Tells the download reporter that the file_name is being fetched. The other arguments are ignored.
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/
Returns a new lazy enumerator with the concatenated results of running block once for every element in the lazy enumerator.
["foo", "bar"].lazy.flat_map {|i| i.each_char.lazy}.force #=> ["f", "o", "o", "b", "a", "r"]
A value x returned by block is decomposed if either of the following conditions is true:
x responds to both each and force, which means that x is a lazy enumerator.
x is an array or responds to to_ary.
Otherwise, x is contained as-is in the return value.
[{a:1}, {b:2}].lazy.flat_map {|i| i}.force
#=> [{:a=>1}, {:b=>2}]
Reads time of last update check from state file
Writes time of last update check to state file
True if the gems in the system satisfy dependency.
Prefix and suffix the program filename the same as ruby.
Extracts S3 configuration for S3 bucket
Expire memoized instance variables that can incorrectly generate, replace or miss files due changes in certain attributes used to compute them.