Files
rojo/server/src/commands/build.rs
2019-08-27 15:00:37 -07:00

141 lines
4.2 KiB
Rust

use std::{
collections::HashMap,
fs::File,
io::{self, Write, BufWriter},
path::PathBuf,
};
use rbx_dom_weak::{RbxTree, RbxInstanceProperties};
use failure::Fail;
use crate::{
imfs::new::{Imfs, RealFetcher, WatchMode, FsError},
snapshot::{apply_patch_set, compute_patch_set},
snapshot_middleware::snapshot_from_imfs,
};
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum OutputKind {
Rbxmx,
Rbxlx,
Rbxm,
Rbxl,
}
fn detect_output_kind(options: &BuildOptions) -> Option<OutputKind> {
let extension = options.output_file.extension()?.to_str()?;
match extension {
"rbxlx" => Some(OutputKind::Rbxlx),
"rbxmx" => Some(OutputKind::Rbxmx),
"rbxl" => Some(OutputKind::Rbxl),
"rbxm" => Some(OutputKind::Rbxm),
_ => None,
}
}
#[derive(Debug)]
pub struct BuildOptions {
pub fuzzy_project_path: PathBuf,
pub output_file: PathBuf,
pub output_kind: Option<OutputKind>,
}
#[derive(Debug, Fail)]
pub enum BuildError {
#[fail(display = "Could not detect what kind of file to create")]
UnknownOutputKind,
#[fail(display = "IO error: {}", _0)]
IoError(#[fail(cause)] io::Error),
#[fail(display = "XML model file error")]
XmlModelEncodeError(rbx_xml::EncodeError),
#[fail(display = "Binary model file error")]
BinaryModelEncodeError(rbx_binary::EncodeError),
#[fail(display = "{}", _0)]
FsError(#[fail(cause)] FsError),
}
impl_from!(BuildError {
io::Error => IoError,
rbx_xml::EncodeError => XmlModelEncodeError,
rbx_binary::EncodeError => BinaryModelEncodeError,
FsError => FsError,
});
fn xml_encode_config() -> rbx_xml::EncodeOptions {
rbx_xml::EncodeOptions::new()
.property_behavior(rbx_xml::EncodePropertyBehavior::WriteUnknown)
}
pub fn build(options: &BuildOptions) -> Result<(), BuildError> {
let output_kind = options.output_kind
.or_else(|| detect_output_kind(options))
.ok_or(BuildError::UnknownOutputKind)?;
log::info!("Hoping to generate file of type {:?}", output_kind);
let mut tree = RbxTree::new(RbxInstanceProperties {
name: "ROOT".to_owned(),
class_name: "Folder".to_owned(),
properties: HashMap::new(),
});
let root_id = tree.get_root_id();
log::trace!("Constructing in-memory filesystem");
let mut imfs = Imfs::new(RealFetcher::new(WatchMode::Disabled));
log::trace!("Reading project root");
let entry = imfs.get(&options.fuzzy_project_path)
.expect("could not get project path");
log::trace!("Generating snapshot of instances from IMFS");
let snapshot = snapshot_from_imfs(&mut imfs, &entry)
.expect("snapshot failed")
.expect("snapshot did not return an instance");
log::trace!("Computing patch set");
let patch_set = compute_patch_set(&snapshot, &tree, root_id);
log::trace!("Applying patch set");
apply_patch_set(&mut tree, &patch_set);
log::trace!("Opening output file for write");
let mut file = BufWriter::new(File::create(&options.output_file)?);
match output_kind {
OutputKind::Rbxmx => {
// Model files include the root instance of the tree and all its
// descendants.
rbx_xml::to_writer(&mut file, &tree, &[root_id], xml_encode_config())?;
},
OutputKind::Rbxlx => {
// Place files don't contain an entry for the DataModel, but our
// RbxTree representation does.
let top_level_ids = tree.get_instance(root_id).unwrap().get_children_ids();
rbx_xml::to_writer(&mut file, &tree, top_level_ids, xml_encode_config())?;
},
OutputKind::Rbxm => {
rbx_binary::encode(&tree, &[root_id], &mut file)?;
},
OutputKind::Rbxl => {
log::warn!("Support for building binary places (rbxl) is still experimental.");
log::warn!("Using the XML place format (rbxlx) is recommended instead.");
log::warn!("For more info, see https://github.com/LPGhatguy/rojo/issues/180");
let top_level_ids = tree.get_instance(root_id).unwrap().get_children_ids();
rbx_binary::encode(&tree, top_level_ids, &mut file)?;
},
}
file.flush()?;
log::trace!("Done!");
Ok(())
}