Common contributing steps

Most of the steps for working in this repo are the same as those for working in https://github.com/microsoft/typespec. Refer to https://github.com/microsoft/typespec/blob/main/CONTRIBUTING.md for most common day-to-day operations. The rest of this document only covers the things that are unique to this repo.

Testing a change in repo azure-rest-api-specs

If you are proposing a change that is likely to impact existing specs, it's recommended to test a private of the change before merging.

Create a fork of https://github.com/azure/azure-rest-api-specs (if you don't already have one)
Create a branch from main you will use to create the test PR
Find the URL of the private build of your test package(s)
1. Browse to your PR in repo microsoft/typespec or azure/typespec-azure
2. Select the "Checks" tab, the "Verify PR" pipeline, then click "View more details on Azure Pipelines"
3. Click the link "# published" which shows the artifacts published by the build
4. Expand "packages", find the package you need to test, click the three vertical dots on the selected line, then "Copy download URL".
In your branch of azure-rest-api-specs, edit the root package.json, and replace the version with the URL to your private build, for example:
```
- "@azure-tools/typespec-autorest": "0.36.0",
+ "@azure-tools/typespec-autorest": "https://.../package.tgz"
```
Also edit eng/pipelines/templates/steps/npm-install.yml, to force install your private build:
```
- - script: npm ci
+ - script: npm i --no-package-lock --force
```
Create a draft PR from your fork branch.
In a few minutes, view the results of check "TypeSpec Validation - All".
- If the check is green, it means your change did not impact any specs currently in azure-rest-api-specs/main.
- If the check is red, click through to the DevOps log to see why each spec failed (e.g. violation of new linter rule, change to generated autorest), and determine the course of action.

Example: Azure/azure-rest-api-specs#26684

Working with the core submodule

This repository uses a git submodule for the TypeSpec OSS core.

This section covers some basic everyday tasks for working with it. The steps below are are really just one possible workflow. There's more than one way to accomplish these tasks and if you prefer to do it differently, that's fine too!

Configuring git to recurse submodules automatically for most commands

Run the following command:

git config --global submodule.recurse true

This will effectively pass --recurse-submodules for you to git commands that accept it. It should eliminate some of the common pain points around submodules.

NOTE: git clone is exceptional, see below.

Cloning recursively

git clone does not recurse submodules automatically, even with submodule.recurse=true as configured above.

Fork the repo, then clone recursively as follows:

git clone --recurse-submodules https://github.com/(your_username)/typespec-azure

Updating and initializing the submodule

In some situations, even with the above setting, you may still end up with the core/ folder being uninitialized and not having a good clone of microsoft/typespec, or with the core/ folder initialized, but checked out to the wrong commit for the current branch. To fix this, run the following command to update and initialize the submodule:

git submodule update --init

Point the submodule origin remote to your fork

You can change the remotes of the submodule so that origin is your fork of microsoft/typespec rather than microsoft/typespec itself, and microsoft/typespec is upstream:

cd [repo_root]
cd core
git remote remove origin
git remote add origin https://github.com/(your_username)/typespec
git remote add upstream https://github.com/microsoft/typespec

Forcing dependabot to send a submodule update PR

Normally, the submodule is updated automatically once per day (except on weekends) by automated PRs from dependabot. If you would like dependabot to perform an update right away, you can:

Go here: https://github.com/Azure/typespec-azure/network/updates
Click on "Last updated X hours ago" link
Click on "Check for updates button"

Making a cross-cutting change across both repos

Make matching branches:

cd core
git checkout -b featurebranch

cd ..
git checkout -b featurebranch

Make your changes as needed to both repos.
Commit changes to both repos:

cd core
git commit -a -m "Core part of my change"

cd ..
git commit -a -m "Azure-specific part of my change"

Push

git push origin featurebranch

NOTE: If you configured submodule.recurse=true as shown above, this will automatically push the submodule typespec branch along with the typespec-azure branch. If you prefer not to use that, then cd core and push that too.

