[PATCH v3 1/8] clang-format: indent preprocessor directives after hash

From: Karthik Nayak <karthik.188@gmail.com>
Date: Jul 13, 2024, 13:45 UTC
Message-ID: <20240713134518.773053-2-karthik.188@gmail.com>
In-Reply-To: <20240713134518.773053-1-karthik.188@gmail.com>

We do not have a rule around the indentation of preprocessor directives. This was also discussed on the list [1], noting how there is often inconsistency in the styling. While there was discussion, there was no conclusion around what is the preferred style here. One style being indenting after the hash:

    #if FOO
    #  if BAR
    #    include <foo>
    #  endif
    #endif

The other being before the hash:

    #if FOO
      #if BAR
        #include <foo>
      #endif
    #endif

Let's pick the former and add 'IndentPPDirectives: AfterHash' value to our '.clang-format'. There is no clear reason to pick one over the other, but it would definitely be nicer to be consistent.

[1]: https://lore.kernel.org/r/xmqqwmmm1bw6.fsf@gitster.g

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
---
 .clang-format | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.clang-format b/.clang-format
index 3ed4fac753..5e128519bf 100644
--- a/.clang-format
+++ b/.clang-format
@@ -96,6 +96,12 @@ BreakStringLiterals: false
 # Switch statement body is always indented one level more than case labels.
 IndentCaseLabels: false
 
+# Indents directives before the hash.
+# #if FOO
+# #  include <foo>
+# #endif
+IndentPPDirectives: AfterHash
+
 # Don't indent a function definition or declaration if it is wrapped after the
 # type
 IndentWrappedFunctionNames: false

-- 
2.45.2