int git_root_diff(GIT_DIFF diff, const GIT_HASH hash, GIT_FILE* file, int* count, int isstat)
{
int ret;
struct object_id oid;
struct rev_info *p_Rev;
struct diff_queue_struct *q = &diff_queued_diff;
p_Rev = (struct rev_info *)diff;
hashcpy(oid.hash, hash);
ret = diff_root_tree_oid(&oid, "", &p_Rev->diffopt);
if(ret)
return ret;
if(isstat)
{
diffcore_std(&p_Rev->diffopt);
memset(&p_Rev->diffstat, 0, sizeof(struct diffstat_t));
for (int i = 0; i < q->nr; ++i) {
struct diff_filepair *p = q->queue[i];
//if (check_pair_status(p))
diff_flush_stat(p, &p_Rev->diffopt, &p_Rev->diffstat);
}
}
if (file)
*file = q;
if (count)
*count = q->nr;
return 0;
}
void cgit_diff_tree(const unsigned char *old_sha1,
const unsigned char *new_sha1,
filepair_fn fn, const char *prefix)
{
struct diff_options opt;
int ret;
int prefixlen;
diff_setup(&opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.detect_rename = 1;
opt.rename_limit = ctx.cfg.renamelimit;
DIFF_OPT_SET(&opt, RECURSIVE);
opt.format_callback = cgit_diff_tree_cb;
opt.format_callback_data = fn;
if (prefix) {
opt.nr_paths = 1;
opt.paths = &prefix;
prefixlen = strlen(prefix);
opt.pathlens = &prefixlen;
}
diff_setup_done(&opt);
if (old_sha1 && !is_null_sha1(old_sha1))
ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
else
ret = diff_root_tree_sha1(new_sha1, "", &opt);
diffcore_std(&opt);
diff_flush(&opt);
}
int log_tree_diff_flush(struct rev_info *opt)
{
diffcore_std(&opt->diffopt);
if (diff_queue_is_empty()) {
int saved_fmt = opt->diffopt.output_format;
opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_flush(&opt->diffopt);
opt->diffopt.output_format = saved_fmt;
return 0;
}
if (opt->loginfo && !opt->no_commit_id) {
/* When showing a verbose header (i.e. log message),
* and not in --pretty=oneline format, we would want
* an extra newline between the end of log and the
* output for readability.
*/
show_log(opt);
if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) &&
opt->verbose_header &&
opt->commit_format != CMIT_FMT_ONELINE) {
int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
if ((pch & opt->diffopt.output_format) == pch)
printf("---");
putchar('\n');
}
}
diff_flush(&opt->diffopt);
return 1;
}
void check_for_new_submodule_commits(unsigned char new_sha1[20])
{
struct rev_info rev;
struct commit *commit;
const char *argv[] = {NULL, NULL, "--not", "--all", NULL};
int argc = ARRAY_SIZE(argv) - 1;
init_revisions(&rev, NULL);
argv[1] = xstrdup(sha1_to_hex(new_sha1));
setup_revisions(argc, argv, &rev, NULL);
if (prepare_revision_walk(&rev))
die("revision walk setup failed");
/*
* Collect all submodules (whether checked out or not) for which new
* commits have been recorded upstream in "changed_submodule_paths".
