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85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package targets
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"text/tabwriter"
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"github.com/moby/buildkit/frontend/gateway/client"
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"github.com/moby/buildkit/frontend/subrequests"
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"github.com/moby/buildkit/solver/pb"
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)
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const RequestTargets = "frontend.targets"
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var SubrequestsTargetsDefinition = subrequests.Request{
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Name: RequestTargets,
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Version: "1.0.0",
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Type: subrequests.TypeRPC,
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Description: "List all targets current build supports",
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Opts: []subrequests.Named{},
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Metadata: []subrequests.Named{
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{Name: "result.json"},
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{Name: "result.txt"},
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},
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}
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type List struct {
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Targets []Target `json:"targets"`
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Sources [][]byte `json:"sources"`
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}
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func (l List) ToResult() (*client.Result, error) {
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res := client.NewResult()
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dt, err := json.MarshalIndent(l, "", " ")
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if err != nil {
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return nil, err
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}
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res.AddMeta("result.json", dt)
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b := bytes.NewBuffer(nil)
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if err := PrintTargets(dt, b); err != nil {
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return nil, err
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}
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res.AddMeta("result.txt", b.Bytes())
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res.AddMeta("version", []byte(SubrequestsTargetsDefinition.Version))
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return res, nil
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}
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type Target struct {
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Name string `json:"name,omitempty"`
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Default bool `json:"default,omitempty"`
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Description string `json:"description,omitempty"`
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Base string `json:"base,omitempty"`
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Platform string `json:"platform,omitempty"`
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Location *pb.Location `json:"location,omitempty"`
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}
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func PrintTargets(dt []byte, w io.Writer) error {
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var l List
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if err := json.Unmarshal(dt, &l); err != nil {
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return err
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}
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tw := tabwriter.NewWriter(w, 0, 0, 1, ' ', 0)
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fmt.Fprintf(tw, "TARGET\tDESCRIPTION\n")
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for _, t := range l.Targets {
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name := t.Name
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if name == "" && t.Default {
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name = "(default)"
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} else {
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if t.Default {
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name = fmt.Sprintf("%s (default)", name)
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}
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}
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fmt.Fprintf(tw, "%s\t%s\n", name, t.Description)
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}
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return tw.Flush()
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}
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