Rust-Java-Import-Order

Re-organize the import statements of java files in a given folder.

The imports are organized in the following order :

• All static imports
  • imports starting with "java"
  • imports starting with "javax"
  • imports starting with "org"
  • imports starting with "com"
  • all other imports

You can download the binary from here and run the project as follows

./Rust-Java-Import-Order absolute_path_of_folder

Same as what you can do in intellij by : code->Organize Imports.

So then why write a rust program to do that? Because why not!

Still a few reasons :

1. A way to learn rust. This was my first rust program. I chose the problem statement of organizing imports of every file in a folder because :

• The project I wanted to perform the operation on has over 1000 java files. So I can't do that individually over each file using intellij.
• Writing a import organizer meant, I need know how to read and write files and how to do custom sorting.

2. The problem had right balance of difficulty and fun. That meant it was challenging throughout but also not so much that I give up.

The flow of the program is :

• Go over the directories and sub-directories and find all java files.
• Go over each java file and get contents before and after the import statement. These will remain as is.
• Sort the import statements in the following order :
  • All static imports
  • imports starting with "java"
  • imports starting with "javax"
  • imports starting with "org"
  • imports starting with "com"
  • all other imports
• Insert the before import, sorted import and after import statements.

There are SO MANY optimizations that can be done in the code and it can be written in a much cleaner way. Feel free to send PR's/open issues.