terminalManagement

play zone/terminalManagement

@@ -0,0 +1,58 @@
+import os
+import pty
+import shlex
+import signal
+from pathlib import Path
+
+import asyncio
+
+import pyte
+
+class Terminal:
+    def __init__(self, columns, lines, p_in):
+        self.screen = pyte.HistoryScreen(columns, lines)
+        self.screen.set_mode(pyte.modes.LNM)
+        self.screen.write_process_input = \
+            lambda data: p_in.write(data.encode())
+        self.stream = pyte.ByteStream()
+        self.stream.attach(self.screen)
+    def feed(self, data):
+        self.stream.feed(data)
+    def dump(self):
+        cursor = self.screen.cursor
+        lines = []
+        for y in self.screen.dirty:
+            line = self.screen.buffer[y]
+            data = [(char.data, char.reverse, char.fg, char.bg)
+                    for char in (line[x] for x in range(self.screen.columns))]
+            lines.append((y, data))
+        self.screen.dirty.clear()
+        return {"c": (cursor.x, cursor.y), "lines": lines}
+
+
+def open_terminal(command="bash", columns=80, lines=24):
+    p_pid, master_fd = pty.fork()
+    if p_pid == 0:  # Child.
+        argv = shlex.split(command)
+        env = dict(TERM="linux", LC_ALL="de_DE.UTF-8",
+                   COLUMNS=str(columns), LINES=str(lines))
+        os.execvpe(argv[0], argv, env)
+    # File-like object for I/O with the child process aka command.
+    p_out = os.fdopen(master_fd, "w+b", 0)
+    return Terminal(columns, lines, p_out), p_pid, p_out
+
+def convert_to_text(dump):
+    lines = dump['lines']
+    strLines = ''
+    for line in lines:
+        strLines += str(line[0])
+        for c in line[1]:
+            strLines += c[0]
+    return strLines
+
+t,p,o = open_terminal()
+t.feed(o.read(10000))
+convert_to_text(t.dump())
+t.feed(b'ls\r')
+t.feed(o.read(10000))
+convert_to_text(t.dump())