Godeps, vendor: convert dependency management to trash (#3198)

This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.

1 files changed, 0 insertions, 782 deletions

diff --git a/Godeps/_workspace/src/github.com/mattn/go-colorable/colorable_windows.go b/Godeps/_workspace/src/github.com/mattn/go-colorable/colorable_windows.go
deleted file mode 100644
index c551f7725..000000000
--- a/Godeps/_workspace/src/github.com/mattn/go-colorable/colorable_windows.go
+++ /dev/null
@@ -1,782 +0,0 @@
-package colorable
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"math"
-	"os"
-	"strconv"
-	"strings"
-	"syscall"
-	"unsafe"
-
-	"github.com/mattn/go-isatty"
-)
-
-const (
-	foregroundBlue      = 0x1
-	foregroundGreen     = 0x2
-	foregroundRed       = 0x4
-	foregroundIntensity = 0x8
-	foregroundMask      = (foregroundRed | foregroundBlue | foregroundGreen | foregroundIntensity)
-	backgroundBlue      = 0x10
-	backgroundGreen     = 0x20
-	backgroundRed       = 0x40
-	backgroundIntensity = 0x80
-	backgroundMask      = (backgroundRed | backgroundBlue | backgroundGreen | backgroundIntensity)
-)
-
-type wchar uint16
-type short int16
-type dword uint32
-type word uint16
-
-type coord struct {
-	x short
-	y short
-}
-
-type smallRect struct {
-	left   short
-	top    short
-	right  short
-	bottom short
-}
-
-type consoleScreenBufferInfo struct {
-	size              coord
-	cursorPosition    coord
-	attributes        word
-	window            smallRect
-	maximumWindowSize coord
-}
-
-var (
-	kernel32                       = syscall.NewLazyDLL("kernel32.dll")
-	procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
-	procSetConsoleTextAttribute    = kernel32.NewProc("SetConsoleTextAttribute")
-	procSetConsoleCursorPosition   = kernel32.NewProc("SetConsoleCursorPosition")
-	procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
-	procFillConsoleOutputAttribute = kernel32.NewProc("FillConsoleOutputAttribute")
-)
-
-type Writer struct {
-	out     io.Writer
-	handle  syscall.Handle
-	lastbuf bytes.Buffer
-	oldattr word
-}
-
-func NewColorableStdout() io.Writer {
-	var csbi consoleScreenBufferInfo
-	out := os.Stdout
-	if !isatty.IsTerminal(out.Fd()) {
-		return out
-	}
-	handle := syscall.Handle(out.Fd())
-	procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
-	return &Writer{out: out, handle: handle, oldattr: csbi.attributes}
-}
-
-func NewColorableStderr() io.Writer {
-	var csbi consoleScreenBufferInfo
-	out := os.Stderr
-	if !isatty.IsTerminal(out.Fd()) {
-		return out
-	}
-	handle := syscall.Handle(out.Fd())
-	procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
-	return &Writer{out: out, handle: handle, oldattr: csbi.attributes}
-}
-
-var color256 = map[int]int{
-	0:   0x000000,
-	1:   0x800000,
-	2:   0x008000,
-	3:   0x808000,
-	4:   0x000080,
-	5:   0x800080,
-	6:   0x008080,
-	7:   0xc0c0c0,
-	8:   0x808080,
-	9:   0xff0000,
-	10:  0x00ff00,
-	11:  0xffff00,
-	12:  0x0000ff,
-	13:  0xff00ff,
-	14:  0x00ffff,
-	15:  0xffffff,
-	16:  0x000000,
-	17:  0x00005f,
-	18:  0x000087,
-	19:  0x0000af,
-	20:  0x0000d7,
-	21:  0x0000ff,
-	22:  0x005f00,
-	23:  0x005f5f,
-	24:  0x005f87,
-	25:  0x005faf,
-	26:  0x005fd7,
-	27:  0x005fff,
-	28:  0x008700,
-	29:  0x00875f,
-	30:  0x008787,
-	31:  0x0087af,
