feat(cli): Add a PowerShell installer for Windows

.github/workflows/install-scripts.yml

@@ -0,0 +1,76 @@
+name: Install Scripts
+
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - ".github/workflows/install-scripts.yml"
+      - "packages/cli/install"
+      - "packages/cli/install.ps1"
+  pull_request:
+    paths:
+      - ".github/workflows/install-scripts.yml"
+      - "packages/cli/install"
+      - "packages/cli/install.ps1"
+
+jobs:
+  unix-bash:
+    name: bash installs latest (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    env:
+      SENTRY_CLI_NO_TELEMETRY: "1"
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install through curl | bash
+        run: |
+          export SENTRY_INSTALL_DIR="$RUNNER_TEMP/sentry-bin"
+          bash < packages/cli/install
+          installed=$("$SENTRY_INSTALL_DIR/sentry" --version)
+          echo "Installed sentry $installed"
+
+      - name: Find sentry on PATH in a later step
+        run: |
+          echo "Resolved $(command -v sentry)"
+          sentry --version
+
+  windows-powershell:
+    name: ${{ matrix.shell }} installs latest
+    runs-on: windows-latest
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        # pwsh is PowerShell 7; powershell is the Windows PowerShell 5.1 that
+        # ships with Windows.
+        shell: [pwsh, powershell]
+    defaults:
+      run:
+        shell: ${{ matrix.shell }}
+    env:
+      SENTRY_CLI_NO_TELEMETRY: "1"
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install through Invoke-Expression
+        run: |
+          $env:SENTRY_INSTALL_DIR = Join-Path $env:RUNNER_TEMP 'sentry-bin'
+          Get-Content -Raw -LiteralPath packages/cli/install.ps1 | Invoke-Expression
+          $installed = & (Join-Path $env:SENTRY_INSTALL_DIR 'sentry.exe') --version
+          if ($LASTEXITCODE -ne 0) { throw "sentry --version exited with $LASTEXITCODE" }
+          "Installed sentry $installed"
+
+      - name: Find sentry on PATH in a later step
+        run: |
+          $command = Get-Command sentry -ErrorAction Stop
+          "Resolved $($command.Source)"
+          sentry --version
+          if ($LASTEXITCODE -ne 0) { throw "sentry --version exited with $LASTEXITCODE" }

