int128/idea-fsnotifier-wsl

IntelliJ IDEA fsnotifier for WSL (Windows Subsystem for Linux)

IntelliJ IDEA fsnotifier for WSL

IntelliJ IDEA for Linux works on WSL (Windows Subsystem for Linux; Bash for Windows) as well, but the file watching feature is not available for now. It shows the following warning on startup:

⚠️ External file changes sync may be slow. File watcher gave up to operate.

This project provides fsnotifier module that allows the file watching feature works on WSL. External file changes will immediately appear.

How to use

Download the latest release and install it into $IDEA/bin.

ls -la fsnotifier64
cp -av fsnotifier64 ~/bin/idea-IC-*/bin/

Run IDEA and check if the warning does not appear.

Build from source

Make sure you have a C compiler.

sudo apt install build-essential
cc -v

Make and install it into $IDEA/bin.

./make.sh
ls -la fsnotifier64
cp -av fsnotifier64 ~/bin/idea-IC-*/bin/

How it works

Currently fsnotifier64 fails on WSL, because WSL does not provide /proc/sys/fs/inotify/max_user_watches and /etc/mtab.

This skips checking /proc/sys/fs/inotify/max_user_watches. Also it reads from /proc/mounts instead of /etc/mtab. See commits for more.

Contribution

This is based on JetBrains/intellij-community/native/fsNotifier/linux.

Feel free to open an issue or pull request. Original and this are public under Apache License 2.0.

idea-fsnotifier-wsl's Issues

Cannot get it working with PyCharm (XServer)

I have followed the instructions perfectly unless I understand something wrong with regards to the process. I am running PyCharm from within WSL via XServer. Problem still persists. Could it be that the $IDEA/bin path I am supplying is wrong?

Currently I have only PyCharm installed from JeBrains within WSL and what I do is download the binary make.sh in the download directory and copy the generated fsnotifier64 to <PycharmInstallationDirectory>/bin. Could you maybe help me out?

fsnotifier causes erroneusly restart of Flask application

Flask application in debug mode constantly restarted because of environment files not belonging to the project:

 * Restarting with watchdog (inotify)
 * Debugger is active!
 * Debugger PIN: 106-816-122
 * Detected change in '/home/youjin/miniconda3/envs/webmongo/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing/core.py', reloading
 * Detected change in '/home/youjin/miniconda3/envs/webmongo/lib/python3.7/site-packages/pkg_resources/_vendor/packaging/markers.py', reloading
 * Detected change in '/home/youjin/miniconda3/envs/webmongo/lib/python3.7/site-packages/setuptools/_vendor/pyparsing/core.py', reloading
 * Detected change in '/home/youjin/miniconda3/envs/webmongo/lib/python3.7/site-packages/setuptools/_vendor/packaging/markers.py', reloading

No such problem on pure Linux with same environment

table errors

idea-fsnotifier-wsl is working great when started on a clean project, but when I build my projects, I start getting syslog errors like:
fsnotifier[3729]: table error: corruption at 1025:/home/mcraig/projects/foo/.../target/streams/compile/managedClasspath / 1:/home/mcraig/projects/foo)
fsnotifier[7887]: table error: corruption at 1025:/opt/jdk/jdk1.8.0_131/jre/lib/ext/zipfs.jar / 1:/home/mcraig/projects/bar)
and then, in IntelliJ's Event Log:
External file changes sync may be slow: File watcher failed to start
and in ~/.IntelliJIdea2017.2/system/log/idea.log:

2017-12-18 22:46:20,402 [ 109620]   INFO - pl.local.NativeFileWatcherImpl - Starting file watcher:
/home/mcraig/intellij/idea-IU-172.4574.11/bin/fsnotifier64
2017-12-18 22:46:21,006 [ 110224]   WARN - pl.local.NativeFileWatcherImpl - Watcher terminated with
 exit code 3
2017-12-18 22:46:21,006 [ 110224]   WARN - api.vfs.impl.local.FileWatcher - File watcher failed to
start

(Projects are Scala/SBT, so compilation behavior ought to be more or less similar to other JVM/byte code projects, AFAIU.)

Please let me know if I can be of any additional help in debugging this issue. Really appreciate the project. Thanks!