552 lines
20 KiB
Rust
552 lines
20 KiB
Rust
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use std::path::PathBuf;
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use futures::{StreamExt, TryStreamExt};
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use tokio::io::AsyncReadExt;
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use crate::common::{sanitize,Style,PropertiesOverride};
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//holy smokes what am I doing lmao
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//This giant machine is supposed to search for files according to style rules
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//e.g. ScriptName.server.lua or init.lua
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//Obviously I got carried away
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//I could use an enum!
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//I could use a struct!
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//I could use a trait!
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//I could use an error!
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//I could use a match!
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//I could use a function!
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//eventually:
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#[derive(Debug)]
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#[allow(dead_code)]//idk why this thinks it's dead code, the errors are printed out in various places
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pub enum QueryResolveError{
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NotFound,//0 results
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Ambiguous,//>1 results
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JoinError(tokio::task::JoinError),
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IO(std::io::Error),
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}
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impl std::fmt::Display for QueryResolveError{
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fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
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write!(f,"{self:?}")
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}
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}
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impl std::error::Error for QueryResolveError{}
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struct FileWithName{
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file:tokio::fs::File,
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name:String,
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}
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async fn get_file_async(mut path:PathBuf,file_name:impl AsRef<std::path::Path>)->Result<FileWithName,QueryResolveError>{
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let name=file_name.as_ref().to_str().unwrap().to_owned();
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path.push(file_name);
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match tokio::fs::File::open(path).await{
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Ok(file)=>Ok(FileWithName{file,name}),
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Err(e)=>match e.kind(){
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std::io::ErrorKind::NotFound=>Err(QueryResolveError::NotFound),
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_=>Err(QueryResolveError::IO(e)),
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},
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}
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}
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type QueryHintResult=Result<FileHint,QueryResolveError>;
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trait Query{
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async fn resolve(self)->QueryHintResult;
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}
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type QueryHandle=tokio::task::JoinHandle<Result<FileWithName,QueryResolveError>>;
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struct QuerySingle{
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script:QueryHandle,
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}
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impl QuerySingle{
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fn rox(search_path:&PathBuf,search_name:&str)->Self{
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Self{
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script:tokio::spawn(get_file_async(search_path.clone(),format!("{}.lua",search_name)))
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}
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}
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}
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impl Query for QuerySingle{
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async fn resolve(self)->QueryHintResult{
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match self.script.await{
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Ok(Ok(file))=>Ok(FileHint{file,hint:ScriptHint::ModuleScript}),
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Ok(Err(e))=>Err(e),
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Err(e)=>Err(QueryResolveError::JoinError(e)),
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}
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}
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}
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struct QueryTriple{
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module:QueryHandle,
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server:QueryHandle,
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client:QueryHandle,
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}
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impl QueryTriple{
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fn rox_rojo(search_path:&PathBuf,search_name:&str,search_module:bool)->Self{
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//this should be implemented as constructors of Triplet and Quadruplet to fully support Trey's suggestion
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let module_name=if search_module{
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format!("{}.module.lua",search_name)
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}else{
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format!("{}.lua",search_name)
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};
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Self{
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module:tokio::spawn(get_file_async(search_path.clone(),module_name)),
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server:tokio::spawn(get_file_async(search_path.clone(),format!("{}.server.lua",search_name))),
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client:tokio::spawn(get_file_async(search_path.clone(),format!("{}.client.lua",search_name))),
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}
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}
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fn rojo(search_path:&PathBuf)->Self{
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QueryTriple::rox_rojo(search_path,"init",false)
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}
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}
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//these functions can be achieved with macros, but I have not learned that yet
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fn mega_triple_join(query_triplet:(QueryHintResult,QueryHintResult,QueryHintResult))->QueryHintResult{
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match query_triplet{
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//unambiguously locate file
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(Ok(f),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Ok(f),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Ok(f))=>Ok(f),
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//multiple files located
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(Ok(_),Ok(_),Err(QueryResolveError::NotFound))
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|(Ok(_),Err(QueryResolveError::NotFound),Ok(_))
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|(Err(QueryResolveError::NotFound),Ok(_),Ok(_))
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|(Ok(_),Ok(_),Ok(_))=>Err(QueryResolveError::Ambiguous),
