mirror of
https://github.com/git/git.git
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eea0e59ffb
Each of these were checked with gcc -E -I. ${SOURCE_FILE} | grep ${HEADER_FILE} to ensure that removing the direct inclusion of the header actually resulted in that header no longer being included at all (i.e. that no other header pulled it in transitively). ...except for a few cases where we verified that although the header was brought in transitively, nothing from it was directly used in that source file. These cases were: * builtin/credential-cache.c * builtin/pull.c * builtin/send-pack.c Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
240 lines
6.8 KiB
C
240 lines
6.8 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "builtin.h"
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#include "abspath.h"
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#include "environment.h"
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#include "gettext.h"
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#include "object-file.h"
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#include "parse-options.h"
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#include "path.h"
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#include "setup.h"
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#include "strbuf.h"
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static int guess_repository_type(const char *git_dir)
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{
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const char *slash;
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char *cwd;
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int cwd_is_git_dir;
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/*
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* "GIT_DIR=. git init" is always bare.
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* "GIT_DIR=`pwd` git init" too.
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*/
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if (!strcmp(".", git_dir))
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return 1;
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cwd = xgetcwd();
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cwd_is_git_dir = !strcmp(git_dir, cwd);
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free(cwd);
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if (cwd_is_git_dir)
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return 1;
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/*
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* "GIT_DIR=.git or GIT_DIR=something/.git is usually not.
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*/
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if (!strcmp(git_dir, ".git"))
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return 0;
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slash = strrchr(git_dir, '/');
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if (slash && !strcmp(slash, "/.git"))
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return 0;
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/*
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* Otherwise it is often bare. At this point
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* we are just guessing.
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*/
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return 1;
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}
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static int shared_callback(const struct option *opt, const char *arg, int unset)
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{
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BUG_ON_OPT_NEG(unset);
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*((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP;
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return 0;
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}
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static const char *const init_db_usage[] = {
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N_("git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
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" [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
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" [-b <branch-name> | --initial-branch=<branch-name>]\n"
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" [--shared[=<permissions>]] [<directory>]"),
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NULL
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};
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/*
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* If you want to, you can share the DB area with any number of branches.
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* That has advantages: you can save space by sharing all the SHA1 objects.
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* On the other hand, it might just make lookup slower and messier. You
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* be the judge. The default case is to have one DB per managed directory.
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*/
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int cmd_init_db(int argc, const char **argv, const char *prefix)
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{
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const char *git_dir;
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const char *real_git_dir = NULL;
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const char *work_tree;
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const char *template_dir = NULL;
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unsigned int flags = 0;
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const char *object_format = NULL;
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const char *initial_branch = NULL;
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int hash_algo = GIT_HASH_UNKNOWN;
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int init_shared_repository = -1;
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const struct option init_db_options[] = {
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OPT_STRING(0, "template", &template_dir, N_("template-directory"),
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N_("directory from which templates will be used")),
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OPT_SET_INT(0, "bare", &is_bare_repository_cfg,
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N_("create a bare repository"), 1),
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{ OPTION_CALLBACK, 0, "shared", &init_shared_repository,
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N_("permissions"),
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N_("specify that the git repository is to be shared amongst several users"),
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PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0},
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OPT_BIT('q', "quiet", &flags, N_("be quiet"), INIT_DB_QUIET),
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OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"),
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N_("separate git dir from working tree")),
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OPT_STRING('b', "initial-branch", &initial_branch, N_("name"),
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N_("override the name of the initial branch")),
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OPT_STRING(0, "object-format", &object_format, N_("hash"),
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N_("specify the hash algorithm to use")),
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OPT_END()
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};
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argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0);
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if (real_git_dir && is_bare_repository_cfg == 1)
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die(_("options '%s' and '%s' cannot be used together"), "--separate-git-dir", "--bare");
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if (real_git_dir && !is_absolute_path(real_git_dir))
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real_git_dir = real_pathdup(real_git_dir, 1);
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if (template_dir && *template_dir && !is_absolute_path(template_dir)) {
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template_dir = absolute_pathdup(template_dir);
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UNLEAK(template_dir);
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}
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if (argc == 1) {
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int mkdir_tried = 0;
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retry:
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if (chdir(argv[0]) < 0) {
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if (!mkdir_tried) {
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int saved;
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/*
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* At this point we haven't read any configuration,
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* and we know shared_repository should always be 0;
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* but just in case we play safe.
