Add developer utilities.

Add LICENSE and NOTICE

Add 'tips' script to suggest local configuration

Add 'setup-user' script to configure authorship information

Prompt the user to configure user.name and user.email interactively.

Add 'setup-hooks' script to install local hooks

Fetch the hooks right out of the local clone if possible.  Otherwise
fall back to a project-configured remote repository.

Add 'setup-gerrit' script to configure Gerrit access

Interactively prompt the user with Gerrit setup instructions.

Add 'setup-stage' script to configure topic stage remote

Add 'setup-ssh' script to configure ssh push access

Interactively prompt the user for ~/.ssh/config setup.

Add README instructions and sample configuration

Exclude from source archives files specific to Git work tree

Add the "export-ignore" attribute to all such files.  Remove the
suggestion from the README since this should not be a responsibility
of the including project.

setup-stage: Optionally reconfigure topic stage

When the topic stage has already been configured present the current
configuration and prompt for optional reconfiguration.  While at it,
make the topic stage remote name configurable by the project.

setup-gerrit: Allow ssh-only repo URLs

Honor the $username placeholder in the 'gerrit.url' configuration value.
Configure a separate pushurl only if it is different from the main url.

setup-stage: Allow 'url' without 'pushurl'

Configure a separate pushurl only if it is different from the main url.

Tell Git how to check GitSetup config files

Add a .gitattributes line to match both "config.sample" and any config
file added by the containing project.

Add 'git-gerrit-push' script

Add a script implementing our standard "git gerrit-push" alias.  When
invoked, first check that the current branch is a named topic.  Then
fetch 'master' from the 'gerrit' remote repository so the local
repository can compute a minimal pack to push.  Finally, push the topic
to the 'gerrit' remote as "refs/for/master/$topic".

setup-hooks: Create .git hooks directory if necessary

If for some reason the .git/hooks directory is removed or never created,
be sure to create the directory before trying to enter it.

Suggested-by: Michka Popoff <michkapopoff@gmail.com>

git-gerrit-push: Refine topic name validation

Use bash features instead of 'sed'.

git-gerrit-push: Append topic to refspecs instead of overwriting

Other logic may later be added to add more refspecs.

git-gerrit-push: Avoid bash history expansion

Protect '!' characters in single quotes.

git-gerrit-push: Fetch 'master' before checking refspecs

Fetch 'master' before deciding if there are no refspecs because later
changes may use 'master' to compute more refspecs.

Add 'setup-upstream' script to help users configure preferred upstream

Interactively prompt the user based on their current configuration
to ask about using the preferred upstream configuration.

Add 'setup-gitlab' script to configure GitLab access

Interactively prompt the user with GitLab setup instructions.
Base the script on 'setup-gerrit'.

Add 'git-gitlab-push' script to help users push to their GitLab fork

Copy the 'git-gerrit-push' script and change the default remote name.
Also change the topic push refspec to force-push a real branch instead
of the Gerrit "for/" namespace.

git-gitlab-push: Print follow-up instructions and links for user

If the user pushes to the expected GitLab repository, extract their
username and use it to print URLs useful for them to follow up in
GitLab.

git-gitlab-push: Keep user fork 'master' up to date if possible

git-gitlab-push: Document options on multiple lines in usage

This will allow a longer total set of options without long lines.

git-gitlab-push: Require a '--force' option to force-push the topic

Do not allow users to risk losing work by default.  Our workflow does
not involve pulling first to avoid a non-fast-forward, so hide any such
advice that Git may generate.  Instead add our own advice.

setup-upstream: Tolerate lack of existing upstream pushurl

The 'git config --unset' command returns non-zero if the value is not
present.  This causes the script to exit with a silent error.  Check for
a value before trying to unset it, and then warn if unsetting fails, but
never consider the case an error.

git-gitlab-push: add source_branch to the "create an MR" url

.gitattributes

+.git*            export-ignore
+
+# Exclude from source archives files specific to Git work tree.
+*                export-ignore
+
+config*          eol=lf         whitespace=indent-with-non-tab
+git-*            eol=lf         whitespace=indent-with-non-tab
+tips             eol=lf         whitespace=indent-with-non-tab
+setup-*          eol=lf         whitespace=indent-with-non-tab

LICENSE

+
+                                 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
+      identification within third-party archives.
+
+   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.

