Merge branch 'clang-format' into 'staging'

clang-format formatting

See merge request !123

.clang-format

+# Copyright 2019 UChicago Argonne, LLC.
+# (c.f. AUTHORS, LICENSE)
+#
+# This file is part of the AML project.
+# For more info, see https://xgitlab.cels.anl.gov/argo/aml
+#
+# SPDX-License-Identifier: BSD-3-Clause
+---
+Language:        Cpp
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands:   true
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+BinPackArguments: true
+BinPackParameters: false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Linux
+BreakBeforeInheritanceComma: false
+BreakInheritanceList: BeforeColon
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeComma
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: false
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 8
+ContinuationIndentWidth: 8
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: false
+IncludeBlocks:   Regroup
+IncludeCategories:
+  - Regex:           'config\.h'
+    Priority:        1
+  - Regex:           'test.*'
+    Priority:        1
+  - Regex:           'aml\.h'
+    Priority:        3
+  - Regex:           'aml/.*'
+    Priority:        4
+  - Regex:           '^<.*\.h>'
+    Priority:        2
+  - Regex:           '.*'
+    Priority:        5
+IncludeIsMainRegex: 'aml\.h'
+IndentCaseLabels: false
+IndentWidth:     8
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: Inner
+PenaltyBreakAssignment: 10
+PenaltyBreakBeforeFirstCallParameter: 30
+PenaltyBreakComment: 10
+PenaltyBreakFirstLessLess: 0
+PenaltyBreakString: 10
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 100
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+ReflowComments:  true
+SortIncludes:    true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: false
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp03
+TabWidth:        8
+UseTab:          ForIndentation
+...
+

.gitlab-ci.yml

 variables:
   ARGOPKGS : "https://xgitlab.cels.anl.gov/argo/argopkgs/-/archive/master/argopkgs-master.tar.gz"
+  DEFAULT_MERGE_TARGET: "origin/staging"
 
 stages:
   - style
@@ -23,7 +24,7 @@ repoquality:
     paths:
       - .repoquality
 
-checkpatch:
+clang-format:
   stage: style
   except:
     - /^wip.*/
@@ -32,9 +33,16 @@ checkpatch:
     - nix
     - kvm
   script:
-    - nix run -f "$ARGOPKGS" checkpatch --command checkpatch.pl --ignore TRAILING_SEMICOLON --ignore MULTISTATEMENT_MACRO_USE_DO_WHILE include/aml/utils/inner-malloc.h
-    - git ls-files '*.c' '*.h' | grep -vE "benchmarks|inner-malloc" >> .checkpatch.conf
-    - nix run -f "$ARGOPKGS" checkpatch --command checkpatch.pl
+    - rm -f clang-format-diff
+    - target=$(git rev-parse $DEFAULT_MERGE_TARGET)
+    - nix-shell "$ARGOPKGS" -A ci.aml-format --run "git-clang-format --diff $target > clang-format-diff"
+    - lint=$(grep -v --color=never "did not modify any files" || true)
+    - if [ ! -z "$lint" ]; then exit 1; else exit 0; fi
+  artifacts:
+    when: on_failure
+    paths:
+      - ./clang-format-diff
+    expire_in: 1 week
 
 style:docs:
   stage: style