Windows support (agent) (#212)

* Create stubs for non-windows code

* Disable dotnet profiling options for Windows

* Implement windows-specific parts

* Fix configuration type

* Add MSI package definition

* Embed windows version info at build

* Add agent run mode

* Rework windows-dev build

* Add target manager

* Rework CLI

* Allow pyroscope agent to run without a config file

* Rework agent logging

* Improve error messages

Co-authored-by: Dmitry Filimonov <dmitry@pyroscope.io>

Author: kolesnikovae

.gitignore

@@ -7,10 +7,13 @@ node_modules
 pkged.go
 .DS_Store
 /Icon*
+/out/
 /scripts/packages/
 .eslintcache
 *.pyc
 *.internal
+*.syso
+*.exe
 .idea
 .vscode
 vendor/

Dockerfile.windows

@@ -0,0 +1,40 @@
+FROM golang:1.16.4-alpine3.12 as go-builder
+
+RUN apk add --no-cache make git zstd gcc g++ libc-dev musl-dev bash mingw-w64-gcc
+
+WORKDIR /opt/pyroscope/
+
+COPY pkg ./pkg
+COPY cmd ./cmd
+COPY scripts ./scripts
+COPY go.mod go.sum pyroscope.go ./
+
+# Generate .syso object file.
+RUN source scripts/packages/git-info && go run scripts/windows/generate-windows-version-info/main.go \
+  -version "$GIT_TAG" \
+  -icon scripts/windows/resources/app.ico \
+  -out cmd/pyroscope/resource.syso
+
+## Build for Windows x64 only.
+RUN GOOS=windows GOARCH=amd64 go build \
+  -trimpath -ldflags "$(scripts/generate-build-flags.sh)" \
+  -tags dotnetspy,debugspy \
+  -o pyroscope.exe \
+  ./cmd/pyroscope
+
+FROM harbottle/wix AS msi-builder
+
+COPY --from=go-builder /opt/pyroscope/pyroscope.exe pyroscope.exe
+COPY scripts/windows/pyroscope.wsx pyroscope.wsx
+COPY scripts/windows/resources resources
+
+# Build MSI package.
+RUN candle -arch x64 -ext WixUtilExtension \
+    -dPyroscopeSourceExecutable=pyroscope.exe \
+    pyroscope.wsx && \
+    light -sval -ext WixUtilExtension \
+    pyroscope.wixobj
+
+FROM scratch AS msi-exporter
+COPY --from=msi-builder /mnt/workspace/pyroscope.exe /
+COPY --from=msi-builder /mnt/workspace/pyroscope.msi /

Makefile

@@ -134,3 +134,7 @@ update-protobuf:
 .PHONY: docker-dev
 docker-dev:
 	docker build . --tag pyroscope/pyroscope:dev
+
+.PHONY: windows-dev
+windows-dev:
+	docker build -f Dockerfile.windows --output type=local,dest=out .

cmd/pyroscope/logging.go

@@ -3,7 +3,9 @@ package main
 import (
 	"log"
 	"os"
+	"runtime"
 
+	"github.com/fatih/color"
 	"github.com/sirupsen/logrus"
 )
 
@@ -13,4 +15,8 @@ func init() {
 	logrus.SetFormatter(&logrus.TextFormatter{})
 	logrus.SetOutput(os.Stdout)
 	logrus.SetLevel(logrus.DebugLevel)
+
+	if runtime.GOOS == "windows" {
+		color.NoColor = true
+	}
 }

cmd/pyroscope/main.go

@@ -1,17 +1,14 @@
 package main
 
 import (
-	"os"
-
 	"github.com/fatih/color"
+
 	"github.com/pyroscope-io/pyroscope/pkg/cli"
 	"github.com/pyroscope-io/pyroscope/pkg/config"
 )
 
 func main() {
-	cfg := &config.Config{}
-	err := cli.Start(cfg)
-	if err != nil {
-		os.Stderr.Write([]byte(color.RedString("Error: ") + err.Error() + "\n\n"))
+	if err := cli.Start(new(config.Config)); err != nil {
+		fatalf("%s %v\n\n", color.RedString("Error:"), err)
 	}
 }

cmd/pyroscope/main_unix.go

@@ -0,0 +1,13 @@
+// +build !windows
+
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func fatalf(format string, args ...interface{}) {
+	_, _ = fmt.Fprintf(os.Stderr, format, args...)
+	os.Exit(1)
+}

