry_b = b;
	const git_diff_delta *delta_a, *delta_b;

	delta_a = entry_a->index_to_workdir ? entry_a->index_to_workdir :
		entry_a->head_to_index;
	delta_b = entry_b->index_to_workdir ? entry_b->index_to_workdir :
		entry_b->head_to_index;

	if (!delta_a && delta_b)
		return -1;
	if (delta_a && !delta_b)
		return 1;
	if (!delta_a && !delta_b)
		return 0;

	return strcomp(delta_a->new_file.path, delta_b->new_file.path);
}

static int status_entry_icmp(const void *a, const void *b)
{
	return status_entry_cmp_base(a, b, git__strcasecmp);
}

static int status_entry_cmp(const void *a, const void *b)
{
	return status_entry_cmp_base(a, b, git__strcmp);
}

static git_status_list *git_status_list_alloc(git_index *index)
{
	git_status_list *status = NULL;
	int (*entrycmp)(const void *a, const void *b);

	if (!(status = git__calloc(1, sizeof(git_status_list))))
		return NULL;

	entrycmp = index->ignore_case ? status_entry_icmp : status_entry_cmp;

	if (git_vector_init(&status->paired, 0, entrycmp) < 0) {
		git__free(status);
		return NULL;
	}

	return status;
}

int git_status_list_new(
	git_status_list **out,
	git_repository *repo,
	const git_status_options *opts)
{
	git_index *index = NULL;
	git_status_list *status = NULL;
	git_diff_options diffopt = GIT_DIFF_OPTIONS_INIT;
	git_diff_find_options findopt = GIT_DIFF_FIND_OPTIONS_INIT;
	git_tree *head = NULL;
	git_status_show_t show =
		opts ? opts->show : GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
	int error = 0;
	unsigned int flags = opts ? opts->flags : GIT_STATUS_OPT_DEFAULTS;

	assert(show <= GIT_STATUS_SHOW_WORKDIR_ONLY);

	*out = NULL;

	GITERR_CHECK_VERSION(opts, GIT_STATUS_OPTIONS_VERSION, "git_status_options");

	if ((error = git_repository__ensure_not_bare(repo, "status")) < 0 ||
		(error = git_repository_index(&index, repo)) < 0)
		return error;

	/* if there is no HEAD, that's okay - we'll make an empty iterator */
	if ((error = git_repository_head_tree(&head, repo)) < 0) {
		if (error != GIT_ENOTFOUND && error != GIT_EUNBORNBRANCH)
			goto done;
		giterr_clear();
	}

	/* refresh index from disk unless prevented */
	if ((flags & GIT_STATUS_OPT_NO_REFRESH) == 0 &&
		git_index_read(index, false) < 0)
		giterr_clear();

	status = git_status_list_alloc(index);
	GITERR_CHECK_ALLOC(status);

	if (opts) {
		memcpy(&status->opts, opts, sizeof(git_status_options));
		memcpy(&diffopt.pathspec, &opts->pathspec, sizeof(diffopt.pathspec));
	}

	diffopt.flags = GIT_DIFF_INCLUDE_TYPECHANGE;
	findopt.flags = GIT_DIFF_FIND_FOR_UNTRACKED;

	if ((flags & GIT_STATUS_OPT_INCLUDE_UNTRACKED) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_INCLUDE_UNTRACKED;
	if ((flags & GIT_STATUS_OPT_INCLUDE_IGNORED) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_INCLUDE_IGNORED;
	if ((flags & GIT_STATUS_OPT_INCLUDE_UNMODIFIED) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_INCLUDE_UNMODIFIED;
	if ((flags & GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_RECURSE_UNTRACKED_DIRS;
	if ((flags & GIT_STATUS_OPT_DISABLE_PATHSPEC_MATCH) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_DISABLE_PATHSPEC_MATCH;
	if ((flags & GIT_STATUS_OPT_RECURSE_IGNORED_DIRS) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_RECURSE_IGNORED_DIRS;
	if ((flags & GIT_STATUS_OPT_EXCLUDE_SUBMODULES) != 0)
		diffopt.flags = diffopt.flags | GIT_DIFF_IGNORE_SUBMODULES;

