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require "utils/tty"
module Formatter
module_function
def arrow(string, color: nil)
prefix("==>", string, color)
end
def headline(string, color: nil)
arrow("#{Tty.bold}#{string}#{Tty.reset}", color: color)
end
def identifier(string)
"#{Tty.green}#{string}#{Tty.default}"
end
def success(string, label: nil)
label(label, string, :green)
end
def warning(string, label: nil)
label(label, string, :yellow)
end
def error(string, label: nil)
label(label, string, :red)
end
def url(string)
"#{Tty.underline}#{string}#{Tty.no_underline}"
end
def label(label, string, color)
label = "#{label}:" unless label.nil?
prefix(label, string, color)
end
private_class_method :label
def prefix(prefix, string, color)
if prefix.nil? && color.nil?
string
elsif prefix.nil?
"#{Tty.send(color)}#{string}#{Tty.reset}"
elsif color.nil?
"#{prefix} #{string}"
else
"#{Tty.send(color)}#{prefix}#{Tty.reset} #{string}"
end
end
private_class_method :prefix
def columns(*objects, gap_size: 2)
objects = objects.flatten.map(&:to_s)
fallback = proc do
return objects.join("\n").concat("\n")
end
fallback.call if objects.empty?
fallback.call if respond_to?(:tty?) ? !tty? : !$stdout.tty?
console_width = Tty.width
object_lengths = objects.map { |obj| Tty.strip_ansi(obj).length }
cols = (console_width + gap_size) / (object_lengths.max + gap_size)
fallback.call if cols < 2
rows = (objects.count + cols - 1) / cols
cols = (objects.count + rows - 1) / rows # avoid empty trailing columns
col_width = (console_width + gap_size) / cols - gap_size
gap_string = "".rjust(gap_size)
output = ""
rows.times do |row_index|
item_indices_for_row = row_index.step(objects.size - 1, rows).to_a
first_n = item_indices_for_row[0...-1].map do |index|
objects[index] + "".rjust(col_width - object_lengths[index])
end
# don't add trailing whitespace to last column
last = objects.values_at(item_indices_for_row.last)
output.concat((first_n + last).join(gap_string)).concat("\n")
end
output
end
def pluralize(count, singular, plural = nil, show_count: true)
return (show_count ? "#{count} #{singular}" : singular.to_s) if count == 1
*adjectives, noun = singular.to_s.split(" ")
plural ||= {
"formula" => "formulae",
}.fetch(noun, "#{noun}s")
words = adjectives.push(plural).join(" ")
show_count ? "#{count} #{words}" : words
end
end
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