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Add check for absolute path of config file #1276

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merged 15 commits into from
May 28, 2020
Merged

Add check for absolute path of config file #1276

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5109e94
Add check for absolute path of config file
youngest-person-alive May 7, 2020
6743db9
Added check for windows systems.
youngest-person-alive May 7, 2020
104408e
Changed to using C++17's filepath checker - DOES NOT BUILD
youngest-person-alive May 8, 2020
0f01c91
Moved the file conversion to utils/filesystem
youngest-person-alive May 8, 2020
bbc9a02
Added includ for windows API file
youngest-person-alive May 9, 2020
b0360c7
fixed windows API call hopefully
youngest-person-alive May 9, 2020
b14a0c0
Typecast string to LPCSTR for win API call
youngest-person-alive May 9, 2020
062fbab
Removed previous solution
youngest-person-alive May 9, 2020
0c54367
Use the path given, but default to lc0.config in binary directory.
youngest-person-alive May 9, 2020
95b081b
Cleaned up includes
youngest-person-alive May 10, 2020
65c23b2
Removed extra line
youngest-person-alive May 11, 2020
ea7e4b8
Changed default file parameter
youngest-person-alive May 16, 2020
d9adf7e
Changed filename const-ness
youngest-person-alive May 16, 2020
a603ec1
Fixed default filename
youngest-person-alive May 16, 2020
8fc4bba
Added const default filename.
youngest-person-alive May 26, 2020
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22 changes: 13 additions & 9 deletions src/utils/configfile.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -81,14 +81,22 @@ std::string ConfigFile::ProcessConfigFlag(
bool ConfigFile::Init(OptionsParser* options) {
arguments_.clear();

// Get the relative path from the config file parameter.
// Get the path from the config file parameter.
std::string filename = ProcessConfigFlag(CommandLine::Arguments());

// If filename is an empty string then return true. This is to override
// If filename is an empty string then return true. This is to override
// loading the default configuration file.
if (filename == "") return true;

filename = CommandLine::BinaryDirectory() + "/" + filename;
// Check to see if we are using the default config file or not.
const bool using_default_config =
filename == std::string(kDefaultConfigFile);
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I think it's better to have a separate value for default behaviour, like "<default>" or "<auto>" (which still will read $LC0_DIRECTORY/lc0.config), similarly to what we have for weights file (there we have "<autodiscover>").

Otherwise when run like ./lc0 -c lc0.cfg it will search in the current directory, while for ./lc0 -c lc0.config it will search in the directory of the binary, which is a confusing inconsistency.

Also in future we'll try several locations by default (possibly with different file names, not only directories, e.g. /etc/lc0.cfg vs ~/.lc0rc), and it's more logical if the parameter doesn't have file name in it.

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I have made changes along these lines. Let me know if this is what you were thinking 🙂


// If no logfile was set on the command line, then the default is
// to check in the binary directory.
if (using_default_config) {
filename = CommandLine::BinaryDirectory() + "/" + filename;
}

// Parses the file into the arguments_ vector.
if (!ParseFile(filename, options)) return false;
Expand All @@ -100,14 +108,10 @@ bool ConfigFile::ParseFile(const std::string& filename,
OptionsParser* options) {
std::ifstream input(filename);

// Check to see if we are using the default config file or not.
OptionsDict dict = options->GetOptionsDict();
const bool using_default_config = dict.IsDefault<std::string>(kConfigFileId);

if (!input.is_open()) {
// It is okay if we cannot open the default file since it is normal
// for it to not exist.
if (using_default_config) return true;
// for it to not exist. Check it is default by comparing to <default>.
if (filename == std::string(kDefaultConfigFile)) return true;

CERR << "Could not open configuration file: " << filename;
return false;
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1 change: 1 addition & 0 deletions src/utils/configfile.h
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Expand Up @@ -51,6 +51,7 @@ class ConfigFile {
// Parses the config file into the arguments_ vector.
static bool ParseFile(const std::string& filename, OptionsParser* options);

// Returns the absolute path to the config file argument given.
static std::string ProcessConfigFlag(const std::vector<std::string>& args);

static std::vector<std::string> arguments_;
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