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discover-repos.rb
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discover-repos.rb
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#!/usr/bin/env ruby
# frozen_string_literal: true
# The MIT License (MIT)
#
# Copyright (c) 2021-2024 Yegor Bugayenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
$stdout.sync = true
require 'fileutils'
require 'slop'
require 'octokit'
max = 1000
opts = Slop.parse do |o|
o.string '--token', 'GitHub access token', default: ''
o.boolean '--dry', 'Make no round-trips to GitHub API (for testing)', default: false
o.integer '--total', 'Total number of repos to take from GitHub', required: true
o.integer '--pause', 'How many seconds to sleep between API calls', default: 10
o.integer '--page-size', 'Number of repos to fetch in one API call', default: 100
o.integer '--min-stars', 'Minimum GitHub stars in each repo', default: max
o.integer '--max-stars', 'Maximum GitHub stars in each repo', default: 100_000
o.integer '--min-size', 'Minimum size of GitHub repo, in Kb', default: 100
o.string '--csv', 'The file name to save the list to', required: true
o.string '--tex', 'The file name to save LaTeX summary of the operation', required: true
o.on '--help' do
puts o
exit
end
end
raise 'Can only retrieve up to 1000 repos' if opts[:total] > max
size = [opts[:page_size], opts[:total]].min
github = Octokit::Client.new
unless opts[:token].empty?
github = Octokit::Client.new(access_token: opts[:token])
puts 'Accessing GitHub with personal access token!'
end
found = {}
page = 0
query = [
"stars:#{opts['min-stars']}..#{opts['max-stars']}",
"size:>=#{opts['min-size']}",
'language:java',
'is:public',
'mirror:false',
'archived:false',
'NOT',
'android'
].join(' ')
loop do
if page * size > max
puts "Can't go to page ##{page}, since it will be over #{max}"
break
end
json = if opts[:dry]
{ items: page > 100 ? [] : Array.new(size) { { full_name: "foo/#{Random.hex(5)}", created_at: Time.now } } }
else
github.search_repositories(query, per_page: size, page: page)
end
json[:items].each do |i|
found[i[:full_name]] = {
full_name: i[:full_name],
default_branch: i[:default_branch],
stars: i[:stargazers_count],
forks: i[:forks_count],
created_at: i[:created_at].iso8601,
size: i[:size],
open_issues_count: i[:open_issues_count],
description: i[:description],
topics: i[:topics]
}
puts "Found #{i[:full_name].inspect} GitHub repo ##{found.count} \
(#{i[:forks_count]} forks, #{i[:stargazers_count]} stars)"
end
puts "Found #{json[:items].count} repositories in page ##{page}"
break if found.count >= opts[:total]
puts "Let's sleep for #{opts[:pause]} seconds to cool off GitHub API \
(already found #{found.count} repos, need #{opts[:total]})..."
sleep opts[:pause]
page += 1
end
puts "Found #{found.count} total repositories in GitHub"
if found.count > opts[:total]
found = found.first(opts[:total]).to_h
puts "We will use only the first #{opts[:total]} repositories"
end
FileUtils.mkdir_p(File.dirname(opts[:tex]))
File.write(
opts[:tex],
[
'The following search criteria have been used:',
'\begin{enumerate}',
"\\item At least #{opts['min-stars']} stars,",
"\\item At most #{opts['max-stars']} stars,",
'and',
"\\item At least #{opts['min-size']} Kb size of Git repo.",
'\end{enumerate}',
'The exact query string for',
' GitHub API\footnote{\url{https://docs.github.com/en/rest}}',
' was the following:',
'\begin{ffcode}',
query.gsub(' ', "\n"),
'\end{ffcode}'
].join("\n")
)
path = File.expand_path(opts[:csv])
FileUtils.mkdir_p(File.dirname(path))
lines = [found.first[1].keys.join(',')] + found.values.map { |m| m.values.join(',') }
lines << ''
File.write(path, lines.join("\n"))
puts "The list of #{found.count} repos saved into #{path}"