NOTICE

+Kitware Local Git Setup Scripts
+Copyright 2010-2012 Kitware, Inc.
+
+This product includes software developed at Kitware, Inc.
+(http://www.kitware.com/).

README

+Kitware Local Git Setup Scripts
+
+
+Introduction
+------------
+
+This is a collection of local Git development setup scripts meant for
+inclusion in project source trees to aid their development workflow.
+Project-specific information needed by the scripts may be configured
+in a "config" file added next to them in the project.
+
+
+Import
+------
+
+A project may import these scripts into their source tree by
+initializing a subtree merge.  Bring up a Git prompt and set the
+current working directory inside a clone of the target project.
+Fetch the "setup" branch from the GitSetup repository:
+
+ $ git fetch ../GitSetup setup:setup
+
+Prepare to merge the branch but place the content in a subdirectory.
+Any prefix (with trailing '/') may be chosen so long as it is used
+consistently within a project through the rest of these instructions:
+
+ $ git merge -s ours --no-commit setup
+ $ git read-tree -u --prefix=Utilities/GitSetup/ setup
+
+Commit the merge with an informative message:
+
+ $ git commit
+ ------------------------------------------------------------------------
+ Merge branch 'setup'
+
+ Add Utilities/GitSetup/ directory using subtree merge from
+ the general GitSetup repository "setup" branch.
+ ------------------------------------------------------------------------
+
+
+Configuration
+-------------
+
+Read the "Project configuration instructions" comment in each script.
+Add a "config" file next to the scripts with desired configuration
+(optionally copy and modify "config.sample").  For example, to
+configure the "setup-hooks" script:
+
+ $ git config -f Utilities/GitSetup/config hooks.url "$url"
+
+where "$url" is the project repository publishing the "hooks" branch.
+When finished, add and commit the configuration file:
+
+ $ git add Utilities/GitSetup/config
+ $ git commit
+
+
+Update
+------
+
+A project may update these scripts from the GitSetup repository.
+Bring up a Git prompt and set the current working directory inside a
+clone of the target project.  Fetch the "setup" branch from the
+GitSetup repository:
+
+ $ git fetch ../GitSetup setup:setup
+
+Merge the "setup" branch into the subtree:
+
+ $ git merge -X subtree=Utilities/GitSetup setup
+
+where "Utilities/GitSetup" is the same prefix used during the import
+setup, but without a trailing '/'.
+
+
+License
+-------
+
+Distributed under the Apache License 2.0.
+See LICENSE and NOTICE for details.

config.sample

+# Kitware Local Git Setup Scripts - Sample Project Configuration
+#
+# Copy to "config" and edit as necessary.
+
+[hooks]
+	url = http://public.kitware.com/GitSetup.git
+	#branch = hooks
+
+[ssh]
+	host = public.kitware.com
+	key = id_git_public
+	request-url = https://www.kitware.com/Admin/SendPassword.cgi
+
+[stage]
+	#url = git://public.kitware.com/stage/Project.git
+	#pushurl = git@public.kitware.com:stage/Project.git
+
+[gerrit]
+	#project = Project
+	site = http://review.source.kitware.com
+	# pushurl placeholder "$username" is literal
+	pushurl = $username@review.source.kitware.com:Project
+
+[upstream]
+	url = git://public.kitware.com/Project.git
+
+[gitlab]
+	host = gitlab.kitware.com
+	group-path = group
+	group-name = Group
+	project-path = project
+	project-name = Project

git-gerrit-push

+#!/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.
+#=============================================================================
+
+USAGE="[<remote>] [--no-topic] [--dry-run] [--]"
+OPTIONS_SPEC=
+SUBDIRECTORY_OK=Yes
+. "$(git --exec-path)/git-sh-setup"
+
+#-----------------------------------------------------------------------------
+
+remote=''
+refspecs=''
+no_topic=''
+dry_run=''
+
+# Parse the command line options.
+while test $# != 0; do
+	case "$1" in
+		--no-topic) no_topic=1 ;;
+		--dry-run)  dry_run=--dry-run ;;
+		--) shift; break ;;
+		-*) usage ;;
+		*) test -z "$remote" || usage ; remote="$1" ;;
+	esac
+	shift
+done
+test $# = 0 || usage
+
+# Default remote.
+test -n "$remote" || remote="gerrit"
+
+if test -z "$no_topic"; then
+	# Identify and validate the topic branch name.
+	head="$(git symbolic-ref HEAD)" && topic="${head#refs/heads/}" || topic=''
+	if test -z "$topic" -o "$topic" = "master"; then
+		die 'Please name your topic:
+		git checkout -b descriptive-name'
+	fi
+	# The topic branch will be pushed by name.
+	refspecs="HEAD:refs/for/master/$topic $refspecs"
+fi
+
+# Fetch the current upstream master branch head.
+# This helps computation of a minimal pack to push.
+echo "Fetching $remote master"
+fetch_out=$(git fetch "$remote" master 2>&1) || die "$fetch_out"
+
+# Exit early if we have nothing to push.
+if test -z "$refspecs"; then
+	echo 'Nothing to push!'
+	exit 0
+fi
+
+# Push.  Save output and exit code.
+echo "Pushing to $remote"
+push_stdout=$(git push --porcelain $dry_run "$remote" $refspecs); push_exit=$?
+echo "$push_stdout"
+
+# Reproduce the push exit code.
+exit $push_exit

