The prefetch method may be overridden, but this is not necessary. This default implementation does nothing, which is suitable for sets where looking up a specification is cheap (such as installed gems).
When overridden, the prefetch method should look up specifications matching reqs.
Make sure the trust directory exists. If it does exist, make sure it’s actually a directory. If not, then create it with the appropriate permissions.
@param [Object] requirement we wish to check @param [Array] possible_binding_requirements array of requirements @param [Array] possibilities array of possibilities the requirements will be used to filter @return [Boolean] whether or not the given requirement is required to filter
out all elements of the array of possibilities.
@param [Object] requirement the proposed requirement @param [Object] activated @return [Array] possibility set containing only the locked requirement, if any
If the stream begins with a BOM (byte order marker), consumes the BOM and sets the external encoding accordingly; returns the result encoding if found, or nil otherwise:
File.write('t.tmp', "\u{FEFF}abc") io = File.open('t.tmp', 'rb') io.set_encoding_by_bom # => #<Encoding:UTF-8> io.close File.write('t.tmp', 'abc') io = File.open('t.tmp', 'rb') io.set_encoding_by_bom # => nil io.close
Raises an exception if the stream is not binmode or its encoding has already been set.
Returns the last win32 socket Error of the current executing Thread or nil if none
Sets the last win32 socket Error of the current executing Thread to error
The index to insert activated gem paths into the $LOAD_PATH. The activated gem’s paths are inserted before site lib directory by default.
If the SOURCE_DATE_EPOCH environment variable is set, returns it’s value. Otherwise, returns the time that Gem.source_date_epoch_string was first called in the same format as SOURCE_DATE_EPOCH.
NOTE(@duckinator): The implementation is a tad weird because we want to:
1. Make builds reproducible by default, by having this function always return the same result during a given run. 2. Allow changing ENV['SOURCE_DATE_EPOCH'] at runtime, since multiple tests that set this variable will be run in a single process.
If you simplify this function and a lot of tests fail, that is likely due to #2 above.
Details on SOURCE_DATE_EPOCH: reproducible-builds.org/specs/source-date-epoch/
@!visibility private Enumerates each action in the log in reverse order @yield [Action]
@return [Set<Vertex>] the vertices of {#graph} where ‘self` is an
{#ancestor?}
@param [Set<Vertex>] vertices the set to add the successors to @return [Set<Vertex>] the vertices of {#graph} where ‘self` is an
{#ancestor?}
Creates a State object from opts, which ought to be Hash to create a new State instance configured by opts, something else to create an unconfigured instance. If opts is a State object, it is just returned.
Initializes this object from orig if it can be duplicated/cloned and returns it.
This integer returns the maximum level of data structure nesting in the generated JSON, max_nesting = 0 if no maximum is checked.
This sets the maximum level of data structure nesting in the generated JSON to the integer depth, max_nesting = 0 if no maximum should be checked.
Returns true, if only ASCII characters should be generated. Otherwise returns false.
Initializes a copy of a {DependencyGraph}, ensuring that all {#vertices} are properly copied. @param [DependencyGraph] other the graph to copy.