scripts/machine-summary: harvest more patch data

Instead of just putting whether there are patches or not into the
context, store the list of patches, the layer they came from, and the
upstream status.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

scripts/machine-summary.py

@@ -1,9 +1,10 @@
 #! /usr/bin/env python3
 
-import os
-import sys
 import argparse
 import datetime
+import os
+import re
+import sys
 
 import jinja2
 
@@ -42,8 +43,28 @@ def layer_path(layername, d):
             return path
     return None
 
+def extract_patch_info(src_uri, d):
+    """
+    Parse the specified patch entry from a SRC_URI and return (base name, layer name, status) tuple
+    """
+    import bb.fetch, bb.utils
+
+    info = {}
+    localpath = bb.fetch.decodeurl(src_uri)[2]
+    info["name"] = os.path.basename(localpath)
+    info["layer"] = bb.utils.get_file_layer(localpath, d)
+
+    status = "Unknown"
+    with open(localpath, errors="ignore") as f:
+        m = re.search(r"^[\t ]*Upstream[-_ ]Status:?[\t ]*(\w*)", f.read(), re.IGNORECASE | re.MULTILINE)
+        if m:
+            # TODO: validate
+            status = m.group(1)
+    info["status"] = status
+    return info
+
 def harvest_data(machines, recipes):
-    import bb.tinfoil, bb.utils
+    import bb.tinfoil
     with bb.tinfoil.Tinfoil() as tinfoil:
         tinfoil.prepare(config_only=True)
         corepath = layer_path("core", tinfoil.config_data)
@@ -83,7 +104,8 @@ def harvest_data(machines, recipes):
                 details = versions[machine][recipe] = {}
                 details["recipe"] = d.getVar("PN")
                 details["version"] = trim_pv(d.getVar("PV"))
-                details["patched"] = bool(oe.patch.src_patches(d))
+                details["patches"] = [extract_patch_info(p, d) for p in oe.patch.src_patches(d)]
+                details["patched"] = bool(details["patches"])
 
     # Now backfill the upstream versions
     for machine in versions: