diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..246b99e1e
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+.git*            export-ignore
+*                eol=lf         whitespace=indent-with-non-tab
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..a5a385464
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.sample
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000..d64569567
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 000000000..1b9d3a599
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,8 @@
+Kitware Local Git Hooks
+Copyright 2010-2011 Kitware, Inc.
+
+This product includes software developed at Kitware, Inc.
+(http://www.kitware.com/).
+
+Portions of this software were developed as part of Gerrit Code Review
+(http://code.google.com/p/gerrit/) by The Android Open Source Project.
diff --git a/commit-msg b/commit-msg
new file mode 100755
index 000000000..bd62484cf
--- /dev/null
+++ b/commit-msg
@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+#=============================================================================
+# Copyright 2010-2012 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+. "${BASH_SOURCE%/*}/hooks-config.bash"
+
+# Start with project-specific hook.
+hooks_start commit-msg "$@"
+
+# Prepare a copy of the message:
+#  - strip comment lines
+#  - stop at "diff --git" (git commit -v)
+commit_msg="$GIT_DIR/COMMIT_MSG"
+sed -n -e '/^#/d' -e '/^diff --git/q' -e 'p;d' "$1" > "$commit_msg"
+
+die_advice='
+To continue editing, run the command
+  git commit -e -F '"$commit_msg"'
+(assuming your working directory is at the top).'
+
+die() {
+	echo 'commit-msg hook failure' 1>&2
+	echo '-----------------------' 1>&2
+	echo '' 1>&2
+	echo "$@" 1>&2
+	test -n "$die_advice" && echo "$die_advice" 1>&2
+	exit 1
+}
+
+#-----------------------------------------------------------------------------
+# Check the commit message layout with a simple state machine.
+
+msg_is_merge() {
+	echo "$line" | grep "^Merge " >/dev/null 2>&1
+}
+
+msg_is_revert() {
+	echo "$line" | grep "^Revert " >/dev/null 2>&1
+}
+
+msg_first() {
+	len=$(echo -n "$line" | wc -c)
+	max_len=$(hooks_config --get hooks.commit-msg.maxLength || echo 78) &&
+	if test $len -eq 0; then
+		# not yet first line
+		return
+	elif test $len -lt 8; then
+		die 'The first line must be at least 8 characters:
+--------
+'"$line"'
+--------'
+	elif test $len -gt "$max_len" && ! msg_is_merge && ! msg_is_revert; then
+		die 'The first line may be at most '"$max_len"' characters:
+------------------------------------------------------------------------------
+'"$line"'
+------------------------------------------------------------------------------'
+	elif echo "$line" | grep "^[	 ]\|[	 ]$" >/dev/null 2>&1; then
+		die 'The first line may not have leading or trailing space:
+['"$line"']'
+	else
+		# first line okay
+		state=second
+	fi
+}
+
+msg_second() {
+	if test "x$line" != "x"; then
+		die 'The second line must be empty:
+'"$line"
+	else
+		state=rest
+	fi
+}
+
+msg_rest() {
+	if echo "$line" | grep -q "^Change-Id:"; then
+		die 'Gerrit Change-Id are not allowed in VTK-m.'
+	fi
+}
+
+# Pipe commit message into the state machine.
+state=first
+cat "$commit_msg" |
+while IFS='' read line; do
+	msg_$state || break
+done &&
+rm -f "$commit_msg" || exit 1
+die_advice='' # No more temporary message file.
+
+#-----------------------------------------------------------------------------
+# Chain to project-specific hook.
+hooks_chain commit-msg "$@"
diff --git a/hooks-config.bash b/hooks-config.bash
new file mode 100644
index 000000000..3cb29afdd
--- /dev/null
+++ b/hooks-config.bash
@@ -0,0 +1,66 @@
+#=============================================================================
+# Copyright 2010-2012 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+# Make sure GIT_DIR is set.
+if test -z "$GIT_DIR"; then
+	export GIT_DIR=$(git rev-parse --git-dir)
+fi
+
+# Load hooks configuration from source tree.
