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git-time-tracker/git_time_tracker/__init__.py
2024-08-26 00:57:51 +02:00

148 lines
3.8 KiB
Python

"""# Git-based Time Tracker.
Quick and dirty time tracker on git histories.
Uses the simple heuristics that each commit takes precisely one hour of work.
It will automatically trim commits below one hour if another commit occurred
less than an hour ago.
Usage:
```
python -m git_time_tracker REPO1 REPO2...
```
# Obligatory
This tool reports:
```
project Jmaa/git-time-tracker.git 3h 33m (2024)
```
And the ([Hamster](https://github.com/projecthamster/hamster)) manual time tracker reports:
![](docs/obligatory-hamster.png)
"""
import argparse
import datetime
import logging
import sys
from collections.abc import Iterator
from pathlib import Path
from .data import (
HIDDEN_LABEL_PREFIX,
HIDDEN_LABEL_TOTAL,
RealizedWorkSample,
WorkSample,
)
from .format import cli, icalendar
from .source import git_repo
logger = logging.getLogger(__name__)
DEFAULT_ESTIMATED_DURATION = datetime.timedelta(hours=1)
ZERO_DURATION = datetime.timedelta(seconds=0)
HOUR = datetime.timedelta(hours=1)
MINUTE = datetime.timedelta(minutes=1)
def filter_samples(
samples: list[WorkSample], sample_filter: set[str],
) -> list[WorkSample]:
assert len(sample_filter) > 0
return [s for s in samples if set(s.labels).intersection(sample_filter)]
def heuristically_realize_samples(
samples: list[WorkSample],
) -> Iterator[RealizedWorkSample]:
"""Secret sauce.
Guarentees that:
* No samples overlap.
"""
previous_sample_end = datetime.datetime.fromtimestamp(0, datetime.UTC)
for sample in samples:
end_at = sample.end_at
assert previous_sample_end <= end_at, 'Iterating in incorrect order'
# TODO: Allow end_at is None
start_at = sample.start_at
if start_at is None:
estimated_duration: datetime.timedelta = DEFAULT_ESTIMATED_DURATION
start_at = max(previous_sample_end, end_at - estimated_duration)
del estimated_duration
yield RealizedWorkSample(labels=sample.labels, end_at=end_at, start_at=start_at)
previous_sample_end = sample.end_at
del sample
def parse_arguments():
parser = argparse.ArgumentParser()
parser.add_argument(
'--git-repo',
action='extend',
nargs='+',
type=Path,
dest='repositories',
)
parser.add_argument(
'--filter',
action='extend',
nargs='+',
type=str,
dest='sample_filter',
default=[],
)
parser.add_argument(
'--format',
action='store',
type=str,
dest='format_mode',
default='cli_report',
choices=['cli_report', 'icalendar'],
)
return parser.parse_args()
def main():
logging.basicConfig()
args = parse_arguments()
shared_time_stamps_set: set[WorkSample] = set()
for repo_path in args.repositories:
logger.warning('Visit %s', repo_path)
shared_time_stamps_set |= set(
git_repo.iterate_samples_from_git_repository(repo_path),
)
shared_time_stamps = sorted(shared_time_stamps_set, key=lambda s: s.end_at)
del shared_time_stamps_set
sample_filter = args.sample_filter
if len(sample_filter) != 0:
logger.warning('Filtering %s samples', len(shared_time_stamps))
shared_time_stamps = filter_samples(shared_time_stamps, sample_filter)
logger.warning('Filtered down to %s samples', len(shared_time_stamps))
logger.warning('Realizing %s samples', len(shared_time_stamps))
shared_time_stamps = list(heuristically_realize_samples(shared_time_stamps))
if args.format_mode == 'cli_report':
for t in cli.generate_report(shared_time_stamps):
sys.stdout.write(t)
elif args.format_mode == 'icalendar':
icalendar.generate_icalendar_file(
shared_time_stamps, file='./output/samples.ics',
)