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/// Configure how caches are used to speed up various git repository operations
impl crate::Repository {
/// Sets the amount of space used at most for caching most recently accessed fully decoded objects, to `Some(bytes)`,
/// or `None` to deactivate it entirely.
///
/// Note that it is unset by default but can be enabled once there is time for performance optimization.
/// Well-chosen cache sizes can improve performance particularly if objects are accessed multiple times in a row.
/// The cache is configured to grow gradually.
///
/// Note that a cache on application level should be considered as well as the best object access is not doing one.
pub fn object_cache_size(&mut self, bytes: impl Into<Option<usize>>) {
let bytes = bytes.into();
match bytes {
Some(0) => self.objects.unset_object_cache(),
Some(bytes) => self
.objects
.set_object_cache(move || Box::new(crate::object::cache::MemoryCappedHashmap::new(bytes))),
None => self.objects.unset_object_cache(),
}
}
/// Set an object cache of size `bytes` if none is set.
///
/// Use this method to avoid overwriting any existing value while assuring better performance in case no value is set.
pub fn object_cache_size_if_unset(&mut self, bytes: usize) {
if !self.objects.has_object_cache() {
self.object_cache_size(bytes)
}
}
}
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