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Embed assets in elf file (#2466)

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* FBT: file_assets generator
* Elf file: process manifest section externally
* FBT, file_assets generator: add assets signature
* Storage: assets path alias
* Flipper application: assets unpacker
* Apps, Storage: use '/data' alias for apps data
* Storage: copy file to file
* Assets: log flag, fixes
* Update f18 api
* Assets: asserts
* Assets: fix signature_data check
* App assets: example
* Example assets: fix folder structure in readme
* Assets: fix error handling
* Assets builder: use ansii instead of utf-8, use .fapassets section instead of .fapfiles, add assets path to signature
* Elf file: comment strange places
* Storage: totaly optimized storage_file_copy_to_file
This commit is contained in:
Sergey Gavrilov
2023-03-09 18:01:53 +03:00
committed by GitHub
parent 50ef5deefc
commit 4fd043398a
22 changed files with 937 additions and 113 deletions
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12
applications/examples/example_apps_data/README.md
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@@ -9,10 +9,16 @@ The **Apps Data** folder is a folder used to store data for external apps that a
The path to the current application folder is related to the `appid` of the app. The `appid` is used to identify the app in the app store and is stored in the `application.fam` file.
The Apps Data folder is located only on the external storage, the SD card.
For example, if the `appid` of the app is `snake_game`, the path to the Apps Data folder will be `/ext/apps_data/snake_game`. But using raw paths is not recommended, because the path to the Apps Data folder can change in the future. Use the `/app` alias instead.
For example, if the `appid` of the app is `snake_game`, the path to the Apps Data folder will be `/ext/apps_data/snake_game`. But using raw paths is not recommended, because the path to the Apps Data folder can change in the future. Use the `/data` alias instead.
## How to get the path to the Apps Data folder?
You can use `/app` alias to get the path to the current application data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `/app/config.txt`. But this way is not recommended, because even the `/app` alias can change in the future.
You can use `/data` alias to get the path to the current application data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `/data/config.txt`. But this way is not recommended, because even the `/data` alias can change in the future.
We recommend to use the `APP_DATA_PATH` macro to get the path to the Apps Data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `APP_DATA_PATH("config.txt")`.
We recommend to use the `APP_DATA_PATH` macro to get the path to the Apps Data folder. For example, if you want to open a file `config.txt` in the Apps Data folder, you can use the next path: `APP_DATA_PATH("config.txt")`.
## What is the difference between the Apps Assets folder and the Apps Data folder?
The Apps Assets folder is used to store the data <u>provided</u> with the application. For example, if you want to create a game, you can store game levels (contant data) in the Apps Assets folder.
The Apps Data folder is used to store data <u>generated</u> by the application. For example, if you want to create a game, you can save the progress of the game (user-generated data) in the Apps Data folder.