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package/pkg-golang: handle licensing terms for host-only packages

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The licensing terms are inherited from the target variant to the host
variant: when the host _LICENSE is empty, then the value of the target
_LICENSE is used.

However, for the golang infra, we want to append a little blurb about
vendored depndencies. If the package is a host-only, then it would
inherit the target _LICENSE, i.e. the variable without the leading
HOST_. If that is defined, this is inherited in the generic-package part
of the infra, but in the golang infra, we saw an empty variable, and so
we would not add the vendoring blurb.

We can't move the condition appending that blurb, after we called into
the generic-package infra, otherwise in that case, we'd have the
opposite issue for packages that are both target and host packages,
where the blurb would be duplicated for host packages...

Instead, we workaround the issue by duplicating the heuristic to inherit
the target value, from the generic- into the golang-package infra.

Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
This commit is contained in:
Yann E. MORIN 2023-11-02 17:09:23 +01:00 committed by Arnout Vandecappelle
parent 01a4614d10
commit aa87875b9f
1 changed files with 9 additions and 0 deletions
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9
package/pkg-golang.mk
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@ -91,6 +91,15 @@ $(2)_DL_ENV += \
GOPROXY=direct \
$$($(2)_GO_ENV)
# Because we append vendored info, we can't rely on the values being empty
# once we eventually get into the generic-package infra. So, we duplicate
# the heuristics here
ifndef $(2)_LICENSE
ifdef $(3)_LICENSE
$(2)_LICENSE = $$($(3)_LICENSE)
endif
endif
# Due to vendoring, it is pretty likely that not all licenses are
# listed in <pkg>_LICENSE. If the license is unset, it is "unknown"
# so adding unknowns to some unknown is still some other unkown,