[bug#33600] [PATCH 2/3] Remove most references to hydra.gnu.org.

[Ludovic Courtès]

* Makefile.am (assert-binaries-available): Don't mention hydra.gnu.org
in comment.
* build-aux/check-available-binaries.scm: Likewise.
* build-aux/check-final-inputs-self-contained.scm: Likewise.
* doc/guix.texi (SUBSTITUTE-SERVER): New variable.
Use it throughout instead of "mirror.hydra.gnu.org".
* doc/contributing.texi (Submitting Patches): Likewise.
* gnu/services/base.scm (hydra-key-authorization)
(guix-activation): Remove mentions of "hydra.gnu.org" in comments and
messages.
* gnu/system/install.scm (%installation-services): Likewise.
* guix/scripts/size.scm (guix-size): Likewise.
---
 Makefile.am                                   |  2 +-
 build-aux/check-available-binaries.scm        |  4 +-
 .../check-final-inputs-self-contained.scm     |  2 +-
 doc/contributing.texi                         |  2 +-
 doc/guix.texi                                 | 56 ++++++++++---------
 gnu/services/base.scm                         |  4 +-
 gnu/system/install.scm                        |  2 +-
 guix/scripts/size.scm                         |  2 +-
 8 files changed, 38 insertions(+), 36 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 6803666a57..a7a67e81cf 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -763,7 +763,7 @@ assert-no-store-file-names: $(distdir)/ChangeLog
          exit 1 ;                                                              
\
        fi
 
-# Make sure hydra.gnu.org has the important binaries.
+# Make sure important substitutes are available.
 assert-binaries-available: $(GOBJECTS)
        $(AM_V_at)$(top_builddir)/pre-inst-env "$(GUILE)"                       
\
          "$(top_srcdir)/build-aux/check-available-binaries.scm"
diff --git a/build-aux/check-available-binaries.scm 
b/build-aux/check-available-binaries.scm
index b832d99935..c80db1a37e 100644
--- a/build-aux/check-available-binaries.scm
+++ b/build-aux/check-available-binaries.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <address@hidden>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès 
<address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -17,7 +17,7 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;;
-;;; Check whether important binaries are available at hydra.gnu.org.
+;;; Check whether important binaries are available.
 ;;;
 
 (use-modules (guix store)
diff --git a/build-aux/check-final-inputs-self-contained.scm 
b/build-aux/check-final-inputs-self-contained.scm
index 37dc883d3c..c819086508 100644
--- a/build-aux/check-final-inputs-self-contained.scm
+++ b/build-aux/check-final-inputs-self-contained.scm
@@ -17,7 +17,7 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;;
-;;; Check whether important binaries are available at hydra.gnu.org.
+;;; Check whether important binaries are available.
 ;;;
 
 (use-modules (guix store)
diff --git a/doc/contributing.texi b/doc/contributing.texi
index 7417f28d14..c55eb63382 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -443,7 +443,7 @@ as timestamps or randomly-generated output in the build 
result.
 
 Another option is to use @command{guix challenge} (@pxref{Invoking guix
 challenge}).  You may run it once the package has been committed and
-built by @code{hydra.gnu.org} to check whether it obtains the same
+built by @address@hidden to check whether it obtains the same
 result as you did.  Better yet: Find another machine that can build it
 and run @command{guix publish}.  Since the remote build machine is
 likely different from yours, this can catch non-determinism issues
diff --git a/doc/guix.texi b/doc/guix.texi
index b0aa5aa872..d96c35eace 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -13,6 +13,9 @@
 @set OPENPGP-SIGNING-KEY-ID 3CE464558A84FDC69DB40CFB090B11993D9AEBB5
 @set KEY-SERVER pool.sks-keyservers.net
 
address@hidden The official substitute server used by default.
address@hidden SUBSTITUTE-SERVER ci.guix.info
+
 @copying
 Copyright @copyright{} 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic 
address@hidden
 Copyright @copyright{} 2013, 2014, 2016 Andreas address@hidden
@@ -1274,8 +1277,7 @@ remote procedure call (@pxref{The Store}).
 @anchor{daemon-substitute-urls}
 Consider @var{urls} the default whitespace-separated list of substitute
 source URLs.  When this option is omitted,
address@hidden://mirror.hydra.gnu.org https://hydra.gnu.org} is used
-(@code{mirror.hydra.gnu.org} is a mirror of @code{hydra.gnu.org}).
address@hidden://@value{SUBSTITUTE-SERVER}} is used.
 
