* guix/build/graft.scm (replace-store-references): REPLACEMENT is now
the full string, not just the hash.
(rewrite-directory)[hash-mapping](valid-suffix?): Remove.
(hash+suffix): Rename to...
(hash+rest): ... this. Change to return the whole string as the second
element of the list. Adjust 'match-lambda' expression accordingly;
check whether the string length of the origin and replacement match.
* tests/grafts.scm ("graft-derivation, grafted item uses a different
name"): New test.
* doc/guix.texi (Security Updates): Update sentence on the name/version
restriction.
* guix/build/graft.scm (replace-store-references): Reimplement for
faster grafting. Use binary I/O instead of textual I/O. Replace
'mapping' argument (an alist) with 'replacement-table' (a vhash).
(rewrite-directory): Adapt to mapping argument change in
'replace-store-references'. Remove 'with-fluids' that previously set
'%default-port-encoding' to #f, since we now use binary I/O.
(define-inline, hash-length): New macros.
(nix-base32-char?): New variable.
Fixes <http://bugs.gnu.org/23132>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/build/graft.scm (rename-matching-files): New procedure.
(rewrite-directory): Use it.
* tests/grafts.scm ("graft-derivation, renaming"): New test.
* guix/build/graft.scm (rewrite-directory)[rewrite-leaf]: Change to take
a single parameter. Add call to 'lstat'. Factorize result of
'destination'.
Use 'find-files' instead of 'file-system-fold'.
* guix/derivations.scm (graft-derivation): New procedure.
* guix/build/graft.scm: New file.
* Makefile.am (MODULES): Add it.
* tests/derivations.scm ("graft-derivation"): New test.
Ludovic Courtès