tree 7e45239ca47a3572cfd7f120421b736d886555e6
parent 12bcfa5e9b104e2fceaf6a5207af0f718b01d96a
author Jiyong Park <jiyong@google.com> 1564397955 +0900
committer Jiyong Park <jiyong@google.com> 1565930744 +0900

Add SetDefaultDependencyVariation

SetDefaultDependencyVariation sets the variation name that will be used
when a dangling dependency is found while a module is being split. A
dangling dependency can occur if a module is split to a variant that one
of its dependencies is not split into. When the default variation is not
set, such dangling dependency is a hard error. But with the new
function, the default variation can be set and subsequent calls to
CreateVariations and its variations on the same context uses the default
variation when necessary.

(If even the default variation does not exist for the dependent module,
it is an hard error)

Note that this is different from calling SetDependencyVariation("foo")
followed by CreateVariations("foo", "bar"). In that case, regardless of
whether a dependency of the current module has the variant 'bar' or not,
only the 'foo' variant is chosen.

With SetDefaultDependencyVariation("foo") followed by
CreateVariations("foo", "bar"), 'foo' variant is used only when the
'bar' variant of the current module depends on a module that does not
have 'bar' variant.

Bug: 138103882
Test: m
Merged-In: I2c79c3c9e0437fd785b06ca20f43da2963d50b68
(cherry picked from commit 1e2e56dc624bd93845288d803be588c597f0bd6f)
Change-Id: I4520ca87487994de024fdbacda3bef6636225f0d