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| author | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-07-09 19:14:45 +0200 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-07-31 11:40:15 +0200 |
| commit | 6867d86e085dd4a284c8ee8878839c9e77546f46 (patch) | |
| tree | 9b854ef3d4dcfc10b991bcf88862175fc499e3f2 /include/image-commands.mk | |
| parent | 84cb0f7ace73fad15e29e1d74c469b37f90b334d (diff) | |
| download | upstream-6867d86e085dd4a284c8ee8878839c9e77546f46.tar.gz upstream-6867d86e085dd4a284c8ee8878839c9e77546f46.tar.bz2 upstream-6867d86e085dd4a284c8ee8878839c9e77546f46.zip | |
build: add DEVICE_COMPAT_VERSION and DEVICE_COMPAT_MESSAGE
We regularly encounter the situation that devices are subject to
changes that will make them incompatible to previous versions.
Removing SUPPORTED_DEVICES will not really be helpful in most of these
cases, as this only helps after a rename.
To solve this situation, this patchset introduces a compatibility
version for devices. It will be implemented via a per-device
Make variable DEVICE_COMPAT_VERSION, which will be set to 1.0
globally by default and then can be overwritten as needed.
Furthermore, a variable DEVICE_COMPAT_MESSAGE is added, where
a message to be displayed during sysupgrade may be specified
optionally.
This patch only implements the build variables and adds them
to the sysupgrade metadata, the evaluation will be addressed
in a subsequent patch.
To set it, one would just need to add the following to a device node:
define Device/somedevice
...
DEVICE_COMPAT_VERSION := 1.1
DEVICE_COMPAT_MESSAGE := Config cannot be migrated from swconfig to DSA
endef
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Diffstat (limited to 'include/image-commands.mk')
| -rw-r--r-- | include/image-commands.mk | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/image-commands.mk b/include/image-commands.mk index e7db7128b4..9da712e733 100644 --- a/include/image-commands.mk +++ b/include/image-commands.mk @@ -384,13 +384,16 @@ define Build/tplink-v2-image rm -rf $@.new endef +compat_version=$(if $(DEVICE_COMPAT_VERSION),$(DEVICE_COMPAT_VERSION),1.0) json_quote=$(subst ','\'',$(subst ",\",$(1))) #")') metadata_devices=$(if $(1),$(subst "$(space)","$(comma)",$(strip $(foreach v,$(1),"$(call json_quote,$(v))")))) metadata_json = \ '{ $(if $(IMAGE_METADATA),$(IMAGE_METADATA)$(comma)) \ "metadata_version": "1.0", \ - "supported_devices":[$(call metadata_devices,$(1))], \ + "compat_version": "$(call json_quote,$(compat_version))", \ + $(if $(DEVICE_COMPAT_MESSAGE),"compat_message": "$(call json_quote,$(DEVICE_COMPAT_MESSAGE))"$(comma)) \ + "supported_devices":[$(call metadata_devices,$(SUPPORTED_DEVICES))], \ "version": { \ "dist": "$(call json_quote,$(VERSION_DIST))", \ "version": "$(call json_quote,$(VERSION_NUMBER))", \ @@ -401,7 +404,7 @@ metadata_json = \ }' define Build/append-metadata - $(if $(SUPPORTED_DEVICES),-echo $(call metadata_json,$(SUPPORTED_DEVICES)) | fwtool -I - $@) + $(if $(SUPPORTED_DEVICES),-echo $(call metadata_json) | fwtool -I - $@) [ ! -s "$(BUILD_KEY)" -o ! -s "$(BUILD_KEY).ucert" -o ! -s "$@" ] || { \ cp "$(BUILD_KEY).ucert" "$@.ucert" ;\ usign -S -m "$@" -s "$(BUILD_KEY)" -x "$@.sig" ;\ |