	if ((flags & GIT_STATUS_OPT_RENAMES_FROM_REWRITES) != 0)
		findopt.flags = findopt.flags |
			GIT_DIFF_FIND_AND_BREAK_REWRITES |
			GIT_DIFF_FIND_RENAMES_FROM_REWRITES |
			GIT_DIFF_BREAK_REWRITES_FOR_RENAMES_ONLY;

	if (show != GIT_STATUS_SHOW_WORKDIR_ONLY) {
		if ((error = git_diff_tree_to_index(
				&status->head2idx, repo, head, index, &diffopt)) < 0)
			goto done;

		if ((flags & GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX) != 0 &&
			(error = git_diff_find_similar(status->head2idx, &findopt)) < 0)
			goto done;
	}

	if (show != GIT_STATUS_SHOW_INDEX_ONLY) {
		if ((error = git_diff_index_to_workdir(
				&status->idx2wd, repo, index, &diffopt)) < 0)
			goto done;

		if ((flags & GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR) != 0 &&
			(error = git_diff_find_similar(status->idx2wd, &findopt)) < 0)
			goto done;
	}

	error = git_diff__paired_foreach(
		status->head2idx, status->idx2wd, status_collect, status);
	if (error < 0)
		goto done;

	if (flags & GIT_STATUS_OPT_SORT_CASE_SENSITIVELY)
		git_vector_set_cmp(&status->paired, status_entry_cmp);
	if (flags & GIT_STATUS_OPT_SORT_CASE_INSENSITIVELY)
		git_vector_set_cmp(&status->paired, status_entry_icmp);

	if ((flags &
		 (GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
		  GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR |
		  GIT_STATUS_OPT_SORT_CASE_SENSITIVELY |
		  GIT_STATUS_OPT_SORT_CASE_INSENSITIVELY)) != 0)
		git_vector_sort(&status->paired);

done:
	if (error < 0) {
		git_status_list_free(status);
		status = NULL;
	}

	*out = status;

	git_tree_free(head);
	git_index_free(index);

	return error;
}

size_t git_status_list_entrycount(git_status_list *status)
{
	assert(status);

	return status->paired.length;
}

const git_status_entry *git_status_byindex(git_status_list *status, size_t i)
{
	assert(status);

	return git_vector_get(&status->paired, i);
}

void git_status_list_free(git_status_list *status)
{
	if (status == NULL)
		return;

	git_diff_free(status->head2idx);
	git_diff_free(status->idx2wd);

	git_vector_free_all(&status->paired);

	git__memzero(status, sizeof(*status));
	git__free(status);
}

int git_status_foreach_ext(
	git_repository *repo,
	const git_status_options *opts,
	git_status_cb cb,
	void *payload)
{
	git_status_list *status;
	const git_status_entry *status_entry;
	size_t i;
	int error = 0;

	if ((error = git_status_list_new(&status, repo, opts)) < 0)
		return error;

	git_vector_foreach(&status->paired, i, status_entry) {
		const char *path = status_entry->head_to_index ?
			status_entry->head_to_index->old_file.path :
			status_entry->index_to_workdir->old_file.path;

		if ((error = cb(path, status_entry->status, payload)) != 0) {
			giterr_set_after_callback(error);
			break;
		}
	}

	git_status_list_free(status);

	return error;
}

int git_status_foreach(git_repository *repo, git_status_cb cb, void *payload)
{
	return git_status_foreach_ext(repo, NULL, cb, payload);
}

struct status_file_info {
	char *expected;
	unsigned int count;
	unsigned int status;
	int fnm_flags;
	int ambiguous;
};

static int get_one_status(const char *path, unsigned int status, void *data)
{
	struct status_file_info *sfi = data;
	int (*strcomp)(const char *a, const char *b);

	sfi->count++;
	sfi->status = status;

	strcomp = (sfi->fnm_flags & FNM_CASEFOLD) ? git__strcasecmp : git__strcmp;

	if (sfi->count > 1 ||
		(strcomp(sfi->expected, path) != 0 &&
		 p_fnmatch(sfi->expected, path, sfi->fnm_flags) != 0))
	{
		sfi->ambiguous = true;
		return GIT_EAMBIGUOUS; /* giterr_set will be done by caller */
	}

	return 0;
}

int git_status_file(
	unsigned int *status_flags,
	git_repository *repo,
	const char *path)
{
	int error;
	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
	struct status_file_info sfi = {0};
	git_index *index;

	assert(status_flags && repo && path);

	if ((error = git_repository_index__weakptr(&index, repo)) < 0)
		return error;

