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[GH-ISSUE #74] Cannot run git-sim to generate only images #47

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opened 2026-03-02 16:47:45 +03:00 by kerem · 6 comments
kerem commented 2026-03-02 16:47:45 +03:00
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Originally created by @bendem on GitHub (Mar 15, 2023).
Original GitHub issue: https://github.com/initialcommit-com/git-sim/issues/74

The documentation says it will generate images unless --animate is provided to the command line, I can't seem to not generate videos.

> git-sim -d --img-format=png --no-animate --low-quality --media-dir=../version-sample.git-sim --all merge dev
Simulating: git merge dev
Output image location: ../version-sample.git-sim/git-sim_media/version-sample/images/git-sim-merge_03-15-23_14-55-45.png

> find ../version-sample.git-sim
../version-sample.git-sim
../version-sample.git-sim/git-sim_media
../version-sample.git-sim/git-sim_media/version-sample
../version-sample.git-sim/git-sim_media/version-sample/videos
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/git-sim-merge_03-15-23_14-55-45.mp4
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge/1559455761_51972775_1184456380.mp4
../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge/partial_movie_file_list.txt
../version-sample.git-sim/git-sim_media/version-sample/texts
../version-sample.git-sim/git-sim_media/version-sample/texts/eb86629d54dd331d.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/06ce9cf5e00359e1.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/bae3cfb60178f8cf.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/177c442328e6a07a.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/642cbb1c7323e76e.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/18448f657b077afa.svg
../version-sample.git-sim/git-sim_media/version-sample/texts/d7e7e68bfe087ec3.svg
../version-sample.git-sim/git-sim_media/version-sample/images
../version-sample.git-sim/git-sim_media/version-sample/images/git-sim-merge_03-15-23_14-55-45.png

System infos:

> cat /etc/system-release
Rocky Linux release 8.7 (Green Obsidian)

> uname -r
5.15.90.1-microsoft-standard-WSL2

> dnf list --installed ffmpeg cairo pango | cat
Installed Packages
cairo.x86_64                1.15.12-6.el8                @appstream
ffmpeg.x86_64               4.2.8-1.el8                  @rpmfusion-free-updates
pango.x86_64                1.42.4-8.el8                 @appstream

> pipx list
venvs are in /home/demarteaub/.local/pipx/venvs
apps are exposed on your $PATH at /home/demarteaub/.local/bin
   package git-sim 0.2.7, installed using Python 3.9.13
    - git-dummy
    - git-sim
Originally created by @bendem on GitHub (Mar 15, 2023). Original GitHub issue: https://github.com/initialcommit-com/git-sim/issues/74 The documentation says it will generate images unless `--animate` is provided to the command line, I can't seem to not generate videos. ```console > git-sim -d --img-format=png --no-animate --low-quality --media-dir=../version-sample.git-sim --all merge dev Simulating: git merge dev Output image location: ../version-sample.git-sim/git-sim_media/version-sample/images/git-sim-merge_03-15-23_14-55-45.png > find ../version-sample.git-sim ../version-sample.git-sim ../version-sample.git-sim/git-sim_media ../version-sample.git-sim/git-sim_media/version-sample ../version-sample.git-sim/git-sim_media/version-sample/videos ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15 ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/git-sim-merge_03-15-23_14-55-45.mp4 ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge/1559455761_51972775_1184456380.mp4 ../version-sample.git-sim/git-sim_media/version-sample/videos/480p15/partial_movie_files/Merge/partial_movie_file_list.txt ../version-sample.git-sim/git-sim_media/version-sample/texts ../version-sample.git-sim/git-sim_media/version-sample/texts/eb86629d54dd331d.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/06ce9cf5e00359e1.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/bae3cfb60178f8cf.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/177c442328e6a07a.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/642cbb1c7323e76e.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/18448f657b077afa.svg ../version-sample.git-sim/git-sim_media/version-sample/texts/d7e7e68bfe087ec3.svg ../version-sample.git-sim/git-sim_media/version-sample/images ../version-sample.git-sim/git-sim_media/version-sample/images/git-sim-merge_03-15-23_14-55-45.png ``` System infos: ```console > cat /etc/system-release Rocky Linux release 8.7 (Green Obsidian) > uname -r 5.15.90.1-microsoft-standard-WSL2 > dnf list --installed ffmpeg cairo pango | cat Installed Packages cairo.x86_64 1.15.12-6.el8 @appstream ffmpeg.x86_64 4.2.8-1.el8 @rpmfusion-free-updates pango.x86_64 1.42.4-8.el8 @appstream > pipx list venvs are in /home/demarteaub/.local/pipx/venvs apps are exposed on your $PATH at /home/demarteaub/.local/bin package git-sim 0.2.7, installed using Python 3.9.13 - git-dummy - git-sim ```
kerem closed this issue 2026-03-02 16:47:46 +03:00
kerem commented 2026-03-02 16:47:47 +03:00
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@bendem commented on GitHub (Mar 15, 2023):