 This means that substitutes may be downloaded from @var{urls}, as long
 as they are signed by a trusted signature (@pxref{Substitutes}).
@@ -2321,7 +2323,7 @@ also result from derivation builds, can be available as 
substitutes.
 
 @cindex hydra
 @cindex build farm
-The @code{mirror.hydra.gnu.org} server is a front-end to an official build farm
+The @address@hidden server is a front-end to an official build farm
 that builds packages from Guix continuously for some
 architectures, and makes them available as substitutes.  This is the
 default source of substitutes; it can be overridden by passing the
@@ -2353,22 +2355,22 @@ other substitute server.
 @cindex substitutes, authorization thereof
 @cindex access control list (ACL), for substitutes
 @cindex ACL (access control list), for substitutes
-To allow Guix to download substitutes from @code{hydra.gnu.org} or a
+To allow Guix to download substitutes from @address@hidden or a
 mirror thereof, you
 must add its public key to the access control list (ACL) of archive
 imports, using the @command{guix archive} command (@pxref{Invoking guix
-archive}).  Doing so implies that you trust @code{hydra.gnu.org} to not
+archive}).  Doing so implies that you trust @address@hidden to not
 be compromised and to serve genuine substitutes.
 
-The public key for @code{hydra.gnu.org} is installed along with Guix, in
address@hidden@var{prefix}/share/guix/hydra.gnu.org.pub}, where @var{prefix} is
+The public key for @address@hidden is installed along with Guix, in
address@hidden@var{prefix}/share/guix/@value{SUBSTITUTE-SERVER}.pub}, where 
@var{prefix} is
 the installation prefix of Guix.  If you installed Guix from source,
 make sure you checked the GPG signature of
 @address@hidden, which contains this public key file.
 Then, you can run something like this:
 
 @example
-# guix archive --authorize < @var{prefix}/share/guix/hydra.gnu.org.pub
+# guix archive --authorize < 
@var{prefix}/share/guix/@value{SUBSTITUTE-SERVER}.pub
 @end example
 
 @quotation Note
@@ -2409,7 +2411,7 @@ $ guix build emacs --dry-run
 @end example
 
 @noindent
-This indicates that substitutes from @code{hydra.gnu.org} are usable and
+This indicates that substitutes from @address@hidden are usable and
 will be downloaded, when possible, for future builds.
 
 @cindex substitutes, how to disable
@@ -2501,9 +2503,9 @@ by a server.
 Today, each individual's control over their own computing is at the
 mercy of institutions, corporations, and groups with enough power and
 determination to subvert the computing infrastructure and exploit its
-weaknesses.  While using @code{hydra.gnu.org} substitutes can be
+weaknesses.  While using @address@hidden substitutes can be
 convenient, we encourage users to also build on their own, or even run
-their own build farm, such that @code{hydra.gnu.org} is less of an
+their own build farm, such that @address@hidden is less of an
 interesting target.  One way to help is by publishing the software you
 build using @command{guix publish} so that others have one more choice
 of server to download substitutes from (@pxref{Invoking guix publish}).
@@ -3658,11 +3660,11 @@ Read a single-item archive as served by substitute 
servers
 low-level operation needed in only very narrow use cases; see below.
 
