From c83900593daace2ef85174163edf2748179e28f2 Mon Sep 17 00:00:00 2001
From: Dominique Martinet <asmadeus@codewreck.org>
Date: Fri, 29 Dec 2017 15:31:04 +0100
Subject: config: add 'set' command

---
 sway/commands/set.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 sway/commands/set.c

(limited to 'sway/commands')

diff --git a/sway/commands/set.c b/sway/commands/set.c
new file mode 100644
index 00000000..dcd928ba
--- /dev/null
+++ b/sway/commands/set.c
@@ -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);
+}
-- 
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