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Add Lua scripting feature

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Add support for running Lua scripts that can manipulate the tty control
lines. Script is activated automatically on connect or manually via in
session key command.

The Lua scripting feature opens up for many posibilities in the future
such as adding expect like functionality to easily and programatically
interact with the connected device.
This commit is contained in:
Martin Lund 2024-04-01 15:37:25 +02:00
parent 6fee8514f4
commit 0becfa3274
12 changed files with 590 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

46
src/options.c
View file

@ -39,6 +39,7 @@
#include "timestamp.h"
#include "alert.h"
#include "log.h"
#include "script.h"
enum opt_t
{
@ -54,6 +55,9 @@ enum opt_t
OPT_ALERT,
OPT_COMPLETE_SUB_CONFIGS,
OPT_MUTE,
OPT_SCRIPT,
OPT_SCRIPT_FILE,
OPT_SCRIPT_RUN,
};
/* Default options */
@ -96,6 +100,9 @@ struct option_t option =
.rs485_delay_rts_after_send = -1,
.alert = ALERT_NONE,
.complete_sub_configs = false,
.script = NULL,
.script_filename = NULL,
.script_run = SCRIPT_RUN_ALWAYS,
};
void print_help(char *argv[])
@ -134,6 +141,9 @@ void print_help(char *argv[])
printf(" --rs-485-config <config> Set RS-485 configuration\n");
printf(" --alert bell|blink|none Alert on connect/disconnect (default: none)\n");
printf(" --mute Mute tio\n");
printf(" --script <string> Run script from string\n");
printf(" --script-file <filename> Run script from file\n");
printf(" --script-run once|always|never Run script on connect (default: always)\n");
printf(" -v, --version Display version\n");
printf(" -h, --help Display help\n");
printf("\n");
@ -202,6 +212,27 @@ void line_pulse_duration_option_parse(const char *arg)
free(buffer);
}
enum script_run_t script_run_option_parse(const char *arg)
{
if (strcmp("once", arg) == 0)
{
return SCRIPT_RUN_ONCE;
}
else if (strcmp("always", arg) == 0)
{
return SCRIPT_RUN_ALWAYS;
}
else if (strcmp("never", arg) == 0)
{
return SCRIPT_RUN_NEVER;
}
else
{
tio_error_printf("Invalid script run option");
exit(EXIT_FAILURE);
}
}
void options_print()
{
tio_printf(" Device: %s", option.tty_device);
@ -276,6 +307,9 @@ void options_parse(int argc, char *argv[])
{"rs-485-config", required_argument, 0, OPT_RS485_CONFIG },
{"alert", required_argument, 0, OPT_ALERT },
{"mute", no_argument, 0, OPT_MUTE },
{"script", required_argument, 0, OPT_SCRIPT },
{"script-file", required_argument, 0, OPT_SCRIPT_FILE },
{"script-run", required_argument, 0, OPT_SCRIPT_RUN },
{"version", no_argument, 0, 'v' },
{"help", no_argument, 0, 'h' },
{"complete-sub-configs", no_argument, 0, OPT_COMPLETE_SUB_CONFIGS},
@ -439,6 +473,18 @@ void options_parse(int argc, char *argv[])
option.mute = true;
break;
case OPT_SCRIPT:
option.script = optarg;
break;
case OPT_SCRIPT_FILE:
option.script_filename = optarg;
break;
case OPT_SCRIPT_RUN:
option.script_run = script_run_option_parse(optarg);
break;
case 'v':
printf("tio v%s\n", VERSION);
exit(EXIT_SUCCESS);