Create 2 PRs from the two branches that were pushed to your microsoft/typespec and Azure/typespec-azure forks. Start with the microsoft/typespec PR, then follow up with the Azure/typespec-azure PR that depends on it.
Get approval for both PRs before merging either of them.
Merge the microsoft/typespec PR first.
Update the submodule to point to the actual commit you merged to microsoft/typespec main:

cd core
git fetch --all
git checkout upstream/main

cd ..
git commit -a -m "Update submodule"
git push origin featurebranch

Merge the typespec-azure PR and you're done.

Note that you only need to do all of the above when your changes span both repos. If you are only changing one repo or the other, then just work in each individual repo as you would any other.

E2E tests

Run tests same as the ci:

pnpm e2e-tests

Test with local cadl-ranch repo

pnpm e2e-tests --local-cadl-ranch=<path> # where path is the absolute path to your local cadl-ranch repo.
# Example
pnpm e2e-tests --local-cadl-ranch=/Users/some/dev/cadl-ranch

Publishing

Prerequisites

Install the GitHub CLI and configure your account. Some of the tools use your GitHub account.
Check that validation of the typespec-next branch is green in pipelines.
1. Note: Anytime a new PR is merged during the release process, make sure this validation is green.
Verify that the CodeGen nightly builds are green.
1. Note: Check with codegen owners if a build is red due to a change unrelated to the TypeSpec release.

Steps

Do the following to publish a new release:

Announce to coworkers on Teams in TypeSpec Engineering channel that you will be publishing and that they should hold off on merging until the process is complete.
Make sure your working copy is clean and you are up-to-date and on the main branch (both typespec-azure and core should point to main).
Generate release notes for TypeSpec once the full list of changes are in.
1. In your fork of the core (typespec) repo, run npx chronus changelog --policy typespec > out.md.
2. Create a new entry in docs/release-notes for this release and paste the contents of out.md into the new file. Reorganize the file to have the following sections in order: Breaking Changes, Deprecations, Features, and Bug Fixes. Skip the section if there are no entries in it. Also add a blurb above these sections for any especially notable updates. Example PR: microsoft/typespec#4102
Generate release notes for TypeSpec Azure once the full list of changes are in.
1. In your fork of the typespec-azure repo, run npx chronus changelog --policy typespec-azure > out.md.
2. Create a new entry in docs/release-notes for this release and paste the contents of out.md into the new file. Reorganize the file to have the following sections in order: Breaking Changes, Deprecations, Features, and Bug Fixes. Skip the section if there are no entries in it. Also add a blurb above these sections for any especially notable updates. Example PR: Azure#1306
Once all PRs are merged, update TypeSpec-Azure core submodule (things will run more smoothly if TypeSpec-Azure core points to HEAD of TypeSpec).
1. Can trigger dependabot via Insights > Dependency graph > Dependabot.
Double-check that typespec-azure and core submodules are both up to date with upstream/main.
Regenerate documentation via pnpm regen-docs in TypeSpec-Azure.
Run pnpm prepare-publish in TypeSpec-Azure repo to stage the publishing changes.
- This creates publish/xxxxxx branches for TypeSpec-Azure and TypeSpec repos.
- If it works you'll get a message like this: Success! Push publish/kvd01q9v branches and send PRs.
- Double-check that updated version numbers are correct. Running the tool multiple times will increment the version number multiple times as well.
Push and merge TypeSpec (core) PR.
Update core submodule to use main in TypeSpec-Azure publish/ branch and push/merge PR.
Make sure release pipeline completed and packages are on NPM.

Followups

Upgrade https://github.com/Azure/azure-rest-api-specs to use new versions of TypeSpec.
1. Example PR: Azure/azure-rest-api-specs#30122
Upgrade https://github.com/Azure/cadl-ranch to use new versions of TypeSpec.
1. Example PR: Azure/cadl-ranch#668
Send an email to the TypeSpec Partners group announcing the release.

NOTE: The reason for step 1 to ask for folks to avoid merging while publishing is in progress is that any changes merged to the repo while the publish PR would become part of the release, but the release changelogs would not include their descriptions. For this reason, publish PRs will fail if this happens and you will have to close them and start over. In the case where you are in another time zone and unable to coordinate with the rest of the team, it may be easier to ask on Teams for someone in a closer time zone to coordinate and perform the publish in the morning.

