werf/werf

package instruction

import (
    "context"
    "fmt"

    "github.com/moby/buildkit/frontend/dockerfile/instructions"

    "github.com/werf/werf/v2/pkg/buildah"
    "github.com/werf/werf/v2/pkg/container_backend"
)

type OnBuild struct {
    instructions.OnbuildCommand
}

func NewOnBuild(i instructions.OnbuildCommand) *OnBuild {
    return &OnBuild{OnbuildCommand: i}
}

func (i *OnBuild) UsesBuildContext() bool {
    return false
}

func (i *OnBuild) Apply(ctx context.Context, containerName string, drv buildah.Buildah, drvOpts buildah.CommonOpts, buildContextArchive container_backend.BuildContextArchiver) error {
    if err := drv.Config(ctx, containerName, buildah.ConfigOpts{CommonOpts: drvOpts, OnBuild: i.Expression}); err != nil {
        return fmt.Errorf("error setting onbuild %v for container %s: %w", i.Expression, containerName, err)
    }
    return nil
}