Long Path Error in Windows

[shemogumbe]

Windows have a max file path character length of 260 characters.

Since SDKs are auto-generated and file paths follow OPENAPI paths, with nesting in most cases, the file path can grow into a path with more than the required 260 characters. e.g:

msgraph-sdk-python/msgraph/generated/communications/call_records/microsoft_graph_call_records_get_direct_routing_calls_with_from_date_time_with_to_date_time.py

msgraph-sdk-python/msgraph/generated/communications/call_records/microsoft_graph_call_records_get_pstn_calls_with_from_date_time_with_to_date_time.py

How do we go about this?

[shemogumbe]

Since parts of the SDK are auto-generated and paths are formed based on the OpenAPI tree node, which could be nested, some entities also have long names leading to many characters in the SDK.

1. Renaming/abbreviating file and folder names to shorten them - while this seems like a feasible solution, it can lead to path collissions as we will nolonger use fully qualified paths but short forms.

2. Enable long file paths in your developer machine:
   `

3. Open the Registry Editor by typing "regedit" in the Windows search bar and pressing Enter.

4. Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem.

5. Find the entry named LongPathsEnabled. If it does not exist, create a new DWORD value with this name.

6. Set the value of LongPathsEnabled to 1.

7. Close the Registry Editor and restart your system for the changes to take effect.
   `
   where corporate policy does not allow modifying the registry, liase wih your IT administrator to permit the change.

8. Download the SDK wheel fro pypy and do a custom build, ignoring the long paths especially if not using them.

9. In deployment environment for windows server, use a bash script similar to this to enable long file paths:

#!/bin/bash

# Enable long paths
# set the value of LongPathsEnabled to 1

REG_PATH="HKLM\\SYSTEM\\CurrentControlSet\\Control\\FileSystem"
KEY_NAME="LongPathsEnabled"

# Use reg.exe to add the LongPathsEnabled key with a value of 1
reg.exe add "$REG_PATH" /v "$KEY_NAME" /t REG_DWORD /d 1 /f

echo "Long file paths enabled."