	if ((sfi.expected = git__strdup(path)) == NULL)
		return -1;
	if (index->ignore_case)
		sfi.fnm_flags = FNM_CASEFOLD;

	opts.show = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
	opts.flags = GIT_STATUS_OPT_INCLUDE_IGNORED |
		GIT_STATUS_OPT_RECURSE_IGNORED_DIRS |
		GIT_STATUS_OPT_INCLUDE_UNTRACKED |
		GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS |
		GIT_STATUS_OPT_INCLUDE_UNMODIFIED;
	opts.pathspec.count = 1;
	opts.pathspec.strings = &sfi.expected;

	error = git_status_foreach_ext(repo, &opts, get_one_status, &sfi);

	if (error < 0 && sfi.ambiguous) {
		giterr_set(GITERR_INVALID,
			"Ambiguous path '%s' given to git_status_file", sfi.expected);
		error = GIT_EAMBIGUOUS;
	}

	if (!error && !sfi.count) {
		giterr_set(GITERR_INVALID,
			"Attempt to get status of nonexistent file '%s'", path);
		error = GIT_ENOTFOUND;
	}

	*status_flags = sfi.status;

	git__free(sfi.expected);

	return error;
}

int git_status_should_ignore(
	int *ignored,
	git_repository *repo,
	const char *path)
{
	return git_ignore_path_is_ignored(ignored, repo, path);
}
Commit	Line	Data
205166d2	1	/*
359fc2d2	2	* Copyright (C) the libgit2 contributors. All rights reserved.
205166d2	3	*
bb742ede VM	4	* This file is part of libgit2, distributed under the GNU GPL v2 with
bb742ede VM	5	* a Linking Exception. For full terms see the included COPYING file.
205166d2 JP	6	*/
	7
	8	#include "common.h"
	9	#include "git2.h"
	10	#include "fileops.h"
	11	#include "hash.h"
3af6b34a JP	12	#include "vector.h"
3af6b34a JP	13	#include "tree.h"
1ee2ef87	14	#include "status.h"
3af6b34a	15	#include "git2/status.h"
56453d34	16	#include "repository.h"
df743c7d	17	#include "ignore.h"
114f5a6c	18	#include "index.h"
205166d2	19
a48ea31d RB	20	#include "git2/diff.h"
	21	#include "diff.h"
	22
a1683f28	23	static unsigned int index_delta2status(const git_diff_delta *head2idx)
a48ea31d	24	{
a1683f28	25	git_status_t st = GIT_STATUS_CURRENT;
a48ea31d	26
a1683f28	27	switch (head2idx->status) {
a48ea31d RB	28	case GIT_DELTA_ADDED:
a48ea31d RB	29	case GIT_DELTA_COPIED:
a48ea31d RB	30	st = GIT_STATUS_INDEX_NEW;
	31	break;
	32	case GIT_DELTA_DELETED:
	33	st = GIT_STATUS_INDEX_DELETED;
	34	break;
	35	case GIT_DELTA_MODIFIED:
	36	st = GIT_STATUS_INDEX_MODIFIED;
	37	break;
bc16fd3e RB	38	case GIT_DELTA_RENAMED:
bc16fd3e RB	39	st = GIT_STATUS_INDEX_RENAMED;
a1683f28 RB	40
	41	if (!git_oid_equal(&head2idx->old_file.oid, &head2idx->new_file.oid))
	42	st \|= GIT_STATUS_INDEX_MODIFIED;
bc16fd3e RB	43	break;
	44	case GIT_DELTA_TYPECHANGE:
	45	st = GIT_STATUS_INDEX_TYPECHANGE;
	46	break;
a48ea31d RB	47	default:
	48	break;
	49	}
	50
	51	return st;
	52	}
	53
a1683f28	54	static unsigned int workdir_delta2status(
3ff1d123	55	git_diff diff, git_diff_delta idx2wd)
a48ea31d	56	{
a1683f28	57	git_status_t st = GIT_STATUS_CURRENT;
a48ea31d	58
a1683f28	59	switch (idx2wd->status) {
a48ea31d	60	case GIT_DELTA_ADDED:
bc16fd3e	61	case GIT_DELTA_COPIED:
a48ea31d RB	62	case GIT_DELTA_UNTRACKED:
	63	st = GIT_STATUS_WT_NEW;
	64	break;
	65	case GIT_DELTA_DELETED:
	66	st = GIT_STATUS_WT_DELETED;
	67	break;
