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