Class: GitHubGitDownloadStrategy

Inherits:
GitDownloadStrategy show all
Defined in:
download_strategy.rb

Overview

Strategy for downloading a Git repository from GitHub.

Constant Summary

Constants inherited from VCSDownloadStrategy

VCSDownloadStrategy::REF_TYPES

Instance Attribute Summary

Attributes inherited from VCSDownloadStrategy

#last_commit

Attributes inherited from AbstractDownloadStrategy

#cache, #cached_location, #source_modified_time, #url

Instance Method Summary collapse

Methods inherited from GitDownloadStrategy

#last_commit, #source_modified_time

Methods inherited from VCSDownloadStrategy

#fetch, #fetch_last_commit, #head?

Methods inherited from AbstractDownloadStrategy

#basename, #clear_cache, #fetch, #quiet?, #shutup!, #stage

Methods included from Context

current, current=, #debug?, #quiet?, #verbose?, #with_context

Constructor Details

#initialize(url, name, version, **meta) ⇒ GitHubGitDownloadStrategy

Returns a new instance of GitHubGitDownloadStrategy.



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# File 'download_strategy.rb', line 1022

def initialize(url, name, version, **meta)
  super

  return unless %r{^https?://github\.com/(?<user>[^/]+)/(?<repo>[^/]+)\.git$} =~ @url

  @user = user
  @repo = repo
end

Instance Method Details

#commit_outdated?(commit) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'download_strategy.rb', line 1061

def commit_outdated?(commit)
  @last_commit ||= github_last_commit
  if @last_commit
    return true unless commit
    return true unless @last_commit.start_with?(commit)

    if multiple_short_commits_exist?(commit)
      true
    else
      version.update_commit(commit)
      false
    end
  else
    super
  end
end

#default_branch ⇒ String

Returns:



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# File 'download_strategy.rb', line 1088

def default_branch
  return @default_branch if defined?(@default_branch)

  command! "git",
           args:  ["remote", "set-head", "origin", "--auto"],
           chdir: cached_location

  result = command! "git",
                    args:  ["symbolic-ref", "refs/remotes/origin/HEAD"],
                    chdir: cached_location

  @default_branch = result.stdout[%r{^refs/remotes/origin/(.*)$}, 1]
end

#default_refspec ⇒ String

Returns:



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# File 'download_strategy.rb', line 1079

def default_refspec
  if default_branch
    "+refs/heads/#{default_branch}:refs/remotes/origin/#{default_branch}"
  else
    super
  end
end

#github_last_commit ⇒ Object 



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# File 'download_strategy.rb', line 1031

def github_last_commit
  # TODO: move to Utils::GitHub
  return if Homebrew::EnvConfig.no_github_api?

  output, _, status = curl_output(
    "--silent", "--head", "--location",
    "-H", "Accept: application/vnd.github.sha",
    "https://api.github.com/repos/#{@user}/#{@repo}/commits/#{@ref}"
  )

  return unless status.success?

  commit = output[/^ETag: "(\h+)"/, 1]
  version.update_commit(commit) if commit
  commit
end

#multiple_short_commits_exist?(commit) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'download_strategy.rb', line 1048

def multiple_short_commits_exist?(commit)
  # TODO: move to Utils::GitHub
  return if Homebrew::EnvConfig.no_github_api?

  output, _, status = curl_output(
    "--silent", "--head", "--location",
    "-H", "Accept: application/vnd.github.sha",
    "https://api.github.com/repos/#{@user}/#{@repo}/commits/#{commit}"
  )

  !(status.success? && output && output[/^Status: (200)/, 1] == "200")
end