Return all files in this gem that match for glob
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Checks the permissions of the credentials file. If they are not 0600 an error message is displayed and RubyGems aborts.
Reads time of last update check from state file
Writes time of last update check to state file
Performs various checks before installing the gem such as the install repository is writable and its directories exist, required Ruby and rubygems versions are met and that dependencies are installed.
Version and dependency checks are skipped if this install is forced.
The dependent check will be skipped if the install is ignoring dependencies.
Writes the .gem file to the cache directory
Given a name and requirement, downloads this gem into cache and returns the filename. Returns nil if the gem cannot be located.