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list-grammars
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list-grammars
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#!/usr/bin/env ruby
require "bundler/setup"
require "linguist"
require "json"
require "yaml"
class GrammarList
ROOT = File.expand_path "../../", __FILE__
def initialize
@submodules = load_submodules()
@sources = load_sources()
@language_names = load_languages()
end
# Load .gitmodules
def load_submodules
submodules = {}
submodule_file = File.read("#{ROOT}/.gitmodules")
pattern = /^\[submodule\s*"([^"]+)"\]$\n((?:^(?!\[).+(?:\n|$))+)/is
submodule_file.scan(pattern) do |id, attr|
submod = {}
submod[:path] = $1 if attr =~ /^\s*path\s*=\s*(.+)$/
submod[:url] = $1 if attr =~ /^\s*url\s*=\s*(.+)$/
submod[:url].gsub!(/\.git$/, "")
submod[:short] = shorten(submod[:url])
submodules["#{id}"] = submod
end
submodules
end
# Grab the name of each language, sorted case-insensitively
def load_languages
Linguist::Language.all.map(&:name).sort do |a, b|
a.downcase() <=> b.downcase()
end
end
# Load grammars.yml
def load_sources
sources = {}
grammars = YAML.load_file("#{ROOT}/grammars.yml")
grammars.each do |path, scopes|
scopes.each { |scope| sources[scope] = path }
end
sources
end
# Shorten a repository URL
def shorten(url)
if url =~ /^https?:\/\/(?:www\.)?github\.com\/([^\/]+\/[^\/]+)/i
$1
elsif url =~ /^https?:\/\/(?:www\.)?(bitbucket|gitlab)\.(?:com|org)\/([^\/]+\/[^\/]+)/i
"#{$1.downcase()}:#{$2}"
else
url.replace(/^https?:\/\/(?:www\.)?/i, "")
end
end
# Markdown: Generate grammar list
def to_markdown
markdown = ""
@language_names.each do |item|
lang = Linguist::Language["#{item}"]
scope = lang.tm_scope
next if scope == "none"
path = @sources[scope] || scope
case path
when "https://bitbucket.org/Clams/sublimesystemverilog/get/default.tar.gz"
short_url = "bitbucket:Clams/sublimesystemverilog"
long_url = "https://bitbucket.org/Clams/sublimesystemverilog"
when "https://svn.edgewall.org/repos/genshi/contrib/textmate/Genshi.tmbundle/Syntaxes/Markup%20Template%20%28XML%29.tmLanguage"
short_url = "genshi.edgewall.org/query"
long_url = "https://genshi.edgewall.org/query"
when "vendor/grammars/oz-tmbundle/Syntaxes/Oz.tmLanguage"
short_url = "eregon/oz-tmbundle"
long_url = "https://github.com/eregon/oz-tmbundle"
else
submodule = @submodules[(@sources[scope] || scope).chomp("/")]
next unless submodule
short_url = submodule[:short]
long_url = submodule[:url]
end
item = item.gsub("*", "\\*")
markdown += "- **#{item}:** [#{short_url}](#{long_url})\n"
end
markdown
end
# Update the file displaying the reader-friendly list of grammar repos
def update_readme
readme = "#{ROOT}/vendor/README.md"
preamble = File.read(readme).match(/\A.+?<!--.+?-->\n/ms)
list = self.to_markdown
File.write(readme, preamble.to_s + list)
end
end
list = GrammarList.new
if ARGV.include? "--print"
puts list.to_markdown
else
list.update_readme
end