68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
|
package file
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
|
||
|
|
"github.com/moby/buildkit/cache"
|
||
|
|
"github.com/moby/buildkit/snapshot"
|
||
|
|
"github.com/moby/buildkit/solver/llbsolver/ops/fileoptypes"
|
||
|
|
"github.com/pkg/errors"
|
||
|
|
)
|
||
|
|
|
||
|
|
type RefManager struct {
|
||
|
|
cm cache.Manager
|
||
|
|
}
|
||
|
|
|
||
|
|
func (rm *RefManager) Prepare(ctx context.Context, ref fileoptypes.Ref, readonly bool) (fileoptypes.Mount, error) {
|
||
|
|
ir, ok := ref.(cache.ImmutableRef)
|
||
|
|
if !ok {
|
||
|
|
return nil, errors.Errorf("invalid ref type: %T", ref)
|
||
|
|
}
|
||
|
|
|
||
|
|
if ir != nil && readonly {
|
||
|
|
m, err := ir.Mount(ctx, readonly)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return &Mount{m: m}, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
mr, err := rm.cm.New(ctx, ir, cache.WithDescription("fileop target"))
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
m, err := mr.Mount(ctx, readonly)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return &Mount{m: m, mr: mr}, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (rm *RefManager) Commit(ctx context.Context, mount fileoptypes.Mount) (fileoptypes.Ref, error) {
|
||
|
|
m, ok := mount.(*Mount)
|
||
|
|
if !ok {
|
||
|
|
return nil, errors.Errorf("invalid mount type %T", mount)
|
||
|
|
}
|
||
|
|
if err := m.Release(context.TODO()); err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
if m.mr == nil {
|
||
|
|
return nil, errors.Errorf("invalid mount without active ref for commit")
|
||
|
|
}
|
||
|
|
return m.mr.Commit(ctx)
|
||
|
|
}
|
||
|
|
|
||
|
|
type Mount struct {
|
||
|
|
m snapshot.Mountable
|
||
|
|
mr cache.MutableRef
|
||
|
|
}
|
||
|
|
|
||
|
|
func (m *Mount) Release(ctx context.Context) error {
|
||
|
|
m.m.Release()
|
||
|
|
if m.mr != nil {
|
||
|
|
return m.mr.Release(ctx)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
func (m *Mount) IsFileOpMount() {}
|