Introduce frontend build system using npm, Parcel and TypeScript

The`dashboard` page is ported to the new frontend.

Author: Kobzol

.dockerignore

@@ -2,6 +2,7 @@
 !/database
 !/intern
 !/site
+/site/frontend/node_modules
 !/collector
 !/Cargo.toml
 !/Cargo.lock

Dockerfile

@@ -16,12 +16,19 @@ RUN apt-get update -y && \
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
     --default-toolchain stable --profile minimal -y
 
+RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash - && \
+  apt-get install -y nodejs
+
 COPY ./Cargo.lock ./Cargo.lock
 COPY ./Cargo.toml ./Cargo.toml
-COPY ./site ./site
 COPY ./collector ./collector
 COPY ./database ./database
 COPY ./intern ./intern
+COPY ./site ./site
+
+RUN cd site/frontend && npm ci
+RUN cd site/frontend && npm run check
+RUN cd site/frontend && npm run build
 
 RUN bash -c 'source $HOME/.cargo/env && cargo build --release -p site'
 RUN bash -c 'source $HOME/.cargo/env && cargo build --release --bin postgres-to-sqlite'

site/.gitignore

@@ -1,2 +1,4 @@
 /data
 /target
+frontend/node_modules
+frontend/dist/**/

site/frontend/README.md

@@ -0,0 +1,19 @@
+# `rustc-perf` site frontend
+This directory contains code for the `rustc-perf` website frontend.
+
+## Build
+- Install dependencies
+   ```console
+   $ npm install
+   ```
+- Development build - dynamically reloads after each change.
+    ```console
+    $ npm run watch
+    ```
+- Production build - build optimized and minimized files.
+    ```console
+    $ npm run build
+    ```
+
+The files are packaged into the `dist` directory, from which they are embedded into the `rustc-perf`
+binary.