--ignore dir doesn't work well for changes made by command

[c02y]

Please delete this template text before filing, but you need to include the following:

• Watchexec's version: 1.19.0 installed from Arch Linux repo
• The OS you're using: Arch Linux
• A log with -vvv (if it has sensitive info you can email it at felix@passcod.name — do that after filing so you can reference the issue ID)
  This output becomes thousands of lines in a second, and the command runs repeatedly, the output is full of color code if I output the result into a file, so it is unreadable, unable to paste here.
• A sample command that you've run that has the issue

Create a simple project structure like this

- CMakeLists.txt
- test.cpp

Contents like this:

$ cat CMakeLists.txt
cmake_minimum_required(VERSION 3.18)
project(test)

add_executable(test test.cpp)

$ cat test.cpp
#include <iostream>

int main(int argc, char *argv[])
{
        std::cout << "hello word" << std::endl;
        return 0;
}

Run command like this:

watchexec -i build "cmake -B build"

it will keep running repeatedly forever, since files in build are changed every time you run the command.

But (suggested by #254 (comment))

watchexec -i "build/**" "cmake -B build"

works very well.

Thank you

FYI: I think this is related to #40 and #123, and --watch-when-idle doesn't work at all (if this is the flag for this purpose)

[passcod]

I can strip the color codes myself if you send me a file, it's fine. It's likely the same issue as #254, and having another log will help find a good solution.

[c02y]

Output of:

watchexec -i build -vvv "cmake -B build"

log.txt

I only run it and Ctrl-c in less than a second, since it contains over 10k of lines after a second, if this log is not enough, please let me know.

And you can follow the easy steps I provided to reproduce this log.

[passcod]

Thanks, I'll have a look tonight!

[passcod]

Alright, this is indeed a duplicate of #254, and will likely be solved with the work for #250.

At its core, this is an issue with how the underlying globset library processes and interprets these patterns (it resolves it to **/build); the work for #250 is essentially a rewrite of the lower levels of ignore handling, due to other similar subtle issues with the globset and ignore crates.

Obviously that's a decent chunk of work; in the meantime using **/build/** or build/** can be used as workaround.