git-gitlab-push

+#!/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.
+#=============================================================================
+
+USAGE='[<remote>] [<options>...] [--]
+
+OPTIONS
+
+--dry-run
+    Show what would be pushed without actually updating the destination
+
+-f,--force
+    Force-push the topic HEAD to rewrite the destination branch
+
+--no-default
+    Do not push the default branch (e.g. master)
+
+--no-topic
+    Do not push the topic HEAD.
+'
+OPTIONS_SPEC=
+SUBDIRECTORY_OK=Yes
+. "$(git --exec-path)/git-sh-setup"
+
+egrep-q() {
+	egrep "$@" >/dev/null 2>/dev/null
+}
+
+# Load the project configuration.
+gitlab_upstream='' &&
+gitlab_configured='' &&
+config="${BASH_SOURCE%/*}/config" &&
+protocol=$(git config -f "$config" --get gitlab.protocol ||
+	   echo "https") &&
+host=$(git config -f "$config" --get gitlab.host) &&
+site=$(git config -f "$config" --get gitlab.site ||
+       echo "$protocol://$host") &&
+group_path=$(git config -f "$config" --get gitlab.group-path) &&
+project_path=$(git config -f "$config" --get gitlab.project-path) &&
+gitlab_upstream="$site/$group_path/$project_path.git" &&
+gitlab_pushurl=$(git config --get remote.gitlab.pushurl ||
+		 git config --get remote.gitlab.url) &&
+gitlab_configured=1
+
+#-----------------------------------------------------------------------------
+
+remote=''
+refspecs=''
+force=''
+no_topic=''
+no_default=''
+dry_run=''
+
+# Parse the command line options.
+while test $# != 0; do
+	case "$1" in
+		-f|--force)   force='+' ;;
+		--no-topic)   no_topic=1 ;;
+		--dry-run)    dry_run=--dry-run ;;
+		--no-default) no_default=1 ;;
+		--) shift; break ;;
+		-*) usage ;;
+		*) test -z "$remote" || usage ; remote="$1" ;;
+	esac
+	shift
+done
+test $# = 0 || usage
+
+# Default remote.
+test -n "$remote" || remote="gitlab"
+
+if test -z "$no_topic"; then
+	# Identify and validate the topic branch name.
+	head="$(git symbolic-ref HEAD)" && topic="${head#refs/heads/}" || topic=''
+	if test -z "$topic" -o "$topic" = "master"; then
+		die 'Please name your topic:
+		git checkout -b descriptive-name'
+	fi
+	# The topic branch will be pushed by name.
+	refspecs="${force}HEAD:refs/heads/$topic $refspecs"
+fi
+
+# Fetch the current remote master branch head.
+# This helps computation of a minimal pack to push.
+echo "Fetching $remote master"
+fetch_out=$(git fetch "$remote" master 2>&1) || die "$fetch_out"
+gitlab_head=$(git rev-parse FETCH_HEAD) || exit
+
+# Fetch the current upstream master branch head.
+if origin_fetchurl=$(git config --get remote.origin.url) &&
+   test "$origin_fetchurl" = "$gitlab_upstream"; then
+	upstream_remote='origin'
+else
+	upstream_remote="$gitlab_upstream"
+fi
+echo "Fetching $upstream_remote master"
+fetch_out=$(git fetch "$upstream_remote" master 2>&1) || die "$fetch_out"
+upstream_head=$(git rev-parse FETCH_HEAD) || exit
+
+# Add a refspec to keep the remote master up to date if possible.
+if test -z "$no_default" &&
+   base=$(git merge-base "$gitlab_head" "$upstream_head") &&
+   test "$base" = "$gitlab_head"; then
+	refspecs="$upstream_head:refs/heads/master $refspecs"
+fi
+
+# Exit early if we have nothing to push.
+if test -z "$refspecs"; then
+	echo 'Nothing to push!'
+	exit 0
+fi
+
+# Push.  Save output and exit code.
+echo "Pushing to $remote"
+push_config='-c advice.pushUpdateRejected=false'
+push_stdout=$(git $push_config push --porcelain $dry_run "$remote" $refspecs); push_exit=$?
+echo "$push_stdout"
+
+# Advise the user to force-push if needed.
+if test "$push_exit" -ne 0 && test -z "$force" &&
+   echo "$push_stdout" | egrep-q 'non-fast-forward'; then
+	echo '
+Add "-f" or "--force" to push a rewritten topic.'
+fi
+
+# Tell the user what to do next with the topic in GitLab.
+if test -z "$no_topic" &&
+   test "$push_exit" -eq 0 &&
+   test "$remote" = "gitlab" &&
+   test -n "$gitlab_configured" &&
+   echo "$gitlab_pushurl" | egrep-q "$host[^/:]*[/:][^/]*/$project_path\\.git$"; then
+	userpath="${gitlab_pushurl%/*.git}" &&
+	username="${userpath##*[/:]}" &&
+	echo '
+The topic has been pushed to your fork in GitLab.  Visit
+
+  '"$site/$username/$project_path/tree/$topic"'
+
+to see the files.  Visit
+
+  '"$site/$username/$project_path/merge_requests/new?merge_request[source_branch]=$topic"'
+
+to create a Merge Request if there is not one already.'
+fi
+
+# Reproduce the push exit code.
+exit $push_exit