-	32:  0x0087d7,
-	33:  0x0087ff,
-	34:  0x00af00,
-	35:  0x00af5f,
-	36:  0x00af87,
-	37:  0x00afaf,
-	38:  0x00afd7,
-	39:  0x00afff,
-	40:  0x00d700,
-	41:  0x00d75f,
-	42:  0x00d787,
-	43:  0x00d7af,
-	44:  0x00d7d7,
-	45:  0x00d7ff,
-	46:  0x00ff00,
-	47:  0x00ff5f,
-	48:  0x00ff87,
-	49:  0x00ffaf,
-	50:  0x00ffd7,
-	51:  0x00ffff,
-	52:  0x5f0000,
-	53:  0x5f005f,
-	54:  0x5f0087,
-	55:  0x5f00af,
-	56:  0x5f00d7,
-	57:  0x5f00ff,
-	58:  0x5f5f00,
-	59:  0x5f5f5f,
-	60:  0x5f5f87,
-	61:  0x5f5faf,
-	62:  0x5f5fd7,
-	63:  0x5f5fff,
-	64:  0x5f8700,
-	65:  0x5f875f,
-	66:  0x5f8787,
-	67:  0x5f87af,
-	68:  0x5f87d7,
-	69:  0x5f87ff,
-	70:  0x5faf00,
-	71:  0x5faf5f,
-	72:  0x5faf87,
-	73:  0x5fafaf,
-	74:  0x5fafd7,
-	75:  0x5fafff,
-	76:  0x5fd700,
-	77:  0x5fd75f,
-	78:  0x5fd787,
-	79:  0x5fd7af,
-	80:  0x5fd7d7,
-	81:  0x5fd7ff,
-	82:  0x5fff00,
-	83:  0x5fff5f,
-	84:  0x5fff87,
-	85:  0x5fffaf,
-	86:  0x5fffd7,
-	87:  0x5fffff,
-	88:  0x870000,
-	89:  0x87005f,
-	90:  0x870087,
-	91:  0x8700af,
-	92:  0x8700d7,
-	93:  0x8700ff,
-	94:  0x875f00,
-	95:  0x875f5f,
-	96:  0x875f87,
-	97:  0x875faf,
-	98:  0x875fd7,
-	99:  0x875fff,
-	100: 0x878700,
-	101: 0x87875f,
-	102: 0x878787,
-	103: 0x8787af,
-	104: 0x8787d7,
-	105: 0x8787ff,
-	106: 0x87af00,
-	107: 0x87af5f,
-	108: 0x87af87,
-	109: 0x87afaf,
-	110: 0x87afd7,
-	111: 0x87afff,
-	112: 0x87d700,
-	113: 0x87d75f,
-	114: 0x87d787,
-	115: 0x87d7af,
-	116: 0x87d7d7,
-	117: 0x87d7ff,
-	118: 0x87ff00,
-	119: 0x87ff5f,
-	120: 0x87ff87,
-	121: 0x87ffaf,
-	122: 0x87ffd7,
-	123: 0x87ffff,
-	124: 0xaf0000,
-	125: 0xaf005f,
-	126: 0xaf0087,
-	127: 0xaf00af,
-	128: 0xaf00d7,
-	129: 0xaf00ff,
-	130: 0xaf5f00,
-	131: 0xaf5f5f,
-	132: 0xaf5f87,
-	133: 0xaf5faf,
-	134: 0xaf5fd7,
-	135: 0xaf5fff,
-	136: 0xaf8700,
-	137: 0xaf875f,
-	138: 0xaf8787,
-	139: 0xaf87af,
-	140: 0xaf87d7,
-	141: 0xaf87ff,
-	142: 0xafaf00,
-	143: 0xafaf5f,
-	144: 0xafaf87,
-	145: 0xafafaf,
-	146: 0xafafd7,
-	147: 0xafafff,
-	148: 0xafd700,
-	149: 0xafd75f,
-	150: 0xafd787,
-	151: 0xafd7af,
-	152: 0xafd7d7,
-	153: 0xafd7ff,
-	154: 0xafff00,
-	155: 0xafff5f,
-	156: 0xafff87,
-	157: 0xafffaf,
-	158: 0xafffd7,
-	159: 0xafffff,
-	160: 0xd70000,
-	161: 0xd7005f,
-	162: 0xd70087,
-	163: 0xd700af,
-	164: 0xd700d7,
-	165: 0xd700ff,
-	166: 0xd75f00,
-	167: 0xd75f5f,
-	168: 0xd75f87,
-	169: 0xd75faf,
-	170: 0xd75fd7,
-	171: 0xd75fff,
-	172: 0xd78700,
-	173: 0xd7875f,
-	174: 0xd78787,
-	175: 0xd787af,
-	176: 0xd787d7,
-	177: 0xd787ff,
-	178: 0xd7af00,
-	179: 0xd7af5f,
-	180: 0xd7af87,
-	181: 0xd7afaf,
-	182: 0xd7afd7,
-	183: 0xd7afff,
-	184: 0xd7d700,
-	185: 0xd7d75f,
-	186: 0xd7d787,
-	187: 0xd7d7af,
-	188: 0xd7d7d7,
-	189: 0xd7d7ff,
-	190: 0xd7ff00,
-	191: 0xd7ff5f,
-	192: 0xd7ff87,
-	193: 0xd7ffaf,
-	194: 0xd7ffd7,
-	195: 0xd7ffff,
-	196: 0xff0000,
-	197: 0xff005f,
-	198: 0xff0087,
-	199: 0xff00af,
-	200: 0xff00d7,
-	201: 0xff00ff,
-	202: 0xff5f00,
-	203: 0xff5f5f,
-	204: 0xff5f87,
-	205: 0xff5faf,
-	206: 0xff5fd7,
-	207: 0xff5fff,
-	208: 0xff8700,
-	209: 0xff875f,
-	210: 0xff8787,
-	211: 0xff87af,
-	212: 0xff87d7,
-	213: 0xff87ff,
-	214: 0xffaf00,
-	215: 0xffaf5f,
-	216: 0xffaf87,
-	217: 0xffafaf,
-	218: 0xffafd7,
-	219: 0xffafff,
-	220: 0xffd700,
-	221: 0xffd75f,
-	222: 0xffd787,
-	223: 0xffd7af,
