Co-authored-by: Katerina Skroumpelou <mandarini@users.noreply.github.com> Co-authored-by: Colum Ferry <cferry09@gmail.com> Co-authored-by: Emily Xiong <xiongemi@gmail.com> Co-authored-by: Nicholas Cunningham <ndcunningham@gmail.com> Co-authored-by: Jason Jean <jasonjean1993@gmail.com> Co-authored-by: Victor Savkin <mail@vsavkin.com> Co-authored-by: Jack Hsu <jack.hsu@gmail.com>
40 lines
1.7 KiB
Markdown
40 lines
1.7 KiB
Markdown
# Configuring CI Using Circle CI and Nx
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Below is an example of an Circle CI setup, building and testing only what is affected.
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```yaml {% fileName=".circleci/config.yml" %}
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version: 2.1
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orbs:
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nx: nrwl/nx@1.5.1
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jobs:
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main:
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docker:
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- image: cimg/node:lts-browsers
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steps:
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- checkout
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- run: npx nx-cloud start-ci-run --distribute-on="5 linux-medium-js" --stop-agents-after="build" # this line enables distribution
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- run: npm ci
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- nx/set-shas
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- run: npx nx-cloud record -- nx format:check
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- run: npx nx affected --base=$NX_BASE --head=$NX_HEAD -t lint test build --parallel=3
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workflows:
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build:
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jobs:
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- main
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```
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### Get the Commit of the Last Successful Build
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`CircleCI` can track the last successful run on the `main` branch and use this as a reference point for the `BASE`. The `Nx Orb` provides a convenient implementation of this functionality which you can drop into your existing CI config. Specifically, `nx/set-shas` populates the `$NX_BASE` environment variable with the commit SHA of the last successful run.
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To understand why knowing the last successful build is important for the affected command, check out the [in-depth explanation in Orb's docs](https://github.com/nrwl/nx-orb#background).
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### Using CircleCI in a private repository
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To use the [Nx Orb](https://github.com/nrwl/nx-orb) with a private repository on your main branch, you need to grant the orb access to your CircleCI API. You can do this by creating an environment variable called `CIRCLE_API_TOKEN` in the context or the project.
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{% callout type="warning" title="Caution" %}
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It should be a user token, not the project token.
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{% /callout %}
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