#command-line #code-analysis #suggestions

bin+lib code-errors

Command line tool to find errors in code!

1 unstable release

0.1.0 Dec 31, 2022

#1204 in Command line utilities

MIT license

119 lines


Building a Command Line Tool which provides suggestions when developers face errors while coding!

How it works

  • Give a command to run code-errors gcc hello.c.
  • It will run the command given and the error we get, should be parsed and sent to OPEN AI.
  • Print the suggestion given by OPEN AI.

Steps to set it up


Run the following commands for MacOS:

brew tap probro27/tap
brew install code-errors
  • Get an OPENAI API key from https://openai.com/api/ after signing up.
  • Create an environment variable by the name OPENAI_SK. An example of setting this up in MacOS or Linux is placing export OPENAI_SK="<your_api_key>" in ~/.bash_profile and running source ~/.bash_profile.
  • Now, run your code with a command code-errors <command>.

Usage - Example

Write a hello.c file with the code (bonus if you can find the obvious error)

#include <stdio.h>

int main() {
    print("Hello world!");
    return 0;

This looks like a simple hello world program. Let's compile it using our favourite complier gcc.

Run: code-errors gcc hello.c


Result: Code: 1, error/output:
hello.c:4:5: error: implicit declaration of function 'print' is invalid in C99 
    print("Hello world!, %1f");
hello.c:4:5: note: did you mean 'printf'?
/SDKs/MacOSX.sdk/usr/include/stdio.h:170:6: note: 'printf' declared here
int      printf(const char * __restrict, ...) __printflike(1, 2);
1 error generated.
Suggestion is:
The error message is telling that the implicit function 'print' is being used in line 4 - 
it should either be changed to 'printf' or the library containing the definition of 'print' should 
be included. It is also suggesting to include stdio.h header file which contains the definition 
of printf() function.

1. Implicit function declaration - https://en.cppreference.com/w/c/language/implicit_declaration
2. printf() - https://en.cppreference.com/w/c/io/printf


~285K SLoC