Improve incomplete installations support

src/config/config.c

@@ -1600,6 +1600,13 @@ bool readFTLconf(struct config *conf, const bool rewrite)
 
 	log_info("No config file nor backup available, using defaults");
 
+	// If we reach this point, we could not read the TOML config file When
+	// this functions is invoked to run without rewriting, we are likely
+	// running interactively and do not want to migrate settings (yet):
+	// using defaults is fine in this case
+	if(!rewrite)
+		return false;
+
 	// If no previous config file could be read, we are likely either running
 	// for the first time or we are upgrading from a version prior to v6.0
 	// In this case, we try to read the legacy config files
@@ -1661,8 +1668,8 @@ bool readFTLconf(struct config *conf, const bool rewrite)
 		conf->webserver.port.v.s = ports;
 		conf->webserver.port.t = CONF_STRING_ALLOCATED;
 
-		log_info("Initialised webserver ports at %d (HTTP) and %d (HTTPS), IPv6 support is %s",
-			http_port, https_port, have_ipv6 ? "enabled" : "disabled");
+		log_info("Config initialized with webserver ports %d (HTTP) and %d (HTTPS), IPv6 support is %s",
+		         http_port, https_port, have_ipv6 ? "enabled" : "disabled");
 	}
 
 	// Initialize the TOML config file

src/config/toml_helper.c

@@ -61,17 +61,17 @@ FILE * __attribute((malloc)) __attribute((nonnull(1))) openFTLtoml(const char *m
 	// Return early if opening failed
 	if(!fp)
 	{
-		log_info("Config %sfile %s not available: %s",
-		         version > 0 ? "backup " : "", filename, strerror(errno));
+		log_info("Config %sfile %s not available (%s): %s",
+		         version > 0 ? "backup " : "", filename, mode, strerror(errno));
 		return NULL;
 	}
 
 	// Lock file, may block if the file is currently opened
 	if(flock(fileno(fp), LOCK_EX) != 0)
 	{
 		const int _e = errno;
-		log_err("Cannot open config file %s in exclusive mode: %s",
-		        filename, strerror(errno));
+		log_err("Cannot open config file %s in exclusive mode (%s): %s",
+		        filename, mode, strerror(errno));
 		fclose(fp);
 		errno = _e;
 		return NULL;