Use lib crates from crates.io

See lib/README.md for justification

Cargo.toml

@@ -35,6 +35,10 @@ debug = 0
 # chalk-ir = { path = "../chalk/chalk-ir" }
 # chalk-recursive = { path = "../chalk/chalk-recursive" }
 # chalk-derive = { path = "../chalk/chalk-derive" }
+# line-index = { path = "lib/line-index" }
+# la-arena = { path = "lib/la-arena" }
+# lsp-server = { path = "lib/lsp-server" }
+
 
 # ungrammar = { path = "../ungrammar" }
 
@@ -76,10 +80,10 @@ tt = { path = "./crates/tt", version = "0.0.0" }
 vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" }
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 
-# In-tree crates that are published separately and follow semver.
-line-index = { version = "0.1.0-pre.1", path = "lib/line-index" }
-la-arena = { version = "0.3.1", path = "lib/la-arena" }
-lsp-server = { version = "0.7.1", path = "lib/lsp-server" }
+# In-tree crates that are published separately and follow semver. See lib/README.md
+line-index = { version = "0.1.0-pre.1" }
+la-arena = { version = "0.3.1" }
+lsp-server = { version = "0.7.1" }
 
 # non-local crates
 smallvec = { version = "1.10.0", features = [

lib/README.md

@@ -3,3 +3,12 @@
 Crates in this directory are published to [crates.io](https://crates.io) and obey semver.
 
 They _could_ live in a separate repo, but we want to experiment with a monorepo setup.
+
+We use these crates from crates.io, not the local copies because we want to ensure that
+rust-analyzer works with the versions that are published. This means if you add a new API to these
+crates, you need to release a new version to crates.io before you can use that API in rust-analyzer.
+
+To release new versions of these packages, change their version in Cargo.toml. Once your PR is merged into master a workflow will automatically publish the new version to crates.io.
+
+While prototyping, the local versions can be used by uncommenting the relevant lines in the
+`[patch.'crates-io']` section in Cargo.toml