class Dependabot::GoModules::ReplaceStubber
Given a go.mod file, find all `replace` directives pointing to a path on the local filesystem outside of the current checkout, and return a hash mapping the original path to a hash of the path.
This lets us substitute all parts of the go.mod that are dependent on the layout of the filesystem with a structure we can reproduce (i.e. no paths such as ../../../foo), run the Go tooling, then reverse the process afterwards.
Public Class Methods
new(repo_contents_path)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 14 def initialize(repo_contents_path) @repo_contents_path = repo_contents_path end
Public Instance Methods
stub_paths(manifest, directory)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 18 def stub_paths(manifest, directory) (manifest["Replace"] || []). map { |r| r["New"]["Path"] }. compact. select { |p| stub_replace_path?(p, directory) }. map { |p| [p, "./" + Digest::SHA2.hexdigest(p)] }. to_h end
Private Instance Methods
absolute_path?(path)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 41 def absolute_path?(path) path.start_with?("/") end
module_pathname(directory)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 50 def module_pathname(directory) @module_pathname ||= Pathname.new(@repo_contents_path).join(directory.sub(%r{^/}, "")) end
relative_replacement_path?(path)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 45 def relative_replacement_path?(path) # https://golang.org/ref/mod#go-mod-file-replace path.start_with?("./") || path.start_with?("../") end
stub_replace_path?(path, directory)
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# File lib/dependabot/go_modules/replace_stubber.rb, line 29 def stub_replace_path?(path, directory) return true if absolute_path?(path) return false unless relative_replacement_path?(path) return true if @repo_contents_path.nil? resolved_path = module_pathname(directory).join(path).realpath inside_repo_contents_path = resolved_path.to_s.start_with?(@repo_contents_path.to_s) !inside_repo_contents_path rescue Errno::ENOENT true end