You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package subrequests
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
"text/tabwriter"
|
|
|
|
"github.com/moby/buildkit/frontend/gateway/client"
|
|
gwpb "github.com/moby/buildkit/frontend/gateway/pb"
|
|
"github.com/moby/buildkit/solver/errdefs"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
const RequestSubrequestsDescribe = "frontend.subrequests.describe"
|
|
|
|
var SubrequestsDescribeDefinition = Request{
|
|
Name: RequestSubrequestsDescribe,
|
|
Version: "1.0.0",
|
|
Type: TypeRPC,
|
|
Description: "List available subrequest types",
|
|
Metadata: []Named{
|
|
{Name: "result.json"},
|
|
{Name: "result.txt"},
|
|
},
|
|
}
|
|
|
|
func Describe(ctx context.Context, c client.Client) ([]Request, error) {
|
|
gwcaps := c.BuildOpts().Caps
|
|
|
|
if err := (&gwcaps).Supports(gwpb.CapFrontendCaps); err != nil {
|
|
return nil, errdefs.NewUnsupportedSubrequestError(RequestSubrequestsDescribe)
|
|
}
|
|
|
|
res, err := c.Solve(ctx, client.SolveRequest{
|
|
FrontendOpt: map[string]string{
|
|
"requestid": RequestSubrequestsDescribe,
|
|
"frontend.caps": "moby.buildkit.frontend.subrequests",
|
|
},
|
|
Frontend: "dockerfile.v0",
|
|
})
|
|
if err != nil {
|
|
var reqErr *errdefs.UnsupportedSubrequestError
|
|
if errors.As(err, &reqErr) {
|
|
return nil, err
|
|
}
|
|
var capErr *errdefs.UnsupportedFrontendCapError
|
|
if errors.As(err, &capErr) {
|
|
return nil, errdefs.NewUnsupportedSubrequestError(RequestSubrequestsDescribe)
|
|
}
|
|
return nil, err
|
|
}
|
|
|
|
dt, ok := res.Metadata["result.json"]
|
|
if !ok {
|
|
return nil, errors.Errorf("no result.json metadata in response")
|
|
}
|
|
|
|
var reqs []Request
|
|
if err := json.Unmarshal(dt, &reqs); err != nil {
|
|
return nil, errors.Wrap(err, "failed to parse describe result")
|
|
}
|
|
return reqs, nil
|
|
}
|
|
|
|
func PrintDescribe(dt []byte, w io.Writer) error {
|
|
var d []Request
|
|
if err := json.Unmarshal(dt, &d); err != nil {
|
|
return err
|
|
}
|
|
|
|
tw := tabwriter.NewWriter(w, 0, 0, 1, ' ', 0)
|
|
fmt.Fprintf(tw, "NAME\tVERSION\tDESCRIPTION\n")
|
|
|
|
for _, r := range d {
|
|
fmt.Fprintf(tw, "%s\t%s\t%s\n", strings.TrimPrefix(r.Name, "frontend."), r.Version, r.Description)
|
|
}
|
|
return tw.Flush()
|
|
}
|