Add support for --@io_bazel_rules_go//go/toolchain:sdk_version flag. (#3260)
- Each go_sdk now has config_settings that specify different values of
sdk_version. Eg. a go1.17.3 SDK would declare a config_setting for
sdk_version=1.17, sdk_version=1.17.3, and sdk_version="".
- Then each toolchain that is registered for an SDK will have a
config_setting_group constraint that combines the above
config_settings. In the example given above, the go1.17.3 SDK would
have a toolchain that only gets selected if sdk_version is 1.17,
1.17.3 or the empty string (default).
- If sdk_version flag is not specified, then all SDKs can be selected
because of the inclusion of the empty string config_setting in the
config_setting_group.
Signed-off-by: James Bartlett <jamesbartlett@newrelic.com>
Signed-off-by: James Bartlett <jamesbartlett@newrelic.com>
7 files changed
