add Hab pkg pathing detection to generated script

.gitignore

@@ -11,4 +11,4 @@ tags
 .ruby-version
 .kitchen/
 .kitchen.local.yml
-mixlib-install-*.gem
+*.gem

lib/mixlib/install/generator/bourne/scripts/check_product.sh

@@ -1,6 +1,9 @@
-if test -d "/opt/$project" && test "x$install_strategy" = "xonce"; then
-  echo "$project installation detected"
-  echo "install_strategy set to 'once'"
-  echo "Nothing to install"
-  exit
-fi
+# Check for chef-client command in various locations
+for path in /hab/pkgs/chef/chef-infra-client/*/*/bin/chef-client "/usr/bin/${project}-client" "/opt/$project/bin/${project}-client"; do
+  if test -x "$path" 2>/dev/null && test "x$install_strategy" = "xonce"; then
+    echo "$project installation detected at $path"
+    echo "install_strategy set to 'once'"
+    echo "Nothing to install"
+    exit
+  fi
+done

lib/mixlib/install/generator/powershell/scripts/install_project.ps1.erb

@@ -59,11 +59,19 @@ function Install-Project {
     $install_strategy
   )
 
-  if ((Test-Path "$env:systemdrive\<%= windows_dir %>\$project\embedded") -and ($install_strategy -eq 'once')) {
-    Write-Host "$project installation detected"
-    Write-Host "install_strategy set to 'once'"
-    Write-Host "Nothing to install"
-    exit
+  # Check for chef-client command in various locations
+  $chef_locations = @(
+    "$env:systemdrive\hab\pkgs\chef\chef-infra-client\*\*\bin\chef-client.bat",
+    "$env:systemdrive\<%= windows_dir %>\$project\bin\$project-client.bat"
+  )
+  foreach ($path in $chef_locations) {
+    $resolved = Get-Item $path -ErrorAction SilentlyContinue | Select-Object -First 1
+    if ($resolved -and (Test-Path $resolved.FullName) -and ($install_strategy -eq 'once')) {
+      Write-Host "$project installation detected at $($resolved.FullName)"
+      Write-Host "install_strategy set to 'once'"
+      Write-Host "Nothing to install"
+      exit
+    }
   }
 
   # Set http_proxy as env var
@@ -93,8 +101,8 @@ function Install-Project {
   else {
     $filename = (([System.Uri]$download_url).AbsolutePath -split '/')[-1]
   }
-  Write-Verbose "Download directory: $download_directory"
-  Write-Verbose "Filename: $filename"
+  Write-Host "Download directory: $download_directory"
+  Write-Host "Filename: $filename"
 
   if (-not (test-path $download_directory)) {
     mkdir $download_directory
@@ -104,31 +112,31 @@ function Install-Project {
   $download_destination = join-path $download_directory $filename
 
   if ((test-path $download_destination)) {
-    Write-Verbose "Found existing installer at $download_destination."
+    Write-Host "Found existing installer at $download_destination."
     if (-not [string]::IsNullOrEmpty($sha256)) {
-      Write-Verbose "Checksum specified"
+      Write-Host "Checksum specified"
       $valid_checksum = Test-ProjectPackage -Path $download_destination -Algorithm 'SHA256' -Hash $sha256
       if ($valid_checksum -eq $true) {
-        Write-Verbose "Checksum verified, using existing installer."
+        Write-Host "Checksum verified, using existing installer."
         $cached_installer_available=$true # local file OK
         $verify_checksum = $false # no need to re-verify checksums
       }
       else {
-        Write-Verbose "Checksum mismatch, ignoring existing installer."
+        Write-Host "Checksum mismatch, ignoring existing installer."
         $cached_installer_available=$false # bad local file
         $verify_checksum = $false # re-verify checksums
       }
     }
     else {
-      Write-Verbose "Checksum not specified, existing installer ignored."
+      Write-Host "Checksum not specified, existing installer ignored."
       $cached_installer_available=$false # ignore local file
       $verify_checksum = $false # no checksum to compare
     }
   }
 
   if (-not ($cached_installer_available)) {
     if ($pscmdlet.ShouldProcess("$($download_url)", "Download $project")) {
-      Write-Verbose "Downloading $project from $($download_url) to $download_destination."
+      Write-Host "Downloading $project from $($download_url) to $download_destination."
       Get-WebContent $download_url -filepath $download_destination
     }
   }