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dagger/plan/task/diff.go

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package task
import (
"context"
"github.com/moby/buildkit/client/llb"
"go.dagger.io/dagger/compiler"
"go.dagger.io/dagger/plancontext"
"go.dagger.io/dagger/solver"
)
func init() {
Register("Diff", func() Task { return &diffTask{} })
}
type diffTask struct {
}
func (t *diffTask) Run(ctx context.Context, pctx *plancontext.Context, s *solver.Solver, v *compiler.Value) (*compiler.Value, error) {
lowerFS, err := pctx.FS.FromValue(v.Lookup("lower"))
if err != nil {
return nil, err
}
lower, err := lowerFS.State()
if err != nil {
return nil, err
}
upperFS, err := pctx.FS.FromValue(v.Lookup("upper"))
if err != nil {
return nil, err
}
upper, err := upperFS.State()
if err != nil {
return nil, err
}
st := llb.Diff(lower, upper)
result, err := s.Solve(ctx, st, pctx.Platform.Get())
if err != nil {
return nil, err
}
fs := pctx.FS.New(result)
return compiler.NewValue().FillFields(map[string]interface{}{
"output": fs.MarshalCUE(),
})
}