*/
while ((commit = get_revision(&rev))) {
struct commit_list *parent = commit->parents;
while (parent) {
struct diff_options diff_opts;
diff_setup(&diff_opts);
diff_opts.output_format |= DIFF_FORMAT_CALLBACK;
diff_opts.format_callback = submodule_collect_changed_cb;
if (diff_setup_done(&diff_opts) < 0)
die("diff_setup_done failed");
diff_tree_sha1(parent->item->object.sha1, commit->object.sha1, "", &diff_opts);
diffcore_std(&diff_opts);
diff_flush(&diff_opts);
parent = parent->next;
}
}
free((char *)argv[1]);
}
void cgit_diff_tree(const unsigned char *old_sha1,
const unsigned char *new_sha1,
filepair_fn fn, const char *prefix, int ignorews)
{
struct diff_options opt;
struct pathspec_item item;
diff_setup(&opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.detect_rename = 1;
opt.rename_limit = ctx.cfg.renamelimit;
DIFF_OPT_SET(&opt, RECURSIVE);
if (ignorews)
DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
opt.format_callback = cgit_diff_tree_cb;
opt.format_callback_data = fn;
if (prefix) {
item.match = prefix;
item.len = strlen(prefix);
opt.pathspec.nr = 1;
opt.pathspec.items = &item;
}
diff_setup_done(&opt);
if (old_sha1 && !is_null_sha1(old_sha1))
diff_tree_sha1(old_sha1, new_sha1, "", &opt);
else
diff_root_tree_sha1(new_sha1, "", &opt);
diffcore_std(&opt);
diff_flush(&opt);
}
static int builtin_diff_b_f(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob,
const char *path)
{
/* Blob vs file in the working tree*/
struct stat st;
if (argc > 1)
usage(builtin_diff_usage);
if (lstat(path, &st))
die_errno("failed to stat '%s'", path);
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
die("'%s': not a regular file or symlink", path);
diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/");
if (blob[0].mode == S_IFINVALID)
blob[0].mode = canon_mode(st.st_mode);
stuff_change(&revs->diffopt,
blob[0].mode, canon_mode(st.st_mode),
blob[0].sha1, null_sha1,
path, path);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
int git_do_diff(GIT_DIFF diff, GIT_HASH hash1, GIT_HASH hash2, GIT_FILE * file, int *count,int isstat)
{
struct rev_info *p_Rev;
int ret;
int i;
struct diff_queue_struct *q = &diff_queued_diff;
p_Rev = (struct rev_info *)diff;
ret = diff_tree_sha1(hash1,hash2,"",&p_Rev->diffopt);
if( ret )
{
free_all_pack();
return ret;
}
if(isstat)
{
diffcore_std(&p_Rev->diffopt);
memset(&p_Rev->diffstat, 0, sizeof(struct diffstat_t));
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
//if (check_pair_status(p))
diff_flush_stat(p, &p_Rev->diffopt, &p_Rev->diffstat);
}
}
free_all_pack();
if(file)
*file = q;
if(count)
*count = q->nr;
return 0;
}
static int read_from_tree(const char *prefix, const char **argv,
unsigned char *tree_sha1, int refresh_flags)
{
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd, index_was_discarded = 0;
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
diff_tree_setup_paths(get_pathspec(prefix, (const char **)argv), &opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
opt.format_callback_data = &index_was_discarded;
index_fd = hold_locked_index(lock, 1);
index_was_discarded = 0;
read_cache();
if (do_diff_cache(tree_sha1, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
diff_tree_release_paths(&opt);
if (!index_was_discarded)
/* The index is still clobbered from do_diff_cache() */
discard_cache();
return update_index_refresh(index_fd, lock, refresh_flags);
}
static int builtin_diff_b_f(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob)
{
/* Blob vs file in the working tree*/
struct stat st;
const char *path;
if (argc > 1)
usage(builtin_diff_usage);
GUARD_PATHSPEC(&revs->prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
path = revs->prune_data.items[0].match;
if (lstat(path, &st))
die_errno(_("failed to stat '%s'"), path);
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
die(_("'%s': not a regular file or symlink"), path);
diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/");
if (blob[0].mode == S_IFINVALID)
blob[0].mode = canon_mode(st.st_mode);
stuff_change(&revs->diffopt,
blob[0].mode, canon_mode(st.st_mode),
blob[0].sha1, null_sha1,
1, 0,
path, path);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
void diff_no_index(struct rev_info *revs,
int argc, const char **argv,
const char *prefix)
{
int i, prefixlen;
const char *paths[2];
diff_setup(&revs->diffopt);
for (i = 1; i < argc - 2; ) {
int j;
if (!strcmp(argv[i], "--no-index"))
i++;
else if (!strcmp(argv[i], "--"))
i++;
else {
j = diff_opt_parse(&revs->diffopt, argv + i, argc - i);
if (j <= 0)
die("invalid diff option/value: %s", argv[i]);
i += j;
}
}
prefixlen = prefix ? strlen(prefix) : 0;
for (i = 0; i < 2; i++) {
const char *p = argv[argc - 2 + i];
if (!strcmp(p, "-"))
/*
* stdin should be spelled as "-"; if you have
* path that is "-", spell it as "./-".
