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Lint pkg/term/windows package

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Signed-off-by: Vincent Demeester <vincent@sbr.pm>
This commit is contained in:
Vincent Demeester 2015-09-03 22:01:56 +02:00
parent d9065fcdb5
commit 3409de971c
4 changed files with 70 additions and 69 deletions
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1
hack/make/validate-lint
View file

@ -88,6 +88,7 @@ packages=(
pkg/tailfile
pkg/tarsum
pkg/term
pkg/term/windows
pkg/timeoutconn
pkg/timeutils
pkg/tlsconfig

112
pkg/term/windows/ansi_reader.go
View file

@ -10,8 +10,8 @@ import (
"strings"
"unsafe"
. "github.com/Azure/go-ansiterm"
. "github.com/Azure/go-ansiterm/winterm"
ansiterm "github.com/Azure/go-ansiterm"
"github.com/Azure/go-ansiterm/winterm"
)
// ansiReader wraps a standard input file (e.g., os.Stdin) providing ANSI sequence translation.
@ -26,12 +26,12 @@ type ansiReader struct {
}
func newAnsiReader(nFile int) *ansiReader {
file, fd := GetStdFile(nFile)
file, fd := winterm.GetStdFile(nFile)
return &ansiReader{
file: file,
fd: fd,
command: make([]byte, 0, ANSI_MAX_CMD_LENGTH),
escapeSequence: []byte(KEY_ESC_CSI),
command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH),
escapeSequence: []byte(ansiterm.KEY_ESC_CSI),
buffer: make([]byte, 0),
}
}
@ -101,28 +101,28 @@ func (ar *ansiReader) Read(p []byte) (int, error) {
}
// readInputEvents polls until at least one event is available.
func readInputEvents(fd uintptr, maxBytes int) ([]INPUT_RECORD, error) {
func readInputEvents(fd uintptr, maxBytes int) ([]winterm.INPUT_RECORD, error) {
// Determine the maximum number of records to retrieve
// -- Cast around the type system to obtain the size of a single INPUT_RECORD.
// unsafe.Sizeof requires an expression vs. a type-reference; the casting
// tricks the type system into believing it has such an expression.
recordSize := int(unsafe.Sizeof(*((*INPUT_RECORD)(unsafe.Pointer(&maxBytes)))))
recordSize := int(unsafe.Sizeof(*((*winterm.INPUT_RECORD)(unsafe.Pointer(&maxBytes)))))
countRecords := maxBytes / recordSize
if countRecords > MAX_INPUT_EVENTS {
countRecords = MAX_INPUT_EVENTS
if countRecords > ansiterm.MAX_INPUT_EVENTS {
countRecords = ansiterm.MAX_INPUT_EVENTS
}
logger.Debugf("[windows] readInputEvents: Reading %v records (buffer size %v, record size %v)", countRecords, maxBytes, recordSize)
// Wait for and read input events
events := make([]INPUT_RECORD, countRecords)
events := make([]winterm.INPUT_RECORD, countRecords)
nEvents := uint32(0)
eventsExist, err := WaitForSingleObject(fd, WAIT_INFINITE)
eventsExist, err := winterm.WaitForSingleObject(fd, winterm.WAIT_INFINITE)
if err != nil {
return nil, err
}
if eventsExist {
err = ReadConsoleInput(fd, events, &nEvents)
err = winterm.ReadConsoleInput(fd, events, &nEvents)
if err != nil {
return nil, err
}
@ -135,43 +135,43 @@ func readInputEvents(fd uintptr, maxBytes int) ([]INPUT_RECORD, error) {
// KeyEvent Translation Helpers
var arrowKeyMapPrefix = map[WORD]string{
VK_UP: "%s%sA",
VK_DOWN: "%s%sB",
VK_RIGHT: "%s%sC",
VK_LEFT: "%s%sD",
var arrowKeyMapPrefix = map[winterm.WORD]string{
winterm.VK_UP: "%s%sA",
winterm.VK_DOWN: "%s%sB",
winterm.VK_RIGHT: "%s%sC",
winterm.VK_LEFT: "%s%sD",
}
var keyMapPrefix = map[WORD]string{
VK_UP: "\x1B[%sA",
VK_DOWN: "\x1B[%sB",
VK_RIGHT: "\x1B[%sC",
VK_LEFT: "\x1B[%sD",
VK_HOME: "\x1B[1%s~", // showkey shows ^[[1
VK_END: "\x1B[4%s~", // showkey shows ^[[4
VK_INSERT: "\x1B[2%s~",
VK_DELETE: "\x1B[3%s~",
VK_PRIOR: "\x1B[5%s~",
VK_NEXT: "\x1B[6%s~",
VK_F1: "",
VK_F2: "",
VK_F3: "\x1B[13%s~",
VK_F4: "\x1B[14%s~",
VK_F5: "\x1B[15%s~",
VK_F6: "\x1B[17%s~",
VK_F7: "\x1B[18%s~",
VK_F8: "\x1B[19%s~",
VK_F9: "\x1B[20%s~",
VK_F10: "\x1B[21%s~",
VK_F11: "\x1B[23%s~",
VK_F12: "\x1B[24%s~",
var keyMapPrefix = map[winterm.WORD]string{
winterm.VK_UP: "\x1B[%sA",