cmd/pyroscope/main_windows.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/kardianos/service"
+	"golang.org/x/sys/windows/svc/eventlog"
+)
+
+func fatalf(format string, args ...interface{}) {
+	msg := fmt.Sprintf(format, args...)
+	if service.Interactive() {
+		_, _ = fmt.Fprint(os.Stderr, msg)
+		os.Exit(1)
+	}
+	log, err := eventlog.Open("Pyroscope")
+	if err == nil {
+		err = log.Error(1, msg)
+	}
+	if err != nil {
+		panic(msg)
+	}
+	os.Exit(1)
+}

go.mod

@@ -5,6 +5,7 @@ go 1.14
 require (
 	github.com/avast/retry-go v3.0.0+incompatible
 	github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59
+	github.com/blang/semver v3.5.1+incompatible
 	github.com/cheggaaa/pb/v3 v3.0.5
 	github.com/clarkduvall/hyperloglog v0.0.0-20171127014514-a0107a5d8004
 	github.com/cosmtrek/air v1.12.2
@@ -20,6 +21,8 @@ require (
 	github.com/iancoleman/strcase v0.1.2
 	github.com/ianlancetaylor/demangle v0.0.0-20200715173712-053cf528c12f // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
+	github.com/josephspurrier/goversioninfo v1.2.0
+	github.com/kardianos/service v1.2.0
 	github.com/kisielk/godepgraph v0.0.0-20190626013829-57a7e4a651a9
 	github.com/kr/pretty v0.2.0 // indirect
 	github.com/kyoh86/richgo v0.3.3
@@ -33,16 +36,17 @@ require (
 	github.com/onsi/ginkgo v1.16.2
 	github.com/onsi/gomega v1.12.0
 	github.com/pelletier/go-toml v1.8.1 // indirect
-	github.com/peterbourgon/ff v1.7.0
 	github.com/peterbourgon/ff/v3 v3.0.0
 	github.com/prometheus/client_golang v1.10.0
-	github.com/pyroscope-io/dotnetdiag v1.1.0
+	github.com/pyroscope-io/dotnetdiag v1.2.0
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/sirupsen/logrus v1.7.0
 	github.com/twmb/murmur3 v1.1.5
 	github.com/wacul/ptr v1.0.0 // indirect
+	golang.org/x/sys v0.0.0-20210423082822-04245dca01da
 	golang.org/x/tools v0.1.0
 	google.golang.org/protobuf v1.26.0
+	gopkg.in/yaml.v2 v2.4.0
 	honnef.co/go/tools v0.0.1-2020.1.6
 )
 

