Enum TreeError 

#[non_exhaustive]
pub enum TreeError {
    ManifestNotFound(PathBuf),
    ManifestRead(String),
    ManifestParse {
        path: PathBuf,
        detail: String,
    },
    Git(GitError),
    CycleDetected {
        chain: Vec<String>,
    },
    PackNameMismatch {
        got: String,
        expected: String,
        path: PathBuf,
    },
    ChildPathInvalid {
        child_name: String,
        path: String,
        reason: String,
    },
}

Errors raised during a pack-tree walk.

Marked #[non_exhaustive] so later slices (credentials, submodules, partial walks) can add variants without breaking consumers.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ManifestNotFound(PathBuf)

The walker expected a pack.yaml at the given location but could not find one (or its enclosing .grex/ directory was missing).

ManifestRead(String)

The manifest file existed but could not be read from disk.

ManifestParse

The manifest file was read but did not parse as a valid pack.yaml.

Fields

path: PathBuf

On-disk location of the manifest that failed to parse.

detail: String

Backend-provided failure detail.

Git(GitError)

A git operation (clone, fetch, checkout, …) failed while hydrating a child pack. The underlying GitError is preserved in full.

CycleDetected

A cycle was detected during the walk. chain lists the pack URLs (or paths for the root) from the outermost pack down to the recurrence.

Fields

chain: Vec<String>

Ordered chain of pack identities that forms the cycle.

PackNameMismatch

A cloned child’s pack.yaml declared a name that does not match what the parent pack expected for that children: entry.

Fields

got: String

Name declared in the child’s own manifest.

expected: String

Name the parent expected (derived from the child entry’s effective path).

path: PathBuf

On-disk location of the offending child.

ChildPathInvalid

A children[].path (or URL-derived tail) violated the bare-name rule. Surfaced by the walker BEFORE any clone of the offending child fires so a malicious path: ../escape in a parent pack cannot materialise a directory outside the pack root. This is a security boundary, not a soft validation concern — see crates/grex-core/src/pack/validate/child_path.rs for the shared rejection logic.

Fields

child_name: String

Label of the offending child (the explicit path: value, or the URL-derived tail when path: is omitted).

path: String

The rejected literal value.

reason: String

One-line explanation of which sub-rule failed.

Trait Implementations

impl Debug for TreeError

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

Formats the value using the given formatter.

impl Display for TreeError

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

Formats the value using the given formatter.

impl Error for TreeError

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<GitError> for TreeError

fn from(source: GitError) -> Self

Converts to this type from the input type.

impl From<TreeError> for SyncError

fn from(source: TreeError) -> Self

Converts to this type from the input type.