<a href="https://github.com/sondrelg/printf-log-formatter"><img src="https://raw.githubusercontent.com/sondrelg/printf-log-formatter/main/logo.svg?token=GHSAT0AAAAAACAOR4AAQVLI3YMI4IZKDAYCZBS5KOA&sanitize=true" alt="logo" width="110" align="right"></a>
# printf-log-formatter
Automatically convert f-strings and `str.format()` syntax to printf-style strings.
In other words, this syntax
```python
logger.error(f"{1}")
logger.error("{}".format(1))
logger.error("{foo}".format(foo=1))
```
is changed to
```python
logger.error("%s", 1)
logger.error("%s", 1)
logger.error("%s", 1)
```
## Motivation
Why would we want to do this? [This article](https://blog.pilosus.org/posts/2020/01/24/python-f-strings-in-logging/) explains it pretty well.
Mainly it's useful for Python projects using [Sentry](https://sentry.io)'s log integration.
## Installation
You have two options for running this pre-commit hook:
### Python hook
If you would like to install this using Python, run:
```shell
pip install printf-log-formatter
```
then set the pre-commit hook up using:
```yaml
- repo: local
hooks:
- id: printf-log-formatter
name: printf-log-formatter
entry: printf-log-formatter
language: system
types: [ python ]
args:
- --log-level=error
```
### Rust hook
If you're happy to compile the Rust version, you can use:
```yaml
- repo: https://github.com/sondrelg/printf-log-formatter
rev: ''
hooks:
- id: printf-log-formatter
args:
- --log-level=error
```
## I just want to downgrade loggers once
The Rust binary or Python package can also be run directly, like this:
```shell
printf-log-formatter $(find . -name "*.py") --log-level error
```
Raw data
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"author": "Sondre Lilleb\u00f8 Gundersen <sondrelg@live.no>",
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