	68	case GIT_DELTA_MODIFIED:
	69	st = GIT_STATUS_WT_MODIFIED;
	70	break;
	71	case GIT_DELTA_IGNORED:
	72	st = GIT_STATUS_IGNORED;
	73	break;
dfe8c8df ET	74	case GIT_DELTA_RENAMED:
dfe8c8df ET	75	st = GIT_STATUS_WT_RENAMED;
a1683f28 RB	76
	77	if (!git_oid_equal(&idx2wd->old_file.oid, &idx2wd->new_file.oid)) {
	78	/* if OIDs don't match, we might need to calculate them now to
	79	* discern between RENAMED vs RENAMED+MODIFED
	80	*/
	81	if (git_oid_iszero(&idx2wd->old_file.oid) &&
	82	diff->old_src == GIT_ITERATOR_TYPE_WORKDIR &&
	83	!git_diff__oid_for_file(
	84	diff->repo, idx2wd->old_file.path, idx2wd->old_file.mode,
	85	idx2wd->old_file.size, &idx2wd->old_file.oid))
	86	idx2wd->old_file.flags \|= GIT_DIFF_FLAG_VALID_OID;
	87
	88	if (git_oid_iszero(&idx2wd->new_file.oid) &&
	89	diff->new_src == GIT_ITERATOR_TYPE_WORKDIR &&
	90	!git_diff__oid_for_file(
	91	diff->repo, idx2wd->new_file.path, idx2wd->new_file.mode,
	92	idx2wd->new_file.size, &idx2wd->new_file.oid))
	93	idx2wd->new_file.flags \|= GIT_DIFF_FLAG_VALID_OID;
	94
	95	if (!git_oid_equal(&idx2wd->old_file.oid, &idx2wd->new_file.oid))
	96	st \|= GIT_STATUS_WT_MODIFIED;
	97	}
dfe8c8df	98	break;
bc16fd3e RB	99	case GIT_DELTA_TYPECHANGE:
	100	st = GIT_STATUS_WT_TYPECHANGE;
	101	break;
a48ea31d RB	102	default:
	103	break;
	104	}
	105
	106	return st;
	107	}
	108
1ee2ef87	109	static bool status_is_included(
3a68d7f0	110	git_status_list *status,
1ee2ef87 ET	111	git_diff_delta *head2idx,
1ee2ef87 ET	112	git_diff_delta *idx2wd)
55cbd05b	113	{
3a68d7f0 RB	114	if (!(status->opts.flags & GIT_STATUS_OPT_EXCLUDE_SUBMODULES))
	115	return 1;
	116
37ee70fa	117	/* if excluding submodules and this is a submodule everywhere */
3a68d7f0 RB	118	if (head2idx) {
	119	if (head2idx->status != GIT_DELTA_ADDED &&
	120	head2idx->old_file.mode != GIT_FILEMODE_COMMIT)
	121	return 1;
	122	if (head2idx->status != GIT_DELTA_DELETED &&
	123	head2idx->new_file.mode != GIT_FILEMODE_COMMIT)
	124	return 1;
	125	}
	126	if (idx2wd) {
	127	if (idx2wd->status != GIT_DELTA_ADDED &&
	128	idx2wd->old_file.mode != GIT_FILEMODE_COMMIT)
	129	return 1;
	130	if (idx2wd->status != GIT_DELTA_DELETED &&
	131	idx2wd->new_file.mode != GIT_FILEMODE_COMMIT)
	132	return 1;
55cbd05b RB	133	}
55cbd05b RB	134
3a68d7f0 RB	135	/* only get here if every valid mode is GIT_FILEMODE_COMMIT */
3a68d7f0 RB	136	return 0;
55cbd05b RB	137	}
55cbd05b RB	138
1ee2ef87	139	static git_status_t status_compute(
a1683f28	140	git_status_list *status,
1ee2ef87 ET	141	git_diff_delta *head2idx,
	142	git_diff_delta *idx2wd)
	143	{
a1683f28	144	git_status_t st = GIT_STATUS_CURRENT;
1ee2ef87 ET	145
1ee2ef87 ET	146	if (head2idx)
a1683f28	147	st \|= index_delta2status(head2idx);
1ee2ef87 ET	148
1ee2ef87 ET	149	if (idx2wd)
a1683f28	150	st \|= workdir_delta2status(status->idx2wd, idx2wd);
1ee2ef87	151
a1683f28	152	return st;
1ee2ef87 ET	153	}
	154
	155	static int status_collect(
	156	git_diff_delta *head2idx,
	157	git_diff_delta *idx2wd,
793c4385	158	void *payload)
a48ea31d	159	{
25e0b157	160	git_status_list *status = payload;
1ee2ef87	161	git_status_entry *status_entry;
