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cli_windows.go Normal file
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//go:build windows
// +build windows
package cli
/* The code in this file comes from the "github.com/evanw/esbuild/internal/logger" package.
MIT License
Copyright (c) 2020 Evan Wallace
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
import (
"os"
"syscall"
"unsafe"
)
const SupportsColorEscapes = true
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var getConsoleMode = kernel32.NewProc("GetConsoleMode")
var getConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
type consoleScreenBufferInfo struct {
dwSizeX int16
dwSizeY int16
dwCursorPositionX int16
dwCursorPositionY int16
wAttributes uint16
srWindowLeft int16
srWindowTop int16
srWindowRight int16
srWindowBottom int16
dwMaximumWindowSizeX int16
dwMaximumWindowSizeY int16
}
func GetTerminalInfo(file *os.File) TerminalInfo {
fd := file.Fd()
// Is this file descriptor a terminal?
var unused uint32
isTTY, _, _ := syscall.SyscallN(getConsoleMode.Addr(), fd, uintptr(unsafe.Pointer(&unused)))
// Get the width of the window
var info consoleScreenBufferInfo
syscall.SyscallN(getConsoleScreenBufferInfo.Addr(), fd, uintptr(unsafe.Pointer(&info)))
return TerminalInfo{
IsTTY: isTTY != 0,
Width: int(info.dwSizeX) - 1,
}
}
func errorStyle(*os.File) { }
func resetStyle(*os.File) { }