*/
p = file_from_standard_input;
else if (prefixlen)
p = xstrdup(prefix_filename(prefix, prefixlen, p));
paths[i] = p;
}
revs->diffopt.skip_stat_unmatch = 1;
if (!revs->diffopt.output_format)
revs->diffopt.output_format = DIFF_FORMAT_PATCH;
DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
revs->max_count = -2;
diff_setup_done(&revs->diffopt);
setup_diff_pager(&revs->diffopt);
DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
if (queue_diff(&revs->diffopt, paths[0], paths[1]))
exit(1);
diff_set_mnemonic_prefix(&revs->diffopt, "1/", "2/");
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
/*
* The return code for --no-index imitates diff(1):
* 0 = no changes, 1 = changes, else error
*/
exit(diff_result_code(&revs->diffopt, 0));
}
static void patch_diff(const char *a, const char *b,
struct diff_options *diffopt)
{
diff_queue(&diff_queued_diff,
get_filespec("a", a), get_filespec("b", b));
diffcore_std(diffopt);
diff_flush(diffopt);
}
/*
* Get information of all renames which occurred between 'o_tree' and
* 'tree'. We need the three trees in the merge ('o_tree', 'a_tree' and
* 'b_tree') to be able to associate the correct cache entries with
* the rename information. 'tree' is always equal to either a_tree or b_tree.
*/
static struct string_list *get_renames(struct merge_options *o,
struct tree *tree,
struct tree *o_tree,
struct tree *a_tree,
struct tree *b_tree,
struct string_list *entries)
{
int i;
struct string_list *renames;
struct diff_options opts;
renames = xcalloc(1, sizeof(struct string_list));
diff_setup(&opts);
DIFF_OPT_SET(&opts, RECURSIVE);
opts.detect_rename = DIFF_DETECT_RENAME;
opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit :
o->diff_rename_limit >= 0 ? o->diff_rename_limit :
500;
opts.warn_on_too_large_rename = 1;
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
if (diff_setup_done(&opts) < 0)
die("diff setup failed");
diff_tree_sha1(o_tree->object.sha1, tree->object.sha1, "", &opts);
diffcore_std(&opts);
for (i = 0; i < diff_queued_diff.nr; ++i) {
struct string_list_item *item;
struct rename *re;
struct diff_filepair *pair = diff_queued_diff.queue[i];
if (pair->status != 'R') {
diff_free_filepair(pair);
continue;
}
re = xmalloc(sizeof(*re));
re->processed = 0;
re->pair = pair;
item = string_list_lookup(re->pair->one->path, entries);
if (!item)
re->src_entry = insert_stage_data(re->pair->one->path,
o_tree, a_tree, b_tree, entries);
else
re->src_entry = item->util;
item = string_list_lookup(re->pair->two->path, entries);
if (!item)
re->dst_entry = insert_stage_data(re->pair->two->path,
o_tree, a_tree, b_tree, entries);
else
re->dst_entry = item->util;
item = string_list_insert(pair->one->path, renames);
item->util = re;
}
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_queued_diff.nr = 0;
diff_flush(&opts);
return renames;
}
int log_tree_diff_flush(struct rev_info *opt)
{
opt->shown_dashes = 0;
diffcore_std(&opt->diffopt);
if (diff_queue_is_empty()) {
int saved_fmt = opt->diffopt.output_format;
opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_flush(&opt->diffopt);
opt->diffopt.output_format = saved_fmt;
return 0;
}
if (opt->loginfo && !opt->no_commit_id) {
show_log(opt);
if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) &&
opt->verbose_header &&
opt->commit_format != CMIT_FMT_ONELINE &&
!commit_format_is_empty(opt->commit_format)) {
/*
* When showing a verbose header (i.e. log message),
* and not in --pretty=oneline format, we would want
* an extra newline between the end of log and the
* diff/diffstat output for readability.
