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package dockerfile2llb
import (
"github.com/containerd/platforms"
"github.com/moby/buildkit/frontend/dockerfile/instructions"
ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
)
type platformOpt struct {
targetPlatform ocispecs.Platform
buildPlatforms []ocispecs.Platform
implicitTarget bool
}
func buildPlatformOpt(opt *ConvertOpt) *platformOpt {
buildPlatforms := opt.BuildPlatforms
targetPlatform := opt.TargetPlatform
implicitTargetPlatform := false
if opt.TargetPlatform != nil && opt.BuildPlatforms == nil {
buildPlatforms = []ocispecs.Platform{*opt.TargetPlatform}
}
if len(buildPlatforms) == 0 {
buildPlatforms = []ocispecs.Platform{platforms.DefaultSpec()}
}
if opt.TargetPlatform == nil {
implicitTargetPlatform = true
targetPlatform = &buildPlatforms[0]
}
return &platformOpt{
targetPlatform: *targetPlatform,
buildPlatforms: buildPlatforms,
implicitTarget: implicitTargetPlatform,
}
}
func getPlatformArgs(po *platformOpt) []instructions.KeyValuePairOptional {
bp := po.buildPlatforms[0]
tp := po.targetPlatform
m := map[string]string{
"BUILDPLATFORM": platforms.Format(bp),
"BUILDOS": bp.OS,
"BUILDARCH": bp.Architecture,
"BUILDVARIANT": bp.Variant,
"TARGETPLATFORM": platforms.Format(tp),
"TARGETOS": tp.OS,
"TARGETARCH": tp.Architecture,
"TARGETVARIANT": tp.Variant,
}
opts := make([]instructions.KeyValuePairOptional, 0, len(m))
for k, v := range m {
s := v
opts = append(opts, instructions.KeyValuePairOptional{Key: k, Value: &s})
}
return opts
}
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