create turbo-static for compile time graph analysis (#8037)

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Closes TURBO-2877

Cargo.toml

@@ -4,6 +4,7 @@ resolver = "2"
 members = [
   "crates/node-file-trace",
   "crates/tower-uds",
+  "crates/turbo-static",
   "crates/turbo-tasks*",
   "crates/turbo-prehash",
   "crates/turbopack*",

crates/turbo-static/.gitignore

@@ -0,0 +1,2 @@
+call_resolver.bincode
+graph.cypherl

crates/turbo-static/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "turbo-static"
+version = "0.1.0"
+edition = "2021"
+license = "MPL-2.0"
+
+[dependencies]
+bincode = "1.3.3"
+clap = { workspace = true, features = ["derive"] }
+ctrlc = "3.4.4"
+ignore = "0.4.22"
+itertools.workspace = true
+lsp-server = "0.7.6"
+lsp-types = "0.95.1"
+proc-macro2 = { workspace = true, features = ["span-locations"] }
+serde = { workspace = true, features = ["derive"] }
+serde_json.workspace = true
+serde_path_to_error = "0.1.16"
+syn = { version = "2", features = ["parsing", "full", "visit", "extra-traits"] }
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+tracing.workspace = true
+walkdir = "2.5.0"
+
+[lints]
+workspace = true

crates/turbo-static/readme.md

@@ -0,0 +1,33 @@
+# Turbo Static
+
+Leverages rust-analyzer to build a complete view into the static dependency
+graph for your turbo tasks project.
+
+## How it works
+
+- find all occurences of #[turbo_tasks::function] across all the packages you
+  want to query
+- for each of the tasks we find, query rust analyzer to see which tasks call
+  them
+- apply some very basis control flow analysis to determine whether the call is
+  made 1 time, 0/1 times, or 0+ times, corresponding to direct calls,
+  conditionals, or for loops
+- produce a cypher file that can be loaded into a graph database to query the
+  static dependency graph
+
+## Usage
+
+This uses an in memory persisted database to cache rust-analyzer queries.
+To reset the cache, pass the `--reindex` flag. Running will produce a
+`graph.cypherl` file which can be loaded into any cypher-compatible database.
+
+```bash
+# pass in the root folders you want to analyze. the system will recursively
+# parse all rust code looking for turbo tasks functions
+cargo run --release -- ../../../turbo ../../../next.js
+# now you can load graph.cypherl into your database of choice, such as neo4j
+docker run \
+    --publish=7474:7474 --publish=7687:7687 \
+    --volume=$HOME/neo4j/data:/data \
+    neo4j
+```