*/
int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
if (opt->diffopt.output_prefix) {
struct strbuf *msg = NULL;
msg = opt->diffopt.output_prefix(&opt->diffopt,
opt->diffopt.output_prefix_data);
fwrite(msg->buf, msg->len, 1, stdout);
}
/*
* We may have shown three-dashes line early
* between notes and the log message, in which
* case we only want a blank line after the
* notes without (an extra) three-dashes line.
* Otherwise, we show the three-dashes line if
* we are showing the patch with diffstat, but
* in that case, there is no extra blank line
* after the three-dashes line.
*/
if (!opt->shown_dashes &&
(pch & opt->diffopt.output_format) == pch)
printf("---");
putchar('\n');
}
}
diff_flush(&opt->diffopt);
return 1;
}
static void finish(struct commit *head_commit,
struct commit_list *remoteheads,
const unsigned char *new_head, const char *msg)
{
struct strbuf reflog_message = STRBUF_INIT;
const unsigned char *head = head_commit->object.oid.hash;
if (!msg)
strbuf_addstr(&reflog_message, getenv("GIT_REFLOG_ACTION"));
else {
if (verbosity >= 0)
printf("%s\n", msg);
strbuf_addf(&reflog_message, "%s: %s",
getenv("GIT_REFLOG_ACTION"), msg);
}
if (squash) {
squash_message(head_commit, remoteheads);
} else {
if (verbosity >= 0 && !merge_msg.len)
printf(_("No merge message -- not updating HEAD\n"));
else {
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
update_ref(reflog_message.buf, "HEAD",
new_head, head, 0,
UPDATE_REFS_DIE_ON_ERR);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
close_all_packs();
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
}
}
if (new_head && show_diffstat) {
struct diff_options opts;
diff_setup(&opts);
opts.stat_width = -1; /* use full terminal width */
opts.stat_graph_width = -1; /* respect statGraphWidth config */
opts.output_format |=
DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
opts.detect_rename = DIFF_DETECT_RENAME;
diff_setup_done(&opts);
diff_tree_sha1(head, new_head, "", &opts);
diffcore_std(&opts);
diff_flush(&opts);
}
/* Run a post-merge hook */
run_hook_le(NULL, "post-merge", squash ? "1" : "0", NULL);
strbuf_release(&reflog_message);
}
int commit_patch_id(struct commit *commit, struct diff_options *options,
unsigned char *sha1, int diff_header_only)
{
if (!patch_id_defined(commit))
return -1;
if (commit->parents)
diff_tree_sha1(commit->parents->item->object.oid.hash,
commit->object.oid.hash, "", options);
else
diff_root_tree_sha1(commit->object.oid.hash, "", options);
diffcore_std(options);
return diff_flush_patch_id(options, sha1, diff_header_only);
}
int commit_patch_id(struct commit *commit, struct diff_options *options,
struct object_id *oid, int diff_header_only)
{
if (!patch_id_defined(commit))
return -1;
if (commit->parents)
diff_tree_oid(&commit->parents->item->object.oid,
&commit->object.oid, "", options);
else
diff_root_tree_oid(&commit->object.oid, "", options);
diffcore_std(options);
return diff_flush_patch_id(options, oid, diff_header_only);
}
static void finish(const unsigned char *new_head, const char *msg)
{
struct strbuf reflog_message = STRBUF_INIT;
if (!msg)
strbuf_addstr(&reflog_message, getenv("GIT_REFLOG_ACTION"));
else {
if (verbosity >= 0)
printf("%s\n", msg);
strbuf_addf(&reflog_message, "%s: %s",
getenv("GIT_REFLOG_ACTION"), msg);
}
if (squash) {
squash_message();
} else {
if (verbosity >= 0 && !merge_msg.len)
printf(_("No merge message -- not updating HEAD\n"));
else {
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
update_ref(reflog_message.buf, "HEAD",
new_head, head, 0,
DIE_ON_ERR);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
}
}
if (new_head && show_diffstat) {
struct diff_options opts;
diff_setup(&opts);
opts.output_format |=
DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
opts.detect_rename = DIFF_DETECT_RENAME;
if (diff_use_color_default > 0)
DIFF_OPT_SET(&opts, COLOR_DIFF);
if (diff_setup_done(&opts) < 0)
die(_("diff_setup_done failed"));
diff_tree_sha1(head, new_head, "", &opts);
diffcore_std(&opts);
diff_flush(&opts);
}
/* Run a post-merge hook */
run_hook(NULL, "post-merge", squash ? "1" : "0", NULL);
strbuf_release(&reflog_message);
}
int main(int ac, const char **av)
{
int stage1, stage2;
setup_git_directory();
git_config(git_diff_config);
read_cache();
diff_setup(&diff_options);
while (1 < ac && av[1][0] == '-') {
const char *arg = av[1];
if (!strcmp(arg, "-r"))
; /* as usual */
else {
int diff_opt_cnt;
diff_opt_cnt = diff_opt_parse(&diff_options,
av+1, ac-1);
if (diff_opt_cnt < 0)
usage(diff_stages_usage);
else if (diff_opt_cnt) {
av += diff_opt_cnt;
ac -= diff_opt_cnt;
continue;
}
else
usage(diff_stages_usage);
}
ac--; av++;
}
if (ac < 3 ||
sscanf(av[1], "%d", &stage1) != 1 ||
! (0 <= stage1 && stage1 <= 3) ||
sscanf(av[2], "%d", &stage2) != 1 ||
! (0 <= stage2 && stage2 <= 3))
usage(diff_stages_usage);
av += 3; /* The rest from av[0] are for paths restriction. */
diff_options.paths = av;
if (diff_setup_done(&diff_options) < 0)
usage(diff_stages_usage);
diff_stages(stage1, stage2);
diffcore_std(&diff_options);
diff_flush(&diff_options);
return 0;
}
static void calculate_changed_submodule_paths(void)
{
struct rev_info rev;
struct commit *commit;
struct argv_array argv = ARGV_ARRAY_INIT;
/* No need to check if there are no submodules configured */
if (!config_name_for_path.nr)
return;
init_revisions(&rev, NULL);
argv_array_push(&argv, "--"); /* argv[0] program name */
sha1_array_for_each_unique(&ref_tips_after_fetch,
add_sha1_to_argv, &argv);
argv_array_push(&argv, "--not");
sha1_array_for_each_unique(&ref_tips_before_fetch,
add_sha1_to_argv, &argv);
setup_revisions(argv.argc, argv.argv, &rev, NULL);
if (prepare_revision_walk(&rev))
die("revision walk setup failed");
/*
* Collect all submodules (whether checked out or not) for which new
* commits have been recorded upstream in "changed_submodule_paths".
*/
while ((commit = get_revision(&rev))) {
struct commit_list *parent = commit->parents;
while (parent) {
struct diff_options diff_opts;
diff_setup(&diff_opts);
DIFF_OPT_SET(&diff_opts, RECURSIVE);
diff_opts.output_format |= DIFF_FORMAT_CALLBACK;
diff_opts.format_callback = submodule_collect_changed_cb;
if (diff_setup_done(&diff_opts) < 0)
die("diff_setup_done failed");
diff_tree_sha1(parent->item->object.sha1, commit->object.sha1, "", &diff_opts);
diffcore_std(&diff_opts);
diff_flush(&diff_opts);
parent = parent->next;
}
}
argv_array_clear(&argv);
sha1_array_clear(&ref_tips_before_fetch);
sha1_array_clear(&ref_tips_after_fetch);
initialized_fetch_ref_tips = 0;
}
static int read_from_tree(const char **pathspec, unsigned char *tree_sha1)
{
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
diff_tree_setup_paths(pathspec, &opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
read_cache();
if (do_diff_cache(tree_sha1, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
diff_tree_release_paths(&opt);
return 0;
}
int run_diff_index(struct rev_info *revs, int cached)
{
struct object_array_entry *ent;
if (revs->pending.nr != 1)
BUG("run_diff_index must be passed exactly one tree");
trace_performance_enter();
ent = revs->pending.objects;
if (diff_cache(revs, &ent->item->oid, ent->name, cached))
exit(128);
diff_set_mnemonic_prefix(&revs->diffopt, "c/", cached ? "i/" : "w/");
diffcore_fix_diff_index(&revs->diffopt);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
trace_performance_leave("diff-index");
return 0;
}
static int read_from_tree(const struct pathspec *pathspec,