setup-gerrit

+#!/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.
+#=============================================================================
+
+# Run this script to set up the local Git repository to push to
+# a Gerrit Code Review instance for this project.
+
+# Project configuration instructions:
+#
+# - Run a Gerrit Code Review server
+#
+# - Populate adjacent "config" file with:
+#    gerrit.site = Top Gerrit URL (not project-specific)
+#    gerrit.project = Name of project in Gerrit
+#    gerrit.pushurl = Review site push URL with "$username" placeholder
+#    gerrit.remote = Gerrit remote name, if not "gerrit"
+#    gerrit.url = Gerrit project URL, if not "$site/p/$project"
+#                 optionally with "$username" placeholder
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Load the project configuration.
+site=$(git config -f config --get gerrit.site) &&
+project=$(git config -f config --get gerrit.project) &&
+remote=$(git config -f config --get gerrit.remote ||
+	 echo "gerrit") &&
+fetchurl_=$(git config -f config --get gerrit.url ||
+	    echo "$site/p/$project") &&
+pushurl_=$(git config -f config --get gerrit.pushurl ||
+	   git config -f config --get gerrit.url) ||
+die 'This project is not configured to use Gerrit.'
+
+# Get current gerrit push URL.
+pushurl=$(git config --get remote."$remote".pushurl ||
+	  git config --get remote."$remote".url || echo '') &&
+
+# Tell user about current configuration.
+if test -n "$pushurl"; then
+	echo 'Remote "'"$remote"'" is currently configured to push to
+
+  '"$pushurl"'
+' &&
+	read -ep 'Reconfigure Gerrit? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		setup=1
+	else
+		setup=''
+	fi
+else
+	echo 'Remote "'"$remote"'" is not yet configured.
+
+'"$project"' changes must be pushed to our Gerrit Code Review site:
+
+  '"$site/p/$project"'
+
+Register a Gerrit account and select a username (used below).
+You will need an OpenID:
+
+  http://openid.net/get-an-openid/
+' &&
+	read -ep 'Configure Gerrit? [Y/n]: ' ans &&
+	if [ "$ans" == "n" ] || [ "$ans" == "N" ]; then
+		exit 0
+	else
+		setup=1
+	fi
+fi &&
+
+# Perform setup if necessary.
+if test -n "$setup"; then
+	echo 'Sign-in to Gerrit to get/set your username at
+
+  '"$site"'/#/settings
+
+Add your SSH public keys at
+
+  '"$site"'/#/settings/ssh-keys
+' &&
+	read -ep "Gerrit username? [$USER]: " gu &&
+	if test -z "$gu"; then
+		gu="$USER"
+	fi &&
+	fetchurl="${fetchurl_/\$username/$gu}" &&
+	if test -z "$pushurl"; then
+		git remote add "$remote" "$fetchurl"
+	else
+		git config remote."$remote".url "$fetchurl"
+	fi &&
+	pushurl="${pushurl_/\$username/$gu}" &&
+	if test "$pushurl" != "$fetchurl"; then
+		git config remote."$remote".pushurl "$pushurl"
+	fi &&
+	echo 'Remote "'"$remote"'" is now configured to push to
+
+  '"$pushurl"'
+'
+fi &&
+
+# Optionally test Gerrit access.
+if test -n "$pushurl"; then
+	read -ep 'Test access to Gerrit (SSH)? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		echo -n 'Testing Gerrit access by SSH...'
+		if git ls-remote --heads "$pushurl" >/dev/null; then
+			echo 'passed.'
+		else
+			echo 'failed.' &&
+			die 'Could not access Gerrit.  Add your SSH public keys at
+
+  '"$site"'/#/settings/ssh-keys
+'
+		fi
+	fi
+fi &&
+
+# Set up GerritId hook.
+hook=$(git config --get hooks.GerritId || echo '') &&
+if test -z "$hook"; then
+	echo '
+Enabling GerritId hook to add a "Change-Id" footer to commit
+messages for interaction with Gerrit.  Run
+
+  git config hooks.GerritId false
+
+to disable this feature (but you will be on your own).' &&
+	git config hooks.GerritId true
+else
+	echo 'GerritId hook already configured to "'"$hook"'".'
+fi

setup-gitlab

+#!/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.
+#=============================================================================
+
+# Run this script to set up the local Git repository to push to
+# a personal fork for this project in GitLab.
+
+# Project configuration instructions:
+#
+# - Run a GitLab server
+#
+# - Populate adjacent "config" file with:
+#    gitlab.protocol = Top GitLab protocol, if not 'https'
+#    gitlab.host = Top GitLab fully qualified host name
+#    gitlab.site = Top GitLab URL, if not "<protocol>://<host>"
+#    gitlab.group-name = Name of group containing project in GitLab
+#    gitlab.group-path = Path of group containing project in GitLab
+#    gitlab.project-name = Name of project within GitLab group
+#    gitlab.project-path = Path of project within GitLab group
+#    gitlab.url = GitLab push URL with "$username" placeholder,
+#                 if not "<site>/$username/<project-path>.git"
+#    gitlab.pushurl = GitLab push URL with "$username" placeholder,
+#                     if not "git@<host>:$username/<project-path>.git"
+#    gitlab.remote = GitLab remote name, if not "gitlab"
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Load the project configuration.
+protocol=$(git config -f config --get gitlab.protocol ||
+	   echo "https") &&
+host=$(git config -f config --get gitlab.host) &&
+site=$(git config -f config --get gitlab.site ||
+       echo "$protocol://$host") &&
+group_path=$(git config -f config --get gitlab.group-path) &&
+group_name=$(git config -f config --get gitlab.group-name) &&
+project_name=$(git config -f config --get gitlab.project-name) &&
+project_path=$(git config -f config --get gitlab.project-path) &&
+pushurl_=$(git config -f config --get gitlab.pushurl ||
+	   echo "git@$host:\$username/$project_path.git") &&
+remote=$(git config -f config --get gitlab.remote ||
+	 echo "gitlab") &&
+fetchurl_=$(git config -f config --get gitlab.url ||
+	    echo "$site/\$username/$project_path.git") ||
+die 'This project is not configured to use GitLab.'
+
+# Get current gitlab push URL.
+pushurl=$(git config --get remote."$remote".pushurl ||
+	  git config --get remote."$remote".url || echo '') &&
+
+# Tell user about current configuration.
+if test -n "$pushurl"; then
+	echo 'Remote "'"$remote"'" is currently configured to push to
+
+  '"$pushurl"'
+' &&
+	read -ep 'Reconfigure GitLab? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		setup=1
+	else
+		setup=''
+	fi
+else
+	echo 'Remote "'"$remote"'" is not yet configured.
+' &&
+	read -ep 'Configure GitLab to contribute to '"$project_name"'? [Y/n]: ' ans &&
+	if [ "$ans" == "n" ] || [ "$ans" == "N" ]; then
+		exit 0
+	else
+		setup=1
+	fi
+fi &&
+
+setup_instructions='Add your SSH public keys at
+
+  '"$site"'/profile/keys
+
+Then visit the main repository at:
+
+  '"$site/$group_path/$project_path"'
+
+and use the Fork button in the upper right.
+'
+
+# Perform setup if necessary.
+if test -n "$setup"; then
+	echo 'Sign-in to GitLab to get/set your username at
+
+  '"$site/profile/account"'
+
+'"$setup_instructions" &&
+	read -ep "GitLab username? [$USER]: " gu &&
+	if test -z "$gu"; then
+		gu="$USER"
+	fi &&
+	fetchurl="${fetchurl_/\$username/$gu}" &&
+	if test -z "$pushurl"; then
+		git remote add "$remote" "$fetchurl"
+	else
+		git config remote."$remote".url "$fetchurl"
+	fi &&
+	pushurl="${pushurl_/\$username/$gu}" &&
+	git config remote."$remote".pushurl "$pushurl" &&
+	echo 'Remote "'"$remote"'" is now configured to push to
+
+  '"$pushurl"'
+'
+fi &&
+
+# Optionally test GitLab access.
+if test -n "$pushurl"; then
+	read -ep 'Test access to GitLab (SSH)? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		echo -n 'Testing GitLab access by SSH...'
+		if git ls-remote --heads "$pushurl" >/dev/null; then
+			echo 'passed.'
+		else
+			echo 'failed.' &&
+			die 'Could not access your GitLab fork of this project.
+'"$setup_instructions"
+		fi
+	fi
+fi

