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import os
from pathlib import Path
from typing import List
import pystac
import pytest
from click.testing import CliRunner
from stactools.cli.cli import cli
from stactools.core import move_all_assets
from tests import test_data
@pytest.fixture(scope="function")
def two_planet_disaster_subsets(tmp_path: Path):
"""Fixture that makes two copies of subset of the planet
disaster data, each containing a single item. Updates the collection
extents to match the single items.
Returns a list of collection paths in the temporary directory.
"""
item_ids = ["20170831_172754_101c", "20170831_162740_ssc1d1"]
new_cols = []
for item_id in item_ids:
col = pystac.Collection.from_file(
test_data.get_path("data-files/planet-disaster/collection.json")
)
for item in list(col.get_items(recursive=True)):
if item.id != item_id:
item.get_parent().remove_item(item.id)
col.update_extent_from_items()
col.normalize_hrefs(str(tmp_path / item_id))
col.save(catalog_type=pystac.CatalogType.SELF_CONTAINED)
move_all_assets(col, copy=True)
col.save()
new_cols.append(col.get_self_href())
return new_cols
def test_merge_moves_assets(two_planet_disaster_subsets: List[str]):
col_paths = two_planet_disaster_subsets
runner = CliRunner()
result = runner.invoke(cli, ["merge", "-a", col_paths[0], col_paths[1]])
assert result.exit_code == 0
target_col = pystac.read_file(col_paths[1])
items = list(target_col.get_items(recursive=True))
assert len(items) == 2
for item in items:
for asset in item.assets.values():
assert os.path.dirname(asset.get_absolute_href()) == os.path.dirname(
item.get_self_href()
)
def test_merge_as_child(two_planet_disaster_subsets: List[str]):
col_paths = two_planet_disaster_subsets
runner = CliRunner()
result = runner.invoke(cli, ["merge", "-a", "-c", col_paths[0], col_paths[1]])
assert result.exit_code == 0
target_col = pystac.read_file(col_paths[1])
links = list(target_col.get_child_links())
assert len(links) == 2
for child in links:
assert os.path.exists(child.get_absolute_href())
def test_merge_updates_collection_extent(two_planet_disaster_subsets: List[str]):
col_paths = two_planet_disaster_subsets
extent1 = pystac.read_file(col_paths[0]).extent
extent2 = pystac.read_file(col_paths[1]).extent
xmin = min([extent1.spatial.bboxes[0][0], extent2.spatial.bboxes[0][0]])
time_max = max(
[
extent1.temporal.intervals[0][1],
extent2.temporal.intervals[0][1],
]
)
runner = CliRunner()
result = runner.invoke(cli, ["merge", col_paths[0], col_paths[1]])
assert result.exit_code == 0
result_extent = pystac.read_file(col_paths[1]).extent
def set_of_values(x):
result = set([])
if type(x) is dict:
result |= set_of_values(list(x.values()))
elif type(x) is list:
for e in x:
if type(e) is list:
result |= set_of_values(e)
else:
result.add(e)
return result
# Make sure it didn't just carry forward the old extent
assert set_of_values(result_extent.spatial.bboxes) != set_of_values(
extent2.spatial.bboxes
)
assert set_of_values(result_extent.temporal.intervals) != set_of_values(
extent2.temporal.intervals
)
assert result_extent.spatial.bboxes[0][0] == xmin
assert result_extent.temporal.intervals[0][1] == time_max
def test_merges_assets(tmp_path: Path, tmp_planet_disaster: pystac.Collection):
col0 = tmp_planet_disaster
item_id = "2017831_195552_SS02"
item = col0.get_item(item_id, recursive=True)
new_col1 = col0.clone()
new_col1.clear_children()
item1 = item.clone()
del item1.assets["visual"]
new_col1.add_item(item1)
new_col1.normalize_hrefs(str(tmp_path / "a"))
new_col1.save()
new_col2 = col0.clone()
new_col2.clear_children()
item2 = item.clone()
del item2.assets["full-jpg"]
new_col2.add_item(item2)
new_col2.normalize_hrefs(str(tmp_path / "b"))
new_col2.save()
runner = CliRunner()
result = runner.invoke(
cli,
[
"merge",
str(tmp_path / "a" / "collection.json"),
str(tmp_path / "b" / "collection.json"),
"--move-assets",
"--ignore-conflicts",
],
)
assert result.exit_code == 0
target_col = pystac.read_file(str(tmp_path / "b" / "collection.json"))
result_item = target_col.get_item(item_id, recursive=True)
assert "visual" in result_item.assets
assert "full-jpg" in result_item.assets
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