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Allow custom transformations of assets (#6593)

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* Allow custom transformations of assets

This exposes one query parameter `transforms`, which is a JSON array of
shard transformation operations.

It also updates the asset presets. The UX for this still needs some work

* Rename options to arguments for presets

More explicit

* options -> arguments in setting spec

* Better errors for invalid JSON in asset presets

* Add limit to transforms query parameter

* Use flattened option for extra transforms

* Fix placeholder color of code input

* Allow "simple mode" aliases

* Add documentation

Co-authored-by: rijkvanzanten <rijkvanzanten@me.com>
This commit is contained in:
Tim
2021-07-22 07:57:47 +12:00
committed by GitHub
parent 7dffa48570
commit 2c9ff3bca6
15 changed files with 387 additions and 118 deletions
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docs/reference/environment-variables.md
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@@ -267,6 +267,7 @@ STORAGE_LOCAL_ROOT="./uploads"
| `ASSETS_CACHE_TTL` | How long assets will be cached for in the browser. Sets the `max-age` value of the `Cache-Control` header. | `30m` |
| `ASSETS_TRANSFORM_MAX_CONCURRENT` | How many file transformations can be done simultaneously | 4 |
| `ASSETS_TRANSFORM_IMAGE_MAX_DIMENSION` | The max pixel dimensions size (width/height) that is allowed to be transformed | 6000 |
| `ASSETS_TRANSFORM_MAX_OPERATIONS` | The max number of transform operations that is allowed to be processed (excludes saved presets) | 5 |
Image transformations can be fairly heavy on memory usage. If you're using a system with 1GB or less available memory,
we recommend lowering the allowed concurrent transformations to prevent you from overflowing your server.