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refactor: use if/elif/else instead of case for HTTP client detection

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Avoids shellcheck SC2195 warnings caused by Terraform $${} escaping
that shellcheck doesn't understand. Split into fetch() for stdout
output and fetch_to_file() for downloading to disk, matching the
pattern used in vault-github module.
This commit is contained in:
Atif Ali 2025-12-29 16:35:44 +00:00
parent f295070544
commit 7cdc1069b1
1 changed files with 26 additions and 32 deletions
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42
registry/coder/modules/vault-cli/run.sh
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@ -6,40 +6,34 @@ VAULT_TOKEN=${VAULT_TOKEN}
INSTALL_DIR=${INSTALL_DIR}
VAULT_CLI_VERSION=${VAULT_CLI_VERSION}
# Fetch URL content. If dest is provided, write to file; otherwise output to stdout.
# Usage: fetch <url> [dest]
# Fetch URL content to stdout
fetch() {
url="$1"
dest="$${2:-}"
# Detect HTTP client on first run
if [ -z "$${HTTP_CLIENT:-}" ]; then
if command -v curl > /dev/null 2>&1; then
HTTP_CLIENT="curl"
curl -sSL --fail "$${url}"
elif command -v wget > /dev/null 2>&1; then
HTTP_CLIENT="wget"
wget -qO- "$${url}"
elif command -v busybox > /dev/null 2>&1; then
HTTP_CLIENT="busybox"
busybox wget -qO- "$${url}"
else
printf "curl, wget, or busybox is not installed. Please install curl or wget in your image.\n"
return 1
fi
fi
}
if [ -n "$${dest}" ]; then
# shellcheck disable=SC2195
case "$${HTTP_CLIENT}" in
curl) curl -sSL --fail "$${url}" -o "$${dest}" ;;
wget) wget -O "$${dest}" "$${url}" ;;
busybox) busybox wget -O "$${dest}" "$${url}" ;;
esac
# Download URL to a file
fetch_to_file() {
dest="$1"
url="$2"
if command -v curl > /dev/null 2>&1; then
curl -sSL --fail "$${url}" -o "$${dest}"
elif command -v wget > /dev/null 2>&1; then
wget -O "$${dest}" "$${url}"
elif command -v busybox > /dev/null 2>&1; then
busybox wget -O "$${dest}" "$${url}"
else
# shellcheck disable=SC2195
case "$${HTTP_CLIENT}" in
curl) curl -sSL --fail "$${url}" ;;
wget) wget -qO- "$${url}" ;;
busybox) busybox wget -qO- "$${url}" ;;
esac
printf "curl, wget, or busybox is not installed. Please install curl or wget in your image.\n"
return 1
fi
}
@ -131,7 +125,7 @@ install() {
cd "$${TEMP_DIR}" || return 1
printf "Downloading from %s\n" "$${DOWNLOAD_URL}"
if ! fetch "$${DOWNLOAD_URL}" vault.zip; then
if ! fetch_to_file vault.zip "$${DOWNLOAD_URL}"; then
printf "Failed to download Vault.\n"
rm -rf "$${TEMP_DIR}"
return 1