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#include <config.h>
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include "elist.h"
#include "prefs.h"
#include "prefs_versions.h"
/*** private functions ******************************************************/
static int compare_version(char *v1, char *v2)
{
char *p1, *p2;
int n1, n2;
p1 = v1;
p2 = v2;
while (*p1 && *p2) {
n1 = atoi(p1);
n2 = atoi(p2);
if (n1 < n2) return -1;
if (n1 > n2) return 1;
p1 = strchr(p1, '.');
p2 = strchr(p2, '.');
if (!p1 && p2) return -1;
if (p1 && !p2) return 1;
if (!p1 && !p2) return 0;
p1++;
p2++;
}
return 0;
}
/*** public functions *******************************************************/
gboolean prefs_versions_allow(char *file_ver)
{
/* allow interval from 0.5 to current version */
if (compare_version(file_ver, "0.5") >= 0 && compare_version(file_ver, PACKAGE_VERSION) <= 0)
return TRUE;
g_warning("Preferences file version is incompatible (%s)", file_ver);
return FALSE;
}
void prefs_versions_convert(char *file_ver)
{
gboolean conv = FALSE;
/* changes in 0.6 */
if (compare_version(file_ver, "0.6") < 0) {
/* file name templates changed, delete old ones */
pref_unset("tt:format_mru");
pref_unset("rt:format_mru");
conv = TRUE;
}
/* changes in 0.9 */
if (compare_version(file_ver, "0.9") < 0) {
/* "vorbis_edit:genre_mru" was renamed to "common_edit:genre_mru" */
GEList *genre_list = pref_get_ref("vorbis_edit:genre_mru");
if (genre_list) {
pref_set("common_edit:genre_mru", PREF_STRING | PREF_LIST, genre_list);
pref_unset("vorbis_edit:genre_mru");
}
conv = TRUE;
}
if (conv)
g_warning("Converted old preferences file (%s)", file_ver);
}
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