+hooks_config=".hooks-config"
+if test -r "$hooks_config"; then
+	hooks_config() {
+		git config -f "$hooks_config" "$@"
+	}
+else
+	hooks_config() {
+		false
+	}
+fi
+config=".hooks-config.bash" && test -r "$config" && . "$config"
+
+# Set up the location for "this" set of hooks.
+HOOKS_DIR="${BASH_SOURCE%/*}"
+
+hooks_chain() {
+	hook="$1" ; shift
+	chain=$(git config --get hooks.chain-$hook) ||
+	chain="$(hooks_config --get hooks.chain.$hook)" ||
+	eval chain="\${hooks_chain_${hook//-/_}}"
+	hooks_child "$chain" "$@" || exit
+}
+
+hooks_start() {
+	hook="$1" ; shift
+	start="$(hooks_config --get hooks.start.$hook)"
+	hooks_child "$start" "$@" || exit
+}
+
+hooks_child() {
+	child="$1" ; shift
+	test -n "$child" || return 0
+	case "$child" in
+	'/'*) prefix="" ;;
+	'[A-Za-z]:/'*) prefix="" ;;
+	'.'*) prefix="" ;;
+	*) prefix="./" ;;
+	esac
+	if test -x "$prefix$child" ; then
+		echo "$stdin" | "$prefix$child" "$@"
+	fi
+}
+
+# vim: set filetype=sh tabstop=8 softtabstop=8 shiftwidth=8 noexpandtab :
diff --git a/post-commit b/post-commit
new file mode 100755
index 000000000..2664cb2f3
--- /dev/null
+++ b/post-commit
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+#=============================================================================
+# Copyright 2010-2015 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+. "${BASH_SOURCE%/*}/hooks-config.bash"
+
+# Chain to project-specific hook.
+hooks_chain post-commit "$@"
diff --git a/pre-commit b/pre-commit
new file mode 100755
index 000000000..c2a7c9909
--- /dev/null
+++ b/pre-commit
@@ -0,0 +1,350 @@
+#!/usr/bin/env bash
+#=============================================================================
+# Copyright 2010-2012 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+. "${BASH_SOURCE%/*}/hooks-config.bash"
+
+# Start with project-specific hook.
+hooks_start pre-commit "$@"
+
+die() {
+	echo 'pre-commit hook failure' 1>&2
+	echo '-----------------------' 1>&2
+	echo '' 1>&2
+	echo "$@" 1>&2
+	exit 1
+}
+
+zero='0000000000000000000000000000000000000000'
+
+#-----------------------------------------------------------------------------
+# Check for committer identity.
+advice='
+Use the commands
+
+	git config --global user.name '\''Your Name'\''
+	git config --global user.email '\''you@yourdomain.com'\''
+
+to introduce yourself to Git before committing.'
+
+# Ensure name and email are available.
+git config --get user.name > /dev/null &&
+git config --get user.email > /dev/null ||
+die 'Identity not configured!' "$advice"
+
+# Validate the name and email.
+git config --get user.name | grep ' ' > /dev/null ||
+die 'Set user.name to your Real Name (with a space), not a userid.' "$advice"
+git config --get user.email | grep '^[^@]*@[^@]*$' > /dev/null ||
+die 'Set user.email to an email address (userid@validdomain.com).' "$advice"
+
+#-----------------------------------------------------------------------------
+# Check content that will be added by this commit.
+
+if git rev-parse --verify -q HEAD > /dev/null; then
+	against=HEAD
+else
+	# Initial commit: diff against an empty tree object
+	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+fi
+
+# Merge ("git commit" after "git merge" with conflicts or --no-commit)
+merge_head=$(git rev-parse -q --verify MERGE_HEAD) || merge_head=''
+
+# Disallow non-ascii file names.  The printable range starts at the
+# space character and ends with tilde.
+if test "$(git diff --cached --name-only --diff-filter=A -z $against |
+	   LC_ALL=C tr -d '[ -~]\0')"; then
+	die 'Non-ascii file names may not be added:
+'"$(git diff --cached --name-only --diff-filter=A $against)"
+fi
+
+#-----------------------------------------------------------------------------
+# Builtin whitespace checks.
