[thirdparty/git.git] / builtin-init-db.c

/*
 * GIT - The information manager from hell
 *
 * Copyright (C) Linus Torvalds, 2005
 */
#include "cache.h"
#include "builtin.h"

#ifndef DEFAULT_GIT_TEMPLATE_DIR
#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
#endif

#ifdef NO_TRUSTABLE_FILEMODE
#define TEST_FILEMODE 0
#else
#define TEST_FILEMODE 1
#endif

static void safe_create_dir(const char *dir, int share)
{
	if (mkdir(dir, 0777) < 0) {
		if (errno != EEXIST) {
			perror(dir);
			exit(1);
		}
	}
	else if (share && adjust_shared_perm(dir))
		die("Could not make %s writable by group\n", dir);
}

static int copy_file(const char *dst, const char *src, int mode)
{
	int fdi, fdo, status;

	mode = (mode & 0111) ? 0777 : 0666;
	if ((fdi = open(src, O_RDONLY)) < 0)
		return fdi;
	if ((fdo = open(dst, O_WRONLY | O_CREAT | O_EXCL, mode)) < 0) {
		close(fdi);
		return fdo;
	}
	status = copy_fd(fdi, fdo);
	if (close(fdo) != 0)
		return error("%s: write error: %s", dst, strerror(errno));

	if (!status && adjust_shared_perm(dst))
		return -1;

	return status;
}

static void copy_templates_1(char *path, int baselen,
			     char *template, int template_baselen,
			     DIR *dir)
{
	struct dirent *de;

	/* Note: if ".git/hooks" file exists in the repository being
	 * re-initialized, /etc/core-git/templates/hooks/update would
	 * cause git-init to fail here.  I think this is sane but
	 * it means that the set of templates we ship by default, along
	 * with the way the namespace under .git/ is organized, should
	 * be really carefully chosen.
	 */
	safe_create_dir(path, 1);
	while ((de = readdir(dir)) != NULL) {
		struct stat st_git, st_template;
		int namelen;
		int exists = 0;

		if (de->d_name[0] == '.')
			continue;
		namelen = strlen(de->d_name);
		if ((PATH_MAX <= baselen + namelen) ||
		    (PATH_MAX <= template_baselen + namelen))
			die("insanely long template name %s", de->d_name);
		memcpy(path + baselen, de->d_name, namelen+1);
		memcpy(template + template_baselen, de->d_name, namelen+1);
		if (lstat(path, &st_git)) {
			if (errno != ENOENT)
				die("cannot stat %s", path);
		}
		else
			exists = 1;

		if (lstat(template, &st_template))
			die("cannot stat template %s", template);

		if (S_ISDIR(st_template.st_mode)) {
			DIR *subdir = opendir(template);
			int baselen_sub = baselen + namelen;
			int template_baselen_sub = template_baselen + namelen;
			if (!subdir)
				die("cannot opendir %s", template);
			path[baselen_sub++] =
				template[template_baselen_sub++] = '/';
			path[baselen_sub] =
				template[template_baselen_sub] = 0;
			copy_templates_1(path, baselen_sub,
					 template, template_baselen_sub,
					 subdir);
			closedir(subdir);
		}
		else if (exists)
			continue;
		else if (S_ISLNK(st_template.st_mode)) {
			char lnk[256];
			int len;
			len = readlink(template, lnk, sizeof(lnk));
			if (len < 0)
				die("cannot readlink %s", template);
			if (sizeof(lnk) <= len)
				die("insanely long symlink %s", template);
			lnk[len] = 0;
			if (symlink(lnk, path))
				die("cannot symlink %s %s", lnk, path);
		}
		else if (S_ISREG(st_template.st_mode)) {
			if (copy_file(path, template, st_template.st_mode))
				die("cannot copy %s to %s", template, path);
		}
		else
			error("ignoring template %s", template);
	}
}

static void copy_templates(const char *git_dir, int len, const char *template_dir)
{
	char path[PATH_MAX];
	char template_path[PATH_MAX];
	int template_len;
	DIR *dir;

	if (!template_dir) {
		template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
		if (!template_dir)
			template_dir = DEFAULT_GIT_TEMPLATE_DIR;
	}
	strcpy(template_path, template_dir);
	template_len = strlen(template_path);
	if (template_path[template_len-1] != '/') {
		template_path[template_len++] = '/';
		template_path[template_len] = 0;
	}
	dir = opendir(template_path);
	if (!dir) {
		fprintf(stderr, "warning: templates not found %s\n",
			template_dir);
		return;
	}

	/* Make sure that template is from the correct vintage */
	strcpy(template_path + template_len, "config");
	repository_format_version = 0;
	git_config_from_file(check_repository_format_version,
			     template_path);
	template_path[template_len] = 0;

	if (repository_format_version &&
	    repository_format_version != GIT_REPO_VERSION) {
		fprintf(stderr, "warning: not copying templates of "
			"a wrong format version %d from '%s'\n",
			repository_format_version,
			template_dir);
		closedir(dir);
		return;
	}

	memcpy(path, git_dir, len);
	path[len] = 0;
	copy_templates_1(path, len,
			 template_path, template_len,
			 dir);
	closedir(dir);
}

/*
 * Get the full path to the working tree specified in $GIT_WORK_TREE
 * or NULL if no working tree is specified.
 */
static const char *get_work_tree(void)
{
	const char *git_work_tree;
	char cwd[PATH_MAX];
	static char worktree[PATH_MAX];

	git_work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
	if (!git_work_tree)
		return NULL;
	if (!getcwd(cwd, sizeof(cwd)))
		die("Unable to read current working directory");
	if (chdir(git_work_tree))
		die("Cannot change directory to specified working tree '%s'",
			git_work_tree);
	if (git_work_tree[0] != '/') {
		if (!getcwd(worktree, sizeof(worktree)))
			die("Unable to read current working directory");
		git_work_tree = worktree;
	}
	if (chdir(cwd))
		die("Cannot come back to cwd");
	return git_work_tree;
}

static int create_default_files(const char *git_dir, const char *git_work_tree,
	const char *template_path)
{
	unsigned len = strlen(git_dir);
	static char path[PATH_MAX];
	unsigned char sha1[20];
	struct stat st1;
	char repo_version_string[10];
	int reinit;
	int filemode;

	if (len > sizeof(path)-50)
		die("insane git directory %s", git_dir);
	memcpy(path, git_dir, len);

	if (len && path[len-1] != '/')
		path[len++] = '/';

	/*
	 * Create .git/refs/{heads,tags}
	 */
	strcpy(path + len, "refs");
	safe_create_dir(path, 1);
	strcpy(path + len, "refs/heads");
	safe_create_dir(path, 1);
	strcpy(path + len, "refs/tags");
	safe_create_dir(path, 1);

	/* First copy the templates -- we might have the default
	 * config file there, in which case we would want to read
	 * from it after installing.
	 */
	path[len] = 0;
	copy_templates(path, len, template_path);

	git_config(git_default_config);

	/*
	 * We would have created the above under user's umask -- under
	 * shared-repository settings, we would need to fix them up.
	 */
	if (shared_repository) {
		path[len] = 0;
		adjust_shared_perm(path);
		strcpy(path + len, "refs");
		adjust_shared_perm(path);
		strcpy(path + len, "refs/heads");
		adjust_shared_perm(path);
		strcpy(path + len, "refs/tags");
		adjust_shared_perm(path);
	}

	/*
	 * Create the default symlink from ".git/HEAD" to the "master"
	 * branch, if it does not exist yet.
	 */
	strcpy(path + len, "HEAD");
	reinit = !read_ref("HEAD", sha1);
	if (!reinit) {
		if (create_symref("HEAD", "refs/heads/master", NULL) < 0)
			exit(1);
	}

	/* This forces creation of new config file */
	sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
	git_config_set("core.repositoryformatversion", repo_version_string);

	path[len] = 0;
	strcpy(path + len, "config");

	/* Check filemode trustability */
	filemode = TEST_FILEMODE;
	if (TEST_FILEMODE && !lstat(path, &st1)) {
		struct stat st2;
		filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
				!lstat(path, &st2) &&
				st1.st_mode != st2.st_mode);
	}
	git_config_set("core.filemode", filemode ? "true" : "false");

	if (is_bare_repository() && !git_work_tree) {
		git_config_set("core.bare", "true");
	}
	else {
		git_config_set("core.bare", "false");
		/* allow template config file to override the default */
		if (log_all_ref_updates == -1)
		    git_config_set("core.logallrefupdates", "true");
		if (git_work_tree)
			git_config_set("core.worktree", git_work_tree);
	}
	return reinit;
}

static const char init_db_usage[] =
"git-init [-q | --quiet] [--template=<template-directory>] [--shared]";

/*
 * If you want to, you can share the DB area with any number of branches.
 * That has advantages: you can save space by sharing all the SHA1 objects.
 * On the other hand, it might just make lookup slower and messier. You
 * be the judge.  The default case is to have one DB per managed directory.
 */
int cmd_init_db(int argc, const char **argv, const char *prefix)
{
	const char *git_dir;
	const char *git_work_tree;
	const char *sha1_dir;
	const char *template_dir = NULL;
	char *path;
	int len, i, reinit;
	int quiet = 0;

	for (i = 1; i < argc; i++, argv++) {
		const char *arg = argv[1];
		if (!prefixcmp(arg, "--template="))
			template_dir = arg+11;
		else if (!strcmp(arg, "--shared"))
			shared_repository = PERM_GROUP;
		else if (!prefixcmp(arg, "--shared="))
			shared_repository = git_config_perm("arg", arg+9);
		else if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet"))
		        quiet = 1;
		else
			usage(init_db_usage);
	}

	git_work_tree = get_work_tree();

	/*
	 * Set up the default .git directory contents
	 */
	git_dir = getenv(GIT_DIR_ENVIRONMENT);
	if (!git_dir)
		git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
	safe_create_dir(git_dir, 0);

	/* Check to see if the repository version is right.
	 * Note that a newly created repository does not have
	 * config file, so this will not fail.  What we are catching
	 * is an attempt to reinitialize new repository with an old tool.
	 */
	check_repository_format();

	reinit = create_default_files(git_dir, git_work_tree, template_dir);

	/*
	 * And set up the object store.
	 */
	sha1_dir = get_object_directory();
	len = strlen(sha1_dir);
	path = xmalloc(len + 40);
	memcpy(path, sha1_dir, len);

	safe_create_dir(sha1_dir, 1);
	strcpy(path+len, "/pack");
	safe_create_dir(path, 1);
	strcpy(path+len, "/info");
	safe_create_dir(path, 1);

	if (shared_repository) {
		char buf[10];
		/* We do not spell "group" and such, so that
		 * the configuration can be read by older version
		 * of git.
		 */
		sprintf(buf, "%d", shared_repository);
		git_config_set("core.sharedrepository", buf);
		git_config_set("receive.denyNonFastforwards", "true");
	}

	if (!quiet)
		printf("%s%s Git repository in %s/\n",
		       reinit ? "Reinitialized existing" : "Initialized empty",
		       shared_repository ? " shared" : "",
		       git_dir);