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//no files located
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(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))=>Err(QueryResolveError::NotFound),
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//other error
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(Err(e),_,_)
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|(_,Err(e),_)
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|(_,_,Err(e))=>Err(e),
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}
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}
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//LETS GOOOOOOOOOOOOOOOO
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fn mega_quadruple_join(query_quad:(QueryHintResult,QueryHintResult,QueryHintResult,QueryHintResult))->QueryHintResult{
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match query_quad{
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//unambiguously locate file
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(Ok(f),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Ok(f),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Ok(f),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Ok(f))=>Ok(f),
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//multiple files located
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(Ok(_),Ok(_),Ok(_),Err(QueryResolveError::NotFound))
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|(Ok(_),Ok(_),Err(QueryResolveError::NotFound),Ok(_))
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|(Ok(_),Ok(_),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))
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|(Ok(_),Err(QueryResolveError::NotFound),Ok(_),Ok(_))
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|(Ok(_),Err(QueryResolveError::NotFound),Ok(_),Err(QueryResolveError::NotFound))
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|(Ok(_),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Ok(_))
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|(Err(QueryResolveError::NotFound),Ok(_),Ok(_),Ok(_))
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|(Err(QueryResolveError::NotFound),Ok(_),Ok(_),Err(QueryResolveError::NotFound))
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|(Err(QueryResolveError::NotFound),Ok(_),Err(QueryResolveError::NotFound),Ok(_))
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|(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Ok(_),Ok(_))
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|(Ok(_),Ok(_),Ok(_),Ok(_))=>Err(QueryResolveError::Ambiguous),
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//no files located
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(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))=>Err(QueryResolveError::NotFound),
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//other error
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(Err(e),_,_,_)
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|(_,Err(e),_,_)
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|(_,_,Err(e),_)
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|(_,_,_,Err(e))=>Err(e),
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}
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}
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impl Query for QueryTriple{
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async fn resolve(self)->QueryHintResult{
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let (module,server,client)=tokio::join!(self.module,self.server,self.client);
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mega_triple_join((
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module.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::ModuleScript}),
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server.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::Script}),
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client.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::LocalScript}),
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))
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}
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}
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struct QueryQuad{
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module_implicit:QueryHandle,
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module_explicit:QueryHandle,
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server:QueryHandle,
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client:QueryHandle,
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}
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impl QueryQuad{
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fn rox_rojo(search_path:&PathBuf,search_name:&str)->Self{
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let fill=QueryTriple::rox_rojo(search_path,search_name,true);
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Self{
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module_implicit:QuerySingle::rox(search_path,search_name).script,//Script.lua
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module_explicit:fill.module,//Script.module.lua
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server:fill.server,
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client:fill.client,
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}
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}
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}
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impl Query for QueryQuad{
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async fn resolve(self)->QueryHintResult{
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let (module_implicit,module_explicit,server,client)=tokio::join!(self.module_implicit,self.module_explicit,self.server,self.client);
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mega_quadruple_join((
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module_implicit.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::ModuleScript}),
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module_explicit.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::ModuleScript}),
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server.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::Script}),
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client.map_err(|e|QueryResolveError::JoinError(e))?.map(|file|FileHint{file,hint:ScriptHint::LocalScript}),
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))
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}
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}
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struct ScriptWithOverrides{
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overrides:PropertiesOverride,
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source:String,
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}
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#[derive(Debug)]
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pub enum ScriptWithOverridesError{
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UnimplementedProperty(String),
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}
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impl std::fmt::Display for ScriptWithOverridesError{
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fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
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write!(f,"{self:?}")
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}
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}
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impl std::error::Error for ScriptWithOverridesError{}
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impl ScriptWithOverrides{
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fn from_source(mut source:String)->Result<Self,ScriptWithOverridesError>{
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let mut overrides=PropertiesOverride::default();
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let mut count=0;
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for line in source.lines(){
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//only string type properties are supported atm
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if let Some(captures)=lazy_regex::regex!(r#"^\-\-\!\s*Properties\.([A-z]\w*)\s*\=\s*"(\w+)"$"#)
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.captures(line){
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count+=line.len();
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match &captures[1]{
