go: Install and use legacy packages for upgrade tests

.buildkite/go/build.sh

@@ -29,6 +29,10 @@ pushd go
   make all GO_BUILD_E2E_COVERAGE=1
 popd
 
-pushd tests/upgrade
-  make all
+pushd tests/upgrade/pre
+  OASIS_GO=go1.19.10 make all
 popd
+
+pushd tests/upgrade/post
+  OASIS_GO=go1.20.2 make all
+popd

.buildkite/go/lint.sh

@@ -19,5 +19,5 @@ pushd go
 popd
 
 pushd tests/upgrade
-  make lint
+  OASIS_GOLANGCI_LINT=golangci-lint1.51.2 make lint
 popd

.buildkite/scripts/test_upgrade.sh

@@ -11,11 +11,6 @@
 # https://buildkite.com/docs/pipelines/writing-build-scripts
 set -euxo pipefail
 
-# Install Go version needed to build the stable branch.
-# See: https://github.com/lucas-clemente/quic-go/wiki/quic-go-and-Go-versions
-go install golang.org/dl/go1.19.10@latest
-go1.19.10 download
-
 # Branches to test.
 pre_upgrade_git_branch="stable/22.2.x"
 post_upgrade_git_branch="master"

common.mk

@@ -124,6 +124,12 @@ define ENSURE_GIT_VERSION_EQUALS_PUNCH_VERSION =
 	fi
 endef
 
+# Golangci-lint binary to use for all Golangci-lint commands.
+export OASIS_GOLANGCI_LINT ?= golangci-lint
+
+# Golangci-lint command prefix to use in all Golangci-lint commands.
+GOLANGCI_LINT := env -u GOPATH $(OASIS_GOLANGCI_LINT)
+
 # Go binary to use for all Go commands.
 export OASIS_GO ?= go
 

docker/oasis-core-dev/Dockerfile

@@ -14,6 +14,11 @@ ARG RUST_NIGHTLY_VERSION=2023-01-16
 ARG JEMALLOC_VERSION=5.2.1
 ARG JEMALLOC_CHECKSUM=34330e5ce276099e2e8950d9335db5a875689a4c6a56751ef3b1d8c537f887f6
 
+# Legacy package versions (upgrade tests).
+# See: https://github.com/lucas-clemente/quic-go/wiki/quic-go-and-Go-versions
+ARG LEGACY_GO_VERSIONS="1.19.10 1.20.2"
+ARG LEGACY_GOLANGCILINT_VERSION=1.51.2
+
 ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update -qq && apt-get upgrade -qq && apt-get install -qq \
@@ -57,12 +62,20 @@ RUN curl "https://sh.rustup.rs" -sfo rustup.sh && \
 RUN wget https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz && \
     tar -C /usr/local -xzf go${GO_VERSION}.linux-amd64.tar.gz && \
     rm go${GO_VERSION}.linux-amd64.tar.gz && \
+    # Install legacy Go versions.
+    for LEGACY_GO_VERSION in ${LEGACY_GO_VERSIONS}; do \
+    go install golang.org/dl/go${LEGACY_GO_VERSION}@latest && \
+    go${LEGACY_GO_VERSION} download; \
+    done && \
+    # Prepare folder for binaries.
     mkdir -p /go/bin && \
     # Install a specific version of protoc-gen-go.
     go install google.golang.org/protobuf/cmd/protoc-gen-go@v${GO_PROTOC_GEN_GO_VERSION} && \
     # Install golangci-lint.
     curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /tmp/bin v${GOLANGCILINT_VERSION} && \
     mv /tmp/bin/golangci-lint /go/bin && \
+    curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /tmp/bin v${LEGACY_GOLANGCILINT_VERSION} && \
+    mv /tmp/bin/golangci-lint /go/bin/golangci-lint${LEGACY_GOLANGCILINT_VERSION} && \
     # Install gocovmerge for e2e coverage.
     go install github.com/wadey/gocovmerge@${GOCOVMERGE_VERSION} && \
     # Install nancy for auditing dependencies.

go/Makefile

@@ -69,7 +69,7 @@ fmt:
 # Lint.
 lint:
 	@$(ECHO) "$(CYAN)*** Running Go linters...$(OFF)"
-	@env -u GOPATH golangci-lint run --timeout 4m
+	@$(GOLANGCI_LINT) run --timeout 4m
 
 lint-mod-tidy:
 	@$(ECHO) "$(CYAN)*** Checking go mod tidy...$(OFF)"

tests/upgrade/post/Makefile

@@ -27,7 +27,7 @@ fmt:
 # Lint.
 lint:
 	@$(ECHO) "$(CYAN)*** Running Go linters...$(OFF)"
-	@env -u GOPATH golangci-lint run --timeout 4m
+	@$(GOLANGCI_LINT) run --timeout 4m
 
 lint-mod-tidy:
 	@$(ECHO) "$(CYAN)*** Checking go mod tidy...$(OFF)"

tests/upgrade/pre/Makefile

@@ -27,7 +27,7 @@ fmt:
 # Lint.
 lint:
 	@$(ECHO) "$(CYAN)*** Running Go linters...$(OFF)"
-	@env -u GOPATH golangci-lint run --timeout 4m
+	@$(GOLANGCI_LINT) run --timeout 4m
 
 lint-mod-tidy:
 	@$(ECHO) "$(CYAN)*** Checking go mod tidy...$(OFF)"