Use pre-commit

[pre-commit](https://pre-commit.com/) automatically runs tools like
linters and fixers to make development easier. This change adds a simple
pre-commit config file with an example trailing whitespace fixer and
applies it to the existing project.

Additionally, don't ignore the lib directory (an error introduced in #8).

.gitignore

@@ -26,7 +26,8 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
+# pyShelf uses its own `lib` directory, don't ignore it.
+# lib/
 lib64/
 parts/
 sdist/

.pre-commit-config.yaml

@@ -0,0 +1,12 @@
+repos:
+  # Meta housekeeping to keep pre-commit operating correctly
+  - repo: meta
+    hooks:
+      - id: check-hooks-apply
+      - id: check-useless-excludes
+
+  # General housekeeping and auto-fixers
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v1.3.0
+    hooks:
+      - id: trailing-whitespace

README.md

@@ -4,15 +4,22 @@ A simple terminal based ebook server
 Frustrated with Calibre being my only option for hosting my eBook collection, I have decided to spin up my own.
 
 Calibre is a great organizational tool for your books, however not having a terminal based option for running and maintaining
-a server is cumbersome when running on a headless server. 
+a server is cumbersome when running on a headless server.
 Calibre does have a console based server solution, However there is currently no way to create, and manage your library in a headless enviroment.
 
 Thus I am creating pyShelf and I hope to be able to provide all the functionality required to organize and host all your ebooks.
 
 I am open to and hoping for community help in the design and execution of this program.
+
+## Development
+pyShelf uses [`pre-commit`](https://pre-commit.com/) to automate some tasks.
+Before developing, run `pre-commit install`.
+See the [documentation](https://pre-commit.com/) for more information.
+
 ## Configuration
 All configuration is done in config.py.
 The only currently required configuration is to set book_path to the location of your books.
+
 ## Current Features
 Currently pyShelf will recursively scan your collection, extract and store some metadata in the sqlite database.
 The basic template system is in place, as well as a template mockup. This can be seen hosted on port 8000
@@ -21,7 +28,7 @@ The basic template system is in place, as well as a template mockup. This can be
 * HTML Frontend for file transfers
 * HTML Backend for catalogue maintenance
 * Terminal Backend for catalogue maintenance
-* Calculate page count from total characters 
+* Calculate page count from total characters
   * (Thanks to @Fireblend for the idea) https://github.com/th3r00t/pyShelf/issues/3
 * Move towards sqlAlchemy and enable user to specify desired storage system
   * (Thanks to Sarcism) over on r/opensource for this idea!

lib/pyShelf.py

@@ -111,7 +111,7 @@ class BookDisplay:
 
 class BookServer:
     """
-    HTTP server functions required to display e-books    
+    HTTP server functions required to display e-books
     """
 
     def __init__(self):

static/css/main.css

@@ -25,7 +25,7 @@ body{
     font-size: 25px;
     text-align: start;
 }
-.shadow{ 
+.shadow{
     text-shadow: #4c5c68 -5px 3px 5px;
 }
 .app_subhdr{
@@ -61,7 +61,7 @@ body{
     grid-area: right_col
 }
 .python_logo{
-    
+
 }
 #python_logo{
     height: 50px;