vscode: Use official startup script for version detection & clean registry on update

Refactored the post_install logic to be deterministic and robust:

1. Source of Truth:
   Instead of guessing/sniffing directory names (which is error-prone), we now parse the `bin/code` shell script.
   This script contains the hardcoded `VERSIONFOLDER` variable, providing the exact path hash used by VS Code itself.

2. Registry Injection:
   Dynamically injects the detected path into .reg templates.

3. Update Cleanup:
   Detects if older versions exist and automatically runs `uninstall-*.reg` to prevent dead context menu links, ensuring a clean slate for the new version.

Author: Timabliss

bucket/vscode.json

@@ -34,10 +34,18 @@
     "post_install": [
         "$dirpath = \"$dir\".Replace('\\', '\\\\')",
         "$exepath = \"$dir\\Code.exe\".Replace('\\', '\\\\')",
+        "$binFile = \"$dir\\bin\\code\"",
+        "$targetDir = $dirpath",
+        "if (Test-Path $binFile) {",
+        "    if ((Get-Content $binFile -Raw) -match 'VERSIONFOLDER=\"([^\"]+)\"') {",
+        "        $targetDir = \"$dir\\$($matches[1])\".Replace('\\', '\\\\')",
+        "    }",
+        "}",
         "'install-associations', 'uninstall-associations', 'install-context', 'uninstall-context', 'install-github-integration', 'uninstall-github-integration' | ForEach-Object {",
         "  if (Test-Path \"$bucketsdir\\extras\\scripts\\vscode\\$_.reg\") {",
         "    $content = Get-Content \"$bucketsdir\\extras\\scripts\\vscode\\$_.reg\"",
-        "    $content = $content.Replace('$codedir', $dirpath)",
+        "        if ($_ -match 'github') {$targetDir = $dirpath,} else {$targetDir = $hashPath}",
+        "    $content = $content.Replace('$codedir', $targetDir)",
         "    $content = $content.Replace('$code', $exepath)",
         "    if ($global) {",
         "      $content = $content.Replace('HKEY_CURRENT_USER', 'HKEY_LOCAL_MACHINE')",
@@ -57,12 +65,23 @@
         "if ((Test-Path \"$extensions_file\")) {",
         "    info 'Adjusting path in extensions file...'",
         "    (Get-Content \"$extensions_file\") -replace '(?<=vscode(/|\\\\\\\\)).*?(?=(/|\\\\\\\\)data(/|\\\\\\\\)extensions)', $version | Set-Content \"$extensions_file\"",
+        "}",
+        "$appRoot = Split-Path $dir -Parent",
+        "$otherVersions = Get-ChildItem $appRoot -Directory | Where-Object { $_.FullName -ne $dir -and $_.Name -ne 'current' }",
+        "if ($otherVersions.Count -gt 0) {",
+        "    'uninstall-associations', 'uninstall-context', 'uninstall-github-integration' | ForEach-Object {",
+        "        $regFile = \"$dir\\$_.reg\"",
+        "        if (Test-Path $regFile) {",
+        "            regedit /s \"$regFile\"",
+        "        }",
+        "    }",
         "}"
     ],
     "uninstaller": {
         "script": [
             "if ($cmd -eq 'uninstall')",
             "{",
+            "   reg import \"$dir\\uninstall-associations.reg\" ",
             "   reg import \"$dir\\uninstall-context.reg\" ",
             "   reg import \"$dir\\uninstall-github-integration.reg\" ",
             "}"