Backport JSON info files patch

While unmerged, patch it here
openwrt/openwrt#2192

Signed-off-by: Paul Spooren <[email protected]>

example-snapshot.sh

@@ -3,5 +3,5 @@ export VERSION="snapshot"
 export TARGET="ath79/generic"
 export PROFILE="etactica_eg200"
 export PACKAGES="tmux htop"
-
-./meta image
+./meta info
+#./meta image

meta

@@ -205,3 +205,7 @@ make "$1" \
     EXTRA_IMAGE_NAME="$EXTRA_IMAGE_NAME" \
     FILES="$FILES"
 )
+
+#[ "$1" = "image" ] && (cd "$IB_DIR" &&
+#make "jsonmergeimageinfo" OUTPUT_DIR="$ROOT_DIR/bin/$DISTRO/$VERSION_PATH"
+#)

patches/0001-build-create-JSON-files-containing-image-info.patch

@@ -0,0 +1,171 @@
+From c3ee249db446c05e8b427c7691e8a85f4b91622b Mon Sep 17 00:00:00 2001
+From: Paul Spooren <[email protected]>
+Date: Sun, 18 Aug 2019 09:56:45 -1000
+Subject: [PATCH 1/2] build: create JSON files containing image info
+
+The JSON info files contain details about the created firmware images
+per device and are stored next to the created images.
+
+The JSON files are stored as "$(IMAGE_PREFIX).json" and contain some
+device/image meta data as well as a list of created firmware images.
+
+An example of openwrt-ath79-generic-tplink_tl-wdr3600-v1.json
+
+    {
+      "id": "tplink_tl-wdr3600-v1",
+      "image_prefix": "openwrt-ath79-generic-tplink_tl-wdr3600-v1",
+      "images": [
+	{
+	  "name": "openwrt-ath79-generic-tplink_tl-wdr3600-v1-squashfs-sysupgrade.bin",
+	  "sha256": "60ef977447d57ffe406f1f6170860be8043654d961933b73645850b25c6a1990",
+	  "type": "sysupgrade"
+	},
+	{
+	  "name": "openwrt-ath79-generic-tplink_tl-wdr3600-v1-squashfs-factory.bin",
+	  "sha256": "c6fae436b13f512e65ef05c0ae94308dd1cc9e20fd929dd3e0422574fe58d2b5",
+	  "type": "factory"
+	}
+      ],
+      "metadata_version": 1,
+      "model": "TL-WDR3600",
+      "supported_devices": [
+	"tplink,tl-wdr3600-v1",
+	"tl-wdr4300"
+      ],
+      "target": "ath79/generic",
+      "title": [
+	"TP-Link TL-WDR3600 v1"
+      ],
+      "variant": "v1",
+      "vendor": "TP-Link",
+      "version_commit": "r10764-84c103509a",
+      "version_number": "SNAPSHOT"
+    }
+
+Signed-off-by: Paul Spooren <[email protected]>
+---
+ config/Config-build.in         |  7 +++++
+ include/image.mk               | 24 +++++++++++++++-
+ scripts/json_add_image_info.py | 50 ++++++++++++++++++++++++++++++++++
+ 3 files changed, 80 insertions(+), 1 deletion(-)
+ create mode 100755 scripts/json_add_image_info.py
+
+diff --git a/config/Config-build.in b/config/Config-build.in
+index 35341833e3..ecd68a6ec3 100644
+--- a/config/Config-build.in
++++ b/config/Config-build.in
+@@ -7,6 +7,13 @@
+
+ menu "Global build settings"
+
++	config JSON_ADD_IMAGE_INFO
++		bool "Create JSON info files per build image"
++		default y
++		help
++		  The JSON info files contain information about the device and
++		  build images, stored next to the firmware images.
++
+ 	config ALL_NONSHARED
+ 		bool "Select all target specific packages by default"
+ 		select ALL_KMODS
+diff --git a/include/image.mk b/include/image.mk
+index 599adfaa10..b4385290bb 100644
