Upgrade to 0.12

7 files changed, 408 insertions, 0 deletions

diff --git a/vendor/github.com/googleapis/gax-go/v2/LICENSE b/vendor/github.com/googleapis/gax-go/v2/LICENSE
new file mode 100644
index 0000000..6d16b65
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2016, Google Inc.
+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.
diff --git a/vendor/github.com/googleapis/gax-go/v2/call_option.go b/vendor/github.com/googleapis/gax-go/v2/call_option.go
new file mode 100644
index 0000000..b1d53dd
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/call_option.go
@@ -0,0 +1,161 @@
+// Copyright 2016, Google Inc.
+// 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 gax
+
+import (
+        "math/rand"
+        "time"
+
+        "google.golang.org/grpc"
+        "google.golang.org/grpc/codes"
+        "google.golang.org/grpc/status"
+)
+
+// CallOption is an option used by Invoke to control behaviors of RPC calls.
+// CallOption works by modifying relevant fields of CallSettings.
+type CallOption interface {
+        // Resolve applies the option by modifying cs.
+        Resolve(cs *CallSettings)
+}
+
+// Retryer is used by Invoke to determine retry behavior.
+type Retryer interface {
+        // Retry reports whether a request should be retriedand how long to pause before retrying
+        // if the previous attempt returned with err. Invoke never calls Retry with nil error.
+        Retry(err error) (pause time.Duration, shouldRetry bool)
+}
+
+type retryerOption func() Retryer
+
+func (o retryerOption) Resolve(s *CallSettings) {
+        s.Retry = o
+}
+
+// WithRetry sets CallSettings.Retry to fn.
+func WithRetry(fn func() Retryer) CallOption {
+        return retryerOption(fn)
+}
+
+// OnCodes returns a Retryer that retries if and only if
+// the previous attempt returns a GRPC error whose error code is stored in cc.
+// Pause times between retries are specified by bo.
+//
+// bo is only used for its parameters; each Retryer has its own copy.
+func OnCodes(cc []codes.Code, bo Backoff) Retryer {
+        return &boRetryer{
+                backoff: bo,
+                codes:   append([]codes.Code(nil), cc...),
+        }
+}
+
+type boRetryer struct {
+        backoff Backoff
+        codes   []codes.Code
+}
+
+func (r *boRetryer) Retry(err error) (time.Duration, bool) {
+        st, ok := status.FromError(err)
+        if !ok {
+                return 0, false
+        }
+        c := st.Code()
+        for _, rc := range r.codes {
+                if c == rc {
+                        return r.backoff.Pause(), true
+                }
+        }
+        return 0, false
+}
+
+// Backoff implements exponential backoff.
+// The wait time between retries is a random value between 0 and the "retry envelope".
+// The envelope starts at Initial and increases by the factor of Multiplier every retry,
+// but is capped at Max.
+type Backoff struct {
+        // Initial is the initial value of the retry envelope, defaults to 1 second.
+        Initial time.Duration
+
+        // Max is the maximum value of the retry envelope, defaults to 30 seconds.
+        Max time.Duration
+
+        // Multiplier is the factor by which the retry envelope increases.
+        // It should be greater than 1 and defaults to 2.
+        Multiplier float64
+
+        // cur is the current retry envelope
+        cur time.Duration
+}
+
+// Pause returns the next time.Duration that the caller should use to backoff.
+func (bo *Backoff) Pause() time.Duration {
+        if bo.Initial == 0 {
+                bo.Initial = time.Second
+        }
+        if bo.cur == 0 {
+                bo.cur = bo.Initial
+        }
+        if bo.Max == 0 {
+                bo.Max = 30 * time.Second
+        }
+        if bo.Multiplier < 1 {
+                bo.Multiplier = 2
+        }
+        // Select a duration between 1ns and the current max. It might seem
+        // counterintuitive to have so much jitter, but
+        // https://www.awsarchitectureblog.com/2015/03/backoff.html argues that
+        // that is the best strategy.
+        d := time.Duration(1 + rand.Int63n(int64(bo.cur)))
+        bo.cur = time.Duration(float64(bo.cur) * bo.Multiplier)
+        if bo.cur > bo.Max {
+                bo.cur = bo.Max
+        }
+        return d
+}
+
+type grpcOpt []grpc.CallOption
+
+func (o grpcOpt) Resolve(s *CallSettings) {
+        s.GRPC = o
+}
+
+// WithGRPCOptions allows passing gRPC call options during client creation.
+func WithGRPCOptions(opt ...grpc.CallOption) CallOption {
+        return grpcOpt(append([]grpc.CallOption(nil), opt...))
+}
+
+// CallSettings allow fine-grained control over how calls are made.
+type CallSettings struct {
+        // Retry returns a Retryer to be used to control retry logic of a method call.
+        // If Retry is nil or the returned Retryer is nil, the call will not be retried.
+        Retry func() Retryer
+
+        // CallOptions to be forwarded to GRPC.
+        GRPC []grpc.CallOption
+}
diff --git a/vendor/github.com/googleapis/gax-go/v2/gax.go b/vendor/github.com/googleapis/gax-go/v2/gax.go
new file mode 100644
index 0000000..8040dcb
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/gax.go
@@ -0,0 +1,39 @@
+// Copyright 2016, Google Inc.
