Format the whole codebase with clang-format

.clang-format

@@ -3,25 +3,38 @@
 # This source code is licensed under Apache 2.0 License,
 # attached with Common Clause Condition 1.0, found in the LICENSES directory.
 #
-# This is the output of clang-format-7.0 --style=google --dump-config,
+# This is the output of clang-format-9.0 --style=google --dump-config,
 # except for changes mentioned below.
 # We have locked the version of clang-format in order to avoid inconsistencies
 # in the format caused by developers using different clang-format versions.
 ---
 Language:        Cpp
 # BasedOnStyle:  Google
+AccessModifierOffset: -1
 AlignAfterOpenBracket: Align
+AlignConsecutiveMacros: false
+AlignConsecutiveAssignments: false
 AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Left
 AlignOperands:   true
 AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: true
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
 AllowShortBlocksOnASingleLine: false
 AllowShortCaseLabelsOnASingleLine: false
-AllowShortIfStatementsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: All
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: WithoutElse
 AllowShortLoopsOnASingleLine: true
 AlwaysBreakAfterDefinitionReturnType: None
 AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
 AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
 BraceWrapping:
+  AfterCaseLabel:  false
   AfterClass:      false
   AfterControlStatement: false
   AfterEnum:       false
@@ -46,6 +59,7 @@ BreakConstructorInitializersBeforeComma: false
 BreakConstructorInitializers: BeforeColon
 BreakAfterJavaFieldAnnotations: false
 BreakStringLiterals: true
+ColumnLimit:     100
 CommentPragmas:  '^ IWYU pragma:'
 CompactNamespaces: false
 ConstructorInitializerAllOnOneLineOrOnePerLine: true
@@ -60,7 +74,7 @@ ForEachMacros:
   - foreach
   - Q_FOREACH
   - BOOST_FOREACH
-IncludeBlocks:   Preserve
+IncludeBlocks:   Regroup
 IncludeCategories:
   - Regex:           '^<ext/.*\.h>'
     Priority:        2
@@ -73,6 +87,7 @@ IncludeCategories:
 IncludeIsMainRegex: '([-_](test|unittest))?$'
 IndentCaseLabels: true
 IndentPPDirectives: None
+IndentWidth:     2
 IndentWrappedFunctionNames: false
 JavaScriptQuotes: Leave
 JavaScriptWrapImports: true
@@ -82,6 +97,7 @@ MacroBlockEnd:   ''
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
 ObjCBinPackProtocolList: Never
+ObjCBlockIndentWidth: 2
 ObjCSpaceAfterProperty: false
 ObjCSpaceBeforeProtocolList: true
 PenaltyBreakAssignment: 2
@@ -125,6 +141,7 @@ ReflowComments:  true
 SortIncludes:    true
 SortUsingDeclarations: true
 SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
 SpaceAfterTemplateKeyword: true
 SpaceBeforeAssignmentOperators: true
 SpaceBeforeCpp11BracedList: false
@@ -133,25 +150,16 @@ SpaceBeforeInheritanceColon: true
 SpaceBeforeParens: ControlStatements
 SpaceBeforeRangeBasedForLoopColon: true
 SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 2
 SpacesInAngles:  false
 SpacesInContainerLiterals: true
 SpacesInCStyleCastParentheses: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
-TabWidth:        4
+Standard:        Auto
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        8
 UseTab:          Never
-
-#Different from google style
-Standard:        Cpp11
-AccessModifierOffset: -4
-AllowAllParametersOfDeclarationOnNextLine: false
-ColumnLimit:     100
-ObjCBlockIndentWidth: 4
-AlignEscapedNewlines: Right
-AlwaysBreakBeforeMultilineStrings: false
-BinPackArguments: false
-BinPackParameters: false
-IndentWidth:     4
-SpacesBeforeTrailingComments: 3
-AllowShortFunctionsOnASingleLine: Empty
 ...

