Add ability to store extra URLs to be displayed for comparison recipes

Add a structure that lets you define a template URL per layer to be
shown per comparison recipe. For example, you could use this to define a
URL template to link to the upstream summary page for the package (e.g.
Fedora's page for the acl package is at
https://apps.fedoraproject.org/packages/acl, so you would use
https://apps.fedoraproject.org/packages/%pn% as the template and then
this would be shown for every package).

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

layerindex/admin.py

@@ -196,6 +196,7 @@ admin.site.register(Distro, DistroAdmin)
 admin.site.register(BBAppend, BBAppendAdmin)
 admin.site.register(BBClass, BBClassAdmin)
 admin.site.register(Patch)
+admin.site.register(LayerRecipeExtraURL)
 admin.site.register(RecipeChangeset, RecipeChangesetAdmin)
 admin.site.register(ClassicRecipe, ClassicRecipeAdmin)
 admin.site.register(PythonEnvironment)

layerindex/migrations/0018_layerrecipeextraurl.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.12 on 2018-05-15 04:10
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('layerindex', '0017_classicrecipe_needs_attention'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='LayerRecipeExtraURL',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='Name to display for link', max_length=50)),
+                ('url', models.CharField(help_text='Template for URL to link to (macros: %pn% %pv% %branch% %actual_branch%)', max_length=255, verbose_name='URL')),
+                ('layer', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='layerindex.LayerItem')),
+            ],
+            options={'verbose_name': 'Layer Recipe Extra URL'},
+        ),
+    ]

layerindex/models.py

@@ -11,6 +11,7 @@ from django.core.urlresolvers import reverse
 from django.core.validators import URLValidator
 from django.db.models.signals import pre_save
 from django.dispatch import receiver
+from collections import namedtuple
 import os.path
 import re
 import posixpath
@@ -180,6 +181,27 @@ class LayerItem(models.Model):
     def __str__(self):
         return self.name
 
+
+class LayerRecipeExtraURL(models.Model):
+    layer = models.ForeignKey(LayerItem)
+    name = models.CharField(max_length=50, help_text='Name to display for link')
+    url = models.CharField('URL', max_length=255, help_text='Template for URL to link to (macros: %pn% %pv% %branch% %actual_branch%)')
+
+    class Meta:
+        verbose_name = "Layer Recipe Extra URL"
+
+    def render_url(self, recipe):
+        url = self.url
+        url = url.replace('%pn%', recipe.pn)
+        url = url.replace('%pv%', recipe.pv)
+        url = url.replace('%branch%', recipe.layerbranch.branch.name)
+        url = url.replace('%actual_branch%', recipe.layerbranch.actual_branch)
+        return url
+
+    def __str__(self):
+        return '%s - %s' % (self.layer.name, self.name)
+
+
 class YPCompatibleVersion(models.Model):
     name = models.CharField('Yocto Project Version', max_length=25, unique=True, help_text='Name of this Yocto Project compatible version (e.g. "2.0")')
     description = models.TextField(blank=True)
@@ -437,6 +459,12 @@ class Recipe(models.Model):
         else:
             return None
 
+    def extra_urls(self):
+        ExtraURL = namedtuple('ExtraURL', 'name url')
+        for item in self.layerbranch.layer.layerrecipeextraurl_set.all():
+            eu = ExtraURL(name=item.name, url=item.render_url(self))
+            yield eu
+
     def __str__(self):
         return os.path.join(self.filepath, self.filename)
 

templates/layerindex/classicrecipedetail.html

@@ -85,6 +85,18 @@
                                 {% endif %}
                             </td>
                         </tr>
+                        {% if recipe.extra_urls %}
+                        <tr>
+                            <th>Extra links</th>
+                            <td>
+                                <ul class="unstyled">
+                                {% for extra_url in recipe.extra_urls %}
+                                    <li><a href="{{ extra_url.url }}">{{ extra_url.name }}</a></li>
+                                {% endfor %}
+                                </ul>
+                            </td>
+                        </tr>
+                        {% endif %}
                     </tbody>
                 </table>