summaryrefslogtreecommitdiff
path: root/builtin-init-db.c
diff options
context:
space:
mode:
authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2010-02-22 08:42:18 -0800
committerLibravatar Junio C Hamano <gitster@pobox.com>2010-02-22 14:29:41 -0800
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin-init-db.c
parentMerge branch 'ml/maint-grep-doc' (diff)
downloadtgif-81b50f3ce40bfdd66e5d967bf82be001039a9a98.tar.xz
Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-init-db.c')
-rw-r--r--builtin-init-db.c498
1 files changed, 0 insertions, 498 deletions
diff --git a/builtin-init-db.c b/builtin-init-db.c
deleted file mode 100644
index dd84caecbc..0000000000
--- a/builtin-init-db.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-#include "cache.h"
-#include "builtin.h"
-#include "exec_cmd.h"
-#include "parse-options.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 int init_is_bare_repository = 0;
-static int init_shared_repository = -1;
-
-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", dir);
-}
-
-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_errno("cannot stat '%s'", path);
- }
- else
- exists = 1;
-
- if (lstat(template, &st_template))
- die_errno("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_errno("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_errno("cannot readlink '%s'", template);
- if (sizeof(lnk) <= len)
- die("insanely long symlink %s", template);
- lnk[len] = 0;
- if (symlink(lnk, path))
- die_errno("cannot symlink '%s' '%s'", lnk, path);
- }
- else if (S_ISREG(st_template.st_mode)) {
- if (copy_file(path, template, st_template.st_mode))
- die_errno("cannot copy '%s' to '%s'", template,
- path);
- }
- else
- error("ignoring template %s", template);
- }
-}
-
-static void copy_templates(const char *template_dir)
-{
- char path[PATH_MAX];
- char template_path[PATH_MAX];
- int template_len;
- DIR *dir;
- const char *git_dir = get_git_dir();
- int len = strlen(git_dir);
-
- if (!template_dir)
- template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
- if (!template_dir)
- template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
- if (!template_dir[0])
- return;
- template_len = strlen(template_dir);
- if (PATH_MAX <= (template_len+strlen("/config")))
- die("insanely long template path %s", template_dir);
- strcpy(template_path, template_dir);
- if (template_path[template_len-1] != '/') {
- template_path[template_len++] = '/';
- template_path[template_len] = 0;
- }
- dir = opendir(template_path);
- if (!dir) {
- warning("templates not found %s", 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, NULL);
- template_path[template_len] = 0;
-
- if (repository_format_version &&
- repository_format_version != GIT_REPO_VERSION) {
- warning("not copying templates of "
- "a wrong format version %d from '%s'",
- repository_format_version,
- template_dir);
- closedir(dir);
- return;
- }
-
- memcpy(path, git_dir, len);
- if (len && path[len - 1] != '/')
- path[len++] = '/';
- path[len] = 0;
- copy_templates_1(path, len,
- template_path, template_len,
- dir);
- closedir(dir);
-}
-
-static int create_default_files(const char *template_path)
-{
- const char *git_dir = get_git_dir();
- unsigned len = strlen(git_dir);
- static char path[PATH_MAX];
- struct stat st1;
- char repo_version_string[10];
- char junk[2];
- 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}
- */
- safe_create_dir(git_path("refs"), 1);
- safe_create_dir(git_path("refs/heads"), 1);
- safe_create_dir(git_path("refs/tags"), 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.
- */
- copy_templates(template_path);
-
- git_config(git_default_config, NULL);
- is_bare_repository_cfg = init_is_bare_repository;
-
- /* reading existing config may have overwrote it */
- if (init_shared_repository != -1)
- shared_repository = init_shared_repository;
-
- /*
- * We would have created the above under user's umask -- under
- * shared-repository settings, we would need to fix them up.
- */
- if (shared_repository) {
- adjust_shared_perm(get_git_dir());
- adjust_shared_perm(git_path("refs"));
- adjust_shared_perm(git_path("refs/heads"));
- adjust_shared_perm(git_path("refs/tags"));
- }
-
- /*
- * Create the default symlink from ".git/HEAD" to the "master"
- * branch, if it does not exist yet.
- */
- strcpy(path + len, "HEAD");
- reinit = (!access(path, R_OK)
- || readlink(path, junk, sizeof(junk)-1) != -1);
- 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_config_set("core.bare", "true");
- else {
- const char *work_tree = get_git_work_tree();
- 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 (prefixcmp(git_dir, work_tree) ||
- strcmp(git_dir + strlen(work_tree), "/.git")) {
- git_config_set("core.worktree", work_tree);
- }
- }
-
- if (!reinit) {
- /* Check if symlink is supported in the work tree */
- path[len] = 0;
- strcpy(path + len, "tXXXXXX");
- if (!close(xmkstemp(path)) &&
- !unlink(path) &&
- !symlink("testing", path) &&
- !lstat(path, &st1) &&
- S_ISLNK(st1.st_mode))
- unlink(path); /* good */
- else
- git_config_set("core.symlinks", "false");
-
- /* Check if the filesystem is case-insensitive */
- path[len] = 0;
- strcpy(path + len, "CoNfIg");
- if (!access(path, F_OK))
- git_config_set("core.ignorecase", "true");
- }
-
- return reinit;
-}
-
-int init_db(const char *template_dir, unsigned int flags)
-{
- const char *sha1_dir;
- char *path;
- int len, reinit;
-
- safe_create_dir(get_git_dir(), 0);
-
- init_is_bare_repository = is_bare_repository();
-
- /* 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(template_dir);
-
- 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. Note, we use octal numbers for new share modes,
- * and compatibility values for PERM_GROUP and
- * PERM_EVERYBODY.
- */
- if (shared_repository < 0)
- /* force to the mode value */
- sprintf(buf, "0%o", -shared_repository);
- else if (shared_repository == PERM_GROUP)
- sprintf(buf, "%d", OLD_PERM_GROUP);
- else if (shared_repository == PERM_EVERYBODY)
- sprintf(buf, "%d", OLD_PERM_EVERYBODY);
- else
- die("oops");
- git_config_set("core.sharedrepository", buf);
- git_config_set("receive.denyNonFastforwards", "true");
- }
-
- if (!(flags & INIT_DB_QUIET))
- printf("%s%s Git repository in %s/\n",
- reinit ? "Reinitialized existing" : "Initialized empty",
- shared_repository ? " shared" : "",
- get_git_dir());
-
- return 0;
-}
-
-static int guess_repository_type(const char *git_dir)
-{
- char cwd[PATH_MAX];
- const char *slash;
-
- /*
- * "GIT_DIR=. git init" is always bare.
- * "GIT_DIR=`pwd` git init" too.
- */
- if (!strcmp(".", git_dir))
- return 1;
- if (!getcwd(cwd, sizeof(cwd)))
- die_errno("cannot tell cwd");
- if (!strcmp(git_dir, cwd))
- return 1;
- /*
- * "GIT_DIR=.git or GIT_DIR=something/.git is usually not.
- */
- if (!strcmp(git_dir, ".git"))
- return 0;
- slash = strrchr(git_dir, '/');
- if (slash && !strcmp(slash, "/.git"))
- return 0;
-
- /*
- * Otherwise it is often bare. At this point
- * we are just guessing.
- */
- return 1;
-}
-
-static int shared_callback(const struct option *opt, const char *arg, int unset)
-{
- *((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP;
- return 0;
-}
-
-static const char *const init_db_usage[] = {
- "git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [directory]",
- NULL
-};
-
-/*
- * 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 *template_dir = NULL;
- unsigned int flags = 0;
- const struct option init_db_options[] = {
- OPT_STRING(0, "template", &template_dir, "template-directory",
- "provide the directory from which templates will be used"),
- OPT_SET_INT(0, "bare", &is_bare_repository_cfg,
- "create a bare repository", 1),
- { OPTION_CALLBACK, 0, "shared", &init_shared_repository,
- "permissions",
- "specify that the git repository is to be shared amongst several users",
- PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0},
- OPT_BIT('q', "quiet", &flags, "be quiet", INIT_DB_QUIET),
- OPT_END()
- };
-
- argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0);
-
- if (argc == 1) {
- int mkdir_tried = 0;
- retry:
- if (chdir(argv[0]) < 0) {
- if (!mkdir_tried) {
- int saved;
- /*
- * At this point we haven't read any configuration,
- * and we know shared_repository should always be 0;
- * but just in case we play safe.
- */
- saved = shared_repository;
- shared_repository = 0;
- switch (safe_create_leading_directories_const(argv[0])) {
- case -3:
- errno = EEXIST;
- /* fallthru */
- case -1:
- die_errno("cannot mkdir %s", argv[0]);
- break;
- default:
- break;
- }
- shared_repository = saved;
- if (mkdir(argv[0], 0777) < 0)
- die_errno("cannot mkdir %s", argv[0]);
- mkdir_tried = 1;
- goto retry;
- }
- die_errno("cannot chdir to %s", argv[0]);
- }
- } else if (0 < argc) {
- usage(init_db_usage[0]);
- }
- if (is_bare_repository_cfg == 1) {
- static char git_dir[PATH_MAX+1];
-
- setenv(GIT_DIR_ENVIRONMENT,
- getcwd(git_dir, sizeof(git_dir)), 0);
- }
-
- if (init_shared_repository != -1)
- shared_repository = init_shared_repository;
-
- /*
- * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
- * without --bare. Catch the error early.
- */
- git_dir = getenv(GIT_DIR_ENVIRONMENT);
- if ((!git_dir || is_bare_repository_cfg == 1)
- && getenv(GIT_WORK_TREE_ENVIRONMENT))
- die("%s (or --work-tree=<directory>) not allowed without "
- "specifying %s (or --git-dir=<directory>)",
- GIT_WORK_TREE_ENVIRONMENT,
- GIT_DIR_ENVIRONMENT);
-
- /*
- * Set up the default .git directory contents
- */
- if (!git_dir)
- git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
-
- if (is_bare_repository_cfg < 0)
- is_bare_repository_cfg = guess_repository_type(git_dir);
-
- if (!is_bare_repository_cfg) {
- if (git_dir) {
- const char *git_dir_parent = strrchr(git_dir, '/');
- if (git_dir_parent) {
- char *rel = xstrndup(git_dir, git_dir_parent - git_dir);
- git_work_tree_cfg = xstrdup(make_absolute_path(rel));
- free(rel);
- }
- }
- if (!git_work_tree_cfg) {
- git_work_tree_cfg = xcalloc(PATH_MAX, 1);
- if (!getcwd(git_work_tree_cfg, PATH_MAX))
- die_errno ("Cannot access current working directory");
- }
- if (access(get_git_work_tree(), X_OK))
- die_errno ("Cannot access work tree '%s'",
- get_git_work_tree());
- }
-
- set_git_dir(make_absolute_path(git_dir));
-
- return init_db(template_dir, flags);
-}