Filtering and heuristic is now done outside of output format

git_time_tracker/__init__.py

@@ -29,21 +29,52 @@ 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, WorkSample
+from .data import HIDDEN_LABEL_PREFIX, HIDDEN_LABEL_TOTAL, WorkSample, RealizedWorkSample
 from .format import cli
 from .source import git_repo
 
 logger = logging.getLogger(__name__)
 
 
-DEFAULT_EST_TIME = datetime.timedelta(hours=1)
+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 not 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(
@@ -69,14 +100,24 @@ def main():
 
     args = parse_arguments()
 
-    shared_time_stamps: set[WorkSample] = set()
+    shared_time_stamps_set: set[WorkSample] = set()
     for repo_path in args.repositories:
         logger.warning('Visit %s', repo_path)
-        shared_time_stamps |= set(
+        shared_time_stamps_set |= set(
             git_repo.iterate_samples_from_git_repository(repo_path),
         )
 
-    shared_time_stamps = sorted(shared_time_stamps)
+    shared_time_stamps = sorted(shared_time_stamps_set, key = lambda s: s.end_at)
+    del shared_time_stamps_set
 
-    for t in cli.generate_report(shared_time_stamps, sample_filter=args.sample_filter):
+    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 = heuristically_realize_samples(shared_time_stamps)
+
+    for t in cli.generate_report(shared_time_stamps):
         sys.stdout.write(t)

git_time_tracker/data.py

@@ -8,5 +8,11 @@ HIDDEN_LABEL_TOTAL = HIDDEN_LABEL_PREFIX + 'TOTAL'
 
 @dataclasses.dataclass(frozen=True, order=True)
 class WorkSample:
-    registered_at: datetime.datetime
     labels: Sequence[str]
+    start_at: datetime.datetime | None
+    end_at: datetime.datetime | None
+
+@dataclasses.dataclass(frozen=True, order=True)
+class RealizedWorkSample(WorkSample):
+    start_at: datetime.datetime
+    end_at: datetime.datetime

git_time_tracker/format/cli.py

@@ -1,9 +1,8 @@
 import datetime
 from collections.abc import Iterator
 
-from ..data import HIDDEN_LABEL_PREFIX, HIDDEN_LABEL_TOTAL, WorkSample
+from ..data import HIDDEN_LABEL_PREFIX, HIDDEN_LABEL_TOTAL, RealizedWorkSample
 
-DEFAULT_EST_TIME = datetime.timedelta(hours=1)
 ZERO_DURATION = datetime.timedelta(seconds=0)
 HOUR = datetime.timedelta(hours=1)
 MINUTE = datetime.timedelta(minutes=1)
@@ -37,31 +36,20 @@ def fmt_line(label_type: str, label: str, total_time: datetime.timedelta) -> str
 
 
 def generate_report(
-    samples: list[WorkSample],
-    sample_filter=frozenset(),
+    samples: list[RealizedWorkSample],
 ) -> Iterator[str]:
-    LABEL_FILTER = {}
-
     # Time spent per label
     time_per_label: dict[str, datetime.timedelta] = {}
     years_per_label: dict[str, set[int]] = {}
-    prev_time = datetime.datetime.fromtimestamp(0, datetime.UTC)
     for sample in samples:
-        est_time: datetime.timedelta = DEFAULT_EST_TIME
-        est_time = min(sample.registered_at - prev_time, est_time)
-
-        if len(sample_filter) == 0:
-            pass
-        elif not set(sample.labels).intersection(sample_filter):
-            continue
+        duration = sample.end_at - sample.start_at
 
         for label in sample.labels:
             time_per_label.setdefault(label, ZERO_DURATION)
-            time_per_label[label] += est_time
-            years_per_label.setdefault(label, set()).add(sample.registered_at.year)
+            time_per_label[label] += duration
+            years_per_label.setdefault(label, set()).add(sample.end_at.year)
 
-        prev_time = sample.registered_at
-        del sample, est_time
+        del sample, duration
 
     time_and_label = [(duration, label) for label, duration in time_per_label.items()]
     time_and_label.sort(reverse=True)
@@ -75,9 +63,6 @@ def generate_report(
 
         label_type, label = label_and_type.split(':', 1)
 
-        if len(LABEL_FILTER) > 0 and label_type not in LABEL_FILTER:
-            continue
-
         yield fmt_line(label_type, label, total_time)
         yield '  ('
         yield fmt_year_ranges(years_per_label.get(label_and_type, []))

git_time_tracker/source/git_repo.py

@@ -37,14 +37,21 @@ def get_samples_from_project(repo: git.Repo) -> Iterator[WorkSample]:
         labels = [HIDDEN_LABEL_TOTAL]
         labels.append('project:' + project_name)
         labels.append('author:' + commit.author.email)
+
+        authored_date = datetime.datetime.fromtimestamp(commit.authored_date, tz=datetime.UTC)
+        committed_date = datetime.datetime.fromtimestamp(commit.committed_date, tz=datetime.UTC)
+
         yield WorkSample(
-            datetime.datetime.fromtimestamp(commit.authored_date, tz=datetime.UTC),
-            tuple(labels),
-        )
-        yield WorkSample(
-            datetime.datetime.fromtimestamp(commit.committed_date, tz=datetime.UTC),
-            tuple(labels),
+            labels = tuple(labels),
+            start_at = None,
+            end_at = authored_date,
         )
+        if authored_date != committed_date:
+            yield WorkSample(
+                labels = tuple(labels),
+                start_at = None,
+                end_at = committed_date,
+            )
         del labels