setup-hooks

+#!/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.
+#=============================================================================
+
+# Run this script to set up local Git hooks for this project.
+
+# Project configuration instructions:
+#
+# - Publish a "hooks" branch in the project repository such that
+#   clones will have "refs/remotes/origin/hooks".
+#
+# - Populate adjacent "config" file with:
+#    hooks.url    = Repository URL publishing "hooks" branch
+#    hooks.branch = Repository branch instead of "hooks"
+
+egrep-q() {
+	egrep "$@" >/dev/null 2>/dev/null
+}
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Select a hooks branch.
+if url=$(git config --get hooks.url); then
+	# Fetch hooks from locally configured repository.
+	branch=$(git config hooks.branch || echo hooks)
+elif git for-each-ref refs/remotes/origin/hooks 2>/dev/null |
+     egrep-q 'refs/remotes/origin/hooks$'; then
+	# Use hooks cloned from origin.
+	url=.. && branch=remotes/origin/hooks
+elif url=$(git config -f config --get hooks.url); then
+	# Fetch hooks from project-configured repository.
+	branch=$(git config -f config hooks.branch || echo hooks)
+else
+	die 'This project is not configured to install local hooks.'
+fi &&
+
+# Populate ".git/hooks".
+echo 'Setting up git hooks...' &&
+git_dir=$(git rev-parse --git-dir) &&
+mkdir -p "$git_dir/hooks" &&
+cd "$git_dir/hooks" &&
+if ! test -e .git; then
+	git init -q || die 'Could not run git init for hooks.'
+fi &&
+git fetch -q "$url" "$branch" &&
+git reset -q --hard FETCH_HEAD || die 'Failed to install hooks'

