mpd/src/PlaylistDatabase.cxx
2023-03-06 14:59:48 +01:00

55 lines
1.4 KiB
C++

// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "PlaylistDatabase.hxx"
#include "db/PlaylistVector.hxx"
#include "lib/fmt/RuntimeError.hxx"
#include "io/LineReader.hxx"
#include "io/BufferedOutputStream.hxx"
#include "time/ChronoUtil.hxx"
#include "util/StringStrip.hxx"
#include <fmt/format.h>
#include <cstring>
#include <stdlib.h>
void
playlist_vector_save(BufferedOutputStream &os, const PlaylistVector &pv)
{
for (const PlaylistInfo &pi : pv) {
os.Fmt(FMT_STRING(PLAYLIST_META_BEGIN "{}\n"), pi.name);
if (!IsNegative(pi.mtime))
os.Fmt(FMT_STRING("mtime: {}\n"),
std::chrono::system_clock::to_time_t(pi.mtime));
os.Write("playlist_end\n");
}
}
void
playlist_metadata_load(LineReader &file, PlaylistVector &pv, const char *name)
{
PlaylistInfo pm(name);
char *line, *colon;
const char *value;
while ((line = file.ReadLine()) != nullptr &&
std::strcmp(line, "playlist_end") != 0) {
colon = std::strchr(line, ':');
if (colon == nullptr || colon == line)
throw FmtRuntimeError("unknown line in db: {}", line);
*colon++ = 0;
value = StripLeft(colon);
if (std::strcmp(line, "mtime") == 0)
pm.mtime = std::chrono::system_clock::from_time_t(strtol(value, nullptr, 10));
else
throw FmtRuntimeError("unknown line in db: {}", line);
}
pv.UpdateOrInsert(std::move(pm));
}