Add lib-dep makefile target (#701)

Author: abhinavsingh

Makefile

@@ -18,7 +18,7 @@ CA_SIGNING_KEY_FILE_PATH := ca-signing-key.pem
 .PHONY: all https-certificates sign-https-certificates ca-certificates
 .PHONY: lib-version lib-clean lib-test lib-package lib-coverage lib-lint lib-pytest
 .PHONY: lib-release-test lib-release lib-profile
-.PHONY: lib-flake8, lib-mypy
+.PHONY: lib-dep, lib-flake8, lib-mypy
 .PHONY: container container-run container-release
 .PHONY: devtools dashboard dashboard-clean
 
@@ -81,6 +81,13 @@ lib-clean:
 	rm -rf .pytest_cache
 	rm -rf .hypothesis
 
+lib-dep:
+	pip install \
+		-r requirements.txt \
+		-r requirements-testing.txt \
+		-r requirements-release.txt \
+		-r requirements-tunnel.txt
+
 lib-lint:
 	python -m tox -e lint
 

README.md

@@ -314,10 +314,10 @@ To start `proxy.py` from source code follow these instructions:
 - Install deps
 
   ```console
-  ❯ pip install -rrequirements.txt -rrequirements-testing.txt -rrequirements-tunnel.txt
+  ❯ make lib-dep
   ```
 
-- Run tests
+- Optionally, run tests
 
   ```console
   ❯ make