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#![deny(clippy::unwrap_used)]
#![deny(clippy::expect_used)]
#![deny(clippy::panic)]
#![deny(clippy::manual_assert)]
#![deny(clippy::indexing_slicing)]
pub mod image;
pub mod iomem;
mod snapshot;
mod upload;
mod write_counter;
#[cfg(feature = "blobstore")]
pub use crate::upload::blobstore::{BlobUploader, DEFAULT_CONCURRENCY};
#[cfg(feature = "put")]
pub use crate::upload::http::put;
pub use crate::snapshot::{Snapshot, Source};
pub const ONE_MB: usize = 1024 * 1024;
#[derive(thiserror::Error)]
pub enum Error {
#[error("unable to create snapshot")]
Image(#[from] crate::image::Error),
#[error("unable to read memory")]
Memory(#[from] crate::snapshot::Error),
#[error("unable to parse /proc/iomem")]
Iomem(#[from] crate::iomem::Error),
#[cfg(feature = "put")]
#[error("unable to upload file via PUT")]
Upload(#[from] crate::upload::http::Error),
#[cfg(feature = "blobstore")]
#[error("unable to upload file to Azure Storage")]
Blob(#[from] crate::upload::blobstore::Error),
#[cfg(any(feature = "blobstore", feature = "put"))]
#[error("tokio runtime error: {0}")]
Tokio(#[source] std::io::Error),
#[cfg(any(feature = "blobstore", feature = "put"))]
#[error("unable to remove snapshot")]
RemoveSnapshot(#[source] std::io::Error),
#[error("no conversion required")]
NoConversionRequired,
}
pub type Result<T> = std::result::Result<T, Error>;
pub(crate) fn format_error(
e: &impl std::error::Error,
f: &mut std::fmt::Formatter,
) -> std::fmt::Result {
write!(f, "error: {}", e)?;
let mut source = e.source();
if e.source().is_some() {
writeln!(f, "\ncaused by:")?;
let mut i: usize = 0;
while let Some(inner) = source {
writeln!(f, "{: >5}: {}", i, inner)?;
source = inner.source();
i += 1;
}
}
Ok(())
}
impl std::fmt::Debug for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
format_error(self, f)
}
}
pub(crate) fn indent<T: AsRef<str>>(data: T, indent: usize) -> String {
data.as_ref()
.split('\n')
.map(|line| format!("{:indent$}{}", "", line, indent = indent))
.collect::<Vec<_>>()
.join("\n")
}