<commit_before>#include "cache.h"
#include "commit.h"
#include "tag.h"
#include "refs.h"
#include "pkt-line.h"

static const char send_pack_usage[] =
"git-send-pack [--all] [--exec=git-receive-pack] <remote> [<head>...]\n"
"  --all and explicit <head> specification are mutually exclusive.";
static const char *exec = "git-receive-pack";
static int send_all = 0;
static int force_update = 0;

static int is_zero_sha1(const unsigned char *sha1)
{
	int i;

	for (i = 0; i < 20; i++) {
		if (*sha1++)
			return 0;
	}
	return 1;
}

static void exec_pack_objects(void)
{
	static char *args[] = {
		"git-pack-objects",
		"--stdout",
		NULL
	};
	execvp("git-pack-objects", args);
	die("git-pack-objects exec failed (%s)", strerror(errno));
}

static void exec_rev_list(struct ref *refs)
{
	static char *args[1000];
	int i = 0;

	args[i++] = "git-rev-list";	/* 0 */
	args[i++] = "--objects";	/* 1 */
	while (refs) {
		char *buf = malloc(100);
		if (i > 900)
			die("git-rev-list environment overflow");
		if (!is_zero_sha1(refs->old_sha1) &&
		    has_sha1_file(refs->old_sha1)) {
			args[i++] = buf;
			snprintf(buf, 50, "^%s", sha1_to_hex(refs->old_sha1));
			buf += 50;
		}
		if (!is_zero_sha1(refs->new_sha1)) {
			args[i++] = buf;
			snprintf(buf, 50, "%s", sha1_to_hex(refs->new_sha1));
		}
		refs = refs->next;
	}
	args[i] = NULL;
	execvp("git-rev-list", args);
	die("git-rev-list exec failed (%s)", strerror(errno));
}

static void rev_list(int fd, struct ref *refs)
{
	int pipe_fd[2];
	pid_t pack_objects_pid;

	if (pipe(pipe_fd) < 0)
		die("rev-list setup: pipe failed");
	pack_objects_pid = fork();
	if (!pack_objects_pid) {
		dup2(pipe_fd[0], 0);
		dup2(fd, 1);
		close(pipe_fd[0]);
		close(pipe_fd[1]);
		close(fd);
		exec_pack_objects();
		die("pack-objects setup failed");
	}
	if (pack_objects_pid < 0)
		die("pack-objects fork failed");
	dup2(pipe_fd[1], 1);
	close(pipe_fd[0]);
	close(pipe_fd[1]);
	close(fd);
	exec_rev_list(refs);
}

static int pack_objects(int fd, struct ref *refs)
{
	pid_t rev_list_pid;

	rev_list_pid = fork();
	if (!rev_list_pid) {
		rev_list(fd, refs);
		die("rev-list setup failed");
	}
	if (rev_list_pid < 0)
		die("rev-list fork failed");
	/*
	 * We don't wait for the rev-list pipeline in the parent:
	 * we end up waiting for the other end instead
	 */
	return 0;
}

static void unmark_and_free(struct commit_list *list, unsigned int mark)
{
	while (list) {
		struct commit_list *temp = list;
		temp->item->object.flags &= ~mark;
		list = temp->next;
		free(temp);
	}
}

static int ref_newer(const unsigned char *new_sha1,
		     const unsigned char *old_sha1)
{
	struct object *o;
	struct commit *old, *new;
	struct commit_list *list, *used;
	int found = 0;

	/* Both new and old must be commit-ish and new is descendant of
	 * old.  Otherwise we require --force.
	 */
	o = deref_tag(parse_object(old_sha1), NULL, 0);
	if (!o || o->type != commit_type)
		return 0;
	old = (struct commit *) o;

	o = deref_tag(parse_object(new_sha1), NULL, 0);
	if (!o || o->type != commit_type)
		return 0;
	new = (struct commit *) o;

	if (parse_commit(new) < 0)
		return 0;

	used = list = NULL;
	commit_list_insert(new, &list);
	while (list) {
		new = pop_most_recent_commit(&list, 1);
		commit_list_insert(new, &used);
		if (new == old) {
			found = 1;
			break;
		}
	}
	unmark_and_free(list, 1);
	unmark_and_free(used, 1);
	return found;
}

static struct ref *local_refs, **local_tail;
static struct ref *remote_refs, **remote_tail;

static int one_local_ref(const char *refname, const unsigned char *sha1)
{
	struct ref *ref;
	int len = strlen(refname) + 1;
	ref = xcalloc(1, sizeof(*ref) + len);
	memcpy(ref->new_sha1, sha1, 20);
	memcpy(ref->name, refname, len);
	*local_tail = ref;
	local_tail = &ref->next;
	return 0;
}

static void get_local_heads(void)
{
	local_tail = &local_refs;
	for_each_ref(one_local_ref);
}

static int send_pack(int in, int out, int nr_refspec, char **refspec)
{
	struct ref *ref;
	int new_refs;

	/* No funny business with the matcher */
	remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, 1);
	get_local_heads();

