inherit terminal DEVSHELL = "${SHELL}" python do_devshell () { if d.getVarFlag("do_devshell", "manualfakeroot"): d.prependVar("DEVSHELL", "pseudo ") fakeenv = d.getVar("FAKEROOTENV").split() for f in fakeenv: k = f.split("=") d.setVar(k[0], k[1]) d.appendVar("OE_TERMINAL_EXPORTS", " " + k[0]) d.delVarFlag("do_devshell", "fakeroot") oe_terminal(d.getVar('DEVSHELL'), 'OpenEmbedded Developer Shell', d) } addtask devshell after do_patch do_prepare_recipe_sysroot # The directory that the terminal starts in DEVSHELL_STARTDIR ?= "${S}" do_devshell[dirs] = "${DEVSHELL_STARTDIR}" do_devshell[nostamp] = "1" # devshell and fakeroot/pseudo need careful handling since only the final # command should run under fakeroot emulation, any X connection should # be done as the normal user. We therfore carefully construct the envionment # manually python () { if d.getVarFlag("do_devshell", "fakeroot"): # We need to signal our code that we want fakeroot however we # can't manipulate the environment and variables here yet (see YOCTO #4795) d.setVarFlag("do_devshell", "manualfakeroot", "1") d.delVarFlag("do_devshell", "fakeroot") } def devpyshell(d): import code import select import signal import termios m, s = os.openpty() sname = os.ttyname(s) def noechoicanon(fd): old = termios.tcgetattr(fd) old[3] = old[3] &~ termios.ECHO &~ termios.ICANON # &~ termios.ISIG termios.tcsetattr(fd, termios.TCSADRAIN, old) # No echo or buffering over the pty noechoicanon(s) pid = os.fork() if pid: os.close(m) oe_terminal("oepydevshell-internal.py %s %d" % (sname, pid), 'OpenEmbedded Developer PyShell', d) os._exit(0) else: os.close(s) os.dup2(m, sys.stdin.fileno()) os.dup2(m, sys.stdout.fileno()) os.dup2(m, sys.stderr.fileno()) bb.utils.nonblockingfd(sys.stdout) bb.utils.nonblockingfd(sys.stderr) bb.utils.nonblockingfd(sys.stdin) _context = { "os": os, "bb": bb, "time": time, "d": d, } ps1 = "pydevshell> " ps2 = "... " buf = [] more = False i = code.InteractiveInterpreter(locals=_context) print("OE PyShell (PN = %s)\n" % d.getVar("PN")) def prompt(more): if more: prompt = ps2 else: prompt = ps1 sys.stdout.write(prompt) sys.stdout.flush() # Restore Ctrl+C since bitbake masks this def signal_handler(signal, frame): raise KeyboardInterrupt signal.signal(signal.SIGINT, signal_handler) child = None prompt(more) while True: try: try: (r, _, _) = select.select([sys.stdin], [], [], 1) if not r: continue line = sys.stdin.readline().strip() if not line: prompt(more) continue except EOFError as e: sys.stdout.write("\n") sys.stdout.flush() except (OSError, IOError) as e: if e.errno == 11: continue if e.errno == 5: return raise else: if not child: child = int(line) continue buf.append(line) source = "\n".join(buf) more = i.runsource(source, "") if not more: buf = [] prompt(more) except KeyboardInterrupt: i.write("\nKeyboardInterrupt\n") buf = [] more = False prompt(more) except SystemExit: # Easiest way to ensure everything exits os.kill(child, signal.SIGTERM) break python do_devpyshell() { import signal try: devpyshell(d) except SystemExit: # Stop the SIGTERM above causing an error exit code return finally: return } addtask devpyshell after do_patch do_devpyshell[nostamp] = "1"