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#!/usr/bin/env ruby
def is_include str
str.start_with? '#include'
end
files = ARGV
if files.empty?
default = "src/**/*.[ch]"
puts "no arguments passed, defaulting to #{default}"
files = Dir[default]
end
files.each { |path|
File.open(path, "r+") do |file|
lines = file.readlines
last = nil
grouped = []
lines.each do |line|
if is_include(line) != last
grouped << [line]
last = is_include(line)
else
grouped[-1] << line
end
end
grouped.map do |group|
group.sort! if is_include group[0]
end
grouped = grouped.flatten
next if grouped == lines
puts path
file.truncate(0)
file.seek(0)
file.write grouped.join
end
}
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