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shell: move help command to shell.c

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The help command is needed to list all available commands
when it is not possible to use the tab key.
Previously when build-in commands were deactivated command
help was not compiled as well.

Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
This commit is contained in:
Jakub Rzeszutko 2020-11-17 12:23:54 +01:00 • committed by Maureen Helm
commit 6e18a63f9b
2 changed files with 48 additions and 36 deletions
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48
subsys/shell/shell.c
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@ -1555,3 +1555,51 @@ int shell_execute_cmd(const struct shell *shell, const char *cmd)
return ret_val;
}
static int cmd_help(const struct shell *shell, size_t argc, char **argv)
{
ARG_UNUSED(argc);
ARG_UNUSED(argv);
#if defined(CONFIG_SHELL_TAB)
shell_print(shell, "Please press the <Tab> button to see all available "
"commands.");
#endif
#if defined(CONFIG_SHELL_TAB_AUTOCOMPLETION)
shell_print(shell,
"You can also use the <Tab> button to prompt or auto-complete"
" all commands or its subcommands.");
#endif
#if defined(CONFIG_SHELL_HELP)
shell_print(shell,
"You can try to call commands with <-h> or <--help> parameter"
" for more information.");
#endif
#if defined(CONFIG_SHELL_METAKEYS)
shell_print(shell,
"\nShell supports following meta-keys:\n"
" Ctrl + (a key from: abcdefklnpuw)\n"
" Alt + (a key from: bf)\n"
"Please refer to shell documentation for more details.");
#endif
if (IS_ENABLED(CONFIG_SHELL_HELP)) {
/* For NULL argument function will print all root commands */
shell_help_subcmd_print(shell, NULL, "\nAvailable commands:\n");
} else {
const struct shell_static_entry *entry;
size_t idx = 0;
shell_print(shell, "\nAvailable commands:");
while ((entry = shell_cmd_get(NULL, idx++, NULL)) != NULL) {
shell_print(shell, " %s", entry->syntax);
}
}
return 0;
}
SHELL_CMD_ARG_REGISTER(help, NULL, "Prints the help message.", cmd_help, 1, 0);