Allow library users to provide configuration directly

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "image_thumbs"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 repository = "https://github.com/tweedegolf/image-thumbs"
 keywords = ["GCS", "image", "thumbnails"]

src/gcs.rs

@@ -1,5 +1,6 @@
 use object_store::gcp::{GoogleCloudStorage, GoogleCloudStorageBuilder};
 
+use crate::model::Params;
 use crate::{ImageThumbs, ThumbsResult};
 
 impl ImageThumbs<GoogleCloudStorage> {
@@ -26,4 +27,12 @@ impl ImageThumbs<GoogleCloudStorage> {
             settings: Self::settings(config)?,
         })
     }
+
+    pub async fn new_with_settings(settings: Vec<Params>) -> ThumbsResult<Self> {
+        let client = GoogleCloudStorageBuilder::from_env()
+            .with_client_options(Self::client_options())
+            .build()?;
+
+        Ok(Self { client, settings })
+    }
 }

src/model.rs

@@ -9,7 +9,7 @@ pub struct ImageThumbs<T> {
 }
 
 #[derive(Deserialize, Debug, Clone)]
-pub(crate) struct Params {
+pub struct Params {
     /// Can be used as `{thumb_name}` in the `naming_pattern`.
     /// If the naming_pattern is not explicitly given, the default is
     /// "`/{thumb_name}/{image_name}.{image_extension}`"