everything-alpha: check properly for the existence of the Everything service (fix #2216)

In addition to what is described in the linked issue, it also fixes a few other things:

- remove the right service during uninstall by using the service name gotten from PowerShell
- stop only the processes linked to that application

Those fixes are meant to handle a proper cohabitation of different versions of Everything, no matter how many processes or services they each have.

Author: ymeine

bucket/everything-alpha.json

@@ -28,16 +28,46 @@
         "Set-Content \"$dir\\install-context.reg\" $reg_content -Encoding ASCII"
     ],
     "pre_uninstall": [
-        "Stop-Process -Name 'everything' -Force -ErrorAction SilentlyContinue",
-        "if ($(Get-Service -Name Everything -ErrorAction SilentlyContinue).Status -ne 'Stopped') {",
-        "    if (!(is_admin)) { error 'Admin rights are required to stop Everything service'; break }",
-        "    Stop-Service -Name 'Everything' -Force -ErrorAction SilentlyContinue | Out-Null",
+        "$appPathPattern = (Split-Path $dir -Parent).Replace('\\', '\\\\')",
+        "",
+        "$processes = Get-Process -Name 'everything' -ErrorAction SilentlyContinue",
+        "    | Where-Object { $_.Path -match $appPathPattern }",
+        "info \"Found $($processes.Length) Everything process(es) to stop\"",
+        "foreach ($process in $processes) {",
+        "    Stop-Process -Id $process.Id -Force -ErrorAction SilentlyContinue",
         "}",
-        "if ((Get-Service -Name Everything -ErrorAction SilentlyContinue) -and ($cmd -eq 'uninstall')) {",
-        "    if (!(is_admin)) { error 'Admin rights are required to remove Everything service'; break }",
-        "    sc.exe delete 'Everything'",
+        "",
+        "$services = Get-Service -Name Everything* -ErrorAction SilentlyContinue",
+        "    | Where-Object { $_.BinaryPathName -match $appPathPattern }",
+        "",
+        "if ($services.Length -gt 1) {",
+        "    error 'Multiple Everything services found, this is likely a bug with this manifest.'",
+        "    break",
+        "} elseif ($services.Length -eq 0) {",
+        "    info 'No Everything service found, continuing with uninstall.'",
+        "} else {",
+        "    $service = $services[0]",
+        "    $serviceName = $service.Name",
+        "    info \"Found Everything service: $serviceName\"",
+        "",
+        "    if (!(is_admin)) {",
+        "        error 'Administrator rights are required to manage Windows services'",
+        "        break",
+        "    }",
+        "",
+        "    if ($service.Status -ne 'Stopped') {",
+        "        info 'Stopping service'",
+        "        Stop-Service -Name $serviceName -Force | Out-Null",
+        "    }",
+        "",
+        "    if ($cmd -eq 'uninstall') {",
+        "        info 'Removing service'",
+        "        sc.exe delete $serviceName",
+        "    }",
         "}",
+        "",
         "if ($cmd -eq 'uninstall') { reg import \"$dir\\uninstall-context.reg\" }",
+        "",
         "Get-ChildItem \"$dir\\*\" -Include 'Bookmarks*.csv', 'Everything.lng', 'Everything*.db', 'Everything*.ini', 'Filters*.csv', 'Plugins*.ini', 'Run History*.csv', 'Search History*.csv' | Copy-Item -Destination \"$persist_dir\" -ErrorAction SilentlyContinue -Force"
     ],
     "bin": "Everything.exe",