Class: Dependabot::GitMetadataFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/dependabot/git_metadata_fetcher.rb

Constant Summary collapse

KNOWN_HOSTS = 
/github\.com|bitbucket\.org|gitlab.com/i

Instance Method Summary collapse

Constructor Details

#initialize(url:, credentials:) ⇒ GitMetadataFetcher

Returns a new instance of GitMetadataFetcher.



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 12

def initialize(url:, credentials:)
  @url = url
  @credentials = credentials
end

Instance Method Details

#head_commit_for_ref(ref) ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 47

def head_commit_for_ref(ref)
  if ref == "HEAD"
    # Remove the opening clause of the upload pack as this isn't always
    # followed by a line break. When it isn't (e.g., with Bitbucket) it
    # causes problems for our `sha_for_update_pack_line` logic. The format
    # of this opening clause is documented at
    # https://git-scm.com/docs/http-protocol#_smart_server_response
    line = upload_pack.gsub(/^[0-9a-f]{4}# service=git-upload-pack/, "")
                      .lines.find { |l| l.include?(" HEAD") }
    return sha_for_update_pack_line(line) if line
  end

  refs_for_upload_pack
    .find { |r| r.name == ref }
    &.commit_sha
end

#head_commit_for_ref_sha(ref) ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 64

def head_commit_for_ref_sha(ref)
  refs_for_upload_pack
    .find { |r| r.ref_sha == ref }
    &.commit_sha
end

#ref_names ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 43

def ref_names
  refs_for_upload_pack.map(&:name)
end

#refs_for_upload_pack ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 39

def refs_for_upload_pack
  @refs_for_upload_pack ||= parse_refs_for_upload_pack
end

#tags ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 23

def tags
  return [] unless upload_pack

  @tags ||= tags_for_upload_pack.map do |ref|
    OpenStruct.new(
      name: ref.name,
      tag_sha: ref.ref_sha,
      commit_sha: ref.commit_sha
    )
  end
end

#tags_for_upload_pack ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 35

def tags_for_upload_pack
  @tags_for_upload_pack ||= refs_for_upload_pack.select { |ref| ref.ref_type == :tag }
end

#upload_pack ⇒ Object 



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# File 'lib/dependabot/git_metadata_fetcher.rb', line 17

def upload_pack
  @upload_pack ||= fetch_upload_pack_for(url)
rescue Octokit::ClientError
  raise Dependabot::GitDependenciesNotReachable, [url]
end