def get_hashes(self):
"""Get hashes of task's dependencies.
Dependencies consist of all files and on locks of children.
"""
with cd(self.path):
hashes = {}
for dirpath, dirnames, filenames in os.walk('.'):
if dirpath == '.':
dirnames[:] = [name for name in dirnames
if name not in ['.caf'] + list(self.links)]
for name in filenames:
filepath = Path(dirpath)/name
if filepath.is_symlink():
target = os.readlink(str(filepath))
if Path(target).is_absolute():
error('Cannot link to absolute paths in tasks')
if str(filepath) in self.files:
with cd(filepath.parent):
hashes[str(filepath)] = get_file_hash(Path(target))
else:
hashes[str(filepath)] = target
else:
make_nonwritable(filepath)
hashes[str(filepath)] = get_file_hash(filepath)
for linkname in self.links:
hashes[linkname] = get_file_hash(Path(linkname)/'.caf/lock')
return hashes
def store_link_text(self, text, target, label=None):
h = hashlib.new(hashf)
h.update(text.encode())
texthash = h.hexdigest()
cellarpath = self.ctx.cellar/str_to_path(texthash)
if not cellarpath.is_file():
if label is True:
info('Stored new file "{}"'.format(target))
elif label:
info('Stored new text labeled "{}"'.format(label))
else:
info('Stored new text')
mkdir(cellarpath.parent, parents=True, exist_ok=True)
with cellarpath.open('w') as f:
f.write(text)
make_nonwritable(cellarpath)
with cd(self.path):
relink(os.path.relpath(str(cellarpath)), target)
self.files[target] = cellarpath
def store_link_file(self, source, target=None):
try:
text = source.getvalue()
except AttributeError:
pass
else:
assert target
self.store_link_text(text, target)
return
if not target:
target = source
if Path(source).is_dir():
(self.path/target).mkdir()
return
filehash = get_file_hash(Path(source))
cellarpath = self.ctx.cellar/str_to_path(filehash)
if not cellarpath.is_file():
info('Stored new file "{}"'.format(source))
mkdir(cellarpath.parent, parents=True, exist_ok=True)
shutil.copy(str(source), str(cellarpath))
make_nonwritable(cellarpath)
with cd(self.path):
relink(os.path.relpath(str(cellarpath)), target)
self.files[str(target)] = cellarpath
