mpd widget doesn't show cover art.

[Incognito4nonymous]

So, I recently restarted to work on my awesome configuration since I'm soon gonna work on a Raspberry Pi project on which I will be ultra lightweight software.
Personal projects aside, I finally got the Mpd widget to work after a year (and I don't even know how)
But almost, since this one won't show any cover, even though readers such as Audacious or XMMS can see them.
After some investigations, I saw that /tmp/mpdcover.png is missing.
I have Imagemagick installed on my computer.
My question is, how do I create that file ?
EDIT.
Mmmmh, Curiously it displays something when a assign a picture to the
local default_art = args.default_art or ""
Function.
I wonder where could be the problem.

[lcpz]

1. Do you have a cover image in the album folders, like specified here?
2. If you create a placeholder image as /tmp/mpdcover.png, does it show up in the notification?
3. Can you run lain/scripts/mpdcover? Check if it has the right execution permission.

[Incognito4nonymous]

1. Do you have a cover image in the album folders, like specified here?

Yup.

1. If you create a placeholder image as /tmp/mpdcover.png, does it show up in the notification?

Yup, it just vanishes.

3.Can you run lain/scripts/mpdcover? Check if it has the right execution permission.

Runs, tried to run it as root, nothing, it runs correctly but displays no image.

[lcpz]

1. Let's assume mycover.jpg is the album cover image in your current working directory. Run this command:

   $ convert "mycover.jpg" -scale "100x100" -gravity "center" -background "none" test.jpg 

   and check if test.jpg has been created and is the shrinked version of mycover.jpg.

2. If it works, probably it's the /tmp path causing issues. By "vanishes" do you mean that as soon as the file is being put in /tmp, it gets deleted?

Why don't you try another path? Modify this line and the spawn mpdcover from the shell to see if it depends on this.

[Incognito4nonymous]

Okay, giving it a try

By "vanishes" do you mean that as soon as the file is being put in /tmp, it gets deleted?

Yup, but only when the music player is launched, it stays when not playing anything.

[Incognito4nonymous]

Let's assume mycover.jpg is the album cover image in your current working directory. Run this command:
$ convert "mycover.jpg" -scale "100x100" -gravity "center" -background "none" test.jpg
and check if test.jpg has been created and is the shrinked version of mycover.jpg

Ok, gave it a try with a picture in my music directory, which I named mycover.jpg just to make myself sure, and it worked.

[lcpz]

Do this.

Why don't you try another path? Modify this line and the spawn mpdcover from the shell to see if it depends on this.

Choose a local user path.

[Incognito4nonymous]

Done, nothing changed.

[lcpz]

So, you spawned mpdcover from command line, changing the output path, and it's still not working.

But its main command works, and the problem seems unrelated to the output path.

Somehow this script doesn't work with your system. Are you able to modify these lines in order to make it run the convert command above, instead of mpdcover? Give it a try.

[Incognito4nonymous]

I'll try to see if there isn't some problem in the widget or in the script, it just ain't possible it doesn't work with my system.
If I find a solution I'll just come back here.

[lcpz]

This is unlikely, but try the following and see if /tmp/mpdcover.png is correctly created:

$ cd $HOME/.config/awesome/lain/scripts
$ lua
Lua 5.3.3  Copyright (C) 1994-2016 Lua.org, PUC-Rio
> os.execute("./mpdcover $HOME/Music album 100x100")
true    exit    0
> 

replace second argument path with actual music directory, and album with a relative album path. The correct output should be true exit 0.

[Incognito4nonymous]

Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
> os.execute("./mpdcover /ntfs/Users/Incognito/Music /Analog Dementia - Delusional Reruns 100x100")
convert: invalid argument for option `-scale': DementiaxDementia @ error/convert.c/ConvertImageCommand/2655.

[lcpz]

The error is caused by the fact that you did not escape the whitespace in your album.

Come on, I'd espect that from a Slack user.

Try quoting the album path with single quotes:

os.execute("./mpdcover /ntfs/Users/Incognito/Music 'Analog Dementia - Delusional Reruns' 100x100")

PS: Also, It'd be a good thing inf you update Lua (5.1.5 older than this project) and other awesome dependecies.

[Incognito4nonymous]

Heh heh, we all forget some stuff sometimes. 😄
Well, there is absolutely no output. ( ͡° _ʖ ͡°)

[lcpz]

You mean Lua doesn't output true exit 0?

Please update Lua to v. 5.3.3 and retry.

PS2: Thanks, you made me discover hardvapour. While I don't like its genesis, it's always interesting to discover new subgeneres. Sadly, these cultures rise and die very fast, just like the trends they reflect in the modern ages.

[Incognito4nonymous]

Heh heh, Wolfenstein OS X made really awesome albums, such as Deep Web Rising or End of the world Rave, I really recommend them, as for hardvapour, it is a quite special subgenre I have to admit.
I like how each song seems to tell a little story, sticking with an obscure theme.
Okay, gonna update my lua, I'll come back here as soon as it is finished.