	return 0;
}
Commit	Line	Data
8bc9a0c7 LT	1	/*
	2	* GIT - The information manager from hell
	3	*
	4	* Copyright (C) Linus Torvalds, 2005
	5	*/
e83c5163	6	#include "cache.h"
c3c8835f	7	#include "builtin.h"
e83c5163	8
d3af621b	9	#ifndef DEFAULT_GIT_TEMPLATE_DIR
d52fd42a	10	#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
d3af621b JH	11	#endif
d3af621b JH	12
c869753e SP	13	#ifdef NO_TRUSTABLE_FILEMODE
	14	#define TEST_FILEMODE 0
	15	#else
	16	#define TEST_FILEMODE 1
	17	#endif
	18
af6e277c	19	static void safe_create_dir(const char *dir, int share)
cb126d8d	20	{
f312de01	21	if (mkdir(dir, 0777) < 0) {
cb126d8d ZW	22	if (errno != EEXIST) {
	23	perror(dir);
	24	exit(1);
	25	}
	26	}
af6e277c JS	27	else if (share && adjust_shared_perm(dir))
af6e277c JS	28	die("Could not make %s writable by group\n", dir);
cb126d8d ZW	29	}
cb126d8d ZW	30
8d5afef0 JH	31	static int copy_file(const char dst, const char src, int mode)
8d5afef0 JH	32	{
32276c80	33	int fdi, fdo, status;
8d5afef0 JH	34
	35	mode = (mode & 0111) ? 0777 : 0666;
	36	if ((fdi = open(src, O_RDONLY)) < 0)
	37	return fdi;
	38	if ((fdo = open(dst, O_WRONLY \| O_CREAT \| O_EXCL, mode)) < 0) {
	39	close(fdi);
	40	return fdo;
	41	}
32276c80	42	status = copy_fd(fdi, fdo);
91c8d590 JM	43	if (close(fdo) != 0)
91c8d590 JM	44	return error("%s: write error: %s", dst, strerror(errno));
af6e277c JS	45
	46	if (!status && adjust_shared_perm(dst))
	47	return -1;
	48
32276c80	49	return status;
8d5afef0 JH	50	}
	51
	52	static void copy_templates_1(char *path, int baselen,
	53	char *template, int template_baselen,
	54	DIR *dir)
	55	{
	56	struct dirent *de;
	57
	58	/* Note: if ".git/hooks" file exists in the repository being
	59	* re-initialized, /etc/core-git/templates/hooks/update would
5c94f87e	60	* cause git-init to fail here. I think this is sane but
8d5afef0 JH	61	* it means that the set of templates we ship by default, along
	62	* with the way the namespace under .git/ is organized, should
	63	* be really carefully chosen.
	64	*/
af6e277c	65	safe_create_dir(path, 1);
8d5afef0 JH	66	while ((de = readdir(dir)) != NULL) {
	67	struct stat st_git, st_template;
	68	int namelen;
	69	int exists = 0;
	70
	71	if (de->d_name[0] == '.')
	72	continue;
	73	namelen = strlen(de->d_name);
	74	if ((PATH_MAX <= baselen + namelen) \|\|
	75	(PATH_MAX <= template_baselen + namelen))
	76	die("insanely long template name %s", de->d_name);
	77	memcpy(path + baselen, de->d_name, namelen+1);
	78	memcpy(template + template_baselen, de->d_name, namelen+1);
	79	if (lstat(path, &st_git)) {
	80	if (errno != ENOENT)
	81	die("cannot stat %s", path);
	82	}
	83	else
	84	exists = 1;
	85
	86	if (lstat(template, &st_template))
	87	die("cannot stat template %s", template);
	88
	89	if (S_ISDIR(st_template.st_mode)) {
	90	DIR *subdir = opendir(template);
	91	int baselen_sub = baselen + namelen;
	92	int template_baselen_sub = template_baselen + namelen;
	93	if (!subdir)
	94	die("cannot opendir %s", template);
	95	path[baselen_sub++] =
	96	template[template_baselen_sub++] = '/';
	97	path[baselen_sub] =
	98	template[template_baselen_sub] = 0;
	99	copy_templates_1(path, baselen_sub,
	100	template, template_baselen_sub,
	101	subdir);
	102	closedir(subdir);
	103	}
