Check whether PACKAGE's source code is archived on Software Heritage. If it's not, and if its source code is a VCS snapshot, then send a "save" request to Software Heritage.

Software Heritage imposes limits on the request rate per client IP address. This checker prints a notice and stops doing anything once that limit has been reached.

Invalidate the memoization cache of PROC.

Return a memoizing version of PROC.

This is a generic version of 'mlambda' what works regardless of the arity of 'proc'. It is more expensive since the argument list is always allocated, and the result is returned via (apply values results).

Return the closure of MODULES, determined by looking at live (loaded) module information. MODULES and the result are a list of Guile module names. Only modules that match SELECT? are considered.

Return the module name (a list of symbols) corresponding to FILE.

Return true if NAME (a list of symbols) denotes a Guix module.

Return the file name for MODULE.

Return the closure of MODULES by reading 'define-module' forms in their source code. MODULES and the result are a list of Guile module names. Only modules that match SELECT? are considered.

Return the modules used by MODULE by looking at its source code.

Lift PROC, a procedure that accepts an arbitrary number of arguments, to MONAD---i.e., return a monadic function in MONAD.