Run command on save feature

[trymeouteh]

The ability to run custom commands when you save specific file extensions in VSCode. Can be used to act as a "watch" feature when working with code to run bundlers when the user saves their code.

These commands that can be executed when a file is saved, can be done in the .vscode/settings.json file or in the global settings.json file. An indicator will be in the bottom tool bar which will indicate when a command is being executed and when the command has finished executing for builds that may take a few seconds.

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Happy Coding!

[moritz-t-w]

This is in fact surprisingly difficult to do yourself.

• There are a few extensions that do this, such as File Watcher, however, they are quite tedious to set up. Here's one of File Watcher's sample configurations:

  {
  "filewatcher.commands": [
      {
          "match": "\\.ts*",
          "isAsync": true,
          "cmd": "echo '${file} file content Changed'",
          "event": "onFileChange"
      }       
  ]
  }

• Alternatively, there are programs, such as fswatch. However, I just found out that it is currently broken https://github.com/emcrisostomo/fswatch/issues/247.
• Since fswatch can't be used with file extension filtering, You'll need to use a platform specific tool, such as inotifywait. However, these tend to be more bare bones, requiring you to do more work. Here's a solution by Denilson Sá Maia on the Super User StackExchange

  
  inotifywait -e close_write,moved_to,create -m . |
  while read -r directory events filename; do
  if [ "$filename" = "myfile.py" ]; then
  ./myfile.py
  fi
  done