Add clang formatting for submodule as well.

Author: lindsayad

.clang-format

@@ -0,0 +1,29 @@
+BasedOnStyle: LLVM
+
+TabWidth: 2
+ColumnLimit: 100
+UseTab: Never
+
+CommentPragmas: '^/'
+ReflowComments: true
+AlignTrailingComments: true
+SpacesBeforeTrailingComments: 1
+
+SpaceBeforeParens: ControlStatements
+SpacesInSquareBrackets: false
+BreakBeforeBraces: Allman
+PointerAlignment: Middle
+
+BinPackParameters: false
+BinPackArguments: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortFunctionsOnASingleLine: true
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+
+SortIncludes: false
+IndentCaseLabels: true
+ConstructorInitializerIndentWidth: 2
+AlwaysBreakAfterDefinitionReturnType: TopLevel
+AlwaysBreakTemplateDeclarations: true

scripts/install-format-hook.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Main repo hook file
+
+REPO_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/../"
+hookfile="$REPO_DIR/.git/hooks/pre-commit"
+
+if [[ -f $hookfile ]]; then
+    echo "'$hookfile' already exists - aborting" 1>&2
+else
+    echo '#!/bin/bash
+    patch=$(git clang-format --diff)
+    if [[ "$patch" =~ "no modified files to format" || "$patch" =~ "clang-format did not modify any files" ]]; then
+       echo "" > /dev/null
+    else
+        echo ""
+	echo "Your code has bad style." >&2
+    	echo "Run 'git clang-format' to resolve the following issues:" >&2
+	echo ""
+    	echo "$patch"
+    	exit 1
+    fi
+    ' > $hookfile
+    chmod a+x $hookfile
+fi
+
+# Squirrel submodule hook file
+
+squirrel_hookfile="$REPO_DIR/.git/modules/squirrel/hooks/pre-commit"
+
+if [[ -f $squirrel_hookfile ]]; then
+    echo "'$squirrel_hookfile' already exists - aborting" 1>&2
+    exit 1
+fi
+
+echo '#!/bin/bash
+patch=$(git clang-format --diff)
+if [[ "$patch" =~ "no modified files to format" || "$patch" =~ "clang-format did not modify any files" ]]; then
+    echo "" > /dev/null
+else
+    echo ""
+    echo "Your code has bad style." >&2
+    echo "Run 'git clang-format' to resolve the following issues:" >&2
+    echo ""
+    echo "$patch"
+    exit 1
+fi
+' > $squirrel_hookfile
+
+chmod a+x $squirrel_hookfile