Drop yarn

Signed-off-by: Yukai Huang <yukaihuangtw@gmail.com>

.gitignore

@@ -1,5 +1,4 @@
 node_modules
-package-lock.json
 composer.phar
 composer.lock
 .env.*.php

.travis.yml

@@ -7,7 +7,7 @@ node_js:
   - "12"
 
 dist: xenial
-cache: yarn
+cache: npm
 
 matrix:
   fast_finish: true
@@ -19,8 +19,8 @@ matrix:
     - node_js: "12"
 
 script:
-  - yarn test:ci
-  - yarn build
+  - npm run test:ci
+  - npm run build
 
 jobs:
   include:

bin/setup

@@ -8,12 +8,11 @@ if [ -d .git ]; then
   cd "$(git rev-parse --show-toplevel)"
 fi
 
-if ! type yarn > /dev/null
+if ! type npm > /dev/null
 then
   cat << EOF
-yarn is not installed, please install Node.js, npm and yarn.
+npm is not installed, please install Node.js and npm.
 Read more on Node.js official website: https://nodejs.org
-And for yarn package manager at: https://yarnpkg.com/en/
 Setup will not be run
 EOF
   exit 0
@@ -29,14 +28,13 @@ if [ ! -f .sequelizerc ]; then
 fi
 
 echo "install packages"
-yarn install --pure-lockfile
-yarn install --production=false --pure-lockfile
+npm install
 
 cat << EOF
 
 
 Edit the following config file to setup CodiMD server and client.
-Read more info at https://github.com/hackmdio/codimd#configuration-files
+Read more info at https://hackmd.io/c/codimd-documentation/%2Fs%2Fcodimd-configuration
 
 * config.json           -- CodiMD config
 * .sequelizerc          -- db config

deployments/Dockerfile

@@ -5,14 +5,13 @@ COPY --chown=hackmd:hackmd . .
 RUN set -xe && \
     git reset --hard && \
     git clean -fx && \
-    yarn install && \
-    yarn build && \
-    yarn install --production=true && \
+    npm install && \
+    npm run build && \
     cp ./deployments/docker-entrypoint.sh ./ && \
     cp .sequelizerc.example .sequelizerc && \
     rm -rf .git .gitignore .travis.yml .dockerignore .editorconfig .babelrc .mailmap .sequelizerc.example \
         test docs contribute \
-        yarn.lock webpack.prod.js webpack.htmlexport.js webpack.dev.js webpack.common.js \
+        package-lock.json webpack.prod.js webpack.htmlexport.js webpack.dev.js webpack.common.js \
         config.json.example README.md CONTRIBUTING.md AUTHORS
 
 FROM hackmdio/runtime:1.0.6