config: add 'set' command

This commit is contained in:
Dominique Martinet 2017-12-29 15:31:04 +01:00
parent c5452a3220
commit c83900593d
5 changed files with 81 additions and 2 deletions

View file

@ -375,6 +375,7 @@ bool read_config(FILE *file, struct sway_config *config);
* Free config struct
*/
void free_config(struct sway_config *config);
void free_sway_variable(struct sway_variable *var);
/**
* Does variable replacement for a string based on the config's currently loaded variables.
*/

View file

@ -138,6 +138,7 @@ static struct cmd_handler handlers[] = {
{ "input", cmd_input },
{ "output", cmd_output },
{ "seat", cmd_seat },
{ "set", cmd_set },
};
static int handler_compare(const void *_a, const void *_b) {
@ -290,7 +291,7 @@ struct cmd_results *config_command(char *exec, enum cmd_status block) {
int i;
// Var replacement, for all but first argument of set
// TODO commands
for (i = /*handler->handle == cmd_set ? 2 :*/ 1; i < argc; ++i) {
for (i = handler->handle == cmd_set ? 2 : 1; i < argc; ++i) {
argv[i] = do_var_replacement(argv[i]);
unescape_string(argv[i]);
}

71
sway/commands/set.c Normal file
View file

@ -0,0 +1,71 @@
#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "list.h"
#include "log.h"
#include "stringop.h"
// sort in order of longest->shortest
static int compare_set_qsort(const void *_l, const void *_r) {
struct sway_variable const *l = *(void **)_l;
struct sway_variable const *r = *(void **)_r;
return strlen(r->name) - strlen(l->name);
}
void free_sway_variable(struct sway_variable *var) {
if (!var) {
return;
}
free(var->name);
free(var->value);
free(var);
}
struct cmd_results *cmd_set(int argc, char **argv) {
char *tmp;
struct cmd_results *error = NULL;
if (!config->reading) return cmd_results_new(CMD_FAILURE, "set", "Can only be used in config file.");
if ((error = checkarg(argc, "set", EXPECTED_AT_LEAST, 2))) {
return error;
}
if (argv[0][0] != '$') {
sway_log(L_INFO, "Warning: variable '%s' doesn't start with $", argv[0]);
size_t size = snprintf(NULL, 0, "$%s", argv[0]);
tmp = malloc(size + 1);
if (!tmp) {
return cmd_results_new(CMD_FAILURE, "set", "Not possible to create variable $'%s'", argv[0]);
}
snprintf(tmp, size+1, "$%s", argv[0]);
argv[0] = tmp;
}
struct sway_variable *var = NULL;
// Find old variable if it exists
int i;
for (i = 0; i < config->symbols->length; ++i) {
var = config->symbols->items[i];
if (strcmp(var->name, argv[0]) == 0) {
break;
}
var = NULL;
}
if (var) {
free(var->value);
} else {
var = malloc(sizeof(struct sway_variable));
if (!var) {
return cmd_results_new(CMD_FAILURE, "set", "Unable to allocate variable");
}
var->name = strdup(argv[0]);
list_add(config->symbols, var);
list_qsort(config->symbols, compare_set_qsort);
}
var->value = join_args(argv + 1, argc - 1);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}

View file

@ -61,7 +61,12 @@ void free_config(struct sway_config *config) {
}
// TODO: handle all currently unhandled lists as we add implementations
list_free(config->symbols);
if (config->symbols) {
for (i = 0; i < config->symbols->length; i++) {
free_sway_variable(config->symbols->items[i]);
}
list_free(config->symbols);
}
if (config->modes) {
for (i = 0; i < config->modes->length; i++) {
free_mode(config->modes->items[i]);

View file

@ -15,6 +15,7 @@ sway_sources = files(
'commands/seat.c',
'commands/seat/attach.c',
'commands/seat/fallback.c',
'commands/set.c',
'commands/input/accel_profile.c',
'commands/input/click_method.c',
'commands/input/drag_lock.c',