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kevinveenbirkenbachandClaude Opus 4.7
4f2dd95fe9
Add repository variable CI_RUN_ON_MAIN that gates whether pushes to main trigger CI. When unset (default), pushes to main skip CI; set to 'true' to enable. Pushes to other branches are unaffected. Reorganize GitHub Actions docs into a dedicated tools/github/actions/ directory and consolidate every CI repository variable in a single SPOT (configuration.md). Move actions.md to actions/workflows.md and branch/configuration.md to actions/configuration.md, then update every cross-reference. Trim README files to scope-only per docs/contributing/artefact/files/docs/readme_md.md. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
76 lines
3.2 KiB
Markdown
76 lines
3.2 KiB
Markdown
# CI Configuration ⚙️
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This page is the SPOT (single point of truth) for every repository variable that controls GitHub Actions CI behaviour in this repo. For the workflow catalog see [workflows.md](workflows.md); for the CI flow see [pipeline.md](../../../artefact/git/pipeline.md).
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Repository variables are set under **Settings → Secrets and variables → Actions → Variables**.
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## Variables 📋
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| Variable | Workflow | Default (unset) | Set to activate |
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| `CI_CANCEL_IN_PROGRESS` | [entry-push-latest.yml](../../../../../.github/workflows/entry-push-latest.yml) | Cancels in-progress runs on new push | `false` to keep in-progress runs alive |
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| `CI_RUN_ON_MAIN` | [entry-push-latest.yml](../../../../../.github/workflows/entry-push-latest.yml) | Pushes to `main` skip CI | `true` to run CI on `main` pushes too |
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## `CI_CANCEL_IN_PROGRESS` 🛑
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Controls whether a new push cancels an already-running CI pipeline on the same branch.
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**Default behaviour (variable not set or set to any value other than `false`):**
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In-progress runs are cancelled when a new push arrives. This is the recommended setting for most workflows.
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**To disable cancellation:**
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1. Open the repository on GitHub.
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2. Go to **Settings → Secrets and variables → Actions**.
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3. Switch to the **Variables** tab.
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4. Click **New repository variable**.
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5. Set **Name** to `CI_CANCEL_IN_PROGRESS` and **Value** to `false`.
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6. Save.
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**To re-enable cancellation:**
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Delete the variable or change its value to anything other than `false` (e.g. `true`).
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**How it works:**
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```yaml
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cancel-in-progress: ${{ vars.CI_CANCEL_IN_PROGRESS != 'false' }}
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```
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| Variable value | Expression result | Behaviour |
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|---|---|---|
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| *(not set / empty)* | `'' != 'false'` → `true` | Cancels in-progress runs ✓ |
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| `false` | `'false' != 'false'` → `false` | Does **not** cancel ✓ |
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| `true` | `'true' != 'false'` → `true` | Cancels in-progress runs ✓ |
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## `CI_RUN_ON_MAIN` 🎯
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Controls whether pushes to `main` trigger the CI pipeline. Pushes to all other branches covered by the workflow (`feature/**`, `hotfix/**`, `fix/**`, `alert-autofix-*`) are unaffected.
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**Default behaviour (variable not set or set to any value other than `true`):**
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Pushes to `main` are gated out at the `run-policy` job and CI is skipped.
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**To enable CI on `main` pushes:**
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1. Open the repository on GitHub.
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2. Go to **Settings → Secrets and variables → Actions**.
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3. Switch to the **Variables** tab.
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4. Click **New repository variable**.
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5. Set **Name** to `CI_RUN_ON_MAIN` and **Value** to `true`.
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6. Save.
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**To disable again:**
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Delete the variable or change its value to anything other than `true`.
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**How it works:**
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The gate is applied inside [push_ci_policy.sh](../../../../../scripts/meta/resolve/push_ci_policy.sh), which the `run-policy` job invokes. When `GITHUB_REF == refs/heads/main` and `CI_RUN_ON_MAIN != 'true'`, the job emits `should_run=false` and every downstream job is skipped.
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| Variable value | Ref is `main` | Behaviour |
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| *(not set / empty)* | yes | CI skipped ✓ |
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| `true` | yes | CI runs ✓ |
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| any other value | yes | CI skipped ✓ |
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| *(any)* | no | Unaffected (CI runs per branch rules) ✓ |
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