setup-ssh

+#!/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.
+#=============================================================================
+
+# Run this script to set up ssh push access to the repository host.
+
+# Project configuration instructions:
+#
+# - Populate adjacent "config" file with:
+#    ssh.host = Repository host name
+#    ssh.user = Username on host, if not "git"
+#    ssh.key = Local ssh key name
+#    ssh.request-url = Web page URL to request ssh access
+
+egrep-q() {
+	egrep "$@" >/dev/null 2>/dev/null
+}
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Load the project configuration.
+host=$(git config -f config --get ssh.host) &&
+user=$(git config -f config --get ssh.user || echo git) &&
+key=$(git config -f config --get ssh.key) &&
+request_url=$(git config -f config --get ssh.request-url) ||
+die 'This project is not configured for ssh push access.'
+
+# Check for existing configuration.
+if test -r ~/.ssh/config &&
+   egrep-q 'Host[= ]'"${host//\./\\.}" ~/.ssh/config; then
+	echo 'Host "'"$host"'" is already in ~/.ssh/config' &&
+	setup= &&
+	question='Test'
+else
+	echo 'Host "'"$host"'" not found in ~/.ssh/config' &&
+	setup=1 &&
+	question='Setup and test'
+fi &&
+
+# Ask the user whether to make changes.
+echo '' &&
+read -ep "${question} push access by ssh to $user@$host? [y/N]: " access &&
+if test "$access" != "y" -a "$access" != "Y"; then
+	exit 0
+fi &&
+
+# Setup host configuration if necessary.
+if test -n "$setup"; then
+	if ! test -d ~/.ssh; then
+		mkdir -p ~/.ssh &&
+		chmod 700 ~/.ssh
+	fi &&
+	if ! test -f ~/.ssh/config; then
+		touch ~/.ssh/config &&
+		chmod 600 ~/.ssh/config
+	fi &&
+	ssh_config='Host='"$host"'
+  IdentityFile ~/.ssh/'"$key" &&
+	echo "Adding to ~/.ssh/config:
+
+$ssh_config
+" &&
+	echo "$ssh_config" >> ~/.ssh/config &&
+	if ! test -e ~/.ssh/"$key"; then
+		if test -f ~/.ssh/id_rsa; then
+			# Take care of the common case.
+			ln -s id_rsa ~/.ssh/"$key"
+			echo '
+Assuming ~/.ssh/id_rsa is the private key corresponding to the public key for
+
+  '"$user@$host"'
+
+If this is incorrect place private key at "~/.ssh/'"$key"'".'
+		else
+			echo '
+Place the private key corresponding to the public key registered for
+
+  '"$user@$host"'
+
+at "~/.ssh/'"$key"'".'
+		fi
+		read -e -n 1 -p 'Press any key to continue...'
+	fi
+fi || exit 1
+
+# Test access configuration.
+echo 'Testing ssh push access to "'"$user@$host"'"...' &&
+if ! ssh "$user@$host" info; then
+	die 'No ssh push access to "'"$user@$host"'".  You may need to request access at
+
+  '"$request_url"'
+'
+fi

setup-stage

+#!/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.
+#=============================================================================
+
+# Run this script to set up the topic stage for pushing changes.
+
+# Project configuration instructions:
+#
+# - Run a Topic Stage repository next to the main project repository.
+#
+# - Populate adjacent "config" file with:
+#    stage.url = Topic Stage repository URL
+#    stage.pushurl = Topic Stage push URL if not "$url"
+
+egrep-q() {
+	egrep "$@" >/dev/null 2>/dev/null
+}
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Load the project configuration.
+fetchurl_=$(git config -f config --get stage.url) &&
+pushurl_=$(git config -f config --get stage.pushurl || echo "$fetchurl_") &&
+remote=$(git config -f config --get stage.remote || echo 'stage') ||
+die 'This project is not configured to use a topic stage.'
+
+# Get current stage push URL.
+pushurl=$(git config --get remote."$remote".pushurl ||
+	  git config --get remote."$remote".url || echo '') &&
+
+# Tell user about current configuration.
+if test -n "$pushurl"; then
+	echo 'Remote "'"$remote"'" is currently configured to push to
+
+  '"$pushurl"'
+' &&
+	read -ep 'Reconfigure Topic Stage? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		setup=1
+	else
+		setup=''
+	fi
+else
+	setup=1
+fi
+
+# Perform setup if necessary.
+if test -n "$setup"; then
+	echo 'Setting up the topic stage...' &&
+	fetchurl="${fetchurl_}" &&
+	if test -z "$pushurl"; then
+		git remote add "$remote" "$fetchurl"
+	else
+		git config remote."$remote".url "$fetchurl"
+	fi &&
+	pushurl="${pushurl_}" &&
+	if test "$pushurl" != "$fetchurl"; then
+		git config remote."$remote".pushurl "$pushurl"
+	fi &&
+	echo 'Remote "'"$remote"'" is now configured to push to
+
+  '"$pushurl"'
+'
+fi || die 'Could not configure the topic stage remote.'

