add ability to set up config and caching

EVSVesuvio/config/vesuvio.user.properties

@@ -1 +1,3 @@
-# properties that suit your particular installation.
+# properties that suit your particular installation.
+caching.location =
+caching.experiment =

EVSVesuvio/scripts/__init__.py

@@ -1,20 +1,76 @@
 """Package defining top-level application
 and entry points.
 """
+import argparse
 import os
 from shutil import copyfile
 
+VESUVIO_CONFIG_FILE = "vesuvio.user.properties"
+
 
 def main():
-    make_config_dir()
+    parser = __set_up_parser()
+    args = parser.parse_args()
+    config_dir = os.path.join(os.path.expanduser("~"), '.mvesuvio')
+    cache_dir = config_dir if not args.set_cache else args.set_cache
+    experiment = "default" if not args.set_experiment else args.set_experiment
 
+    if __setup_config_dir(config_dir):
+        __set_config_vars(config_dir, {'caching.location': cache_dir,
+                                       'caching.experiment': experiment})
+    __setup_expr_dir(cache_dir, experiment)
 
-def make_config_dir():
-    config_dir = os.path.join(os.path.expanduser("~"), '.mvesuvio')
-    if not os.path.isdir(config_dir):
-        os.mkdir(config_dir)
-        copyfile('EVSVesuvio/config/vesuvio.user.properties', f'{config_dir}/vesuvio.user.properties')
+
+def __set_up_parser():
+    parser = argparse.ArgumentParser(description="Package to analyse Vesuvio instrument data")
+    parser.add_argument("--set-cache", "-c", help="set the cache directory", default="", type=str)
+    parser.add_argument("--set-experiment", "-e", help="set the current experiment", default="", type=str)
+    return parser
+
+
+def __setup_config_dir(config_dir):
+    success = __mk_dir('config', config_dir)
+    if success:
+        copyfile('EVSVesuvio/config/vesuvio.user.properties', f'{config_dir}/{VESUVIO_CONFIG_FILE}')
+    return success
+
+
+def __setup_expr_dir(cache_dir, experiment):
+    expr_path = os.path.join(cache_dir, "experiments", experiment)
+    __mk_dir('experiment', expr_path)
+
+
+def __mk_dir(type, path):
+    success = False
+    if not os.path.isdir(path):
+        try:
+            os.makedirs(path)
+            success = True
+        except:
+            print(f'Unable to make {type} directory at location: {path}')
+    return success
+
+
+def __set_config_vars(config_dir, var_dict):
+    file_path = f'{config_dir}/{VESUVIO_CONFIG_FILE}'
+    with open(file_path, 'r') as file:
+        lines = file.readlines()
+
+    updated_lines = []
+    for line in lines:
+        match = False
+        for var in var_dict:
+            if line.startswith(var):
+                updated_lines.append(f'{var}={var_dict[var]}\n')
+                match = True
+                break
+        if not match:
+            updated_lines.append(line)
+
+    with open(file_path, 'w') as file:
+        file.writelines(updated_lines)
 
 
 if __name__ == '__main__':
+    print("test")
     main()