winterm.VK_DOWN: "\x1B[%sB",
winterm.VK_RIGHT: "\x1B[%sC",
winterm.VK_LEFT: "\x1B[%sD",
winterm.VK_HOME: "\x1B[1%s~", // showkey shows ^[[1
winterm.VK_END: "\x1B[4%s~", // showkey shows ^[[4
winterm.VK_INSERT: "\x1B[2%s~",
winterm.VK_DELETE: "\x1B[3%s~",
winterm.VK_PRIOR: "\x1B[5%s~",
winterm.VK_NEXT: "\x1B[6%s~",
winterm.VK_F1: "",
winterm.VK_F2: "",
winterm.VK_F3: "\x1B[13%s~",
winterm.VK_F4: "\x1B[14%s~",
winterm.VK_F5: "\x1B[15%s~",
winterm.VK_F6: "\x1B[17%s~",
winterm.VK_F7: "\x1B[18%s~",
winterm.VK_F8: "\x1B[19%s~",
winterm.VK_F9: "\x1B[20%s~",
winterm.VK_F10: "\x1B[21%s~",
winterm.VK_F11: "\x1B[23%s~",
winterm.VK_F12: "\x1B[24%s~",
}
// translateKeyEvents converts the input events into the appropriate ANSI string.
func translateKeyEvents(events []INPUT_RECORD, escapeSequence []byte) []byte {
func translateKeyEvents(events []winterm.INPUT_RECORD, escapeSequence []byte) []byte {
var buffer bytes.Buffer
for _, event := range events {
if event.EventType == KEY_EVENT && event.KeyEvent.KeyDown != 0 {
if event.EventType == winterm.KEY_EVENT && event.KeyEvent.KeyDown != 0 {
buffer.WriteString(keyToString(&event.KeyEvent, escapeSequence))
}
}
@ -180,7 +180,7 @@ func translateKeyEvents(events []INPUT_RECORD, escapeSequence []byte) []byte {
}
// keyToString maps the given input event record to the corresponding string.
func keyToString(keyEvent *KEY_EVENT_RECORD, escapeSequence []byte) string {
func keyToString(keyEvent *winterm.KEY_EVENT_RECORD, escapeSequence []byte) string {
if keyEvent.UnicodeChar == 0 {
return formatVirtualKey(keyEvent.VirtualKeyCode, keyEvent.ControlKeyState, escapeSequence)
}
@ -199,14 +199,14 @@ func keyToString(keyEvent *KEY_EVENT_RECORD, escapeSequence []byte) string {
// <Alt>+Key generates ESC N Key
if !control && alt {
return KEY_ESC_N + strings.ToLower(string(keyEvent.UnicodeChar))
return ansiterm.KEY_ESC_N + strings.ToLower(string(keyEvent.UnicodeChar))
}
return string(keyEvent.UnicodeChar)
}
// formatVirtualKey converts a virtual key (e.g., up arrow) into the appropriate ANSI string.
func formatVirtualKey(key WORD, controlState DWORD, escapeSequence []byte) string {
func formatVirtualKey(key winterm.WORD, controlState winterm.DWORD, escapeSequence []byte) string {
shift, alt, control := getControlKeys(controlState)
modifier := getControlKeysModifier(shift, alt, control, false)
@ -222,35 +222,35 @@ func formatVirtualKey(key WORD, controlState DWORD, escapeSequence []byte) strin
}
// getControlKeys extracts the shift, alt, and ctrl key states.
func getControlKeys(controlState DWORD) (shift, alt, control bool) {
shift = 0 != (controlState & SHIFT_PRESSED)
alt = 0 != (controlState & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
control = 0 != (controlState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
func getControlKeys(controlState winterm.DWORD) (shift, alt, control bool) {
shift = 0 != (controlState & winterm.SHIFT_PRESSED)
alt = 0 != (controlState & (winterm.LEFT_ALT_PRESSED | winterm.RIGHT_ALT_PRESSED))
control = 0 != (controlState & (winterm.LEFT_CTRL_PRESSED | winterm.RIGHT_CTRL_PRESSED))
return shift, alt, control
}
// getControlKeysModifier returns the ANSI modifier for the given combination of control keys.
func getControlKeysModifier(shift, alt, control, meta bool) string {
if shift && alt && control {
return KEY_CONTROL_PARAM_8
return ansiterm.KEY_CONTROL_PARAM_8
}
if alt && control {
return KEY_CONTROL_PARAM_7
return ansiterm.KEY_CONTROL_PARAM_7
}
if shift && control {
return KEY_CONTROL_PARAM_6
return ansiterm.KEY_CONTROL_PARAM_6
}
if control {
return KEY_CONTROL_PARAM_5
return ansiterm.KEY_CONTROL_PARAM_5
}
if shift && alt {
return KEY_CONTROL_PARAM_4
return ansiterm.KEY_CONTROL_PARAM_4
}
if alt {
return KEY_CONTROL_PARAM_3
return ansiterm.KEY_CONTROL_PARAM_3
}
if shift {
return KEY_CONTROL_PARAM_2
return ansiterm.KEY_CONTROL_PARAM_2
}
return ""
}

