Return the u8 list representing a signature header containing the HEADER-SHA256 (a string) and the PAYLOAD-SIZE, which is the combined size of the header and compressed payload.

Align and append the various u8 list components together, and return the result as a bytevector.

Return the u8 list corresponding to the Header section. PAYLOAD-DIGEST is the SHA256 checksum string of the compressed payload. PAYLOAD-DIRECTORY is the directory containing the payload files. PAYLOAD-COMPRESSOR is the name of the compressor used to compress the CPIO payload, such as "none", "gz", "xz" or "zstd".

Predicate to check if FILE-NAME is a known File Hierarchy Standard (FHS) directory.

Given OPTS, the result of 'args-fold', return a list of derivations to build and a list of store files to transfer.

manipulate, export, and import normalized archives (nars)

sign or verify signatures on normalized archives (nars)

Return the list of dependents of all of PACKAGES up to distance MAX-DEPTH.

Return a URL under one of the BASE-URLS where a build log for FILE can be found. Return #f if no build log was found.

build packages or derivations without installing them

Given OPTS, an alist as returned by 'args-fold' given '%standard-build-options', set the corresponding build options on STORE.

Register ROOT as an indirect GC root for all of PATHS.

Display on the current output port help about the standard command-line options handled by 'set-build-options-from-command-line', and listed in '%standard-build-options'.