build: add git pre-commit hook

Signed-off-by: Tiago Castro <[email protected]>

.gitignore

@@ -5,3 +5,4 @@
 /.vagrant
 .idea
 .pregenerated
+/Cargo.lock

.pre-commit-config.yaml

@@ -0,0 +1,33 @@
+repos:
+-   repo: https://github.com/nix-community/nixpkgs-fmt
+    rev: v1.2.0
+    hooks:
+    -   id: nixpkgs-fmt
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+    -   id: trailing-whitespace
+        exclude_types: [diff]
+-   repo: local
+    hooks:
+    -   id: rust-style
+        name: Rust style
+        description: Check Rust code style on files included in the commit.
+        entry: ./scripts/rust-style.sh
+        pass_filenames: false
+        types: [file, rust]
+        language: system
+    -   id: rust-lint
+        name: Rust lint
+        description: Run Rust linter on files included in the commit.
+        entry: ./scripts/rust-linter.sh
+        pass_filenames: false
+        types: [file, rust]
+        language: system
+    -   id: commit-lint
+        name: Commit Lint
+        description: Runs commitlint against the commit message.
+        language: system
+        entry: bash -c 'nix-shell --pure --run "cat $1 | grep -v '^#' | commitlint"'
+        args: [$1]
+        stages: [commit-msg]

.rustfmt.toml

@@ -0,0 +1,15 @@
+# changed from 100 to 80
+max_width = 80
+# default is false
+wrap_comments = true
+comment_width = 80
+# was true
+struct_lit_single_line = false
+#changed from Mixed
+imports_layout = "HorizontalVertical"
+# changed from Preserve (merge_imports = false)
+imports_granularity="Crate"
+#default false
+spaces_around_ranges = true
+# was 2015
+edition = "2018"

shell.nix

@@ -40,8 +40,11 @@ mkShell {
     udev
     utillinux
     yasm
+    commitlint
   ] ++ (if (nospdk) then [ spdk.buildInputs ] else [ spdk ]);
 
+  NODE_PATH = "${nodePackages."@commitlint/config-conventional"}/lib/node_modules";
+
   LIBCLANG_PATH = "${llvmPackages.libclang.lib}/lib";
   SPDK_PATH = if nospdk then null else "${spdk}";
   FIO_SPDK = if nospdk then null else "${spdk}/fio/spdk_nvme";