Add buf to CircleCI

.circleci/config.yml

@@ -743,6 +743,10 @@ jobs:
           sudo rm -rf /usr/bin/protoc
           sudo ./scripts/vagrant-linux-priv-protoc.sh
         name: install protoc
+    - run:
+        command: |
+          sudo ./scripts/vagrant-linux-priv-protoc.sh
+        name: install buf
     - run:
         command: "CCI_VERSION=\"0.1.5879\"\nCCI_SHA256=\"f178ea62c781aec06267017404f87983c87f171fd0e66ef3737916246ae66dd6\"\n\nURL=\"https://github.com/CircleCI-Public/circleci-cli/releases/download/v${CCI_VERSION}/circleci-cli_${CCI_VERSION}_linux_amd64.tar.gz\"\n\nmkdir -p /tmp/circleci-cli/\ncurl --fail --show-error --location \\\n  -o /tmp/circleci-cli/cli.tar.gz \"${URL}\"\n\necho \"$CCI_SHA256 /tmp/circleci-cli/cli.tar.gz\" | sha256sum -c\n\ntar -xz --strip-components=1 \\\n  -C /tmp/circleci-cli \\\n  -f /tmp/circleci-cli/cli.tar.gz \\\n  \"circleci-cli_${CCI_VERSION}_linux_amd64/circleci\" \n\nsudo cp /tmp/circleci-cli/circleci /usr/bin/circleci-local-cli\n\ncircleci-local-cli version\n"
         name: Install CircleCI CLI 0.1.5879

.circleci/config/commands/install-buf.yml

+steps:
+  - run:
+      name: install buf
+      command: |
+        sudo ./scripts/vagrant-linux-priv-protoc.sh

.circleci/config/jobs/lint-go.yml

@@ -3,6 +3,7 @@ steps:
   - checkout
   - run: apt-get update; apt-get install -y shellcheck sudo unzip
   - install-protoc
+  - install-buf
   - install-circleci-local-cli
   - run: make deps lint-deps
   - run: make check

scripts/vagrant-linux-priv-buf.sh

+#!/usr/bin/env bash
+
+set -o errexit
+
+# Make sure you grab the latest version
+VERSION=0.30.0
+DOWNLOAD=https://github.com/bufbuild/buf/releases/download/v${VERSION}/buf-Linux-x86_64.tar.gz
+
+function install() {
+    if [[ -e /usr/local/bin/buf ]] ; then
+        if [ "${VERSION}" = "$(buf  --version)" ] ; then
+            return
+        fi
+    fi
+
+    # Download
+    curl -sSL --fail "$DOWNLOAD" | tar -C /tmp -xvzf - buf/bin
+
+    # all buf files should be world-wide readable
+    chmod -R a+r /tmp/buf/bin/*
+
+    # Move buf binaries to /usr/local/bin/
+    mv /tmp/buf/bin/* /usr/local/bin/
+
+    # Link
+    ln -s /usr/local/bin/buf /usr/bin/buf
+    ln -s /usr/local/bin/protoc-gen-buf-check-breaking /usr/bin/protoc-gen-buf-check-breaking
+    ln -s /usr/local/bin/protoc-gen-buf-check-lint /usr/bin/protoc-gen-buf-check-lint
+
+    rm -rf /tmp/buf
+}
+
+install