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shell: Added noprompt command

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Added noprompt command to shell. It will disable printing
the prompt.
For the native port, when feeding commands from a file or
pipe the prompt reprinting after each command (without echoing)
just confuses the user.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
This commit is contained in:
Alberto Escolar Piedras 2018-01-30 10:31:36 +01:00 • committed by Anas Nashif
commit bfabdf1de5
2 changed files with 24 additions and 4 deletions
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8
doc/subsystems/shell.rst
View file

@ -53,6 +53,14 @@ Select module commands
``select``
Clears selected module. Restores prompt as well.
Other commands
==============
``noprompt``
This command will disable the shell prompt. The shell will still be fully
functional, but the prompt will not be printed each time the shell expects a
new command.
Shell configuration
*******************
There are two levels of configuration: Infrastructure level and Module level.

20
subsys/shell/shell.c
View file

@ -51,6 +51,7 @@ extern struct shell_cmd __shell_cmd_end[];
static const char *prompt;
static char default_module_prompt[PROMPT_MAX_LEN];
static struct shell_module *default_module;
static bool no_promt;
#define STACKSIZE CONFIG_CONSOLE_SHELL_STACKSIZE
static K_THREAD_STACK_DEFINE(stack, STACKSIZE);
@ -338,6 +339,16 @@ static int cmd_exit(int argc, char *argv[])
return 0;
}
static int cmd_noprompt(int argc, char *argv[])
{
no_promt = true;
return 0;
}
#define SHELL_CMD_NOPROMPT "noprompt"
SHELL_REGISTER_COMMAND(SHELL_CMD_NOPROMPT, cmd_noprompt,
"Disable shell prompt");
static const struct shell_cmd *get_internal(const char *command)
{
static const struct shell_cmd internal_commands[] = {
@ -350,7 +361,6 @@ static const struct shell_cmd *get_internal(const char *command)
return get_cmd(internal_commands, command);
}
int shell_exec(char *line)
{
char *argv[ARGC_MAX + 1], **argv_start = argv;
@ -424,11 +434,13 @@ static void shell(void *p1, void *p2, void *p3)
while (1) {
struct console_input *cmd;
printk("%s", get_prompt());
if (!no_promt) {
printk("%s", get_prompt());
#if defined(CONFIG_NATIVE_POSIX_CONSOLE)
/* The native printk driver is line buffered */
posix_flush_stdout();
/* The native printk driver is line buffered */
posix_flush_stdout();
#endif
}
cmd = k_fifo_get(&cmds_queue, K_FOREVER);