V7 (#97)

* v7 wip

* missing getter on CoreTracker

* forward user preload to core

* add back sessions and namespaces

* missing encryption key

* must wait for root in sessions

* or null

* decode keys

* add some compat fields

* wait should default to true

* root core store closes all cores

* switch to rocksdb branch

* update package.json

* primaryKey can be optionally passed in

* global cache

* support setNamespace for mutating the ns if you know what you are doing

* Fix namespace before ready (#98)

* add hanging namespace test

* fix deadlock

---------

Co-authored-by: Mathias Buus <mathiasbuus@gmail.com>

* add week ref test

* kill bootstrap and move to simple from key (#100)

* kill bootstrap and move to simple from key

* kill more

* serial line killer

* test for preready sessions

* missing close

* Session manager (#101)

* wip

* fix mutation during iteration

* move ready down

* limit preload usage (#102)

* Support passing encryption in preload (#103)

* support passing encryption from preload

* init isBlockKey also

* forward writable option

---------

Co-authored-by: Mathias Buus <mathiasbuus@gmail.com>

* pre tag with 7

* cores.get supports buffers

* Fix get (#104)

* we fixed the wrong typo

* add watch/unwatch for monitoring core flows

* pin to specific hash tmp

* v7 bump to hypercore 11 (#105)

* bump to hypercore 11

* updated storage api

* remove stale arg

* correctly set primary key if parallel

* condense

* this.primaryKey may be set in constructor

* tweak core setup to use alias and fix open

* test aliases

* docs

* also decode dkey since public

* basic replication test

---------

Co-authored-by: Christophe Diederichs <chm-diederichs@protonmail.com>
Co-authored-by: Christophe Diederichs <45171645+chm-diederichs@users.noreply.github.com>
Co-authored-by: HDegroote <75906619+HDegroote@users.noreply.github.com>

README.md

@@ -13,6 +13,11 @@ Corestore provides:
 ### Installation
 `npm install corestore`
 
+> [!NOTE]
+> This readme reflects Corestore 7, our latest major version that is backed by RocksDB for storage and atomicity.
+> Whilst we are fully validating that, the npm dist-tag for latest is set to latest version of Corestore 7, the previous major, to avoid too much disruption.
+> It will be updated to 11 in a few weeks.
+
 ### Usage
 A corestore instance can be constructed with a random-access-storage module, a function that returns a random-access-storage module given a path, or a string. If a string is specified, it will be assumed to be a path to a local storage directory:
 ```js
@@ -24,27 +29,17 @@ const core2 = store.get({ name: 'core-2' })
 ```
 
 ### API
-#### `const store = new Corestore(storage, opts = {})`
+#### `const store = new Corestore(storage)`
 Create a new Corestore instance.
 
 `storage` can be either a random-access-storage module, a string, or a function that takes a path and returns an random-access-storage instance.
 
-Opts include:
-```js
-{
-  inflightRange: null // Advanced option. Forwarded to the Hypercores created by corestore.get(...)
-}
-```
-
-#### `const core = store.get(key | { name: 'a-name', exclusive, ...hypercoreOpts})`
+#### `const core = store.get(key | { name: 'a-name', ...hypercoreOpts})`
 Loads a Hypercore, either by name (if the `name` option is provided), or from the provided key (if the first argument is a Buffer or String with hex/z32 key, or if the `key` options is set).
 
 If that Hypercore has previously been loaded, subsequent calls to `get` will return a new Hypercore session on the existing core.
 
-If you set the `exclusive` option and you are opening a writable session it will wait for all other exclusive writable to close before
-opening the Hypercore effectively meaning any op on the core will wait until its exclusive.
-
-All other options besides `name` and `key` and `exclusive` will be forwarded to the Hypercore constructor.
+All other options besides `name` and `key` will be forwarded to the Hypercore constructor.
 
 #### `const stream = store.replicate(optsOrStream)`
 Creates a replication stream that's capable of replicating all Hypercores that are managed by the Corestore, assuming the remote peer has the correct capabilities.
@@ -67,8 +62,11 @@ swarm.join(...)
 swarm.on('connection', (connection) => store.replicate(connection))
 ```
 
+#### `const storeB = storeA.session()`
+Create a new Corestore session. Closing a session will close all cores made from this session.
+
 #### `const store = store.namespace(name)`
-Create a new namespaced Corestore. Namespacing is useful if you're going to be sharing a single Corestore instance between many applications or components, as it prevents name collisions.
+Create a new namespaced Corestore session. Namespacing is useful if you're going to be sharing a single Corestore instance between many applications or components, as it prevents name collisions.
 
 Namespaces can be chained:
 ```js
@@ -78,32 +76,8 @@ const core1 = ns1.get({ name: 'main' }) // These will load different Hypercores
 const core2 = ns2.get({ name: 'main' })
 ```
 
-#### `const storeB = storeA.session(opts)`
-Create a new Corestore that shares resources with the original, like cache, cores, replication streams, and storage, while optionally resetting the namespace, overriding `primaryKey`.
-Useful when an application wants to accept an optional Corestore, but needs to maintain a predictable key derivation.
-
-`opts` are the same as the constructor options: 
-
-```js
-{
-  primaryKey, // Overrides the primaryKey for this session
-  namespace, // If set to null it will reset to the DEFAULT_NAMESPACE
-  detach: true, // By disabling this, closing the session will also close the store that created the session
-  inflightRange: null // Advanced option. Forwarded to the Hypercores created by `session.get(...)
-}
-```
-
 #### `await store.close()`
 Fully close this Corestore instance.
 
-#### `store.on('core-open', core)`
-Emitted when the first session for a core is opened.
-
-*Note: This core may close at any time, so treat it as a weak reference*
-
-#### `store.on('core-close', core)`
-Emitted when the last session for a core is closed.
-
 ### License
 MIT
-

example.mjs

@@ -0,0 +1,21 @@
+import Corestore from './index.js'
+
+const store = new Corestore('./store.db')
+
+const core = store.get({ name: 'yo' })
+// await core.close()
+
+const store2 = new Corestore('./store2.db')
+
+await core.ready()
+await core.append('yo')
+
+const clone = store2.get({ key: core.key })
+
+const stream = store.replicate(true)
+const stream2 = store2.replicate(false)
+
+stream.pipe(stream2).pipe(stream)
+
+await clone.ready()
+console.log(core, clone)