No image should be generated if the utility cannot found anything useful to draw

[brlin-tw]

Currently, a commit_image_author.png file with 1x1px dimension will be generated even with an output like this:

Collecting commit dates for repo: .
Found commits in years: []
Commit counts per year: []
No commits found!

The file(1) output of the outputted image file:

$ file commit_image_null.png 
commit_image_null.png: PNG image data, 1 x 1, 8-bit/color RGBA, non-interlaced

It should not produce any images if nothing useful to draw is found.

[fourdollars]

@brlin-tw Could you provide your whole command line with some public Git repo?

[brlin-tw]

@fourdollars

@brlin-tw Could you provide your whole command line with some public Git repo?

 1738  git clone https://github.com/WoeUSB/WoeUSB.git
 1739  commits-tilewall 林博仁 WoeUSB/

I'm fairly certain it should find commits to draw so there should be another problem to look into.

[fourdollars]

@brlin-tw I can generate your image in Ubuntu 24.04.

$ commits-tilewall 林博仁 WoeUSB/
Collecting commit dates for repo: WoeUSB/
Found commits in years: [2018, 2017, 2016]
Commit counts per year: [(2018, 47), (2017, 578), (2016, 30)]
Current directory: /home/sylee/projects

$ snap list | grep commits-tilewall
commits-tilewall           0.1.0+git           8      latest/edge      fourdollars     -
$ snap connections commits-tilewall 
Interface        Plug                              Slot      Notes
desktop          commits-tilewall:desktop          :desktop  -
home             commits-tilewall:home             :home     -
removable-media  commits-tilewall:removable-media  -         -

[brlin-tw]

@fourdollars

I can reproduce this problem both on my personal and work laptop(both Ubuntu 24.04) :-/

[fourdollars]

@brlin-tw I don't know what happens in your Linux environment, but I can execute commits-tilewall in edge channel with a brand new installed Ubuntu 24.04 desktop environment.