+// 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 gax contains a set of modules which aid the development of APIs
+// for clients and servers based on gRPC and Google API conventions.
+//
+// Application code will rarely need to use this library directly.
+// However, code generated automatically from API definition files can use it
+// to simplify code generation and to provide more convenient and idiomatic API surfaces.
+package gax
+
+// Version specifies the gax-go version being used.
+const Version = "2.0.3"
diff --git a/vendor/github.com/googleapis/gax-go/v2/go.mod b/vendor/github.com/googleapis/gax-go/v2/go.mod
new file mode 100644
index 0000000..c88c205
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/go.mod
@@ -0,0 +1,3 @@
+module github.com/googleapis/gax-go/v2
+
+require google.golang.org/grpc v1.16.0
diff --git a/vendor/github.com/googleapis/gax-go/v2/go.sum b/vendor/github.com/googleapis/gax-go/v2/go.sum
new file mode 100644
index 0000000..bad34ab
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/go.sum
@@ -0,0 +1,26 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:tluoj9z5200jBnyusfRPU2LqT6J+DAorxEvtC7LHB+E=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/net v0.0.0-20180826012351-8a410e7b638d h1:g9qWBGx4puODJTMVyoPrpoxPFgVGd+z1DZwjfRu4d0I=
+golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522 h1:Ve1ORMCxvRmSXBwJK+t3Oy+V2vRW2OetUQBq4rJIkZE=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/grpc v1.16.0 h1:dz5IJGuC2BB7qXR5AyHNwAUBhZscK2xVez7mznh72sY=
+google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/vendor/github.com/googleapis/gax-go/v2/header.go b/vendor/github.com/googleapis/gax-go/v2/header.go
new file mode 100644
index 0000000..139371a
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/header.go
@@ -0,0 +1,53 @@
+// Copyright 2018, Google Inc.
+// 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 gax
+
+import "bytes"
+
+// XGoogHeader is for use by the Google Cloud Libraries only.
+//
+// XGoogHeader formats key-value pairs.
+// The resulting string is suitable for x-goog-api-client header.
+func XGoogHeader(keyval ...string) string {
+        if len(keyval) == 0 {
+                return ""
+        }
+        if len(keyval)%2 != 0 {
+                panic("gax.Header: odd argument count")
+        }
+        var buf bytes.Buffer
+        for i := 0; i < len(keyval); i += 2 {
+                buf.WriteByte(' ')
+                buf.WriteString(keyval[i])
+                buf.WriteByte('/')
+                buf.WriteString(keyval[i+1])
+        }
+        return buf.String()[1:]
+}
diff --git a/vendor/github.com/googleapis/gax-go/v2/invoke.go b/vendor/github.com/googleapis/gax-go/v2/invoke.go
new file mode 100644
index 0000000..fe31dd0
--- /dev/null
+++ b/vendor/github.com/googleapis/gax-go/v2/invoke.go
@@ -0,0 +1,99 @@
+// Copyright 2016, Google Inc.
+// 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 gax
+
+import (
+        "context"
+        "strings"
+        "time"
+)
+
+// APICall is a user defined call stub.
+type APICall func(context.Context, CallSettings) error
+
+// Invoke calls the given APICall,
+// performing retries as specified by opts, if any.
+func Invoke(ctx context.Context, call APICall, opts ...CallOption) error {
+        var settings CallSettings
+        for _, opt := range opts {
+                opt.Resolve(&settings)
+        }
+        return invoke(ctx, call, settings, Sleep)
+}
+
+// Sleep is similar to time.Sleep, but it can be interrupted by ctx.Done() closing.
+// If interrupted, Sleep returns ctx.Err().
+func Sleep(ctx context.Context, d time.Duration) error {
+        t := time.NewTimer(d)
+        select {
+        case <-ctx.Done():
+                t.Stop()
+                return ctx.Err()
+        case <-t.C:
+                return nil
+        }
+}
+
+type sleeper func(ctx context.Context, d time.Duration) error
+
+// invoke implements Invoke, taking an additional sleeper argument for testing.
+func invoke(ctx context.Context, call APICall, settings CallSettings, sp sleeper) error {
+        var retryer Retryer
+        for {
+                err := call(ctx, settings)
+                if err == nil {
+                        return nil
+                }
+                if settings.Retry == nil {
+                        return err
+                }
+                // Never retry permanent certificate errors. (e.x. if ca-certificates
+                // are not installed). We should only make very few, targeted
+                // exceptions: many (other) status=Unavailable should be retried, such
+                // as if there's a network hiccup, or the internet goes out for a
+                // minute. This is also why here we are doing string parsing instead of
+                // simply making Unavailable a non-retried code elsewhere.
+                if strings.Contains(err.Error(), "x509: certificate signed by unknown authority") {
+                        return err
+                }
+                if retryer == nil {
+                        if r := settings.Retry(); r != nil {
+                                retryer = r
+                        } else {
+                                return err
+                        }
+                }
+                if d, ok := retryer.Retry(err); !ok {
+                        return err
+                } else if err = sp(ctx, d); err != nil {
+                        return err
+                }
+        }
+}