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#!/usr/bin/env ruby
require 'yaml'
def comma_expanson(s)
s.scan(/{[^{]+}|[^{]+/).map { |a| a[0] == "{" ? a : a.split(",", -1) }.reduce([]) do |a, b|
a.size > 0 ?
(b.is_a?(String) ?
a[0..-2] + [a[-1] + b] :
a[0..-2] + [a[-1] + b[0]] + b[1..-1]) :
[b].flatten
end
end
def import_autocommands
cmd = <<~EOF
vim -es -u DEFAULTS -c 'exe("func! Capture() \\n redir => capture \\n silent autocmd filetypedetect BufRead \\n redir END \\n return capture \\n endfunc") | let a = Capture() | put =a | %print | :q!'
EOF
filetypes = Hash.new { |h, k| h[k] = [] }
autocommands = `#{cmd}`
for pattern, cmd in autocommands.scan(/^ ([^ ]+)\s*(.*)\n/)
cmd = cmd.strip
what = {}
if match = cmd.match(/^setf\s+(.*)$/)
what[:ft] = match[1]
elsif match = cmd.match(/^call s:StarSetf\(\'(.*)\'\)$/)
what[:ft] = match[1]
elsif match = cmd.match(/^set filetype=(.*)$/)
what[:ft] = match[1]
end
if what != {}
for p in comma_expanson(pattern.strip)
filetypes[what[:ft].strip] << p
end
end
end
filetypes
end
$with_special_char = /#{[".", ":", "{", "}", "[", "]", ",", "&", "*", "#", "?", "|", "-", "<", ">", "=", "!", "%", "@", "\\"].map { |e| Regexp.escape(e) }.join("|")}/
def print_pattern(p)
if p.match($with_special_char)
p.gsub("'", "\\'")
end
return p
end
def generate_packages_entries(filetypes, comments)
entries = []
current_filetypes = YAML.load_stream(File.read('packages.yaml')).flat_map do |p|
p["filetypes"].map { |a| a["name"] }
end
for ft, patterns in filetypes
if current_filetypes.include?(ft)
next
end
output = {
"name" => ft,
"remote" => "vim/vim:runtime",
"glob" => "**/" + ft + ".vim",
"filetypes" => [{
"name" => ft,
"patterns" => []
}]
}
paths_with_comments = patterns.group_by { |p| (comments[ft] || {})[p] || "" }
for comment, paths in paths_with_comments
output["filetypes"][0]["patterns"] << {
"pattern" => paths.join(","),
}
if comment.strip.size > 0
output["filetypes"][0]["patterns"].last["description"] = comment
end
end
entries << YAML.dump(output)
end
return entries
end
filetypes = import_autocommands
def fix_quotes(a)
a = a.gsub(/\\/) { '\\\\' }
a.scan(/^.*?"(.+?)"\n/m).each { |p| a[p[0]] = p[0].gsub('"') { '\\"'} }
a
end
def get_comments
comments_cmd = <<~'EOF'
awk '/^"/ { comment = $0; next } match($0, "(\\S+)\\s+setf (\\S*)$", a) { print "- filetype: \"" a[2] "\"\n description: \"" substr(comment, 3) "\"\n patterns: \"" a[1] "\"" }' 'tmp/vim/vim/runtime/filetype.vim'
EOF
comments = YAML.load(fix_quotes(`#{comments_cmd}`))
comments.reject! { |c| c["patterns"].strip == "" || c["patterns"].include?('\\') }
result = {}
comments = comments.flat_map do |c|
result[c["filetype"]] ||= {}
for p in comma_expanson(c["patterns"])
result[c["filetype"]][p] = c["description"]
end
end
result
end
comments = get_comments()
autocommands = import_autocommands()
entries = generate_packages_entries(autocommands, comments)
print(entries.join(""))
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