def get_dataset_md5(dataset,
use_cache=False,
debug=True,
location=temp_file_location):
"""
Parameters
----------
dataset : dataset script object
use_cache : True to use cached data or False to download again
debug: True to raise error or False to fail silently
location: path where temporary files are to be created for finding md5
Returns
-------
str : The md5 value of a particular dataset.
Example
-------
>>> for dataset in reload_scripts():
... if dataset.name=='aquatic-animal-excretion':
... print(get_dataset_md5(dataset))
...
683c8adfe780607ac31f58926cf1d326
"""
try:
db_name = '{}_sqlite.db'.format(dataset.name.replace('-', '_'))
workdir = mkdtemp(dir=location)
os.chdir(workdir)
engine = sqlite_engine.__new__(sqlite_engine.__class__)
engine.script_table_registry = {}
args = {
'command': 'install',
'dataset': dataset,
'file': os.path.join(workdir, db_name),
'table_name': '{db}_{table}',
'data_dir': '.'
}
engine.opts = args
engine.use_cache = use_cache
dataset.download(engine=engine, debug=debug)
engine.to_csv(sort=False)
engine.final_cleanup()
os.remove(os.path.join(workdir, db_name))
current_md5 = getmd5(os.path.join(file_location, workdir),
data_type='dir',
encoding=dataset.encoding)
if not os.path.exists(
os.path.join(file_location, 'current', dataset.name)):
os.makedirs(os.path.join(file_location, 'current', dataset.name))
for file in os.listdir(workdir):
move(os.path.join(workdir, file),
os.path.join(file_location, 'current', dataset.name))
finally:
if os.path.isfile(db_name):
os.remove(db_name)
if os.path.exists(os.path.join(HOME_DIR, 'raw_data', dataset.name)):
rmtree(os.path.join(HOME_DIR, 'raw_data', dataset.name))
os.chdir(os.path.dirname(file_location))
rmtree(workdir)
return current_md5
def test_status_dashboard():
if not os.path.exists(os.path.join(file_location, 'test_dir')):
os.makedirs(os.path.join(file_location, 'test_dir'))
create_dirs(os.path.join(test_files_location))
os.makedirs(
os.path.join(file_location, 'test_dir', 'old', 'sample-dataset'))
os.chdir(os.path.join(test_files_location, 'old', 'sample-dataset'))
script_module = get_script_module('sample_dataset')
sqlite_engine.opts = {
'install': 'sqlite',
'file': 'test_db.sqlite3',
'table_name': '{db}_{table}',
'data_dir': '.'
}
sqlite_engine.use_cache = False
script_module.download(engine=sqlite_engine)
script_module.engine.final_cleanup()
script_module.engine.to_csv()
os.remove('test_db.sqlite3')
# Finding the md5 of the modified dataset
setattr(script_module.tables['main'], 'path', modified_dataset_path)
workdir = mkdtemp(dir=test_files_location)
os.chdir(workdir)
sqlite_engine.use_cache = False
script_module.download(engine=sqlite_engine)
script_module.engine.final_cleanup()
script_module.engine.to_csv()
os.remove('test_db.sqlite3')
calculated_md5 = getmd5(os.getcwd(), data_type='dir')
rmtree(workdir)
# If md5 of current dataset doesn't match with current
# md5 we have to find the diff
if calculated_md5 != precalculated_md5:
os.chdir(os.path.join(test_files_location, 'current'))
sqlite_engine.opts = {
'install': 'sqlite',
'file': 'test_db_new.sqlite3',
'table_name': '{db}_{table}',
'data_dir': '.'
}
sqlite_engine.use_cache = False
script_module.download(sqlite_engine)
script_module.engine.final_cleanup()
script_module.engine.to_csv()
os.remove('test_db_new.sqlite3')
diff_generator(script_module, location=test_files_location)
diff_exist = True if os.path.isfile(
os.path.join(test_files_location, 'diffs',
'sample_dataset_main.html')) else False
csv_exist = True if os.path.isfile(
os.path.join(test_files_location, 'old', 'sample-dataset',
'sample_dataset_main.csv')) else False
os.chdir(file_location)
rmtree(test_files_location)
assert diff_exist == True
assert csv_exist == True
def get_dataset_md5(dataset,
use_cache=False,
debug=True,
location=temp_file_location):
"""Get the md5 value of a particular dataset
dataset script object
use_cache, True to use cached data or False to download again
debug,True to raise error or False to fail silently
location, path where temporary files are to be created for finding md5"""
try:
db_name = '{}_sqlite.db'.format(dataset.name.replace('-', '_'))
workdir = mkdtemp(dir=location)
os.chdir(workdir)
engine = sqlite_engine.__new__(sqlite_engine.__class__)
engine.script_table_registry = {}
args = {
'command': 'install',
'dataset': dataset,
'file': os.path.join(workdir, db_name),
'table_name': '{db}_{table}',
'data_dir': '.'
