classes/package: Add extended packaged data

Adds extended package data which is encoded as JSON which allows it to
encode more structure than the "flat" package data files. The extended
data might be much larger than the standard package data, so it is not
read by default and instead requires
oe.packagedata.read_subpkgdata_extended() to be called

Currently, the file sizes and ELF debug sources are saved off into the
extended package data

(From OE-Core rev: db9cf430e54ae68da80fbc3fba80ce88d8df164d)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Reviewed-by: Saul Wold <saul.wold@windriver.com>
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/meta/lib/oe/packagedata.py b/meta/lib/oe/packagedata.py
index 0b17897e40..02c81e5a52 100644
--- a/meta/lib/oe/packagedata.py
+++ b/meta/lib/oe/packagedata.py
@@ -57,6 +57,18 @@ def read_subpkgdata_dict(pkg, d):
         ret[newvar] = subd[var]
     return ret
 
+def read_subpkgdata_extended(pkg, d):
+    import json
+    import bb.compress.zstd
+
+    fn = d.expand("${PKGDATA_DIR}/extended/%s.json.zstd" % pkg)
+    try:
+        num_threads = int(d.getVar("BB_NUMBER_THREADS"))
+        with bb.compress.zstd.open(fn, "rt", encoding="utf-8", num_threads=num_threads) as f:
+            return json.load(f)
+    except FileNotFoundError:
+        return None
+
 def _pkgmap(d):
     """Return a dictionary mapping package to recipe name."""