Revert "Upgrade to 1.13" (#3402)

This reverts commit 3c793e5.

.travis.yml

@@ -1,7 +1,7 @@
 dist: xenial
 
 language: go
-go: "1.13.x"
+go: "1.12.x"
 go_import_path: /skaffold
 
 git:

DEVELOPMENT.md

@@ -9,7 +9,7 @@ This doc explains the development workflow so you can get started
 You must install these tools:
 
 1. [`go`](https://golang.org/doc/install): The language skaffold is
-   built in (version >= go 1.13)
+   built in (version >= go 1.12)
 1. [`git`](https://help.github.com/articles/set-up-git/): For source control
 1. [`make`](https://www.gnu.org/software/make/): For building skaffold.
 1. [`golangci-lint`](https://github.com/golangci/golangci-lint): You can use the

deploy/cross/Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM karalabe/xgo-1.13.4
+FROM karalabe/xgo-1.12.13
 
 ARG PROJECT
 ARG FLAG_LDFLAGS

deploy/skaffold/Dockerfile

@@ -117,7 +117,7 @@ RUN apt-get update && apt-get install --no-install-recommends --no-install-sugge
     jq \
     apt-transport-https && \
     rm -rf /var/lib/apt/lists/*
-COPY --from=golang:1.13 /usr/local/go /usr/local/go
+COPY --from=golang:1.12 /usr/local/go /usr/local/go
 ENV PATH /usr/local/go/bin:/root/go/bin:$PATH
 WORKDIR /skaffold
 COPY . .

deploy/webhook/Dockerfile

@@ -44,7 +44,7 @@ COPY --from=download-docsy /docsy ./themes/docsy
 COPY --from=download-hugo /hugo /usr/local/bin/
 COPY --from=download-kubectl /kubectl /usr/local/bin/
 
-FROM golang:1.13 as webhook
+FROM golang:1.12 as webhook
 WORKDIR /skaffold
 COPY . .
 RUN go build -mod=vendor -o /webhook webhook/webhook.go

go.mod

@@ -1,6 +1,6 @@
 module github.com/GoogleContainerTools/skaffold
 
-go 1.13
+go 1.12
 
 replace (
 	github.com/Azure/go-autorest => github.com/Azure/go-autorest v13.0.1+incompatible

go.sum

@@ -388,7 +388,6 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/profile v1.2.1/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
 github.com/pmezard/go-difflib v0.0.0-20151028094244-d8ed2627bdf0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
@@ -460,7 +459,6 @@ github.com/stretchr/testify v0.0.0-20151208002404-e3a8ff8ce365/go.mod h1:a8OnRci
 github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 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 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/tektoncd/pipeline v0.5.1-0.20190731183258-9d7e37e85bf8 h1:NftWnvqs4oGBatJExafxwZ/GzQa2+U3CZU4QKEcmWKA=
@@ -702,7 +700,6 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gotest.tools v2.1.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
-gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

hack/tools/go.mod

@@ -1,6 +1,6 @@
 module tools
 
-go 1.13
+go 1.12
 
 require (
 	github.com/corneliusweig/release-notes v0.0.0-20191014214505-0be5c7c66752