351888cf	162
25e0b157	163	if (!status_is_included(status, head2idx, idx2wd))
1ee2ef87	164	return 0;
351888cf	165
1ee2ef87	166	status_entry = git__malloc(sizeof(git_status_entry));
25e0b157	167	GITERR_CHECK_ALLOC(status_entry);
1ee2ef87	168
25e0b157	169	status_entry->status = status_compute(status, head2idx, idx2wd);
1ee2ef87 ET	170	status_entry->head_to_index = head2idx;
	171	status_entry->index_to_workdir = idx2wd;
	172
25e0b157	173	return git_vector_insert(&status->paired, status_entry);
1ee2ef87 ET	174	}
1ee2ef87 ET	175
dfe8c8df ET	176	GIT_INLINE(int) status_entry_cmp_base(
	177	const void *a,
	178	const void *b,
	179	int (strcomp)(const char a, const char *b))
	180	{
	181	const git_status_entry *entry_a = a;
	182	const git_status_entry *entry_b = b;
	183	const git_diff_delta delta_a, delta_b;
	184
	185	delta_a = entry_a->index_to_workdir ? entry_a->index_to_workdir :
	186	entry_a->head_to_index;
	187	delta_b = entry_b->index_to_workdir ? entry_b->index_to_workdir :
	188	entry_b->head_to_index;
	189
	190	if (!delta_a && delta_b)
	191	return -1;
	192	if (delta_a && !delta_b)
	193	return 1;
	194	if (!delta_a && !delta_b)
	195	return 0;
	196
	197	return strcomp(delta_a->new_file.path, delta_b->new_file.path);
	198	}
	199
	200	static int status_entry_icmp(const void a, const void b)
	201	{
	202	return status_entry_cmp_base(a, b, git__strcasecmp);
	203	}
	204
	205	static int status_entry_cmp(const void a, const void b)
	206	{
	207	return status_entry_cmp_base(a, b, git__strcmp);
	208	}
	209
	210	static git_status_list git_status_list_alloc(git_index index)
1ee2ef87	211	{
351888cf	212	git_status_list *status = NULL;
dfe8c8df ET	213	int (entrycmp)(const void a, const void *b);
dfe8c8df ET	214
351888cf RB	215	if (!(status = git__calloc(1, sizeof(git_status_list))))
	216	return NULL;
	217
dfe8c8df	218	entrycmp = index->ignore_case ? status_entry_icmp : status_entry_cmp;
1ee2ef87	219
351888cf RB	220	if (git_vector_init(&status->paired, 0, entrycmp) < 0) {
351888cf RB	221	git__free(status);
1ee2ef87	222	return NULL;
351888cf	223	}
1ee2ef87	224
351888cf	225	return status;
1ee2ef87 ET	226	}
	227
	228	int git_status_list_new(
	229	git_status_list **out,
	230	git_repository *repo,
	231	const git_status_options *opts)
	232	{
dfe8c8df	233	git_index *index = NULL;
351888cf	234	git_status_list *status = NULL;
2f8d30be	235	git_diff_options diffopt = GIT_DIFF_OPTIONS_INIT;
e38f0d69	236	git_diff_find_options findopt = GIT_DIFF_FIND_OPTIONS_INIT;
a48ea31d RB	237	git_tree *head = NULL;
	238	git_status_show_t show =
	239	opts ? opts->show : GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
1ee2ef87	240	int error = 0;
351888cf	241	unsigned int flags = opts ? opts->flags : GIT_STATUS_OPT_DEFAULTS;
a48ea31d	242
2a16914c	243	assert(show <= GIT_STATUS_SHOW_WORKDIR_ONLY);
a48ea31d	244
1ee2ef87 ET	245	*out = NULL;
1ee2ef87 ET	246
c7231c45	247	GITERR_CHECK_VERSION(opts, GIT_STATUS_OPTIONS_VERSION, "git_status_options");
79cfa20d	248
dfe8c8df ET	249	if ((error = git_repository__ensure_not_bare(repo, "status")) < 0 \|\|
