openscad-png-by-commit

.gitignore

.DS_Store
*.png
*.gif

animate.sh

#!/bin/bash

# USAGE:
# ./animate.sh SLUG FRAMERATE
# ./animate.sh development 3

{

set -e # stop script on error

slug="$1"
framerate="$2"

convert *.png -set delay 1x$framerate "$slug.gif"

gifsicle -O3  --colors 256 < "$slug.gif" > "$slug-256.gif"
gifsicle -O3 --colors 128 < "$slug.gif" > "$slug-128.gif"
gifsicle -O3 --colors 64 < "$slug.gif" > "$slug-064.gif"
gifsicle -O3 --colors 32 < "$slug.gif" > "$slug-032.gif"
gifsicle -O3 --colors 16 < "$slug.gif" > "$slug-016.gif"
gifsicle -O3 --colors 8 < "$slug.gif" > "$slug-008.gif"

}

openscad-png-by-commit.sh

#!/bin/bash

{

set -e # stop script on error

openscad="/Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD"
output_dir="$PWD"
input_dir="$HOME/buttonpusher"

pushd "$input_dir" > /dev/null || exit

function cleanup() {
    git checkout master --quiet
}

trap cleanup EXIT

for hash in $(git log master --pretty="format:%h" -- "*.scad"); do
    previous_filename="$filename"

    timestamp=$(git show $hash --quiet --pretty="format:%ct")
    message=$(git show $hash --quiet --pretty="format:%f")
    filename="$timestamp-$hash-$message.png"

    git checkout "$hash" --quiet

    # buttonpusher.scad or mount.scad, in that order
    input_file=$(find . -name mount.scad -o -name buttonpusher.scad | sort | head -n1)

    echo "$input_file -> $filename"

    $openscad "$input_file" -o "$output_dir/$filename" \
        --viewall \
        --imgsize=1920,1080 \
        --colorscheme DeepOcean \
        --view=edges \
        --quiet

    if [ -f "$output_dir/$previous_filename" ]; then
        if [ -z "$(diff "$output_dir/$previous_filename" "$output_dir/$filename")" ]; then
            rm "$output_dir/$previous_filename"
        fi
    fi
done

cleanup

popd > /dev/null || exit

}