}
engine.opts = args
engine.use_cache = use_cache
dataset.download(engine=engine, debug=debug)
engine.to_csv(sort=False)
engine.final_cleanup()
try:
os.remove(join_path([workdir, db_name]))
except OSError as error:
print("There was an error.", error)
current_md5 = getmd5(workdir,
data_type='dir',
encoding=dataset.encoding)
ds = os.path.join(file_location, 'current', dataset.name)
try:
if os.path.exists(ds):
rmtree(ds)
except OSError as error:
print(error)
os.makedirs(ds)
for file in os.listdir(workdir):
try:
move(os.path.join(workdir, file), ds)
except OSError as error:
print(error)
finally:
if os.path.isfile(db_name): # delete database file
os.remove(db_name)
delete_raw_data(dataset) # delete raw data
os.chdir(os.path.dirname(file_location))
rmtree(workdir) # delete temp directory
return current_md5
def test_download_regression(dataset, expected):
"""Test download regression."""
os.chdir(retriever_root_dir)
base_path = 'test_raw_data'
path = os.path.join(base_path, dataset)
data_dir = "test_temp"
data = os.path.normpath(os.path.join(retriever_root_dir, path, data_dir))
rt.download(dataset, path=path)
current_md5 = getmd5(data=path, data_type='dir')
assert current_md5 == expected
shutil.rmtree(base_path)
# download using path and sub_dir
os.chdir(retriever_root_dir)
rt.download(dataset, path=path, sub_dir=data_dir)
current_md5 = getmd5(data=data, data_type='dir')
assert current_md5 == expected
shutil.rmtree(base_path)
def test_download_regression(dataset, expected):
"""Test download regression."""
os.chdir(retriever_root_dir)
base_path = 'test_raw_data'
path = os.path.join(base_path, dataset)
data_dir = "test_temp"
data = os.path.normpath(os.path.join(retriever_root_dir, path, data_dir))
rt.download(dataset, path=path)
current_md5 = getmd5(data=path, data_type='dir')
assert current_md5 == expected
shutil.rmtree(base_path)
# download using path and sub_dir
os.chdir(retriever_root_dir)
rt.download(dataset, path=path, sub_dir=data_dir)
current_md5 = getmd5(data=data, data_type='dir')
assert current_md5 == expected
shutil.rmtree(base_path)
def check_dataset(dataset):
md5 = None
status = None
reason = None
diff = None
dataset_detail = None
previous_md5 = ""
try:
dataset_detail = load_dataset_details()
previous_detail_records = "dataset_details" in dataset_detail and dataset_detail[
"dataset_details"]
dataset_has_record = dataset.name in dataset_detail['dataset_details']
if previous_detail_records and dataset_has_record:
previous_md5 = dataset_detail['dataset_details'][
dataset.name]['md5']
if dataset_type(dataset) == 'spatial':
install_postgres(dataset)
dir_path = DATASET_DATA_FOLDER.format(dataset_name=dataset.name)
md5 = getmd5(dir_path, data_type='dir')
if not dataset_has_record or md5 != previous_md5:
diff = diff_generator_spatial(dataset)
else:
remove_old_diff(dataset)
data_shift(dataset, is_spatial=True)
else:
md5 = get_dataset_md5(dataset)
if not dataset_has_record or md5 != previous_md5:
diff = diff_generator(dataset)
else:
remove_old_diff(dataset)
data_shift(dataset)
status = True
except Exception as e:
reason = str(e)
status = False
finally:
json_file_details = dataset_detail
json_file_details["dataset_details"][dataset.name] = {
"md5": md5,
"status": status,
"reason": reason,
"diff": diff
}
json_file_details["last_checked_on"] = datetime.now(
timezone.utc).strftime("%d %b %Y")
dataset_details_write = open(DATASET_DETAIL_JSON, 'w')
json.dump(json_file_details,
dataset_details_write,
sort_keys=True,
indent=4)
dataset_details_write.close()
delete_raw_data(dataset)
def get_csv_md5(dataset, engine, tmpdir, install_function, config, cols=None):
workdir = tmpdir.mkdtemp()
workdir.chdir()
final_direct = os.getcwd()
engine.script_table_registry = {}
engine_obj = install_function(dataset.replace('_', '-'), **config)
time.sleep(5)
engine_obj.to_csv(select_columns=cols)
current_md5 = getmd5(data=final_direct, data_type='dir')
os.chdir(retriever_root_dir)
return current_md5
def commit_info_for_commit(dataset, commit_message):
"""
Generate info for a particular commit.
