From: Paul Spooren <mail@aparcar.org>
Date: Sun, 1 Nov 2020 21:53:39 +0000 (-1000)
Subject: build: store SOURCE_DATE_EPOCH in JSON info files
X-Git-Tag: v19.07.9~9
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=524cbcf6f5b07f3d9ee45e445da12760947e232e;p=openwrt%2Fopenwrt.git

build: store SOURCE_DATE_EPOCH in JSON info files

The source date epoch is the only reproducible date close to the actual
build date. It can be used for tooling like the firmware wizard to show
the image age.

Signed-off-by: Paul Spooren <mail@aparcar.org>
(cherry picked from commit 165f0b00cdd2f763c1d478c2f58c535fc19b13bd)
[store source_date_epoch as integer]
Signed-off-by: Paul Spooren <mail@aparcar.org>
---

diff --git a/include/image.mk b/include/image.mk
index ee9885c8f7..1c37d5839f 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -532,6 +532,7 @@ define Device/Build/image
 	@mkdir -p $$(shell dirname $$@)
 	DEVICE_ID="$(DEVICE_NAME)" \
 	BIN_DIR="$(BIN_DIR)" \
+	SOURCE_DATE_EPOCH=$(SOURCE_DATE_EPOCH) \
 	IMAGE_NAME="$(IMAGE_NAME)" \
 	IMAGE_TYPE=$(word 1,$(subst ., ,$(2))) \
 	IMAGE_FILESYSTEM="$(1)" \
diff --git a/scripts/json_add_image_info.py b/scripts/json_add_image_info.py
index 9a640ad468..23d816916c 100755
--- a/scripts/json_add_image_info.py
+++ b/scripts/json_add_image_info.py
@@ -31,6 +31,7 @@ image_info = {
     "target": "{}/{}".format(getenv("TARGET"), getenv("SUBTARGET")),
     "version_code": getenv("VERSION_CODE"),
     "version_number": getenv("VERSION_NUMBER"),
+    "source_date_epoch": int(getenv("SOURCE_DATE_EPOCH")),
     "profiles": {
         device_id: {
             "image_prefix": getenv("IMAGE_PREFIX"),