edward/bunbun
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use macros

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This commit is contained in:
Edward Shen 2019-12-21 23:34:03 -05:00
parent 320e41c6f2
commit 996924582a
Signed by: edward
GPG key ID: F350507060ED6C90
1 changed files with 43 additions and 37 deletions
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52
src/main.rs
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@ -22,6 +22,7 @@ static CONFIG_FILE: &str = "bunbun.toml";
enum BunBunError { enum BunBunError {
IoError(std::io::Error), IoError(std::io::Error),
ParseError(serde_yaml::Error), ParseError(serde_yaml::Error),
WatchError(hotwatch::Error),
} }
impl fmt::Display for BunBunError { impl fmt::Display for BunBunError {
@ -29,23 +30,26 @@ impl fmt::Display for BunBunError {
match self { match self {
BunBunError::IoError(e) => e.fmt(f), BunBunError::IoError(e) => e.fmt(f),
BunBunError::ParseError(e) => e.fmt(f), BunBunError::ParseError(e) => e.fmt(f),
BunBunError::WatchError(e) => e.fmt(f),
} }
} }
} }
impl Error for BunBunError {} impl Error for BunBunError {}
impl From<std::io::Error> for BunBunError { macro_rules! from_error {
fn from(error: std::io::Error) -> Self { ($from:ty, $to:ident) => {
BunBunError::IoError(error) impl From<$from> for BunBunError {
fn from(e: $from) -> Self {
BunBunError::$to(e)
} }
} }
};
}
impl From<serde_yaml::Error> for BunBunError { from_error!(std::io::Error, IoError);
fn from(error: serde_yaml::Error) -> Self { from_error!(serde_yaml::Error, ParseError);
BunBunError::ParseError(error) from_error!(hotwatch::Error, WatchError);
}
}
#[get("/ls")] #[get("/ls")]
fn list(data: Data<Arc<RwLock<State>>>) -> impl Responder { fn list(data: Data<Arc<RwLock<State>>>) -> impl Responder {
@ -163,11 +167,9 @@ fn main() -> Result<(), BunBunError> {
})); }));
let state_ref = state.clone(); let state_ref = state.clone();
let mut watch = let mut watch = Hotwatch::new_with_custom_delay(Duration::from_millis(500))?;
Hotwatch::new_with_custom_delay(Duration::from_millis(500)).expect("Failed to init watch");
watch watch.watch(CONFIG_FILE, move |e: Event| {
.watch(CONFIG_FILE, move |e: Event| {
if let Event::Write(_) = e { if let Event::Write(_) = e {
let mut state = state.write().unwrap(); let mut state = state.write().unwrap();
match read_config(CONFIG_FILE) { match read_config(CONFIG_FILE) {
@ -179,8 +181,7 @@ fn main() -> Result<(), BunBunError> {
Err(e) => eprintln!("Config is malformed: {}", e), Err(e) => eprintln!("Config is malformed: {}", e),
} }
} }
}) })?;
.expect("failed to watch");
HttpServer::new(move || { HttpServer::new(move || {
App::new() App::new()
@ -218,22 +219,27 @@ fn read_config(config_file_path: &str) -> Result<Config, BunBunError> {
fn compile_templates() -> Handlebars { fn compile_templates() -> Handlebars {
let mut handlebars = Handlebars::new(); let mut handlebars = Handlebars::new();
macro_rules! register_template {
( $( $template:expr ),* ) => {
$(
handlebars handlebars
.register_template_string( .register_template_string(
"index", $template,
String::from_utf8_lossy(include_bytes!("templates/index.hbs")), String::from_utf8_lossy(
include_bytes!(concat!("templates/", $template, ".hbs")))
) )
.unwrap(); .unwrap();
)*
};
}
register_template!("index", "list");
handlebars handlebars
.register_template_string( .register_template_string(
"opensearch", "opensearch",
String::from_utf8_lossy(include_bytes!("templates/bunbunsearch.xml")), String::from_utf8_lossy(include_bytes!(concat!("templates/", "bunbunsearch.xml"))),
)
.unwrap();
handlebars
.register_template_string(
"list",
String::from_utf8_lossy(include_bytes!("templates/list.hbs")),
) )
.unwrap(); .unwrap();
handlebars handlebars