Module: Bundler::Codegraph::RuntimeDir

Defined in:

lib/bundler/codegraph/runtime_dir.rb

Overview

A private directory for the plugin's runtime files, one per user under Dir.tmpdir.

On Linux Dir.tmpdir is the shared /tmp, where a fixed file name lets another user create it first — and then either hold the lock forever or leave it unopenable. The directory is created 0700 and only trusted when it is a real directory (not a symlink), owned by the current user and closed to everyone else; callers degrade gracefully when it is not.

Class Method Summary

• .candidate ⇒ String

  Where the directory lives, trusted or not.

• .path ⇒ String^?

  The directory, nil when it cannot be trusted.

Class Method Details

.candidate ⇒ String

Returns where the directory lives, trusted or not.

Returns:

• (String) —

  where the directory lives, trusted or not

# File 'lib/bundler/codegraph/runtime_dir.rb', line 19

def self.candidate
  File.join(Dir.tmpdir, "bundler-codegraph-#{Process.uid}")
end

.path ⇒ String^?

Returns the directory, nil when it cannot be trusted.

Returns:

• (String, nil) —

  the directory, nil when it cannot be trusted

# File 'lib/bundler/codegraph/runtime_dir.rb', line 24

def self.path
  dir = candidate
  create(dir)
  trusted?(dir) ? dir : nil
rescue SystemCallError
  nil
end