115 lines
2.7 KiB
Go
115 lines
2.7 KiB
Go
package codespace
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import (
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"context"
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"fmt"
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"github.com/cli/cli/v2/internal/codespaces"
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"github.com/cli/cli/v2/internal/codespaces/portforwarder"
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"github.com/cli/cli/v2/internal/codespaces/rpc"
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"github.com/spf13/cobra"
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)
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func newLogsCmd(app *App) *cobra.Command {
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var (
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selector *CodespaceSelector
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follow bool
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)
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logsCmd := &cobra.Command{
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Use: "logs",
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Short: "Access codespace logs",
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Args: noArgsConstraint,
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RunE: func(cmd *cobra.Command, args []string) error {
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return app.Logs(cmd.Context(), selector, follow)
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},
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}
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selector = AddCodespaceSelector(logsCmd, app.apiClient)
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logsCmd.Flags().BoolVarP(&follow, "follow", "f", false, "Tail and follow the logs")
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return logsCmd
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}
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func (a *App) Logs(ctx context.Context, selector *CodespaceSelector, follow bool) (err error) {
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// Ensure all child tasks (port forwarding, remote exec) terminate before return.
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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codespace, err := selector.Select(ctx)
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if err != nil {
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return err
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}
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codespaceConnection, err := codespaces.GetCodespaceConnection(ctx, a, a.apiClient, codespace)
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if err != nil {
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return fmt.Errorf("error connecting to codespace: %w", err)
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}
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fwd, err := portforwarder.NewPortForwarder(ctx, codespaceConnection)
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if err != nil {
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return fmt.Errorf("failed to create port forwarder: %w", err)
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}
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defer safeClose(fwd, &err)
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// Ensure local port is listening before client (getPostCreateOutput) connects.
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listen, localPort, err := codespaces.ListenTCP(0, false)
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if err != nil {
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return err
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}
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defer listen.Close()
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remoteSSHServerPort, sshUser := 0, ""
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err = a.RunWithProgress("Fetching SSH Details", func() (err error) {
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invoker, err := rpc.CreateInvoker(ctx, fwd)
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if err != nil {
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return
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}
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defer safeClose(invoker, &err)
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remoteSSHServerPort, sshUser, err = invoker.StartSSHServer(ctx)
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return
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})
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if err != nil {
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return fmt.Errorf("error getting ssh server details: %w", err)
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}
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cmdType := "cat"
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if follow {
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cmdType = "tail -f"
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}
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dst := fmt.Sprintf("%s@localhost", sshUser)
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cmd, err := codespaces.NewRemoteCommand(
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ctx, localPort, dst, fmt.Sprintf("%s /workspaces/.codespaces/.persistedshare/creation.log", cmdType),
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)
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if err != nil {
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return fmt.Errorf("remote command: %w", err)
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}
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tunnelClosed := make(chan error, 1)
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go func() {
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opts := portforwarder.ForwardPortOpts{
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Port: remoteSSHServerPort,
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Internal: true,
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}
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tunnelClosed <- fwd.ForwardPortToListener(ctx, opts, listen)
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}()
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cmdDone := make(chan error, 1)
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go func() {
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cmdDone <- cmd.Run()
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}()
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select {
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case err := <-tunnelClosed:
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return fmt.Errorf("connection closed: %w", err)
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case err := <-cmdDone:
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if err != nil {
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return fmt.Errorf("error retrieving logs: %w", err)
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}
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return nil // success
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}
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}
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