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Documentation improvement for get-changed-files action #26531

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Documentation improvement for get-changed-files action #26531

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a3a7d8b
Initial plan
Copilot Nov 25, 2025
8927b55
Apply review comments from PR #26529
Copilot Nov 25, 2025
35c6775
Revert case-sensitive filter change and add clarifying comment
Copilot Nov 25, 2025
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7 changes: 5 additions & 2 deletions .github/actions/infrastructure/get-changed-files/README.md
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Expand Up @@ -8,13 +8,16 @@ A reusable composite action that retrieves the list of files changed in a pull r
- Optional filtering by file pattern
- Returns files as JSON array for easy consumption
- Filters out deleted files (only returns added, modified, or renamed files)
- Handles up to 100 changed files per request
- Handles all changed files (no limit)

## Usage

### Basic Usage (Pull Requests Only)

```yaml
- name: Checkout repository
uses: actions/checkout@v4

- name: Get changed files
id: changed-files
uses: "./.github/actions/infrastructure/get-changed-files"
Expand Down Expand Up @@ -102,7 +105,7 @@ The action supports simple filter patterns:

## Limitations

- Simple filter patterns only (no complex glob or regex patterns)
- Supports simple filter patterns: extension matching (`*.ext`) and path prefix matching. Complex glob or regex patterns are not supported.

## Pagination

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1 change: 1 addition & 0 deletions .github/actions/infrastructure/get-changed-files/action.yml
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Expand Up @@ -78,6 +78,7 @@ runs:
}

// Apply filter if provided
// Note: Filter matching is intentionally case-insensitive for cross-platform consistency
if (filter) {
const filterLower = filter.toLowerCase();
const beforeFilter = changedFiles.length;
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