"""
info = {
"packages": package_details(),
"time": datetime.now(timezone.utc).strftime("%m/%d/%Y, %H:%M:%S"),
"version": dataset.version,
"commit_message": commit_message,
"script_name": os.path.basename(dataset._file),
}
path_to_raw_data = os.path.join(HOME_DIR, "raw_data", dataset.name)
if os.path.exists(path_to_raw_data):
info["md5_dataset"] = getmd5(path_to_raw_data,
"dir",
encoding=ENCODING)
info["md5_script"] = getmd5(dataset._file,
data_type="file",
encoding=ENCODING)
return info
def get_csv_md5(dataset, engine, tmpdir, install_function, config):
workdir = tmpdir.mkdtemp()
os.system("cp -r {} {}/".format(os.path.join(retriever_root_dir, 'scripts'), os.path.join(str(workdir), 'scripts')))
workdir.chdir()
script_module = get_script_module(dataset)
install_function(dataset.replace("_", "-"), **config)
engine_obj = script_module.checkengine(engine)
engine_obj.to_csv()
os.system("rm -r scripts") # need to remove scripts before checking md5 on dir
current_md5 = getmd5(data=str(workdir), data_type='dir')
return current_md5
def get_csv_md5(dataset, engine, tmpdir, install_function, config, cols=None):
workdir = tmpdir.mkdtemp()
workdir.chdir()
final_direct = os.getcwd()
engine.script_table_registry = {}
engine_obj = install_function(dataset.replace('_', '-'), **config)
time.sleep(5)
engine_obj.to_csv(select_columns=cols)
current_md5 = getmd5(data=final_direct, data_type='dir')
os.chdir(retriever_root_dir)
return current_md5
def check_dataset(dataset):
os.chdir(os.path.join(file_location))
md5 = None
status = None
reason = None
diff = None
try:
try:
dataset_detail = json.load(open('dataset_details.json', 'r'))
except FileNotFoundError:
with open("dataset_details.json", 'w') as json_file:
dataset_detail = dict()
json.dump(dataset_detail, json_file)
if dataset_type(dataset) == 'spatial':
workdir = None
try:
workdir = mkdtemp(dir=file_location)
download(dataset.name, path=workdir)
md5 = getmd5(workdir, data_type='dir')
except Exception:
raise
finally:
if workdir:
rmtree(workdir)
else:
md5 = get_dataset_md5(dataset)
if dataset.name not in dataset_detail \
or md5 != dataset_detail[dataset.name]['md5']:
diff = diff_generator(dataset)
status = True
except Exception as e:
reason = str(e)
status = False
finally:
os.chdir(os.path.join(file_location))
with FileLock('dataset_details.json.lock'):
dataset_details_read = open('dataset_details.json', 'r')
json_file_details = json.load(dataset_details_read)
json_file_details[dataset.name] = {
"md5": md5,
"status": status,
"reason": reason,
"diff": diff
}
dataset_details_write = open('dataset_details.json', 'w')
json.dump(json_file_details,
dataset_details_write,
sort_keys=True,
indent=4)
def get_csv_md5(dataset, engine, tmpdir, install_function, config):
workdir = tmpdir.mkdtemp()
os.system("cp -r {} {}/".format(
os.path.join(retriever_root_dir, 'scripts'),
os.path.join(str(workdir), 'scripts')))
workdir.chdir()
script_module = get_script_module(dataset)
install_function(dataset.replace("_", "-"), **config)
engine_obj = script_module.checkengine(engine)
engine_obj.to_csv()
os.system(
"rm -r scripts") # need to remove scripts before checking md5 on dir
current_md5 = getmd5(data=str(workdir), data_type='dir')
return current_md5
def test_commit_installation(zip_file_name, expected_md5):
"""Installs the committed dataset in zip to sqlite and then converts