unsigned char *tree_sha1,
int intent_to_add)
{
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
copy_pathspec(&opt.pathspec, pathspec);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
opt.format_callback_data = &intent_to_add;
if (do_diff_cache(tree_sha1, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
free_pathspec(&opt.pathspec);
return 0;
}
static int read_from_tree(const struct pathspec *pathspec,
struct object_id *tree_oid,
int intent_to_add)
{
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
copy_pathspec(&opt.pathspec, pathspec);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
opt.format_callback_data = &intent_to_add;
opt.flags.override_submodule_config = 1;
if (do_diff_cache(tree_oid, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
clear_pathspec(&opt.pathspec);
return 0;
}
static int builtin_diff_blobs(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob)
{
unsigned mode = canon_mode(S_IFREG | 0644);
if (argc > 1)
usage(builtin_diff_usage);
if (blob[0].mode == S_IFINVALID)
blob[0].mode = mode;
if (blob[1].mode == S_IFINVALID)
blob[1].mode = mode;
stuff_change(&revs->diffopt,
blob[0].mode, blob[1].mode,
blob[0].sha1, blob[1].sha1,
blob[0].name, blob[1].name);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static int builtin_diff_blobs(struct rev_info *revs,
int argc, const char **argv,
struct object_array_entry **blob)
{
unsigned mode = canon_mode(S_IFREG | 0644);
if (argc > 1)
usage(builtin_diff_usage);
if (blob[0]->mode == S_IFINVALID)
blob[0]->mode = mode;
if (blob[1]->mode == S_IFINVALID)
blob[1]->mode = mode;
stuff_change(&revs->diffopt,
blob[0]->mode, blob[1]->mode,
&blob[0]->item->oid, &blob[1]->item->oid,
1, 1,
blob_path(blob[0]), blob_path(blob[1]));
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
/*
* We have an origin -- find the path that corresponds to it in its
* parent and return an origin structure to represent it.
*/
static struct blame_origin *find_rename(struct commit *parent,
struct blame_origin *origin)
{
struct blame_origin *porigin = NULL;
struct diff_options diff_opts;
int i;
diff_setup(&diff_opts);
DIFF_OPT_SET(&diff_opts, RECURSIVE);
diff_opts.detect_rename = DIFF_DETECT_RENAME;
diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_opts.single_follow = origin->path;
diff_setup_done(&diff_opts);
if (is_null_oid(&origin->commit->object.oid))
do_diff_cache(&parent->tree->object.oid, &diff_opts);
else
diff_tree_oid(&parent->tree->object.oid,
&origin->commit->tree->object.oid,
"", &diff_opts);
diffcore_std(&diff_opts);
for (i = 0; i < diff_queued_diff.nr; i++) {
struct diff_filepair *p = diff_queued_diff.queue[i];
if ((p->status == 'R' || p->status == 'C') &&
!strcmp(p->two->path, origin->path)) {
porigin = get_origin(parent, p->one->path);
oidcpy(&porigin->blob_oid, &p->one->oid);
porigin->mode = p->one->mode;
break;
}
}
diff_flush(&diff_opts);
clear_pathspec(&diff_opts.pathspec);
return porigin;
}
static void make_cover_letter(struct rev_info *rev, int use_stdout,
int numbered, int numbered_files,
struct commit *origin,
int nr, struct commit **list, struct commit *head)
{
const char *committer;
const char *subject_start = NULL;
const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n";
const char *msg;
const char *extra_headers = rev->extra_headers;
struct shortlog log;
struct strbuf sb = STRBUF_INIT;
int i;
const char *encoding = "UTF-8";
struct diff_options opts;
int need_8bit_cte = 0;
struct commit *commit = NULL;
if (rev->commit_format != CMIT_FMT_EMAIL)
die("Cover letter needs email format");
committer = git_committer_info(0);
if (!numbered_files) {
/*
* We fake a commit for the cover letter so we get the filename
* desired.
