gnu: services: Add cgit.

* gnu/services/version-control.scm
(<cgit-configuration-file>, <cgit-configuration>): New record types.
(cgit-configuration-robots-string, cgit-activation,
cgit-configuration-nginx-config): New procedures.
(%cgit-configuration-nginx, cgit-service-type): New variables.
* gnu/tests/version-control.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Version Control): Document the cgit service.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 176 insertions, 0 deletions

diff --git a/gnu/tests/version-control.scm b/gnu/tests/version-control.scm
new file mode 100644
index 00000000000..5a3937cfedd
--- /dev/null
+++ b/gnu/tests/version-control.scm
@@ -0,0 +1,176 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.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 tests version-control)
+  #:use-module (gnu tests)
+  #:use-module (gnu system)
+  #:use-module (gnu system file-systems)
+  #:use-module (gnu system shadow)
+  #:use-module (gnu system vm)
+  #:use-module (gnu services)
+  #:use-module (gnu services version-control)
+  #:use-module (gnu services web)
+  #:use-module (gnu services networking)
+  #:use-module (gnu packages version-control)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:export (%test-cgit))
+
+(define %make-git-repository
+  ;; Create Git repository in /srv/git/test.
+  #~(begin
+      (mkdir-p "/srv/git/test")
+      (system* (string-append #$git "/bin/git") "-C" "/srv/git/test"
+               "init" "--bare")))
+
+(define %cgit-configuration-nginx
+  (list
+   (nginx-server-configuration
+    (root cgit)
+    (locations
+     (list
+      (nginx-location-configuration
+       (uri "@cgit")
+       (body '("fastcgi_param SCRIPT_FILENAME $document_root/lib/cgit/cgit.cgi;"
+               "fastcgi_param PATH_INFO $uri;"
+               "fastcgi_param QUERY_STRING $args;"
+               "fastcgi_param HTTP_HOST $server_name;"
+               "fastcgi_pass 127.0.0.1:9000;")))))
+    (try-files (list "$uri" "@cgit"))
+    (http-port 19418)
+    (https-port #f)
+    (ssl-certificate #f)
+    (ssl-certificate-key #f))))
+
+(define %cgit-os
+  ;; Operating system under test.
+  (let ((base-os
+         (simple-operating-system
+          (dhcp-client-service)
+          (service nginx-service-type)
+          (service fcgiwrap-service-type)
+          (service cgit-service-type
+                   (cgit-configuration
+                    (nginx %cgit-configuration-nginx)))
+          (simple-service 'make-git-repository activation-service-type
+                          %make-git-repository))))
+    (operating-system
+      (inherit base-os)
+      (packages (cons* git
+                       (operating-system-packages base-os))))))
+
+(define* (run-cgit-test #:optional (http-port 19418))
+  "Run tests in %CGIT-OS, which has nginx running and listening on
+HTTP-PORT."
+  (define os
+    (marionette-operating-system
+     %cgit-os
+     #:imported-modules '((gnu services herd)
+                          (guix combinators))))
+
+  (define vm
+    (virtual-machine
+     (operating-system os)
+     (port-forwardings `((8080 . ,http-port)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (gnu build marionette)
+                       (web uri)
+                       (web client)
+                       (web response))
+
+          (define marionette
+            (make-marionette (list #$vm)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "cgit")
+
+          ;; Wait for nginx to be up and running.
+          (test-eq "service running"
+            'running!
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (start-service 'nginx)
+                'running!)
+             marionette))
+
+          ;; Wait for fcgiwrap to be up and running.
+          (test-eq "service running"
+            'running!
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (start-service 'fcgiwrap)
+                'running!)
+             marionette))
+
+          ;; Make sure the PID file is created.
+          (test-assert "PID file"
+            (marionette-eval
+             '(file-exists? "/var/run/nginx/pid")
+             marionette))
+
+          ;; Make sure the configuration file is created.
+          (test-assert "configuration file"
+            (marionette-eval
+             '(file-exists? "/etc/cgitrc")
+             marionette))
+
+          ;; Make sure Git test repository is created.
+          (test-assert "Git test repository"
+            (marionette-eval
+             '(file-exists? "/srv/git/test")
+             marionette))
+
+          ;; Make sure we can access pages that correspond to our repository.
+          (letrec-syntax ((test-url
+                           (syntax-rules ()
+                             ((_ path code)
+                              (test-equal (string-append "GET " path)
+                                code
+                                (let-values (((response body)
+                                              (http-get (string-append
+                                                         "http://localhost:8080"
+                                                         path))))
+                                  (response-code response))))
+                             ((_ path)
+                              (test-url path 200)))))
+            (test-url "/")
+            (test-url "/test")
+            (test-url "/test/log")
+            (test-url "/test/tree")
+            (test-url "/test/does-not-exist" 404)
+            (test-url "/does-not-exist" 404))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "cgit-test" test))
+
+(define %test-cgit
+  (system-test
+   (name "cgit")
+   (description "Connect to a running Cgit server.")
+   (value (run-cgit-test))))