parse ini files with pure bash. Read more about it here: eli.gladman.cc/blog/2020/06/23/parsing-ini-file-with-bash.html

parse_ini_example.sh

parse_ini() {
    # Usage: parse_ini "path/to/file"
    #        parse_ini "path/to/file" false

    # By default variables will be evaluated. Disable this by passing in "false"

    local regex_contains_variable="^([a-zA-Z0-9_]{1,})([[:space:]]\=[[:space:]])(.*)$"
    local regex_contains_wrapped_quotes="^([\"\'])(.*)([\"\'])$"
    local regex_contains_inside_quotes="^([\"])(.*)([\"])(.*)([\"])$"

    local multi_line=""
    while IFS='' read -r line || [[ -n "$line" ]]; do
        # Strip trailing comments from line
        if [[ "$line" == *[[:space:]]\#* ]]; then
            line="${line%%\#*}"
        fi

        case "$line" in
            \#*|\;*)
                # Ignore commented line
                continue
                ;;
            \[*|*\])
                # There is no explicit "end of section" delimiter; sections end at
                # the next section declaration
                section="${line##\[}"     # Strip left bracket
                section="${section%%\]}_" # Strip right bracket
                continue
                ;;
            *\\)
                multi_line+="${line%%\\}\n"
                ;;
            *)
                if [[ -n "$multi_line" ]]; then
                    multi_line+="$line"
                    line="$multi_line"
                    multi_line=""
                fi
                ;;
        esac

        if [[ ! "$line" =~ $regex_contains_variable ]] || [[ -n "$multi_line" ]]; then
            continue
        fi

        local name val
        val="${line/*\= }"            # Everything after the equals sign
        name="${section}${line/$val}" # Invert match. This way we know we've captured everything
        name="${name%% *}"            # Remove trailing whitespace and equals sign

        # Wrap 'val' in quotes if they're missing
        if [[ ! "$val" =~ $regex_contains_wrapped_quotes ]]; then
            val="\"$val\""
        fi

        if [[ "$val" =~ $regex_contains_inside_quotes ]]; then
            local tmp
            tmp="${val##\"}"      # Strip left quote
            tmp="${tmp%%\"}"      # Strip right quote
            tmp="${tmp//\"/\\\"}" # Escape all quotes
            val="\"$tmp\""        # Add back the wrapped quotes
            unset tmp
        fi

        local declaration
        declaration="$(printf '%b\n' "$name=$val")"

        [[ "$2" == "false" ]] || eval "$declaration"
        printf '%s\n' "$declaration"
    done < "$1"

}

parse_ini "$@"

MIT Licensed.