/*
* 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 "status.h"
#include "git2.h"
#include "futils.h"
#include "hash.h"
#include "vector.h"
#include "tree.h"
#include "git2/status.h"
#include "repository.h"
#include "ignore.h"
#include "index.h"
#include "wildmatch.h"
#include "git2/diff.h"
#include "diff.h"
#include "diff_generate.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.id, &head2idx->new_file.id))
st |= GIT_STATUS_INDEX_MODIFIED;
break;
case GIT_DELTA_TYPECHANGE:
st = GIT_STATUS_INDEX_TYPECHANGE;
break;
case GIT_DELTA_CONFLICTED:
st = GIT_STATUS_CONFLICTED;
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_UNREADABLE:
st = GIT_STATUS_WT_UNREADABLE;
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.id, &idx2wd->new_file.id)) {
/* if OIDs don't match, we might need to calculate them now to
* discern between RENAMED vs RENAMED+MODIFIED
*/
if (git_oid_is_zero(&idx2wd->old_file.id) &&
diff->old_src == GIT_ITERATOR_WORKDIR &&
!git_diff__oid_for_file(
&idx2wd->old_file.id, diff, idx2wd->old_file.path,
idx2wd->old_file.mode, idx2wd->old_file.size))
idx2wd->old_file.flags |= GIT_DIFF_FLAG_VALID_ID;
if (git_oid_is_zero(&idx2wd->new_file.id) &&
diff->new_src == GIT_ITERATOR_WORKDIR &&
!git_diff__oid_for_file(
&idx2wd->new_file.id, diff, idx2wd->new_file.path,
idx2wd->new_file.mode, idx2wd->new_file.size))
idx2wd->new_file.flags |= GIT_DIFF_FLAG_VALID_ID;
if (!git_oid_equal(&idx2wd->old_file.id, &idx2wd->new_file.id))
st |= GIT_STATUS_WT_MODIFIED;
}
break;
case GIT_DELTA_TYPECHANGE:
st = GIT_STATUS_WT_TYPECHANGE;
break;
case GIT_DELTA_CONFLICTED:
st = GIT_STATUS_CONFLICTED;
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));
GIT_ERROR_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;
}
static int status_validate_options(const git_status_options *opts)
{
if (!opts)
return 0;
GIT_ERROR_CHECK_VERSION(opts, GIT_STATUS_OPTIONS_VERSION, "git_status_options");
if (opts->show > GIT_STATUS_SHOW_WORKDIR_ONLY) {
git_error_set(GIT_ERROR_INVALID, "unknown status 'show' option");
return -1;
}
if ((opts->flags & GIT_STATUS_OPT_NO_REFRESH) != 0 &&
(opts->flags & GIT_STATUS_OPT_UPDATE_INDEX) != 0) {
git_error_set(GIT_ERROR_INVALID, "updating index from status "
"is not allowed when index refresh is disabled");
return -1;
}
return 0;
}
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;
*out = NULL;
if (status_validate_options(opts) < 0)
return -1;
if ((error = git_repository__ensure_not_bare(repo, "status")) < 0 ||
(error = git_repository_index(&index, repo)) < 0)
return error;
if (opts != NULL && opts->baseline != NULL) {
head = opts->baseline;
} else {
/* 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;
git_error_clear();
}
}
/* refresh index from disk unless prevented */
if ((flags & GIT_STATUS_OPT_NO_REFRESH) == 0 &&
git_index_read_safely(index) < 0)
git_error_clear();
status = git_status_list_alloc(index);
GIT_ERROR_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_UPDATE_INDEX) != 0)
diffopt.flags = diffopt.flags | GIT_DIFF_UPDATE_INDEX;
if ((flags & GIT_STATUS_OPT_INCLUDE_UNREADABLE) != 0)
diffopt.flags = diffopt.flags | GIT_DIFF_INCLUDE_UNREADABLE;
if ((flags & GIT_STATUS_OPT_INCLUDE_UNREADABLE_AS_UNTRACKED) != 0)
diffopt.flags = diffopt.flags | GIT_DIFF_INCLUDE_UNREADABLE_AS_UNTRACKED;
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 (opts != NULL && opts->rename_threshold != 0)
findopt.rename_threshold = opts->rename_threshold;
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;
if (opts == NULL || opts->baseline != head)
git_tree_free(head);
git_index_free(index);
return error;
}
size_t git_status_list_entrycount(git_status_list *status)
{
GIT_ASSERT_ARG_WITH_RETVAL(status, 0);
return status->paired.length;
}
const git_status_entry *git_status_byindex(git_status_list *status, size_t i)
{
GIT_ASSERT_ARG_WITH_RETVAL(status, NULL);
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_deep(&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) {
git_error_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 wildmatch_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->wildmatch_flags & WM_CASEFOLD) ? git__strcasecmp : git__strcmp;
if (sfi->count > 1 ||
(strcomp(sfi->expected, path) != 0 &&
wildmatch(sfi->expected, path, sfi->wildmatch_flags) != 0))
{
sfi->ambiguous = true;
return GIT_EAMBIGUOUS; /* git_error_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;
GIT_ASSERT_ARG(status_flags);
GIT_ASSERT_ARG(repo);
GIT_ASSERT_ARG(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.wildmatch_flags = WM_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 |
GIT_STATUS_OPT_DISABLE_PATHSPEC_MATCH;
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) {
git_error_set(GIT_ERROR_INVALID,
"ambiguous path '%s' given to git_status_file", sfi.expected);
error = GIT_EAMBIGUOUS;
}
if (!error && !sfi.count) {
git_error_set(GIT_ERROR_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);
}
int git_status_options_init(git_status_options *opts, unsigned int version)
{
GIT_INIT_STRUCTURE_FROM_TEMPLATE(
opts, version, git_status_options, GIT_STATUS_OPTIONS_INIT);
return 0;
}
#ifndef GIT_DEPRECATE_HARD
int git_status_init_options(git_status_options *opts, unsigned int version)
{
return git_status_options_init(opts, version);
}
#endif
int git_status_list_get_perfdata(
git_diff_perfdata *out, const git_status_list *status)
{
GIT_ASSERT_ARG(out);
GIT_ERROR_CHECK_VERSION(out, GIT_DIFF_PERFDATA_VERSION, "git_diff_perfdata");
out->stat_calls = 0;
out->oid_calculations = 0;
if (status->head2idx) {
out->stat_calls += status->head2idx->perf.stat_calls;
out->oid_calculations += status->head2idx->perf.oid_calculations;
}
if (status->idx2wd) {
out->stat_calls += status->idx2wd->perf.stat_calls;
out->oid_calculations += status->idx2wd->perf.oid_calculations;
}
return 0;
}
