ci: exclude non-code folders from triggering GitHub Actions workflows

[Copilot]

Changes to .pipeline, screenshots, and examples folders should not trigger CI builds, as none of these contain buildable code. Changes to .github are excluded from non-test workflows only, so that edits to CI/UT/IT/E2E pipeline configurations continue to trigger those workflows for validation.

Changes

• ci.yml, code-lint.yml, upgrade.yml: Switched to paths-based filter on both push and pull_request triggers. The pattern includes everything (**), then excludes .github/** while re-including the workflow's own file (e.g. .github/workflows/ci.yml), and also excludes markdown/image files, hack/**, .pipeline/**, screenshots/**, and examples/**.
• codespell.yml: Converted on: [pull_request] shorthand to structured form to support paths-ignore (excludes .github/**, .pipeline/**, screenshots/**, examples/**)
• codeql-analysis.yml: Added paths-ignore to both push and pull_request triggers (excludes .pipeline/**, screenshots/**, examples/** only, keeping .github/** so workflow changes are still analyzed)
• trivy.yml: Added paths-ignore to push trigger (excludes .github/**, .pipeline/**, screenshots/**, examples/**)

paths filter used in CI/test workflows (ci.yml, code-lint.yml, upgrade.yml):

paths:
  - '**'
  - '!.github/**'
  - '.github/workflows/<workflow>.yml'  # re-includes the workflow's own file
  - '!**.md'
  - '!**.mdx'
  - '!**.png'
  - '!**.jpg'
  - '!hack/**'
  - '!.pipeline/**'
  - '!screenshots/**'
  - '!examples/**'

paths-ignore filter used in non-test workflows (codespell.yml, trivy.yml):

paths-ignore:
  - ".github/**"
  - ".pipeline/**"
  - "screenshots/**"
  - "examples/**"

Workflows not modified: pr-title-lint.yml (title check, path-agnostic by design), markdown-lint.yml (already scoped to markdown paths only), chart.yml / release.yml / setup-release.yml (tag/workflow_call triggers only, no branch push/PR).

Original prompt

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This section details on the original issue you should resolve

<issue_title>[Feature] Ensure that changes to non-code folders don't cause automatic execution of github actions.</issue_title>
<issue_description>If a change is made in any of the following repository folders, don't trigger a build. Add the folders as exclusions to existing GitHub actions.

./github
./pipeline
./screenshots
./examples</issue_description>

Comments on the Issue (you are Copilot in this section)

• Fixes [Feature] Ensure that changes to non-code folders don't cause automatic execution of github actions. #539

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[michaelawyu (michaelawyu)]

Hi Copilot ! Some of the pipelines are UTs/ITs/E2Es specific; we expect them to run automatically when we edit the pipeline configurations so that we could verify the validity of changes. Consider exempting them from the exclusion list.

[michaelawyu (michaelawyu)]

Hi Copilot ! Some of the pipelines are UTs/ITs/E2Es specific; we expect them to run automatically when we edit the pipeline configurations so that we could verify the validity of changes. Consider exempting them from the exclusion list.

[Copilot]

Removed .github/** from paths-ignore in ci.yml, code-lint.yml, upgrade.yml, and codeql-analysis.yml so that changes to workflow files continue to trigger those CI pipelines. The other non-code folder exclusions (.pipeline/**, screenshots/**, examples/**) remain. Non-test workflows (codespell.yml, trivy.yml) retain the .github/** exclusion since they don't need to validate pipeline changes. See commit 041f36b.

[michaelawyu (michaelawyu)]

Same here. Copilot

[michaelawyu (michaelawyu)]

Hi Copilot ! Consider changing this to the paths based pattern, make sure that:

• .github directory is ignored, but .github/workflows/ci.yml is included.
• markdown files + images files are ignored
• hack/ directory is ignored
• .pipeline directory is ignored

Learn about the syntax from here: https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax#example-including-and-excluding-paths

[Copilot]

Switched ci.yml, code-lint.yml, and upgrade.yml from paths-ignore to a paths-based filter (commit 4db07c6). The pattern:

• Starts with ** to include everything
• Excludes !.github/**, then re-includes the workflow's own file (e.g. .github/workflows/ci.yml) so CI triggers on pipeline changes
• Excludes markdown (!**.md, !**.mdx) and image files (!**.png, !**.jpg)
• Excludes !hack/**, !.pipeline/**, !screenshots/**, !examples/**