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CONTRIBUTING.md

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Contributing to Electron Installer: Snap

Electron Installer: Snap is a community-driven project. As such, we welcome and encourage all sorts of contributions. They include, but are not limited to:

We strongly suggest that before filing an issue, you search through the existing issues to see if it has already been filed by someone else.

This project is a part of the Electron ecosystem. As such, all contributions to this project follow Electron's code of conduct where appropriate.

Before opening bug reports/technical issues

Debugging

One way to troubleshoot potential problems is to set the DEBUG environment variable before calling electron-installer-snap. This will print debug information from the specified modules. The value of the environment variable is a comma-separated list of modules which support this logging feature. Known modules include:

  • electron-installer-snap:* (always use this one before filing an issue)

We use the debug module for this functionality. It has examples on how to set environment variables if you don't know how.

If you are using npm run to execute electron-installer-snap, run the electron-installer-snap command without using npm run and make a note of the output, because npm run does not print out error messages when a script errors.

Contribution suggestions

We use the label help wanted in the issue tracker to denote fairly-well-scoped-out bugs or feature requests that the community can pick up and work on. If any of those labeled issues do not have enough information, please feel free to ask constructive questions. (This applies to any open issue.)

Filing Pull Requests

Here are some things to keep in mind as you file pull requests to fix bugs, add new features, etc.:

  • Travis CI is used to make sure that the project builds packages as expected on the supported platforms, using supported Node.js versions.
  • Unless it's impractical, please write tests for your changes. This will help us so that we can spot regressions much easier.
  • If your PR changes the behavior of an existing feature, or adds a new feature, please add/edit the package's documentation.
  • This project uses the JavaScript Standard Style as a coding convention. CI will fail if the PR does not conform to this standard.
  • One of the philosophies of the project is to keep the code base as small as possible. If you are adding a new feature, think about whether it is appropriate to go into a separate Node module, and then be integrated into this project.
  • If you are contributing a nontrivial change, please add an entry to NEWS.md. The format is similar to the one described at Keep a Changelog.
  • Please do not bump the version number in your pull requests, the maintainers will do that. Feel free to indicate whether the changes require a major, minor, or patch version bump, as prescribed by the semantic versioning specification.
  • Once your pull request is approved, please make sure your commits are rebased onto the latest commit in the master branch, and that you limit/squash the number of commits created to a "feature"-level. For instance:

bad:

commit 1: add foo option
commit 2: standardize code
commit 3: add test
commit 4: add docs
commit 5: add bar option
commit 6: add test + docs

good:

commit 1: add foo option
commit 2: add bar option

Squashing commits during discussion of the pull request is almost always unnecessary, and makes it more difficult for both the submitters and reviewers to understand what changed in between comments. However, rebasing is encouraged when practical, particularly when there's a merge conflict.

If you are continuing the work of another person's PR and need to rebase/squash, please retain the attribution of the original author(s) and continue the work in subsequent commits.

Release process

  • if you aren't sure if a release should happen, open an issue
  • make sure that NEWS.md is up to date
  • make sure the tests pass
  • npm version <major|minor|patch>
  • git push && git push --tags (or git push with git config --global push.followTags true on latest git)
  • create a new GitHub release from the pushed tag with the contents of NEWS.md for that version
  • close the milestone associated with the version if one is open
  • npm publish