Add STDIN support to wp media import

[Copilot]

Plan: Add STDIN support to wp media import

• Understand current implementation
• Implement STDIN support
• Add tests
• Validate implementation
• Address test failures
  • Fix file type detection using mime_content_type()
  • Add check for empty STDIN content
  • Map MIME types to proper file extensions
  • Fix test to use --field=post_name instead of --field=name
  • Fix title generation for STDIN imports to use filename instead of '-'
  • Fix double extension issue when user provides extension in --file_name
  • Stream STDIN directly to temp file to avoid memory issues
  • Update test expectations after fixing double extension bug

Latest Fix

Updated test expectations to match the corrected behavior after fixing the double extension bug.

Before the double extension fix:

• Filename: my-image.png.png (buggy)
• Title: my-image.png (extension stripped from filename)
• post_name: my-image-png (WordPress sanitizes dots to hyphens)

After the double extension fix:

• Filename: my-image.png (correct)
• Title: my-image (extension stripped from filename)
• post_name: my-image (no dots to sanitize)

The test was written to match the buggy behavior, so it needed to be updated to expect the correct post_name of my-image instead of my-image-png.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>wp media import to be able to import from STDIN</issue_title>
<issue_description>For example:

$ curl http://example.com/large-file.png | wp media import -

Related:
wp-cli/entity-command#96</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes wp media import to be able to import from STDIN #50

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[codecov]

Codecov Report

❌ Patch coverage is 84.84848% with 10 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/Media_Command.php	84.84%	10 Missing ⚠️

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