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*/
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saved = get_shared_repository();
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set_shared_repository(0);
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switch (safe_create_leading_directories_const(argv[0])) {
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case SCLD_OK:
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case SCLD_PERMS:
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break;
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case SCLD_EXISTS:
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errno = EEXIST;
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/* fallthru */
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default:
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die_errno(_("cannot mkdir %s"), argv[0]);
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break;
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}
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set_shared_repository(saved);
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if (mkdir(argv[0], 0777) < 0)
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die_errno(_("cannot mkdir %s"), argv[0]);
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mkdir_tried = 1;
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goto retry;
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}
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die_errno(_("cannot chdir to %s"), argv[0]);
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}
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} else if (0 < argc) {
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usage(init_db_usage[0]);
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}
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if (is_bare_repository_cfg == 1) {
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char *cwd = xgetcwd();
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setenv(GIT_DIR_ENVIRONMENT, cwd, argc > 0);
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free(cwd);
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}
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if (object_format) {
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hash_algo = hash_algo_by_name(object_format);
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if (hash_algo == GIT_HASH_UNKNOWN)
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die(_("unknown hash algorithm '%s'"), object_format);
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}
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if (init_shared_repository != -1)
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set_shared_repository(init_shared_repository);
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/*
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* GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
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* without --bare. Catch the error early.
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*/
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git_dir = xstrdup_or_null(getenv(GIT_DIR_ENVIRONMENT));
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work_tree = xstrdup_or_null(getenv(GIT_WORK_TREE_ENVIRONMENT));
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if ((!git_dir || is_bare_repository_cfg == 1) && work_tree)
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die(_("%s (or --work-tree=<directory>) not allowed without "
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"specifying %s (or --git-dir=<directory>)"),
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GIT_WORK_TREE_ENVIRONMENT,
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GIT_DIR_ENVIRONMENT);
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/*
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* Set up the default .git directory contents
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*/
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if (!git_dir)
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git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
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/*
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* When --separate-git-dir is used inside a linked worktree, take
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* care to ensure that the common .git/ directory is relocated, not
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* the worktree-specific .git/worktrees/<id>/ directory.
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*/
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if (real_git_dir) {
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int err;
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const char *p;
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struct strbuf sb = STRBUF_INIT;
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p = read_gitfile_gently(git_dir, &err);
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if (p && get_common_dir(&sb, p)) {
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struct strbuf mainwt = STRBUF_INIT;
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strbuf_addbuf(&mainwt, &sb);
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strbuf_strip_suffix(&mainwt, "/.git");
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if (chdir(mainwt.buf) < 0)
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die_errno(_("cannot chdir to %s"), mainwt.buf);
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strbuf_release(&mainwt);
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git_dir = strbuf_detach(&sb, NULL);
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}
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strbuf_release(&sb);
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}
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if (is_bare_repository_cfg < 0)
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is_bare_repository_cfg = guess_repository_type(git_dir);
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if (!is_bare_repository_cfg) {
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const char *git_dir_parent = strrchr(git_dir, '/');
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if (git_dir_parent) {
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char *rel = xstrndup(git_dir, git_dir_parent - git_dir);
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git_work_tree_cfg = real_pathdup(rel, 1);
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free(rel);
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}
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if (!git_work_tree_cfg)
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git_work_tree_cfg = xgetcwd();
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if (work_tree)
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set_git_work_tree(work_tree);
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else
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set_git_work_tree(git_work_tree_cfg);
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if (access(get_git_work_tree(), X_OK))
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die_errno (_("Cannot access work tree '%s'"),
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get_git_work_tree());
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}
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else {
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if (real_git_dir)
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die(_("--separate-git-dir incompatible with bare repository"));
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if (work_tree)
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set_git_work_tree(work_tree);
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}
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UNLEAK(real_git_dir);
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UNLEAK(git_dir);
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UNLEAK(work_tree);
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flags |= INIT_DB_EXIST_OK;
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return init_db(git_dir, real_git_dir, template_dir, hash_algo,
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initial_branch, init_shared_repository, flags);
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}
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