Req: Print only the list of optimized images

[luboslives]

Hi again @toy.

I have a service which runs a script which runs image_optim over an entire WordPress uploads directory, so I also keep a cache of previously-optimized images using --cache-dir.

Unfortunately by default, image_optim prints out the complete list of files it checked in the directory. In this case, that is thousands of image files dating back several years. So at a certain point the results stop printing to my systemd service log.

Example, I upload img2 to the WordPress media uploads dir. I would get thousands of skipped files and the one optimized file:

...
------         /home/<host>/html/wp-content/uploads/2020/11/img1-240x240.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img1-360x360.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img1-720x720.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img1-960x960.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img1.jpg
12.17%   2.9K  /home/<host>/html/wp-content/uploads/2020/11/img2-240x240.jpg
10.56%   2.7K  /home/<host>/html/wp-content/uploads/2020/11/img2-360x203.jpg
 7.35%   3.1K  /home/<host>/html/wp-content/uploads/2020/11/img2-360x360.jpg
 4.31%   3.0K  /home/<host>/html/wp-content/uploads/2020/11/img2-720x405.jpg
 2.80%   3.3K  /home/<host>/html/wp-content/uploads/2020/11/img2-720x720.jpg
 2.30%   2.4K  /home/<host>/html/wp-content/uploads/2020/11/img2-960x540.jpg
 4.70%  20.9K  /home/<host>/html/wp-content/uploads/2020/11/img2.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img3-240x240.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img3-360x360.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img3-720x720.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img3-960x960.jpg
------         /home/<host>/html/wp-content/uploads/2020/11/img3.jpg
...

With the service log, it just stops printing around the year 2016. I'm using --no-progress and that saves a few lines, but this should probably have its own flag.

So, I would really benefit from only seeing the savings of the newly optimized images. You can decide if you want to make this the default behaviour and maybe add a new flag like --show-skipped-files or --print-cached-files, or you could keep the default behaviour and add a flag like --quite-mode or maybe create levels of verbosity?.... -v 1, -v 2. That would clash with the old -v flag though.

[toy]

What do you think about filtering output using grep, like image_optim --no-progress … | grep -v '^------ '?

[luboslives]

What do you think about filtering output using grep, like image_optim --no-progress … | grep -v '^------ '?

Thanks, that will do the trick! You can leave this idea open if you feel like it might be worth implementing into image_optim.