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// file : tests/entry-time/driver.cxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#ifndef __cpp_lib_modules_ts
#include <string>
#include <chrono>
#include <iostream>
#endif
// Other includes.
#ifdef __cpp_modules_ts
#ifdef __cpp_lib_modules_ts
import std.core;
import std.io;
#endif
import butl.path;
import butl.filesystem;
import butl.optional; // @@ MOD Clang should not be necessary.
#else
#include <libbutl/path.mxx>
#include <libbutl/optional.mxx>
#include <libbutl/timestamp.mxx>
#include <libbutl/filesystem.mxx>
#endif
#undef NDEBUG
#include <cassert>
using namespace std;
using namespace butl;
// Usage: argv[0] (-p|-s <time>) (-f|-d) (-m|-a) <path>
//
// Prints or sets the modification or access time for the specified filesystem
// entry.
//
// -p
// Print the filesystem entry time as a number of milliseconds passed
// since UNIX epoch.
//
// -s
// Set the filesystem entry time that is represented as a number of
// milliseconds passed since UNIX epoch.
//
// -f
// The specified path is a file.
//
// -d
// The specified path is a directory.
//
// -m
// Print or set the filesystem entry modification time.
//
// -a
// Print or set the filesystem entry access time.
//
int
main (int argc, const char* argv[])
{
using butl::optional;
optional<bool> set;
optional<bool> dir;
optional<bool> mod;
optional<path> p;
timestamp tm;
assert (argc > 0);
for (int i (1); i != argc; ++i)
{
string v (argv[i]);
if (v == "-p")
{
assert (!set);
set = false;
}
else if (v == "-s")
{
assert (!set);
set = true;
assert (i + 1 != argc);
tm = timestamp (chrono::duration_cast<duration> (
chrono::milliseconds (stoull (argv[++i]))));
}
else if (v == "-f")
{
assert (!dir);
dir = false;
}
else if (v == "-d")
{
assert (!dir);
dir = true;
}
else if (v == "-m")
{
assert (!mod);
mod = true;
}
else if (v == "-a")
{
assert (!mod);
mod = false;
}
else
{
assert (set && dir && mod && !p);
p = path (move (v));
}
}
assert (set);
assert (dir);
assert (mod);
assert (p);
if (*set)
{
if (*dir)
{
if (*mod)
dir_mtime (path_cast<dir_path> (*p), tm);
else
dir_atime (path_cast<dir_path> (*p), tm);
}
else
{
if (*mod)
file_mtime (*p, tm);
else
file_atime (*p, tm);
}
}
else
{
if (*dir)
tm = *mod
? dir_mtime (path_cast<dir_path> (*p))
: dir_atime (path_cast<dir_path> (*p));
else
tm = *mod ? file_mtime (*p) : file_atime (*p);
cout << chrono::duration_cast<chrono::milliseconds> (
tm.time_since_epoch ()).count () << endl;
}
}
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