From bcef77a7fb3b73d2a2fbcea51012014b62755bb5 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Fri, 31 May 2019 18:42:01 +0200
Subject: Switch to a JSON-based config format

We can get rid of a lot of code by ditching out INI format parser. We also
remove the support for "subtype" and "generator" templates for now; rather
than implementing this in NeCo itself, templates could be implemented as
a Lua DSL later.
---
 src/config-load.c | 108 ++++--------------------------------------------------
 1 file changed, 7 insertions(+), 101 deletions(-)

(limited to 'src/config-load.c')

diff --git a/src/config-load.c b/src/config-load.c
index 63a87b4..19b9d3a 100644
--- a/src/config-load.c
+++ b/src/config-load.c
@@ -14,110 +14,16 @@
 #include <string.h>
 #include <unistd.h>
 
-typedef struct _load_ctx {
-	struct avl_tree subtypes;
-	struct avl_tree devices;
-} load_ctx_t;
-
-static const char * extname(const char *filename) {
-	const char *dot = strrchr(filename, '.');
-	return dot ? (dot+1) : NULL;
-}
-
-static bool isfile(int fd) {
-	struct stat buf;
-	if (fstat(fd, &buf) < 0)
-		return false;
-
-	return (buf.st_mode & S_IFMT) == S_IFREG;
-}
-
-static bool read_config_file(load_ctx_t *ctx, int dirfd, const char *filename) {
-	const char *ext = extname(filename);
-	if (!ext)
-		return true;
-
-	struct avl_tree *target_tree;
-	if (strcmp(ext, "sub") == 0 || strcmp(ext, "gen") == 0)
-		target_tree = &ctx->subtypes;
-	else if (get_device_type(ext))
-		target_tree = &ctx->devices;
-	else
-		return true;
-	
-	int fd = openat(dirfd, filename, O_RDONLY);
-	if (fd < 0)
-		return false;
-	
-	if (!isfile(fd)) {
-		close(fd);
-		return true;
-	}
-
-	FILE *f = fdopen(fd, "r");
-	if (!f) {
-		close(fd);
-		return false;
-	}
-	
-	ini_file_t *data = read_ini_file(f);
-	fclose(f);
-
-	if (!data)
-		return false;
-	
-	config_object_t *obj = calloc(1, sizeof(*obj));
-	if (!obj) {
-		free_ini_file(data);
-		return false;
-	}
-	obj->data = data;
-
-	char *name = strndup(filename, (ext - filename) - 1);
-	if (!name) {
-		config_object_free(obj);
-		return false;
-	}
-	NODE_NAME(obj) = name;
-
-	obj->type = strdup(ext);
-	if (!obj->type) {
-		config_object_free(obj);
+bool read_config(const char *path) {
+	struct json_object *config = json_object_from_file(path);
+	if (!config)
 		return false;
-	}
 
-	avl_insert(target_tree, &obj->node);
-
-	return true;
-}
+	struct avl_tree *devices = config_process(config);
+	json_object_put(config);
 
-static bool read_config_dir(load_ctx_t *ctx, const char *path) {
-	DIR *dir = opendir(path);
-	if (!dir)
+	if (!devices)
 		return false;
-	
-	int fd = dirfd(dir);
-
-	struct dirent *ent;
-	while ((ent = readdir(dir)) != NULL)
-		read_config_file(ctx, fd, ent->d_name);
-
-	closedir(dir);
-
-	return true;
-}
-
-bool read_config(const char *path) {
-	load_ctx_t ctx;
-	avl_init(&ctx.subtypes, avl_strcmp, true, NULL);
-	avl_init(&ctx.devices, avl_strcmp, true, NULL);
-	
-	bool ret = read_config_dir(&ctx, path);
-
-	struct avl_tree *subtypes = config_process_subtypes(&ctx.subtypes);
-	struct avl_tree *devices = config_process_devices(&ctx.devices);
-
-	free(subtypes);
 
 	device_t *dev, *tmp;
 	avl_for_each_element(devices, dev, node)
@@ -131,5 +37,5 @@ bool read_config(const char *path) {
 
 	free(devices);
 
-	return ret;
+	return true;
 }
-- 
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