graph view, & use test make target instead of check

Dockerfile

@@ -10,6 +10,7 @@ ADD requirements.txt ./
 RUN apt-get update -qq && apt-get install -qqy \
     apt-transport-https \
     git \
+    graphviz \
     libpq-dev \
     netcat-openbsd \
     ssmtp \

rainboard/models.py

@@ -758,7 +758,7 @@ class Dependency(models.Model):
         unique_together = ('project', 'library')
 
     def __str__(self):
-        return '{self.project} depends on {self.library}: {self.robotpkg:d} {self.cmake:d}'
+        return f'{self.project} depends on {self.library}: {self.robotpkg:d} {self.cmake:d}'
 
 
 def get_default_forge(project):

rainboard/templates/rainboard/gitlab-ci.yml

@@ -18,7 +18,7 @@ cache:
     - make checkout MASTER_REPOSITORY="dir ${CI_PROJECT_DIR}"
     - make install
     - cd work.$(hostname)/$(make show-var VARNAME=DISTNAME)
-{% if project.tests %}    - make check
+{% if project.tests %}    - make test
 {% endif %}
 {% for image in robotpkg.valid_images %}{{ image.get_job_name }}:
   <<: *robotpkg-{{ robotpkg }}

rainboard/views.py

@@ -105,3 +105,16 @@ def docker(request):
         cmd = filters.pop('cmd')
     images = models.Image.objects.filter(**filters)
     return HttpResponse('\n'.join([' '.join(getattr(image, cmd)()) for image in images]), content_type="text/plain")
+
+
+
+def graph(request):
+    with open('/tmp/graph', 'w') as f:
+        print('digraph {', file=f)
+        for project in Project.objects.all():
+            print(f'{{I{project.pk} [label="{project}"];}}', file=f)
+        for dep in Dependency.objects.all():
+            print(f'I{dep.project.pk} -> I{dep.library.pk};', file=f)
+        print('}', file=f)
+    svg = run(['dot', '/tmp/graph', '-Tsvg'], capture_output=True).stdout.decode()
+    return HttpResponse(svg, content_type='image/svg+xml')