+bad=$(git diff-index --check --cached $against --) || die "$bad"
+
+# Approximate whitespace=tab-in-indent check with Git < 1.7.2.
+git --version | grep -q " \(1\.[0-6]\|1\.7\.[01]\)" &&
+approx_tab_in_indent=true || approx_tab_in_indent=false
+check_tab() {
+	lines=$(git diff-index -p --cached $against -- "$1" |
+	        grep '^+	') &&
+	echo "$lines" |
+	while read line; do
+		echo "$1: tab in indent." &&
+		echo "$line"
+	done
+}
+
+# We are going to use server side reformat controls for this
+# # Reject addition of a line without a newline at end-of-file.
+# check_no_lf_at_eof() {
+# 	lines=$(git diff-index -p --cached $against -- "$1" | tail -2)
+# 	if echo "$lines" | head -1 | grep -q '^+' &&
+# 	   echo "$lines" | tail -1 | grep -q '^\\ No newline'; then
+# 		echo "$1: No newline at end of file"
+# 	fi
+# }
+
+# We are going to use server side reformat controls for this
+# # Custom whitespace checks.
+# check_whitespace() {
+# 	ws=$(git check-attr whitespace -- "$file" |
+# 	     sed 's/^[^:]*: whitespace: //')
+# 	if $approx_tab_in_indent; then
+# 		case ",$ws," in
+# 			*,tab-in-indent,*) check_tab "$1" ;;
+# 		esac
+# 	fi
+# 	case ",$ws," in
+# 		*,no-lf-at-eof,*) check_no_lf_at_eof "$1" ;;
+# 	esac
+# }
+# bad=$(git diff-index --name-only --cached $against -- |
+# while read file; do
+# 	check_whitespace "$file"
+# done)
+# test -z "$bad" || die "$bad"
+
+#-----------------------------------------------------------------------------
+# Check file modes and sizes.
+mode_looks_exe() {
+	case "$1" in
+		*.bat) return 0 ;;
+		*.cmd) return 0 ;;
+		*.exe) return 0 ;;
+		*.com) return 0 ;;
+	esac
+	git cat-file blob "$2" | head -1 | grep "^#!/" > /dev/null
+}
+mode_not_exe () {
+	echo "The file '$file' has looks executable but does not have an executable mode.
+On UNIX, run:
+
+  $ chmod u+x '$file' && git add -u '$file'
+
+On Windows, run:
+
+  $ git update-index --chmod=+x '$file'
+"
+}
+mode_bad_exe () {
+	echo "The file '$file' has executable mode but does not look executable.
+On UNIX, run:
+
+  $ chmod u-x '$file' && git add -u '$file'
+
+On Windows, run:
+
+  $ git update-index --chmod=-x '$file'
+"
+}
+mode_non_file () {
+	echo "The path '$file' has a non-file mode."
+}
+check_mode() {
+	case "$dst_mode" in
+		100755) mode_looks_exe "$file" "$dst_obj" || mode_bad_exe ;;
+		100644) mode_looks_exe "$file" "$dst_obj" && mode_not_exe ;;
+		160000) ;;
+		*)	mode_non_file ;;
+	esac
+}
+
+size_max_KiB=$(git config hooks.MaxObjectKiB)
+test -n "$size_max_KiB" || size_max_KiB=1024
+size_too_large_once=""
+size_too_large_once() {
+	test -z "$size_too_large_once" || return ; size_too_large_once=done
+	echo 'At least one file is staged for commit with size larger than its limit.
+We prefer to keep large files out of the main source tree, especially
+binary files that do not compress well.  This hook disallows large files
+by default but can be configured.  A limit for specific files or patterns
+may be set in ".gitattributes" with the "hooks.MaxObjectKiB" attribute.