dfe8c8df ET	250	(error = git_repository_index(&index, repo)) < 0)
1ee2ef87	251	return error;
52032ae5	252
5cec896a	253	/* if there is no HEAD, that's okay - we'll make an empty iterator */
4bf630b6 RB	254	if ((error = git_repository_head_tree(&head, repo)) < 0) {
	255	if (error != GIT_ENOTFOUND && error != GIT_EUNBORNBRANCH)
	256	goto done;
	257	giterr_clear();
351888cf	258	}
1ee2ef87	259
4bf630b6 RB	260	/* refresh index from disk unless prevented */
4bf630b6 RB	261	if ((flags & GIT_STATUS_OPT_NO_REFRESH) == 0 &&
8e5a8ef8	262	git_index_read(index, false) < 0)
4bf630b6 RB	263	giterr_clear();
4bf630b6 RB	264
351888cf RB	265	status = git_status_list_alloc(index);
351888cf RB	266	GITERR_CHECK_ALLOC(status);
a48ea31d	267
351888cf RB	268	if (opts) {
	269	memcpy(&status->opts, opts, sizeof(git_status_options));
	270	memcpy(&diffopt.pathspec, &opts->pathspec, sizeof(diffopt.pathspec));
	271	}
4b136a94	272
0d64bef9	273	diffopt.flags = GIT_DIFF_INCLUDE_TYPECHANGE;
e38f0d69	274	findopt.flags = GIT_DIFF_FIND_FOR_UNTRACKED;
bc16fd3e	275
351888cf	276	if ((flags & GIT_STATUS_OPT_INCLUDE_UNTRACKED) != 0)
66142ae0	277	diffopt.flags = diffopt.flags \| GIT_DIFF_INCLUDE_UNTRACKED;
351888cf	278	if ((flags & GIT_STATUS_OPT_INCLUDE_IGNORED) != 0)
66142ae0	279	diffopt.flags = diffopt.flags \| GIT_DIFF_INCLUDE_IGNORED;
351888cf	280	if ((flags & GIT_STATUS_OPT_INCLUDE_UNMODIFIED) != 0)
66142ae0	281	diffopt.flags = diffopt.flags \| GIT_DIFF_INCLUDE_UNMODIFIED;
351888cf	282	if ((flags & GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS) != 0)
4b136a94	283	diffopt.flags = diffopt.flags \| GIT_DIFF_RECURSE_UNTRACKED_DIRS;
351888cf	284	if ((flags & GIT_STATUS_OPT_DISABLE_PATHSPEC_MATCH) != 0)
a1773f9d	285	diffopt.flags = diffopt.flags \| GIT_DIFF_DISABLE_PATHSPEC_MATCH;
351888cf	286	if ((flags & GIT_STATUS_OPT_RECURSE_IGNORED_DIRS) != 0)
0c289dd7	287	diffopt.flags = diffopt.flags \| GIT_DIFF_RECURSE_IGNORED_DIRS;
351888cf	288	if ((flags & GIT_STATUS_OPT_EXCLUDE_SUBMODULES) != 0)
37ee70fa	289	diffopt.flags = diffopt.flags \| GIT_DIFF_IGNORE_SUBMODULES;
a48ea31d	290
e38f0d69	291	if ((flags & GIT_STATUS_OPT_RENAMES_FROM_REWRITES) != 0)
17c7fbf6 ET	292	findopt.flags = findopt.flags \|
	293	GIT_DIFF_FIND_AND_BREAK_REWRITES \|
	294	GIT_DIFF_FIND_RENAMES_FROM_REWRITES \|
	295	GIT_DIFF_BREAK_REWRITES_FOR_RENAMES_ONLY;
dfe8c8df	296
37ee70fa	297	if (show != GIT_STATUS_SHOW_WORKDIR_ONLY) {
351888cf	298	if ((error = git_diff_tree_to_index(
4bf630b6	299	&status->head2idx, repo, head, index, &diffopt)) < 0)
351888cf	300	goto done;
1ee2ef87	301
351888cf	302	if ((flags & GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX) != 0 &&
e38f0d69	303	(error = git_diff_find_similar(status->head2idx, &findopt)) < 0)
351888cf	304	goto done;
37ee70fa	305	}
a48ea31d	306
37ee70fa	307	if (show != GIT_STATUS_SHOW_INDEX_ONLY) {
351888cf	308	if ((error = git_diff_index_to_workdir(
4bf630b6	309	&status->idx2wd, repo, index, &diffopt)) < 0)
351888cf	310	goto done;
a48ea31d	311
351888cf	312	if ((flags & GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR) != 0 &&
e38f0d69	313	(error = git_diff_find_similar(status->idx2wd, &findopt)) < 0)
