static int check_changes_tracked_files(struct pathspec ps)
{
int result;
struct rev_info rev;
struct object_id dummy;
/* No initial commit. */
if (get_oid("HEAD", &dummy))
return -1;
if (read_cache() < 0)
return -1;
init_revisions(&rev, NULL);
rev.prune_data = ps;
rev.diffopt.flags.quick = 1;
rev.diffopt.flags.ignore_submodules = 1;
rev.abbrev = 0;
add_head_to_pending(&rev);
diff_setup_done(&rev.diffopt);
result = run_diff_index(&rev, 1);
if (diff_result_code(&rev.diffopt, result))
return 1;
object_array_clear(&rev.pending);
result = run_diff_files(&rev, 0);
if (diff_result_code(&rev.diffopt, result))
return 1;
return 0;
}
static int evaluate_result(void)
{
int cnt = 0;
struct rev_info rev;
if (read_cache() < 0)
die("failed to read the cache");
/* Check how many files differ. */
init_revisions(&rev, "");
setup_revisions(0, NULL, &rev, NULL);
rev.diffopt.output_format |=
DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = count_diff_files;
rev.diffopt.format_callback_data = &cnt;
run_diff_files(&rev, 0);
/*
* Check how many unmerged entries are
* there.
*/
cnt += count_unmerged_entries();
return cnt;
}
int cmd_diff_files(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
int result;
unsigned options = 0;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(diff_files_usage);
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
init_revisions(&rev, prefix);
rev.abbrev = 0;
precompose_argv(argc, argv);
argc = setup_revisions(argc, argv, &rev, NULL);
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "--base"))
rev.max_count = 1;
else if (!strcmp(argv[1], "--ours"))
rev.max_count = 2;
else if (!strcmp(argv[1], "--theirs"))
rev.max_count = 3;
else if (!strcmp(argv[1], "-q"))
options |= DIFF_SILENT_ON_REMOVED;
else
usage(diff_files_usage);
argv++; argc--;
}
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
/*
* Make sure there are NO revision (i.e. pending object) parameter,
* rev.max_count is reasonable (0 <= n <= 3), and
* there is no other revision filtering parameters.
*/
if (rev.pending.nr ||
rev.min_age != -1 || rev.max_age != -1 ||
3 < rev.max_count)
usage(diff_files_usage);
/*
* "diff-files --base -p" should not combine merges because it
* was not asked to. "diff-files -c -p" should not densify
* (the user should ask with "diff-files --cc" explicitly).
*/
if (rev.max_count == -1 && !rev.combine_merges &&
(rev.diffopt.output_format & DIFF_FORMAT_PATCH))
rev.combine_merges = rev.dense_combined_merges = 1;
if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
perror("read_cache_preload");
return -1;
}
result = run_diff_files(&rev, options);
return diff_result_code(&rev.diffopt, result);
}
static void wt_status_print_changed(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, "");
setup_revisions(0, NULL, &rev, NULL);
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = wt_status_print_changed_cb;
rev.diffopt.format_callback_data = s;
run_diff_files(&rev, 0);
}
/**
* Returns 1 if there are unstaged changes, 0 otherwise.
*/
static int has_unstaged_changes(const char *prefix)
{
struct rev_info rev_info;
int result;
init_revisions(&rev_info, prefix);
DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
DIFF_OPT_SET(&rev_info.diffopt, QUICK);
diff_setup_done(&rev_info.diffopt);
result = run_diff_files(&rev_info, 0);
return diff_result_code(&rev_info.diffopt, result);
}
static void wt_status_print_verbose(struct wt_status *s)
{
struct rev_info rev;
struct setup_revision_opt opt;
int dirty_submodules;
const char *c = color(WT_STATUS_HEADER, s);
init_revisions(&rev, NULL);
DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
memset(&opt, 0, sizeof(opt));
opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
setup_revisions(0, NULL, &rev, &opt);
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
rev.diffopt.detect_rename = 1;
rev.diffopt.file = s->fp;
rev.diffopt.close_file = 0;
/*
* If we're not going to stdout, then we definitely don't
* want color, since we are going to the commit message
* file (and even the "auto" setting won't work, since it
* will have checked isatty on stdout). But we then do want
* to insert the scissor line here to reliably remove the
* diff before committing.
