cli/internal/codespaces/states.go
2021-08-27 17:39:10 -04:00

101 lines
2.4 KiB
Go

package codespaces
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"strings"
"time"
"github.com/github/ghcs/api"
)
type PostCreateStateStatus string
func (p PostCreateStateStatus) String() string {
return strings.Title(string(p))
}
const (
PostCreateStateRunning PostCreateStateStatus = "running"
PostCreateStateSuccess PostCreateStateStatus = "succeeded"
PostCreateStateFailed PostCreateStateStatus = "failed"
)
type PostCreateStatesResult struct {
PostCreateStates []PostCreateState
Err error
}
type PostCreateState struct {
Name string `json:"name"`
Status PostCreateStateStatus `json:"status"`
}
func PollPostCreateStates(ctx context.Context, log logger, apiClient *api.API, user *api.User, codespace *api.Codespace, poller func([]PostCreateState)) error {
token, err := apiClient.GetCodespaceToken(ctx, user.Login, codespace.Name)
if err != nil {
return fmt.Errorf("getting codespace token: %v", err)
}
lsclient, err := ConnectToLiveshare(ctx, log, apiClient, user.Login, token, codespace)
if err != nil {
return fmt.Errorf("connect to liveshare: %v", err)
}
tunnelPort, connClosed, err := MakeSSHTunnel(ctx, lsclient, 0)
if err != nil {
return fmt.Errorf("make ssh tunnel: %v", err)
}
t := time.NewTicker(1 * time.Second)
for {
select {
case <-ctx.Done():
return nil
case err := <-connClosed:
return fmt.Errorf("connection closed: %v", err)
case <-t.C:
states, err := getPostCreateOutput(ctx, tunnelPort, codespace)
if err != nil {
return fmt.Errorf("get post create output: %v", err)
}
poller(states)
}
}
}
func getPostCreateOutput(ctx context.Context, tunnelPort int, codespace *api.Codespace) ([]PostCreateState, error) {
stdout, err := RunCommand(
ctx, tunnelPort, sshDestination(codespace),
"cat /workspaces/.codespaces/shared/postCreateOutput.json",
)
if err != nil {
return nil, fmt.Errorf("run command: %v", err)
}
defer stdout.Close()
b, err := ioutil.ReadAll(stdout)
if err != nil {
return nil, fmt.Errorf("read output: %v", err)
}
var output struct {
Steps []PostCreateState `json:"steps"`
}
if err := json.Unmarshal(b, &output); err != nil {
return nil, fmt.Errorf("unmarshal output: %v", err)
}
return output.Steps, nil
}
func sshDestination(codespace *api.Codespace) string {
user := "codespace"
if codespace.RepositoryNWO == "github/github" {
user = "root"
}
return user + "@localhost"
}