Notice: This repo has largely been left by the wayside and while it still has plenty of useful information, some of it should be considered out of date. We welcome any contributions aimed at improving the organization and content of this repo.

Welcome to the coding resources repository for Tendermint. This README is intended as a guide for both for external contributors and new hires. The CONTRIBUTING.md of every repo should link to this repo. The files in this repo are an amalgamation from various places and any help consolidating/organizing them will be greatly appreciated.

Most production repositories should have:

• Makefile
• version bump when merge to master
• PR/ISSUE/CONTRIBUTING files/templates
• a CODEOWNERS file (in .github) showing who gets to do what
• a LICENSE file and adherence to that license in the source code (e.g., file headers)

Support, or "minor" repos have more flexibility in the process. Have a gander to see how they each operate.

Submitting a PR:

• Branch from the tip of the active development branch (develop for major repos, master for minor repos.
• Review the go coding standards. Follow them closely.
• Make some (or one) commits, in logical order and with a useful commit comment.
• Link to all relevant issues, if any. The PR or the first issue should contain a detailed description.
• Await response from other users, maintainers, and/or colleagues.
• Assign a PR to a maintainer if it is uncontroversial in its changes, has few lines of code changed, or will require minimal cognitive overhead to review. These PRs should rarely require requested changed. PRs submitted with significant changes should request a review from a maintainer of that repo.
• Read the markdown files in this repo (and experiment with the scripts) for more information about coding at Tendermint.
• Don't change code, whether broken or not, without a Github issue/PR that documents the prior behavior, reason for changes, and new behavior. Especially document all aspects of prior behavior before changing/refactoring working code.

Reviewing a PR:

Any and all review is welcome, even if it is asking for a clarification. Locally testing the code that is up for review is strongly suggested. Here's an easy way to checkout a PR in git:

Locate the section for your github remote in the .git/config file. It will look something like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git
	fetch = +refs/pull/*/head:refs/remotes/origin/pr/*

Now fetch all the pull requests:

$ git fetch origin
From github.com:joyent/node
 * [new ref]         refs/pull/1000/head -> origin/pr/1000
 * [new ref]         refs/pull/1002/head -> origin/pr/1002
 * [new ref]         refs/pull/1004/head -> origin/pr/1004
 * [new ref]         refs/pull/1009/head -> origin/pr/1009
...

To check out a particular pull request:

$ git checkout pr/999
Branch pr/999 set up to track remote branch pr/999 from origin.
Switched to a new branch 'pr/999'

Merging a PR:

Each repository will have its own reviewers and CI requirements. Small PRs should be squashed then merged with a single "Merge pull request #XYZ: [title]" commit. Larger PRs can include multiple commits, but should squash related commits for brevity, prefix each commit with the PR number, and include the same single last merge commit with the PR title. Squashing commits of a PR can be achieved using the command:

git squash -i YOURHASH^ 

where YOURHASH is oldest commit hash of your PR.

Bash Scripts

Use 'strict mode':

• http://redsymbol.net/articles/unofficial-bash-strict-mode/

Documentation

The majority of relevant documentation is hosted at:

• https://tendermint.com/docs/ and,
• https://cosmos.network/docs/

which is produced from the docs directory in Tendermint Core and Cosmos SDK, respectively. The docs/README.md in each of these repositories produces the landing page while the Table of Contents is generated from a configuration file found here (Tendermint) and here (SDK). Contact a member of the SRE team if you do not have access but require updating the ToC.