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authorAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-07-09 19:14:45 +0200
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-07-31 11:40:15 +0200
commit6867d86e085dd4a284c8ee8878839c9e77546f46 (patch)
tree9b854ef3d4dcfc10b991bcf88862175fc499e3f2 /package
parent84cb0f7ace73fad15e29e1d74c469b37f90b334d (diff)
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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>
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