Add .dir-locals.el file for Intellij-style indentation

.dir-locals.el

@@ -0,0 +1,65 @@
+((java-mode
+  .
+  ((eval
+    .
+    (progn
+      (defun my/point-in-defun-declaration-p ()
+        (let ((bod (save-excursion (c-beginning-of-defun)
+                                   (point))))
+          (<= bod
+              (point)
+              (save-excursion (goto-char bod)
+                              (re-search-forward "{")
+                              (point)))))
+
+      (defun my/is-string-concatenation-p ()
+        "Returns true if the previous line is a string concatenation"
+        (save-excursion
+          (let ((start (point)))
+            (forward-line -1)
+            (if (re-search-forward " \\\+$" start t) t nil))))
+
+      (defun my/inside-java-lambda-p ()
+        "Returns true if point is the first statement inside of a lambda"
+        (save-excursion
+          (c-beginning-of-statement-1)
+          (let ((start (point)))
+            (forward-line -1)
+            (if (search-forward " -> {" start t) t nil))))
+
+      (defun my/arglist-cont-nonempty-indentation (arg)
+        (if (my/inside-java-lambda-p)
+            '+
+          (if (my/is-string-concatenation-p)
+              16
+            (unless (my/point-in-defun-declaration-p) '++))))
+
+      (defun my/statement-block-intro (arg)
+        (if (and (c-at-statement-start-p) (my/inside-java-lambda-p)) 0 '+))
+
+      (defun my/block-close (arg)
+        (if (my/inside-java-lambda-p) '- 0))
+
+      (c-set-offset 'inline-open           0)
+      (c-set-offset 'topmost-intro-cont    '+)
+      (c-set-offset 'statement-block-intro 'my/statement-block-intro)
+      (c-set-offset 'block-close           'my/block-close)
+      (c-set-offset 'knr-argdecl-intro     '+)
+      (c-set-offset 'substatement-open     '+)
+      (c-set-offset 'substatement-label    '+)
+      (c-set-offset 'case-label            '+)
+      (c-set-offset 'label                 '+)
+      (c-set-offset 'statement-case-open   '+)
+      (c-set-offset 'statement-cont        '++)
+      (c-set-offset 'arglist-intro         0)
+      (c-set-offset 'arglist-cont-nonempty '(my/arglist-cont-nonempty-indentation c-lineup-arglist))
+      (c-set-offset 'arglist-close         '--)
+      (c-set-offset 'inexpr-class          0)
+      (c-set-offset 'access-label          0)
+      (c-set-offset 'inher-intro           '++)
+      (c-set-offset 'inher-cont            '++)
+      (c-set-offset 'brace-list-intro      '+)
+      (c-set-offset 'func-decl-cont        '++)
+      ))
+   (c-basic-offset . 4)
+   (c-comment-only-line-offset . (0 . 0)))))