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use derive_more::From;
pub type Result<T> = core::result::Result<T, Error>;
#[derive(Debug, From)]
pub enum Error {
InvalidPath,
NotFound(String),
Download {
url: String,
source: reqwest::Error,
},
InvalidAppImage,
#[from]
Io(std::io::Error),
#[from]
Json(serde_json::Error),
#[from]
Http(reqwest::Error),
#[from]
EnvVar(std::env::VarError),
#[from]
IndicatifTemplate(indicatif::style::TemplateError),
}
impl core::fmt::Display for Error {
fn fmt(&self, fmt: &mut core::fmt::Formatter) -> core::result::Result<(), std::fmt::Error> {
match self {
Error::Io(e) => write!(fmt, "{e}"),
Error::NotFound(name) => write!(fmt, "Application '{name}' not found"),
Error::Json(e) => write!(fmt, "JSON error: {e}"),
Error::Http(e) => write!(fmt, "HTTP error: {e}"),
Error::EnvVar(e) => write!(fmt, "Environment variable error: {e}"),
Error::InvalidPath => write!(fmt, "Invalid path provided"),
Error::IndicatifTemplate(e) => write!(fmt, "Progress bar template error: {e}"),
Error::Download { url, source } => {
if source.is_timeout() {
write!(fmt, "Download timed out from: {url}")
} else if source.is_connect() {
write!(fmt, "Failed to connect to: {url}")
} else if let Some(status) = source.status() {
match status.as_u16() {
404 => write!(fmt, "AppImage not found at: {url}"),
403 => write!(fmt, "Access denied at: {url}"),
500..=599 => write!(fmt, "Server error when downloading from: {url}"),
_ => write!(fmt, "HTTP {status} error downloading from: {url}"),
}
} else {
write!(fmt, "Failed to download from {url}: {source}")
}
}
Error::InvalidAppImage => {
write!(fmt, "Invalid AppImage")
}
}
}
}
impl std::error::Error for Error {}
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