apps/cli-docs/public/install.ps1

@@ -0,0 +1 @@
+../../../packages/cli/install.ps1

apps/cli-docs/src/content/docs/getting-started.mdx

@@ -55,6 +55,26 @@ You can also set `SENTRY_INSTALL_DIR` to override the binary installation direct
 curl https://cli.sentry.dev/install -fsS | SENTRY_INSTALL_DIR="$HOME/.local/bin" bash
 ```
 
+### Windows (PowerShell)
+
+On Windows, install the latest stable release from PowerShell:
+
+```powershell
+irm https://cli.sentry.dev/install.ps1 | iex
+```
+
+The PowerShell installer adds the install directory to your user `PATH`. It
+reads the same `SENTRY_VERSION`, `SENTRY_INSTALL_DIR`, and `SENTRY_INIT`
+environment variables as the install script. Set `SENTRY_NO_MODIFY_PATH=1` to
+leave `PATH` unchanged:
+
+```powershell
+$env:SENTRY_VERSION = "0.42.2"; irm https://cli.sentry.dev/install.ps1 | iex
+```
+
+It installs stable releases only. To switch to nightly afterwards, run
+`sentry cli upgrade nightly`.
+
 ### Supported Platforms
 
 {/* GENERATED:START platform-support */}
@@ -81,7 +101,7 @@ curl https://cli.sentry.dev/install -fsS | SENTRY_INSTALL_DIR="$HOME/.local/bin"
     <tr>
       <td><strong>Windows</strong></td>
       <td>x64</td>
-      <td>Via Git Bash, MSYS2, or WSL</td>
+      <td>Via PowerShell, Git Bash, MSYS2, or WSL</td>
     </tr>
   </tbody>
 </table>

apps/cli-docs/src/content/docs/index.mdx

@@ -23,6 +23,7 @@ import sectionBg3 from '../../assets/section-bg-3.png';
 <div class="hero-command">
 <InstallSelector options={[
   { label: "curl", command: "curl https://cli.sentry.dev/install -fsS | bash" },
+  { label: "powershell", command: "irm https://cli.sentry.dev/install.ps1 | iex" },
   { label: "brew", command: "brew install getsentry/tools/sentry" },
   { label: "npx", command: "npx sentry@latest" },
   { label: "npm", command: "npm install -g sentry" },

packages/cli/install

@@ -187,10 +187,11 @@ tmpdir="${TMPDIR:-${TMP:-${TEMP:-/tmp}}}"
 tmp_binary="${tmpdir}/sentry-install-$$${suffix}"
 blob_headers="${tmpdir}/sentry-install-headers-$$"
 blob_file="${tmpdir}/sentry-install-blob-$$"
+metadata_file="${tmpdir}/sentry-install-metadata-$$"
 version=""
 
 # Clean up temporary files after setup or on failure.
-trap 'rm -f "$tmp_binary" "$blob_headers" "$blob_file"' EXIT
+trap 'rm -f "$tmp_binary" "$blob_headers" "$blob_file" "$metadata_file"' EXIT
 
 if [[ "$requested_version" == "nightly" ]]; then
   # Nightly build: download from GHCR via OCI blob protocol.
@@ -273,19 +274,78 @@ if [[ "$requested_version" == "nightly" ]]; then
   esac
 
 else
-  # Stable build: resolve version and download from GitHub Releases.
-
-  if [[ -z "$requested_version" ]]; then
-    # Craft publishes this app's stable version to the release registry.
-    # Consume the full response: an early parser exit can cause SIGPIPE under pipefail.
-    if metadata=$(curl -fsSL --max-time 10 https://release-registry.services.sentry.io/apps/sentry/latest); then
-      version=$(printf '%s\n' "$metadata" \
-        | sed -n 's/.*"version": *"\([^"]*\)".*/\1/p')
+  # Stable build. Sentry's release registry is the source of truth for
+  # versions, download URLs, and checksums. GitHub is only a fallback for
+  # registry outages.
+  if [[ -n "$requested_version" ]]; then
+    version="${requested_version#cli@}"
+    version="${version#v}"
+    if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?$ ]]; then
+      die "Invalid release version: ${version}" "resolve-version"
     fi
-    if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-      echo -e "${MUTED}Could not resolve latest version from Sentry's release registry. Trying GitHub...${NC}" >&2
+    registry_path="$version"
+  else
+    registry_path="latest"
+  fi
+
+  asset="sentry-${os}-${arch}${suffix}"
+  gz_url=""
+  gz_sha=""
+  raw_url=""
+  raw_sha=""
+  registry_version=""
+  registry_status=$(curl -sS --max-time 10 -o "$metadata_file" -w '%{http_code}' \
+    "https://release-registry.services.sentry.io/apps/sentry/${registry_path}" 2>/dev/null) \
+    || registry_status="000"
+  if [[ "$registry_status" == "200" ]]; then
+    # Asset names, URLs, and checksums contain no whitespace, so stripping it
+    # lets the parser below treat compact and pretty-printed JSON the same.
+    metadata=$(tr -d ' \t\r\n' < "$metadata_file")
+    registry_version=$(printf '%s\n' "$metadata" \
+      | sed -n 's/.*"version":"\([^"]*\)".*/\1/p')
+    if [[ "$registry_path" == "latest" && ! "$registry_version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+      registry_version=""
+    elif [[ "$registry_path" != "latest" && "$registry_version" != "$version" ]]; then
+      registry_version=""
+    fi
+  fi
+
+  if [[ -n "$registry_version" ]]; then
+    version="$registry_version"
+    # Print the url and sha256 of one `files` entry, one per line.
+    registry_file() {
+      printf '%s\n' "$metadata" | awk -v key="\"$1\":{" '
+        {
+          i = index($0, key)
+          if (!i) exit
+          s = substr($0, i + length(key) - 1)
+          n = length(s)
+          depth = 0
+          for (j = 1; j <= n; j++) {
+            c = substr(s, j, 1)
+            if (c == "{") depth++
+            else if (c == "}" && --depth == 0) break
+          }
+          obj = substr(s, 1, j)
+          url = ""
+          sha = ""
+          if (match(obj, /"url":"https:\/\/[^"]*"/)) url = substr(obj, RSTART + 7, RLENGTH - 8)
+          if (match(obj, /"sha256-hex":"[0-9a-f]+"/)) sha = substr(obj, RSTART + 14, RLENGTH - 15)
+          print url
