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use std::path::PathBuf;
use just_template::{Template, tmpl};
use crate::constants::{
OVERRIDE_RENDERER_DISPATCHER, OVERRIDE_RENDERER_DISPATCHER_TEMPLATE, REGISTRY_TOML,
};
/// Generate renderer list file from Registry.toml configuration using just_template
pub async fn generate_renderers_file(repo_root: &PathBuf) {
let template_path = repo_root.join(OVERRIDE_RENDERER_DISPATCHER_TEMPLATE);
let output_path = repo_root.join(OVERRIDE_RENDERER_DISPATCHER);
let config_path = repo_root.join(REGISTRY_TOML);
// Read the template
let template_content = tokio::fs::read_to_string(&template_path).await.unwrap();
// Read and parse the TOML configuration
let config_content = tokio::fs::read_to_string(&config_path).await.unwrap();
let config: toml::Value = toml::from_str(&config_content).unwrap();
// Collect all renderer configurations
let mut renderers = Vec::new();
let Some(table) = config.as_table() else {
return;
};
let Some(renderer_table) = table.get("renderer") else {
return;
};
let Some(renderer_table) = renderer_table.as_table() else {
return;
};
for (_, renderer_value) in renderer_table {
let Some(renderer_config) = renderer_value.as_table() else {
continue;
};
let Some(name) = renderer_config.get("name").and_then(|v| v.as_str()) else {
continue;
};
let Some(renderer_type) = renderer_config.get("type").and_then(|v| v.as_str()) else {
continue;
};
renderers.push((name.to_string(), renderer_type.to_string()));
}
// Create template
let mut template = Template::from(template_content);
for (name, renderer_type) in &renderers {
tmpl!(template += {
renderer_match_arms {
(name = name, renderer_type = renderer_type)
}
});
}
let final_content = template.expand().unwrap();
// Write the generated code
tokio::fs::write(output_path, final_content).await.unwrap();
println!(
"Generated renderer list file with {} renderers using just_template",
renderers.len()
);
}
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