Page Hotreloading

routes.c

@@ -1,5 +1,7 @@
 #include "gebs/gebs.h"
 #include "mongoose/mongoose.h"
+#include "cJSON/cJSON.h"
+#include "md5-c/md5.h"
 
 #include "routes.h"
 #include "baked.h"
@@ -29,6 +31,31 @@ bool gpp_run(char *path, NString_List *env, String_Builder *out)
     return cmd_run_collect(&cmd, out) == 0;
 }
 
+void route_build_id(struct mg_connection *conn, struct mg_http_message *msg)
+{
+    cJSON *root = cJSON_CreateObject();
+    defer { cJSON_Delete(root); }
+
+    char *time = __TIME__;
+    uchar md5_buf[16];
+    md5String(time, md5_buf);
+    String_Builder sb = {0};
+    defer { sb_free(&sb); }
+    for (size_t i = 0; i < 16; i++) {
+        char tmp[3];
+        snprintf(tmp, sizeof(tmp), "%02x", md5_buf[i]);
+        sb_append_nstr(&sb, tmp);
+    }
+    sb_finish(&sb);
+
+    cJSON_AddItemToObject(root, "build_id", cJSON_CreateString(sb.items));
+
+    char *root_text = cJSON_PrintUnformatted(root);
+    defer { free(root_text); }
+
+    mg_http_reply(conn, 200, "Content-Type: application/json\r\n", root_text);
+}
+
 void route_page_not_found(struct mg_connection *conn, struct mg_http_message *msg)
 {
     NString_List env = {0};
@@ -44,6 +71,12 @@ void route_page_not_found(struct mg_connection *conn, struct mg_http_message *ms
         mg_http_reply(conn, 500, "Content-Type: text/plain\r\n", INTERNAL_SERVER_ERROR_MSG);
         return;
     }
+    
+    #if DEBUG
+        list_append(&env, "-DHOTRELOAD=1");
+    #else
+        list_append(&env, "-DHOTRELOAD=0");
+    #endif
 
     bool ok = gpp_run(path, &env, &out);
     sb_finish(&out);
@@ -93,6 +126,25 @@ void route_favicon(struct mg_connection *conn, struct mg_http_message *msg)
     mg_http_reply(conn, 200, "Content-Type: image/x-icon\r\n", "%s", sb.items);
 }
 
+void route_hotreload_js(struct mg_connection *conn, struct mg_http_message *msg)
+{
+    char path[PATH_MAX] = {0};
+    if (!get_baked_resource_path("hotreload.js", path, sizeof(path))) {
+        mg_http_reply(conn, 500, "Content-Type: text/plain\r\n", INTERNAL_SERVER_ERROR_MSG);
+        return;
+    }
+
+    String_Builder sb = {0};
+    defer { sb_free(&sb); }
+    if (!sb_read_file(&sb, path)) {
+        mg_http_reply(conn, 500, "Content-Type: text/plain\r\n", INTERNAL_SERVER_ERROR_MSG);
+        return;
+    }
+    sb_finish(&sb);
+
+    mg_http_reply(conn, 200, "Content-Type: text/javascript\r\n", "%s", sb.items);
+}
+
 void route_home(struct mg_connection *conn, struct mg_http_message *msg)
 {
     NString_List env = {0};
@@ -106,7 +158,13 @@ void route_home(struct mg_connection *conn, struct mg_http_message *msg)
         mg_http_reply(conn, 500, "Content-Type: text/plain\r\n", INTERNAL_SERVER_ERROR_MSG);
         return;
     }
-    
+
+    #if DEBUG
+        list_append(&env, "-DHOTRELOAD=1");
+    #else
+        list_append(&env, "-DHOTRELOAD=0");
+    #endif
+
     bool ok = gpp_run(path, &env, &out);
     sb_finish(&out);