+          print sha
+        }'
+    }
+    { read -r gz_url || true; read -r gz_sha || true; } <<< "$(registry_file "${asset}.gz")"
+    { read -r raw_url || true; read -r raw_sha || true; } <<< "$(registry_file "$asset")"
+    if [[ -z "$gz_url" && -z "$raw_url" ]]; then
+      die "Sentry CLI ${version} has no ${asset} build" "resolve-asset"
+    fi
+  elif [[ "$registry_status" == "404" && "$registry_path" != "latest" ]]; then
+    die "Unknown Sentry CLI version: ${version}" "resolve-version"
+  else
+    echo -e "${MUTED}Could not resolve ${registry_path} from Sentry's release registry. Trying GitHub...${NC}" >&2
+    if [[ "$registry_path" == "latest" ]]; then
       release_tag=""
-      # GitHub may have many pages of MCP releases before its newest CLI release.
       for page in {1..20}; do
         if ! releases=$(curl -fsSL "https://api.github.com/repos/getsentry/toolkit/releases?per_page=100&page=${page}"); then
           die "Failed to list Toolkit releases" "gh-version"
@@ -337,65 +397,45 @@ else
         fi
       done
       if [[ -z "$release_tag" ]]; then
-        if [[ "$releases" != "[]" ]]; then
-          die "Toolkit release pagination exceeded 20 pages" "gh-version"
-        fi
-        # Before the first Toolkit CLI release, use the legacy version only
-        # after checking whether that exact Toolkit tag exists.
-        if ! legacy_release=$(curl -fsSL 'https://api.github.com/repos/getsentry/cli/releases/latest'); then
-          die "Failed to fetch latest stable version from Sentry's release registry and GitHub. Retry or install a specific version with --version <version>." "resolve-version"
-        fi
-        release_tag=$(printf '%s\n' "$legacy_release" | sed -n 's/.*"tag_name": *"\([^"]*\)".*/\1/p')
-        if [[ ! "${release_tag#v}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-          die "Failed to fetch latest stable version from Sentry's release registry and GitHub. Retry or install a specific version with --version <version>." "resolve-version"
-        fi
+        die "Failed to fetch latest stable version from Sentry's release registry and GitHub. Retry or install a specific version with --version <version>." "resolve-version"
       fi
       version="${release_tag#cli@}"
-      version="${version#v}"
     fi
-  else
-    version="$requested_version"
-    version="${version#cli@}"
-    version="${version#v}"
-  fi
-
-  if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?$ ]]; then
-    die "Invalid release version: ${version}" "gh-version"
+    gz_url="https://github.com/getsentry/toolkit/releases/download/cli@${version}/${asset}.gz"
+    raw_url="${gz_url%.gz}"
+    echo -e "${MUTED}Warning: GitHub fallback downloads are not checksum-verified.${NC}" >&2
   fi
 
-  # Fall back to legacy only when GitHub confirms the exact Toolkit tag is absent.
-  if ! release_status=$(curl -sS -o /dev/null -w '%{http_code}' \
-    "https://api.github.com/repos/getsentry/toolkit/releases/tags/cli%40${version}"); then
-    die "Failed to check Toolkit release" "gh-version"
-  fi
-  case "$release_status" in
-    200) release_repo="getsentry/toolkit"; release_tag="cli@${version}" ;;
-    404)
-      if ! legacy_status=$(curl -sS -o /dev/null -w '%{http_code}' \
-        "https://api.github.com/repos/getsentry/cli/releases/tags/${version}"); then
-        die "Failed to check legacy CLI release" "gh-version"
-      fi
-      if [[ "$legacy_status" != "200" ]]; then
-        die "Legacy CLI release unavailable (HTTP ${legacy_status})" "gh-version"
-      fi
-      release_repo="getsentry/cli"
-      release_tag="$version"
-      ;;
-    *) die "Toolkit release check failed (HTTP ${release_status})" "gh-version" ;;
-  esac
-
-  filename="sentry-${os}-${arch}${suffix}"
-  url="https://github.com/${release_repo}/releases/download/${release_tag}/${filename}"
+  # Usage: verify_sha256 <file> <expected-hex>; a missing checksum is a no-op.
+  verify_sha256() {
+    [[ -z "$2" ]] && return 0
+    local actual
+    if command -v sha256sum >/dev/null 2>&1; then
+      actual=$(sha256sum "$1" | awk '{print $1}')
+    elif command -v shasum >/dev/null 2>&1; then
+      actual=$(shasum -a 256 "$1" | awk '{print $1}')
+    else
+      echo -e "${MUTED}Warning: sha256sum and shasum are unavailable; skipping checksum verification.${NC}" >&2
+      return 0
+    fi
+    if [[ "$actual" != "$2" ]]; then
+      die "Checksum mismatch for ${asset} ${version}: expected $2, got ${actual}" "checksum"
+    fi
+  }
 
   echo -e "${MUTED}Downloading sentry v${version}...${NC}"
 
-  # Try gzip-compressed download first (~60% smaller, ~37 MB vs ~99 MB).
-  # gunzip is POSIX and available on all Unix systems.
-  # Falls back to raw binary if the .gz asset doesn't exist yet.
-  if curl -fsSL "${url}.gz" 2>/dev/null | gunzip > "$tmp_binary" 2>/dev/null; then
-    : # Compressed download succeeded
+  # Prefer the gzip asset (~60% smaller, ~37 MB vs ~99 MB); fall back to the
+  # raw binary when it is missing.
+  if [[ -n "$gz_url" ]] && curl -fsSL -o "$blob_file" "$gz_url" 2>/dev/null; then
+    verify_sha256 "$blob_file" "$gz_sha"
+    gunzip -c "$blob_file" > "$tmp_binary"
+  elif [[ -n "$raw_url" ]]; then
+    curl -fsSL --progress-bar -o "$tmp_binary" "$raw_url" \
+      || die "Failed to download ${raw_url}" "download"
+    verify_sha256 "$tmp_binary" "$raw_sha"
   else
-    curl -fsSL --progress-bar "$url" -o "$tmp_binary"
+    die "Failed to download ${gz_url}" "download"
   fi
 fi