Enum CacheBusterError 

pub enum CacheBusterError {
    ReadDirectory {
        path: PathBuf,
        source: Error,
    },
    ReadFile {
        path: PathBuf,
        source: Error,
    },
    Rename {
        from: PathBuf,
        to: PathBuf,
        source: Error,
    },
    SourceMap {
        path: PathBuf,
        source: Error,
    },
    MissingStaticDirectory {
        path: PathBuf,
    },
    MissingFavicon,
    AmbiguousFavicon,
    UnexpectedFavicons {
        directory: &'static str,
        count: usize,
        unexpected: String,
        allowed: String,
    },
    FaviconDimensions {
        path: PathBuf,
        expected: u32,
        width: u32,
        height: u32,
    },
    ReadImage {
        path: PathBuf,
        reason: String,
    },
    UnresolvedAssets {
        count: usize,
        missing: String,
    },
    IconMismatch {
        path: String,
        expected: u32,
        found: String,
    },
    RenderIcon {
        source: Error,
    },
    IconDimensions {
        size: u32,
    },
    EncodeIcon {
        reason: String,
    },
    WriteIcon {
        path: PathBuf,
        source: Error,
    },
    ParseManifest {
        path: PathBuf,
        source: Error,
    },
    MissingManifest {
        path: PathBuf,
    },
    WriteManifest {
        path: PathBuf,
        source: Error,
    },
    SerializeManifest(Error),
}

Why the asset cache could not be built.

All boot-time failures. Lookups afterwards never fail — CacheBuster::get_file falls back to the unhashed path rather than taking a page down over one image.

Variants

ReadDirectory

A directory under the asset root could not be read.

Fields

path: PathBuf

source: Error

ReadFile

A file could not be read in order to hash it.

Fields

path: PathBuf

source: Error

Rename

A file could not be renamed to its content-hashed name.

Fields

from: PathBuf

to: PathBuf

source: Error

SourceMap

A .js file’s sourceMappingURL comment could not be rewritten.

Fields

path: PathBuf

source: Error

MissingStaticDirectory

The static-asset pipeline was run somewhere without a static/.

Fields

path: PathBuf

MissingFavicon

A frontend shipped no source icon.

AmbiguousFavicon

A frontend shipped both icon sources.

UnexpectedFavicons

The icon directory holds something that is neither a source nor derived.

Fields

directory: &'static str

count: usize

unexpected: String

allowed: String

FaviconDimensions

The raster icon source is not the required size.

Fields

path: PathBuf

expected: u32

width: u32

height: u32

ReadImage

An image’s dimensions could not be read.

Fields

path: PathBuf

reason: String

UnresolvedAssets

A declared asset is not in the manifest, so its URL would 404.

Fields

count: usize

missing: String

IconMismatch

A generated icon is absent or the wrong size.

Fields

path: String

expected: u32

found: String

RenderIcon

favicon.svg could not be parsed.

Fields

source: Error

IconDimensions

A pixel buffer of the requested size could not be allocated.

Fields

size: u32

EncodeIcon

A rendered icon could not be encoded. Carried as text because the encoder’s error type belongs to a crate this one does not name directly.

Fields

reason: String

WriteIcon

A generated icon could not be written.

Fields

path: PathBuf

source: Error

ParseManifest

The manifest exists but is not valid JSON.

Fields

path: PathBuf

source: Error

MissingManifest

A site has static assets but no manifest, so every hashed URL would 404.

Fields

path: PathBuf

WriteManifest

The cache manifest could not be written.

Fields

path: PathBuf

source: Error

SerializeManifest(Error)

The manifest could not be serialized.

Trait Implementations

impl Debug for CacheBusterError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CacheBusterError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for CacheBusterError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<CacheBusterError> for WebServerError

fn from(source: CacheBusterError) -> Self

Converts to this type from the input type.