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192 lines
7.2 KiB
Markdown
192 lines
7.2 KiB
Markdown
This document describes the way you can contribute to the restic project.
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Ways to Help Out
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================
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Thank you for your contribution!
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There are several ways you can help us out. First of all code contributions and
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bug fixes are most welcome. However even "minor" details as fixing spelling
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errors, improving documentation or pointing out usability issues are a great
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help also.
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The restic project uses the GitHub infrastructure (see the
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[project page](https://github.com/restic/restic)) for all related discussions
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as well as the `#restic` channel on `irc.freenode.net`.
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If you want to find an area that currently needs improving have a look at the
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open issues listed at the
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[issues page](https://github.com/restic/restic/issues). This is also the place
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for discussing enhancement to the restic tools.
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If you are unsure what to do, please have a look at the issues, especially
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those tagged
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[minor complexity](https://github.com/restic/restic/labels/minor%20complexity).
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Reporting Bugs
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==============
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You've found a bug? Thanks for letting us know so we can fix it! It is a good
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idea to describe in detail how to reproduce the bug (when you know how), what
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environment was used and so on. Please tell us at least the following things:
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* What's the version of restic you used? Please include the output of
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`restic version` in your bug report.
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* What commands did you execute to get to where the bug occurred?
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* What did you expect?
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* What happened instead?
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* Are you aware of a way to reproduce the bug?
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Remember, the easier it is for us to reproduce the bug, the earlier it will be
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corrected!
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In addition, you can compile restic with debug support by running
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`go run build.go -tags debug` and instructing it to create a debug log by
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setting the environment variable `DEBUG_LOG` to a file, e.g. like this:
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$ export DEBUG_LOG=/tmp/restic-debug.log
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$ restic backup ~/work
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Please be aware that the debug log file will contain potentially sensitive
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things like file and directory names, so please either redact it before
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uploading it somewhere or post only the parts that are really relevant.
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Development Environment
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=======================
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For development you need the build tool [`gb`](https://getgb.io), it can be
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installed by running the following command:
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$ go get github.com/constabulary/gb/...
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The repository contains two directories with code: `src/` contains the code
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written for restic, whereas `vendor/` contains copies of libraries restic
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depends on. The libraries are managed with the `gb vendor` command.
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Just clone the repository, `cd` to it and run `gb build` to build the binary:
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$ git clone https://github.com/restic/restic
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$ cd restic
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$ gb build
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[...]
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$ bin/restic version
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restic compiled manually
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compiled at unknown time with go1.6
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The following commands can be used to run all the tests:
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$ gb test
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ok github.com/restic/restic 8.174s
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[...]
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If you want to run your tests on Linux, OpenBSD or FreeBSD, you can use
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[vagrant](https://www.vagrantup.com/) with the proveded `Vagrantfile` to
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quickly set up VMs and run the tests, e.g.:
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$ vagrant up freebsd
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[...]
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$ vagrant ssh freebsd -c 'cd restic/restic; go test -v ./...'
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[...]
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The default `go` tool can also be used by setting the environment variable
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`GOPATH` to the following value while being in the top level directory in the
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git repository:
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$ export GOPATH=$PWD:$PWD/vendor
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The file `.envrc` allows automatic `GOPATH` configuration with
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[direnv](https://direnv.net/), inspect the file and then allow automatic
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configuration by running `direnv allow`.
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Providing Patches
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=================
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You have fixed an annoying bug or have added a new feature? Very cool! Let's
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get it into the project! The workflow we're using is also described on the
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[GitHub Flow](https://guides.github.com/introduction/flow/) website, it boils
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down to the following steps:
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0. If you want to work on something, please add a comment to the issue on
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GitHub. For a new feature, please add an issue before starting to work on
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it, so that duplicate work is prevented.
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1. First we would kindly ask you to fork our project on GitHub if you haven't
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done so already.
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2. Clone the repository locally and create a new branch. If you are working on
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the code itself, please set up the development environment as described in
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the previous section.
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3. Then commit your changes as fine grained as possible, as smaller patches,
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that handle one and only one issue are easier to discuss and merge.
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4. Push the new branch with your changes to your fork of the repository.
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5. Create a pull request by visiting the GitHub website, it will guide you
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through the process.
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6. You will receive comments on your code and the feature or bug that they
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address. Maybe you need to rework some minor things, in this case push new
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commits to the branch you created for the pull request, they will be
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automatically added to the pull request.
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7. Once your code looks good and passes all the tests, we'll merge it. Thanks
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a low for your contribution!
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Please provide the patches for each bug or feature in a separate branch and
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open up a pull request for each.
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The restic project uses the `gofmt` tool for Go source indentation, so please
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run
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gofmt -w **/*.go
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in the project root directory before committing. Installing the script
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`fmt-check` from https://github.com/edsrzf/gofmt-git-hook locally as a
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pre-commit hook checks formatting before committing automatically, just copy
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this script to `.git/hooks/pre-commit`.
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For each pull request, several different systems run the integration tests on
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Linux, OS X and Windows. We won't merge any code that does not pass all tests
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for all systems, so when a tests fails, try to find out what's wrong and fix
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it. If you need help on this, please leave a comment in the pull request, and
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we'll be glad to assist. Having a PR with failing integration tests is nothing
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to be ashamed of. In contrast, that happens regularly for all of us. That's
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what the tests are there for.
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Git Commits
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-----------
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I would be good if you could follow the same general style regarding Git
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commits as the rest of the project, this makes reviewing code, browsing the
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history and triaging bugs much easier.
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Git commit messages have a very terse summary in the first line of the commit
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message, followed by an empty line, followed by a more verbose description or a
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List of changed things. For examples, please refer to the excellent [How to
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Write a Git Commit Message](http://chris.beams.io/posts/git-commit/).
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If you change/add multiple different things that aren't related at all, try to
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make several smaller commits. This is much easier to review. Using `git add -p`
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allows staging and committing only some changes.
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Code Review
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===========
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The restic project encourages actively reviewing the code, as it will store
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your precious data, so it's common practice to receive comments on provided
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patches.
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If you are reviewing other contributor's code please consider the following
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when reviewing:
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* Be nice. Please make the review comment as constructive as possible so all
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participants will learn something from your review.
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As a contributor you might be asked to rewrite portions of your code to make it
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fit better into the upstream sources.
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