Tell text-buffer to ask about destroying buffers for deleted files

src/project.coffee

@@ -360,9 +360,13 @@ class Project extends Model
     else
       @buildBuffer(absoluteFilePath)
 
+  shouldDestroyBufferOnFileDelete: ->
+    atom.config.get('core.closeDeletedFileTabs')
+
   # Still needed when deserializing a tokenized buffer
   buildBufferSync: (absoluteFilePath) ->
     buffer = new TextBuffer({filePath: absoluteFilePath})
+    buffer.setConfigCallbacks(@shouldDestroyBufferOnFileDelete) if buffer.setConfigCallbacks?
     @addBuffer(buffer)
     buffer.loadSync()
     buffer
@@ -375,6 +379,7 @@ class Project extends Model
   # Returns a {Promise} that resolves to the {TextBuffer}.
   buildBuffer: (absoluteFilePath) ->
     buffer = new TextBuffer({filePath: absoluteFilePath})
+    buffer.setConfigCallbacks(@shouldDestroyBufferOnFileDelete) if buffer.setConfigCallbacks?
     @addBuffer(buffer)
     buffer.load()
       .then((buffer) -> buffer)

src/text-editor-element.coffee

@@ -107,8 +107,10 @@ class TextEditorElement extends HTMLElement
     @model ? @buildModel()
 
   buildModel: ->
+    newBuffer = new TextBuffer(@textContent)
+    newBuffer.setConfigCallbacks(-> atom.config.get('core.closeDeletedFileTabs')) if newBuffer.setConfigCallbacks?
     @setModel(@workspace.buildTextEditor(
-      buffer: new TextBuffer(@textContent)
+      buffer: newBuffer
       softWrapped: false
       tabLength: 2
       softTabs: true

src/text-editor.coffee

@@ -160,6 +160,7 @@ class TextEditor extends Model
     @preferredLineLength ?= 80
 
     @buffer ?= new TextBuffer
+    @buffer.setConfigCallbacks(-> atom.config.get('core.closeDeletedFileTabs')) if @buffer.setConfigCallbacks?
     @tokenizedBuffer ?= new TokenizedBuffer({
       grammar, tabLength, @buffer, @largeFileMode, @assert
     })