setup-upstream

+#!/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.
+#=============================================================================
+
+# Run this script to set up the local Git repository to use the
+# preferred upstream repository URLs.
+
+# Project configuration instructions:
+#
+# - Populate adjacent "config" file with:
+#    upstream.url = Preferred fetch url for upstream remote
+#    upstream.remote = Preferred name for upstream remote, if not "origin"
+
+die() {
+	echo 1>&2 "$@" ; exit 1
+}
+
+# Make sure we are inside the repository.
+cd "${BASH_SOURCE%/*}" &&
+
+# Load the project configuration.
+url=$(git config -f config --get upstream.url) &&
+remote=$(git config -f config --get upstream.remote ||
+	 echo 'origin') ||
+die 'This project is not configured to use a preferred upstream repository.'
+
+# Get current upstream URLs.
+fetchurl=$(git config --get remote."$remote".url || echo '') &&
+pushurl=$(git config --get remote."$remote".pushurl || echo '') &&
+
+if test "$fetchurl" = "$url"; then
+	echo 'Remote "'"$remote"'" already uses recommended upstream repository.'
+	exit 0
+fi
+
+upstream_recommend='
+We recommended configuring the "'"$remote"'" remote to fetch from upstream at
+
+  '"$url"'
+'
+
+# Tell user about current configuration.
+if test -n "$fetchurl"; then
+	echo 'Remote "'"$remote"'" is currently configured to fetch from
+
+  '"$fetchurl"'
+' &&
+	if test -n "$pushurl"; then
+		echo 'and push to
+
+  '"$pushurl"
+	fi &&
+	echo "$upstream_recommend" &&
+	if test -n "$pushurl"; then
+		echo 'and to never push to it directly.
+'
+	fi &&
+
+	read -ep 'Reconfigure "'"$remote"'" remote as recommended? [y/N]: ' ans &&
+	if [ "$ans" == "y" ] || [ "$ans" == "Y" ]; then
+		setup=1
+	else
+		setup=''
+	fi
+else
+	echo 'Remote "'"$remote"'" is not yet configured.' &&
+	echo "$upstream_recommend" &&
+	read -ep 'Configure "'"$remote"'" remote as recommended? [Y/n]: ' ans &&
+	if [ "$ans" == "n" ] || [ "$ans" == "N" ]; then
+		exit 0
+	else
+		setup=1
+	fi
+fi &&
+
+# Perform setup if necessary.
+if test -n "$setup"; then
+	if test -z "$fetchurl"; then
+		git remote add "$remote" "$url"
+	else
+		git config remote."$remote".url "$url" &&
+		if old=$(git config --get remote."$remote".pushurl); then
+			git config --unset remote."$remote".pushurl ||
+			echo 'Warning: failed to unset remote.'"$remote"'.pushurl'
+		fi
+	fi &&
+	echo 'Remote "'"$remote"'" is now configured to fetch from
+
+  '"$url"'
+'
+fi

setup-user

+#!/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.
+#=============================================================================
+
+# Run this script to configure Git user info in this repository.
+
+# Project configuration instructions: NONE
+
+for (( ; ; )); do
+	user_name=$(git config user.name || echo '') &&
+	user_email=$(git config user.email || echo '') &&
+	if test -n "$user_name" -a -n "$user_email"; then
+		echo 'Your commits will record as Author:
+
+  '"$user_name <$user_email>"'
+' &&
+		read -ep 'Is the author name and email address above correct? [Y/n] ' correct &&
+		if test "$correct" != "n" -a "$correct" != "N"; then
+			break
+		fi
+	fi &&
+	read -ep 'Enter your full name e.g. "John Doe": ' name &&
+	read -ep 'Enter your email address e.g. "john@gmail.com": ' email &&
+	git config user.name "$name" &&
+	git config user.email "$email"
+done

tips

+#!/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.
+#=============================================================================
+
+# This script makes optional suggestions for working with Git.
+
+# Project configuration instructions: NONE
+
+egrep-q() {
+	egrep "$@" >/dev/null 2>/dev/null
+}
+
+# Suggest color configuration.
+if test -z "$(git config --get color.ui)"; then
+	echo '
+One may enable color output from Git commands with
+
+  git config --global color.ui auto
+'
+fi
+
+# Suggest bash completion.
+if ! bash -i -c 'echo $PS1' | egrep-q '__git_ps1'; then
+	echo '
+A dynamic, informative Git shell prompt can be obtained by sourcing
+the git bash-completion script in your "~/.bashrc".  Set the PS1
+environmental variable as suggested in the comments at the top of the
+bash-completion script.  You may need to install the bash-completion
+package from your distribution to obtain it.
+'
+fi
+
+# Suggest merge tool.
+if test -z "$(git config --get merge.tool)"; then
+	echo '
+One may configure Git to load a merge tool with
+
+  git config merge.tool <toolname>
+
+See "git help mergetool" for more information.
+'
+fi