gnu: Add Go 1.4.

* gnu/local.mk: Modified file.
* gnu/packages/golang.scm: New file.

Co-authored-by: Efraim Flashner <efraim@flashner.co.il>
Co-authored-by: Andy Wingo <wingo@igalia.com>
Co-authored-by: Ludovic Courtès <ludo@gnu.org>

2 files changed, 186 insertions, 0 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index f6aa2564a3..fa6c277be1 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -150,6 +150,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/gnustep.scm			\
   %D%/packages/gnuzilla.scm			\
   %D%/packages/gnu-pw-mgr.scm			\
+  %D%/packages/golang.scm			\
   %D%/packages/gperf.scm			\
   %D%/packages/gprolog.scm			\
   %D%/packages/gps.scm				\
diff --git a/gnu/packages/golang.scm b/gnu/packages/golang.scm
new file mode 100644
index 0000000000..cc1b66f0ae
--- /dev/null
+++ b/gnu/packages/golang.scm
@@ -0,0 +1,185 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016 Matthew Jordan <matthewjordandevops@yandex.com>
+;;; Copyright © 2016 Andy Wingo <wingo@igalia.com>
+;;;
+;;; This file is an addendum 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 golang)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix utils)
+  #:use-module (guix download)
+  #:use-module (guix packages)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages gcc)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages pcre)
+  #:use-module (ice-9 match)
+  #:use-module (srfi srfi-1))
+
+;; According to https://golang.org/doc/install/gccgo, gccgo-4.8.2 includes a
+;; complete go-1.1.2 implementation, gccgo-4.9 includes a complete go-1.2
+;; implementation, and gccgo-5 a complete implementation of go-1.4.  Ultimately
+;; we hope to build go-1.5+ with a bootstrap process using gccgo-5.  As of
+;; go-1.5, go cannot be bootstrapped without go-1.4, so we need to use go-1.4 or
+;; gccgo-5.  Mips is not officially supported, but it should work if it is
+;; bootstrapped.
+
+(define-public go-1.4
+  (package
+    (name "go")
+    (version "1.4.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://storage.googleapis.com/golang/"
+                                  name version ".src.tar.gz"))
+              (sha256
+               (base32
+                "0na9yqilzpvq0bjndbibfp07wr796gf252y471cip10bbdqgqiwr"))))
+    (build-system gnu-build-system)
+    (outputs '("out"
+               "doc"
+               "tests"))
+    (arguments
+     `(#:modules ((ice-9 match)
+                  (guix build gnu-build-system)
+                  (guix build utils))
+       #:tests? #f ; Tests are run by the all.bash script.
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (add-after 'patch-generated-file-shebangs 'chdir
+           (lambda _
+             (chdir "src")))
+         (add-before 'build 'prebuild
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((gcclib (string-append (assoc-ref inputs "gcc:lib") "/lib"))
+                    (ld (string-append (assoc-ref inputs "libc") "/lib"))
+                    (loader (car (find-files ld "^ld-linux.+")))
+                    (net-base (assoc-ref inputs "net-base"))
+                    (tzdata-path
+                     (string-append (assoc-ref inputs "tzdata") "/share/zoneinfo"))
+                    (output (assoc-ref outputs "out")))
+
+               ;; Removing net/ tests, which fail when attempting to access
+               ;; network resources not present in the build container.
+               (for-each delete-file
+                         '("net/multicast_test.go" "net/parse_test.go"
+                           "net/port_test.go"))
+
+               ;; Add libgcc to the RUNPATH.
+               (substitute* "cmd/go/build.go"
+                 (("cgoldflags := \\[\\]string\\{\\}")
+                  (string-append "cgoldflags := []string{"
+                                 "\"-rpath=" gcclib "\"}"))
+                 (("ldflags := buildLdflags")
+                  (string-append
+                   "ldflags := buildLdflags\n"
+                   "ldflags = append(ldflags, \"-r\")\n"
+                   "ldflags = append(ldflags, \"" gcclib "\")\n")))
+
+               (substitute* "os/os_test.go"
+                 (("/usr/bin") (getcwd))
+                 (("/bin/pwd") (which "pwd")))
+
+               ;; Disable failing tests: these tests attempt to access