Make a patch release

main branch always points the latest changes. This means in the case an important bug fix needs to make an earlier release this flow must be followed:

Depending on the package where the fix needs to go do this on the Microsoft/typespec repo or this repo Azure/typespec-azure

1. Make your fix

(only have not done for this sprint yet) Find the commit from the last release and make a new branch called release/<sprint-name> at that commit. For example release/october-2022. Push the branch to upstream.
Make a new branch with your fix like any other bug fix or new feature
Run pnpm change add or use the link in the PR comment to make the comment
Make a new PR from that branch targeting the release/xyz branch
Wait for CI & approval, then squash merge

2. Release the hot fix

Make a new branch in this format publish/hotfix/<hotfix-name> against the release/xyz branch
Run pnpm chronus version --ignore-policies to bump the versions, commit push, make PR, wait for CI and squash merge.
The package should then get published

3. Backmerge

A workflow should run automatically and create a branch named backmerge/release/xyz-YYYY-MM-DD.
Find the backmerge branch here and click "New pull request".
Rebase merge the new backmerge PR into main.

Labels

TypeSpec repo use labels to help categorize and manage issues and PRs. The following is a list of labels and their descriptions.

Labels reference

area

Area of the codebase

Name	Color	Description
`lib:tcgc`	#957300	Issues for @azure-tools/typespec-client-generator-core library
`lib:azure-core`	#957300	Issues for @azure-tools/typespec-azure-core library
`lib:azure-resource-manager`	#957300	Issues for @azure-tools/typespec-azure-core library
`emitter:autorest`	#957300	Issues for @azure-tools/typespec-autorest emitter
`eng`	#65bfff

issue_kinds

Issue kinds

Name	Color	Description
`bug`	#d93f0b	Something isn't working
`feature`	#cccccc	New feature or request
`docs`	#cccccc	Improvements or additions to documentation
`epic`	#cccccc

breaking-change

Labels around annotating issues and PR if they contain breaking change or deprecation

Name	Color	Description
`breaking-change`	#B60205	A change that might cause specs or code to break
`deprecation`	#760205	A previously supported feature will now report a warning and eventually be removed

design-issues

Design issue management

Name	Color	Description
`design:accepted`	#1a4421	Proposal for design has been discussed and accepted.
`design:needed`	#96c499	A design request has been raised that needs a proposal
`design:proposed`	#56815a	Proposal has been added and ready for discussion

process

Process labels

Name	Color	Description
`needs-area`	#ffffff
`needs-info`	#ffffff	Mark an issue that needs reply from the author or it will be closed automatically
`triaged:core`	#5319e7

misc

Misc labels

Name	Color	Description
`good first issue`	#7057ff	Good for newcomers

external

External tools

Name	Color	Description
`external:swagger-converter`	#7057ff	Issues related to the swagger-converter tool
`external:mgmt`	#7057ff

Provide feedback

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CONTRIBUTING.md

CONTRIBUTING.md

Common contributing steps

Testing a change in repo azure-rest-api-specs

Working with the core submodule

Configuring git to recurse submodules automatically for most commands

Cloning recursively

Updating and initializing the submodule

Point the submodule origin remote to your fork

Forcing dependabot to send a submodule update PR

Making a cross-cutting change across both repos

E2E tests

Run tests same as the ci:

Test with local cadl-ranch repo

Publishing

Prerequisites

Steps

Followups

Make a patch release

1. Make your fix

2. Release the hot fix

3. Backmerge

Labels

Labels reference

area

issue_kinds

breaking-change

design-issues

process

misc

external

Files

CONTRIBUTING.md

Latest commit

History

CONTRIBUTING.md

File metadata and controls

Common contributing steps

Testing a change in repo azure-rest-api-specs

Working with the core submodule

Configuring git to recurse submodules automatically for most commands

Cloning recursively

Updating and initializing the submodule

Point the submodule origin remote to your fork

Forcing dependabot to send a submodule update PR

Making a cross-cutting change across both repos

E2E tests

Run tests same as the ci:

Test with local cadl-ranch repo

Publishing

Prerequisites

Steps

Followups

Make a patch release

1. Make your fix

2. Release the hot fix

3. Backmerge

Labels

Labels reference

area

issue_kinds

breaking-change

design-issues

process

misc

external