gnu: Add tigervnc-server.

* gnu/packages/tigervnc.scm (tigervnc-server): New variable.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

1 files changed, 148 insertions, 0 deletions

diff --git a/gnu/packages/tigervnc.scm b/gnu/packages/tigervnc.scm
index 89aac1c63a..695f5bb4f4 100644
--- a/gnu/packages/tigervnc.scm
+++ b/gnu/packages/tigervnc.scm
@@ -82,3 +82,151 @@ applications.  It also provides extensions for advanced authentication methods
 and TLS encryption.  This package installs only the VNC client, the
 application which is needed to connect to VNC servers.")
     (license license:gpl2)))
+
+;; A VNC server is, in fact, an X server so it seems like a good idea
+;; to build on the work already done for xorg-server package.  This is
+;; not entirely compatible with the recommendation in BUILDING.txt
+;; where the client is built first, then the source code of the X
+;; server is copied into a subdir of the build directory, patched with
+;; VNC additions and then build and installed as Xvnc.  The procedure
+;; was turned around, where TigerVNC code is downloaded and built
+;; inside the Guix X server build dir. Also, the VNC patching process
+;; for the X server is automated in a straightforward manner.
+(define-public tigervnc-server
+  (package
+    (inherit xorg-server)
+    (name "tigervnc-server")
+    (version "1.9.0")
+    (native-inputs
+     `(("tigervnc-src" ,(origin
+                          (method git-fetch)
+                          (uri
+                           (git-reference
+                            (url "https://github.com/TigerVNC/tigervnc.git")
+                            (commit "v1.9.0")))
+                          (sha256
+                           (base32
+                            "0b47fg3741qs3zdpl2zr0s6jz46dypp2j6gqrappbzm3ywnnmm1x"))))
+       ("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)
+       ("gettext-minimal" ,gettext-minimal)
+       ("font-util" ,font-util)
+       ("cmake" ,cmake)
+       ("gcc-toolchain" ,gcc-toolchain)
+       ("perl" ,perl)
+       ,@(package-native-inputs tigervnc-client)
+       ,@(package-inputs tigervnc-client)
+       ,@(package-native-inputs xorg-server)))
+    (inputs
+     `(("perl" ,perl)
+       ("coreutils" ,coreutils)
+       ("xauth" ,xauth)
+       ,@(package-inputs xorg-server)))
+    (propagated-inputs
+     `(("xauth" ,xauth)
+       ,@(package-propagated-inputs xorg-server)))
+    (arguments
+     (substitute-keyword-arguments
+         (package-arguments xorg-server)
+       ((#:configure-flags flags)
+        `(append '("--with-pic"         ; Taken from BUILDING.txt
+                   "--without-dtrace"
+                   "--disable-static"
+                   "--disable-dri2"
+                   "--disable-xinerama"
+                   "--disable-xvfb"
+                   "--disable-xnest"
+                   "--disable-xorg"
+                   "--disable-dmx"
+                   "--disable-xwin"
+                   "--disable-xephyr"   ; Is this necessary? (*)
+                   "--disable-kdrive"
+                   ;; "--disable-config-dbus" ; This was a warning.
+                   "--disable-config-hal"
+                   "--disable-config-udev"
+                   "--disable-dri2"
+                   ;; "--enable-install-libxf86config" ; This, too, was a warning.
+                   "--enable-glx")
+                 (delete "--enable-xephyr" ,flags))) ; Is this necessary? (*)
+       ((#:modules modules)
+        `(append '((ice-9 ftw)
+                   (ice-9 match)
+                   (guix build utils)
+                   (guix build gnu-build-system))
+                 modules))
+       ((#:phases phases)
+        `(modify-phases ,phases
+           (delete 'check)              ;)
+           (add-after 'unpack 'copy-tvnc-xserver
+             (lambda _
+               (let*
+                   ((tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                    (tvnc-xserver (string-append tvnc-src "/unix/xserver")))
+                 (copy-recursively tvnc-xserver ".")
+                 #t)))
+           (add-after 'copy-tvnc-xserver 'patch-xserver
+             (lambda _
+               (let*
+                   ((tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                    (xorg-server-version ,(package-version xorg-server))
+                    (which-patch (lambda ()
+                                   (let*
+                                       ((patch-num (apply string-append
+                                                          (list-head (string-split xorg-server-version
+                                                                                   #\.)
+                                                                     2)))
+                                        (fn (format "~a/unix/xserver~a.patch" tvnc-src patch-num)))
+                                     (when (not (file-exists? fn))
+                                       (error (format "Patch file, ~a,
+corresponding to the input xorg-server version, does not exist.  Installation
+will fail.  " fn)))
+
+                                     fn))) ; VNC patches for xserver have the
+                                           ; form xserverXY[Y].patch, where
+                                           ; X.Y[Y].Z is the Xorg server
+					; version.
+                    (xserver-patch (which-patch)))
+                 (invoke "patch" "-p1" "-i" xserver-patch)
+                 (invoke "autoreconf" "-fiv"))))
+           (add-before 'build 'build-tigervnc
+             (lambda _
+               (let* ((out (assoc-ref %outputs "out"))
+                      (tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                      (tvnc-build (string-append (getcwd) "/tigervnc-build")))
+                 (mkdir-p tvnc-build)
+                 (with-directory-excursion tvnc-build
+                   (invoke "cmake" "-G" "Unix Makefiles"
+                           (string-append "-DCMAKE_INSTALL_PREFIX=" out)
+                           tvnc-src)
+                   (invoke "make" "-j" (number->string (parallel-job-count)))))))
+           (replace 'build
+             (lambda _
+               (let*  ((tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                       (tvnc-build (string-append (getcwd) "/tigervnc-build"))
+                       (srcarg (string-append "TIGERVNC_SRCDIR=" tvnc-src))
+                       (buildarg (string-append "TIGERVNC_BUILDDIR=" tvnc-build)))
+                 (invoke "make" srcarg buildarg "-j"
+                         (number->string (parallel-job-count))))))
+           (add-before 'install 'install-tigervnc-aux
+             (lambda _
+               (let*  ((out (assoc-ref %outputs 'out))
+                       (tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                       (tvnc-build (string-append (getcwd) "/tigervnc-build"))
+                       (srcarg (string-append "TIGERVNC_SRCDIR=" tvnc-src))
+                       (buildarg (string-append "TIGERVNC_BUILDDIR=" tvnc-build)))
+                 (with-directory-excursion (string-append tvnc-build "/unix")
+                   (invoke "make" srcarg buildarg "install")))))
+           (replace 'install
+             (lambda* _
+               (let*  ((tvnc-src (assoc-ref %build-inputs "tigervnc-src"))
+                       (tvnc-build (string-append (getcwd) "/tigervnc-build"))
+                       (srcarg (string-append "TIGERVNC_SRCDIR=" tvnc-src))
+                       (buildarg (string-append "TIGERVNC_BUILDDIR=" tvnc-build)))
+                 (invoke "make" "install" srcarg buildarg))))))))
+    (description "TigerVNC is a client/server implementation of VNC (Virtual
+Network Computing).  It provides enough performance to run even 3D and video
+applications.  It also provides extensions for advanced authentication methods
+and TLS encryption.  This package installs the VNC server, a program that will
+enable users with VNC clients to log into a graphical session on the machine
+where the server is installed.")))