def cat(self, path):
normalized = _normalize(path)
result = observe_command(['cat {}'.format(normalized)],
shell=True,
cwd=self._get_cwd())
print(result.output())
def cud(self, path=None):
result = observe_command(['''eval echo ~$USER'''], shell=True)
cud = _strip(result)
if path:
return _normalize(cud + '/' + path)
return cud
def cwd(self, path=None):
result = observe_command('pwd', shell=True, cwd=self._get_cwd())
stdout = _strip(result)
if path:
return _normalize(stdout + '/' + path)
return stdout
def compress(self, path, archive_name):
normalized = _normalize(path)
if not self.exists(normalized):
raise NotADirectoryError('The path "{}" does not exist.'.format(normalized))
arc_name = archive_name # type: str
if arc_name.endswith('.tar.xz'):
arc_name = arc_name.replace('.tar.xz', '')
observe_command(['XZ_OPT=-9 tar -cvpJf {}.tar.xz {}'.format(arc_name, normalized)],
shell=True,
cwd=self._get_cwd())
archive = '{}.tar.xz'.format(arc_name)
if not self.file_exists(self.cwd(archive)):
raise FileNotFoundError('The archive "{}" was not created.'.format(archive))
def glob(self, pattern):
result = observe_command(['''
shopt -s globstar
ls {}
'''.format(pattern)],
shell=True,
cwd=self._get_cwd())
output = _strip(result) # type: str
paths = output.splitlines() # type: list
return paths
def file_exists(self, path, include_symlink_to_file=True):
normalized = _normalize(path)
result = observe_command(['''[ -f {} ] && exit 0'''.format(normalized)],
shell=True,
cwd=self._get_cwd())
# if path exists and it is a file, the return_value is 0, otherwise 1
exists = result.return_value() == 0
if not include_symlink_to_file:
return exists and not self.symlink_exists(normalized)
return exists
def extract(self, archive_name, dir_to_extract=None):
arc_name = archive_name # type: str
if arc_name.endswith('.tar.xz'):
arc_name = arc_name.replace('.tar.xz', '')
archive = '{}.tar.xz'.format(arc_name)
if not self.file_exists(self.cwd(archive)):
raise FileNotFoundError('Archive "{}" does not exist.'.format(archive))
dir = arc_name
if dir_to_extract:
dir = _normalize(dir_to_extract)
if not self.dir_exists(dir):
self.create_dir(dir)
observe_command(['tar xf {}.tar.xz -C {}'.format(arc_name, dir)],
shell=True,
cwd=self._get_cwd())
def symlink_exists(self, path, must_point_to_file=False, must_point_to_dir=False):
normalized = _normalize(path)
result = observe_command(['''[ -L {} ] && exit 0'''.format(normalized)],
shell=True,
cwd=self._get_cwd())
# if path exists and it is a symlink, the return_value is 0, otherwise 1
is_symlink = result.return_value() == 0
if must_point_to_file:
return is_symlink and self.file_exists(normalized)
if must_point_to_dir:
return is_symlink and self.dir_exists(normalized)
return is_symlink
def _determine_cwd(self):
result = observe_command('pwd', shell=True)
self._set_cwd(result.stdout().rstrip())
def mv(self, source, dest):
observe_command(['mv {} {}'.format(source, dest)],
shell=True,
cwd=self._get_cwd())
def cp(self, source, dest):
observe_command(['yes | cp -rf {} {}'.format(source, dest)],
shell=True,
cwd=self._get_cwd())
def rm(self, path):
observe_command(['rm -rf {}'.format(path)],
shell=True,
cwd=self._get_cwd())
def symlink(self, what_path, to_where):
observe_command(['ln -sfn {} {}'.format(what_path, to_where)],
shell=True,
cwd=self._get_cwd())
def mkdir(self, path):
observe_command(['mkdir -p {}'.format(path)],
shell=True,
cwd=self._get_cwd())
def touch(self, file_name):
observe_command(['touch {}'.format(file_name)],
shell=True,
cwd=self._get_cwd())