Update docker-compose.yml template location and adapt package and scr…

…apemeagain-compose.py accordingly

MANIFEST.in

@@ -0,0 +1,3 @@
+include requirements.txt
+include scrapemeagain/dockerized/entrypoints/*.sh
+include scrapemeagain/dockerized/docker-compose.yml

README.md

@@ -85,7 +85,7 @@ python3 examples/examplescraper/main.py
 To simplify running integration tests with latest changes:
 
  * replace `image: dusanmadar/scrapemeagain:x.y.z` with `image: scp:latest`
- in the `docker-compose.yml` template
+ in the `scrapemeagain/dockerized/docker-compose.yml` template
 
  * and make sure to rebuild the image locally before running tests, e.g.
 ```

scripts/scrapemeagain-compose.py

@@ -9,12 +9,13 @@
 
     Example:
     $ cd ../
-    $ python3 scrapemeagain-compose.py -s $(pwd)/examples/examplescraper | docker-compose -f - up
-    $ python3 scrapemeagain-compose.py -s $(pwd)/examples/examplescraper -c tests.integration.fake_config | docker-compose -f - up
+    $ python3 scripts/scrapemeagain-compose.py -s $(pwd)/examples/examplescraper | docker-compose -f - up
+    $ python3 scripts/scrapemeagain-compose.py -s $(pwd)/examples/examplescraper -c tests.integration.fake_config | docker-compose -f - up
 """  # noqa
 
 
 import argparse
+import inspect
 import os
 import sys
 
@@ -72,7 +73,12 @@ def construct_compose_file(path, config=None):
         for id in range(1, Config.SCRAPERS_COUNT + 1)
     ]
 
-    template_dir = os.path.dirname(os.path.dirname(__file__))
+    # A dynamic way to get the path of `scrapemeagain.dockerized` package.
+    # Required because this file must be runnable both during development and
+    # anfter installing the package.
+    # Credists: https://stackoverflow.com/q/2419416/4183498.
+    dockerized_utils_module_path = inspect.getsourcefile(apply_scraper_config)
+    template_dir = os.path.dirname(dockerized_utils_module_path)
     with open(os.path.join(template_dir, "docker-compose.yml")) as f:
         template = Template(f.read())