zeroshade commented on code in PR #3099:
URL: https://github.com/apache/arrow-adbc/pull/3099#discussion_r2195919109
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rust/core/src/driver_manager.rs:
##########
@@ -184,6 +279,59 @@ impl ManagedDriver {
Ok(ManagedDriver { inner })
}
+ /// Load a driver either by name, filename, path, or via locating a toml
manifest file.
+ /// The `load_flags` control what directories are searched to locate a
manifest.
+ /// The `entrypoint` allows customizing the name of the driver
initialization function
+ /// if it is not the default `AdbcDriverInit` and isn't described in the
loaded manifest.
+ /// If not provided, an entrypoint will be searched for based on the
driver's name.
+ /// The `version` defines the ADBC revision to attempt to initialize.
+ ///
+ /// The full logic used here is as follows:
+ /// - if `name` has an extension: it is treated as a filename. If the
load_flags does not
+ /// contain `LOAD_FLAG_ALLOW_RELATIVE_PATHS`, then relative paths will
be rejected.
+ /// - if the extension is `toml` then we attempt to load the Driver
Manifest, otherwise
+ /// we defer to the previous logic in load_dynamic_from_filename
which will attempt to
+ /// load the library
+ /// - if `name` does not have an extension but is an absolute path: we
first check to see
+ /// if there is an existing file with the same name that *does* have a
"toml" extension,
+ /// attempting to load that if it exists. Otherwise we just pass it to
load_dynamic_from_filename.
+ /// - Finally, if there's no extension and it is not an absolute path, we
call `find_driver`
Review Comment:
It's not intended to be a public method, we're just describing the logic
that if given a name that doesn't have an extension, we fallback to that method.
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