+               ;; commands or network resources which are neither available or
+               ;; necessary for the build to succeed.
+               (for-each
+                (match-lambda
+                  ((file regex)
+                   (substitute* file
+                     ((regex all before test_name)
+                      (string-append before "Disabled" test_name)))))
+                '(("net/net_test.go" "(.+)(TestShutdownUnix.+)")
+                  ("net/dial_test.go" "(.+)(TestDialTimeout.+)")
+                  ("os/os_test.go" "(.+)(TestHostname.+)")
+                  ("time/format_test.go" "(.+)(TestParseInSydney.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestEcho.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestCommandRelativeName.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestCatStdin.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestCatGoodAndBadFile.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestExitStatus.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestPipes.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestStdinClose.+)")
+                  ("syscall/syscall_unix_test.go" "(.+)(TestPassFD\\(.+)")
+                  ("os/exec/exec_test.go" "(.+)(TestExtraFiles.+)")))
+
+               (substitute* "net/lookup_unix.go"
+                 (("/etc/protocols") (string-append net-base "/etc/protocols")))
+               (substitute* "time/zoneinfo_unix.go"
+                 (("/usr/share/zoneinfo/") tzdata-path))
+               (substitute* (find-files "cmd" "asm.c")
+                 (("/lib/ld-linux.*\\.so\\.[0-9]") loader))
+               #t)))
+
+         (replace 'build
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             ;; FIXME: Some of the .a files are not bit-reproducible.
+             (let* ((output (assoc-ref outputs "out")))
+               (setenv "CC" (which "gcc"))
+               (setenv "GOOS" "linux")
+               (setenv "GOROOT" (dirname (getcwd)))
+               (setenv "GOROOT_FINAL" output)
+               (setenv "CGO_ENABLED" "1")
+               (zero? (system* "sh" "all.bash")))))
+
+         (replace 'install
+           (lambda* (#:key outputs inputs #:allow-other-keys)
+             (let* ((output (assoc-ref outputs "out"))
+                    (doc_out (assoc-ref outputs "doc"))
+                    (bash (string-append (assoc-ref inputs "bash") "bin/bash"))
+                    (docs (string-append doc_out "/share/doc/" ,name "-" ,version))
+                    (tests (string-append
+                            (assoc-ref outputs "tests") "/share/" ,name "-" ,version)))
+               (mkdir-p tests)
+               (copy-recursively "../test" (string-append tests "/test"))
+               (delete-file-recursively "../test")
+               (mkdir-p docs)
+               (copy-recursively "../api" (string-append docs "/api"))
+               (delete-file-recursively "../api")
+               (copy-recursively "../doc" (string-append docs "/doc"))
+               (delete-file-recursively "../doc")
+
+               (for-each (lambda (file)
+                           (let ((file (string-append "../" file)))
+                             (install-file file docs)
+                             (delete-file file)))
+                         '("README" "CONTRIBUTORS" "AUTHORS" "PATENTS"
+                           "LICENSE" "VERSION" "robots.txt"))
+               (copy-recursively "../" output)
+               #t))))))
+    (inputs
+     `(("tzdata" ,tzdata)
+       ("pcre" ,pcre)
+       ("gcc:lib" ,gcc "lib")))
+    (native-inputs
+     `(("pkg-config" ,%pkg-config)
+       ("which" ,which)
+       ("net-base" ,net-base)
+       ("perl" ,perl)))
+
+    (home-page "https://golang.org/")
+    (synopsis "Compiler and libraries for Go, a statically-typed language")
+    (description "Go, also commonly referred to as golang, is an imperative
+programming language.  Designed primarily for systems programming, it is a
+compiled, statically typed language in the tradition of C and C++, with
+garbage collection, various safety features and in the style of communicating
+sequential processes (CSP) concurrent programming features added.")
+    (license license:bsd-3)))