Phil Skentelbery
00f21d2a51
Document completed Phase 4 implementation with test results, verification output, and backwards compatibility notes. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
241 lines
6.6 KiB
Markdown
241 lines
6.6 KiB
Markdown
# v1.4.0 Phase 4 Implementation Report
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**Date**: 2025-12-16
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**Phase**: Phase 4 - Enhanced Feed Media
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**Status**: ✅ Complete
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**Developer**: Claude Code Agent
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---
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## Implementation Summary
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Phase 4 enhances all three feed formats (RSS, JSON Feed, ATOM) to expose media variants and metadata to feed readers.
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### Changes Made
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#### 1. RSS Feed (`starpunk/feeds/rss.py`)
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**Enhanced streaming RSS generation** with full Media RSS specification support:
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- Wrap size variants in `<media:group>` elements
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- Add `<media:content>` for large/medium/small variants with attributes:
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- `url`: Variant image URL
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- `type`: MIME type
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- `medium`: "image"
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- `isDefault`: "true" for largest available variant
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- `width`: Image width in pixels
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- `height`: Image height in pixels
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- `fileSize`: File size in bytes
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- Add `<media:thumbnail>` for thumb variant with dimensions
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- Add `<media:title type="plain">` for captions
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- Implement isDefault fallback logic: large → medium → small
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- Maintain backwards compatibility for media without variants (legacy fallback)
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**Example output** (with variants):
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```xml
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<media:group>
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<media:content url="https://example.com/media/2025/12/uuid_medium.jpg"
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type="image/jpeg"
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medium="image"
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isDefault="true"
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width="640"
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height="480"
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fileSize="2088"/>
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<media:content url="https://example.com/media/2025/12/uuid_small.jpg"
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type="image/jpeg"
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medium="image"
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isDefault="false"
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width="320"
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height="240"
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fileSize="738"/>
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</media:group>
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<media:thumbnail url="https://example.com/media/2025/12/uuid_thumb.jpg"
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width="150"
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height="150"/>
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<media:title type="plain">Caption text</media:title>
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```
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#### 2. JSON Feed (`starpunk/feeds/json_feed.py`)
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**Enhanced `_starpunk` extension** with media variant information:
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- Add `about` URL (configurable via `STARPUNK_ABOUT_URL` config)
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- Default: `https://github.com/yourusername/starpunk`
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- Add `media_variants` array when variants exist
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- Each variant entry includes:
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- `url`: Variant image URL
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- `width`: Image width
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- `height`: Image height
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- `size_in_bytes`: File size
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- `mime_type`: MIME type
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**Example output**:
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```json
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{
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"_starpunk": {
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"permalink_path": "/note/test",
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"word_count": 42,
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"about": "https://github.com/yourusername/starpunk",
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"media_variants": [
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{
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"caption": "Test caption",
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"variants": {
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"thumb": {
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"url": "https://example.com/media/2025/12/uuid_thumb.jpg",
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"width": 150,
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"height": 150,
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"size_in_bytes": 3000
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},
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"small": { ... },
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"medium": { ... },
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"original": { ... }
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}
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}
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]
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}
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}
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```
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#### 3. ATOM Feed (`starpunk/feeds/atom.py`)
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**Enhanced enclosure links** with caption support:
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- Add `title` attribute to enclosure links for captions
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- Keep simple (no variants in ATOM per design decision)
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**Example output**:
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```xml
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<link rel="enclosure"
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type="image/jpeg"
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href="https://example.com/media/2025/12/uuid.jpg"
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length="3138"
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title="Caption text"/>
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```
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#### 4. Test Updates (`tests/test_feeds_rss.py`)
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**Updated streaming media test** to match v1.4.0 behavior:
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- Changed `item.find("media:content")` to `item.find(".//media:content")`
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- Now searches descendants (inside `media:group`) instead of direct children
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- Updated docstring to reflect v1.4.0 variant support
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---
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## Testing
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### Test Results
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All 44 feed tests pass:
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```
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tests/test_feeds_rss.py ............. (13 tests)
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tests/test_feeds_json.py ............ (13 tests)
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tests/test_feeds_atom.py ............ (11 tests)
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tests/test_feeds_rss.py ......... (7 integration tests)
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```
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### Manual Verification
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Verified Phase 4 features with live test:
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1. **RSS Feed**: ✅
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- Has `media:group` wrapper
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- Has 2 `media:content` elements (medium, small)
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- All attributes present (url, type, medium, isDefault, width, height, fileSize)
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- Has `media:thumbnail` with width/height
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- Has `media:title` with type="plain"
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2. **JSON Feed**: ✅
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- Has `_starpunk` extension
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- Has `about` URL
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- Has `media_variants` array
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- All variant types present (thumb, small, medium, original)
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- All fields present (url, width, height, size_in_bytes)
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3. **ATOM Feed**: ✅
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- Enclosures have `title` attribute
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- Caption text preserved
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---
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## Backwards Compatibility
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Phase 4 maintains full backwards compatibility:
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1. **Media without variants** (pre-v1.4.0 uploads):
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- RSS generates legacy `<media:content>` directly under `<item>`
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- JSON Feed omits `media_variants` key
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- ATOM behaves as before
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2. **Feed readers**:
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- Readers that don't understand Media RSS simply ignore the namespace
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- Readers that don't understand `_starpunk` extension ignore it
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- All feeds still include standard elements (enclosure, attachments)
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---
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## Configuration
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New configuration option added:
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```python
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# config.py or environment
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STARPUNK_ABOUT_URL = "https://github.com/yourusername/starpunk"
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```
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Default value: `https://github.com/yourusername/starpunk`
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This URL documents the `_starpunk` JSON Feed extension for consumers.
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---
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## Design Document Compliance
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✅ All Phase 4 requirements from design document implemented:
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- [x] RSS: Use `<media:group>` for variants
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- [x] RSS: Add `<media:content>` with all attributes
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- [x] RSS: Add `<media:thumbnail>` for thumb variant
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- [x] RSS: Add `<media:title>` for captions
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- [x] RSS: Handle isDefault correctly (largest available)
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- [x] RSS: Backwards compatibility for legacy media
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- [x] JSON Feed: Add `_starpunk.about` URL
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- [x] JSON Feed: Add `_starpunk.media_variants` array
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- [x] ATOM: Add `title` attribute to enclosures
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- [x] Ensure variants loaded in feeds (via `get_note_media()`)
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---
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## Files Modified
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1. `/home/phil/Projects/starpunk/starpunk/feeds/rss.py` - RSS enhancements
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2. `/home/phil/Projects/starpunk/starpunk/feeds/json_feed.py` - JSON Feed enhancements
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3. `/home/phil/Projects/starpunk/starpunk/feeds/atom.py` - ATOM enhancements
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4. `/home/phil/Projects/starpunk/tests/test_feeds_rss.py` - Test update for v1.4.0
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---
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## Next Steps
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Phase 4 is complete. The next phase (Phase 5) is Testing & Documentation.
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Per design document, Phase 5 includes:
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- Unit tests for Phase 4 features (existing tests pass)
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- Update CHANGELOG.md
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- Update architecture docs
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- Version bump to 1.4.0
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---
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## Questions for Architect
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None. Phase 4 implementation follows design document exactly.
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---
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## Generated with
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🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-Authored-By: Claude <noreply@anthropic.com>
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