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be55f545d5
This is an extraction of ArgsManager related functions from util/system into their own common file. Config file related functions are moved to common/config.cpp. The background of this commit is an ongoing effort to decouple the libbitcoinkernel library from the ArgsManager. The ArgsManager belongs into the common library, since the kernel library should not depend on it. See doc/design/libraries.md for more information on this rationale.
75 lines
3.2 KiB
C++
75 lines
3.2 KiB
C++
// Copyright (c) 2023 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <chainparams.h>
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#include <common/args.h>
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#include <common/init.h>
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#include <tinyformat.h>
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#include <util/fs.h>
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#include <util/translation.h>
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#include <algorithm>
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#include <exception>
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#include <optional>
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namespace common {
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std::optional<ConfigError> InitConfig(ArgsManager& args, SettingsAbortFn settings_abort_fn)
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{
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try {
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if (!CheckDataDirOption(args)) {
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return ConfigError{ConfigStatus::FAILED, strprintf(_("Specified data directory \"%s\" does not exist."), args.GetArg("-datadir", ""))};
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}
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std::string error;
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if (!args.ReadConfigFiles(error, true)) {
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return ConfigError{ConfigStatus::FAILED, strprintf(_("Error reading configuration file: %s"), error)};
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}
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// Check for chain settings (Params() calls are only valid after this clause)
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SelectParams(args.GetChainName());
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// Create datadir if it does not exist.
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const auto base_path{args.GetDataDirBase()};
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if (!fs::exists(base_path)) {
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// When creating a *new* datadir, also create a "wallets" subdirectory,
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// whether or not the wallet is enabled now, so if the wallet is enabled
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// in the future, it will use the "wallets" subdirectory for creating
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// and listing wallets, rather than the top-level directory where
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// wallets could be mixed up with other files. For backwards
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// compatibility, wallet code will use the "wallets" subdirectory only
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// if it already exists, but never create it itself. There is discussion
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// in https://github.com/bitcoin/bitcoin/issues/16220 about ways to
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// change wallet code so it would no longer be necessary to create
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// "wallets" subdirectories here.
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fs::create_directories(base_path / "wallets");
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}
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const auto net_path{args.GetDataDirNet()};
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if (!fs::exists(net_path)) {
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fs::create_directories(net_path / "wallets");
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}
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// Create settings.json if -nosettings was not specified.
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if (args.GetSettingsPath()) {
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std::vector<std::string> details;
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if (!args.ReadSettingsFile(&details)) {
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const bilingual_str& message = _("Settings file could not be read");
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if (!settings_abort_fn) {
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return ConfigError{ConfigStatus::FAILED, message, details};
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} else if (settings_abort_fn(message, details)) {
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return ConfigError{ConfigStatus::ABORTED, message, details};
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} else {
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details.clear(); // User chose to ignore the error and proceed.
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}
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}
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if (!args.WriteSettingsFile(&details)) {
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const bilingual_str& message = _("Settings file could not be written");
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return ConfigError{ConfigStatus::FAILED_WRITE, message, details};
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}
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}
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} catch (const std::exception& e) {
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return ConfigError{ConfigStatus::FAILED, Untranslated(e.what())};
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}
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return {};
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}
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} // namespace common
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