+--- a/include/image.mk
++++ b/include/image.mk
+@@ -571,7 +571,27 @@ define Device/Build/image
+
+   $(BIN_DIR)/$(call IMAGE_NAME,$(1),$(2)): $(KDIR)/tmp/$(call IMAGE_NAME,$(1),$(2))
+ 	cp $$^ $$@
+-
++	$(if $(CONFIG_JSON_ADD_IMAGE_INFO), \
++		DEVICE_ID="$(DEVICE_NAME)" \
++		TOPDIR="$(TOPDIR)" \
++		BIN_DIR="$(BIN_DIR)" \
++		IMAGE_NAME="$(IMAGE_NAME)" \
++		IMAGE_TYPE=$(word 1,$(subst ., ,$(2))) \
++		IMAGE_PREFIX="$(IMAGE_PREFIX)" \
++		DEVICE_TITLE="$(DEVICE_TITLE)" \
++		DEVICE_VENDOR="$(DEVICE_VENDOR)" \
++		DEVICE_MODEL="$(DEVICE_MODEL)" \
++		DEVICE_VARIANT="$(DEVICE_VARIANT)" \
++		DEVICE_ALT0_TITLE="$(DEVICE_ALT0_TITLE)" \
++		DEVICE_ALT1_TITLE="$(DEVICE_ALT1_TITLE)" \
++		DEVICE_ALT2_TITLE="$(DEVICE_ALT2_TITLE)" \
++		TARGET="$(BOARD)" \
++		SUBTARGET="$(SUBTARGET)" \
++		VERSION_NUMBER="$(VERSION_NUMBER)" \
++		VERSION_CODE="$(VERSION_CODE)" \
++		SUPPORTED_DEVICES="$(SUPPORTED_DEVICES)" \
++		$(TOPDIR)/scripts/json_add_image_info.py \
++	)
+ endef
+
+ define Device/Build/artifact
+@@ -589,6 +609,8 @@ define Device/Build/artifact
+ endef
+
+ define Device/Build
++  $(shell rm -f $(BIN_DIR)/$(IMG_PREFIX)-$(1).json)
++
+   $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),$(call Device/Build/initramfs,$(1)))
+   $(call Device/Build/kernel,$(1))
+
+diff --git a/scripts/json_add_image_info.py b/scripts/json_add_image_info.py
+new file mode 100755
+index 0000000000..a868880942
+--- /dev/null
++++ b/scripts/json_add_image_info.py
+@@ -0,0 +1,50 @@
++#!/usr/bin/env python3
++
++import json
++import os
++import hashlib
++
++
++def e(variable):
++    return os.environ.get(variable)
++
++
++json_path = "{}{}{}.json".format(e("BIN_DIR"), os.sep, e("IMAGE_PREFIX"))
++
++with open(os.path.join(e("BIN_DIR"), e("IMAGE_NAME")), "rb") as image_file:
++    image_hash = hashlib.sha256(image_file.read()).hexdigest()
++
++if not os.path.exists(json_path):
++    device_info = {
++        "id": e("DEVICE_ID"),
++        "image_prefix": e("IMAGE_PREFIX"),
++        "images": [],
++        "metadata_version": 1,
++        "model": e("DEVICE_MODEL"),
++        "supported_devices": e("SUPPORTED_DEVICES").split(),
++        "target": "{}/{}".format(e("TARGET"), e("SUBTARGET")),
++        "title": list(
++            filter(
++                None,
++                [
++                    e("DEVICE_TITLE"),
++                    e("DEVICE_ALT0_TITLE"),
++                    e("DEVICE_ALT1_TITLE"),
++                    e("DEVICE_ALT2_TITLE"),
++                ],
++            )
++        ),
++        "variant": e("DEVICE_VARIANT"),
++        "vendor": e("DEVICE_VENDOR"),
++        "version_commit": e("VERSION_CODE"),
++        "version_number": e("VERSION_NUMBER"),
++    }
++else:
++    with open(json_path, "r") as json_file:
++        device_info = json.load(json_file)
++
++image_info = {"type": e("IMAGE_TYPE"), "name": e("IMAGE_NAME"), "sha256": image_hash}
++device_info["images"].append(image_info)
++
++with open(json_path, "w") as json_file:
++    json.dump(device_info, json_file, sort_keys=True, indent="  ")
+-- 
+2.23.0.rc1
+