 For example, the following command extracts the substitute for Emacs
-served by @code{hydra.gnu.org} to @file{/tmp/emacs}:
+served by @address@hidden to @file{/tmp/emacs}:
 
 @example
 $ wget -O - \
-  https://hydra.gnu.org/nar/@dots{}-emacs-24.5 \
+  https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-emacs-24.5 \
   | bunzip2 | guix archive -x /tmp/emacs
 @end example
 
@@ -6683,7 +6685,7 @@ but you are actually on an @code{x86_64} machine:
 
 @example
 $ guix build --log-file gdb -s mips64el-linux
-https://hydra.gnu.org/log/@dots{}-gdb-7.10
+https://@value{SUBSTITUTE-SERVER}/log/@dots{}-gdb-7.10
 @end example
 
 You can freely access a huge library of build logs!
@@ -8342,7 +8344,7 @@ When @command{guix publish} runs, it spawns an HTTP 
server which allows
 anyone with network access to obtain substitutes from it.  This means
 that any machine running Guix can also act as if it were a build farm,
 since the HTTP interface is compatible with Hydra, the software behind
-the @code{hydra.gnu.org} build farm.
+the @address@hidden build farm.
 
 For security, each substitute is signed, allowing recipients to check
 their authenticity and integrity (@pxref{Substitutes}).  Because
@@ -8579,20 +8581,20 @@ any given store item.
 The command output looks like this:
 
 @smallexample
-$ guix challenge --substitute-urls="https://hydra.gnu.org 
https://guix.example.org";
-updating list of substitutes from 'https://hydra.gnu.org'... 100.0%
+$ guix challenge --substitute-urls="https://@value{SUBSTITUTE-SERVER} 
https://guix.example.org";
+updating list of substitutes from 'https://@value{SUBSTITUTE-SERVER}'... 100.0%
 updating list of substitutes from 'https://guix.example.org'... 100.0%
 /gnu/store/@dots{}-openssl-1.0.2d contents differ:
   local hash: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
-  https://hydra.gnu.org/nar/@dots{}-openssl-1.0.2d: 
0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
+  https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-openssl-1.0.2d: 
0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
   https://guix.example.org/nar/@dots{}-openssl-1.0.2d: 
1zy4fmaaqcnjrzzajkdn3f5gmjk754b43qkq47llbyak9z0qjyim
 /gnu/store/@dots{}-git-2.5.0 contents differ:
   local hash: 00p3bmryhjxrhpn2gxs2fy0a15lnip05l97205pgbk5ra395hyha
-  https://hydra.gnu.org/nar/@dots{}-git-2.5.0: 
069nb85bv4d4a6slrwjdy8v1cn4cwspm3kdbmyb81d6zckj3nq9f
+  https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-git-2.5.0: 
069nb85bv4d4a6slrwjdy8v1cn4cwspm3kdbmyb81d6zckj3nq9f
   https://guix.example.org/nar/@dots{}-git-2.5.0: 
0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
 /gnu/store/@dots{}-pius-2.1.1 contents differ:
   local hash: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
-  https://hydra.gnu.org/nar/@dots{}-pius-2.1.1: 
0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
+  https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-pius-2.1.1: 
0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
   https://guix.example.org/nar/@dots{}-pius-2.1.1: 
1cy25x1a4fzq5rk0pmvc8xhwyffnqz95h2bpvqsz2mpvlbccy0gs
 
 @dots{}
@@ -8612,7 +8614,7 @@ the servers obtained a result different from the local 
build.
 
 @cindex non-determinism, in package builds
 As an example, @code{guix.example.org} always gets a different answer.
-Conversely, @code{hydra.gnu.org} agrees with local builds, except in the
+Conversely, @address@hidden agrees with local builds, except in the
 case of Git.  This might indicate that the build process of Git is
 non-deterministic, meaning that its output varies as a function of
 various things that Guix does not fully control, in spite of building
@@ -8626,14 +8628,14 @@ To find out what is wrong with this Git binary, we can 
do something along
 these lines (@pxref{Invoking guix archive}):
 
 @example
-$ wget -q -O - https://hydra.gnu.org/nar/@dots{}-git-2.5.0 \
+$ wget -q -O - https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-git-2.5.0 \
    | guix archive -x /tmp/git
 $ diff -ur --no-dereference /gnu/store/@dots{}-git.2.5.0 /tmp/git
 @end example
 
 This command shows the difference between the files resulting from the
 local build, and the files resulting from the build on
address@hidden (@pxref{Overview, Comparing and Merging Files,,
address@hidden@value{SUBSTITUTE-SERVER}} (@pxref{Overview, Comparing and 
Merging Files,,
 diffutils, Comparing and Merging Files}).  The @command{diff} command
 works great for text files.  When binary files differ, a better option
 is @uref{https://diffoscope.org/, Diffoscope}, a tool that helps
@@ -8648,7 +8650,7 @@ In the meantime, @command{guix challenge} is one tool to 
help address
 the problem.
 
