Change to a more standard way of specifying the eslint version

Tested-by: Travis

.travis.yml

@@ -5,7 +5,7 @@ python:
 dist: xenial
 before_script:
   - nvm install
-  - npm install -g [email protected]
+  - npm install
 script: make check
 after_success:
   - "curl -o /tmp/travis-automerge https://raw.githubusercontent.com/vmiklos/osm-gimmisn/master/tools/travis-automerge"

INSTALL.adoc

@@ -35,10 +35,12 @@ python3 -m venv osm-gimmisn-env
 
 This makes sure that you will have exactly the same version of the depdendencies as everyone else.
 
-- Install Python dependencies:
+- Install the dependencies (Python, node and eslint):
 
 ----
 pip install -r requirements.txt
+nvm install
+npm install
 ----
 
 - Build the generated code and data:

Makefile

@@ -114,7 +114,7 @@ check-mypy: $(patsubst %.py,%.mypy,$(PYTHON_OBJECTS))
 	$(QUIET_PYLINT)env PYTHONPATH=. pylint $< && touch $@
 
 %.eslint : %.js Makefile .eslintrc
-	$(QUIET_ESLINT)eslint $< && touch $@
+	$(QUIET_ESLINT)node_modules/eslint/bin/eslint.js $< && touch $@
 
 %.mypy: %.py Makefile
 	$(QUIET_MYPY)mypy --python-version 3.6 --strict --no-error-summary $< && touch $@

package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "eslint": "7.0.0"
+  }
+}