From 61eddca39dca58777f941a4c401904f98c7f6070 Mon Sep 17 00:00:00 2001
From: Gregory Hainaut <gregory.hainaut@gmail.com>
Date: Fri, 12 Aug 2016 20:20:03 +0200
Subject: [PATCH] clang format: preliminary support

Add a .clang-format example file. Might need minor tuning. If people doesn't like the syntax

Add a basic script to validate current change is compliant with clang-format
* on master it will test last 20 commits
* on branch it will test all commits of the branch

Idea is to plug it into travis (might require clang 3.8). Everything is blacklisted. Use "ALL" parameters
to test all standard directories.
---
 .clang-format                 | 77 +++++++++++++++++++++++++++++++++++
 linux_various/check_format.sh | 66 ++++++++++++++++++++++++++++++
 2 files changed, 143 insertions(+)
 create mode 100644 .clang-format
 create mode 100755 linux_various/check_format.sh

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000000..ca1fc84be3
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,77 @@
+---
+Language:        Cpp
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: true
+AlignConsecutiveDeclarations: true
+AlignEscapedNewlinesLeft: false
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: true
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: true
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: true
+BinPackParameters: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Linux
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializersBeforeComma: true
+ColumnLimit:     0
+CommentPragmas:  '^ (IWYU pragma:|NOLINT)'
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ForEachMacros:   []
+IncludeCategories:
+  - Regex:           '^"(stdafx|PrecompiledHeader)'
+    Priority:        -2
+  - Regex:           '^".*Common'
+    Priority:        -1
+  - Regex:           '^<'
+    Priority:        1
+  - Regex:           '^"'
+    Priority:        2
+IndentCaseLabels: true
+IndentWidth:     4
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 3
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Left
+ReflowComments:  true
+SortIncludes:    false
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 2
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        4
+UseTab:          Never
+...
diff --git a/linux_various/check_format.sh b/linux_various/check_format.sh
new file mode 100755
index 0000000000..4ba79deb68
--- /dev/null
+++ b/linux_various/check_format.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+
+ret=0
+
+branch=`git rev-parse --abbrev-ref HEAD`
+if [ x$branch = "xmaster" ]
+then
+    # check the last 20 commits. It ought to be enough even for big push
+    diff_range=HEAD~20
+else
+    # check filed updated in the branch
+    diff_range="master...HEAD"
+fi
+
+# get updates and blacklist directories that don't use yet the clang-format syntax
+files=`git diff $diff_range --name-only --diff-filter=ACMRT | \
+    grep "\.\(c\|h\|inl\|cpp\|hpp\)$" | \
+    grep -v "${1}common/" | \
+    grep -v "${1}pcsx2/" | \
+    grep -v "${1}plugins/cdvdGigaherz/" | \
+    grep -v "${1}plugins/CDVDiso/" | \
+    grep -v "${1}plugins/CDVDisoEFP/" | \
+    grep -v "${1}plugins/CDVDlinuz/" | \
+    grep -v "${1}plugins/CDVDnull/" | \
+    grep -v "${1}plugins/CDVDolio/" | \
+    grep -v "${1}plugins/CDVDpeops/" | \
+    grep -v "${1}plugins/dev9ghzdrk/" | \
+    grep -v "${1}plugins/dev9null/" | \
+    grep -v "${1}plugins/FWnull/" | \
+    grep -v "${1}plugins/GSdx/" | \
+    grep -v "${1}plugins/GSdx_legacy/" | \
+    grep -v "${1}plugins/GSnull/" | \
+    grep -v "${1}plugins/LilyPad/" | \
+    grep -v "${1}plugins/onepad/" | \
+    grep -v "${1}plugins/PadNull/" | \
+    grep -v "${1}plugins/PeopsSPU2/" | \
+    grep -v "${1}plugins/SPU2null/" | \
+    grep -v "${1}plugins/spu2-x/" | \
+    grep -v "${1}plugins/SSSPSXPAD/" | \
+    grep -v "${1}plugins/USBnull/" | \
+    grep -v "${1}plugins/USBqemu/" | \
+    grep -v "${1}plugins/xpad/" | \
+    grep -v "${1}plugins/zerogs/" | \
+    grep -v "${1}plugins/zerospu2/" | \
+    grep -v "${1}plugins/zzogl-pg/" | \
+    \
+    grep -v "3rdpary/" | \
+    grep -v "bin/" | \
+    grep -v "cmake/" | \
+    grep -v "tools/" | \
+    grep -v "tests/" | \
+    grep -v "unfree/"
+`
+
+# Check remaining files are clang-format compliant
+for f in $files
+do
+    clang-format -style=file -output-replacements-xml $f | grep "<replacement " >/dev/null
+    if [ $? -ne 1 ]
+    then
+        echo "file $f did not match clang-format"
+        ret=1;
+    fi
+done
+
+exit $ret;