	104	else if (exists)
	105	continue;
	106	else if (S_ISLNK(st_template.st_mode)) {
	107	char lnk[256];
	108	int len;
	109	len = readlink(template, lnk, sizeof(lnk));
	110	if (len < 0)
	111	die("cannot readlink %s", template);
	112	if (sizeof(lnk) <= len)
	113	die("insanely long symlink %s", template);
	114	lnk[len] = 0;
	115	if (symlink(lnk, path))
	116	die("cannot symlink %s %s", lnk, path);
	117	}
	118	else if (S_ISREG(st_template.st_mode)) {
	119	if (copy_file(path, template, st_template.st_mode))
	120	die("cannot copy %s to %s", template, path);
	121	}
	122	else
	123	error("ignoring template %s", template);
	124	}
	125	}
	126
c3c8835f	127	static void copy_templates(const char git_dir, int len, const char template_dir)
8d5afef0 JH	128	{
	129	char path[PATH_MAX];
	130	char template_path[PATH_MAX];
d3af621b	131	int template_len;
8d5afef0 JH	132	DIR *dir;
8d5afef0 JH	133
8683a45d	134	if (!template_dir) {
d4ebc36c	135	template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
8683a45d JS	136	if (!template_dir)
	137	template_dir = DEFAULT_GIT_TEMPLATE_DIR;
	138	}
8d5afef0 JH	139	strcpy(template_path, template_dir);
	140	template_len = strlen(template_path);
	141	if (template_path[template_len-1] != '/') {
	142	template_path[template_len++] = '/';
	143	template_path[template_len] = 0;
	144	}
8d5afef0	145	dir = opendir(template_path);
d3af621b JH	146	if (!dir) {
	147	fprintf(stderr, "warning: templates not found %s\n",
	148	template_dir);
8d5afef0	149	return;
d3af621b JH	150	}
d3af621b JH	151
4f629539 JH	152	/* Make sure that template is from the correct vintage */
	153	strcpy(template_path + template_len, "config");
	154	repository_format_version = 0;
	155	git_config_from_file(check_repository_format_version,
	156	template_path);
	157	template_path[template_len] = 0;
	158
	159	if (repository_format_version &&
	160	repository_format_version != GIT_REPO_VERSION) {
	161	fprintf(stderr, "warning: not copying templates of "
	162	"a wrong format version %d from '%s'\n",
	163	repository_format_version,
	164	template_dir);
	165	closedir(dir);
	166	return;
	167	}
	168
d3af621b	169	memcpy(path, git_dir, len);
1f961c19	170	path[len] = 0;
8d5afef0 JH	171	copy_templates_1(path, len,
	172	template_path, template_len,
	173	dir);
	174	closedir(dir);
	175	}
	176
ef6f0af2 ML	177	/*
	178	* Get the full path to the working tree specified in $GIT_WORK_TREE
	179	* or NULL if no working tree is specified.
	180	*/
	181	static const char *get_work_tree(void)
	182	{
	183	const char *git_work_tree;
	184	char cwd[PATH_MAX];
	185	static char worktree[PATH_MAX];
	186
	187	git_work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
	188	if (!git_work_tree)
	189	return NULL;
	190	if (!getcwd(cwd, sizeof(cwd)))
	191	die("Unable to read current working directory");
	192	if (chdir(git_work_tree))
	193	die("Cannot change directory to specified working tree '%s'",
	194	git_work_tree);
	195	if (git_work_tree[0] != '/') {
	196	if (!getcwd(worktree, sizeof(worktree)))
	197	die("Unable to read current working directory");
	198	git_work_tree = worktree;
	199	}
	200	if (chdir(cwd))
	201	die("Cannot come back to cwd");
	202	return git_work_tree;
	203	}
	204
	205	static int create_default_files(const char git_dir, const char git_work_tree,
