Import bugfix

README.md

@@ -0,0 +1,52 @@
+# CellarioScheduler Database Switcher
+
+## Usage
+
+To run the switcher, execute the `.bat` file as an administrator.
+To preserve compatability with older verisons of CellarioScheduler and their default install locations,
+you must run with write access to `C:\Program Files\HighRes Biosolutions`.
+
+When running the tool for the first time, a config file (extension `.toml`) will be generated.
+Edit this file to add additional databases.
+The format of this file is outlined below.
+
+After you have added your databases to the config file, restart the tool and they should appear as buttons.
+Clicking a button will:
+
+1. Either alter the registry entry for the connection string (<=4.2) or alter `appsettings.Production.json` (>=4.3)
+to reflect your database settings.
+2. Create a symlink from the specified CellarioScheduler directory to `C:\Program Files\HighRes Biosolutions\Cellario`
+    - If a real install of CellarioScheduler already exists here, it is automatically renamed with a random suffix so it
+    will not be clobbered.
+3. Launches CellarioScheduler
+
+## Configuration
+
+A database entry has the following sections:
+
+### Entry Name
+This is the part in the square brackets.
+Whatever is entered here will appear in the UI.
+Spaces are not permitted, underscores and hyphens are permitted.
+
+### DatabaseUser
+This is the user login for the database.
+It should be verbatim what you would use to log in to your database.
+
+### DatabasePassword
+This is the password for the database.
+It is likely either `postgres` or `oracle`.
+
+### DatabaseType
+Either `postgres` or `oracle`
+
+### CellarioDirectory
+This is the absolute path to your installation directory for CellarioScheduler.
+This allows you to associate a particular database with a given installation of CS.
+The backslash characters `\` must be escaped with another backslash character `\`;
+see the example database if this is unclear.
+
+### Version
+This is the version of CellarioScheduler installed in `CellarioDirectory`.
+You do not need to enter the full version, only the major and minor version numbers (i.e. `4.1` is sufficient).
+This is only used to determine if the registry should be altered or if appsettings should be altered.

py-auto-cel-switch.bat

@@ -1,2 +1,4 @@
 @echo on
+
+cd %~dp0
 python %~dp0\src\py-auto-cel-switch.py

src/connection_strings.py

@@ -66,7 +66,7 @@ def set_conn_string_json(conn_string: str,
     else:
         proper_db_type = "Oracle"
 
-    app_settings["ConnectionStrings"] = conn_string
+    app_settings["ConnectionStrings"]["Cellario"] = conn_string
     app_settings["DatabaseType"] = proper_db_type
 
     with open(json_path, 'w') as f:

src/interface.py

@@ -1,4 +1,4 @@
-from tkinter import Tk
+from tkinter import Tk, Canvas, Scrollbar VERTICAL, LEFT, RIGHT, Y, BOTH
 from tkinter import ttk
 
 from instance import Instance, gen_function_for_instance
@@ -7,14 +7,30 @@ from settings import MainSettings, SortType
 
 def start_ui(instances: [Instance], settings):
     root = Tk()
-    frame = ttk.Frame(root, padding=50)
-    frame.grid()
-    ttk.Label(frame, text="Available Databases").grid(column=0, row=0)
 
     # Alphanumeric sorting
     if MainSettings.Sort == SortType.ALPHA:
         instances = list(sorted(instances))
 
+    canvas = Canvas(root)
+    scrollbar = Scrollbar(root, orient=VERTICAL, command=canvas.yview)
+    frame = ttk.Frame(canvas)
+
+    frame.bind(
+        "<Configure>",
+        lambda e: canvas.configure(
+            scrollregion=canvas.bbox("all")
+        )
+    )
+
+    canvas.create_window((0, 0), window=frame, anchor="nw")
+    canvas.configure(yscrollcommand=scrollbar.set)
+
+    canvas.pack(side=LEFT, fill=BOTH, expand=True)
+    scrollbar.pack(side=RIGHT, fill=Y)
+
+    ttk.Label(frame, text="Available Databases").grid(column=0, row=0)
+
     for row, instance in enumerate(instances):
         if instance.disable and not MainSettings.ShowAll:
             continue