errors.rs
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use axum::http::{ StatusCode }; use axum::response::{ IntoResponse, Response }; use std::io; use std::fmt; use std::num; use std::path::{ PathBuf }; use std::string; pub(crate) type Result<T> = ::std::result::Result<T, Error>; #[derive(Debug)] pub(crate) enum Error { CannotDetermineRepositoryName(PathBuf), FromConfigCrate(config::ConfigError), FromGit2Crate(git2::Error), FromTeraCrate(tera::Error), FromStdIo(io::Error), InvalidGitRoot(io::Error), InvalidPort(num::TryFromIntError), NonUtf8Blob(string::FromUtf8Error), ObjectNotFoundByPath(String), RepositoryNotFound(String), UnexpectedObjectType(git2::ObjectType), UnnamedTreeEntry(git2::Oid), UntypedTreeEntry(git2::Oid), } impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { use Error::*; match *self { CannotDetermineRepositoryName(ref path) => write!(f, "Cannot determine repository name for {}", path.display()), FromConfigCrate(ref e) => write!(f, "Error from the config crate: {}", e), FromGit2Crate(ref e) => write!(f, "Error from the git2 crate: {}", e), FromTeraCrate(ref e) => write!(f, "Error from the tera crate: {}", e), FromStdIo(ref e) => write!(f, "IO error: {}", e), InvalidGitRoot(ref e) => write!(f, "Invalid git.root: {}", e), InvalidPort(ref e) => write!(f, "Invalid network.port: {}", e), NonUtf8Blob(ref e) => write!(f, "Blob is not valid UTF-8: {}", e), ObjectNotFoundByPath(ref p) => write!(f, "Object not found by path: {}", p), RepositoryNotFound(ref name) => write!(f, "Repository not found: {}", name), UnexpectedObjectType(ref t) => write!(f, "Unexpected object type: {}", t), UnnamedTreeEntry(ref oid) => write!(f, "Unnamed tree entry: {}", oid), UntypedTreeEntry(ref oid) => write!(f, "Untyped tree entry: {}", oid), } } } impl From<config::ConfigError> for Error { fn from(e: config::ConfigError) -> Error { Error::FromConfigCrate(e) } } impl From<git2::Error> for Error { fn from(e: git2::Error) -> Error { Error::FromGit2Crate(e) } } impl From<tera::Error> for Error { fn from(e: tera::Error) -> Error { Error::FromTeraCrate(e) } } impl From<io::Error> for Error { fn from(e: io::Error) -> Error { Error::FromStdIo(e) } } impl From<string::FromUtf8Error> for Error { fn from(e: string::FromUtf8Error) -> Error { Error::NonUtf8Blob(e) } } impl IntoResponse for Error { fn into_response(self) -> Response { use Error::*; tracing::error!("{}", &self); let body = match self { CannotDetermineRepositoryName(..) => "The server encountered an unexpected error", FromConfigCrate(..) => "The server encountered an unexpected error", FromGit2Crate(..) => "The server encountered an unexpected error", FromTeraCrate(..) => "The server encountered an unexpected error", FromStdIo(..) => "The server encountered an unexpected error", InvalidGitRoot(..) => "The server encountered an unexpected error", InvalidPort(..) => "The server encountered an unexpected error", NonUtf8Blob(..) => "The server encountered an unexpected error", ObjectNotFoundByPath(..) => "Object not found", RepositoryNotFound(..) => "Repository not found", UnexpectedObjectType(..) => "The server encountered an unexpected error", UnnamedTreeEntry(..) => "The server encountered an unexpected error", UntypedTreeEntry(..) => "The server encountered an unexpected error", }; (StatusCode::INTERNAL_SERVER_ERROR, body).into_response() } }