	/* match them up */
	if (!remote_tail)
		remote_tail = &remote_refs;
	if (match_refs(local_refs, remote_refs, &remote_tail,
		       nr_refspec, refspec, send_all))
		return -1;
	/*
	 * Finally, tell the other end!
	 */
	new_refs = 0;
	for (ref = remote_refs; ref; ref = ref->next) {
		char old_hex[60], *new_hex;<commit_msg>Warn when send-pack does nothing<commit_after>#include "cache.h"
#include "commit.h"
#include "tag.h"
#include "refs.h"
#include "pkt-line.h"

static const char send_pack_usage[] =
"git-send-pack [--all] [--exec=git-receive-pack] <remote> [<head>...]\n"
"  --all and explicit <head> specification are mutually exclusive.";
static const char *exec = "git-receive-pack";
static int send_all = 0;
static int force_update = 0;

static int is_zero_sha1(const unsigned char *sha1)
{
	int i;

	for (i = 0; i < 20; i++) {
		if (*sha1++)
			return 0;
	}
	return 1;
}

static void exec_pack_objects(void)
{
	static char *args[] = {
		"git-pack-objects",
		"--stdout",
		NULL
	};
	execvp("git-pack-objects", args);
	die("git-pack-objects exec failed (%s)", strerror(errno));
}

static void exec_rev_list(struct ref *refs)
{
	static char *args[1000];
	int i = 0;

	args[i++] = "git-rev-list";	/* 0 */
	args[i++] = "--objects";	/* 1 */
	while (refs) {
		char *buf = malloc(100);
		if (i > 900)
			die("git-rev-list environment overflow");
		if (!is_zero_sha1(refs->old_sha1) &&
		    has_sha1_file(refs->old_sha1)) {
			args[i++] = buf;
			snprintf(buf, 50, "^%s", sha1_to_hex(refs->old_sha1));
			buf += 50;
		}
		if (!is_zero_sha1(refs->new_sha1)) {
			args[i++] = buf;
			snprintf(buf, 50, "%s", sha1_to_hex(refs->new_sha1));
		}
		refs = refs->next;
	}
	args[i] = NULL;
	execvp("git-rev-list", args);
	die("git-rev-list exec failed (%s)", strerror(errno));
}

static void rev_list(int fd, struct ref *refs)
{
	int pipe_fd[2];
	pid_t pack_objects_pid;

	if (pipe(pipe_fd) < 0)
		die("rev-list setup: pipe failed");
	pack_objects_pid = fork();
	if (!pack_objects_pid) {
		dup2(pipe_fd[0], 0);
		dup2(fd, 1);
		close(pipe_fd[0]);
		close(pipe_fd[1]);
		close(fd);
		exec_pack_objects();
		die("pack-objects setup failed");
	}
	if (pack_objects_pid < 0)
		die("pack-objects fork failed");
	dup2(pipe_fd[1], 1);
	close(pipe_fd[0]);
	close(pipe_fd[1]);
	close(fd);
	exec_rev_list(refs);
}

static int pack_objects(int fd, struct ref *refs)
{
	pid_t rev_list_pid;

	rev_list_pid = fork();
	if (!rev_list_pid) {
		rev_list(fd, refs);
		die("rev-list setup failed");
	}
	if (rev_list_pid < 0)
		die("rev-list fork failed");
	/*
	 * We don't wait for the rev-list pipeline in the parent:
	 * we end up waiting for the other end instead
	 */
	return 0;
}

static void unmark_and_free(struct commit_list *list, unsigned int mark)
{
	while (list) {
		struct commit_list *temp = list;
		temp->item->object.flags &= ~mark;
		list = temp->next;
		free(temp);
	}
}

static int ref_newer(const unsigned char *new_sha1,
		     const unsigned char *old_sha1)
{
	struct object *o;
	struct commit *old, *new;
	struct commit_list *list, *used;
	int found = 0;

	/* Both new and old must be commit-ish and new is descendant of
	 * old.  Otherwise we require --force.
	 */
	o = deref_tag(parse_object(old_sha1), NULL, 0);
	if (!o || o->type != commit_type)
		return 0;
	old = (struct commit *) o;

	o = deref_tag(parse_object(new_sha1), NULL, 0);
	if (!o || o->type != commit_type)
		return 0;
	new = (struct commit *) o;

	if (parse_commit(new) < 0)
		return 0;

	used = list = NULL;
	commit_list_insert(new, &list);
	while (list) {
		new = pop_most_recent_commit(&list, 1);
		commit_list_insert(new, &used);
		if (new == old) {
			found = 1;
			break;
		}
	}
	unmark_and_free(list, 1);
	unmark_and_free(used, 1);
	return found;
}

static struct ref *local_refs, **local_tail;
static struct ref *remote_refs, **remote_tail;

static int one_local_ref(const char *refname, const unsigned char *sha1)
{
	struct ref *ref;
	int len = strlen(refname) + 1;
	ref = xcalloc(1, sizeof(*ref) + len);
	memcpy(ref->new_sha1, sha1, 20);
	memcpy(ref->name, refname, len);
	*local_tail = ref;
	local_tail = &ref->next;
	return 0;
}

static void get_local_heads(void)
{
	local_tail = &local_refs;
	for_each_ref(one_local_ref);
}

static int send_pack(int in, int out, int nr_refspec, char **refspec)
{
	struct ref *ref;
	int new_refs;

	/* No funny business with the matcher */
	remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, 1);
	get_local_heads();

	/* match them up */
	if (!remote_tail)
		remote_tail = &remote_refs;
	if (match_refs(local_refs, remote_refs, &remote_tail,
		       nr_refspec, refspec, send_all))
		return -1;

	if (!remote_refs) {
		fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
		return 0;
	}

	/*
	 * Finally, tell the other end!
	 */
	new_refs = 0;
	for (ref = remote_refs; ref; ref = ref->next) {
		char old_hex[60], *new_hex;
{'fraction_non_alphanumeric': 0.16204738489047832, 'fraction_numerical': 0.01911041573535986, 'mean_word_length': 3.9716666666666667, 'pattern_counts': {'":': 0, '<': 19, '<?xml version=': 0, '>': 41, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2164471', 'n_tokens_mistral': 3845, 'n_tokens_neox': 3519, 'n_words': 915}