From 791641bb2d0ab93955b218b9bc6f5335b8ead243 Mon Sep 17 00:00:00 2001
From: Eno Compton <enocom@google.com>
Date: Thu, 17 Mar 2022 10:29:05 -0600
Subject: [PATCH] feat: drop support for Go 1.15 (#145)

And add support for Go 1.18.
---
 .github/update_go.sh         | 37 ++++++++++++++++++++++++++++++++++++
 .github/workflows/cover.yaml |  2 +-
 .github/workflows/lint.yaml  |  4 ++--
 .github/workflows/tests.yaml |  2 +-
 4 files changed, 41 insertions(+), 4 deletions(-)
 create mode 100755 .github/update_go.sh

diff --git a/.github/update_go.sh b/.github/update_go.sh
new file mode 100755
index 00000000..8085c19d
--- /dev/null
+++ b/.github/update_go.sh
@@ -0,0 +1,37 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# update_go.sh updates all GitHub Action workflows to use the provided Go
+# version.
+
+usage() {
+    echo "Missing Go version."
+    echo "usage: .github/update_go.sh <version>"
+    echo "  Example:"
+    echo "    .github/update_go.sh 1.18"
+}
+
+if [ -z "$1" ]
+  then
+    usage
+fi
+
+# Replace all usages of "go-version: x.xx" with the provided version.
+grep -lr "go-version: \"" .github/workflows | xargs \
+    sed -i "s/go-version: \".*\"/go-version: \"$1\"/g"
+
+# Replace the matrix of Go versions with the last two versions and the provided
+# version.
+grep -lr "go-version: \[" .github | xargs \
+    sed -i "s/\[\(.*\), \(.*\), \(.*\)\]/\[\2, \3, $1\]/"
diff --git a/.github/workflows/cover.yaml b/.github/workflows/cover.yaml
index b319a8b5..22e7687a 100644
--- a/.github/workflows/cover.yaml
+++ b/.github/workflows/cover.yaml
@@ -22,7 +22,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.17"
+          go-version: "1.18"
 
       - name: Checkout base branch
         uses: actions/checkout@v3
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 4ad8b5e5..7ab4c78d 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -23,9 +23,9 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.17"
+          go-version: "1.18"
       - name: Install goimports
-        run: go get golang.org/x/tools/cmd/goimports
+        run: go install golang.org/x/tools/cmd/goimports@latest
       - name: Checkout code
         uses: actions/checkout@v3
       - run: goimports -w .
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 5d297b3c..b25ae87f 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [1.15, 1.16, 1.17]
+        go-version: [1.16, 1.17, 1.18]
     steps:
       - name: Setup Go ${{ matrix.go-version }}
         uses: actions/setup-go@v3