embedfs/README.md

62 lines
1.3 KiB
Markdown
Raw Normal View History

2025-01-12 21:09:12 +03:00
## Code generator for embedding directories with files into executables
The `$embed_file` statement in V embeds only a single file. This module makes
it easy to embed entire directories into the final executable.
File embedding in V is done at compile time, and unfortunately there is no way
to dynamically embed arbitrary files into an application. The `embedfs` module
is a simple code generator that creates a separate `.v` file with the code for
embedding files. That is, the embedfs call must be made before the code is
compiled. So embedfs is a build dependency.
```
v install --git https://github.com/gechandesu/embedfs
```
## Usage
For example you have following file structure:
```
v.mod
src/
main.v
assets/
css/style.css
js/app.js
```
Lets embed the `assets` directory.
Create `embed_assets.vsh` next to your v.mod:
```v
#!/usr/bin/env -S v
import embedfs
chdir('src')!
assets := embedfs.CodeGenerator{
path: 'assets'
}
write_file('assets_generated.v', assets.generate())!
```
Run it:
```
v run embed_assets.vsh
```
Now you have `src/assets_generated.v`. Take a look inside it. So you can use
`embedfs` const in `src/main.v` in this way:
```v
module main
fn main() {
style := embedfs.files['assets/css/style.css']!
println(style.data.to_string())
}
```