fix: improve Radius CLI installer error output

.github/workflows/long-running-azure.yaml

@@ -143,8 +143,9 @@ jobs:
         run: |
           # Install the latest Radius CLI, including release candidates if available.
           # INSTALL_DIR places rad directly into the workspace bin directory — no copy needed.
+          set -o pipefail
           mkdir -p "$GITHUB_WORKSPACE/bin"
-          wget -q "https://raw.githubusercontent.com/radius-project/radius/main/deploy/install.sh" -O - | INSTALL_DIR="$GITHUB_WORKSPACE/bin" INCLUDE_RC=true /bin/bash
+          wget --no-verbose "https://raw.githubusercontent.com/radius-project/radius/main/deploy/install.sh" -O - | INSTALL_DIR="$GITHUB_WORKSPACE/bin" INCLUDE_RC=true /bin/bash
 
       - name: Verify CLI installation
         run: |

deploy/install.sh

@@ -262,15 +262,25 @@ getLatestRelease() {
 
     if [[ "${INCLUDE_RC}" == "true" ]]; then
         if [[ "${RADIUS_HTTP_REQUEST_CLI}" == "curl" ]]; then
-            latest_release=$(curl -s "${radReleaseUrl}" | grep \"tag_name\" | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
+            latest_release=$(curl --fail --show-error --silent --location \
+                "${radReleaseUrl}" | grep \"tag_name\" | awk 'NR==1{print $2}' |
+                sed -n 's/\"\(.*\)\",/\1/p')
         else
-            latest_release=$(wget -q --header="Accept: application/json" -O - "${radReleaseUrl}" | grep \"tag_name\" | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
+            latest_release=$(wget --no-verbose \
+                --header="Accept: application/json" -O - "${radReleaseUrl}" |
+                grep \"tag_name\" | awk 'NR==1{print $2}' |
+                sed -n 's/\"\(.*\)\",/\1/p')
         fi
     else
         if [[ "${RADIUS_HTTP_REQUEST_CLI}" == "curl" ]]; then
-            latest_release=$(curl -s "${radReleaseUrl}" | grep \"tag_name\" | grep -v rc | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
+            latest_release=$(curl --fail --show-error --silent --location \
+                "${radReleaseUrl}" | grep \"tag_name\" | grep -v rc |
+                awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
         else
-            latest_release=$(wget -q --header="Accept: application/json" -O - "${radReleaseUrl}" | grep \"tag_name\" | grep -v rc | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
+            latest_release=$(wget --no-verbose \
+                --header="Accept: application/json" -O - "${radReleaseUrl}" |
+                grep \"tag_name\" | grep -v rc | awk 'NR==1{print $2}' |
+                sed -n 's/\"\(.*\)\",/\1/p')
         fi
     fi
 
@@ -313,9 +323,10 @@ downloadFile() {
 
         echo "Downloading ${download_url}..."
         if [[ "${RADIUS_HTTP_REQUEST_CLI}" == "curl" ]]; then
-            curl -SsL "${download_url}" -o "${artifact_tmp_file}"
+            curl --fail --show-error --silent --location "${download_url}" \
+                -o "${artifact_tmp_file}"
         else
-            wget -q -O "${artifact_tmp_file}" "${download_url}"
+            wget --no-verbose -O "${artifact_tmp_file}" "${download_url}"
         fi
     fi
 

deploy/test-install.sh

@@ -357,6 +357,39 @@ test_edge_version_with_oras() {
     assert_rad_installed "${dir}"
 }
 
+test_latest_release_curl_error_visible() {
+    local dir
+    dir=$(make_test_dir "latest-release-curl-error")
+    local bin_dir
+    bin_dir=$(make_test_dir "latest-release-curl-error-bin")
+    local tool tool_path
+    for tool in bash uname tr grep awk sed; do
+        tool_path=$(command -v "${tool}" 2>/dev/null) || continue
+        ln -sf "${tool_path}" "${bin_dir}/"
+    done
+
+    cat > "${bin_dir}/curl" << 'EOF'
+#!/bin/bash
+for argument in "$@"; do
+    if [[ "${argument}" == "--show-error" ]]; then
+        echo "curl: (22) simulated HTTP error" >&2
+        break
+    fi
+done
+exit 22
+EOF
+    chmod +x "${bin_dir}/curl"
+
+    echo "  CMD: PATH=<failing-curl> ${INSTALLER} --install-dir ${dir}"
+    if LAST_OUTPUT=$(PATH="${bin_dir}" "${INSTALLER}" \
+        --install-dir "${dir}" 2>&1); then
+        echo "  ASSERT FAILED: expected non-zero exit for HTTP error"
+        return 1
+    fi
+    echo "${LAST_OUTPUT}"
+    assert_contains "${LAST_OUTPUT}" "curl: (22) simulated HTTP error"
+}
+
 test_flag_overrides_install_dir_env() {
     local env_dir flag_dir
     env_dir=$(make_test_dir "env-dir-ignored")
@@ -499,6 +532,7 @@ run_test "PATH hint shown for non-PATH dir" test_path_hint_shown
 run_test "version with v prefix" test_version_with_v_prefix
 run_test "edge version without oras fails" test_edge_version_without_oras
 run_test "edge version with oras succeeds" test_edge_version_with_oras
+run_test "latest release curl error is visible" test_latest_release_curl_error_visible
 run_test "--install-dir flag overrides INSTALL_DIR env" test_flag_overrides_install_dir_env
 run_test "INSTALL_DIR env overrides RADIUS_INSTALL_DIR" test_install_dir_env_overrides_radius_install_dir
 run_test "warning for existing rad elsewhere in PATH" test_warn_existing_rad_elsewhere