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"Name"=>overrides.name=Some(captures[2].to_owned()),
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"ClassName"=>overrides.class=Some(captures[2].to_owned()),
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other=>Err(ScriptWithOverridesError::UnimplementedProperty(other.to_owned()))?,
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}
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}else{
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break;
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}
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}
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Ok(ScriptWithOverrides{overrides,source:source.split_off(count)})
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}
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}
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enum CompileClass{
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Folder,
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Script(String),
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LocalScript(String),
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ModuleScript(String),
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Model(Vec<u8>),
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}
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struct CompileNode{
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name:String,
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blacklist:Option<String>,
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class:CompileClass,
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}
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#[derive(Debug)]
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pub enum CompileNodeError{
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IO(std::io::Error),
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ScriptWithOverrides(ScriptWithOverridesError),
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InvalidClassOrHint{
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class:Option<String>,
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hint:ScriptHint
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},
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QueryResolveError(QueryResolveError),
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/// Conversion from OsString to String failed
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FileName(std::ffi::OsString),
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ExtensionNotSupportedInStyle{
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extension:String,
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style:Option<Style>,
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},
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NoExtension,
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}
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impl std::fmt::Display for CompileNodeError{
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fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
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write!(f,"{self:?}")
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}
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}
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impl std::error::Error for CompileNodeError{}
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enum FileDiscernment{
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Model,
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Script(ScriptHint),
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}
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impl CompileNode{
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async fn script(search_name:&str,mut file:FileWithName,hint:ScriptHint)->Result<Self,CompileNodeError>{
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//read entire file
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let mut buf=String::new();
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file.file.read_to_string(&mut buf).await.map_err(CompileNodeError::IO)?;
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//regex script according to Properties lines at the top
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let script_with_overrides=ScriptWithOverrides::from_source(buf).map_err(CompileNodeError::ScriptWithOverrides)?;
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//script
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Ok(Self{
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blacklist:Some(file.name),
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name:script_with_overrides.overrides.name.unwrap_or_else(||search_name.to_owned()),
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class:match (script_with_overrides.overrides.class.as_deref(),hint){
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(Some("ModuleScript"),_)
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|(None,ScriptHint::ModuleScript)=>CompileClass::ModuleScript(script_with_overrides.source),
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(Some("LocalScript"),_)
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|(None,ScriptHint::LocalScript)=>CompileClass::LocalScript(script_with_overrides.source),
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(Some("Script"),_)
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|(None,ScriptHint::Script)=>CompileClass::Script(script_with_overrides.source),
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(class,hint)=>Err(CompileNodeError::InvalidClassOrHint{class:class.map(|s|s.to_owned()),hint})?,
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},
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})
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}
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async fn model(search_name:&str,mut file:FileWithName)->Result<Self,CompileNodeError>{
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//read entire file
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let mut buf=Vec::new();
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file.file.read_to_end(&mut buf).await.map_err(CompileNodeError::IO)?;
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//model
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Ok(Self{
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blacklist:Some(file.name),
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name:search_name.to_owned(),//wrong but gets overwritten by internal model name
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class:CompileClass::Model(buf),
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})
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}
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async fn from_folder(entry:&tokio::fs::DirEntry,style:Option<Style>)->Result<Self,CompileNodeError>{
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let contents_folder=entry.path();
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let file_name=entry.file_name();
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let search_name=file_name.to_str().unwrap();
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//scan inside the folder for an object to define the class of the folder
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let script_query=async {match style{
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Some(Style::Rox)=>QuerySingle::rox(&contents_folder,search_name).resolve().await,
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Some(Style::RoxRojo)=>QueryQuad::rox_rojo(&contents_folder,search_name).resolve().await,
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Some(Style::Rojo)=>QueryTriple::rojo(&contents_folder).resolve().await,
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//try all three and complain if there is ambiguity
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None=>mega_triple_join(tokio::join!(
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QuerySingle::rox(&contents_folder,search_name).resolve(),
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//true=search for module here to avoid ambiguity with QuerySingle::rox results
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QueryTriple::rox_rojo(&contents_folder,search_name,true).resolve(),
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QueryTriple::rojo(&contents_folder).resolve(),
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))
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}};
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//model files are rox & rox-rojo only, so it's a lot less work...
