chore(v7): remove releaser configuration (#299)

This commit removes the `.ldrelease` directory. The release process is
replaced with `release-please` Github Action.

Dockerfile.goreleaser

@@ -1,7 +1,5 @@
 # This is the Dockerfile used for release (published to dockerhub by goreleaser)
 
-# See .ldrelease/config.yml for an explanation of the build/release process.
-
 FROM alpine:3.19.0
 # See "Runtime platform versions" in CONTRIBUTING.md
 

scripts/update-go-release-version.sh

@@ -15,7 +15,6 @@ fi
 
 cd $(dirname $0)/..
 
-ldrelease_config_file=.ldrelease/config.yml
 github_config_file=.github/variables/go-versions.env
 dockerfile_for_tests=Dockerfile
 
@@ -24,17 +23,13 @@ function ensure_file_was_changed() {
   if (( $(diff ${filename} ${filename}.tmp | grep '^>' | wc -l) < 1 )); then
     echo "failed to update Go version in ${filename}; sed expression did not match any lines or matched more than one line"
     diff ${filename} ${filename}.tmp || true
-    for f in ${ldrelease_config_file} ${github_config_file} ${dockerfile_for_tests}; do
+    for f in ${github_config_file} ${dockerfile_for_tests}; do
       rm -r ${f}.tmp
     done
     exit 1
   fi
 }
 
-sed <${ldrelease_config_file} >${ldrelease_config_file}.tmp \
-  -e "/image:/s#cimg/go:[^ ]*#cimg/go:${LATEST_VERSION}#"
-ensure_file_was_changed ${ldrelease_config_file}
-
 sed <${github_config_file} >${github_config_file}.tmp \
   -e "s#latest=[^ ]*#latest=${LATEST_VERSION}#g" \
   -e "s#penultimate=[^ ]*#penultimate=${PENULTIMATE_VERSION}#g"
@@ -44,7 +39,7 @@ sed <${dockerfile_for_tests} >${dockerfile_for_tests}.tmp \
   -e "s#FROM *golang:[^-]*#FROM golang:${LATEST_VERSION}#"
 ensure_file_was_changed ${dockerfile_for_tests}
 
-for f in ${ldrelease_config_file} ${github_config_file} ${dockerfile_for_tests}; do
+for f in ${github_config_file} ${dockerfile_for_tests}; do
   mv ${f}.tmp ${f}
   echo "updated ${f}"
 done

scripts/verify-release-versions.sh

@@ -3,15 +3,11 @@
 # verify-release-versions.sh  (no parameters)
 # This script checks all of the configuration files where a Go version and/or Alpine version is
 # mentioned in the context of producing releases, and makes sure they are consistent with each other.
-# Unfortunately it's not possible to have these be sourced from just one file, because the CircleCI
-# configuration and the .ldrelease configuration require Docker image names to be hard-coded in their
-# respective config files.
 
 set -e
 
 cd $(dirname $0)/..
 
-ldrelease_config_file=.ldrelease/config.yml
 github_config_file=.github/variables/go-versions.env
 dockerfile_for_tests=Dockerfile
 dockerfile_for_releases=Dockerfile.goreleaser
@@ -21,12 +17,6 @@ function fail_for_file() {
   exit 1
 }
 
-LDRELEASE_GO_VERSION=$(sed <${ldrelease_config_file} -n 's#.*image: *cimg/go:\([0-9.]*\).*#\1#p')
-if [ -z "${LDRELEASE_GO_VERSION}" ]; then
-  fail_for_file Go ${ldrelease_config_file}
-fi
-echo "${ldrelease_config_file} (for building releases) is using Go ${LDRELEASE_GO_VERSION}"
-
 GITHUB_GO_VERSION=$(sed <${github_config_file} -n 's/^latest=\(.*\)$/\1/p')
 if [ -z "${GITHUB_GO_VERSION}" ]; then
   fail_for_file Go ${github_config_file}
@@ -39,8 +29,7 @@ if [ -z "${DOCKERFILE_TESTS_GO_VERSION}" ]; then
 fi
 echo "${dockerfile_for_tests} (for images in CI tests) is using Go ${DOCKERFILE_TESTS_GO_VERSION}"
 
-if [[ "${GITHUB_GO_VERSION}" != "${LDRELEASE_GO_VERSION}" || \
-     "${DOCKERFILE_TESTS_GO_VERSION}" != "${LDRELEASE_GO_VERSION}" ]]; then
+if [[ "${GITHUB_GO_VERSION}" != "${DOCKERFILE_TESTS_GO_VERSION}" ]]; then
   echo; echo "Go versions are out of sync!"
   exit 1
 fi
@@ -77,9 +66,8 @@ echo "Alpine versions are in sync"
 
 echo "Checking availability of Docker images..."
 for docker_image in \
-  "cimg/go:${LDRELEASE_GO_VERSION}" \
   "alpine:${DOCKERFILE_RELEASES_ALPINE_VERSION}" \
-  "golang:${LDRELEASE_GO_VERSION}-alpine${DOCKERFILE_TESTS_ALPINE_MINOR_VERSION}"
+  "golang:${GITHUB_GO_VERSION}-alpine${DOCKERFILE_TESTS_ALPINE_MINOR_VERSION}"
 do
   echo -n "  ${docker_image}... "
   docker pull ${docker_image} >/dev/null 2>/dev/null || { echo; echo "not available!"; exit 1; }