 If you are writing packages for Guix, you are encouraged to check
-whether @code{hydra.gnu.org} and other substitute servers obtain the
+whether @address@hidden and other substitute servers obtain the
 same build result as you did with:
 
 @example
@@ -11238,14 +11240,14 @@ Number of build user accounts to create.
 @item @code{authorize-key?} (default: @code{#t})
 @cindex substitutes, authorization thereof
 Whether to authorize the substitute keys listed in
address@hidden default that of @code{hydra.gnu.org}
address@hidden default that of @address@hidden
 (@pxref{Substitutes}).
 
 @vindex %default-authorized-guix-keys
 @item @code{authorized-keys} (default: @var{%default-authorized-guix-keys})
 The list of authorized key files for archive imports, as a list of
 string-valued gexps (@pxref{Invoking guix archive}).  By default, it
-contains that of @code{hydra.gnu.org} (@pxref{Substitutes}).
+contains that of @address@hidden (@pxref{Substitutes}).
 
 @item @code{use-substitutes?} (default: @code{#t})
 Whether to use substitutes.
@@ -23747,7 +23749,7 @@ system}.
 @cindex substituter
 Users can obtain the new package definition simply by running
 @command{guix pull} (@pxref{Invoking guix pull}).  When
address@hidden is done building the package, installing the
address@hidden@value{SUBSTITUTE-SERVER}} is done building the package, 
installing the
 package automatically downloads binaries from there
 (@pxref{Substitutes}).  The only place where human intervention is
 needed is to review and apply the patch.
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 228d3c5926..cee9898d79 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -1518,7 +1518,7 @@ public key, with GUIX."
            (let ((status (cdr (waitpid pid))))
              (unless (zero? status)
                (format (current-error-port) "warning: \
-failed to register hydra.gnu.org public key: ~a~%" status))))))))
+failed to register public key '~a': ~a~%" key status))))))))
 
 (define %default-authorized-guix-keys
   ;; List of authorized substitute keys.
@@ -1630,7 +1630,7 @@ failed to register hydra.gnu.org public key: ~a~%" 
status))))))))
      ;; otherwise call 'chown' here, but the problem is that on a COW 
overlayfs,
      ;; chown leads to an entire copy of the tree, which is a bad idea.
 
-     ;; Optionally authorize hydra.gnu.org's key.
+     ;; Optionally authorize substitute server keys.
      (if authorize-key?
          #~(begin
              #$@(map (cut hydra-key-authorization <> guix) keys))
diff --git a/gnu/system/install.scm b/gnu/system/install.scm
index 45b3a0c839..c345ba0626 100644
--- a/gnu/system/install.scm
+++ b/gnu/system/install.scm
@@ -250,7 +250,7 @@ You have been warned.  Thanks for being so brave.\x1b[0m
           ;; The usual services.
           (syslog-service)
 
-          ;; The build daemon.  Register the hydra.gnu.org key as trusted.
+          ;; The build daemon.  Register the official server keys as trusted.
           ;; This allows the installation process to use substitutes by
           ;; default.
           (guix-service (guix-configuration (authorize-key? #t)))
diff --git a/guix/scripts/size.scm b/guix/scripts/size.scm
index 344be40883..25218a2945 100644
--- a/guix/scripts/size.scm
+++ b/guix/scripts/size.scm
@@ -297,7 +297,7 @@ Report the size of PACKAGE and its dependencies.\n"))
          (leave (G_ "missing store item argument\n")))
         ((files ..1)
          (leave-on-EPIPE
-          ;; Turn off grafts because (1) hydra.gnu.org does not serve grafted
+          ;; Turn off grafts because (1) substitute servers do not serve 
grafted
           ;; packages, and (2) they do not make any difference on the
           ;; resulting size.
           (parameterize ((%graft? #f))
-- 
2.19.2