-	224: 0xffd7d7,
-	225: 0xffd7ff,
-	226: 0xffff00,
-	227: 0xffff5f,
-	228: 0xffff87,
-	229: 0xffffaf,
-	230: 0xffffd7,
-	231: 0xffffff,
-	232: 0x080808,
-	233: 0x121212,
-	234: 0x1c1c1c,
-	235: 0x262626,
-	236: 0x303030,
-	237: 0x3a3a3a,
-	238: 0x444444,
-	239: 0x4e4e4e,
-	240: 0x585858,
-	241: 0x626262,
-	242: 0x6c6c6c,
-	243: 0x767676,
-	244: 0x808080,
-	245: 0x8a8a8a,
-	246: 0x949494,
-	247: 0x9e9e9e,
-	248: 0xa8a8a8,
-	249: 0xb2b2b2,
-	250: 0xbcbcbc,
-	251: 0xc6c6c6,
-	252: 0xd0d0d0,
-	253: 0xdadada,
-	254: 0xe4e4e4,
-	255: 0xeeeeee,
-}
-
-func (w *Writer) Write(data []byte) (n int, err error) {
-	var csbi consoleScreenBufferInfo
-	procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-
-	er := bytes.NewBuffer(data)
-loop:
-	for {
-		r1, _, err := procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-		if r1 == 0 {
-			break loop
-		}
-
-		c1, _, err := er.ReadRune()
-		if err != nil {
-			break loop
-		}
-		if c1 != 0x1b {
-			fmt.Fprint(w.out, string(c1))
-			continue
-		}
-		c2, _, err := er.ReadRune()
-		if err != nil {
-			w.lastbuf.WriteRune(c1)
-			break loop
-		}
-		if c2 != 0x5b {
-			w.lastbuf.WriteRune(c1)
-			w.lastbuf.WriteRune(c2)
-			continue
-		}
-
-		var buf bytes.Buffer
-		var m rune
-		for {
-			c, _, err := er.ReadRune()
-			if err != nil {
-				w.lastbuf.WriteRune(c1)
-				w.lastbuf.WriteRune(c2)
-				w.lastbuf.Write(buf.Bytes())
-				break loop
-			}
-			if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
-				m = c
-				break
-			}
-			buf.Write([]byte(string(c)))
-		}
-
-		var csbi consoleScreenBufferInfo
-		switch m {
-		case 'A':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.y -= short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'B':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.y += short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'C':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.x -= short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'D':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			if n, err = strconv.Atoi(buf.String()); err == nil {
-				var csbi consoleScreenBufferInfo
-				procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-				csbi.cursorPosition.x += short(n)
-				procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-			}
-		case 'E':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.x = 0
-			csbi.cursorPosition.y += short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'F':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.x = 0
-			csbi.cursorPosition.y -= short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'G':
-			n, err = strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
-			csbi.cursorPosition.x = short(n)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'H':
-			token := strings.Split(buf.String(), ";")
-			if len(token) != 2 {
-				continue
-			}
-			n1, err := strconv.Atoi(token[0])
-			if err != nil {
-				continue
-			}
-			n2, err := strconv.Atoi(token[1])
-			if err != nil {
-				continue
-			}
-			csbi.cursorPosition.x = short(n2)
-			csbi.cursorPosition.x = short(n1)
-			procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
-		case 'J':
-			n, err := strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			var cursor coord
-			switch n {
