fix: Remove multi-line IF blocks with parentheses from batch files

Issue: DOS 6.22 does not support multi-line IF ( ... ) blocks or
ELSE clauses, causing "Bad command or file name" errors in DEPLOY.BAT
Step 5 (Updating AUTOEXEC.BAT).

Root cause: Parentheses for multi-line IF blocks were added in later
DOS versions. DOS 6.22 only supports single-line IF statements.

Changes:
- Converted IF ( ... ) ELSE ( ... ) to GOTO label structure
- Converted IF ( nested commands ) to GOTO label structure
- Updated check-dos-compatibility.ps1 to detect IF ( ... ) syntax
- Created fix-if-blocks.ps1 automated fix script

Example fix:
BEFORE (DOS error):
  IF EXIST file (
      command1
      command2
  ) ELSE (
      command3
  )

AFTER (DOS 6.22 compatible):
  IF NOT EXIST file GOTO ELSE_LABEL
  command1
  command2
  GOTO END_LABEL
  :ELSE_LABEL
  command3
  :END_LABEL

Files modified:
- DEPLOY.BAT: Fixed 2 multi-line IF blocks (lines 164, 244)
- Added labels: NO_AUTOEXEC_BACKUP, AUTOEXEC_BACKUP_DONE, ADD_MACHINE_VAR

DOS 6.22 IF syntax:
- Single-line only: IF condition command
- No parentheses: IF condition ( ... )
- No ELSE clause: ) ELSE (
- Use GOTO for multi-step logic

Deployed to:
- D2TESTNAS: /data/test/DEPLOY.BAT (9,848 bytes)

Testing: Should resolve "Bad command or file name" error at Step 5

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

fix-if-blocks.ps1

@@ -0,0 +1,97 @@
+# Fix multi-line IF blocks with parentheses - not supported in DOS 6.22
+# Convert to single-line IF statements with GOTO labels
+
+$BATFiles = @(
+    "DEPLOY.BAT",
+    "DEPLOY_VERIFY.BAT",
+    "DEPLOY_TEST.BAT",
+    "DEPLOY_FROM_NAS.BAT",
+    "DEPLOY_FROM_AD2.BAT"
+)
+
+Write-Host "[INFO] Fixing multi-line IF blocks (not in DOS 6.22)" -ForegroundColor Cyan
+Write-Host ""
+
+foreach ($File in $BATFiles) {
+    $FilePath = "D:\ClaudeTools\$File"
+
+    if (-not (Test-Path $FilePath)) {
+        Write-Host "[SKIP] $File - not found" -ForegroundColor Yellow
+        continue
+    }
+
+    Write-Host "Processing: $File" -ForegroundColor White
+
+    $Content = Get-Content $FilePath -Raw
+
+    # Fix 1: AUTOEXEC.BAT backup block (lines 164-171)
+    # Convert multi-line IF ( ... ) ELSE ( ... ) to single-line IF with GOTO
+    $OldBlock1 = @'
+REM Backup current AUTOEXEC.BAT
+IF EXIST C:\AUTOEXEC.BAT (
+    ECHO Backing up AUTOEXEC.BAT...
+    COPY C:\AUTOEXEC.BAT C:\AUTOEXEC.SAV >NUL
+    IF ERRORLEVEL 1 GOTO BACKUP_ERROR
+    ECHO [OK] Backup created: C:\AUTOEXEC.SAV
+) ELSE (
+    ECHO [WARNING] No existing AUTOEXEC.BAT found
+)
+ECHO.
+'@
+
+    $NewBlock1 = @'
+REM Backup current AUTOEXEC.BAT
+IF NOT EXIST C:\AUTOEXEC.BAT GOTO NO_AUTOEXEC_BACKUP
+
+ECHO Backing up AUTOEXEC.BAT...
+COPY C:\AUTOEXEC.BAT C:\AUTOEXEC.SAV >NUL
+IF ERRORLEVEL 1 GOTO BACKUP_ERROR
+ECHO [OK] Backup created: C:\AUTOEXEC.SAV
+GOTO AUTOEXEC_BACKUP_DONE
+
+:NO_AUTOEXEC_BACKUP
+ECHO [WARNING] No existing AUTOEXEC.BAT found
+
+:AUTOEXEC_BACKUP_DONE
+ECHO.
+'@
+
+    # Fix 2: MACHINE variable check block (lines 244-247)
+    # Convert multi-line IF ( ... ) to single-line IF with GOTO
+    $OldBlock2 = @'
+REM Check if MACHINE variable already exists in AUTOEXEC.BAT
+IF EXIST C:\AUTOEXEC.BAT (
+    FIND "SET MACHINE=" C:\AUTOEXEC.BAT >NUL
+    IF NOT ERRORLEVEL 1 GOTO MACHINE_EXISTS
+)
+'@
+
+    $NewBlock2 = @'
+REM Check if MACHINE variable already exists in AUTOEXEC.BAT
+IF NOT EXIST C:\AUTOEXEC.BAT GOTO ADD_MACHINE_VAR
+
+FIND "SET MACHINE=" C:\AUTOEXEC.BAT >NUL
+IF NOT ERRORLEVEL 1 GOTO MACHINE_EXISTS
+
+:ADD_MACHINE_VAR
+'@
+
+    $Content = $Content -replace [regex]::Escape($OldBlock1), $NewBlock1
+    $Content = $Content -replace [regex]::Escape($OldBlock2), $NewBlock2
+
+    Set-Content $FilePath $Content -NoNewline
+
+    Write-Host "  [OK] Fixed multi-line IF blocks" -ForegroundColor Green
+}
+
+Write-Host ""
+Write-Host "[SUCCESS] All IF blocks converted to DOS 6.22 syntax" -ForegroundColor Green
+Write-Host ""
+Write-Host "DOS 6.22 IF syntax:" -ForegroundColor Cyan
+Write-Host "  IF condition command        (single line only)" -ForegroundColor White
+Write-Host "  IF condition GOTO label     (for multi-step logic)" -ForegroundColor White
+Write-Host ""
+Write-Host "  NOT SUPPORTED:" -ForegroundColor Red
+Write-Host "    IF condition ( ... )      (parentheses)" -ForegroundColor Red
+Write-Host "    IF condition ... ELSE ... (ELSE clause)" -ForegroundColor Red
+Write-Host ""