projectUpdater: Fix update when file on source or dest doesn't exist

Fix the update giving error when one file from the source or from the
destination doesn't exist. The output now shows a merge window with the
one that doesn't exist empty, like in a git diff when one of the files
doesn't exist

Signed-off-by: Andre Riesco <[email protected]>

scripts/projectUpdater.ps1

@@ -18,6 +18,7 @@ function _checkArg ($_arg) {
 }
 
 function _checkIfFileContentIsEqual ($_file1, $_file2) {
+
     $file1 = Get-FileHash $_file1
     $file2 = Get-FileHash $_file2
 
@@ -28,16 +29,35 @@ function _checkIfFileContentIsEqual ($_file1, $_file2) {
     }
 }
 
-function _openMergeWindow ($_path1, $_path2) {
+function _openMergeWindow ($_updatedFile, $_currentFile) {
     if ($acceptAll -eq $true) {
-        cp $_path1 $_path2
+        # If the source doesn't exist anymore on the .apollox repo of the
+        # template, remove it from the project being updated
+        if (-not (Test-Path -Path $_updatedFile )) {
+            Remove-Item -Path $_currentFile
+        } else {
+            Copy-Item $_updatedFile $_currentFile
+        }
         return
     }
 
+    # If one of the files doesn't exist create an empty one
+    if (-not (Test-Path -Path $_updatedFile )) {
+        New-Item -Path $_updatedFile -ItemType File
+    } elseif (-not (Test-Path -Path $_currentFile )) {
+        New-Item -Path $_currentFile -ItemType File
+    }
+
     if (
-        -not (_checkIfFileContentIsEqual $_path1 $_path2)
+        -not (_checkIfFileContentIsEqual $_updatedFile $_currentFile)
     ) {
-        code --wait --diff $_path1 $_path2
+        code --wait --diff $_updatedFile $_currentFile
+        # If after the code diff the file is still empty, that means that
+        # this file should not be added to the project, so let's remove this
+        # empty file that we have just created above
+        if ($null -eq (Get-Content $_currentFile)) {
+            Remove-Item -Path $_currentFile
+        }
     }
 }