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ecmd_tag.c
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ecmd_tag.c
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/*
* Copyright (c) 2010, 2011, 2012 Ryan Flannery <[email protected]>
* Copyright (c) 2013 Tiago Cunha <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ecmd.h"
#include "meta_info.h"
static char *artist;
static char *album;
static char *title;
static char *genre;
static char *comment;
static unsigned int track;
static unsigned int year;
static int
ecmd_tag_parse(int argc, char **argv)
{
const char *errstr;
int ch;
while ((ch = getopt(argc, argv, "A:T:a:c:g:t:y:")) != -1) {
switch (ch) {
case 'A':
free(album);
if ((album = strdup(optarg)) == NULL)
err(1, "%s: strdup ALBUM failed", argv[0]);
break;
case 'T':
track = (unsigned int) strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL)
errx(1, "invalid track '%s': %s", optarg, errstr);
break;
case 'a':
free(artist);
if ((artist = strdup(optarg)) == NULL)
err(1, "%s: strdup ARTIST failed", argv[0]);
break;
case 'c':
free(comment);
if ((comment = strdup(optarg)) == NULL)
err(1, "%s: strdup COMMENT failed", argv[0]);
break;
case 'g':
free(genre);
if ((genre = strdup(optarg)) == NULL)
err(1, "%s: strdup GENRE failed", argv[0]);
break;
case 't':
free(title);
if ((title = strdup(optarg)) == NULL)
err(1, "%s: strdup TITLE failed", argv[0]);
break;
case 'y':
year = (unsigned int) strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL)
errx(1, "invalid year '%s': %s", optarg, errstr);
break;
case 'h':
case '?':
default:
return -1;
}
}
return 0;
}
static int
ecmd_tag_check(void)
{
if (artist == NULL && album == NULL && title == NULL && genre == NULL
&& track == 0 && year == 0 && comment == NULL)
return -1;
return 0;
}
static void
ecmd_tag_exec(int argc, char **argv)
{
TagLib_File *tag_file;
TagLib_Tag *tag;
int i;
/* be verbose, indicate what we're setting... */
printf("Setting the following tags to all files:\n");
if (artist != NULL) printf("%10.10s => '%s'\n", "artist", artist);
if (album != NULL) printf("%10.10s => '%s'\n", "album", album);
if (title != NULL) printf("%10.10s => '%s'\n", "title", title);
if (genre != NULL ) printf("%10.10s => '%s'\n", "genre", genre);
if (track) printf("%10.10s => %u\n", "track", track);
if (year) printf("%10.10s => %u\n", "year", year);
if (comment != NULL) printf("%10.10s => '%s'\n", "comment", comment);
/* tag files ... */
taglib_set_strings_unicode(false);
for (i = 0; i < argc; i++) {
printf("tagging: '%s'\n", argv[i]);
/* extract taglib stuff */
if ((tag_file = taglib_file_new(argv[i])) == NULL) {
warnx("TagLib: failed to open file '%s': skipping.", argv[i]);
warnx(" => Causes: format not supported by TagLib or format doesn't support tags");
continue;
}
tag = taglib_file_tag(tag_file);
/* apply changes */
if (artist != NULL) taglib_tag_set_artist(tag, artist);
if (album != NULL) taglib_tag_set_album(tag, album);
if (title != NULL) taglib_tag_set_title(tag, title);
if (genre != NULL) taglib_tag_set_genre(tag, genre);
if (track) taglib_tag_set_track(tag, track);
if (year) taglib_tag_set_year(tag, year);
if (comment != NULL) taglib_tag_set_comment(tag, comment);
/* save changes and cleanup */
taglib_file_save(tag_file);
taglib_tag_free_strings();
taglib_file_free(tag_file);
}
}
const struct ecmd ecmd_tag = {
"tag", NULL,
"[-A album] [-T track] [-a artist] [-c comment] [-g genre] [-t title]\n\
\t[-y year] path [...]",
1, -1,
ecmd_tag_parse,
ecmd_tag_check,
ecmd_tag_exec
};