*/
commit = xcalloc(1, sizeof(*commit));
commit->buffer = xmalloc(400);
snprintf(commit->buffer, 400,
"tree 0000000000000000000000000000000000000000\n"
"parent %s\n"
"author %s\n"
"committer %s\n\n"
"cover letter\n",
sha1_to_hex(head->object.sha1), committer, committer);
}
if (!use_stdout && reopen_stdout(commit, rev))
return;
if (commit) {
free(commit->buffer);
free(commit);
}
log_write_email_headers(rev, head, &subject_start, &extra_headers,
&need_8bit_cte);
for (i = 0; !need_8bit_cte && i < nr; i++)
if (has_non_ascii(list[i]->buffer))
need_8bit_cte = 1;
msg = body;
pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822,
encoding);
pp_title_line(CMIT_FMT_EMAIL, &msg, &sb, subject_start, extra_headers,
encoding, need_8bit_cte);
pp_remainder(CMIT_FMT_EMAIL, &msg, &sb, 0);
printf("%s\n", sb.buf);
strbuf_release(&sb);
shortlog_init(&log);
log.wrap_lines = 1;
log.wrap = 72;
log.in1 = 2;
log.in2 = 4;
for (i = 0; i < nr; i++)
shortlog_add_commit(&log, list[i]);
shortlog_output(&log);
/*
* We can only do diffstat with a unique reference point
*/
if (!origin)
return;
memcpy(&opts, &rev->diffopt, sizeof(opts));
opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
diff_setup_done(&opts);
diff_tree_sha1(origin->tree->object.sha1,
head->tree->object.sha1,
"", &opts);
diffcore_std(&opts);
diff_flush(&opts);
printf("\n");
}
static void make_cover_letter(struct rev_info *rev, int use_stdout,
int numbered, int numbered_files,
struct commit *origin,
int nr, struct commit **list, struct commit *head,
const char *branch_name,
int quiet)
{
const char *committer;
const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n";
const char *msg;
struct shortlog log;
struct strbuf sb = STRBUF_INIT;
int i;
const char *encoding = "UTF-8";
struct diff_options opts;
int need_8bit_cte = 0;
struct pretty_print_context pp = {0};
if (rev->commit_format != CMIT_FMT_EMAIL)
die(_("Cover letter needs email format"));
committer = git_committer_info(0);
if (!use_stdout &&
reopen_stdout(NULL, numbered_files ? NULL : "cover-letter", rev, quiet))
return;
log_write_email_headers(rev, head, &pp.subject, &pp.after_subject,
&need_8bit_cte);
for (i = 0; !need_8bit_cte && i < nr; i++)
if (has_non_ascii(list[i]->buffer))
need_8bit_cte = 1;
msg = body;
pp.fmt = CMIT_FMT_EMAIL;
pp.date_mode = DATE_RFC2822;
pp_user_info(&pp, NULL, &sb, committer, encoding);
pp_title_line(&pp, &msg, &sb, encoding, need_8bit_cte);
pp_remainder(&pp, &msg, &sb, 0);
add_branch_description(&sb, branch_name);
printf("%s\n", sb.buf);
strbuf_release(&sb);
shortlog_init(&log);
log.wrap_lines = 1;
log.wrap = 72;
log.in1 = 2;
log.in2 = 4;
for (i = 0; i < nr; i++)
shortlog_add_commit(&log, list[i]);
shortlog_output(&log);
/*
* We can only do diffstat with a unique reference point
*/
if (!origin)
return;
memcpy(&opts, &rev->diffopt, sizeof(opts));
opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
diff_setup_done(&opts);
diff_tree_sha1(origin->tree->object.sha1,
head->tree->object.sha1,
"", &opts);
diffcore_std(&opts);
diff_flush(&opts);
printf("\n");
print_signature();
}
static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, const char *base, struct diff_options *opt)
{
struct diff_options diff_opts;
struct diff_queue_struct *q = &diff_queued_diff;
struct diff_filepair *choice;
const char *paths[1];
int i;
/* Remove the file creation entry from the diff queue, and remember it */
choice = q->queue[0];
q->nr = 0;
diff_setup(&diff_opts);
DIFF_OPT_SET(&diff_opts, RECURSIVE);
diff_opts.detect_rename = DIFF_DETECT_RENAME;
diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_opts.single_follow = opt->paths[0];
diff_opts.break_opt = opt->break_opt;
paths[0] = NULL;
diff_tree_setup_paths(paths, &diff_opts);
if (diff_setup_done(&diff_opts) < 0)
die("unable to set up diff options to follow renames");
diff_tree(t1, t2, base, &diff_opts);
diffcore_std(&diff_opts);
diff_tree_release_paths(&diff_opts);
/* Go through the new set of filepairing, and see if we find a more interesting one */
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
/*
* Found a source? Not only do we use that for the new
* diff_queued_diff, we will also use that as the path in
* the future!
