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, 187 deletions

diff --git a/Godeps/_workspace/src/gopkg.in/check.v1/benchmark.go b/Godeps/_workspace/src/gopkg.in/check.v1/benchmark.go
deleted file mode 100644
index 46ea9dc6d..000000000
--- a/Godeps/_workspace/src/gopkg.in/check.v1/benchmark.go
+++ /dev/null
@@ -1,187 +0,0 @@
-// Copyright (c) 2012 The Go Authors. All rights reserved.
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-// 
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package check
-
-import (
-	"fmt"
-	"runtime"
-	"time"
-)
-
-var memStats runtime.MemStats
-
-// testingB is a type passed to Benchmark functions to manage benchmark
-// timing and to specify the number of iterations to run.
-type timer struct {
-	start     time.Time // Time test or benchmark started
-	duration  time.Duration
-	N         int
-	bytes     int64
-	timerOn   bool
-	benchTime time.Duration
-	// The initial states of memStats.Mallocs and memStats.TotalAlloc.
-	startAllocs uint64
-	startBytes  uint64
-	// The net total of this test after being run.
-	netAllocs uint64
-	netBytes  uint64
-}
-
-// StartTimer starts timing a test. This function is called automatically
-// before a benchmark starts, but it can also used to resume timing after
-// a call to StopTimer.
-func (c *C) StartTimer() {
-	if !c.timerOn {
-		c.start = time.Now()
-		c.timerOn = true
-
-		runtime.ReadMemStats(&memStats)
-		c.startAllocs = memStats.Mallocs
-		c.startBytes = memStats.TotalAlloc
-	}
-}
-
-// StopTimer stops timing a test. This can be used to pause the timer
-// while performing complex initialization that you don't
-// want to measure.
-func (c *C) StopTimer() {
-	if c.timerOn {
-		c.duration += time.Now().Sub(c.start)
-		c.timerOn = false
-		runtime.ReadMemStats(&memStats)
-		c.netAllocs += memStats.Mallocs - c.startAllocs
-		c.netBytes += memStats.TotalAlloc - c.startBytes
-	}
-}
-
-// ResetTimer sets the elapsed benchmark time to zero.
-// It does not affect whether the timer is running.
-func (c *C) ResetTimer() {
-	if c.timerOn {
-		c.start = time.Now()
-		runtime.ReadMemStats(&memStats)
-		c.startAllocs = memStats.Mallocs
-		c.startBytes = memStats.TotalAlloc
-	}
-	c.duration = 0
-	c.netAllocs = 0
-	c.netBytes = 0
-}
-
-// SetBytes informs the number of bytes that the benchmark processes
-// on each iteration. If this is called in a benchmark it will also
-// report MB/s.
-func (c *C) SetBytes(n int64) {
-	c.bytes = n
-}
-
-func (c *C) nsPerOp() int64 {
-	if c.N <= 0 {
-		return 0
-	}
-	return c.duration.Nanoseconds() / int64(c.N)
-}
-
-func (c *C) mbPerSec() float64 {
-	if c.bytes <= 0 || c.duration <= 0 || c.N <= 0 {
-		return 0
-	}
-	return (float64(c.bytes) * float64(c.N) / 1e6) / c.duration.Seconds()
-}
-
-func (c *C) timerString() string {
-	if c.N <= 0 {
-		return fmt.Sprintf("%3.3fs", float64(c.duration.Nanoseconds())/1e9)
-	}
-	mbs := c.mbPerSec()
-	mb := ""
-	if mbs != 0 {
-		mb = fmt.Sprintf("\t%7.2f MB/s", mbs)
-	}
-	nsop := c.nsPerOp()
-	ns := fmt.Sprintf("%10d ns/op", nsop)
-	if c.N > 0 && nsop < 100 {
-		// The format specifiers here make sure that
-		// the ones digits line up for all three possible formats.
-		if nsop < 10 {
-			ns = fmt.Sprintf("%13.2f ns/op", float64(c.duration.Nanoseconds())/float64(c.N))
-		} else {
-			ns = fmt.Sprintf("%12.1f ns/op", float64(c.duration.Nanoseconds())/float64(c.N))
-		}
-	}
-	memStats := ""
-	if c.benchMem {
-		allocedBytes := fmt.Sprintf("%8d B/op", int64(c.netBytes)/int64(c.N))
-		allocs := fmt.Sprintf("%8d allocs/op", int64(c.netAllocs)/int64(c.N))
-		memStats = fmt.Sprintf("\t%s\t%s", allocedBytes, allocs)
-	}
-	return fmt.Sprintf("%8d\t%s%s%s", c.N, ns, mb, memStats)
-}
-
-func min(x, y int) int {
-	if x > y {
-		return y
-	}
-	return x
-}
-
-func max(x, y int) int {
-	if x < y {
-		return y
-	}
-	return x
-}
-
-// roundDown10 rounds a number down to the nearest power of 10.
-func roundDown10(n int) int {
-	var tens = 0
-	// tens = floor(log_10(n))
-	for n > 10 {
-		n = n / 10
-		tens++
-	}
-	// result = 10^tens
-	result := 1
-	for i := 0; i < tens; i++ {
-		result *= 10
-	}
-	return result
-}
-
-// roundUp rounds x up to a number of the form [1eX, 2eX, 5eX].
-func roundUp(n int) int {
-	base := roundDown10(n)
-	if n < (2 * base) {
-		return 2 * base
-	}
-	if n < (5 * base) {
-		return 5 * base
-	}
-	return 10 * base
-}