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Add redirect for stdout to a file #285

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Merged
merged 1 commit into from
Nov 3, 2024
Merged

Add redirect for stdout to a file #285

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10 changes: 10 additions & 0 deletions main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
*/

#include <cstdint>
#include <cstdio>
#if defined(WIN32)
#define _CRTDBG_MAP_ALLOC
#include <crtdbg.h>
Expand All @@ -40,6 +41,7 @@ void PrintUsage() {
<< std::endl
<< "Options:" << std::endl
<< " --help Display this message" << std::endl
<< " -o,--output Print output to file. [default: stdout]" << std::endl
<< " -y,--yaml Format output as YAML. [default: disabled]" << std::endl
<< " -v VERBOSITY Specify output verbosity (YAML output "
"only):"
Expand Down Expand Up @@ -80,6 +82,7 @@ void PrintUsage() {
int main(int argn, char** argv) {
ArgParser arg_parser;
arg_parser.AddFlag("h", "help", "");
arg_parser.AddOptionString("o", "output", "");
arg_parser.AddFlag("y", "yaml", "");
arg_parser.AddOptionInt("v", "verbosity", "", 0);
arg_parser.AddFlag("e", "entrypoint", "");
Expand All @@ -97,6 +100,10 @@ int main(int argn, char** argv) {
return EXIT_SUCCESS;
}

std::string output_file;
arg_parser.GetString("o", "output", &output_file);
FILE* output_fp = output_file.empty() ? NULL : freopen(output_file.c_str(), "w", stdout);

bool output_as_yaml = arg_parser.GetFlag("y", "yaml");

int yaml_verbosity = 0;
Expand Down Expand Up @@ -189,5 +196,8 @@ int main(int argn, char** argv) {
}
}

if (output_fp) {
fclose(output_fp);
}
return EXIT_SUCCESS;
}
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