52 lines
1.0 KiB
Go
52 lines
1.0 KiB
Go
package dagger
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import (
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"context"
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"fmt"
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"os"
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cueflow "cuelang.org/go/tools/flow"
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)
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var ErrNotExist = os.ErrNotExist
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// Implemented by Component, Script, Op
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type Executable interface {
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Execute(context.Context, FS, *Fillable) (FS, error)
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Walk(context.Context, func(*Op) error) error
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}
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func newExecutable(v *Value) (Executable, error) {
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// NOTE: here we need full spec validation,
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// so we call NewScript, NewComponent, NewOp.
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if script, err := NewScript(v); err == nil {
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return script, nil
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}
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if component, err := NewComponent(v); err == nil {
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return component, nil
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}
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if op, err := NewOp(v); err == nil {
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return op, nil
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}
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return nil, fmt.Errorf("value is not executable")
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}
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// Something which can be filled in-place with a cue value
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type Fillable struct {
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t *cueflow.Task
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}
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func NewFillable(t *cueflow.Task) *Fillable {
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return &Fillable{
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t: t,
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}
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}
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func (f *Fillable) Fill(x interface{}) error {
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// Use a nil pointer receiver to discard all values
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if f == nil {
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return nil
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}
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return f.t.Fill(x)
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}
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