53 lines
1.4 KiB
Ruby
Executable File
53 lines
1.4 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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fix = ARGV.shift if ARGV.first == "--fix"
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files = Array(ARGV.shift || Dir.glob("./**/*.md"))
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files.each do |file|
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content = File.read(file)
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# First, scan for all references ([#]: at beginning of line)
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# and look for duplicates
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refs = content.scan(/^\[\d+\]:/)
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dups = refs.combination(2).filter_map { |i, j| i if i == j }
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# If duplicate refs detected, this won't work, so bail out
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if dups.any?
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warn "Duplicate refs detected in #{file} (#{dups * ", "})"
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exit 1
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end
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idx = 0
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code_block = false
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cache = {}
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# Find all numbered links (in text + references) + code delimeters
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# (for fenced code blocks, "`" suffices because "```" is an odd number)
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updated = content.gsub(/\[\d+\]|`/) do |token|
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case token
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when "`"
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# We don't want to do substitution inside code blocks
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# (where `[#]` sometimes occurs) but we do want to toggle
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# whether or not we're in a code block
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code_block = !code_block
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token
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else
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# If we're in a code block, just return the token
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# Otherwise, check if the reference has already been assigned
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# - If so, return the cached value
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# - If not, bump the index, cache the value, and return it
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code_block ? token : cache[token] ||= "[#{idx += 1}]"
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end
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end
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if content != updated
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warn "Links in #{file} are not in order"
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if fix
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File.write(file, updated)
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else
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exit 1
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end
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end
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end
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