feat: add ~/.snctl-cpp as the config directory

Author: BewareMyPower

.github/workflows/release.yaml

@@ -44,9 +44,13 @@ jobs:
           cmake -B build
           cmake --build build
           cp ./build/snctl-cpp .
+          mkdir 
 
       - name: upload
         uses: actions/upload-artifact@master
         with:
           name: snctl-cpp-macos-14-arm64
-          path: snctl-cpp
+          path: |
+            snctl-cpp
+            sncloud.ini
+            install.sh

README.md

@@ -16,7 +16,9 @@ Then you can find the executable in `build/snctl-cpp`.
 
 ## How to use
 
-You only need to fill the following fields in `sncloud.ini` (make sure this file exists in the current work directory):
+**Please make sure the `sncloud.ini` file is in the current working directory or `~/.snctl-cpp` directory if you don't specify the `--config` option.**
+
+You only need to fill the following fields in `sncloud.ini`:
 - `bootstrap.servers`: the URL of the Kafka service, e.g. `pc-xxx:9093` on StreamNative cloud.
 - (optional) `token`: the token generated by the API key. It's allowed to be empty for quickly testing against a local Kafka cluster without any authentication.
 

install.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# Copyright 2025 Yunze Xu
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e
+cd `dirname $0`
+
+if [[ ! -f snctl-cpp ]]; then
+    echo "No snctl-cpp found in current directory"
+    exit 1
+fi
+if [[ ! -f sncloud.ini ]]; then
+    echo "No sncloud.ini found in current directory"
+    exit 1
+fi
+
+mkdir -p ~/.snctl-cpp
+cp -f snctl-cpp ~/.snctl-cpp/snctl-cpp
+cp -f sncloud.ini ~/.snctl-cpp/sncloud.ini

main.cc

@@ -20,18 +20,27 @@
 #include "list_topics.h"
 #include <argparse/argparse.hpp>
 #include <array>
+#include <cstdlib>
 #include <cstring>
+#include <filesystem>
 #include <librdkafka/rdkafka.h>
 #include <memory>
 #include <stdexcept>
 #include <string>
 #include <type_traits>
+#include <vector>
 
 int main(int argc, char *argv[]) {
   const auto version = "0.1.0";
+
+  std::vector<std::string> default_config_paths{
+      std::filesystem::current_path() / "sncloud.ini",
+      std::filesystem::path(std::getenv("HOME")) / ".snctl-cpp" /
+          "sncloud.ini"};
+
   argparse::ArgumentParser program("snctl-cpp", version);
   program.add_argument("--config")
-      .default_value("sncloud.ini")
+      .default_value(default_config_paths)
       .help("Path to the config file");
   program.add_argument("--client-id").help("client id");
 
@@ -67,11 +76,22 @@ int main(int argc, char *argv[]) {
     throw std::runtime_error("Failed to " + action + ": " + errstr.data());
   };
 
-  const auto config_file = program.get("--config");
+  const auto config_files = program.get<std::vector<std::string>>("--config");
   CSimpleIni ini;
-  if (auto rc = ini.LoadFile(config_file.c_str()); rc < 0) {
-    throw std::runtime_error("Error loading config file " + config_file);
+  bool loaded = false;
+  for (auto &&config_file : config_files) {
+    if (std::filesystem::exists(config_file)) {
+      if (auto rc = ini.LoadFile(config_file.c_str()); rc < 0) {
+        throw std::runtime_error("Error loading config file " + config_file);
+      }
+      loaded = true;
+      break;
+    }
   }
+  if (!loaded) {
+    throw std::runtime_error("No config file found");
+  }
+
   auto get_value = [&ini](const auto &key, bool required) {
     auto value = ini.GetValue("kafka", key, "");
     if (strlen(value) == 0 && required) {
@@ -112,7 +132,6 @@ int main(int argc, char *argv[]) {
       rd_kafka_conf_set_opaque(rk_conf, stdout);
     } else {
       file.reset(fopen(log_file, "a"));
-      std::cout << "Opened log file " << log_file << std::endl;
       rd_kafka_conf_set_opaque(rk_conf, file.get());
       rd_kafka_conf_set_log_cb(
           rk_conf, +[](const rd_kafka_t *rk, int level, const char *fac,