spell-check-md-files.hook

#!/usr/bin/env bash
# Based on a hook from tygertec.com
# Source: https://cloudrkt.com/spellcheck-hook.html
#
# Used to check files with the .md extension (markdown) for spelling errors.
# It will run each .md file through aspell and returns an exit code other than 0 when it matches.
#
# Requirements: 
#   * Bash
#
# To enable this hook, rename this file to "pre-commit".

# Where are the markdown files located?
SEARCH_DIR="content"

# Set some fancy colors to indicate errors and wrongly spelled words.
RED='\033[0;31m'
YELLOW='\033[0;33m'
NC='\033[0m' # No Color

# Start checking the current directory for md files
for file in $(find $SEARCH_DIR -type f -name "*.md");
        # Pass each .md file through aspell.
        do output=$(cat $file | aspell --lang=en list);
        if [[ $? != 0 ]]; then
                echo -e "${RED}Error found in output${NC}, cannot continue." 
                echo -e "Please check manually for aspell -c $file?"
                exit 1
        elif [[ $output ]]; then
                echo -e "-> ${RED}Spelling errors found${NC} <-"
                echo -e "${YELLOW}$output${NC}" |sort -u
                echo "Please check with: aspell -c $file"
                bad="yes"
                good="yes"
        fi
done

# Matched in aspell
if [[ "$bad" == "yes" ]]; then
        exit 1
fi

# No match in aspell
if [[ "$good" == "yes" ]]; then
        echo -e "Spelling check is ${RED}OK${NC}, good to go."
        exit 0
fi