go.sum

@@ -5,6 +5,8 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/DataDog/zstd v1.4.1 h1:3oxKN3wbHibqx897utPC2LTQU4J+IHWWJO+glkAkpFM=
 github.com/DataDog/zstd v1.4.1/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/Microsoft/go-winio v0.5.0 h1:Elr9Wn+sGKPlkaBvwu4mTrxtmOp3F3yV9qhaHbXGjwU=
+github.com/Microsoft/go-winio v0.5.0/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
@@ -13,6 +15,8 @@ github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdc
 github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
+github.com/akavel/rsrc v0.8.0 h1:zjWn7ukO9Kc5Q62DOJCcxGpXC18RawVtYAGdz2aLlfw=
+github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@@ -37,6 +41,8 @@ github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+Ce
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/blang/semver v3.5.1+incompatible h1:cQNTCjp13qL8KC3Nbxr/y2Bqb63oX6wdnnjpJbkM4JQ=
+github.com/blang/semver v3.5.1+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
@@ -206,6 +212,8 @@ github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht
 github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
 github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
+github.com/josephspurrier/goversioninfo v1.2.0 h1:tpLHXAxLHKHg/dCU2AAYx08A4m+v9/CWg6+WUvTF4uQ=
+github.com/josephspurrier/goversioninfo v1.2.0/go.mod h1:AGP2a+Y/OVJZ+s6XM4IwFUpkETwvn0orYurY8qpw1+0=
 github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
@@ -214,6 +222,8 @@ github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
+github.com/kardianos/service v1.2.0 h1:bGuZ/epo3vrt8IPC7mnKQolqFeYJb7Cs8Rk4PSOBB/g=
+github.com/kardianos/service v1.2.0/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/godepgraph v0.0.0-20190626013829-57a7e4a651a9 h1:ZkWH0x1yafBo+Y2WdGGdszlJrMreMXWl7/dqpEkwsIk=
 github.com/kisielk/godepgraph v0.0.0-20190626013829-57a7e4a651a9/go.mod h1:Gb5YEgxqiSSVrXKWQxDcKoCM94NO5QAwOwTaVmIUAMI=
@@ -269,7 +279,6 @@ github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrk
 github.com/mitchellh/go-ps v1.0.0 h1:i6ampVEEF4wQFF+bkYfwYgY+F/uYJDktmvLPf7qIgjc=
 github.com/mitchellh/go-ps v1.0.0/go.mod h1:J4lOc8z8yJs6vUwklHw2XEIiT4z4C40KtWVN3nvg8Pg=
 github.com/mitchellh/go-testing-interface v1.0.0/go.mod h1:kRemZodwjscx+RGhAo8eIhFbs2+BFgRtFPeD/KE+zxI=
-github.com/mitchellh/go-wordwrap v1.0.0/go.mod h1:ZXFpozHsX6DPmq2I0TCekCxypsnAUbP2oI0UX1GXzOo=
 github.com/mitchellh/gox v0.4.0/go.mod h1:Sd9lOJ0+aimLBi73mGofS1ycjY8lL3uZM3JPS42BGNg=
 github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0QubkSMEySY=
 github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
@@ -325,8 +334,6 @@ github.com/pelletier/go-toml v1.6.0/go.mod h1:5N711Q9dKgbdkxHL+MEfF31hpT7l0S0s/t
 github.com/pelletier/go-toml v1.8.1 h1:1Nf83orprkJyknT6h7zbuEGUEjcyVlCxSUGTENmNCRM=
 github.com/pelletier/go-toml v1.8.1/go.mod h1:T2/BmBdy8dvIRq1a/8aqjN41wvWlN4lrapLU/GW4pbc=
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
-github.com/peterbourgon/ff v1.7.0 h1:hknvTgsh90jNBIjPq7xeq32Y9AmSbpXvjrFW4sJwW+A=
-github.com/peterbourgon/ff v1.7.0/go.mod h1:/KKxnU5cBj4w21jEMj4Rway/kslRP6XAOHh7CH8AyAM=
 github.com/peterbourgon/ff/v3 v3.0.0 h1:eQzEmNahuOjQXfuegsKQTSTDbf4dNvr/eNLrmJhiH7M=
 github.com/peterbourgon/ff/v3 v3.0.0/go.mod h1:UILIFjRH5a/ar8TjXYLTkIvSvekZqPm5Eb/qbGk6CT0=
 github.com/pierrec/lz4 v1.0.2-0.20190131084431-473cd7ce01a1/go.mod h1:3/3N9NVKO0jef7pBehbT1qWhCMrIgbYNnFAZCqQ5LRc=
@@ -366,8 +373,8 @@ github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+Gx
 github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
 github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
-github.com/pyroscope-io/dotnetdiag v1.1.0 h1:BIo2cIAH+/iXQgbgUfpLil3E9ODY2HcnBBwQ4smjgAU=
-github.com/pyroscope-io/dotnetdiag v1.1.0/go.mod h1:mUudCmW+j2ewS55/FHq0lHj0Xy2AHWc1UhaaRdfSve8=
+github.com/pyroscope-io/dotnetdiag v1.2.0 h1:RuuCMjuJbW3vnv+XO/0492P5OndG/ZFlvzZQy3k+hi4=
+github.com/pyroscope-io/dotnetdiag v1.2.0/go.mod h1:eFUEHCp4eD1TgcXMlJihC+R4MrqGf7nTRdWxNADbDHA=
 github.com/pyroscope-io/lfu-go v1.0.1 h1:yGE9tbsAYTr+Bb5KL25WJOh7FX0bnb01MDgIqPvxPAY=
 github.com/pyroscope-io/lfu-go v1.0.1/go.mod h1:3W9sGrDLhKFkHZPXkz6c5dAKrxcwkKbFFKnJtDukMDA=
 github.com/pyroscope-io/revive v1.0.6-0.20210330033039-4a71146f9dc1 h1:0v9lBNgdmVtpyyk9PP/DfpJlOHkXriu5YgNlrhQw5YE=
@@ -413,8 +420,9 @@ github.com/stretchr/testify v1.1.4/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/twmb/murmur3 v1.1.5 h1:i9OLS9fkuLzBXjt6dptlAEyk58fJsSTXbRg3SgVyqgk=
 github.com/twmb/murmur3 v1.1.5/go.mod h1:Qq/R7NUyOfr65zD+6Q5IHKsJLwP7exErjN6lyyq3OSQ=
@@ -525,6 +533,7 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -612,6 +621,8 @@ gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=