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/*
* Copyright (c) 2007 - 2023 by mod_tile contributors (see AUTHORS file)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; If not, see http://www.gnu.org/licenses/.
*/
#include <glib.h>
#include <iostream>
#include <stdio.h>
#include <string>
#include <tuple>
#include <unistd.h>
#include "catch_test_common.hpp"
#include "pstreams/pstream.hpp"
extern int foreground;
std::string err_log_lines, out_log_lines;
captured_stdio captured_stderr;
captured_stdio captured_stdout;
int run_command(std::string file, std::vector<std::string> argv, std::string input)
{
auto mode = redi::pstreams::pstdout | redi::pstreams::pstderr | redi::pstreams::pstdin;
argv.insert(argv.begin(), file);
redi::pstream proc(file, argv, mode);
std::string line;
err_log_lines = "";
out_log_lines = "";
if (!input.empty()) {
proc << input << redi::peof;
}
while (std::getline(proc.err(), line)) {
err_log_lines += line;
}
proc.clear();
while (std::getline(proc.out(), line)) {
out_log_lines += line;
}
return proc.close();
}
std::string read_stderr(int buffer_size)
{
char buffer[buffer_size];
read(captured_stderr.pipes[0], buffer, buffer_size);
return buffer;
}
void capture_stderr()
{
// Flush stderr first if you've previously printed something
fflush(stderr);
// Save stderr so it can be restored later
int temp_stderr;
temp_stderr = dup(fileno(stderr));
// Redirect stderr to a new pipe
int pipes[2];
pipe(pipes);
dup2(pipes[1], fileno(stderr));
captured_stderr.temp_fd = temp_stderr;
captured_stderr.pipes[0] = pipes[0];
captured_stderr.pipes[1] = pipes[1];
}
std::string get_captured_stderr(bool print)
{
// Terminate captured output with a zero
write(captured_stderr.pipes[1], "", 1);
// Restore stderr
fflush(stderr);
dup2(captured_stderr.temp_fd, fileno(stderr));
// Save & return the captured stderr
std::string log_lines = read_stderr();
if (print) {
std::cout << "err_log_lines: " << log_lines << "\n";
}
return log_lines;
}
std::string read_stdout(int buffer_size)
{
char buffer[buffer_size];
read(captured_stdout.pipes[0], buffer, buffer_size);
return buffer;
}
void capture_stdout()
{
// Flush stdout first if you've previously printed something
fflush(stdout);
// Save stdout so it can be restored later
int temp_stdout;
temp_stdout = dup(fileno(stdout));
// Redirect stdout to a new pipe
int pipes[2];
pipe(pipes);
dup2(pipes[1], fileno(stdout));
captured_stdout.temp_fd = temp_stdout;
captured_stdout.pipes[0] = pipes[0];
captured_stdout.pipes[1] = pipes[1];
}
std::string get_captured_stdout(bool print)
{
// Terminate captured output with a zero
write(captured_stdout.pipes[1], "", 1);
// Restore stdout
fflush(stdout);
dup2(captured_stdout.temp_fd, fileno(stdout));
// Save & return the captured stdout
std::string log_lines = read_stdout();
if (print) {
std::cout << "out_log_lines: " << log_lines << "\n";
}
return log_lines;
}
void start_capture(bool debug)
{
foreground = debug ? 1 : 0;
if (debug) {
setenv("G_MESSAGES_DEBUG", "all", 1);
#if GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION >= 79
// https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3710
std::cout << "Resetting G_MESSAGES_DEBUG env var in runtime no longer has an effect.\n";
const gchar *domains[] = {"all", NULL};
g_log_writer_default_set_debug_domains(domains);
#endif
}
capture_stderr();
capture_stdout();
}
std::tuple<std::string, std::string> end_capture(bool print)
{
setenv("G_MESSAGES_DEBUG", "", 1);
#if GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION >= 79
g_log_writer_default_set_debug_domains(NULL);
#endif
foreground = 0;
return std::tuple<std::string, std::string>(get_captured_stderr(print), get_captured_stdout(print));
}
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