+For example, the line
+
+  *.c              hooks.MaxObjectKiB=2048
+
+sets a limit of 2048 KiB for C source files.  See "git help attributes"
+for details on the .gitattributes format.  If no attribute has been set
+for a given file then its size is limited by the local default.  Run
+
+  git config hooks.MaxObjectKiB $KiB
+
+to set the local default limit (0 to disable).
+'
+}
+size_too_large() {
+	size_too_large_once
+	echo "The path '$file' has size $file_KiB KiB, greater than allowed $max_KiB KiB."
+}
+size_validate_max_KiB() {
+	test "$max_KiB" -ge "0" 2>/dev/null && return 0
+	echo "The path '$file' has invalid attribute \"hooks-MaxObjectKiB=$max_KiB\"."
+	return 1
+}
+check_size() {
+	test "$dst_obj" != "$zero" || return
+	max_KiB=$(git check-attr hooks.MaxObjectKiB -- "$file" |
+		  sed 's/^[^:]*: hooks.MaxObjectKiB: //')
+	case "$max_KiB" in
+		'unset')       return ;; # No maximum for this object.
+		'set')         max_KiB="$size_max_KiB" ;; # Use local default.
+		'unspecified') max_KiB="$size_max_KiB" ;; # Use local default.
+		*) size_validate_max_KiB || return ;;
+	esac
+	if test "$max_KiB" -gt "0"; then
+		file_KiB=$(expr '(' $(git cat-file -s "$dst_obj") + 1023 ')' / 1024)
+		test "$file_KiB" -le "$max_KiB" || size_too_large
+	fi
+}
+
+short_commit() {
+	git rev-parse --short "$1" 2>/dev/null || echo "$1"
+}
+
+lookup_config_module_update() {
+	update=$(git config "hooks.$1.update")
+
+	# Special-case "true" to accept any update.
+	test "{$update}" = "{true}" && echo '.' && return
+
+	# Format is "aaaaaa..bbbbbb" for update aaaaaa => bbbbbb.
+	# Convert to regex "^aaaaaa[a-z0-9]* bbbbbb[a-z0-9]*$".
+	sha1ex='[a-z0-9][a-z0-9][a-z0-9][a-z0-9][a-z0-9][a-z0-9][a-z0-9]*'
+	regex='^\('"$sha1ex"'\)\.\.\('"$sha1ex"'\)$'
+	echo "$update" |
+	sed -n "/$regex/ {s/$regex/"'^\1[a-z0-9]* \2[a-z0-9]*$/;p;}' |
+	grep '.' # Return false if result is empty.
+}
+
+check_module() {
+	enabled=$(git config --get --bool hooks.submodule) || enabled=true
+	test "$enabled" = "false" && return
+
+	# Allow merged submodule updates.
+	test -n "$merge_head" &&
+	merge_obj=$(git rev-parse -q --verify "$merge_head:$file") &&
+	test "$merge_obj" = "$dst_obj" && return
+
+	# Allow module-only commits without extra work.
+	test -z "$diffs_normal" && return
+
+	# Check if module update is allowed with other changes.
+	allow=$(lookup_config_module_update "$file") || allow='none'
+	if echo "$src_obj $dst_obj" | grep "$allow" > /dev/null; then
+		return
+	fi
+	src_short=$(short_commit "$src_obj")
+	dst_short=$(short_commit "$dst_obj")
+	echo 'A submodule link is staged for commit (among other changes):
+
+  "'"$file"'"  '"$src_short => $dst_short"'
+
+This may occur by accident so we require an extra step to commit.
+If you intend to include this change in your commit, run
+
+  git config "hooks.'"$file"'.update" '"$src_short..$dst_short"'
+
+to explicitly allow the change and try the commit again.  Otherwise run
+
+  git reset HEAD -- "'"$file"'"
+
+to unstage the change.  Furthermore, if you did not intend to modify
+the submodule at all, also run
+
+  git submodule update -- "'"$file"'"
+
+to checkout the current version of the submodule in your work tree.
+Test your changes again to see if they still work with the module.
+Finally, try the commit again.
