Metadata-Version: 2.4
Name: watcher-fs
Version: 1.2
Summary: A Python package for monitoring file system changes
Author-email: Pavel Křupala <pavel.krupala@gmail.com>
License: MIT License
        
        Copyright (c) 2025 Pavel Křupala
        
        Permission is hereby granted, free of charge, to any person obtaining a copy
        of this software and associated documentation files (the "Software"), to deal
        in the Software without restriction, including without limitation the rights
        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
        copies of the Software, and to permit persons to whom the Software is
        furnished to do so, subject to the following conditions:
        
        The above copyright notice and this permission notice shall be included in all
        copies or substantial portions of the Software.
        
        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
        OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
        SOFTWARE.
        
Project-URL: Homepage, https://github.com/pavelkrupala/watcher-fs
Project-URL: Documentation, https://pavelkrupala.github.io/watcher-fs
Classifier: Programming Language :: Python :: 3
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Requires-Python: >=3.11
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: click>=8.1.0
Dynamic: license-file

# Watcher

A Python package for monitoring file system changes.

## Installation
```bash
pip install watcher-fs
```

## Synchronous Usage

```python
from watcher_fs.watcher import Watcher, TriggerType
from pathlib import Path 

test_dir = Path("test_dir")

def on_change_simple():
    print(f"Something changed.")

def on_change(change):
    print(f"File {change}")

watcher = Watcher()

# register as glob pattern
watcher.register("test_dir/**/*.txt", on_change_simple, TriggerType.PER_FILE)
watcher.register("test_dir/**/*.py", on_change, TriggerType.ANY_FILE, callback_extra=True)

# register as list of specified files
watcher.register([
    test_dir / "skin.styl",
    test_dir / "styl/default.styl",
    test_dir / "styl/utils.styl"
], on_change, TriggerType.ANY_FILE, callback_extra=True)

# Simulate a check
watcher.check()

# do something
with open(test_dir / "aaa.txt", "w") as f:
    f.write("Modified content")
with open(test_dir / "bbb.txt", "w") as f:
    f.write("Modified content")

with open(test_dir / "skin.styl", "w") as f:
    f.write("a = #0af")
with open(test_dir / "styl/default.styl", "w") as f:
    f.write("a = #f00")

# check again
watcher.check()

```

## Asynchronous Usage

```python
import asyncio
from pathlib import Path 
from watcher_fs.async_watcher import AsyncWatcher, TriggerType


# Example usage:
async def main():
    test_dir = Path("test_dir")

    async def on_change_simple():  # CHANGED: Async callback
        print(f"Something changed.")

    async def on_change(change):  # CHANGED: Async callback
        print(f"File {change}")

    def create_test_files(file_names):
        """Helper to create test files (synchronous for simplicity)."""
        for file_name in file_names:
            file_path = test_dir / file_name
            file_path.parent.mkdir(parents=True, exist_ok=True)
            with open(file_path, "w") as f:
                if file_name.endswith(".txt"):
                    f.write("Initial content")
                else:  # .styl
                    f.write("a = #fa0")

    create_test_files(["aaa.txt", "bbb.txt", "ccc.txt"])
    create_test_files(["skin.styl", "styl/default.styl", "styl/utils.styl"])

    watcher = AsyncWatcher()
    await watcher.register("test_dir/**/*.txt", on_change_simple, TriggerType.PER_FILE)
    await watcher.register(
        [test_dir / "skin.styl", test_dir / "styl/default.styl", test_dir / "styl/utils.styl"],
        on_change, TriggerType.ANY_FILE, callback_extra=True
    )

    # Simulate a check
    await watcher.check()

    # Modify files (synchronous for simplicity)
    with open(test_dir / "aaa.txt", "w") as f:
        f.write("Modified content")
    with open(test_dir / "bbb.txt", "w") as f:
        f.write("Modified content")
    with open(test_dir / "skin.styl", "w") as f:
        f.write("a = #0af")
    with open(test_dir / "styl/default.styl", "w") as f:
        f.write("a = #f00")

    # Check again
    await watcher.check()


if __name__ == "__main__":
    asyncio.run(main())

```

## Documentation

See https://pavelkrupala.github.io/watcher-fs