it to csv to calculate md5 to compare it with the expected_md5"""
db_name = 'test_sqlite.db'
zip_file_path = os.path.join(file_location, "raw_data/dataset-provenance/", zip_file_name)
engine = install_sqlite(zip_file_path, file=db_name, force=True)
workdir = mkdtemp(dir=file_location)
os.chdir(workdir)
engine.to_csv()
os.chdir(file_location)
if os.path.isfile(db_name):
os.remove(db_name)
calculated_md5 = getmd5(workdir, data_type='dir', encoding=ENCODING)
rmtree(workdir)
assert calculated_md5 == expected_md5
def get_csv_md5(dataset, engine, tmpdir, install_function, config):
workdir = tmpdir.mkdtemp()
src = os.path.join(retriever_root_dir, 'scripts')
dest = os.path.join(str(workdir), 'scripts')
subprocess.call(['cp', '-r', src, dest])
workdir.chdir()
final_direct = os.getcwd()
engine.script_table_registry = {}
engine_obj = install_function(dataset.replace('_', '-'), **config)
engine_obj.to_csv()
# need to remove scripts before checking md5 on dir
subprocess.call(['rm', '-r', 'scripts'])
current_md5 = getmd5(data=final_direct, data_type='dir')
os.chdir(retriever_root_dir)
return current_md5
def get_csv_md5(dataset, engine, tmpdir, install_function, config, cols=None):
workdir = tmpdir.mkdtemp()
src = os.path.join(retriever_root_dir, 'scripts')
dest = os.path.join(str(workdir), 'scripts')
subprocess.call(['cp', '-r', src, dest])
workdir.chdir()
final_direct = os.getcwd()
engine.script_table_registry = {}
engine_obj = install_function(dataset.replace('_', '-'), **config)
time.sleep(5)
engine_obj.to_csv(select_columns=cols)
# need to remove scripts before checking md5 on dir
subprocess.call(['rm', '-r', 'scripts'])
current_md5 = getmd5(data=final_direct, data_type='dir')
os.chdir(retriever_root_dir)
return current_md5
def check_dataset(dataset):
md5 = None
status = None
reason = None
diff = None
dataset_detail = None
try:
try:
with open(os.path.join(file_location, "dataset_details.json"), 'r') as json_file:
dataset_detail = json.load(json_file)
except (OSError, JSONDecodeError):
dataset_detail = dict()
dataset_detail['dataset_details'] = {}
if dataset_type(dataset) == 'spatial':
workdir = None
try:
workdir = mkdtemp(dir=file_location)
download(dataset.name, path=workdir)
md5 = getmd5(workdir, data_type='dir')
except Exception:
raise
finally:
if workdir:
rmtree(workdir)
else:
md5 = get_dataset_md5(dataset)
if dataset.name not in dataset_detail \
or md5 != dataset_detail[dataset.name]['md5']:
diff = diff_generator(dataset)
status = True
except Exception as e:
reason = str(e)
status = False
finally:
json_file_details = dataset_detail
json_file_details["dataset_details"][dataset.name] = {
"md5": md5,
"status": status,
"reason": reason,
"diff": diff}
json_file_details["last_checked_on"] = datetime.now(timezone.utc).strftime("%d %b %Y")
dataset_details_write = open(os.path.join(file_location, 'dataset_details.json'), 'w')
json.dump(json_file_details, dataset_details_write,
sort_keys=True, indent=4)
dataset_details_write.close()
def test_getmd5_path():
"""Test md5 sum calculation given a path to data source."""
data_file = create_file(['a,b,c', '1,2,3', '4,5,6'])
exp_hash = '0bec5bf6f93c547bc9c6774acaf85e1a'
assert getmd5(data=data_file, data_type='file') == exp_hash
def test_getmd5_line_end():
"""Test md5 sum calculation given a line with end of line character."""
