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package outline
import (
"bytes"
"encoding/json"
"fmt"
"io"
"text/tabwriter"
"github.com/moby/buildkit/frontend/gateway/client"
"github.com/moby/buildkit/frontend/subrequests"
"github.com/moby/buildkit/solver/pb"
)
const RequestSubrequestsOutline = "frontend.outline"
var SubrequestsOutlineDefinition = subrequests.Request{
Name: RequestSubrequestsOutline,
Version: "1.0.0",
Type: subrequests.TypeRPC,
Description: "List all parameters current build target supports",
Opts: []subrequests.Named{
{
Name: "target",
Description: "Target build stage",
},
},
Metadata: []subrequests.Named{
{Name: "result.json"},
{Name: "result.txt"},
},
}
type Outline struct {
Name string `json:"name,omitempty"`
Description string `json:"description,omitempty"`
Args []Arg `json:"args,omitempty"`
Secrets []Secret `json:"secrets,omitempty"`
SSH []SSH `json:"ssh,omitempty"`
Cache []CacheMount `json:"cache,omitempty"`
Sources [][]byte `json:"sources,omitempty"`
}
func (o Outline) ToResult() (*client.Result, error) {
res := client.NewResult()
dt, err := json.MarshalIndent(o, "", " ")
if err != nil {
return nil, err
}
res.AddMeta("result.json", dt)
b := bytes.NewBuffer(nil)
if err := PrintOutline(dt, b); err != nil {
return nil, err
}
res.AddMeta("result.txt", b.Bytes())
res.AddMeta("version", []byte(SubrequestsOutlineDefinition.Version))
return res, nil
}
type Arg struct {
Name string `json:"name"`
Description string `json:"description,omitempty"`
Value string `json:"value,omitempty"`
Location *pb.Location `json:"location,omitempty"`
}
type Secret struct {
Name string `json:"name"`
Required bool `json:"required,omitempty"`
Location *pb.Location `json:"location,omitempty"`
}
type SSH struct {
Name string `json:"name"`
Required bool `json:"required,omitempty"`
Location *pb.Location `json:"location,omitempty"`
}
type CacheMount struct {
ID string `json:"ID"`
Location *pb.Location `json:"location,omitempty"`
}
func PrintOutline(dt []byte, w io.Writer) error {
var o Outline
if err := json.Unmarshal(dt, &o); err != nil {
return err
}
if o.Name != "" || o.Description != "" {
tw := tabwriter.NewWriter(w, 0, 0, 1, ' ', 0)
name := o.Name
if o.Name == "" {
name = "(default)"
}
fmt.Fprintf(tw, "TARGET:\t%s\n", name)
if o.Description != "" {
fmt.Fprintf(tw, "DESCRIPTION:\t%s\n", o.Description)
}
tw.Flush()
fmt.Fprintln(tw)
}
if len(o.Args) > 0 {
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
fmt.Fprintf(tw, "BUILD ARG\tVALUE\tDESCRIPTION\n")
for _, a := range o.Args {
fmt.Fprintf(tw, "%s\t%s\t%s\n", a.Name, a.Value, a.Description)
}
tw.Flush()
fmt.Fprintln(tw)
}
if len(o.Secrets) > 0 {
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
fmt.Fprintf(tw, "SECRET\tREQUIRED\n")
for _, s := range o.Secrets {
b := ""
if s.Required {
b = "true"
}
fmt.Fprintf(tw, "%s\t%s\n", s.Name, b)
}
tw.Flush()
fmt.Fprintln(tw)
}
if len(o.SSH) > 0 {
tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)
fmt.Fprintf(tw, "SSH\tREQUIRED\n")
for _, s := range o.SSH {
b := ""
if s.Required {
b = "true"
}
fmt.Fprintf(tw, "%s\t%s\n", s.Name, b)
}
tw.Flush()
fmt.Fprintln(tw)
}
return nil
}
|
