stash

ecstore/src/config/common.rs

@@ -0,0 +1,54 @@
+use crate::disk::RUSTFS_META_BUCKET;
+use crate::error::{Error, Result};
+use crate::store::ECStore;
+use crate::store_api::{HTTPRangeSpec, ObjectIO, ObjectInfo, ObjectOptions, PutObjReader};
+use http::HeaderMap;
+use s3s::dto::StreamingBlob;
+use s3s::Body;
+
+use super::error::ConfigError;
+
+pub async fn read_config(api: &ECStore, file: &str) -> Result<Vec<u8>> {
+    let (data, _obj) = read_config_with_metadata(api, file, &ObjectOptions::default()).await?;
+
+    Ok(data)
+}
+
+async fn read_config_with_metadata(api: &ECStore, file: &str, opts: &ObjectOptions) -> Result<(Vec<u8>, ObjectInfo)> {
+    let range = HTTPRangeSpec::nil();
+    let h = HeaderMap::new();
+    let mut rd = api.get_object_reader(RUSTFS_META_BUCKET, file, range, h, &opts).await?;
+
+    let data = rd.read_all().await?;
+
+    if data.is_empty() {
+        return Err(Error::new(ConfigError::NotFound));
+    }
+
+    Ok((data, rd.object_info))
+}
+
+pub async fn save_config(api: &ECStore, file: &str, data: &[u8]) -> Result<()> {
+    save_config_with_opts(
+        api,
+        file,
+        data,
+        &ObjectOptions {
+            max_parity: true,
+            ..Default::default()
+        },
+    )
+    .await
+}
+
+async fn save_config_with_opts(api: &ECStore, file: &str, data: &[u8], opts: &ObjectOptions) -> Result<()> {
+    let _ = api
+        .put_object(
+            RUSTFS_META_BUCKET,
+            file,
+            PutObjReader::new(StreamingBlob::from(Body::from(data.to_vec())), data.len()),
+            &ObjectOptions::default(),
+        )
+        .await?;
+    Ok(())
+}

ecstore/src/config/error.rs

@@ -0,0 +1,15 @@
+#[derive(Debug, thiserror::Error)]
+pub enum ConfigError {
+    #[error("config not found")]
+    NotFound,
+}
+
+impl ConfigError {
+    /// Returns `true` if the config error is [`NotFound`].
+    ///
+    /// [`NotFound`]: ConfigError::NotFound
+    #[must_use]
+    pub fn is_not_found(&self) -> bool {
+        matches!(self, Self::NotFound)
+    }
+}

ecstore/src/config/mod.rs

@@ -0,0 +1,2 @@
+pub mod common;
+pub mod error;