fix: docker/entrypoint.sh (#38)

Close #37

Dockerfile

@@ -1,11 +1,18 @@
 FROM node:current-alpine
 
 ENV REVIEWDOG_VERSION=v0.9.17
+
 RUN wget -O - -q https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh| sh -s -- -b /usr/local/bin/ ${REVIEWDOG_VERSION}
 RUN apk --update add git && \
     rm -rf /var/lib/apt/lists/* && \
     rm /var/cache/apk/*
 
-COPY entrypoint.sh /entrypoint.sh
+WORKDIR /
+ENV PATH $PATH:/node_modules/.bin
+COPY package.json package-lock.json /
+RUN npm ci
+
+COPY entrypoint.sh /
+RUN chmod +x /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -4,13 +4,9 @@ cd "$GITHUB_WORKSPACE"
 
 export REVIEWDOG_GITHUB_API_TOKEN="${INPUT_GITHUB_TOKEN}"
 
-if [ ! -f "$(npm bin)/textlint" ]; then
-  npm install
-fi
+textlint --version
 
-$(npm bin)/textlint --version
-
-$(npm bin)/textlint -f checkstyle "${INPUT_TEXTLINT_FLAGS:-'.'}" \
-  | reviewdog -f=checkstyle -name="textlint"                     \
-              -reporter="${INPUT_REPORTER:-'github-pr-check'}"   \
+textlint -f checkstyle "${INPUT_TEXTLINT_FLAGS:-'.'}"          \
+  | reviewdog -f=checkstyle -name="textlint"                   \
+              -reporter="${INPUT_REPORTER:-'github-pr-check'}" \
               -level="${INPUT_LEVEL:-'error'}"