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-rw-r--r--src/song_save.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/src/song_save.c b/src/song_save.c
new file mode 100644
index 000000000..a7b398041
--- /dev/null
+++ b/src/song_save.c
@@ -0,0 +1,160 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "song_save.h"
+#include "song_print.h"
+#include "directory.h"
+#include "path.h"
+#include "utils.h"
+#include "tag.h"
+#include "log.h"
+
+#define SONG_KEY "key: "
+#define SONG_MTIME "mtime: "
+
+void writeSongInfoFromList(FILE * fp, SongList * list)
+{
+ ListNode *tempNode = list->firstNode;
+
+ fprintf(fp, "%s\n", SONG_BEGIN);
+
+ while (tempNode != NULL) {
+ fprintf(fp, "%s%s\n", SONG_KEY, tempNode->key);
+ fflush(fp);
+ printSongInfo(fileno(fp), (Song *) tempNode->data);
+ fprintf(fp, "%s%li\n", SONG_MTIME,
+ (long)((Song *) tempNode->data)->mtime);
+ tempNode = tempNode->nextNode;
+ }
+
+ fprintf(fp, "%s\n", SONG_END);
+}
+
+static void insertSongIntoList(SongList * list, ListNode ** nextSongNode,
+ char *key, Song * song)
+{
+ ListNode *nodeTemp;
+ int cmpRet = 0;
+
+ while (*nextSongNode
+ && (cmpRet = strcmp(key, (*nextSongNode)->key)) > 0) {
+ nodeTemp = (*nextSongNode)->nextNode;
+ deleteNodeFromList(list, *nextSongNode);
+ *nextSongNode = nodeTemp;
+ }
+
+ if (!(*nextSongNode)) {
+ insertInList(list, song->url, (void *)song);
+ } else if (cmpRet == 0) {
+ Song *tempSong = (Song *) ((*nextSongNode)->data);
+ if (tempSong->mtime != song->mtime) {
+ tag_free(tempSong->tag);
+ tag_end_add(song->tag);
+ tempSong->tag = song->tag;
+ tempSong->mtime = song->mtime;
+ song->tag = NULL;
+ }
+ freeJustSong(song);
+ *nextSongNode = (*nextSongNode)->nextNode;
+ } else {
+ insertInListBeforeNode(list, *nextSongNode, -1, song->url,
+ (void *)song);
+ }
+}
+
+static int matchesAnMpdTagItemKey(char *buffer, int *itemType)
+{
+ int i;
+
+ for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++) {
+ if (0 == strncmp(mpdTagItemKeys[i], buffer,
+ strlen(mpdTagItemKeys[i]))) {
+ *itemType = i;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+void readSongInfoIntoList(FILE * fp, SongList * list, Directory * parentDir)
+{
+ char buffer[MPD_PATH_MAX + 1024];
+ int bufferSize = MPD_PATH_MAX + 1024;
+ Song *song = NULL;
+ ListNode *nextSongNode = list->firstNode;
+ ListNode *nodeTemp;
+ int itemType;
+
+ while (myFgets(buffer, bufferSize, fp) && 0 != strcmp(SONG_END, buffer)) {
+ if (0 == strncmp(SONG_KEY, buffer, strlen(SONG_KEY))) {
+ if (song) {
+ insertSongIntoList(list, &nextSongNode,
+ song->url, song);
+ if (song->tag != NULL)
+ tag_end_add(song->tag);
+ }
+
+ song = newNullSong();
+ song->url = xstrdup(buffer + strlen(SONG_KEY));
+ song->type = SONG_TYPE_FILE;
+ song->parentDir = parentDir;
+ } else if (*buffer == 0) {
+ /* ignore empty lines (starting with '\0') */
+ } else if (song == NULL) {
+ FATAL("Problems reading song info\n");
+ } else if (0 == strncmp(SONG_FILE, buffer, strlen(SONG_FILE))) {
+ /* we don't need this info anymore
+ song->url = xstrdup(&(buffer[strlen(SONG_FILE)]));
+ */
+ } else if (matchesAnMpdTagItemKey(buffer, &itemType)) {
+ if (!song->tag) {
+ song->tag = tag_new();
+ tag_begin_add(song->tag);
+ }
+
+ tag_add_item(song->tag, itemType,
+ &(buffer
+ [strlen(mpdTagItemKeys[itemType]) +
+ 2]));
+ } 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
+ FATAL("songinfo: unknown line in db: %s\n", buffer);
+ }
+
+ if (song) {
+ insertSongIntoList(list, &nextSongNode, song->url, song);
+ if (song->tag != NULL)
+ tag_end_add(song->tag);
+ }
+
+ while (nextSongNode) {
+ nodeTemp = nextSongNode->nextNode;
+ deleteNodeFromList(list, nextSongNode);
+ nextSongNode = nodeTemp;
+ }
+}