add workflow scripts for filtering and checking easystacks

.github/workflows/scripts/filter_git_diff.py

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+# At the moment this script will only filter out the easystack files
+# Next step could be to filter out other subpaths 
+# by using the GITHUB action environment variables and argsparse.
+
+# Can also distiguish between modified, added, ... files
+# That information is in the string that is generated by git diff
+# For filtering easystacks this was however not necessary 
+# since we want to check both added and modified files
+
+import os
+
+diff = os.getenv('CHANGED')
+env_file = os.getenv('GITHUB_ENV')
+
+diff_list = diff.split('\n')
+
+diff_filter_path = 'easystacks'
+
+diff_filtered = ''
+
+for line in diff_list:
+    status = line.split('\t')[0]
+    file = line.split('\t')[1] 
+    if file.startswith(diff_filter_path):
+        # Ignoring the status assigned to the file
+        diff_filtered += file + ' '
+
+if diff_filtered != '':
+    # Todo: Can only handle 1 level paths now
+    # I we want to pass multi-level paths this will need to be updated
+    # Name of the env_var can change based on the file or path
+    env_var = 'CHANGED_' + diff_filter_path.upper()
+    set_var = env_var + "=" + diff_filtered
+
+    # This adds the environment variable to the github action environment
+    with open(env_file, 'a') as file:
+        file.write(set_var)

.github/workflows/scripts/parse_missing-installations-output.py

@@ -0,0 +1,23 @@
+import os
+import re
+
+missing = os.environ['missing']
+missing = missing.split('\n')
+missing_cuda = []
+missing_cpu = []
+for ec in missing:
+    if re.search('CUDA', ec):
+        missing_cuda.append(ec)
+    else:
+        missing_cpu.append(ec)
+if len(missing_cpu) != 0 and len(missing_cuda) != 0:
+    print(f'Please open a seperate pr for these dependencies: {missing_cpu}')
+    os.write(2, b'Error: CPU dependencies for CUDA build must be build in a seperate pr')
+    exit(1)
+elif len(missing_cuda) != 0:
+    # TODO: Make this set the accelorator label?
+    print(f'Have fun installing the following gpu builds: {missing_cuda}')
+elif len(missing_cpu) != 0:
+    print(f'Have fun installing the following gpu builds: {missing_cpu}')
+else:
+    print('no missing modules')