# ics-fixer
This program will fix common issues with ICS files that prevent programs such as Mozilla Thunderbird from parsing them.
```
Usage: ics-fixer [OPTIONS] INPUT_FILE [OUTPUT_FILE]
Arguments:
INPUT_FILE Path to the input ICS file. [required]
[OUTPUT_FILE] Path for the output file. If omitted, the input file is
overwritten.
Options:
--skip-mojibake-fix Do not run the mojibake (garbled text)
fixer.
--debug Enable debug logging.
--help Show this message and exit.
```
## Installation
[uv](https://docs.astral.sh/uv/) is recommended to install the package in a managed environment:
uv tool install ics-fixer
## Dependencies
* Python >= 3.13
* dateparser
* ftfy
* icalendar
* typer
## Notes
These fields may contain desired data but will be discarded if it is incorrectly formatted:
* Event orgainizer
* Event attendee list
In my use case, this is acceptable as I have only encountered ICS files where malformed `ORGANIZER` or `ATTENDEE` values were useless.
If start or end time is in the wrong format and can't be parsed, the current time at the program's execution will be substituted.
If the start and end time are equal and contain the time, the end time will be shifted one hour, as some programs do not work properly with 0-length events. If the intention is an all-day event, the end time should be 24 hours after the start time.
## Potential Implementations
* Unit tests
* Support for older Python versions
* Timezone shifter for source files with incorrect times
* Better fixes for malformed `ORGANIZER` or `ATTENDEE`
* I would need real world sample data
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