-			case 0:
-				cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y}
-			case 1:
-				cursor = coord{x: csbi.window.left, y: csbi.window.top}
-			case 2:
-				cursor = coord{x: csbi.window.left, y: csbi.window.top}
-			}
-			var count, written dword
-			count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.size.y-csbi.cursorPosition.y)*csbi.size.x)
-			procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
-			procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
-		case 'K':
-			n, err := strconv.Atoi(buf.String())
-			if err != nil {
-				continue
-			}
-			var cursor coord
-			switch n {
-			case 0:
-				cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y}
-			case 1:
-				cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
-			case 2:
-				cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
-			}
-			var count, written dword
-			count = dword(csbi.size.x - csbi.cursorPosition.x)
-			procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
-			procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
-		case 'm':
-			attr := csbi.attributes
-			cs := buf.String()
-			if cs == "" {
-				procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(w.oldattr))
-				continue
-			}
-			token := strings.Split(cs, ";")
-			for i := 0; i < len(token); i += 1 {
-				ns := token[i]
-				if n, err = strconv.Atoi(ns); err == nil {
-					switch {
-					case n == 0 || n == 100:
-						attr = w.oldattr
-					case 1 <= n && n <= 5:
-						attr |= foregroundIntensity
-					case n == 7:
-						attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
-					case 22 == n || n == 25 || n == 25:
-						attr |= foregroundIntensity
-					case n == 27:
-						attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
-					case 30 <= n && n <= 37:
-						attr = (attr & backgroundMask)
-						if (n-30)&1 != 0 {
-							attr |= foregroundRed
-						}
-						if (n-30)&2 != 0 {
-							attr |= foregroundGreen
-						}
-						if (n-30)&4 != 0 {
-							attr |= foregroundBlue
-						}
-					case n == 38: // set foreground color.
-						if i < len(token)-2 && (token[i+1] == "5" || token[i+1] == "05") {
-							if n256, err := strconv.Atoi(token[i+2]); err == nil {
-								if n256foreAttr == nil {
-									n256setup()
-								}
-								attr &= backgroundMask
-								attr |= n256foreAttr[n256]
-								i += 2
-							}
-						} else {
-							attr = attr & (w.oldattr & backgroundMask)
-						}
-					case n == 39: // reset foreground color.
-						attr &= backgroundMask
-						attr |= w.oldattr & foregroundMask
-					case 40 <= n && n <= 47:
-						attr = (attr & foregroundMask)
-						if (n-40)&1 != 0 {
-							attr |= backgroundRed
-						}
-						if (n-40)&2 != 0 {
-							attr |= backgroundGreen
-						}
-						if (n-40)&4 != 0 {
-							attr |= backgroundBlue
-						}
-					case n == 48: // set background color.
-						if i < len(token)-2 && token[i+1] == "5" {
-							if n256, err := strconv.Atoi(token[i+2]); err == nil {
-								if n256backAttr == nil {
-									n256setup()
-								}
-								attr &= foregroundMask
-								attr |= n256backAttr[n256]
-								i += 2
-							}
-						} else {
-							attr = attr & (w.oldattr & foregroundMask)
-						}
-					case n == 49: // reset foreground color.
