From 9aa7dc977719216ccd6f21dbb98bee533df5e27c Mon Sep 17 00:00:00 2001
From: Louis Deconinck <louis.dck@gmail.com>
Date: Sat, 12 Sep 2026 17:15:50 +0200
Subject: [PATCH] chore(core): remove unused dashmap dependency

diskern-core declared dashmap but never references it: no DashMap
import or use exists anywhere in crates/ or app/. The dependency is
left over from an earlier plan for the parallel walk, which ended up
with jwalk collecting into a Vec and rayon doing the hashing.

Drop the line from crates/diskern-core/Cargo.toml and the entry from
the root workspace table. Cargo.lock sheds dashmap 6.2.1 plus the
hashbrown 0.14.5 copy that only dashmap used, trimming build time
and audit surface for a crate the engine never links.

cargo clippy -p diskern-core -p diskern-cli --all-targets -- -D warnings
and cargo test -p diskern-core -p diskern-cli stay green.

Closes #86
---
 Cargo.lock                     | 21 ---------------------
 Cargo.toml                     |  1 -
 crates/diskern-core/Cargo.toml |  1 -
 3 files changed, 23 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index f8bfe2f..9c6ab60 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -705,20 +705,6 @@ dependencies = [
  "syn 2.0.119",
 ]
 
-[[package]]
-name = "dashmap"
-version = "6.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6361d5c062261c78a176addb82d4c821ae42bed6089de0e12603cd25de2059c"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
- "hashbrown 0.14.5",
- "lock_api",
- "once_cell",
- "parking_lot_core",
-]
-
 [[package]]
 name = "dbus"
 version = "0.9.12"
@@ -864,7 +850,6 @@ name = "diskern-core"
 version = "0.3.0"
 dependencies = [
  "blake3",
- "dashmap",
  "globset",
  "jwalk",
  "petgraph",
@@ -1535,12 +1520,6 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
-[[package]]
-name = "hashbrown"
-version = "0.14.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
-
 [[package]]
 name = "hashbrown"
 version = "0.15.5"
diff --git a/Cargo.toml b/Cargo.toml
index f053995..bd6f669 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,6 @@ rayon = "1"
 
 # Core data structures
 petgraph = "0.8"
-dashmap = "6"
 
 # Path matching for the rules database
 globset = "0.4"
diff --git a/crates/diskern-core/Cargo.toml b/crates/diskern-core/Cargo.toml
index 4076c91..470cdd1 100644
--- a/crates/diskern-core/Cargo.toml
+++ b/crates/diskern-core/Cargo.toml
@@ -21,7 +21,6 @@ blake3.workspace = true
 jwalk.workspace = true
 rayon.workspace = true
 petgraph.workspace = true
-dashmap.workspace = true
 globset.workspace = true
 
 [dev-dependencies]