Track SRCREV for each recipe

For the purposes of the branch comparison function I'm about to add it
would be useful to track the value of SRCREV, so we can see if it has
changed even if PV hasn't.

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

layerindex/migrations/0043_recipe_srcrev.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.22 on 2019-10-20 22:15
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('layerindex', '0042_recipe_pe_pr'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='recipe',
+            name='srcrev',
+            field=models.CharField(blank=True, max_length=64),
+        ),
+    ]

layerindex/models.py

@@ -475,6 +475,7 @@ class Recipe(models.Model):
     updated = models.DateTimeField(auto_now=True)
     blacklisted = models.CharField(max_length=255, blank=True)
     configopts = models.CharField(max_length=4096, blank=True)
+    srcrev = models.CharField(max_length=64, blank=True)
 
     def vcs_web_url(self):
         url = self.layerbranch.file_url(os.path.join(self.filepath, self.filename))

layerindex/update_layer.py

@@ -110,6 +110,10 @@ def update_recipe_file(tinfoil, data, path, recipe, layerdir_start, repodir, sto
         recipe.pv = envdata.getVar("PV", True)
         recipe.pr = envdata.getVar("PR", True) or ""
         recipe.pe = envdata.getVar("PE", True) or ""
+        recipe.srcrev = envdata.getVar('SRCREV', True) or ''
+        if recipe.srcrev == 'INVALID':
+            # INVALID is the default from bitbake.conf, but we don't want to see it
+            recipe.srcrev = ''
         recipe.summary = envdata.getVar("SUMMARY", True)
         recipe.description = envdata.getVar("DESCRIPTION", True)
         recipe.section = envdata.getVar("SECTION", True)

templates/layerindex/recipedetail.html

@@ -54,7 +54,7 @@
                         </tr>
                         <tr>
                             <th>Version</th>
-                            <td>{{ recipe.pv }}</td>
+                            <td>{{ recipe.pv }}{% if recipe.srcrev %} ({{ recipe.srcrev }}){% endif %}</td>
                         </tr>
                         <tr>
                             <th>Summary</th>