Replaces Smush Pro's optimisation pipeline without the grey-wash bug. CLI commands working: wp h4b-img status wp h4b-img optimise --id=<n> wp h4b-img bulk wp h4b-img rescue Verified on dev.rds.ink: - ICC profile preservation works (the Smush-bug fix) - Bulk: 20 attachments → 487 KB saved (10.4%), 0 errors - Rescue: end-to-end mechanism verified on WorkingAsOne_horse fixture - WebP synchronous, AVIF queued via WP-Cron - Originals backed up to wp-content/h4b-img-originals/ See CHANGELOG.md for details + ../DESIGN-h4b-image-optim.md for architecture. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
62 lines
2.9 KiB
Markdown
62 lines
2.9 KiB
Markdown
# CHANGELOG
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All notable changes to **h4b-image-optim** will be documented here.
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Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) and
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[Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.1.0] — 2026-05-19
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Initial MVP. Replaces Smush Pro's optimisation pipeline without the
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grey-wash bug. CLI-only in this release (admin UI comes in 0.2).
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### Added
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- **Plugin scaffold** with PSR-12-style namespaced classes (`H4B\ImageOptim\*`)
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- **`Optimizer`** — in-place JPG / PNG re-encode using Imagick + jpegoptim / pngquant
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- **ICC profile preservation** (the Smush-bug fix) via bundled sRGB v4 profile fallback
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- 4:4:4 chroma subsampling for large images; 4:2:0 for small ones
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- Configurable size threshold (`min_optimise_bytes`, default 20 KB) to skip
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thumbnails that re-encoding would inflate
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- Atomic file replacement with ownership preservation
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- GPS EXIF stripping on by default for privacy
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- EXIF orientation applied before encode
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- **`Format_Generator`** — WebP (synchronous) + AVIF (queued via WP-Cron) siblings
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- **`Uploader_Hook`** — intercepts `wp_generate_attachment_metadata`
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- **`Attachment_Meta`** — per-attachment optimisation history in `_h4b_img_optim`
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- **`Rescue_Detector`** — PHP port of the Python grey-wash detector
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- **Originals backup** to `wp-content/h4b-img-originals/` with 90-day cron prune
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- **WP-CLI commands**:
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- `wp h4b-img status` — tool detection + settings dump
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- `wp h4b-img optimise --id=<n>` — single-attachment optimise (+ `--dry-run`)
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- `wp h4b-img bulk` — bulk-optimise unprocessed attachments (+ `--limit`,
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`--force`, `--dry-run`, `--batch`, `--pause`)
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- `wp h4b-img rescue` — scan + optionally repair Smush-mangled JPGs from
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their `.webp` siblings (+ `--scan`, `--apply`, `--min-severity`, `--csv`,
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`--manifest`)
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- **`uninstall.php`** — clean removal of plugin options + cron, preserves
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user data (backups + .webp/.avif siblings + optimisation postmeta)
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### Required system tools (AlmaLinux 9 / Debian 13)
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| Tool | AlmaLinux | Debian |
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| `cwebp` | `libwebp-tools` | `webp` |
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| `jpegoptim` | `jpegoptim` | `jpegoptim` |
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| `cjpeg` / `jpegtran` | `libjpeg-turbo-utils` | `libjpeg-turbo-progs` |
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| `avifenc` | `libavif-tools` | `libavif-bin` |
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| `pngquant` | `pngquant` | `pngquant` |
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| `optipng` | `optipng` | `optipng` |
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### Known limitations
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- No admin settings page (CLI/`wp option` only)
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- No Picture-tag rewriting on `the_content` (Smush still serving WebPs)
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- No `.htaccess` content-negotiation fallback
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- No `migrate-from-smush` command yet
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- No PHPUnit test suite yet
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### Verified against
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- AlmaLinux 9.7 / PHP 8.4.21 / Imagick 3.8.1 (production)
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- Debian 13 / PHP 8.4 / wordpress:php8.4-apache (dev container)
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- Tested on 20 rds.ink attachments in bulk mode: 487 KB saved (10.4%), 0 errors
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- Rescue mechanic verified end-to-end on the WorkingAsOne_horse900-800x524.jpg fixture
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