class Session(object):
""" Class representing a session object based on a shell command """
def __init__(self, n, cmd, **kwargs):
self.id = n
self.parent = kwargs.pop('parent')
if isinstance(cmd, str):
cmd = shlex.split(cmd)
self._path = Path(self.parent.console._files.tempdir,
"session",
str(n),
create=True)
for i, s in enumerate(["stdin", "stdout", "stderr"]):
fifo = str(self._path.joinpath(str(i)))
self._named_pipes.append(fifo)
os.mkfifo(fifo, 0o777)
setattr(self, "_" + s, os.open(fifo, os.O_WRONLY))
def close(self):
for s in ["stdin", "stdout", "stderr"]:
getattr(self, "_" + s).close()
shutil.rmtree(str(self._path))
self._process.wait()
del self.parent[self.id]
def start(self, **kwargs):
kwargs['close_fds'] = True
kwargs[
'preexec_fn'] = os.setsid # NB: see subprocess' doc ; preexec_fn is not thread-safe
self._process = Popen(cmd,
stdout=self._stdout,
stderr=self._stderr,
stdin=self._stdin,
**kwargs)
def run(self, key, value=None):
if key == "files":
if value is None:
data = [["Path", "Size"]]
p = Path(self.config.option("WORKSPACE").value)
for f in self.console._files.list:
data.append([f, human_readable_size(p.joinpath(f).size)])
print_formatted_text(
BorderlessTable(data, "Files from the workspace"))
elif self.config.option("TEXT_VIEWER").value:
self.console._files.view(value)
elif key == "issues":
t = Entity.get_issues()
if len(t) > 0:
print_formatted_text(t)
elif key == "modules":
h = Module.get_help(value)
if h.strip() != "":
print_formatted_text(h)
else:
self.logger.warning("No module loaded")
elif key == "options":
if value is None:
print_formatted_text(ANSI(str(self.config)))
else:
c = Config()
c[self.config.option(value)] = self.config[value]
print_formatted_text(ANSI(str(c)))
elif key == "projects":
if value is None:
data = [["Name"]]
for p in projects(self):
data.append([p])
print_formatted_text(BorderlessTable(data,
"Existing projects"))
else:
print_formatted_text(value)
elif key == "sessions":
data = [["ID", "Description"]]
for i, s in self.console._sessions:
data.append([str(i), getattr(s, "description", "<undefined>")])
print_formatted_text(BorderlessTable(data, "Open sessions"))
