move scrape to bin directory

Dockerfile

@@ -3,7 +3,7 @@ MAINTAINER Jørgen Sverre Lien Sellæg <jorgen@guut.org>
 
 ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
   PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser \
-  PATH="$PATH:/app"
+  PATH="$PATH:/app/bin"
 
 RUN apk add --no-cache \
   chromium \

bin/scrape

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+readonly BIN_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+readonly RUN_DIR=$(pwd)
+
 function usage {
   cat <<- EOF
   ./scrape [options] <page>
@@ -77,6 +80,10 @@ function scrape {
   node src/scrape.js "$@" || usage
 }
 
+cd "$BIN_DIR"/..
+
 check_dependencies \
   && parse_args "$@" \
   && scrape "$@"
+
+cd "$RUN_DIR"