[PATCH v3 1/1] editorconfig: introduce .editorconfig

[Dzmitry Sankouski]

Current process of sending patches includes running checkpatch.pl
script for each patch, and fixing found style problems.
EditorConfig may help to prevent some style related problems
(like spaces vs tab indentation) on the fly.

Reviewed-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Dzmitry Sankouski <dsankouski at gmail.com>

---

Changes in v3:
- add 'the' article in docs
- fix spacing
- add sign off tag

Changes in v2:
- add section in coding style rst doc
- unify Kconfig with other files

 .editorconfig               | 15 +++++++++++++++
 .gitignore                  |  1 +
 doc/develop/codingstyle.rst |  4 ++++
 3 files changed, 20 insertions(+)
 create mode 100644 .editorconfig

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000000..df69cee160
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,15 @@
+; This file is for unifying the coding style for different editors and IDEs.
+; Plugins are available for notepad++, emacs, vim, gedit,
+; textmate, visual studio, and more.
+;
+; See http://editorconfig.org for details.
+
+# Top-most EditorConfig file.
+root = true
+
+[{**.c, **.h, **Kconfig}]
+indent_style = tab
+indent_size = 8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
diff --git a/.gitignore b/.gitignore
index 3a4d056edf..ed8ca226fe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 #
 .*
 !.checkpatch.conf
+!.editorconfig
 *.a
 *.asn1.[ch]
 *.bin
diff --git a/doc/develop/codingstyle.rst b/doc/develop/codingstyle.rst
index 1d5d0192b3..0bbac75d4e 100644
--- a/doc/develop/codingstyle.rst
+++ b/doc/develop/codingstyle.rst
@@ -27,6 +27,10 @@ The following rules apply:
   more information, read :doc:`checkpatch`. Note that this should be done
   *before* posting on the mailing list!
 
+* Some code style rules may be applied automatically by your editor using
+  the EditorConfig tool. Feel free to setup your editor to work with u-boot's
+  .editorconfig.
+
 * Source files originating from different projects (for example the MTD
   subsystem or the hush shell code from the BusyBox project) may, after
   careful consideration, be exempted from these rules. For such files, the
-- 
2.30.2