`convert`: wrong file used for input

[brunoais]

ImageMagick version

6.9.11-60

Operating system

Linux

Operating system, version and so on

ubuntu 22.04c (linux 6.1.0)

Description

Given a directory with 2 files:

-rw-rw-r-- 1 me me  4295 today imagea.png
-rw-rw-r-- 1 me me 45604 today imageb.png

If I try to convert to convert imageb to webp, convert converts imagea instead.
If I remove imagea, convert correctly converts the only file in the directory (imageb)

Steps to Reproduce

1. Execute: convert './imageb.png' -quality 100 -define webp:lossless=true imageb_l.webp
2. imagea was converted instead of imageb

Images

[urban-warrior]

Unfortunately, we cannot reproduce the issue. Your command works as expected for us. Add -verbose to your command line and post the output of the command here.

[brunoais]

-verbose shows a perfectly normal output.

$ convert -verbose './imageb.png' -quality 100 -define webp:lossless=true imageb_l.webp
./imageb.png PNG 2338x3441 2338x3441+0+0 8-bit sRGB 45604B 0.100u 0:00.134
./imageb.png=>imageb_l.webp PNG 2338x3441 2338x3441+0+0 8-bit sRGB 8784B 0.180u 0:00.335

Seems like there's more to it. Seems like this happens when there's a gvfs path in the way. E.g.
/run/user/1000/gvfs/sftp:host=remotehost,user=myRemoteUserUsername/path/toDirectory/file

but if I make a symlink to that gvfs directory locally (E.g. cd /home/user/path/symlinkName/toDirectory/file; ln -s '/run/user/1000/gvfs/sftp:host=remotehost,user=myRemoteUserUsername/path/' symlinkName )

so the path looks like a normal:
/home/user/path/symlinkName/toDirectory/file
the issue remains.

I tried connecting with gvfs to my own PC and whether the issue happens is a hit or miss. To a different PC (even if in the same network) appears to be easily reproducible.

Does this help?

[urban-warrior]

Type convert -format | grep webp. Confirm you have the Webp delegate.

Try this command sequence:

$ cd /run/user/1000/gvfs/sftp:host=remotehost,user=myRemoteUserUsername/path/
$ convert rose: testa.png
$ convert logo: testb.png
$ convert -verbose './testb.png' -quality 100 -define webp:lossless=true testb.webp
$ compare -metric rmse testb.webp testb.png null:

If the last command returns a distortion of 0, the command is working as expected. If not, something screwy is occurring as you suggest.

The next step would be to repeat the test with a GVFS path that does not include a colon, i.e., remove the sftp:host.

Finally, repeat the test with the latest release of ImageMagick 6, 6.1.12-88 to determine if the issue remains. You could also try with the latest release of ImageMagick 7.

[brunoais]

OK. I was rambling with the inconsistencies because this wasn't making any sense.

After some rambling I found out that this is happening with both my image viewers but not with Krita or GIMP.
So I went to check the file contents and analyze the outcome... I was able to confirm that it was actually an issue which applied to both my image viewers.
When I thought it was a file problem, seems to be an image viewer problem. It lies to me telling it's opening the .webp file but seems like it doesn't do a good job with the internet delays.

Sorry for the bother. Thank you for the patience. the problem was actually elsewhere 🤦