[v3] Update fetch-configlet script to work with configlet v3

bin/fetch-configlet

@@ -5,48 +5,54 @@ set -eo pipefail
 readonly LATEST='https://api.github.com/repos/exercism/configlet/releases/latest'
 
 case "$(uname)" in
-    (Darwin*)   OS='mac'     ;;
-    (Linux*)    OS='linux'   ;;
-    (Windows*)  OS='windows' ;;
-    (MINGW*)    OS='windows' ;;
-    (MSYS_NT-*) OS='windows' ;;
-    (*)         OS='linux'   ;;
+  Darwin*)   os='mac'     ;;
+  Linux*)    os='linux'   ;;
+  Windows*)  os='windows' ;;
+  MINGW*)    os='windows' ;;
+  MSYS_NT-*) os='windows' ;;
+  *)         os='linux'   ;;
 esac
 
-case "$OS" in
-    (windows*) EXT='zip' ;;
-    (*)        EXT='tgz' ;;
+case "${os}" in
+  windows*) ext='zip' ;;
+  *)        ext='tgz' ;;
 esac
 
 case "$(uname -m)" in
-    (*64*)  ARCH='64bit' ;;
-    (*686*) ARCH='32bit' ;;
-    (*386*) ARCH='32bit' ;;
-    (*)     ARCH='64bit' ;;
+  *64*)  arch='64bit' ;;
+  *686*) arch='32bit' ;;
+  *386*) arch='32bit' ;;
+  *)     arch='64bit' ;;
 esac
 
-if [ -z "${GITHUB_TOKEN}" ]
-then
-    HEADER=''
-else
-    HEADER="authorization: Bearer ${GITHUB_TOKEN}"
+curlopts=(
+  --silent
+  --show-error
+  --fail
+  --location
+  --retry 3
+)
+
+if [[ -n "${GITHUB_TOKEN}" ]]; then
+  curlopts+=(--header "authorization: Bearer ${GITHUB_TOKEN}")
 fi
 
-FILENAME="configlet-${OS}-${ARCH}.${EXT}"
+suffix="${os}-${arch}.${ext}"
 
-get_url () {
-    curl --header "$HEADER" -s "$LATEST" |
-        awk -v filename=$FILENAME '$1 ~ /browser_download_url/ && $2 ~ filename { print $2 }' |
-        tr -d '"'
+get_download_url() {
+  curl "${curlopts[@]}" --header 'Accept: application/vnd.github.v3+json' "${LATEST}" |
+    grep "\"browser_download_url\": \".*/download/.*/configlet.*${suffix}\"$" |
+    cut -d'"' -f4
 }
 
-URL=$(get_url)
+download_url="$(get_download_url)"
+output_dir="bin"
+output_path="${output_dir}/latest-configlet.${ext}"
+curl "${curlopts[@]}" --output "${output_path}" "${download_url}"
 
-case "$EXT" in
-    (*zip)
-        curl --header "$HEADER" -s --location "$URL" -o bin/latest-configlet.zip
-        unzip bin/latest-configlet.zip -d bin/
-        rm bin/latest-configlet.zip
-        ;;
-    (*) curl --header "$HEADER" -s --location "$URL" | tar xz -C bin/ ;;
+case "${ext}" in
+  *zip) unzip "${output_path}" -d "${output_dir}"   ;;
+  *)    tar xzf "${output_path}" -C "${output_dir}" ;;
 esac
+
+rm -f "${output_path}"

bin/fetch-configlet.ps1

@@ -1,24 +1,26 @@
-Function DownloadUrl ([string] $FileName, $Headers) {
-    $latestUrl = "https://api.github.com/repos/exercism/configlet/releases/latest"
-    $json = Invoke-RestMethod -Headers $Headers -Uri $latestUrl
-    $json.assets | Where-Object { $_.browser_download_url -match $FileName } | Select-Object -ExpandProperty browser_download_url
-}
+$ErrorActionPreference = "Stop"
+$ProgressPreference = "SilentlyContinue"
 
-Function Headers {
-    If ($GITHUB_TOKEN) { @{ Authorization = "Bearer ${GITHUB_TOKEN}" } } Else { @{ } }
+$requestOpts = @{
+    Headers = If ($env:GITHUB_TOKEN) { @{ Authorization = "Bearer ${env:GITHUB_TOKEN}" } } Else { @{ } }
+    MaximumRetryCount = 3
+    RetryIntervalSec = 1
 }
 
-Function Arch {
-    If ([Environment]::Is64BitOperatingSystem) { "64bit" } Else { "32bit" }
+$arch = If ([Environment]::Is64BitOperatingSystem) { "64bit" } Else { "32bit" }
+$fileName = "configlet-windows-$arch.zip"
+
+Function Get-DownloadUrl {
+    $latestUrl = "https://api.github.com/repos/exercism/configlet/releases/latest"
+    Invoke-RestMethod -Uri $latestUrl -PreserveAuthorizationOnRedirect @requestOpts
+    | Select-Object -ExpandProperty assets
+    | Where-Object { $_.browser_download_url -match $FileName }
+    | Select-Object -ExpandProperty browser_download_url
 }
 
-$arch = Arch
-$headers = Headers
-$fileName = "configlet-windows-$arch.zip"
+$downloadUrl = Get-DownloadUrl
 $outputDirectory = "bin"
 $outputFile = Join-Path -Path $outputDirectory -ChildPath $fileName
-$zipUrl = DownloadUrl -FileName $fileName -Headers $headers
-
-Invoke-WebRequest -Headers $headers -Uri $zipUrl -OutFile $outputFile
+Invoke-WebRequest -Uri $downloadUrl -OutFile $outputFile @requestOpts
 Expand-Archive $outputFile -DestinationPath $outputDirectory -Force
 Remove-Item -Path $outputFile