Trait VcsProvider 

pub trait VcsProvider: Send + Sync {
    // Required methods
    fn find_repo_root(&self, start: &Path) -> Option<PathBuf>;
    fn file_at_commit(
        &self,
        repo_root: &Path,
        rel_path: &str,
        commit: &str,
    ) -> Result<String, String>;
    fn verify_commit_signature(
        &self,
        repo_root: &Path,
        commit: &str,
    ) -> Result<(), SignatureFailure>;
    fn load_trusted_signers(&self, signers: &[TrustedSigner]) -> usize;
}

The git operations the runtime needs, as an interface.

Implementations must be cheap to clone-by-Arc and safe to call from any thread: a provider is shared by every thread evaluating in a GlobalEnv.

Required Methods

fn find_repo_root(&self, start: &Path) -> Option<PathBuf>

Walk upward from start (a file or directory) to the enclosing git working-tree root, or None when start is not inside a repository.

fn file_at_commit( &self, repo_root: &Path, rel_path: &str, commit: &str, ) -> Result<String, String>

Read rel_path (relative to repo_root) as it existed at commit.

fn verify_commit_signature( &self, repo_root: &Path, commit: &str, ) -> Result<(), SignatureFailure>

Verify that commit in repo_root carries a cryptographically valid signature made by one of the keys installed by load_trusted_signers.

fn load_trusted_signers(&self, signers: &[TrustedSigner]) -> usize

Install the set of keys trusted to sign versioned dependency commits, replacing any previously installed set. Returns the number of keys successfully loaded; malformed or unreadable keys are warned about rather than aborting.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl VcsProvider for ProjectVcs

Available on crate feature deps and non-WebAssembly only.