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//! `tlrepo` provides `ThreadLocalRepo`, a convenient way to share a `git2::Repository` object //! between threads. //! //! A standard `git2::Repository` object does not support sharing among threads without some form //! of synchronization. `tlrepo::ThreadLocalRepo` provides a convenient way to reopen the same //! repository on each thread, caching the opened repository thread-locally for reuse. //! //! You can create a `ThreadLocalRepo` by calling `ThreadLocalRepo::new`, or by using the extension //! trait `tlrepo::RepositoryExt` to call `.thread_local()` on an existing `git2::Repository`. #![deny(missing_docs)] use std::path::PathBuf; use git2::Repository; use thread_local::ThreadLocal; /// An object providing a thread-local copy of a `git2::Repository` for each thread. pub struct ThreadLocalRepo { tl: ThreadLocal<Repository>, path: PathBuf, } impl ThreadLocalRepo { /// Create a `ThreadLocalRepo` that opens the repository at the specified path on each thread. pub fn new(path: PathBuf) -> Self { Self { path, tl: ThreadLocal::new(), } } /// Get the `git2::Repository` for this thread. Returns an error if the open fails. pub fn get(&self) -> Result<&Repository, git2::Error> { self.tl.get_or_try(|| Repository::open(&self.path)) } } /// Extension trait for `git2::Repository`, to create a `ThreadLocalRepo` with the path to the /// repository. pub trait RepositoryExt { /// Get a `ThreadLocalRepo` that reopens the path to this `git2::Repository` on each thread. fn thread_local(&self) -> ThreadLocalRepo; } impl RepositoryExt for Repository { fn thread_local(&self) -> ThreadLocalRepo { ThreadLocalRepo::new(self.path().to_path_buf()) } }