I've tried the exact same thing using a locally built docker image and I'm getting the same behaviour, guessing that means it's not related to my system settings.

Command used to run the image:

podman run \
  --userns=keep-id \
  --rm \
  -e git_sim_media_dir=/out \
  -u $(id -u $USER) \
  -v "$(realpath ../version-sample.git-sim):/out" \
  -v $PWD:/in:ro \
  -w /in \
     github/git-sim -d status
<!-- gh-comment-id:1470088723 --> @bendem commented on GitHub (Mar 15, 2023): I've tried the exact same thing using a locally built docker image and I'm getting the same behaviour, guessing that means it's not related to my system settings. Command used to run the image: ```bash podman run \ --userns=keep-id \ --rm \ -e git_sim_media_dir=/out \ -u $(id -u $USER) \ -v "$(realpath ../version-sample.git-sim):/out" \ -v $PWD:/in:ro \ -w /in \ github/git-sim -d status ```
kerem commented 2026-03-02 16:47:47 +03:00
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@bendem commented on GitHub (Mar 15, 2023):

After some testing, I see that the videos generated are actually single frames, adding --animate fills in the rest of the frames. Would there be a way to not generate them at all (removing the requirement to install ffmpeg if we don't actually plan on generating videos)?

<!-- gh-comment-id:1470282522 --> @bendem commented on GitHub (Mar 15, 2023): After some testing, I see that the videos generated are actually single frames, adding `--animate` fills in the rest of the frames. Would there be a way to not generate them at all (removing the requirement to install ffmpeg if we don't actually plan on generating videos)?
kerem commented 2026-03-02 16:47:47 +03:00
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@initialcommit-io commented on GitHub (Mar 16, 2023):

@bendem I will check but I don't think so, as I believe ffmpeg is a dependency of Manim. Also, the way the tool currently works when the --animate flag is not supplied, like you said it still generates a single frame video like you said, and extracts the frame into an image to produce the final output.

I'll do some research/testing and confirm.

<!-- gh-comment-id:1471065512 --> @initialcommit-io commented on GitHub (Mar 16, 2023): @bendem I will check but I don't think so, as I believe ffmpeg is a dependency of Manim. Also, the way the tool currently works when the --animate flag is not supplied, like you said it still generates a single frame video like you said, and extracts the frame into an image to produce the final output. I'll do some research/testing and confirm.
kerem commented 2026-03-02 16:47:47 +03:00
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@bendem commented on GitHub (Mar 16, 2023):

Interesting, it wasn't clear to me how this worked, that makes sense now. I guess it's to be expected, it would be nice to have still, but it's just that, nice to have.

<!-- gh-comment-id:1471575880 --> @bendem commented on GitHub (Mar 16, 2023): Interesting, it wasn't clear to me how this worked, that makes sense now. I guess it's to be expected, it would be nice to have still, but it's just that, nice to have.
kerem commented 2026-03-02 16:47:47 +03:00
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@initialcommit-io commented on GitHub (Mar 16, 2023):

@bendem After looking into the Manim documentation, I don't think there is a way to use Manim without ffmpeg, as it seems to be required by Manim's core animation engine which is used for both generating video and image output. Closing this, but please let me know if any other questions related to this.

<!-- gh-comment-id:1472106280 --> @initialcommit-io commented on GitHub (Mar 16, 2023): @bendem After looking into the Manim documentation, I don't think there is a way to use Manim without ffmpeg, as it seems to be required by Manim's core animation engine which is used for both generating video and image output. Closing this, but please let me know if any other questions related to this.
kerem commented 2026-03-02 16:47:47 +03:00
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@bendem commented on GitHub (Mar 17, 2023):

Thanks for taking the time to investigate this!

<!-- gh-comment-id:1473364449 --> @bendem commented on GitHub (Mar 17, 2023): Thanks for taking the time to investigate this!
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