;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019 Gábor Boskovits <boskovits@gmail.com>
;;; Copyright © 2020 Giacomo Leidi <goodoldpaul@autistici.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages libedit)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages ncurses))

(define-public libedit
  (package
    (name "libedit")
    (version "20191231-3.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "https://thrysoee.dk/editline"
                          "/libedit-" version ".tar.gz"))
      (sha256
       (base32 "0wch48nml28jj6ild889745dsg2agm7mpvrmbl1gi98nw6vjrf6v"))))
    (build-system gnu-build-system)
    (inputs
     (list ncurses))
    (home-page "https://thrysoee.dk/editline/")
    (synopsis "NetBSD Editline library")
    (description
     "This is an autotool- and libtoolized port of the NetBSD Editline
library (libedit).  This Berkeley-style licensed command line editor library
provides generic line editing, history, and tokenization functions, similar to
those found in GNU Readline.")
    (license bsd-3)))

(define-public editline
  (package
    (name "editline")
    (version "1.17.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append
            "https://ftp.troglobit.com/editline/editline-" version ".tar.xz"))
      (sha256
       (base32 "03pw3z6pz590v8xfnjx0yynnzij2sb9xwjbvqvdzsid56crkn8nz"))))
    (build-system gnu-build-system)
    (home-page "https://troglobit.com/projects/editline/")
    (synopsis "Line editing library")
    (description
     "@code{editline} is a small line editing library.  It can be linked into almost
any program to provide command line editing and history functions.  It is call
compatible with the GNU Readline library, but at a fraction of the size,
and as a result fewer features.")
    (license bsd-4)))
f='/guix/commit/nix/libstore/local-store.hh?id=472a0e82a52a3d5d841e1dfad6b13e26082a5750'>daemon: Do not deduplicate files smaller than 8 KiB.</a><span class='msg-avail'>...<span class='msg-tooltip'>Files smaller than 8 KiB typically represent ~70% of the entries in
/gnu/store/.links but only contribute to ~4% of the space savings
afforded by deduplication.

Not considering these files for deduplication speeds up file insertion
in the store and, more importantly, leaves 'removeUnusedLinks' with
fewer entries to traverse, thereby speeding it up proportionally.

Partly fixes &lt;https://issues.guix.gnu.org/24937&gt;.

* config-daemon.ac: Remove symlink hard link check and CAN_LINK_SYMLINK
definition.
* guix/store/deduplication.scm (%deduplication-minimum-size): New
variable.
(deduplicate)[loop]: Do not recurse when FILE's size is below
%DEDUPLICATION-MINIMUM-SIZE.
(dump-port): New procedure.
(dump-file/deduplicate)[hash]: Turn into...
[dump-and-compute-hash]: ... this thunk.
Call 'deduplicate' only when SIZE is greater than
%DEDUPLICATION-MINIMUM-SIZE; otherwise call 'dump-port'.
* nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Drop files where
st.st_size &lt; deduplicationMinSize.
* nix/libstore/local-store.hh (deduplicationMinSize): New declaration.
* nix/libstore/optimise-store.cc (deduplicationMinSize): New variable.
(LocalStore::optimisePath_): Return when PATH is a symlink or smaller
than 'deduplicationMinSize'.
* tests/derivations.scm ("identical files are deduplicated"): Produce
files bigger than %DEDUPLICATION-MINIMUM-SIZE.
* tests/nar.scm ("restore-file-set with directories (signed, valid)"):
Likewise.
* tests/store-deduplication.scm ("deduplicate, below %deduplication-minimum-size"):
New test.
("deduplicate", "deduplicate, ENOSPC"): Produce files bigger than
%DEDUPLICATION-MINIMUM-SIZE.
* tests/store.scm ("substitute, deduplication"): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>