Class: CDNGet::Unpkg

Inherits:
Base
  • Object
show all
Defined in:
lib/cdnget.rb

Constant Summary collapse

CODE = 
"unpkg"
SITE_URL = 
"https://unpkg.com/"
API_URL =

API_URL = “www.npmjs.com”

"https://api.npms.io/v2"
LIBRARY_REXP = 
/\A([-.\w]+|\@[-\w]+\/[-.\w]+)\z/

Instance Attribute Summary

Attributes inherited from Base

#debug_mode

Instance Method Summary collapse

Methods inherited from Base

#download, inherited, #initialize

Constructor Details

This class inherits a constructor from CDNGet::Base

Instance Method Details

#find(library) ⇒ Object 



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# File 'lib/cdnget.rb', line 468

def find(library)
  validate(library, nil)
  json = fetch("#{API_URL}/package/#{library.sub('/', '%2f')}", library)
  jdata = JSON.load(json)
  _debug_print(jdata)
  dict = jdata["collected"]["metadata"]
  versions = [dict["version"]]
  #
  url = File.join(SITE_URL, "/browse/#{library}/")
  html = fetch(url, library)
  _debug_print(html)
  if html =~ /<script>window.__DATA__\s*=\s*(.*?)<\/script>/m
    jdata2 = JSON.load($1)
    versions = jdata2["availableVersions"].reverse()
  end
  #
  return {
    name:      dict["name"],
    desc:      dict["description"],
    tags:      (dict["keywords"] || []).join(", "),
    site:      dict["links"] ? dict["links"]["homepage"] : dict["links"]["npm"],
    info:      File.join(SITE_URL, "/browse/#{library}/"),
    versions:  versions,
    license:   dict["license"],
  }
end

#get(library, version) ⇒ Object 



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# File 'lib/cdnget.rb', line 495

def get(library, version)
  validate(library, version)
  dict = find(library)
  dict.delete(:versions)
  #
  url = "#{SITE_URL}#{library}@#{version}/?meta"
  begin
    json = fetch(url, library)
  rescue CommandError
    raise CommandError.new("#{library}@#{version}: Version not found.")
  end
  jdata = JSON.load(json)
  _debug_print(jdata)
  pr = proc do |jdata, files|
    jdata['files'].each do |d|
      d['type'] == "directory" ? pr.call(d, files) \
                               : (files << d['path'])
    end if jdata['files']
    files
  end
  files = pr.call(jdata, [])
  #files = files.sort_by {|s| s.downcase }
  baseurl = File.join(SITE_URL, "/#{library}@#{version}")
  #
  dict.update({
    name:     library,
    version:  version,
    info:     File.join(SITE_URL, "/browse/#{library}@#{version}/"),
    npmpkg:   npmpkg_url(library, version),
    urls:     files.collect {|x| baseurl+x },
    files:    files,
    baseurl:  baseurl,
    #default:  jdata["default"],
    destdir:  "#{library}@#{version}",
    skipfile: /\.DS_Store\z/,  # downloading '.DS_Store' from UNPKG results in 403
  })
  return dict
end

#latest_version(library) ⇒ Object 



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# File 'lib/cdnget.rb', line 534

def latest_version(library)
  validate(library, nil)
  version = nil
  url = File.join(SITE_URL, "/browse/#{library}/")
  uri = URI.parse(url)
  HttpConnection.open(URI.parse(SITE_URL)) do |http|
    resp = http.request('HEAD', "/browse/#{library}/")
    if resp.code == "302"    # 302 Found
      location = resp.header['Location']
      location =~ /@([^@\/]+)\/\z/
      version = $1
    end
  end
  version ||= super(library)
  return version
end

#list ⇒ Object 



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# File 'lib/cdnget.rb', line 449

def list()
  return nil    # nil means that this CDN can't list libraries without pattern
end

#search(pattern) ⇒ Object 



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# File 'lib/cdnget.rb', line 453

def search(pattern)
  #json = fetch("#{API_URL}/search?q=#{pattern}")
  json = fetch("#{API_URL}/search?q=#{pattern}&size=250")
  jdata = JSON.load(json)
  _debug_print(jdata)
  #arr = jdata["objects"]   # www.npmjs.com
  arr = jdata["results"]    # api.npms.io
  return arr.select {|dict|
    File.fnmatch(pattern, dict["package"]["name"], File::FNM_CASEFOLD)
  }.collect {|dict|
    d = dict["package"]
    {name: d["name"], desc: d["description"], version: d["version"]}
  }
end