Coding Best Practices


All code repositories adopt our standard linting rules found in the flowforge/.github repository.

We use StandardJS, with one exception - 4 spaces not 2.

If you're using VSCode, then we recommend using the ESLint extenstion and setting all for the Eslint › Code Actions On Save: Mode setting:

ESLint - Action on Save

In the case of working with vue or njk files (found in the frontend and website repositories), then you can add vue and njk to the Eslint: Probe setting in order to enable auto-formatting on save for these file types.

ESLint - Probe

Editor Config

The website repository uses a .editorconfig to allow editors to automatically pick up the correct style for that repository. Some editors, like neovim, has this pre-installed. If you're using VSCode, an plugin is available.

Git Best Practices


Take care when adding files to a commit. It's easy just to git add -A (i.e. add all local changes to a commit) but this can result in commits and PRs being clogged with excessive changes that aren't linked to the actual issue/feature at hand.

Take your time when committing files. Review each file carefully and ensure what you're adding to a commit is relevant and necessary.

Git Commit Messages

  • Capitalise the first letter, no trailing dot, 72 chars or less.
  • First line should be an imperative/present tense, e.g. Change (not Changed or Changes)
  • Do not include the issue number in the first line, this means that commit message are then suitable to include in a changelog as-is.
  • Second line should either be blank, or reference to an issue/PR using one of the GitHub recognised keywords, e.g. closes #... fixes #... part of #...
  • The remainder should be any further narrative that is needed. Wrapped at 72 chars.

Branching vs. Forking

Commits must never be pushed directly to main. Instead, branch or fork from the relevant branch (most likely main) and work from there.

It is preferred that new work be added on a branch (rather than in a forked repository), although this is not enforced. Branch names should be short, informative, and if directly linked to a single issue number, reference such issue number, e.g. 29-issue-summary.

Once code is merged, please close any related branches in order to keep the repository tidy.

Pull Requests

PRs, when opened, should have at least one reviewer assigned, and a consequent review approved, before any merge takes place. If a PR is opened for review/discussion purposes, this PR should be set to draft state.

When merging a PR, you should choose the "Merge pull request" option. There is no need to rebase or squash the PR commits.

When conducting a PR review, if you are the last (or only) reviewer and all reviews (including your own) are approvals, unless there is a comment from the author stating otherwise, you are free to conduct the merge. Otherwise, leave the merge to the author of the PR, or a future reviewer.

For a comprehensive review of the Pull Request, utilize the designated FlowFuse pre-staging environment. As of the composition of this document, the pre-staging verification is only available for the primary FlowFuse NPM package. To validate changes within the pre-staging environment, apply the deploy:pr label to the PR. The PR will then undergo automatic deployment to the pre-staging environment, and the deployment link will be appended to the associated workflow summary. The label should remain until the PR is merged. A unique pre-staging environment is established for each Pull Request. This environment is terminated upon PR merging or closure. The FlowFuse application deployed from the Pull Request comes pre-configured. Access credentials for the pre-staging environment are located in the FlowFuse 1Password vault.