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cmd/dlv: Add ability to connect to headless server

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Fixes #201. Use to connect to a running headless server
This commit is contained in:
Tyler Bunnell 2015-08-10 15:25:57 -06:00 committed by Derek Parker
parent 5d489bef99
commit 96dd44bd6e
1 changed files with 34 additions and 2 deletions
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36
cmd/dlv/main.go
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@ -58,7 +58,7 @@ The goal of this tool is to provide a simple yet powerful interface for debuggin
runCommand := &cobra.Command{
Use: "run",
Short: "Compile and begin debugging program.",
Long: `Compiles your program with optimizations disabled,
Long: `Compiles your program with optimizations disabled,
starts and attaches to it, and enables you to immediately begin debugging your program.`,
Run: func(cmd *cobra.Command, args []string) {
status := func() int {
@ -179,7 +179,7 @@ starts and attaches to it, and enables you to immediately begin debugging your p
testCommand := &cobra.Command{
Use: "test",
Short: "Compile test binary and begin debugging program.",
Long: `Compiles a test binary with optimizations disabled,
Long: `Compiles a test binary with optimizations disabled,
starts and attaches to it, and enable you to immediately begin debugging your program.`,
Run: func(cmd *cobra.Command, args []string) {
status := func() int {
@ -222,9 +222,41 @@ starts and attaches to it, and enable you to immediately begin debugging your pr
}
rootCommand.AddCommand(attachCommand)
// 'connect' subcommand.
connectCommand := &cobra.Command{
Use: "connect [addr]",
Short: "Connect to a headless debug server.",
Long: "Connect to a headless debug server.",
Run: func(cmd *cobra.Command, args []string) {
if len(args) == 0 {
fmt.Fprintf(os.Stderr, "An address was not provided. You must provide an address as the first argument.\n")
os.Exit(1)
}
addr := args[0]
if addr == "" {
fmt.Fprintf(os.Stderr, "An empty address was provided. You must provide an address as the first argument.\n")
os.Exit(1)
}
os.Exit(connect(addr))
},
}
rootCommand.AddCommand(connectCommand)
rootCommand.Execute()
}
func connect(addr string) int {
// Create and start a terminal - attach to running instance
var client service.Client
client = rpc.NewClient(addr)
term := terminal.New(client)
err, status := term.Run()
if err != nil {
fmt.Println(err)
}
return status
}
func execute(attachPid int, processArgs []string) int {
// Make a TCP listener
listener, err := net.Listen("tcp", Addr)