/* * Copyright (C) 2003-2009 The Music Player Daemon Project * http://www.musicpd.org * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "song_save.h" #include "song.h" #include "tag_save.h" #include "directory.h" #include "tag.h" #include <glib.h> #include <stdlib.h> #undef G_LOG_DOMAIN #define G_LOG_DOMAIN "song" #define SONG_KEY "key: " #define SONG_MTIME "mtime: " static void song_save_url(FILE *fp, struct song *song) { if (song->parent != NULL && song->parent->path != NULL) fprintf(fp, SONG_FILE "%s/%s\n", directory_get_path(song->parent), song->url); else fprintf(fp, SONG_FILE "%s\n", song->url); } static int song_save(struct song *song, void *data) { FILE *fp = data; fprintf(fp, SONG_KEY "%s\n", song->url); song_save_url(fp, song); if (song->tag != NULL) tag_save(fp, song->tag); fprintf(fp, SONG_MTIME "%li\n", (long)song->mtime); return 0; } void songvec_save(FILE *fp, struct songvec *sv) { fprintf(fp, "%s\n", SONG_BEGIN); songvec_for_each(sv, song_save, fp); fprintf(fp, "%s\n", SONG_END); } static void insertSongIntoList(struct songvec *sv, struct song *newsong) { struct song *existing = songvec_find(sv, newsong->url); if (!existing) { songvec_add(sv, newsong); if (newsong->tag) tag_end_add(newsong->tag); } else { /* prevent dupes, just update the existing song info */ if (existing->mtime != newsong->mtime) { if (existing->tag != NULL) tag_free(existing->tag); if (newsong->tag) tag_end_add(newsong->tag); existing->tag = newsong->tag; existing->mtime = newsong->mtime; newsong->tag = NULL; } song_free(newsong); } } static char * matchesAnMpdTagItemKey(char *buffer, enum tag_type *itemType) { int i; for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++) { size_t len = strlen(tag_item_names[i]); if (0 == strncmp(tag_item_names[i], buffer, len) && buffer[len] == ':') { *itemType = i; return g_strchug(buffer + len + 1); } } return NULL; } void readSongInfoIntoList(FILE *fp, struct songvec *sv, struct directory *parent) { enum { buffer_size = 32768, }; char *buffer = g_malloc(buffer_size); struct song *song = NULL; enum tag_type itemType; const char *value; while (fgets(buffer, buffer_size, fp) && !g_str_has_prefix(buffer, SONG_END)) { g_strchomp(buffer); if (0 == strncmp(SONG_KEY, buffer, strlen(SONG_KEY))) { if (song) insertSongIntoList(sv, song); song = song_file_new(buffer + strlen(SONG_KEY), parent); } else if (*buffer == 0) { /* ignore empty lines (starting with '\0') */ } else if (song == NULL) { g_error("Problems reading song info"); } else if (0 == strncmp(SONG_FILE, buffer, strlen(SONG_FILE))) { /* we don't need this info anymore */ } else if ((value = matchesAnMpdTagItemKey(buffer, &itemType)) != NULL) { if (!song->tag) { song->tag = tag_new(); tag_begin_add(song->tag); } tag_add_item(song->tag, itemType, value); } else if (0 == strncmp(SONG_TIME, buffer, strlen(SONG_TIME))) { if (!song->tag) { song->tag = tag_new(); tag_begin_add(song->tag); } song->tag->time = atoi(&(buffer[strlen(SONG_TIME)])); } else if (0 == strncmp(SONG_MTIME, buffer, strlen(SONG_MTIME))) { song->mtime = atoi(&(buffer[strlen(SONG_MTIME)])); } else g_error("unknown line in db: %s", buffer); } g_free(buffer); if (song) insertSongIntoList(sv, song); }