49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package dagger
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import (
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"context"
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"fmt"
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"github.com/moby/buildkit/client/llb"
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"github.com/pkg/errors"
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)
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type Mount struct {
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dest string
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v *Value
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}
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func newMount(v *Value, dest string) (*Mount, error) {
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if !v.Exists() {
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return nil, ErrNotExist
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}
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return &Mount{
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v: v,
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dest: dest,
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}, nil
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}
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func (mnt *Mount) Validate(defs ...string) error {
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return mnt.v.Validate(append(defs, "#Mount")...)
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}
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func (mnt *Mount) LLB(ctx context.Context, s Solver) (llb.RunOption, error) {
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if err := mnt.Validate("#MountTmp"); err == nil {
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return llb.AddMount(mnt.dest, llb.Scratch(), llb.Tmpfs()), nil
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}
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if err := mnt.Validate("#MountCache"); err == nil {
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// FIXME: cache mount
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return nil, fmt.Errorf("FIXME: cache mount not yet implemented")
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}
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// Compute source component or script, discarding fs writes & output value
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from, err := newExecutable(mnt.v.Lookup("from"))
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if err != nil {
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return nil, errors.Wrap(err, "from")
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}
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fromFS, err := from.Execute(ctx, s.Scratch(), nil)
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if err != nil {
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return nil, err
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}
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return llb.AddMount(mnt.dest, fromFS.LLB()), nil
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}
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