Merge dev into human codebase evaluation

src/client/client_cli.c

@@ -334,6 +334,8 @@ int parse_args(Config* config, int argc, char* argv[], int* positional_args,
     } else if (strcmp(argv[i], "-T") == 0 && i + 1 < argc) {
       if (set_positive_int_option(&config->timeout, argv[++i], "-T") != 0)
         return -1;
+    } else if (strcmp(argv[i], "--checksum") == 0) {
+      config->checksum = true;
     } else if (strcmp(argv[i], "--compress-level") == 0 && i + 1 < argc) {
       if (set_positive_int_option(&config->compression_level, argv[++i], "--compress-level") != 0)
         return -1;
@@ -391,6 +393,12 @@ static bool validate_config(const Config* config) {
     fprintf(stderr, "Error: --delta cannot be combined with -f (sendfile)\n");
     return false;
   }
+  if (config->append || config->append_verify) {
+    fprintf(
+        stderr,
+        "Error: --append and --append-verify are not supported yet; refusing to ignore option\n");
+    return false;
+  }
   if (config->use_tls) {
     if (!config->tls_cert || !config->tls_key) {
       fprintf(stderr, "Error: --tls requires --cert and --key\n");