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use std::{
borrow::Cow,
collections::{HashMap, HashSet},
fmt::Display,
hash::Hash,
ops::Index,
rc::Rc,
};
use serde::Serialize;
use crate::{
args::{self, arg, TaskArgs},
task::*,
types::TaskID,
};
#[derive(Clone, Debug, Serialize, PartialEq, Eq, Hash)]
pub struct TaskRef<'ctx> {
pub id: &'ctx TaskID,
pub args: TaskArgs,
}
impl<'ctx> Display for TaskRef<'ctx> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.id.fmt(f)
}
}
#[derive(Clone, Debug, Serialize, PartialEq, Eq, Hash)]
pub struct OutputRef<'ctx> {
pub task: TaskRef<'ctx>,
pub output: &'ctx str,
}
const BUILD_PLATFORM: args::Platform = args::Platform {
gnu_triplet: "x86_64-linux-gnu",
karch: "x86",
prefix: "/opt/toolchain",
};
const HOST_PLATFORM: args::Platform = args::Platform {
gnu_triplet: "aarch64-linux-gnu",
karch: "arm64",
prefix: "/usr",
};
#[derive(Debug)]
pub struct Context {
tasks: HashMap<TaskID, TaskDef>,
default_args: HashMap<String, Rc<serde_json::Value>>,
}
impl Context {
pub fn new(tasks: HashMap<TaskID, TaskDef>) -> Self {
let default_args = [arg("build", BUILD_PLATFORM), arg("host", HOST_PLATFORM)]
.iter()
.cloned()
.collect();
Context {
tasks,
default_args,
}
}
pub fn get(&self, id: &TaskID) -> Option<&TaskDef> {
self.tasks.get(id)
}
fn task_ref<'a>(&'a self, id: &'a TaskID, args: Cow<'_, TaskArgs>) -> TaskRef {
TaskRef {
id,
args: args.into_owned(),
}
}
pub fn parse(&self, task: &str) -> Option<TaskRef> {
let (id, _) = self.tasks.get_key_value(task)?;
Some(self.task_ref(id, Cow::Owned(TaskArgs(self.default_args.clone()))))
}
fn inherit_ref<'a>(&'a self, dep: &'a InheritDep, args: &TaskArgs) -> TaskRef {
self.task_ref(&dep.task, Cow::Borrowed(args))
}
pub fn output_ref<'a>(&'a self, dep: &'a OutputDep, args: &TaskArgs) -> OutputRef<'a> {
OutputRef {
task: self.task_ref(&dep.task, Cow::Borrowed(args)),
output: &dep.output,
}
}
fn build_depend_args(args: &TaskArgs) -> TaskArgs {
let mut ret = args.clone();
ret.0.insert("host".to_string(), args.0["build"].clone());
// TODO: Hack for correct target of toolchain build depends (gcc -> binutils)
if !ret.0.contains_key("target") {
ret.0.insert("target".to_string(), args.0["host"].clone());
}
ret
}
pub fn get_inherit_depend(&self, task_ref: &TaskRef) -> Option<TaskRef> {
let task = &self[task_ref.id];
Some(self.inherit_ref(task.inherit.as_ref()?, &task_ref.args))
}
pub fn get_build_depends(&self, task_ref: &TaskRef) -> HashSet<OutputRef> {
let task = &self[task_ref.id];
task.build_depends
.iter()
.map(|dep| self.output_ref(dep, &Context::build_depend_args(&task_ref.args)))
.collect()
}
pub fn get_host_depends(&self, task_ref: &TaskRef) -> HashSet<OutputRef> {
let task = &self[task_ref.id];
task.depends
.iter()
.map(|dep| self.output_ref(dep, &task_ref.args))
.collect()
}
pub fn get_dependent_outputs(&self, task_ref: &TaskRef) -> HashSet<OutputRef> {
self.get_build_depends(task_ref)
.into_iter()
.chain(self.get_host_depends(task_ref).into_iter())
.collect()
}
pub fn get_dependent_tasks(&self, task_ref: &TaskRef) -> HashSet<TaskRef> {
self.get_inherit_depend(task_ref)
.into_iter()
.chain(
self.get_dependent_outputs(task_ref)
.into_iter()
.map(|dep| dep.task),
)
.collect()
}
}
impl Index<&TaskID> for Context {
type Output = TaskDef;
fn index(&self, index: &TaskID) -> &TaskDef {
self.tasks.get(index).expect("Invalid TaskID")
}
}
|