20
pkg/term/windows/ansi_writer.go
View file

@ -6,8 +6,8 @@ import (
"io/ioutil"
"os"
. "github.com/Azure/go-ansiterm"
. "github.com/Azure/go-ansiterm/winterm"
ansiterm "github.com/Azure/go-ansiterm"
"github.com/Azure/go-ansiterm/winterm"
"github.com/Sirupsen/logrus"
)
@ -17,17 +17,17 @@ var logger *logrus.Logger
type ansiWriter struct {
file *os.File
fd uintptr
infoReset *CONSOLE_SCREEN_BUFFER_INFO
infoReset *winterm.CONSOLE_SCREEN_BUFFER_INFO
command []byte
escapeSequence []byte
inAnsiSequence bool
parser *AnsiParser
parser *ansiterm.AnsiParser
}
func newAnsiWriter(nFile int) *ansiWriter {
logFile := ioutil.Discard
if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
if isDebugEnv := os.Getenv(ansiterm.LogEnv); isDebugEnv == "1" {
logFile, _ = os.Create("ansiReaderWriter.log")
}
@ -37,21 +37,21 @@ func newAnsiWriter(nFile int) *ansiWriter {
Level: logrus.DebugLevel,
}
file, fd := GetStdFile(nFile)
info, err := GetConsoleScreenBufferInfo(fd)
file, fd := winterm.GetStdFile(nFile)
info, err := winterm.GetConsoleScreenBufferInfo(fd)
if err != nil {
return nil
}
parser := CreateParser("Ground", CreateWinEventHandler(fd, file))
parser := ansiterm.CreateParser("Ground", winterm.CreateWinEventHandler(fd, file))
logger.Infof("newAnsiWriter: parser %p", parser)
aw := &ansiWriter{
file: file,
fd: fd,
infoReset: info,
command: make([]byte, 0, ANSI_MAX_CMD_LENGTH),
escapeSequence: []byte(KEY_ESC_CSI),
command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH),
escapeSequence: []byte(ansiterm.KEY_ESC_CSI),
parser: parser,
}

6
pkg/term/windows/console.go
View file

@ -7,10 +7,10 @@ import (
"os"
"syscall"
. "github.com/Azure/go-ansiterm/winterm"
"github.com/Azure/go-ansiterm/winterm"
)
// ConsoleStreams, for each standard stream referencing a console, returns a wrapped version
// ConsoleStreams returns a wrapped version for each standard stream referencing a console,
// that handles ANSI character sequences.
func ConsoleStreams() (stdIn io.ReadCloser, stdOut, stdErr io.Writer) {
if IsConsole(os.Stdin.Fd()) {
@ -56,6 +56,6 @@ func GetHandleInfo(in interface{}) (uintptr, bool) {
// IsConsole returns true if the given file descriptor is a Windows Console.
// The code assumes that GetConsoleMode will return an error for file descriptors that are not a console.
func IsConsole(fd uintptr) bool {
_, e := GetConsoleMode(fd)
_, e := winterm.GetConsoleMode(fd)
return e == nil
}