Honor quiet update mode in installers

install.ps1

@@ -17,6 +17,13 @@ param(
 )
 
 $ErrorActionPreference = "Stop"
+$Quiet = $env:DOSH_UPDATE_QUIET -and $env:DOSH_UPDATE_QUIET -ne "0"
+
+function Write-Info($Message) {
+    if (-not $Quiet) {
+        Write-Host $Message
+    }
+}
 
 function Require-Command($Name) {
     if (-not (Get-Command $Name -ErrorAction SilentlyContinue)) {
@@ -31,7 +38,7 @@ function Ensure-Cargo {
     if (-not (Get-Command winget -ErrorAction SilentlyContinue)) {
         throw "cargo not found and winget is unavailable; install Rust from https://rustup.rs or set DOSH_USE_PREBUILT=1"
     }
-    Write-Host "cargo not found; installing Rust toolchain with winget/rustup"
+    Write-Info "cargo not found; installing Rust toolchain with winget/rustup"
     winget install --id Rustlang.Rustup -e --accept-package-agreements --accept-source-agreements
     $cargoBin = Join-Path $HOME ".cargo\bin"
     if (Test-Path $cargoBin) {
@@ -358,7 +365,7 @@ function Install-Prebuilt {
     $extract = Join-Path $tmp "extract"
     try {
         New-Item -ItemType Directory -Force -Path $tmp, $extract | Out-Null
-        Write-Host "Trying Dosh prebuilt $(Release-ArtifactName)"
+        Write-Info "Trying Dosh prebuilt $(Release-ArtifactName)"
         Invoke-WebRequest -UseBasicParsing -Uri $url -OutFile $zip
         Verify-ArchiveChecksum $url $zip
         Expand-Archive -Force -Path $zip -DestinationPath $extract
@@ -427,7 +434,7 @@ if ($UsePrebuilt) {
         if ($BinaryRequired) {
             throw "prebuilt install failed and DOSH_BINARY_REQUIRED=1"
         }
-        Write-Host "Falling back to source build"
+        Write-Info "Falling back to source build"
         Install-FromSource
     }
 } else {
@@ -488,17 +495,17 @@ predict = true
 
 Add-UserPath $bindir
 
-Write-Host "Installed Dosh client to $bindir"
-Write-Host "Configured UDP port $Port"
-Write-Host ""
+Write-Info "Installed Dosh client to $bindir"
+Write-Info "Configured UDP port $Port"
+Write-Info ""
 $displayServer = if ($Server) { $Server } else { "user@host" }
-Write-Host "Client commands:"
-Write-Host "  $bindir\dosh.exe $displayServer"
-Write-Host "  $bindir\dosh.exe setup <ssh-alias>"
-Write-Host "  $bindir\dosh.exe update --check"
-Write-Host ""
-Write-Host "Client config:"
-Write-Host "  $configDir\client.toml"
-Write-Host "  $configDir\hosts.toml"
-Write-Host ""
-Write-Host "Open a new terminal for PATH changes to apply."
+Write-Info "Client commands:"
+Write-Info "  $bindir\dosh.exe $displayServer"
+Write-Info "  $bindir\dosh.exe setup <ssh-alias>"
+Write-Info "  $bindir\dosh.exe update --check"
+Write-Info ""
+Write-Info "Client config:"
+Write-Info "  $configDir\client.toml"
+Write-Info "  $configDir\hosts.toml"
+Write-Info ""
+Write-Info "Open a new terminal for PATH changes to apply."

install.sh

@@ -457,7 +457,7 @@ try_install_prebuilt() {
   tmpdir="$(mktemp -d)"
   archive="$tmpdir/$(release_artifact_name)"
   checksum_file="$archive.sha256"
-  [ "$quiet" = "1" ] && echo "Trying Dosh prebuilt $(release_artifact_name)"
+  [ "$quiet" != "1" ] && echo "Trying Dosh prebuilt $(release_artifact_name)"
   need curl
   need tar
   if ! curl -fsL "$download_url" -o "$archive" 2>/dev/null; then
@@ -501,7 +501,7 @@ install_from_source() {
     need git
     mkdir -p "$(dirname "$update_cache")"
     if [ -d "$update_cache/.git" ]; then
-      [ "$quiet" = "1" ] && echo "Updating Dosh source"
+      [ "$quiet" != "1" ] && echo "Updating Dosh source"
       git -C "$update_cache" remote set-url origin "$repo"
       if [ "$quiet" = "1" ]; then
         git -C "$update_cache" fetch -q --depth 1 origin main
@@ -510,7 +510,7 @@ install_from_source() {
       fi
       git -C "$update_cache" checkout -q -B main FETCH_HEAD
     else
-      [ "$quiet" = "1" ] && echo "Downloading Dosh source"
+      [ "$quiet" != "1" ] && echo "Downloading Dosh source"
       rm -rf "$update_cache"
       if [ "$quiet" = "1" ]; then
         git clone -q --depth 1 --branch main "$repo" "$update_cache" >/dev/null
@@ -522,7 +522,7 @@ install_from_source() {
   fi
 
   cd "$src_dir"
-  [ "$quiet" = "1" ] && echo "Building Dosh $role"
+  [ "$quiet" != "1" ] && echo "Building Dosh $role"
   if [ "$role" = "client" ]; then
     if [ "$quiet" = "1" ]; then
       cargo build -q --release --bin dosh-client
@@ -577,7 +577,7 @@ if [ "$use_prebuilt" != "0" ]; then
     if [ "$binary_required" = "1" ]; then
       exit 1
     fi
-    [ "$quiet" = "1" ] && echo "Falling back to source build"
+    [ "$quiet" != "1" ] && echo "Falling back to source build"
     install_from_source
   fi
 else

tests/release_scripts.rs

@@ -6,6 +6,12 @@ fn quiet_update_keeps_prebuilt_enabled_by_default() {
         !install.contains("use_prebuilt=0"),
         "quiet updates must not force source builds"
     );
+    assert!(install.contains("[ \"$quiet\" != \"1\" ] && echo \"Trying Dosh prebuilt"));
+    assert!(install.contains("[ \"$quiet\" != \"1\" ] && echo \"Building Dosh $role\""));
+    assert!(
+        !install.contains("[ \"$quiet\" = \"1\" ] && echo"),
+        "quiet updates must suppress informational installer output"
+    );
 }
 
 #[test]
@@ -159,6 +165,25 @@ fn windows_installer_bootstraps_rust_for_source_fallback_like_unix() {
     assert!(!ps1.contains("Require-Command cargo"));
 }
 
+#[test]
+fn windows_installer_honors_quiet_update_mode() {
+    let ps1 = include_str!("../install.ps1");
+    assert!(ps1.contains("$Quiet = $env:DOSH_UPDATE_QUIET"));
+    assert!(ps1.contains("function Write-Info($Message)"));
+    assert!(ps1.contains("if (-not $Quiet)"));
+    assert!(ps1.contains("Write-Info \"Trying Dosh prebuilt"));
+    assert!(ps1.contains("Write-Info \"Falling back to source build\""));
+    assert!(ps1.contains("Write-Info \"Installed Dosh client to $bindir\""));
+    assert!(
+        !ps1.contains("Write-Host \"Trying Dosh prebuilt"),
+        "Windows quiet update must not print prebuilt progress directly"
+    );
+    assert!(
+        !ps1.contains("Write-Host \"Installed Dosh client"),
+        "Windows quiet update must not print install summary directly"
+    );
+}
+
 #[test]
 fn windows_installer_adds_user_path_idempotently() {
     let ps1 = include_str!("../install.ps1");