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, 108 insertions, 0 deletions

diff --git a/vendor/github.com/rjeczalik/notify/event_readdcw.go b/vendor/github.com/rjeczalik/notify/event_readdcw.go
new file mode 100644
index 000000000..11ead9e29
--- /dev/null
+++ b/vendor/github.com/rjeczalik/notify/event_readdcw.go
@@ -0,0 +1,108 @@
+// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+// +build windows
+
+package notify
+
+import (
+	"os"
+	"path/filepath"
+	"syscall"
+)
+
+// Platform independent event values.
+const (
+	osSpecificCreate Event = 1 << (20 + iota)
+	osSpecificRemove
+	osSpecificWrite
+	osSpecificRename
+	// recursive is used to distinguish recursive eventsets from non-recursive ones
+	recursive
+	// omit is used for dispatching internal events; only those events are sent
+	// for which both the event and the watchpoint has omit in theirs event sets.
+	omit
+	// dirmarker TODO(pknap)
+	dirmarker
+)
+
+// ReadDirectoryChangesW filters.
+const (
+	FileNotifyChangeFileName   = Event(syscall.FILE_NOTIFY_CHANGE_FILE_NAME)
+	FileNotifyChangeDirName    = Event(syscall.FILE_NOTIFY_CHANGE_DIR_NAME)
+	FileNotifyChangeAttributes = Event(syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES)
+	FileNotifyChangeSize       = Event(syscall.FILE_NOTIFY_CHANGE_SIZE)
+	FileNotifyChangeLastWrite  = Event(syscall.FILE_NOTIFY_CHANGE_LAST_WRITE)
+	FileNotifyChangeLastAccess = Event(syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS)
+	FileNotifyChangeCreation   = Event(syscall.FILE_NOTIFY_CHANGE_CREATION)
+	FileNotifyChangeSecurity   = Event(syscallFileNotifyChangeSecurity)
+)
+
+const (
+	fileNotifyChangeAll      = 0x17f // logical sum of all FileNotifyChange* events.
+	fileNotifyChangeModified = fileNotifyChangeAll &^ (FileNotifyChangeFileName | FileNotifyChangeDirName)
+)
+
+// according to: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365465(v=vs.85).aspx
+// this flag should be declared in: http://golang.org/src/pkg/syscall/ztypes_windows.go
+const syscallFileNotifyChangeSecurity = 0x00000100
+
+// ReadDirectoryChangesW actions.
+const (
+	FileActionAdded          = Event(syscall.FILE_ACTION_ADDED) << 12
+	FileActionRemoved        = Event(syscall.FILE_ACTION_REMOVED) << 12
+	FileActionModified       = Event(syscall.FILE_ACTION_MODIFIED) << 14
+	FileActionRenamedOldName = Event(syscall.FILE_ACTION_RENAMED_OLD_NAME) << 15
+	FileActionRenamedNewName = Event(syscall.FILE_ACTION_RENAMED_NEW_NAME) << 16
+)
+
+const fileActionAll = 0x7f000 // logical sum of all FileAction* events.
+
+var osestr = map[Event]string{
+	FileNotifyChangeFileName:   "notify.FileNotifyChangeFileName",
+	FileNotifyChangeDirName:    "notify.FileNotifyChangeDirName",
+	FileNotifyChangeAttributes: "notify.FileNotifyChangeAttributes",
+	FileNotifyChangeSize:       "notify.FileNotifyChangeSize",
+	FileNotifyChangeLastWrite:  "notify.FileNotifyChangeLastWrite",
+	FileNotifyChangeLastAccess: "notify.FileNotifyChangeLastAccess",
+	FileNotifyChangeCreation:   "notify.FileNotifyChangeCreation",
+	FileNotifyChangeSecurity:   "notify.FileNotifyChangeSecurity",
+
+	FileActionAdded:          "notify.FileActionAdded",
+	FileActionRemoved:        "notify.FileActionRemoved",
+	FileActionModified:       "notify.FileActionModified",
+	FileActionRenamedOldName: "notify.FileActionRenamedOldName",
+	FileActionRenamedNewName: "notify.FileActionRenamedNewName",
+}
+
+const (
+	fTypeUnknown uint8 = iota
+	fTypeFile
+	fTypeDirectory
+)
+
+// TODO(ppknap) : doc.
+type event struct {
+	pathw  []uint16
+	name   string
+	ftype  uint8
+	action uint32
+	filter uint32
+	e      Event
+}
+
+func (e *event) Event() Event     { return e.e }
+func (e *event) Path() string     { return filepath.Join(syscall.UTF16ToString(e.pathw), e.name) }
+func (e *event) Sys() interface{} { return e.ftype }
+
+func (e *event) isDir() (bool, error) {
+	if e.ftype != fTypeUnknown {
+		return e.ftype == fTypeDirectory, nil
+	}
+	fi, err := os.Stat(e.Path())
+	if err != nil {
+		return false, err
+	}
+	return fi.IsDir(), nil
+}