*/
if ((p->status == 'R' || p->status == 'C') && !strcmp(p->two->path, opt->paths[0])) {
/* Switch the file-pairs around */
q->queue[i] = choice;
choice = p;
/* Update the path we use from now on.. */
diff_tree_release_paths(opt);
opt->paths[0] = xstrdup(p->one->path);
diff_tree_setup_paths(opt->paths, opt);
break;
}
}
/*
* Then, discard all the non-relevane file pairs...
*/
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
diff_free_filepair(p);
}
/*
* .. and re-instate the one we want (which might be either the
* original one, or the rename/copy we found)
*/
q->queue[0] = choice;
q->nr = 1;
}
void diff_no_index(struct rev_info *revs,
int argc, const char **argv,
int nongit, const char *prefix)
{
int i;
int no_index = 0;
unsigned options = 0;
/* Were we asked to do --no-index explicitly? */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "--"))
return;
if (!strcmp(argv[i], "--no-index"))
no_index = 1;
if (argv[i][0] != '-')
break;
}
if (!no_index && !nongit) {
/*
* Inside a git repository, without --no-index. Only
* when a path outside the repository is given,
* e.g. "git diff /var/tmp/[12]", or "git diff
* Makefile /var/tmp/Makefile", allow it to be used as
* a colourful "diff" replacement.
*/
if ((argc != i + 2) ||
(!path_outside_repo(argv[i]) &&
!path_outside_repo(argv[i+1])))
return;
}
if (argc != i + 2)
die("git diff %s takes two paths",
no_index ? "--no-index" : "[--no-index]");
/*
* If the user asked for our exit code then don't start a
* pager or we would end up reporting its exit code instead.
*/
if (!DIFF_OPT_TST(&revs->diffopt, EXIT_WITH_STATUS))
setup_pager();
diff_setup(&revs->diffopt);
if (!revs->diffopt.output_format)
revs->diffopt.output_format = DIFF_FORMAT_PATCH;
for (i = 1; i < argc - 2; ) {
int j;
if (!strcmp(argv[i], "--no-index"))
i++;
else if (!strcmp(argv[1], "-q"))
options |= DIFF_SILENT_ON_REMOVED;
else {
j = diff_opt_parse(&revs->diffopt, argv + i, argc - i);
if (!j)
die("invalid diff option/value: %s", argv[i]);
i += j;
}
}
if (prefix) {
int len = strlen(prefix);
revs->diffopt.paths = xcalloc(2, sizeof(char*));
for (i = 0; i < 2; i++) {
const char *p = argv[argc - 2 + i];
/*
* stdin should be spelled as '-'; if you have
* path that is '-', spell it as ./-.
*/
p = (strcmp(p, "-")
? xstrdup(prefix_filename(prefix, len, p))
: p);
revs->diffopt.paths[i] = p;
}
}
else
revs->diffopt.paths = argv + argc - 2;
revs->diffopt.nr_paths = 2;
DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
revs->max_count = -2;
if (diff_setup_done(&revs->diffopt) < 0)
die("diff_setup_done failed");
if (queue_diff(&revs->diffopt, revs->diffopt.paths[0],
revs->diffopt.paths[1]))
exit(1);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
/*
* The return code for --no-index imitates diff(1):
* 0 = no changes, 1 = changes, else error
*/
exit(revs->diffopt.found_changes);
}
