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#!/bin/sh

# automatically configured by git-annex
git annex pre-commit .

# check grammar of staged Markdown files
check_grammar() {
    # get list of staged Markdown files (added or modified)
    staged_files=$(git diff --cached --name-only --diff-filter=AM | grep '\.md$')

    [ -z "$staged_files" ] && return 0

    printf "Checking grammar of staged files.\n"
    language_tool_python --picky $staged_files

    printf "Proceed with commit? (y/n): "
    read yn < /dev/tty

    [ "$yn" == "${yn#[Yy]}" ] && return 1

    return 0
}

# run grammar check
check_grammar

if [ $? -ne 0 ]; then
    printf "Aborted.\n"
    exit 1
fi