	206	const char *template_path)
cad88fdf LT	207	{
	208	unsigned len = strlen(git_dir);
	209	static char path[PATH_MAX];
8098a178	210	unsigned char sha1[20];
4f629539 JH	211	struct stat st1;
4f629539 JH	212	char repo_version_string[10];
ef0a89a6	213	int reinit;
c869753e	214	int filemode;
cad88fdf LT	215
	216	if (len > sizeof(path)-50)
	217	die("insane git directory %s", git_dir);
	218	memcpy(path, git_dir, len);
	219
	220	if (len && path[len-1] != '/')
	221	path[len++] = '/';
	222
	223	/*
	224	* Create .git/refs/{heads,tags}
	225	*/
	226	strcpy(path + len, "refs");
af6e277c	227	safe_create_dir(path, 1);
cad88fdf	228	strcpy(path + len, "refs/heads");
af6e277c	229	safe_create_dir(path, 1);
cad88fdf	230	strcpy(path + len, "refs/tags");
af6e277c	231	safe_create_dir(path, 1);
cad88fdf	232
4f629539 JH	233	/* First copy the templates -- we might have the default
	234	* config file there, in which case we would want to read
	235	* from it after installing.
	236	*/
	237	path[len] = 0;
	238	copy_templates(path, len, template_path);
	239
	240	git_config(git_default_config);
	241
138086a7 JH	242	/*
	243	* We would have created the above under user's umask -- under
	244	* shared-repository settings, we would need to fix them up.
	245	*/
	246	if (shared_repository) {
	247	path[len] = 0;
	248	adjust_shared_perm(path);
	249	strcpy(path + len, "refs");
	250	adjust_shared_perm(path);
	251	strcpy(path + len, "refs/heads");
	252	adjust_shared_perm(path);
	253	strcpy(path + len, "refs/tags");
	254	adjust_shared_perm(path);
	255	}
	256
cad88fdf LT	257	/*
cad88fdf LT	258	* Create the default symlink from ".git/HEAD" to the "master"
8098a178	259	* branch, if it does not exist yet.
cad88fdf LT	260	*/
cad88fdf LT	261	strcpy(path + len, "HEAD");
ef0a89a6 SP	262	reinit = !read_ref("HEAD", sha1);
ef0a89a6 SP	263	if (!reinit) {
8b5157e4	264	if (create_symref("HEAD", "refs/heads/master", NULL) < 0)
cad88fdf	265	exit(1);
cad88fdf	266	}
e24317b4	267
4f629539 JH	268	/* This forces creation of new config file */
	269	sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
	270	git_config_set("core.repositoryformatversion", repo_version_string);
	271
	272	path[len] = 0;
e24317b4	273	strcpy(path + len, "config");
4f629539 JH	274
4f629539 JH	275	/* Check filemode trustability */
c869753e SP	276	filemode = TEST_FILEMODE;
c869753e SP	277	if (TEST_FILEMODE && !lstat(path, &st1)) {
4f629539	278	struct stat st2;
c869753e	279	filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
4f629539 JH	280	!lstat(path, &st2) &&
4f629539 JH	281	st1.st_mode != st2.st_mode);
e24317b4	282	}
c869753e	283	git_config_set("core.filemode", filemode ? "true" : "false");
ef0a89a6	284
ef6f0af2	285	if (is_bare_repository() && !git_work_tree) {
7d1864ce JH	286	git_config_set("core.bare", "true");
	287	}
	288	else {
	289	git_config_set("core.bare", "false");
196055c2 AR	290	/* allow template config file to override the default */
	291	if (log_all_ref_updates == -1)
	292	git_config_set("core.logallrefupdates", "true");
ef6f0af2 ML	293	if (git_work_tree)
ef6f0af2 ML	294	git_config_set("core.worktree", git_work_tree);
7d1864ce	295	}
ef0a89a6	296	return reinit;
cad88fdf LT	297	}
cad88fdf LT	298