lines_end = ['a,b,c\n', '1,2,3\n', '4,5,6\n']
exp_hash = '0bec5bf6f93c547bc9c6774acaf85e1a'
assert getmd5(data=lines_end, data_type='lines') == exp_hash
def test_getmd5_lines():
"""Test md5 sum calculation given a line."""
lines = ['a,b,c', '1,2,3', '4,5,6']
exp_hash = 'ca471abda3ebd4ae8ce1b0814b8f470c'
assert getmd5(data=lines, data_type='lines') == exp_hash
def test_getmd5_path():
"""Test md5 sum calculation given a path to data source."""
data_file = create_file(['a,b,c', '1,2,3', '4,5,6'])
exp_hash = '0bec5bf6f93c547bc9c6774acaf85e1a'
assert getmd5(data=data_file, data_type='file') == exp_hash
def test_getmd5_line_end():
"""Test md5 sum calculation given a line with end of line character."""
lines_end = ['a,b,c\n', '1,2,3\n', '4,5,6\n']
exp_hash = '0bec5bf6f93c547bc9c6774acaf85e1a'
assert getmd5(data=lines_end, data_type='lines') == exp_hash
def test_getmd5_lines():
"""Test md5 sum calculation given a line."""
lines = ['a,b,c', '1,2,3', '4,5,6']
exp_hash = 'ca471abda3ebd4ae8ce1b0814b8f470c'
assert getmd5(data=lines, data_type='lines') == exp_hash
def test_download_regression(dataset, expected):
"""Test download regression."""
os.chdir(retriever_root_dir)
download(dataset, "raw_data/{0}".format(dataset))
current_md5 = getmd5(data="raw_data/{0}".format(dataset), data_type='dir')
assert current_md5 == expected
def check_dataset(dataset):
md5 = None
status = None
reason = None
diff = None
dataset_detail = None
try:
try:
with open(os.path.join(file_location, "dataset_details.json"),
'r') as json_file:
dataset_detail = json.load(json_file)
except (OSError, JSONDecodeError):
dataset_detail = dict()
dataset_detail['dataset_details'] = {}
if dataset_type(dataset) == 'spatial':
install_postgres(dataset)
md5 = getmd5(path.join(file_location, 'current', dataset.name),
data_type='dir')
if dataset.name not in dataset_detail[
'dataset_details'] or md5 != dataset_detail[
'dataset_details'][dataset.name]['md5']:
diff = diff_generator_spatial(dataset)
else:
for keys in dataset.tables:
file_name = '{}.{}'.format(dataset.name.replace('-', '_'),
keys)
html_file_name = '{}.html'.format(file_name)
if os.path.exists(
os.path.join(file_location, 'diffs',
html_file_name)):
remove(
os.path.join(file_location, 'diffs',
html_file_name))
data_shift(dataset, is_spatial=True)
else:
md5 = get_dataset_md5(dataset)
if dataset.name not in dataset_detail[
'dataset_details'] or md5 != dataset_detail[
'dataset_details'][dataset.name]['md5']:
diff = diff_generator(dataset)
else:
for keys in dataset.tables:
file_name = '{}_{}'.format(dataset.name.replace('-', '_'),
keys)
html_file_name = '{}.html'.format(file_name)
if os.path.exists(
os.path.join(file_location, 'diffs',
html_file_name)):
remove(
os.path.join(file_location, 'diffs',
html_file_name))
data_shift(dataset)
status = True
except Exception as e:
reason = str(e)
status = False
finally:
json_file_details = dataset_detail
json_file_details["dataset_details"][dataset.name] = {
"md5": md5,
"status": status,
"reason": reason,
"diff": diff
}
json_file_details["last_checked_on"] = datetime.now(
timezone.utc).strftime("%d %b %Y")
dataset_details_write = open(
os.path.join(file_location, 'dataset_details.json'), 'w')
json.dump(json_file_details,
dataset_details_write,
sort_keys=True,
indent=4)
dataset_details_write.close()
if os.path.exists(os.path.join(HOME_DIR, 'raw_data', dataset.name)):
rmtree(os.path.join(HOME_DIR, 'raw_data', dataset.name))
def test_download_regression(dataset, expected):
"""Test download regression."""
os.chdir(retriever_root_dir)
download(dataset, "raw_data/{0}".format(dataset))
current_md5 = getmd5(data="raw_data/{0}".format(dataset), data_type='dir')
assert current_md5 == expected