Musicnamer NPM

musicnamer

Organize your music collection

Rename music files based on their tags. By default, musicnamer will take your music files and rename them to a format like:

:artist/:album/:trackno - :title.:ext

This package is not meant to be used as a Node module, but rather as a command line tool

Usage

Invocation of musicnamer is simple: just run the program with files as arguments and it will do its thing on them.

~$ musicnamer -h
Usage: musicnamer.js file1.mp3 file2.mp3 file3.mp3 ...

given a list of files from the command line, rename them
based on their id3 tags

-f, --format     custom format line to use (defaults to :artist/:album/:trackno - :title.:ext)
-h, --help       print this message and exit
-i, --init       create a config file at /Users/dave.eddy/.musicnamer.json
-j, --json       output json, assumes --dry-run and --tags
-n, --dry-run    don't actually rename files, just print what actions would be taken
-t, --tags       just print the tags from the files processesd, assumes --dry-run
-u, --updates    check for available updates
-v, --version    print the version number and exit

Examples

To invoke musicnamer, simply pass a file over the command line as an argument

dave @ [ bahamas10 :: (SunOS) ] ~ $ musicnamer somesong.mp3
warn: error reading ~/.musicnamer.json, running with default config
warn: invoke with --init to create the config file

processing: somesong.mp3
moving: /home/dave/somesong.mp3
->  to: BEING/Arrival/12 - The Singularity (Cosmists II).mp3

Music namer renamed the file for us. What effectively happened here is this

mkdir -p "BEING/Arrival"
mv somesong.mp3 "BEING/Arrival/12 - The Singularity (Cosmists II).mp3"

NOTE: musicnamer renames files relative to your current directory.

We can see the error message above complaining because the config file was not found/ unreadable. We can fix this warning with this:

dave @ [ bahamas10 :: (SunOS) ] ~ $ musicnamer --init
writing config to /home/dave/.musicnamer.json

More details on the configuration file can be found in the Configuration section below.

Now let's say we wanted to rename a bunch of files, but were worried about modifying them without testing. You can run musicnamer with a dry run option to show what action would have been taken.

dave @ [ bahamas10 :: (SunOS) ] ~ $ musicnamer --dry-run somesong.mp3
moving: somesong.mp3
->  to: BEING/Arrival/12 - The Singularity (Cosmists II).mp3
no action taken

As you can see, the warning message no longer shows because we have created a config file. Also, musicnamer just printed out what it would have done, but didn't actually call rename(2) on any of the files or make any new directories.

You can also test out files to get a glimpse into how musicnamer sees your files. There is a command line switch to have musicnamer print out the tags of files without renaming them.

dave @ [ bahamas10 :: (SunOS) ] ~ $ musicnamer --tags music/*.mp3
processing: song.mp3
{ title: 'Stimulus',
  artist: [ 'The Omega Experiment' ],
  albumartist: [],
  album: 'The Omega Experiment',
  year: '2012',
  track: { no: 2, of: 0 },
  genre: [],
  disk: { no: 0, of: 0 },
  picture:
   [ { format: '浩条⽥灪来cover\u0000',
       data: <Buffer 00 ff db 00 43 00 02 01 01 01 01 01 02 01 01 01 02 02 02 02 02 04 03 02 02 02 02 05 04 04 03 04 06 05 06 06 06 05 06 06 06 07 09 08 06 07 09 07 06 06 08 ...> } ] }
processing: song2.mp3
{ title: 'Motion',
  artist: [ 'The Omega Experiment' ],
  albumartist: [],
  album: 'The Omega Experiment',
  year: '2012',
  track: { no: 3, of: 0 },
  genre: [],
  disk: { no: 0, of: 0 },
  picture:
   [ { format: '浩条⽥灪来cover\u0000',
       data: <Buffer 00 ff db 00 43 00 02 01 01 01 01 01 02 01 01 01 02 02 02 02 02 04 03 02 02 02 02 05 04 04 03 04 06 05 06 06 06 05 06 06 06 07 09 08 06 07 09 07 06 06 08 ...> } ] }

This output is good to look for debugging information, without making any modifications to the filesystem.

Configuration

musicnamer --init will create a config file in ~/.musicnamer.json. This config file has a key called format, which has the format to use when renaming files.

~$ cat ~/.musicnamer.json
{
  "format": ":artist/:album/:trackno - :title.:ext"
}

The --init option will write out the default format value to the config file, this is the format that will be used if the config file is not present.

Possible options for variables are: