A simple `helloworld` for Golang in VsCode.

# Golang the compiler

Download Golang [installer](https://go.dev/dl/). A least on Mac the installer shall be able to deal with [updating OS](https://gist.github.com/Linerre/f11ad4a6a934dcf01ee8415c9457e7b2) `PATH` environment variable with `$GOPATH/bin`.

## Debugger

```bash
go install -v github.com/go-delve/delve/cmd/dlv@latest 
```

To install / update the goTools in VsCode:

Click `cmd`+`shift`+`p` and search for _Go: Install/Update tools_

# VsCode IDE

- Install [Visual Studio Code](https://code.visualstudio.com)
-  `golang` extension
  To launch *VS Code Quick Open* press (Ctrl + P), type: `ext install Go`,  hit enter. Follow basic instructions.

# The Project

Inside `Visual Studio Code` Open Folder `Ctrl + Shift + E` , e.g.: `$USER\code\hello\`.  Then Open `hello.go` from that folder. Or make new file (Ctrl + N) and save it on this folder:

```go
package main

import "fmt"

func main() {
	name := "World"
	fmt.Println(getGreeting(name))
}

func getGreeting(name string) string {
	return fmt.Sprintf("Hello, %s!", name)
}
```

Some useful hotkeys:
- `Ctrl + Shift + D` - Open Debugger
- `F9` - set or toggle Breakpoint. *Try this line `name := "World"`*
- `F5` - Start Debugging or to Run the Application. If asked to select environment: select `Go`
- `F10` -  Step Over
- `F11` - Step Into
- `Shift + F11` - Step Out
- `Shift + F5` - Stop Debugging
- `Ctrl + Shift + F5` - Restart Debugging

Typical aka untouched `launch.json`:

```json
{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "program": "${workspaceRoot}",
            "env": {},
            "args": [],
            "showLog": true,
        }
    ]
}
```

# Custom build task

Create `tasks.json`:

```json
{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "go build",
      "type": "shell",
      "command": "go build -o bin/tui ./...", 
      "group": "build",
      "problemMatcher": ["$go"],
    }
  ]
}
```

Add this line to the desired run command in your `launch.json`

```json
"preLaunchTask": "go build",
```