add 'npm' and 'npm-update' make targets and lockfile (go-gitea#7246)

* add 'npm' and 'npm-update' make targets and lockfile

- `make npm` installs and updates node_modules, triggered automatically
   on `make css` and `make js` as it completes reasonably fast and
   ensures consistent modules.
- `make npm-update` updates all dependencies to their latest version,
   regenerates `node_modules` from scratch and updates
   `package-lock.json`. It uses npm modules `updates` written by yours
   truly to find the latest version of each dependency.

* add suggested make dependencies

* remove package-lock.json during npm-update

* regenerate package-lock.json

.drone.yml

@@ -52,7 +52,6 @@ pipeline:
     image: webhippie/nodejs:latest
     pull: true
     commands:
-      - npm install
       - make css
       - make js
     when:

.gitignore

@@ -67,7 +67,6 @@ coverage.all
 /node_modules
 /modules/indexer/issues/indexers
 routers/repo/authorized_keys
-/package-lock.json
 /yarn.lock
 
 # Snapcraft

.npmrc

@@ -1,2 +1 @@
-package-lock=false
 save-exact=true

Makefile

@@ -366,29 +366,32 @@ release-compress:
 	fi
 	cd $(DIST)/release/; for file in `find . -type f -name "*"`; do echo "compressing $${file}" && gxz -k -9 $${file}; done;
 
-.PHONY: js
-js:
-	@if ([ ! -d "$(PWD)/node_modules" ]); then \
-		echo "node_modules directory is absent, please run 'npm install' first"; \
+npm-check:
+	@hash npm > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		echo "Please install Node.js 8.x or greater with npm"; \
 		exit 1; \
 	fi;
 	@hash npx > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
-		echo "Please install npm version 5.2+"; \
+		echo "Please install Node.js 8.x or greater with npm"; \
 		exit 1; \
 	fi;
+
+.PHONY: npm
+npm: npm-check
+	npm install --no-save
+
+.PHONY: npm-update
+npm-update: npm-check
+	npx updates -cu
+	rm -rf node_modules package-lock.json
+	npm install --package-lock
+
+.PHONY: js
+js: npm
 	npx eslint public/js
 
 .PHONY: css
-css:
-	@if ([ ! -d "$(PWD)/node_modules" ]); then \
-		echo "node_modules directory is absent, please run 'npm install' first"; \
-		exit 1; \
-	fi;
-	@hash npx > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
-		echo "Please install npm version 5.2+"; \
-		exit 1; \
-	fi;
-
+css: npm
 	npx lesshint public/less/
 	npx lessc --clean-css="--s0 -b" public/less/index.less public/css/index.css
 	$(foreach file, $(filter-out public/less/themes/_base.less, $(wildcard public/less/themes/*)),npx lessc --clean-css="--s0 -b" public/less/themes/$(notdir $(file)) > public/css/theme-$(notdir $(call strip-suffix,$(file))).css;)

docs/content/doc/advanced/hacking-on-gitea.en-us.md

@@ -138,14 +138,7 @@ make vet lint misspell-check
 
 ### Updating CSS
 
-To generate the CSS, you will need [Node.js](https://nodejs.org/) 8.0 or greater and the build dependencies:
-
-```bash
-npm install
-```
-
-At present we use [less](http://lesscss.org/) and [postcss](https://postcss.org) to generate our CSS. Do
-**not** edit the files in `public/css` directly, as they are generated from `lessc` from the files in `public/less`.
+To generate the CSS, you will need [Node.js](https://nodejs.org/) 8.0 or greater with npm. At present we use [less](http://lesscss.org/) and [postcss](https://postcss.org) to generate our CSS. Do **not** edit the files in `public/css` directly, as they are generated from `lessc` from the files in `public/less`.
 
 Edit files in `public/less`, run the linter, regenerate the CSS and commit all changed files:
 
@@ -155,13 +148,7 @@ make css
 
 ### Updating JS
 
-To run the JavaScript linter you will need [Node.js](https://nodejs.org/) 8.0 or greater and the build dependencies:
-
-```bash
-npm install
-```
-
-Edit files in `public/js` and run the linter:
+To run the JavaScript linter you will need [Node.js](https://nodejs.org/) 8.0 or greater with npm. Edit files in `public/js` and run the linter:
 
 ```bash
 make js
@@ -250,7 +237,7 @@ TAGS="bindata sqlite sqlite_unlock_notify" make generate build test-sqlite
 ```
 
 will run the integration tests in an sqlite environment. Other database tests
-are available but may need adjustment to the local environment. 
+are available but may need adjustment to the local environment.
 
 Look at
 [`integrations/README.md`](https://github.com/go-gitea/gitea/blob/master/integrations/README.md)