[PATCH v2 4/4] tools/ocaml: add .clang-format

[Edwin Török <edvin.torok@xxxxxxxxxx>]

Add a .clang-format configuration that tries to match CODING_STYLE where
possible.

I was not able to express the special casing of braces after 'do'
though, this can only be controlled generally for all control
statements.
It is imperfect, but should be better than the existing bindings, which
do not follow Xen coding style.

Add this to tools/ocaml first because:
* there are relatively few C files here, and it is a good place to start with
* it'd be useful to make these follow Xen's CODING_STYLE
(which they currently do not because they use tabs for example)
* they change relatively infrequently, so shouldn't cause issues with
  backporting security fixes (could either backport the reindentation
  patch too, or use git cherry-pick with `-Xignore-space-change`)

Does not yet reformat any code.

No functional change.

Signed-off-by: Edwin Török <edvin.torok@xxxxxxxxxx>
Acked-by: Christian Lindig <christian.lindig@xxxxxxxxxx>
---
Changes since v1:
* change commit title to reflect this is for OCaml subtree only
* don't mention stdint.h here, that may be fixed in a different way elsewhere
---
 tools/ocaml/.clang-format | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 tools/ocaml/.clang-format

diff --git a/tools/ocaml/.clang-format b/tools/ocaml/.clang-format
new file mode 100644
index 0000000000..7ff88ee043
--- /dev/null
+++ b/tools/ocaml/.clang-format
@@ -0,0 +1,9 @@
+BasedOnStyle: GNU
+IndentWidth: 4
+
+# override GNU to match Xen ../../CODING_STYLE more closely
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+SpacesInConditionalStatement: true
+SpaceBeforeParens: ControlStatements
+BreakBeforeBraces: Allman
-- 
2.34.1