1 * https://www.ruby-lang.org/ - The homepage of Ruby which has more links and some great tutorials.
2 * https://rubyonrails.org/ - The homepage of Rails, also has links and tutorials.
6 We use [Rubocop](https://github.com/rubocop-hq/rubocop) (for ruby files)
7 and [ERB Lint](https://github.com/Shopify/erb-lint) (for erb templates)
8 to help maintain consistency in our code. You can run these utilities during
9 development to check that your code matches our guidelines:
13 bundle exec rails eslint
17 You can also install hooks to have git run checks automatically when
18 you commit using [overcommit](https://github.com/sds/overcommit) with:
21 bundle exec overcommit --install
26 Having a good suite of tests is very important to the stability and
27 maintainability of any code base. The tests in the `openstreetmap-website` code are
28 by no means complete, but they are extensive, and must continue to be
29 so with any new functionality which is written. Tests are also useful
30 in giving others confidence in the code you've written, and can
31 greatly speed up the process of merging in new code.
33 When contributing, you should:
35 * Write new tests to cover the new functionality you've added.
36 * Where appropriate, modify existing tests to reflect new or changed
38 * Never comment out or remove a test just because it doesn't pass.
40 You can run the existing test suite with:
43 bundle exec rails test:all
46 You can view test coverage statistics by browsing the `coverage` directory.
48 The tests are automatically run on Pull Requests and other commits via github
49 actions. The results shown are within the PR display on github.
53 We also perform static analysis of our code. You can run the analysis yourself with:
56 bundle exec brakeman -q
61 Sometimes it's not apparent from the code itself what it does, or,
62 more importantly, **why** it does that. Good comments help your fellow
63 developers to read the code and satisfy themselves that it's doing the
66 When contributing, you should:
68 * Comment your code where necessary - explain the bits which
69 might be difficult to understand what the code does, why it does it
70 and why it should be the way it is.
71 * Check existing comments to ensure that they are not misleading.
75 If you make a change that involve the locale files (in `config/locales`) then please
76 only submit changes to the `en.yml` file. The other files are updated via
77 [Translatewiki](https://translatewiki.net/wiki/Translating:OpenStreetMap) and should
78 not be included in your pull request.
80 ### Nominatim prefixes
82 I18n keys under the `geocoder.search_osm_nominatim` keyspace are managed by the
83 Nominatim maintainers. From time to time they run stats over the Nominatim
84 database, and update the list of available keys manually.
86 Adding or removing keys to this list is therefore discouraged, but contributions
87 to the descriptive texts are welcome.
89 ### Copyright attribution
91 The list of attributions on the /copyright page is managed by the [OSMF Licensing
92 Working Group (LWG)](https://wiki.osmfoundation.org/wiki/Licensing_Working_Group).
94 If you want to add another attribution, or make changes to the text of an existing
95 attribution, please follow these steps:
97 * First, contact the LWG to discuss your proposed changes.
98 * If the LWG approves, please create a pull request with your proposed changes.
99 * Finally, please ask the LWG to formally approve the wording used in the pull request
100 (by having an LWG member comment on the PR).
102 When we have formal confirmation from LWG, we can go ahead and merge the PR.
106 When you submit your changes, the project maintainers have to read them and
107 understand them. This is difficult enough at the best of times, and
108 misunderstanding commits can lead to them being more difficult to
109 merge. To help with this, when committing you should:
111 * Split up large commits into smaller units of functionality.
112 * Keep your commit messages relevant to the changes in each individual
115 When writing commit messages please try and stick to the same style as
116 other commits, namely:
118 * A one line summary, starting with a capital and with no full stop.
120 * Full description, as proper sentences with capitals and full stops.
122 For simple commits the one line summary is often enough and the body
123 of the commit message can be left out.
127 If you have forked on GitHub then the best way to submit your patches is to
128 push your changes back to GitHub and then send a "pull request" on GitHub.
130 If your pull request is small, for example one or two commits each containing
131 only a few lines of code, then it is easy for the maintainers to review.
133 If you are creating a larger pull request, then please help the maintainers
134 with making the reviews as straightforward as possible:
136 * The smaller the PR, the easier it is to review. In particular if a PR is too
137 large to review in one sitting, or if changes are requested, then the
138 maintainer needs to repeatedly re-read code that has already been considered.
139 * The commit history is important. This is a large codebase, developed over many
140 years by many developers. We frequently need to read the commit history (e.g.
141 using `git blame`) to figure out what is going on. So small, understandable,
142 and relevant commits are important for other developers looking back at your
145 If you are creating a large pull request then please:
147 * Consider splitting your pull request into multiple PRs. If part of your work
148 can be considered standalone, or is a foundation for the rest of your work,
149 please submit it separately first.
150 * Avoid including "fixup" commits. If you have added a fixup commit (for example
151 to fix a rubocop warning, or because you changed your own new code) please
152 combine the fixup commit into the commit that introduced the problem.
153 `git rebase -i` is very useful for this.
154 * Avoid including "merge" commits. If your PR can no longer be merged cleanly
155 (for example, an unrelated change to Gemfile.lock on master now conflicts with
156 your PR) then please rebase your PR onto the latest master. This allows you to
157 fix the conflicts, while keeping the PR a straightforward list of commits. If
158 there are no conflicts, then there is no need to rebase anything.