-						attr &= foregroundMask
-						attr |= w.oldattr & backgroundMask
-					case 90 <= n && n <= 97:
-						attr = (attr & backgroundMask)
-						attr |= foregroundIntensity
-						if (n-90)&1 != 0 {
-							attr |= foregroundRed
-						}
-						if (n-90)&2 != 0 {
-							attr |= foregroundGreen
-						}
-						if (n-90)&4 != 0 {
-							attr |= foregroundBlue
-						}
-					case 100 <= n && n <= 107:
-						attr = (attr & foregroundMask)
-						attr |= backgroundIntensity
-						if (n-100)&1 != 0 {
-							attr |= backgroundRed
-						}
-						if (n-100)&2 != 0 {
-							attr |= backgroundGreen
-						}
-						if (n-100)&4 != 0 {
-							attr |= backgroundBlue
-						}
-					}
-					procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(attr))
-				}
-			}
-		}
-	}
-	return len(data) - w.lastbuf.Len(), nil
-}
-
-type consoleColor struct {
-	rgb       int
-	red       bool
-	green     bool
-	blue      bool
-	intensity bool
-}
-
-func (c consoleColor) foregroundAttr() (attr word) {
-	if c.red {
-		attr |= foregroundRed
-	}
-	if c.green {
-		attr |= foregroundGreen
-	}
-	if c.blue {
-		attr |= foregroundBlue
-	}
-	if c.intensity {
-		attr |= foregroundIntensity
-	}
-	return
-}
-
-func (c consoleColor) backgroundAttr() (attr word) {
-	if c.red {
-		attr |= backgroundRed
-	}
-	if c.green {
-		attr |= backgroundGreen
-	}
-	if c.blue {
-		attr |= backgroundBlue
-	}
-	if c.intensity {
-		attr |= backgroundIntensity
-	}
-	return
-}
-
-var color16 = []consoleColor{
-	consoleColor{0x000000, false, false, false, false},
-	consoleColor{0x000080, false, false, true, false},
-	consoleColor{0x008000, false, true, false, false},
-	consoleColor{0x008080, false, true, true, false},
-	consoleColor{0x800000, true, false, false, false},
-	consoleColor{0x800080, true, false, true, false},
-	consoleColor{0x808000, true, true, false, false},
-	consoleColor{0xc0c0c0, true, true, true, false},
-	consoleColor{0x808080, false, false, false, true},
-	consoleColor{0x0000ff, false, false, true, true},
-	consoleColor{0x00ff00, false, true, false, true},
-	consoleColor{0x00ffff, false, true, true, true},
-	consoleColor{0xff0000, true, false, false, true},
-	consoleColor{0xff00ff, true, false, true, true},
-	consoleColor{0xffff00, true, true, false, true},
-	consoleColor{0xffffff, true, true, true, true},
-}
-
-type hsv struct {
-	h, s, v float32
-}
-
-func (a hsv) dist(b hsv) float32 {
-	dh := a.h - b.h
-	switch {
-	case dh > 0.5:
-		dh = 1 - dh
-	case dh < -0.5:
-		dh = -1 - dh
-	}
-	ds := a.s - b.s
-	dv := a.v - b.v
-	return float32(math.Sqrt(float64(dh*dh + ds*ds + dv*dv)))
-}
-
-func toHSV(rgb int) hsv {
-	r, g, b := float32((rgb&0xFF0000)>>16)/256.0,
-		float32((rgb&0x00FF00)>>8)/256.0,
-		float32(rgb&0x0000FF)/256.0
-	min, max := minmax3f(r, g, b)
-	h := max - min
-	if h > 0 {
-		if max == r {
-			h = (g - b) / h
-			if h < 0 {
-				h += 6
-			}
-		} else if max == g {
-			h = 2 + (b-r)/h
-		} else {
-			h = 4 + (r-g)/h
-		}
-	}
-	h /= 6.0
-	s := max - min
-	if max != 0 {
-		s /= max
-	}
-	v := max
-	return hsv{h: h, s: s, v: v}
-}
-
-type hsvTable []hsv
-
-func toHSVTable(rgbTable []consoleColor) hsvTable {
-	t := make(hsvTable, len(rgbTable))
-	for i, c := range rgbTable {
-		t[i] = toHSV(c.rgb)
-	}
-	return t
-}
-
-func (t hsvTable) find(rgb int) consoleColor {
-	hsv := toHSV(rgb)
-	n := 7
-	l := float32(5.0)
-	for i, p := range t {
-		d := hsv.dist(p)
-		if d < l {
-			l, n = d, i
-		}
-	}
-	return color16[n]
-}
-
-func minmax3f(a, b, c float32) (min, max float32) {
-	if a < b {
-		if b < c {
-			return a, c
-		} else if a < c {
-			return a, b
-		} else {
-			return c, b
-		}
-	} else {
-		if a < c {
-			return b, c
-		} else if b < c {
-			return b, a
-		} else {
-			return c, a
-		}
-	}
-}
-
-var n256foreAttr []word
-var n256backAttr []word
-
-func n256setup() {
-	n256foreAttr = make([]word, 256)
-	n256backAttr = make([]word, 256)
-	t := toHSVTable(color16)
-	for i, rgb := range color256 {
-		c := t.find(rgb)
-		n256foreAttr[i] = c.foregroundAttr()
-		n256backAttr[i] = c.backgroundAttr()
-	}
-}