Files
rojo/src/snapshot_middleware/toml.rs

154 lines
3.9 KiB
Rust

use std::path::Path;
use anyhow::Context;
use memofs::Vfs;
use rbx_dom_weak::ustr;
use crate::{
lua_ast::{Expression, Statement},
snapshot::{InstanceContext, InstanceMetadata, InstanceSnapshot},
};
use super::meta_file::AdjacentMetadata;
pub fn snapshot_toml(
context: &InstanceContext,
vfs: &Vfs,
path: &Path,
name: &str,
) -> anyhow::Result<Option<InstanceSnapshot>> {
let contents = vfs.read(path)?;
let value: toml::Value = toml::from_slice(&contents)
.with_context(|| format!("File contains malformed TOML: {}", path.display()))?;
let as_lua = toml_to_lua(value).to_string();
let mut snapshot = InstanceSnapshot::new()
.name(name)
.class_name("ModuleScript")
.property(ustr("Source"), as_lua)
.metadata(
InstanceMetadata::new()
.instigating_source(path)
.relevant_paths(vec![vfs.canonicalize(path)?])
.context(context),
);
AdjacentMetadata::read_and_apply_all(vfs, path, name, &mut snapshot)?;
Ok(Some(snapshot))
}
fn toml_to_lua(value: toml::Value) -> Statement {
Statement::Return(toml_to_lua_value(value))
}
fn toml_to_lua_value(value: toml::Value) -> Expression {
use toml::Value;
match value {
Value::Datetime(value) => Expression::String(value.to_string()),
Value::Boolean(value) => Expression::Bool(value),
Value::Float(value) => Expression::Number(value),
Value::Integer(value) => Expression::Number(value as f64),
Value::String(value) => Expression::String(value),
Value::Array(values) => {
Expression::Array(values.into_iter().map(toml_to_lua_value).collect())
}
Value::Table(values) => Expression::table(
values
.into_iter()
.map(|(key, value)| (key.into(), toml_to_lua_value(value)))
.collect(),
),
}
}
#[cfg(test)]
mod test {
use super::*;
use memofs::{InMemoryFs, VfsSnapshot};
#[test]
fn instance_from_vfs() {
let mut imfs = InMemoryFs::new();
imfs.load_snapshot(
"/foo.toml",
VfsSnapshot::file(
r#"
array = [1, 2, 3]
true = true
false = false
int = 1234
float = 1234.5452
"1invalidident" = "nice"
[object]
hello = "world"
[dates]
offset1 = 1979-05-27T00:32:00.999999-07:00
offset2 = 1979-05-27 07:32:00Z
localdatetime = 1979-05-27T07:32:00
localdate = 1979-05-27
localtime = 00:32:00.999999
"#,
),
)
.unwrap();
let vfs = Vfs::new(imfs.clone());
let instance_snapshot = snapshot_toml(
&InstanceContext::default(),
&vfs,
Path::new("/foo.toml"),
"foo",
)
.unwrap()
.unwrap();
insta::assert_yaml_snapshot!(instance_snapshot);
}
#[test]
fn with_metadata() {
let mut imfs = InMemoryFs::new();
imfs.load_snapshot(
"foo.toml",
VfsSnapshot::file(
r#"
array = [1, 2, 3]
int = 123
bool = false
"#,
),
)
.unwrap();
imfs.load_snapshot(
"foo.meta.json",
VfsSnapshot::file(
r#"{
"id": "manually specified"
}"#,
),
)
.unwrap();
let vfs = Vfs::new(imfs.clone());
let instance_snapshot = snapshot_toml(
&InstanceContext::default(),
&vfs,
Path::new("foo.toml"),
"foo",
)
.unwrap()
.unwrap();
insta::assert_yaml_snapshot!(instance_snapshot);
}
}