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let model_query=get_file_async(contents_folder.clone(),format!("{}.rbxmx",search_name));
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//model? script? both?
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Ok(match tokio::join!(script_query,model_query){
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(Ok(FileHint{file,hint}),Err(QueryResolveError::NotFound))=>Self::script(search_name,file,hint).await?,
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(Err(QueryResolveError::NotFound),Ok(file))=>Self::model(search_name,file).await?,
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(Ok(_),Ok(_))=>Err(CompileNodeError::QueryResolveError(QueryResolveError::Ambiguous))?,
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//neither
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(Err(QueryResolveError::NotFound),Err(QueryResolveError::NotFound))=>Self{
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name:search_name.to_owned(),
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blacklist:None,
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class:CompileClass::Folder,
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},
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//other error
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(Err(e),_)
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|(_,Err(e))=>Err(CompileNodeError::QueryResolveError(e))?
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})
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}
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async fn from_file(entry:&tokio::fs::DirEntry,style:Option<Style>)->Result<Self,CompileNodeError>{
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let mut file_name=entry
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.file_name()
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.into_string()
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.map_err(CompileNodeError::FileName)?;
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//reject goobers
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let is_goober=match style{
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Some(Style::Rojo)=>true,
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_=>false,
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};
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let (ext_len,file_discernment)={
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if let Some(captures)=lazy_regex::regex!(r"^.*(.module.lua|.client.lua|.server.lua|.rbxmx|.lua)$")
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.captures(file_name.as_str()){
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let ext=&captures[1];
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(ext.len(),match ext{
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".module.lua"=>{
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if is_goober{
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Err(CompileNodeError::ExtensionNotSupportedInStyle{extension:ext.to_owned(),style})?;
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}
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FileDiscernment::Script(ScriptHint::ModuleScript)
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},
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".client.lua"=>FileDiscernment::Script(ScriptHint::LocalScript),
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".server.lua"=>FileDiscernment::Script(ScriptHint::Script),
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".rbxmx"=>{
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if is_goober{
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Err(CompileNodeError::ExtensionNotSupportedInStyle{extension:ext.to_owned(),style})?;
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}
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FileDiscernment::Model
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},
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".lua"=>FileDiscernment::Script(ScriptHint::ModuleScript),
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_=>panic!("Regex failed"),
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})
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}else{