351888cf	314	goto done;
1ee2ef87	315	}
55cbd05b	316
25e0b157 RB	317	error = git_diff__paired_foreach(
	318	status->head2idx, status->idx2wd, status_collect, status);
	319	if (error < 0)
	320	goto done;
dfe8c8df	321
22b6b82f RB	322	if (flags & GIT_STATUS_OPT_SORT_CASE_SENSITIVELY)
	323	git_vector_set_cmp(&status->paired, status_entry_cmp);
	324	if (flags & GIT_STATUS_OPT_SORT_CASE_INSENSITIVELY)
	325	git_vector_set_cmp(&status->paired, status_entry_icmp);
	326
	327	if ((flags &
	328	(GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX \|
	329	GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR \|
	330	GIT_STATUS_OPT_SORT_CASE_SENSITIVELY \|
	331	GIT_STATUS_OPT_SORT_CASE_INSENSITIVELY)) != 0)
351888cf	332	git_vector_sort(&status->paired);
dfe8c8df	333
351888cf RB	334	done:
	335	if (error < 0) {
	336	git_status_list_free(status);
	337	status = NULL;
	338	}
a48ea31d	339
351888cf	340	*out = status;
1ee2ef87	341
a48ea31d	342	git_tree_free(head);
dfe8c8df	343	git_index_free(index);
5dca2010	344
1ee2ef87 ET	345	return error;
	346	}
	347
351888cf	348	size_t git_status_list_entrycount(git_status_list *status)
1ee2ef87	349	{
351888cf	350	assert(status);
1ee2ef87	351
351888cf	352	return status->paired.length;
1ee2ef87 ET	353	}
1ee2ef87 ET	354
351888cf	355	const git_status_entry git_status_byindex(git_status_list status, size_t i)
1ee2ef87	356	{
351888cf	357	assert(status);
1ee2ef87	358
351888cf	359	return git_vector_get(&status->paired, i);
1ee2ef87 ET	360	}
1ee2ef87 ET	361
351888cf	362	void git_status_list_free(git_status_list *status)
1ee2ef87	363	{
351888cf	364	if (status == NULL)
1ee2ef87 ET	365	return;
1ee2ef87 ET	366
3ff1d123 RB	367	git_diff_free(status->head2idx);
3ff1d123 RB	368	git_diff_free(status->idx2wd);
1ee2ef87	369
fcd324c6	370	git_vector_free_all(&status->paired);
1ee2ef87	371
351888cf RB	372	git__memzero(status, sizeof(*status));
351888cf RB	373	git__free(status);
1ee2ef87 ET	374	}
	375
	376	int git_status_foreach_ext(
	377	git_repository *repo,
	378	const git_status_options *opts,
	379	git_status_cb cb,
	380	void *payload)
	381	{
351888cf	382	git_status_list *status;
1ee2ef87 ET	383	const git_status_entry *status_entry;
	384	size_t i;
	385	int error = 0;
	386
351888cf	387	if ((error = git_status_list_new(&status, repo, opts)) < 0)
1ee2ef87 ET	388	return error;
1ee2ef87 ET	389
351888cf	390	git_vector_foreach(&status->paired, i, status_entry) {
1ee2ef87 ET	391	const char *path = status_entry->head_to_index ?
	392	status_entry->head_to_index->old_file.path :
	393	status_entry->index_to_workdir->old_file.path;
	394
c7b3e1b3	395	if ((error = cb(path, status_entry->status, payload)) != 0) {
26c1cb91	396	giterr_set_after_callback(error);
1ee2ef87	397	break;
c7b3e1b3	398	}
1ee2ef87 ET	399	}
1ee2ef87 ET	400
351888cf	401	git_status_list_free(status);
f335ecd6	402
1ee2ef87	403	return error;
a48ea31d RB	404	}
a48ea31d RB	405
351888cf	406	int git_status_foreach(git_repository repo, git_status_cb cb, void payload)
a48ea31d	407	{
351888cf	408	return git_status_foreach_ext(repo, NULL, cb, payload);