CMakeLists.txt

@@ -53,6 +53,13 @@ add_custom_target(
     WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
 )
 
+
+add_custom_target(
+  clang-format
+  COMMAND "find" "src/" "-type" "f" "\\(" "-iname" "\\*.h" "-o" "-iname" "\\*.cpp" "\\)" "-exec" "clang-format" "-i" "{}" "\\;"
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+  )
+
 if (ENABLE_NATIVE)
     message(STATUS "ENABLE_NATIVE is ${ENABLE_NATIVE}")
     add_compile_options(-fPIC)

src/clients/meta/FileBasedClusterIdMan.cpp

@@ -4,58 +4,56 @@
  * attached with Common Clause Condition 1.0, found in the LICENSES directory.
  */
 
-#include "common/base/Base.h"
 #include "clients/meta/FileBasedClusterIdMan.h"
 
+#include "common/base/Base.h"
 
 namespace nebula {
 namespace meta {
 
 // static
-bool FileBasedClusterIdMan::persistInFile(ClusterID clusterId,
-                                          const std::string& filename) {
-    auto dirname = fs::FileUtils::dirname(filename.c_str());
-    if (!fs::FileUtils::makeDir(dirname)) {
-        LOG(ERROR) << "Failed mkdir " << dirname;
-        return false;
-    }
-    if (fs::FileUtils::remove(filename.c_str())) {
-        LOG(INFO) << "Remove the existed file " << filename;
-    }
-    int fd = ::open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0644);
-    if (fd < 0) {
-        LOG(ERROR) << "Open file error, file " << filename << ", error " << strerror(errno);
-        return false;
-    }
-    int bytes = ::write(fd, reinterpret_cast<const char*>(&clusterId), sizeof(ClusterID));
-    if (bytes != sizeof(clusterId)) {
-        LOG(ERROR) << "Write clusterId failed!";
-        ::close(fd);
-        return false;
-    }
-    LOG(INFO) << "Persiste clusterId " << clusterId << " succeeded!";
+bool FileBasedClusterIdMan::persistInFile(ClusterID clusterId, const std::string& filename) {
+  auto dirname = fs::FileUtils::dirname(filename.c_str());
+  if (!fs::FileUtils::makeDir(dirname)) {
+    LOG(ERROR) << "Failed mkdir " << dirname;
+    return false;
+  }
+  if (fs::FileUtils::remove(filename.c_str())) {
+    LOG(INFO) << "Remove the existed file " << filename;
+  }
+  int fd = ::open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0644);
+  if (fd < 0) {
+    LOG(ERROR) << "Open file error, file " << filename << ", error " << strerror(errno);
+    return false;
+  }
+  int bytes = ::write(fd, reinterpret_cast<const char*>(&clusterId), sizeof(ClusterID));
+  if (bytes != sizeof(clusterId)) {
+    LOG(ERROR) << "Write clusterId failed!";
     ::close(fd);
-    return true;
+    return false;
+  }
+  LOG(INFO) << "Persiste clusterId " << clusterId << " succeeded!";
+  ::close(fd);
+  return true;
 }
 
-
 // static
 ClusterID FileBasedClusterIdMan::getClusterIdFromFile(const std::string& filename) {
-    int fd = ::open(filename.c_str(), O_RDONLY);
-    if (fd < 0) {
-        LOG(WARNING) << "Open file failed, error " << strerror(errno);
-        return 0;
-    }
-    ClusterID clusterId = 0;
-    int len = ::read(fd, reinterpret_cast<char*>(&clusterId), sizeof(ClusterID));
-    if (len != sizeof(ClusterID)) {
-        LOG(ERROR) << "Get clusterId failed!";
-        ::close(fd);
-        return 0;
-    }
-    LOG(INFO) << "Get clusterId: " << clusterId;
+  int fd = ::open(filename.c_str(), O_RDONLY);
+  if (fd < 0) {
+    LOG(WARNING) << "Open file failed, error " << strerror(errno);
+    return 0;
+  }
+  ClusterID clusterId = 0;
+  int len = ::read(fd, reinterpret_cast<char*>(&clusterId), sizeof(ClusterID));
+  if (len != sizeof(ClusterID)) {
+    LOG(ERROR) << "Get clusterId failed!";
     ::close(fd);
-    return clusterId;
+    return 0;
+  }
+  LOG(INFO) << "Get clusterId: " << clusterId;
+  ::close(fd);
+  return clusterId;
 }
 
 }  // namespace meta

src/clients/meta/FileBasedClusterIdMan.h

@@ -11,18 +11,17 @@
 #include "common/fs/FileUtils.h"
 #include "common/meta/ClusterIdManBase.h"
 
-
 namespace nebula {
 namespace meta {
 
 /**
  * This class manages clusterId used for meta server and storage server.
  * */
 class FileBasedClusterIdMan : public ClusterIdManBase {
-public:
-    static bool persistInFile(ClusterID clusterId, const std::string& filename);
+ public:
+  static bool persistInFile(ClusterID clusterId, const std::string& filename);
 
-    static ClusterID getClusterIdFromFile(const std::string& filename);
+  static ClusterID getClusterIdFromFile(const std::string& filename);
 };
 
 }  // namespace meta