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return Err(CompileNodeError::NoExtension);
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}
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};
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file_name.truncate(file_name.len()-ext_len);
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|
let file=tokio::fs::File::open(entry.path()).await.map_err(CompileNodeError::IO)?;
|
||
|
Ok(match file_discernment{
|
||
|
FileDiscernment::Model=>Self::model(file_name.as_str(),FileWithName{file,name:file_name.clone()}).await?,
|
||
|
FileDiscernment::Script(hint)=>Self::script(file_name.as_str(),FileWithName{file,name:file_name.clone()},hint).await?,
|
||
|
})
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#[derive(Debug)]
|
||
|
pub enum ScriptHint{
|
||
|
Script,
|
||
|
LocalScript,
|
||
|
ModuleScript,
|
||
|
}
|
||
|
struct FileHint{
|
||
|
file:FileWithName,
|
||
|
hint:ScriptHint,
|
||
|
}
|
||
|
|
||
|
enum PreparedData{
|
||
|
Model(rbx_dom_weak::WeakDom),
|
||
|
Builder(rbx_dom_weak::InstanceBuilder),
|
||
|
}
|
||
|
|
||
|
enum CompileStackInstruction{
|
||
|
TraverseReferent(rbx_dom_weak::types::Ref,Option<String>),
|
||
|
PopFolder,
|
||
|
}
|
||
|
|
||
|
fn script_builder(class:&str,name:&str,source:String)->rbx_dom_weak::InstanceBuilder{
|
||
|
let mut builder=rbx_dom_weak::InstanceBuilder::new(class);
|
||
|
builder.set_name(name);
|
||
|
builder.add_property("Source",rbx_dom_weak::types::Variant::String(source));
|
||
|
builder
|
||
|
}
|
||
|
|
||
|
enum TooComplicated<T>{
|
||
|
Stop,
|
||
|
Value(T),
|
||
|
Skip,
|
||
|
}
|
||
|
|
||
|
pub struct CompileConfig{
|
||
|
pub input_folder:PathBuf,
|
||
|
pub style:Option<Style>,
|
||
|
}
|
||
|
|
||
|
#[derive(Debug)]
|
||
|
pub enum CompileError{
|
||
|
NullChildRef,
|
||
|
IO(std::io::Error),
|
||
|
CompileNode(CompileNodeError),
|
||
|
DecodeError(rbx_xml::DecodeError),
|
||
|
JoinError(tokio::task::JoinError),
|
||
|
}
|
||
|
impl std::fmt::Display for CompileError{
|
||
|
fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
|
||
|
write!(f,"{self:?}")
|
||
|
}
|
||
|
}
|
||
|
impl std::error::Error for CompileError{}
|
||
|
|
||
|
pub async fn compile(config:CompileConfig,mut dom:&mut rbx_dom_weak::WeakDom)->Result<(),CompileError>{
|
||
|
//hack to traverse root folder as the root object
|
||
|
dom.root_mut().name="src".to_owned();
|
||
|
//add in scripts and models
|
||
|
let mut folder=config.input_folder.clone();
|
||
|
let mut stack:Vec<CompileStackInstruction>=vec![CompileStackInstruction::TraverseReferent(dom.root_ref(),None)];
|
||
|
while let Some(instruction)=stack.pop(){
|
||
|
match instruction{
|
||
|
CompileStackInstruction::TraverseReferent(item_ref,blacklist)=>{
|
||
|
//scope to avoid holding item ref
|
||
|
{
|
||
|
let item=dom.get_by_ref(item_ref).ok_or(CompileError::NullChildRef)?;
|
||
|
let folder_name=sanitize(item.name.as_str());
|
||
|
folder.push(folder_name.as_ref());
|
||
|
//drop item
|
||
|
}
|
||
|
stack.push(CompileStackInstruction::PopFolder);
|
||
|
//check if a folder exists with item.name
|
||
|
if let Ok(dir)=tokio::fs::read_dir(folder.as_path()).await{
|
||
|
let mut exist_names:std::collections::HashSet<String>={
|
||
|
let item=dom.get_by_ref(item_ref).ok_or(CompileError::NullChildRef)?;
|
||
|
//push existing dom children objects onto stack (unrelated to exist_names)
|
||
|
stack.extend(item.children().into_iter().map(|&referent|CompileStackInstruction::TraverseReferent(referent,None)));
|
||
|
//get names of existing objects
|
||
|
item.children().into_iter().map(|&child_ref|{
|
||
|
let child=dom.get_by_ref(child_ref).ok_or(CompileError::NullChildRef)?;
|
||
|
Ok::<_,CompileError>(sanitize(child.name.as_str()).to_string())
|
||
|
}).collect::<Result<_,CompileError>>()?
|
||
|
};
|
||
|
if let Some(dont)=blacklist{
|
||
|
exist_names.insert(dont);
|
||
|
}
|
||
|
//generate children from folder contents UNLESS! item already has a child of the same name
|
||
|
|
||
|
let style=config.style;
|
||
|
let exist_names=&exist_names;
|
||
|
futures::stream::unfold(dir,|mut dir1|async{
|
||
|
//thread the needle! follow the path that dir takes!
|
||
|
let ret1={
|
||
|
//capture a scoped mutable reference so we can forward dir to the next call even on an error
|
||
|
let dir2=&mut dir1;
|
||
|
(||async move{//error catcher so I can use ?
