Apply Ruby's keyword argument and hash value omission in a git repo

ruby_value_omission.sh

# https://gist.github.com/wteuber/c435bafcd79beb91b65e354fc907efe8
# macOS/zsh

# Apply Ruby's keyword argument and hash value omission in a git repo

# First occurence only
git grep -lP '\b([A-Za-z0-9_]+): \1\b[,\)]' -- '*.rb' | head -1 | xargs -I {} sed -i -E 's/\b([A-Za-z0-9_]+): \1\b([,\)])/\1:\2/g' "{}"

# Apply for "<var>: <var>," and "<var>: <var>)"
git grep -lP '\b([A-Za-z0-9_]+): \1\b[,\)]' -- '*.rb' | xargs -I {} sed -i -E 's/\b([A-Za-z0-9_]+): \1\b([,\)])/\1:\2/g' "{}"

# Apply for "<var>: <var> }"
git grep -lP '\b([A-Za-z0-9_]+): \1\b \}' -- '*.rb' | xargs -I {} sed -i -E 's/\b([A-Za-z0-9_]+): \1\b \}/\1: }/g' "{}"

# List other occurences of "<var>: <var>" except "<var>: <var>.", "<var>: <var>(", "<var>: <var>?", "<var>: <var>&"
git grep -nP '\b([A-Za-z0-9_]+): \1\b[^.(?&]' -- '*.rb'

Prefer using https://docs.rubocop.org/rubocop/cops_style.html#enforcedshorthandsyntax_-always-stylehashsyntax instead.