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mirror of https://github.com/beego/bee.git synced 2024-11-22 10:10:53 +00:00
This makes sure dlv is used for amd64 architecture. The current release
has a few problems with darwin architecture hence the conditional build
tag.
This commit is contained in:
Faissal Elamraoui 2017-03-26 16:57:19 +02:00
parent 4dd6983d3c
commit 5600cb1c36
2 changed files with 137 additions and 134 deletions

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@ -1,135 +1 @@
// Copyright 2017 bee authors
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
// Package dlv ...
package dlv package dlv
import (
"flag"
"fmt"
"net"
"os"
"path/filepath"
"github.com/beego/bee/cmd/commands"
"github.com/beego/bee/cmd/commands/version"
beeLogger "github.com/beego/bee/logger"
"github.com/beego/bee/utils"
"github.com/derekparker/delve/pkg/terminal"
"github.com/derekparker/delve/service"
"github.com/derekparker/delve/service/rpc2"
"github.com/derekparker/delve/service/rpccommon"
)
var cmdDlv = &commands.Command{
CustomFlags: true,
UsageLine: "dlv [-package=\"\"] [-port=8181]",
Short: "Start a debugging session using Delve",
Long: `dlv command start a debugging session using debugging tool Delve.
To debug your application using Delve, use: {{"$ bee dlv" | bold}}
For more information on Delve: https://github.com/derekparker/delve
`,
PreRun: func(cmd *commands.Command, args []string) { version.ShowShortVersionBanner() },
Run: runDlv,
}
var (
packageName string
port int
)
func init() {
fs := flag.NewFlagSet("dlv", flag.ContinueOnError)
fs.IntVar(&port, "port", 8181, "Port to listen to for clients")
fs.StringVar(&packageName, "package", "", "The package to debug (Must have a main package)")
cmdDlv.Flag = *fs
commands.AvailableCommands = append(commands.AvailableCommands, cmdDlv)
}
func runDlv(cmd *commands.Command, args []string) int {
if err := cmd.Flag.Parse(args); err != nil {
beeLogger.Log.Fatalf("Error parsing flags: %v", err.Error())
}
debugname := "debug"
addr := fmt.Sprintf("127.0.0.1:%d", port)
return runDelve(addr, debugname)
}
// runDelve runs the Delve debugger server
func runDelve(addr, debugname string) int {
beeLogger.Log.Info("Starting Delve Debugger...")
err := gobuild(debugname, packageName)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
fp, err := filepath.Abs("./" + debugname)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
defer os.Remove(fp)
abs, err := filepath.Abs(debugname)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
// Create and start the debugger server
listener, err := net.Listen("tcp", addr)
if err != nil {
beeLogger.Log.Fatalf("Could not start listener: %s", err)
}
defer listener.Close()
server := rpccommon.NewServer(&service.Config{
Listener: listener,
AcceptMulti: true,
AttachPid: 0,
APIVersion: 2,
WorkingDir: "./",
ProcessArgs: []string{abs},
}, false)
if err := server.Run(); err != nil {
beeLogger.Log.Fatalf("Could not start debugger server: %v", err)
}
// Start the Delve client REPL
client := rpc2.NewClient(addr)
term := terminal.New(client, nil)
status, err := term.Run()
if err != nil {
beeLogger.Log.Fatalf("Could not start Delve REPL: %v", err)
}
defer term.Close()
// Stop and kill the debugger server once
// user quits the REPL
if err := server.Stop(true); err != nil {
beeLogger.Log.Fatalf("Could not stop Delve server: %v", err)
}
return status
}
// gobuild runs the "go build" command on the specified package
func gobuild(debugname, pkg string) error {
args := []string{"-gcflags", "-N -l", "-o", debugname}
args = append(args, utils.SplitQuotedFields("-ldflags='-linkmode internal'")...)
args = append(args, pkg)
return utils.GoCommand("build", args...)
}

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@ -0,0 +1,137 @@
// Copyright 2017 bee authors
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
// +build !darwin
// Package dlv ...
package dlv
import (
"flag"
"fmt"
"net"
"os"
"path/filepath"
"github.com/beego/bee/cmd/commands"
"github.com/beego/bee/cmd/commands/version"
beeLogger "github.com/beego/bee/logger"
"github.com/beego/bee/utils"
"github.com/derekparker/delve/service"
"github.com/derekparker/delve/service/rpc2"
"github.com/derekparker/delve/service/rpccommon"
"github.com/derekparker/delve/terminal"
)
var cmdDlv = &commands.Command{
CustomFlags: true,
UsageLine: "dlv [-package=\"\"] [-port=8181]",
Short: "Start a debugging session using Delve",
Long: `dlv command start a debugging session using debugging tool Delve.
To debug your application using Delve, use: {{"$ bee dlv" | bold}}
For more information on Delve: https://github.com/derekparker/delve
`,
PreRun: func(cmd *commands.Command, args []string) { version.ShowShortVersionBanner() },
Run: runDlv,
}
var (
packageName string
port int
)
func init() {
fs := flag.NewFlagSet("dlv", flag.ContinueOnError)
fs.IntVar(&port, "port", 8181, "Port to listen to for clients")
fs.StringVar(&packageName, "package", "", "The package to debug (Must have a main package)")
cmdDlv.Flag = *fs
commands.AvailableCommands = append(commands.AvailableCommands, cmdDlv)
}
func runDlv(cmd *commands.Command, args []string) int {
if err := cmd.Flag.Parse(args); err != nil {
beeLogger.Log.Fatalf("Error parsing flags: %v", err.Error())
}
debugname := "debug"
addr := fmt.Sprintf("127.0.0.1:%d", port)
return runDelve(addr, debugname)
}
// runDelve runs the Delve debugger server
func runDelve(addr, debugname string) int {
beeLogger.Log.Info("Starting Delve Debugger...")
err := gobuild(debugname, packageName)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
fp, err := filepath.Abs("./" + debugname)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
defer os.Remove(fp)
abs, err := filepath.Abs(debugname)
if err != nil {
beeLogger.Log.Fatalf("%v", err)
}
// Create and start the debugger server
listener, err := net.Listen("tcp", addr)
if err != nil {
beeLogger.Log.Fatalf("Could not start listener: %s", err)
}
defer listener.Close()
server := rpccommon.NewServer(&service.Config{
Listener: listener,
AcceptMulti: true,
AttachPid: 0,
APIVersion: 2,
WorkingDir: "./",
ProcessArgs: []string{abs},
}, false)
if err := server.Run(); err != nil {
beeLogger.Log.Fatalf("Could not start debugger server: %v", err)
}
// Start the Delve client REPL
client := rpc2.NewClient(addr)
term := terminal.New(client, nil)
status, err := term.Run()
if err != nil {
beeLogger.Log.Fatalf("Could not start Delve REPL: %v", err)
}
defer term.Close()
// Stop and kill the debugger server once
// user quits the REPL
if err := server.Stop(true); err != nil {
beeLogger.Log.Fatalf("Could not stop Delve server: %v", err)
}
return status
}
// gobuild runs the "go build" command on the specified package
func gobuild(debugname, pkg string) error {
args := []string{"-gcflags", "-N -l", "-o", debugname}
args = append(args, utils.SplitQuotedFields("-ldflags='-linkmode internal'")...)
args = append(args, pkg)
return utils.GoCommand("build", args...)
}