chore(ci): add makefile target for typos checker

This target would perform a typos check with some exceptions to ensure
correct spelling throughout the codebase

.gitignore

@@ -27,7 +27,7 @@ backends/tfhe-cuda-backend/cuda/cmake-build-debug/
 # WASM tests
 tfhe/web_wasm_parallel_tests/server.PID
 venv/
-web_test_runners/
+web-test-runner/
 
 # Dir used for backward compatibility test data
 tfhe/tfhe-backward-compat-data/

Makefile

@@ -148,6 +148,12 @@ install_tfhe_lints:
 	(cd utils/cargo-tfhe-lints-inner && cargo install --path .) && \
 	cd utils/cargo-tfhe-lints && cargo install --path .
 
+.PHONY: install_typos_checker # Install typos checker
+install_typos_checker: install_rs_build_toolchain
+	@typos --version > /dev/null 2>&1 || \
+	cargo $(CARGO_RS_BUILD_TOOLCHAIN) install typos-cli || \
+	( echo "Unable to install typos-cli, unknown error." && exit 1 )
+
 .PHONY: setup_venv # Setup Python virtualenv for wasm tests
 setup_venv:
 	python3 -m venv venv
@@ -240,6 +246,10 @@ check_fmt_js: check_nvm_installed
 	nvm use $(NODE_VERSION) && \
 	$(MAKE) -C tfhe/web_wasm_parallel_tests check_fmt
 
+.PHONY: check_typos # Check for typos in codebase
+check_typos: install_typos_checker
+	@typos && echo "No typos found"
+
 .PHONY: clippy_gpu # Run clippy lints on tfhe with "gpu" enabled
 clippy_gpu: install_rs_check_toolchain
 	RUSTFLAGS="$(RUSTFLAGS)" cargo "$(CARGO_RS_CHECK_TOOLCHAIN)" clippy \
@@ -1178,14 +1188,14 @@ sha256_bool: install_rs_check_toolchain
 	--features=$(TARGET_ARCH_FEATURE),boolean
 
 .PHONY: pcc # pcc stands for pre commit checks (except GPU)
-pcc: no_tfhe_typo no_dbg_log check_fmt lint_doc check_md_docs_are_tested check_intra_md_links \
+pcc: no_tfhe_typo no_dbg_log check_fmt check_typos lint_doc check_md_docs_are_tested check_intra_md_links \
 clippy_all tfhe_lints check_compile_tests
 
 .PHONY: pcc_gpu # pcc stands for pre commit checks for GPU compilation
 pcc_gpu: clippy_gpu clippy_cuda_backend check_compile_tests_benches_gpu
 
 .PHONY: fpcc # pcc stands for pre commit checks, the f stands for fast
-fpcc: no_tfhe_typo no_dbg_log check_fmt lint_doc check_md_docs_are_tested clippy_fast \
+fpcc: no_tfhe_typo no_dbg_log check_fmt check_typos lint_doc check_md_docs_are_tested clippy_fast \
 check_compile_tests
 
 .PHONY: conformance # Automatically fix problems that can be fixed

_typos.toml

@@ -0,0 +1,14 @@
+[default]
+extend-ignore-identifiers-re = [
+    # Related to serialized object
+    "ser.*",
+    # Used when dumping tfhe-rs parameters set into Sage format
+    "ND.*",
+    # Related to FHE strings example handling "banana"
+    "ba",
+    ".*_ba",
+    # Example with string replacing "hello" with "herlo"
+    "herlo",
+    # Example in trivium
+    "C9217BA0D762ACA1"
+]