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use std::{collections::HashMap, ffi::OsStr, fs::File, path::Path, result};
use scoped_tls_hkt::scoped_thread_local;
use serde::{Deserialize, Deserializer};
use walkdir::WalkDir;
use common::{error::*, types::*};
use crate::task::{RecipeMeta, TaskDef, TaskMeta};
scoped_thread_local!(static CURRENT_RECIPE: str);
fn current_recipe() -> String {
CURRENT_RECIPE.with(|current| current.to_string())
}
pub fn deserialize_task_id<'de, D>(deserializer: D) -> result::Result<TaskID, D::Error>
where
D: Deserializer<'de>,
{
#[derive(Deserialize)]
struct RecipeTaskID {
recipe: Option<String>,
task: String,
}
let RecipeTaskID { recipe, task } = RecipeTaskID::deserialize(deserializer)?;
Ok(TaskID {
recipe: recipe.unwrap_or_else(current_recipe),
task,
})
}
#[derive(Debug, Deserialize)]
struct Recipe {
#[serde(default)]
pub meta: RecipeMeta,
pub tasks: HashMap<String, TaskDef>,
}
fn read_recipe(path: &Path) -> Result<Recipe> {
let f = File::open(path).context("IO error")?;
let recipe: Recipe = serde_yaml::from_reader(f)
.map_err(Error::new)
.context("YAML error")?;
Ok(recipe)
}
const RECIPE_NAME: &str = "build";
const RECIPE_PREFIX: &str = "build.";
fn recipe_name(path: &Path) -> Option<&str> {
if path.extension() != Some("yml".as_ref()) {
return None;
}
let stem = path.file_stem()?.to_str()?;
if stem == RECIPE_NAME {
return Some("");
}
stem.strip_prefix(RECIPE_PREFIX)
}
pub fn read_recipes<P: AsRef<Path>>(path: P) -> Result<HashMap<TaskID, Vec<TaskDef>>> {
let mut tasks = HashMap::<TaskID, Vec<TaskDef>>::new();
for entry in WalkDir::new(path)
.sort_by_file_name()
.into_iter()
.filter_map(|e| e.ok())
{
let path = entry.path();
if !path.is_file() {
continue;
}
let Some(recipename) = recipe_name(path) else {
continue;
};
let Some(basename) = path
.parent()
.and_then(Path::file_name)
.and_then(OsStr::to_str)
else {
continue;
};
let recipename_full = if recipename.is_empty() {
basename.to_string()
} else {
format!("{basename}/{recipename}")
};
let recipe = CURRENT_RECIPE.set(&recipename_full, || read_recipe(path))?;
for (label, mut task) in recipe.tasks {
let task_id = TaskID {
recipe: recipename_full.clone(),
task: label,
};
task.meta = TaskMeta {
basename: basename.to_string(),
recipename: recipename.to_string(),
recipe: recipename_full.clone(),
version: recipe.meta.version.clone(),
};
tasks.entry(task_id).or_default().push(task);
}
}
Ok(tasks)
}
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