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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-04 10:06:22 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-04 10:06:22 +0200 |
commit | a5c3b05b4d087a22a72b5d979a7539e3c5be2917 (patch) | |
tree | ea30315e0ffb84770631b9b70b7dc0da7dd3c4f0 /common | |
parent | 3753efa4271d674d9b3cc77a0e405b38711ac505 (diff) | |
parent | 294dc7160e55ffb6b940045fb00f01697dacd660 (diff) | |
download | barebox-a5c3b05b4d087a22a72b5d979a7539e3c5be2917.tar.gz barebox-a5c3b05b4d087a22a72b5d979a7539e3c5be2917.tar.xz |
Merge branch 'for-next/menutree'
Diffstat (limited to 'common')
-rw-r--r-- | common/Kconfig | 5 | ||||
-rw-r--r-- | common/Makefile | 1 | ||||
-rw-r--r-- | common/hush.c | 33 | ||||
-rw-r--r-- | common/menutree.c | 181 |
4 files changed, 219 insertions, 1 deletions
diff --git a/common/Kconfig b/common/Kconfig index 84c52fc398..0031cc8770 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -62,6 +62,9 @@ config STDDEV config BAREBOX_UPDATE bool +config MENUTREE + bool + menu "General Settings" config LOCALVERSION @@ -602,7 +605,7 @@ config DEFAULT_ENVIRONMENT_GENERIC_NEW config DEFAULT_ENVIRONMENT_GENERIC_NEW_MENU bool depends on DEFAULT_ENVIRONMENT_GENERIC_NEW - depends on CMD_MENU_MANAGEMENT + depends on CMD_MENUTREE default y config DEFAULT_ENVIRONMENT_GENERIC_NEW_DFU diff --git a/common/Makefile b/common/Makefile index 667c7b36ba..204241c919 100644 --- a/common/Makefile +++ b/common/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_RESET_SOURCE) += reset_source.o obj-$(CONFIG_SHELL_HUSH) += hush.o obj-$(CONFIG_SHELL_SIMPLE) += parser.o obj-$(CONFIG_UIMAGE) += image.o uimage.o +obj-$(CONFIG_MENUTREE) += menutree.o quiet_cmd_pwd_h = PWDH $@ ifdef CONFIG_PASSWORD diff --git a/common/hush.c b/common/hush.c index bd534c12f5..1447fdb7f1 100644 --- a/common/hush.c +++ b/common/hush.c @@ -1637,6 +1637,39 @@ static void update_ifs_map(void) mapset(ifs, 2); /* also flow through if quoted */ } +/* + * shell_expand - Expand shell variables in a string. + * @str: The input string containing shell variables like + * $var or ${var} + * Return: The expanded string. Must be freed with free(). + */ +char *shell_expand(char *str) +{ + struct p_context ctx = {}; + o_string o = {}; + char *res, *parsed; + + remove_quotes_in_str(str); + + o.quote = 1; + + initialize_context(&ctx); + + parse_string(&o, &ctx, str); + + parsed = xmemdup(o.data, o.length + 1); + parsed[o.length] = 0; + + res = insert_var_value(parsed); + if (res != parsed) + free(parsed); + + free_pipe_list(ctx.list_head, 0); + b_free(&o); + + return res; +} + /* most recursion does not come through here, the exeception is * from builtin_source() */ static int parse_stream_outer(struct p_context *ctx, struct in_str *inp, int flag) diff --git a/common/menutree.c b/common/menutree.c new file mode 100644 index 0000000000..814512d7b7 --- /dev/null +++ b/common/menutree.c @@ -0,0 +1,181 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <environment.h> +#include <libbb.h> +#include <common.h> +#include <glob.h> +#include <menu.h> +#include <fs.h> + +#include <linux/stat.h> + +struct menutree { + char *action; + struct menu_entry me; +}; + +static void menutree_action_subdir(struct menu *m, struct menu_entry *me) +{ + struct menutree *mt = container_of(me, struct menutree, me); + + menutree(mt->action, 0); +} + +static void menutree_action(struct menu *m, struct menu_entry *me) +{ + struct menutree *mt = container_of(me, struct menutree, me); + + run_command(mt->action); +} + +static void setenv_bool(const char *var, bool val) +{ + const char *str; + + if (val) + str = "1"; + else + str = "0"; + + setenv(var, str); +} + +static void menutree_box(struct menu *m, struct menu_entry *me) +{ + struct menutree *mt = container_of(me, struct menutree, me); + + setenv_bool(mt->action, me->box_state); +} + +static void menutree_entry_free(struct menu_entry *me) +{ + struct menutree *mt = container_of(me, struct menutree, me); + + free(mt->action); + free(mt->me.display); + free(mt); +} + +/* + * menutree - show a menu constructed from a directory structure + * @path: the path to the directory structure + * + * Each menu entry is described by a subdirectory. Each subdirectory + * can contain the following files which further describe the entry: + * + * title - A file containing the title of the entry as shown in the menu + * box - If present, the entry is a 'bool' entry. The file contains a variable + * name from which the current state of the bool is taken from and saved + * to. + * action - if present this file contains a shell script which is executed when + * when the entry is selected. + * + * If neither 'box' or 'action' are present this entry is considered a submenu + * containing more entries. + */ +int menutree(const char *path, int toplevel) +{ + int ret; + struct menu *menu; + struct stat s; + char *box; + struct menutree *mt; + glob_t g; + int i; + char *globpath, *display; + + menu = menu_alloc(); + + globpath = asprintf("%s/*", path); + ret = glob(globpath, 0, NULL, &g); + free(globpath); + if (ret == GLOB_NOMATCH) { + ret = -EINVAL; + goto out; + } + + display = read_file_line("%s/title", path); + if (!display) { + eprintf("no title found in %s/title\n", path); + ret = -EINVAL; + goto out; + } + + menu->display = shell_expand(display); + free(display); + + for (i = 0; i < g.gl_pathc; i++) { + ret = stat(g.gl_pathv[i], &s); + if (ret) + goto out; + + if (!S_ISDIR(s.st_mode)) + continue; + + mt = xzalloc(sizeof(*mt)); + + display = read_file_line("%s/title", g.gl_pathv[i]); + if (!display) { + eprintf("no title found in %s/title\n", g.gl_pathv[i]); + ret = -EINVAL; + goto out; + } + + mt->me.display = shell_expand(display); + free(display); + mt->me.free = menutree_entry_free; + + box = read_file_line("%s/box", g.gl_pathv[i]); + if (box) { + mt->me.type = MENU_ENTRY_BOX; + mt->me.action = menutree_box; + mt->action = box; + getenv_bool(box, &mt->me.box_state); + menu_add_entry(menu, &mt->me); + continue; + } + + mt->me.type = MENU_ENTRY_NORMAL; + + mt->action = asprintf("%s/action", g.gl_pathv[i]); + + ret = stat(mt->action, &s); + if (ret) { + mt->me.action = menutree_action_subdir; + free(mt->action); + mt->action = xstrdup(g.gl_pathv[i]); + } else { + mt->me.action = menutree_action; + } + + menu_add_entry(menu, &mt->me); + } + + if (!toplevel) { + mt = xzalloc(sizeof(*mt)); + mt->me.display = xstrdup("back"); + mt->me.type = MENU_ENTRY_NORMAL; + mt->me.non_re_ent = 1; + mt->me.free = menutree_entry_free; + menu_add_entry(menu, &mt->me); + } + + menu_show(menu); + + ret = 0; +out: + menu_free(menu); + + globfree(&g); + + return ret; +} |