+'
+	return 1
+}
+
+check_module_rewind() {
+	parent_name="$1"
+	parent_commit="$2"
+	base=$(GIT_DIR="$file/.git" \
+	       git merge-base $src_obj $dst_obj 2>/dev/null) || base=''
+	test "$base" != "$dst_obj" && return
+	parent_short=$(short_commit "$parent_commit")
+	src_short=$(GIT_DIR="$file/.git" short_commit "$src_obj")
+	dst_short=$(GIT_DIR="$file/.git" short_commit "$dst_obj")
+	echo 'This commit would rewind a submodule link:
+
+  "'"$file"'"  '"$src_short => $dst_short"'
+
+from the newer version in '"$parent_name"' ('"$parent_short"').  Run
+
+  git reset '"$parent_name"' -- "'"$file"'"
+  git submodule update -- "'"$file"'"
+
+to checkout the newer version of the submodule in your work tree.
+Then try the commit again.
+'
+	return 1
+}
+
+diffs=$(git diff-index --cached $against -- |
+        sed -n '/^:[^:]/ {s/^://;p;}')
+diffs_normal=$(echo "$diffs" | grep -v '^...... 160000')
+diffs_module=$(echo "$diffs" | grep    '^...... 160000')
+bad=$(
+test -n "$diffs_normal" && echo "$diffs_normal" |
+while read src_mode dst_mode src_obj dst_obj status file; do
+	if test "$src_mode" != "$dst_mode" -a "$dst_mode" != "000000"; then
+		check_mode
+	fi
+	# We don't want to enable the size check currently, need to verify
+	# git-lfs interaction first
+	# if test "$dst_mode" != "160000" -a "$dst_mode" != '000000'; then
+	# 	check_size
+	# fi
+done
+test -n "$diffs_module" && echo "$diffs_module" |
+while read src_mode dst_mode src_obj dst_obj status file; do
+	check_module_rewind HEAD "$against" &&
+	check_module ||
+	break
+done
+)
+test -z "$bad" || die "$bad"
+
+#-----------------------------------------------------------------------------
+# Merge checks.
+if test -n "$merge_head"; then
+	merge_diffs=$(git diff-index --cached $merge_head -- |
+	              sed -n '/^:[^:]/ {s/^://;p;}')
+else
+	merge_diffs=''
+fi
+merge_diffs_normal=$(echo "$merge_diffs" | grep -v '^...... 160000')
+merge_diffs_module=$(echo "$merge_diffs" | grep    '^...... 160000')
+bad=$(
+test -n "$merge_diffs_module" && echo "$merge_diffs_module" |
+while read src_mode dst_mode src_obj dst_obj status file; do
+	check_module_rewind MERGE_HEAD "$merge_head" ||
+	break
+done
+)
+test -z "$bad" || die "$bad"
+
+#-----------------------------------------------------------------------------
+# Chain to project-specific hook.
+hooks_chain pre-commit "$@"
+
+# vim: set filetype=sh tabstop=8 softtabstop=8 shiftwidth=8 noexpandtab :
diff --git a/pre-push b/pre-push
new file mode 100755
index 000000000..4e7c9fd9b
--- /dev/null
+++ b/pre-push
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+#=============================================================================
+# Copyright 2010-2014 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+. "${BASH_SOURCE%/*}/hooks-config.bash"
+
+# Read all input up front so we can use it and hand it to the chained hook.
+stdin="$(cat)" &&
+
+# Chain to project-specific hook.
+hooks_chain pre-push "$@"
diff --git a/prepare-commit-msg b/prepare-commit-msg
new file mode 100755
index 000000000..e2bf4d896
--- /dev/null
+++ b/prepare-commit-msg
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+#=============================================================================
+# Copyright 2010-2012 Kitware, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#=============================================================================
+
+. "${BASH_SOURCE%/*}/hooks-config.bash"
+
+# Start with project-specific hook.
+hooks_start prepare-commit-msg "$@"
+
+#-----------------------------------------------------------------------------
+# Chain to project-specific hook.
+hooks_chain prepare-commit-msg "$@"