|
||
|
let ret2=if let Some(entry)=dir2.next_entry().await?{
|
||
|
//cull early even if supporting things with identical names is possible
|
||
|
if exist_names.contains(entry.file_name().to_str().unwrap()){
|
||
|
TooComplicated::Skip
|
||
|
}else{
|
||
|
TooComplicated::Value(entry)
|
||
|
}
|
||
|
}else{
|
||
|
TooComplicated::Stop
|
||
|
};
|
||
|
Ok(ret2)
|
||
|
})().await
|
||
|
};
|
||
|
match ret1{
|
||
|
Ok(TooComplicated::Stop)=>None,
|
||
|
Ok(TooComplicated::Skip)=>Some((Ok(None),dir1)),
|
||
|
Ok(TooComplicated::Value(v))=>Some((Ok(Some(v)),dir1)),
|
||
|
Err(e)=>Some((Err(CompileError::IO(e)),dir1)),
|
||
|
}
|
||
|
})
|
||
|
|
||
|
//gotta spawn off the worker threads (Model is slow)
|
||
|
.then(|bog|async{
|
||
|
match bog{
|
||
|
Ok(Some(entry))=>tokio::spawn(async move{
|
||
|
let met=entry.metadata().await.map_err(CompileError::IO)?;
|
||
|
//discern that bad boy
|
||
|
let compile_class=match met.is_dir(){
|
||
|
true=>CompileNode::from_folder(&entry,style).await,
|
||
|
false=>CompileNode::from_file(&entry,style).await,
|
||
|
}.map_err(CompileError::CompileNode)?;
|
||
|
//prepare data structure
|
||
|
Ok(Some((compile_class.blacklist,match compile_class.class{
|
||
|
CompileClass::Folder=>PreparedData::Builder(rbx_dom_weak::InstanceBuilder::new("Folder").with_name(compile_class.name.as_str())),
|
||
|
CompileClass::Script(source)=>PreparedData::Builder(script_builder("Script",compile_class.name.as_str(),source)),
|
||
|
CompileClass::LocalScript(source)=>PreparedData::Builder(script_builder("LocalScript",compile_class.name.as_str(),source)),
|
||
|
CompileClass::ModuleScript(source)=>PreparedData::Builder(script_builder("ModuleScript",compile_class.name.as_str(),source)),
|
||
|
CompileClass::Model(buf)=>PreparedData::Model(rbx_xml::from_reader_default(std::io::Cursor::new(buf)).map_err(CompileError::DecodeError)?),
|
||
|
})))
|
||
|
}).await.map_err(CompileError::JoinError)?,
|
||
|
Ok(None)=>Ok(None),
|
||
|
Err(e)=>Err(e),
|
||
|
}
|
||
|
})
|
||
|
|
||
|
//is this even what I want?
|
||
|
.map(|f|async{f}).buffer_unordered(32)
|
||
|
|
||
|
//begin processing immediately
|
||
|
//TODO: fix dom being &mut &mut inside the closure
|
||
|
.try_fold((&mut stack,&mut dom),|(stack,dom),bog|async{
|
||
|
//push child objects onto dom serially as they arrive
|
||
|
match bog{
|
||
|
Some((blacklist,data))=>{
|
||
|
let referent=match data{
|
||
|
PreparedData::Model(mut model_dom)=>{
|
||
|
let referent=model_dom.root().children()[0];
|
||
|
model_dom.transfer(referent,dom,item_ref);
|
||
|
referent
|
||
|
},
|
||
|
PreparedData::Builder(script)=>dom.insert(item_ref,script),
|
||
|
};
|
||
|
//new children need to be traversed
|
||
|
stack.push(CompileStackInstruction::TraverseReferent(referent,blacklist));
|
||
|
},
|
||
|
None=>(),
|
||
|
}
|
||
|
Ok((stack,dom))
|
||
|
}).await?;
|
||
|
}
|
||
|
},
|
||
|
CompileStackInstruction::PopFolder=>assert!(folder.pop(),"pop folder bad"),
|
||
|
}
|
||
|
}
|
||
|
unreachable!();
|
||
|
}
|