[Incognito4nonymous]

true exit 0 ! 😃

[lcpz]

If it now outputs that, then the widget should work correctly. I really can't see why it should be otherwise.

PS: Listening to 2814.

[Incognito4nonymous]

Aaaahh, 2 8 1 4 is one of my favorites in Vaporwave, I like the Cyberpunk Dystopic vibes coming out of it.
Erh, now after the lua update, Awesome does not longer work, but I'm sure the widget will work after I find some way to start it up.

[lcpz]

Update each awesome dependency and let me know.

[Incognito4nonymous]

It seems related lo LGI, I'm gonna try to build it from source.

[Incognito4nonymous]

Oh blast, I recompiled everything, awesome to the dependencies, it does not longer work.
Dammit. Awesome just refuses to launch, and and when I try to compile it, it just days:

lua: (command line):1: module 'lgi' not found:
        no field package.preload['lgi']
        no file '/usr/share/lua/5.3/lgi.lua'
        no file '/usr/share/lua/5.3/lgi/init.lua'
        no file '/usr/lib64/lua/5.3/lgi.lua'
        no file '/usr/lib64/lua/5.3/lgi/init.lua'
        no file './lgi.lua'
        no file './lgi/init.lua'
        no file '/usr/lib64/lua/5.3/lgi.so'
        no file '/usr/lib64/lua/5.3/loadall.so'
        no file './lgi.so'
stack traceback:
        [C]: in function 'require'
        (command line):1: in main chunk
        [C]: in ?


       WARNING
       =======

 The lgi check failed.
 The Lua GObject introspection package is just a runtime dependency, so it is not
 necessary for building awesome. However, awesome needs it to run.
 Add AWESOME_IGNORE_LGI=1 to your environment to continue.


CMakeFiles/lgi-check.dir/build.make:57: recipe for target 'CMakeFiles/lgi-check' failed
make[2]: *** [CMakeFiles/lgi-check] Error 1
CMakeFiles/Makefile2:205: recipe for target 'CMakeFiles/lgi-check.dir/all' failed
make[1]: *** [CMakeFiles/lgi-check.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error

Uuuuuuuhggggggggghhhhhnnnnn....
I even deleted all the related packages, it just doesnt work. 😞
I'll try tomorrow after a good night of sleep.

[Incognito4nonymous]

The problem is indeed linked to my lgi package, it installs libraries for the 5.1.x version of Lua, heh, you're indeed an arch linux user...

[lcpz]

Even if it installs 5.1 branch libs, you should still be able to install a full Lua 5.3+ too.

EDIT: Actually, you don't need to update awesome, you just need to install Lua 5.3+.

[Incognito4nonymous]

Lua has been successfully installed already, it's just that awesome doesn't longer detect lgi, I just recompiled the package to see if if detected where the issue was coming from.
As a matter of fact I'm pretty much out of ideas for now, but I'll find a solution in due time.
In the meantime, I have to withstand KDE, aaaarrrrrrhhhhh....

[Incognito4nonymous]

It seems I'm stuck with Lua 5.1.5, the repos doesn't have the latest version of lgi, and all build attempts failed.
Dammit, I guess I'll have to wait for a newer release then...
Hopefully Raspbian will have the latest version.
If I'm getting adventurous I'll try other alternatives, in the meantime, falling back to 5.1...
You don't have an older version of the script running on that version of Lua ?

[lcpz]

Aren't you building from source? Or you meant slackbuilds? Because installing from (real) source should let you avoid stucking with 5.1.5.

You don't have an older version of the script running on that version of Lua?

This project started after 2012 and v.5.1.5, so unfortunately no.

We've explored the problem enough.

You know how to solve it, so when you'll be able to do it, reply back here if some other weird behaviour should appear.

[lcpz]

Uhm, there's a last, very simple check.

Until now I assumed you set everything properly; as a last attempt I'll assume the contrary.

Did you set music_dir in your widget?

mpdwidget = lain.widgets.mpd({
    music_dir = "/path/to/music/dir",
    -- [...]
})

[Incognito4nonymous]

Okay awesome, thanks for the help ! Whenever that lua problem is solved I'll come back to tell if it worked or not.
Aaaaand yup, my music directory is well set, I checked many times before posting here 😉 Let's be honest it would have been dum to forget that.
Really big thumbs up, now as it seems I have solved any bug that could potentially happen to me if I port this to a five inch touchscreen on a Raspberry Pi, thanks again Master Luke.
If I succeed in my project I'll give you my fork. 😃

[Incognito4nonymous]

Sooo, I came back to this, aand it is Indeed a lua version problem, everything works perfectly to bits on my Raspbian and the code doesn't even needs any modifications, even on a 3.5 inch screen.