git-am: force egrep to use correct characters set
[gitweb.git] / builtin-init-db.c
index d1fa12a59efb34256b2cc80b03c637cc844d84ff..dd84caecbc2a07bca90c8524157d50a8fd5ae316 100644 (file)
@@ -6,6 +6,7 @@
 #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"
@@ -61,20 +62,20 @@ static void copy_templates_1(char *path, int baselen,
                memcpy(template + template_baselen, de->d_name, namelen+1);
                if (lstat(path, &st_git)) {
                        if (errno != ENOENT)
-                               die("cannot stat %s", path);
+                               die_errno("cannot stat '%s'", path);
                }
                else
                        exists = 1;
 
                if (lstat(template, &st_template))
-                       die("cannot stat template %s", 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("cannot opendir %s", template);
+                               die_errno("cannot opendir '%s'", template);
                        path[baselen_sub++] =
                                template[template_baselen_sub++] = '/';
                        path[baselen_sub] =
@@ -91,16 +92,17 @@ static void copy_templates_1(char *path, int baselen,
                        int len;
                        len = readlink(template, lnk, sizeof(lnk));
                        if (len < 0)
-                               die("cannot readlink %s", template);
+                               die_errno("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);
+                               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("cannot copy %s to %s", template, path);
+                               die_errno("cannot copy '%s' to '%s'", template,
+                                         path);
                }
                else
                        error("ignoring template %s", template);
@@ -350,7 +352,7 @@ static int guess_repository_type(const char *git_dir)
        if (!strcmp(".", git_dir))
                return 1;
        if (!getcwd(cwd, sizeof(cwd)))
-               die("cannot tell cwd");
+               die_errno("cannot tell cwd");
        if (!strcmp(git_dir, cwd))
                return 1;
        /*
@@ -369,8 +371,16 @@ static int guess_repository_type(const char *git_dir)
        return 1;
 }
 
-static const char init_db_usage[] =
-"git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]]";
+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.
@@ -383,25 +393,60 @@ 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;
-       int i;
-
-       for (i = 1; i < argc; i++, argv++) {
-               const char *arg = argv[1];
-               if (!prefixcmp(arg, "--template="))
-                       template_dir = arg+11;
-               else if (!strcmp(arg, "--bare")) {
-                       static char git_dir[PATH_MAX+1];
-                       is_bare_repository_cfg = 1;
-                       setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir,
-                                               sizeof(git_dir)), 0);
-               } else if (!strcmp(arg, "--shared"))
-                       init_shared_repository = PERM_GROUP;
-               else if (!prefixcmp(arg, "--shared="))
-                       init_shared_repository = git_config_perm("arg", arg+9);
-               else if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet"))
-                       flags |= INIT_DB_QUIET;
-               else
-                       usage(init_db_usage);
+       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)
@@ -440,11 +485,11 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
                if (!git_work_tree_cfg) {
                        git_work_tree_cfg = xcalloc(PATH_MAX, 1);
                        if (!getcwd(git_work_tree_cfg, PATH_MAX))
-                               die ("Cannot access current working directory.");
+                               die_errno ("Cannot access current working directory");
                }
                if (access(get_git_work_tree(), X_OK))
-                       die ("Cannot access work tree '%s'",
-                            get_git_work_tree());
+                       die_errno ("Cannot access work tree '%s'",
+                                  get_git_work_tree());
        }
 
        set_git_dir(make_absolute_path(git_dir));