From 4d30e62db456097563c574b9dfd22b138d700087 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Thu, 16 Dec 2021 13:17:09 +0100
Subject: New buckets for 0.6.0: migration code and build files

---
 src/model/migrate.rs | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/model/migrate.rs

(limited to 'src/model/migrate.rs')

diff --git a/src/model/migrate.rs b/src/model/migrate.rs
new file mode 100644
index 00000000..35ff1807
--- /dev/null
+++ b/src/model/migrate.rs
@@ -0,0 +1,93 @@
+use std::sync::Arc;
+
+use garage_table::util::EmptyKey;
+use garage_util::crdt::*;
+use garage_util::data::*;
+use garage_util::error::*;
+use garage_util::time::*;
+
+use garage_model_050::bucket_table as old_bucket;
+
+use crate::bucket_alias_table::*;
+use crate::bucket_table::*;
+use crate::garage::Garage;
+use crate::permission::*;
+
+pub struct Migrate {
+	pub garage: Arc<Garage>,
+}
+
+impl Migrate {
+	pub async fn migrate_buckets050(&self) -> Result<(), Error> {
+		let tree = self.garage.db.open_tree("bucket:table")?;
+
+		for res in tree.iter() {
+			let (_k, v) = res?;
+			let bucket = rmp_serde::decode::from_read_ref::<_, old_bucket::Bucket>(&v[..])?;
+
+			if let old_bucket::BucketState::Present(p) = bucket.state.get() {
+				self.migrate_buckets050_do_bucket(&bucket, p).await?;
+			}
+		}
+
+		Ok(())
+	}
+
+	pub async fn migrate_buckets050_do_bucket(
+		&self,
+		old_bucket: &old_bucket::Bucket,
+		old_bucket_p: &old_bucket::BucketParams,
+	) -> Result<(), Error> {
+		let mut new_ak = Map::new();
+		for (k, ts, perm) in old_bucket_p.authorized_keys.items().iter() {
+			new_ak.put(
+				k.to_string(),
+				BucketKeyPerm {
+					timestamp: *ts,
+					allow_read: perm.allow_read,
+					allow_write: perm.allow_write,
+					allow_owner: false,
+				},
+			);
+		}
+
+		let mut aliases = LwwMap::new();
+		aliases.update_in_place(old_bucket.name.clone(), true);
+
+		let new_bucket = Bucket {
+			id: blake2sum(old_bucket.name.as_bytes()),
+			state: Deletable::Present(BucketParams {
+				creation_date: now_msec(),
+				authorized_keys: new_ak.clone(),
+				website_access: Lww::new(*old_bucket_p.website.get()),
+				website_config: Lww::new(None),
+				aliases,
+				local_aliases: LwwMap::new(),
+			}),
+		};
+		self.garage.bucket_table.insert(&new_bucket).await?;
+
+		let new_alias = BucketAlias {
+			name: old_bucket.name.clone(),
+			state: Lww::new(Deletable::Present(AliasParams {
+				bucket_id: new_bucket.id,
+			})),
+		};
+		self.garage.bucket_alias_table.insert(&new_alias).await?;
+
+		for (k, perm) in new_ak.items().iter() {
+			let mut key = self
+				.garage
+				.key_table
+				.get(&EmptyKey, k)
+				.await?
+				.ok_or_message(format!("Missing key: {}", k))?;
+			if let Some(p) = key.state.as_option_mut() {
+				p.authorized_buckets.put(new_bucket.id, *perm);
+			}
+			self.garage.key_table.insert(&key).await?;
+		}
+
+		Ok(())
+	}
+}
-- 
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