d3af621b	299	static const char init_db_usage[] =
4576518d	300	"git-init [-q \| --quiet] [--template=<template-directory>] [--shared]";
d3af621b	301
4696cb93 ZW	302	/*
	303	* If you want to, you can share the DB area with any number of branches.
	304	* That has advantages: you can save space by sharing all the SHA1 objects.
	305	* On the other hand, it might just make lookup slower and messier. You
	306	* be the judge. The default case is to have one DB per managed directory.
	307	*/
a633fca0	308	int cmd_init_db(int argc, const char *argv, const char prefix)
e83c5163	309	{
cad88fdf	310	const char *git_dir;
ef6f0af2	311	const char *git_work_tree;
d19938ab	312	const char *sha1_dir;
c3c8835f TH	313	const char *template_dir = NULL;
c3c8835f TH	314	char *path;
ef0a89a6	315	int len, i, reinit;
4576518d	316	int quiet = 0;
e83c5163	317
d3af621b	318	for (i = 1; i < argc; i++, argv++) {
c3c8835f	319	const char *arg = argv[1];
cc44c765	320	if (!prefixcmp(arg, "--template="))
d3af621b	321	template_dir = arg+11;
af6e277c	322	else if (!strcmp(arg, "--shared"))
94df2506	323	shared_repository = PERM_GROUP;
cc44c765	324	else if (!prefixcmp(arg, "--shared="))
94df2506	325	shared_repository = git_config_perm("arg", arg+9);
4576518d JO	326	else if (!strcmp(arg, "-q") \|\| !strcmp(arg, "--quiet"))
4576518d JO	327	quiet = 1;
d3af621b	328	else
8cdf3364	329	usage(init_db_usage);
d3af621b JH	330	}
d3af621b JH	331
ef6f0af2 ML	332	git_work_tree = get_work_tree();
ef6f0af2 ML	333
cad88fdf LT	334	/*
	335	* Set up the default .git directory contents
	336	*/
a9ab586a	337	git_dir = getenv(GIT_DIR_ENVIRONMENT);
ef0a89a6	338	if (!git_dir)
cad88fdf	339	git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
af6e277c	340	safe_create_dir(git_dir, 0);
4f629539 JH	341
	342	/* Check to see if the repository version is right.
	343	* Note that a newly created repository does not have
	344	* config file, so this will not fail. What we are catching
	345	* is an attempt to reinitialize new repository with an old tool.
	346	*/
	347	check_repository_format();
	348
ef6f0af2	349	reinit = create_default_files(git_dir, git_work_tree, template_dir);
cad88fdf LT	350
	351	/*
	352	* And set up the object store.
	353	*/
	354	sha1_dir = get_object_directory();
e83c5163	355	len = strlen(sha1_dir);
812666c8	356	path = xmalloc(len + 40);
e83c5163	357	memcpy(path, sha1_dir, len);
cb126d8d	358
af6e277c	359	safe_create_dir(sha1_dir, 1);
f49fb35d	360	strcpy(path+len, "/pack");
af6e277c	361	safe_create_dir(path, 1);
d57306c7	362	strcpy(path+len, "/info");
af6e277c JS	363	safe_create_dir(path, 1);
af6e277c JS	364
94df2506 JH	365	if (shared_repository) {
	366	char buf[10];
	367	/* We do not spell "group" and such, so that
	368	* the configuration can be read by older version
	369	* of git.
	370	*/
	371	sprintf(buf, "%d", shared_repository);
	372	git_config_set("core.sharedrepository", buf);
11031d7e	373	git_config_set("receive.denyNonFastforwards", "true");
94df2506	374	}
af6e277c	375
4576518d JO	376	if (!quiet)
	377	printf("%s%s Git repository in %s/\n",
	378	reinit ? "Reinitialized existing" : "Initialized empty",
	379	shared_repository ? " shared" : "",
	380	git_dir);
ef0a89a6	381
e83c5163 LT	382	return 0;
e83c5163 LT	383	}