a48ea31d RB	409	}
a48ea31d RB	410
41a82592	411	struct status_file_info {
5dca2010	412	char *expected;
41a82592 RB	413	unsigned int count;
41a82592 RB	414	unsigned int status;
25423d03	415	int fnm_flags;
5dca2010	416	int ambiguous;
3af6b34a JP	417	};
3af6b34a JP	418
41a82592	419	static int get_one_status(const char path, unsigned int status, void data)
df743c7d	420	{
41a82592	421	struct status_file_info *sfi = data;
25423d03	422	int (strcomp)(const char a, const char *b);
df743c7d	423
41a82592 RB	424	sfi->count++;
41a82592 RB	425	sfi->status = status;
df743c7d	426
25423d03 RB	427	strcomp = (sfi->fnm_flags & FNM_CASEFOLD) ? git__strcasecmp : git__strcmp;
25423d03 RB	428
b90500f0	429	if (sfi->count > 1 \|\|
25423d03 RB	430	(strcomp(sfi->expected, path) != 0 &&
25423d03 RB	431	p_fnmatch(sfi->expected, path, sfi->fnm_flags) != 0))
5c8bb98c	432	{
5dca2010	433	sfi->ambiguous = true;
2f28219c	434	return GIT_EAMBIGUOUS; /* giterr_set will be done by caller */
0d0fa7c3	435	}
d8b903da	436
41a82592	437	return 0;
d8b903da	438	}
d8b903da	439
0d0fa7c3	440	int git_status_file(
41a82592 RB	441	unsigned int *status_flags,
	442	git_repository *repo,
	443	const char *path)
20361b2f	444	{
41a82592	445	int error;
79cfa20d BS	446	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
79cfa20d BS	447	struct status_file_info sfi = {0};
25423d03	448	git_index *index;
20361b2f	449
56453d34	450	assert(status_flags && repo && path);
56453d34	451
25423d03 RB	452	if ((error = git_repository_index__weakptr(&index, repo)) < 0)
	453	return error;
	454
41a82592	455	if ((sfi.expected = git__strdup(path)) == NULL)
722c08af	456	return -1;
25423d03 RB	457	if (index->ignore_case)
25423d03 RB	458	sfi.fnm_flags = FNM_CASEFOLD;
20361b2f	459
dfe8c8df	460	opts.show = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
41a82592	461	opts.flags = GIT_STATUS_OPT_INCLUDE_IGNORED \|
1f9e41ee	462	GIT_STATUS_OPT_RECURSE_IGNORED_DIRS \|
41a82592 RB	463	GIT_STATUS_OPT_INCLUDE_UNTRACKED \|
	464	GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS \|
	465	GIT_STATUS_OPT_INCLUDE_UNMODIFIED;
	466	opts.pathspec.count = 1;
	467	opts.pathspec.strings = &sfi.expected;
df743c7d	468
41a82592	469	error = git_status_foreach_ext(repo, &opts, get_one_status, &sfi);
df743c7d	470
5c8bb98c RB	471	if (error < 0 && sfi.ambiguous) {
	472	giterr_set(GITERR_INVALID,
	473	"Ambiguous path '%s' given to git_status_file", sfi.expected);
5dca2010	474	error = GIT_EAMBIGUOUS;
5c8bb98c	475	}
5dca2010	476
41a82592	477	if (!error && !sfi.count) {
1f9e41ee RB	478	giterr_set(GITERR_INVALID,
	479	"Attempt to get status of nonexistent file '%s'", path);
	480	error = GIT_ENOTFOUND;
df743c7d RB	481	}
df743c7d RB	482
41a82592	483	*status_flags = sfi.status;
20361b2f	484
41a82592	485	git__free(sfi.expected);
0d0fa7c3	486
56453d34	487	return error;
20361b2f	488	}
d8b903da	489
dc13f1f7	490	int git_status_should_ignore(
41a82592 RB	491	int *ignored,
	492	git_repository *repo,
	493	const char *path)
cfbc880d	494	{
2fb4e9b3	495	return git_ignore_path_is_ignored(ignored, repo, path);
cfbc880d RB	496	}
cfbc880d RB	497