Merge pull request docker#1059 from thaJeztah/rpm_dnf5_compat

[master] install_rpm_containerd: add support for dnf5

install-containerd-helpers

@@ -24,15 +24,29 @@ function install_rpm_containerd() {
 	# so this logic works for both cases.
 	# (See also same logic in install_debian_containerd)
 
-	if dnf --version; then
+	if command -v dnf5; then
+		dnf --version
+
+		# FIXME(thaJeztah); strip empty lines as workaround for https://github.com/rpm-software-management/dnf5/issues/1603
+		TMP_REPO_FILE="$(mktemp --dry-run)"
+		curl -fsSL "${REPO_URL}" | tr -s '\n' > "${TMP_REPO_FILE}"
+		dnf config-manager addrepo --save-filename=docker-ce.repo  --overwrite --from-repofile="${TMP_REPO_FILE}"
+		rm -f "${TMP_REPO_FILE}"
+		# dnf config-manager addrepo --save-filename=docker-ce.repo --from-repofile="${REPO_URL}"
+		dnf config-manager setopt 'docker-ce-*.enabled=0'
+		dnf config-manager setopt 'docker-ce-test.enabled=1'
+		dnf makecache
+	elif command -v dnf; then
+		dnf --version
+
 		dnf config-manager --add-repo "${REPO_URL}"
-		dnf config-manager --set-disabled docker-ce-*
-		dnf config-manager --set-enabled docker-ce-test
+		dnf config-manager --set-disabled 'docker-ce-*'
+		dnf config-manager --set-enabled 'docker-ce-test'
 		dnf makecache
 	else
 		yum-config-manager --add-repo "${REPO_URL}"
-		yum-config-manager --disable docker-ce-*
-		yum-config-manager --enable docker-ce-test
+		yum-config-manager --disable 'docker-ce-*'
+		yum-config-manager --enable 'docker-ce-test'
 		yum makecache
 	fi
 }