*/
if (s->fp != stdout) {
rev.diffopt.use_color = 0;
wt_status_add_cut_line(s->fp);
}
if (s->verbose > 1 && s->commitable) {
/* print_updated() printed a header, so do we */
if (s->fp != stdout)
wt_status_print_trailer(s);
status_printf_ln(s, c, _("Changes to be committed:"));
rev.diffopt.a_prefix = "c/";
rev.diffopt.b_prefix = "i/";
} /* else use prefix as per user config */
run_diff_index(&rev, 1);
if (s->verbose > 1 &&
wt_status_check_worktree_changes(s, &dirty_submodules)) {
status_printf_ln(s, c,
"--------------------------------------------------");
status_printf_ln(s, c, _("Changes not staged for commit:"));
setup_work_tree();
rev.diffopt.a_prefix = "i/";
rev.diffopt.b_prefix = "w/";
run_diff_files(&rev, 0);
}
}
static int edit_patch(int argc, const char **argv, const char *prefix)
{
char *file = git_pathdup("ADD_EDIT.patch");
const char *apply_argv[] = { "apply", "--recount", "--cached",
NULL, NULL };
struct child_process child = CHILD_PROCESS_INIT;
struct rev_info rev;
int out;
struct stat st;
apply_argv[3] = file;
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
if (read_cache() < 0)
die(_("Could not read the index"));
repo_init_revisions(the_repository, &rev, prefix);
rev.diffopt.context = 7;
argc = setup_revisions(argc, argv, &rev, NULL);
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
rev.diffopt.use_color = 0;
rev.diffopt.flags.ignore_dirty_submodules = 1;
out = open(file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
if (out < 0)
die(_("Could not open '%s' for writing."), file);
rev.diffopt.file = xfdopen(out, "w");
rev.diffopt.close_file = 1;
if (run_diff_files(&rev, 0))
die(_("Could not write patch"));
if (launch_editor(file, NULL, NULL))
die(_("editing patch failed"));
if (stat(file, &st))
die_errno(_("Could not stat '%s'"), file);
if (!st.st_size)
die(_("Empty patch. Aborted."));
child.git_cmd = 1;
child.argv = apply_argv;
if (run_command(&child))
die(_("Could not apply '%s'"), file);
unlink(file);
free(file);
return 0;
}
static int edit_patch(int argc, const char **argv, const char *prefix)
{
char *file = git_pathdup("ADD_EDIT.patch");
const char *apply_argv[] = { "apply", "--recount", "--cached",
NULL, NULL };
struct child_process child;
struct rev_info rev;
int out;
struct stat st;
apply_argv[3] = file;
git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
if (read_cache() < 0)
die(_("Could not read the index"));
init_revisions(&rev, prefix);
rev.diffopt.context = 7;
argc = setup_revisions(argc, argv, &rev, NULL);
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
rev.diffopt.use_color = 0;
DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
out = open(file, O_CREAT | O_WRONLY, 0666);
if (out < 0)
die(_("Could not open '%s' for writing."), file);
rev.diffopt.file = xfdopen(out, "w");
rev.diffopt.close_file = 1;
if (run_diff_files(&rev, 0))
die(_("Could not write patch"));
launch_editor(file, NULL, NULL);
if (stat(file, &st))
die_errno(_("Could not stat '%s'"), file);
if (!st.st_size)
die(_("Empty patch. Aborted."));
memset(&child, 0, sizeof(child));
child.git_cmd = 1;
child.argv = apply_argv;
if (run_command(&child))
die(_("Could not apply '%s'"), file);
unlink(file);
free(file);
return 0;
}
int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
{
struct update_callback_data data;
struct rev_info rev;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
rev.prune_data = pathspec;
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
data.flags = flags;
data.add_errors = 0;
rev.diffopt.format_callback_data = &data;
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
return !!data.add_errors;
}
static void update_files_in_cache(const char *prefix,
const struct pathspec *pathspec,
struct update_callback_data *data)
{
struct rev_info rev;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
if (pathspec)
copy_pathspec(&rev.prune_data, pathspec);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = data;
rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
}
static void wt_status_collect_changes_worktree(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, NULL);
setup_revisions(0, NULL, &rev, NULL);
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
if (!s->show_untracked_files)
DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
if (s->ignore_submodule_arg)
handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
rev.diffopt.format_callback = wt_status_collect_changed_cb;
rev.diffopt.format_callback_data = s;
rev.prune_data = s->pathspec;
run_diff_files(&rev, 0);
}
int add_files_to_cache(const char *prefix,
const struct pathspec *pathspec, int flags)
{
struct update_callback_data data;
struct rev_info rev;
memset(&data, 0, sizeof(data));
data.flags = flags;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
if (pathspec)
copy_pathspec(&rev.prune_data, pathspec);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = &data;
rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
return !!data.add_errors;
}
static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv)
{
int result;
unsigned int options = 0;
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "--base"))
revs->max_count = 1;
else if (!strcmp(argv[1], "--ours"))
revs->max_count = 2;
else if (!strcmp(argv[1], "--theirs"))
revs->max_count = 3;
else if (!strcmp(argv[1], "-q"))
options |= DIFF_SILENT_ON_REMOVED;
else if (!strcmp(argv[1], "-h"))
usage(builtin_diff_usage);
else
return error("invalid option: %s", argv[1]);
argv++;
argc--;
}
/*
* "diff --base" should not combine merges because it was not
* asked to. "diff -c" should not densify (if the user wants
* dense one, --cc can be explicitly asked for, or just rely
* on the default).
*/
if (revs->max_count == -1 && !revs->combine_merges &&
(revs->diffopt.output_format & DIFF_FORMAT_PATCH))
revs->combine_merges = revs->dense_combined_merges = 1;
setup_work_tree();
if (read_cache_preload(revs->diffopt.paths) < 0) {
perror("read_cache_preload");
return -1;
}
result = run_diff_files(revs, options);
return diff_result_code(&revs->diffopt, result);
}
