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author | Dave Cobbley <david.j.cobbley@linux.intel.com> | 2018-08-14 20:05:37 +0300 |
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committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2018-08-23 04:26:31 +0300 |
commit | eb8dc40360f0cfef56fb6947cc817a547d6d9bc6 (patch) | |
tree | de291a73dc37168da6370e2cf16c347d1eba9df8 /poky/scripts/oepydevshell-internal.py | |
parent | 9c3cf826d853102535ead04cebc2d6023eff3032 (diff) | |
download | openbmc-eb8dc40360f0cfef56fb6947cc817a547d6d9bc6.tar.xz |
[Subtree] Removing import-layers directory
As part of the move to subtrees, need to bring all the import layers
content to the top level.
Change-Id: I4a163d10898cbc6e11c27f776f60e1a470049d8f
Signed-off-by: Dave Cobbley <david.j.cobbley@linux.intel.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'poky/scripts/oepydevshell-internal.py')
-rwxr-xr-x | poky/scripts/oepydevshell-internal.py | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/poky/scripts/oepydevshell-internal.py b/poky/scripts/oepydevshell-internal.py new file mode 100755 index 000000000..04621ae8a --- /dev/null +++ b/poky/scripts/oepydevshell-internal.py @@ -0,0 +1,97 @@ +#!/usr/bin/env python3 + +import os +import sys +import time +import select +import fcntl +import termios +import readline +import signal + +def nonblockingfd(fd): + fcntl.fcntl(fd, fcntl.F_SETFL, fcntl.fcntl(fd, fcntl.F_GETFL) | os.O_NONBLOCK) + +def echonocbreak(fd): + old = termios.tcgetattr(fd) + old[3] = old[3] | termios.ECHO | termios.ICANON + termios.tcsetattr(fd, termios.TCSADRAIN, old) + +def cbreaknoecho(fd): + old = termios.tcgetattr(fd) + old[3] = old[3] &~ termios.ECHO &~ termios.ICANON + termios.tcsetattr(fd, termios.TCSADRAIN, old) + +if len(sys.argv) != 3 or sys.argv[1] in ('-h', '--help'): + print('oepydevshell-internal.py: error: the following arguments are required: pty, pid\n' + 'Usage: oepydevshell-internal.py pty pid\n\n' + 'OpenEmbedded oepydevshell-internal.py - internal script called from meta/classes/devshell.bbclass\n\n' + 'arguments:\n' + ' pty pty device name\n' + ' pid parent process id\n\n' + 'options:\n' + ' -h, --help show this help message and exit\n') + sys.exit(2) + +pty = open(sys.argv[1], "w+b", 0) +parent = int(sys.argv[2]) + +nonblockingfd(pty) +nonblockingfd(sys.stdin) + + +histfile = os.path.expanduser("~/.oedevpyshell-history") +readline.parse_and_bind("tab: complete") +try: + readline.read_history_file(histfile) +except IOError: + pass + +try: + + i = "" + o = "" + # Need cbreak/noecho whilst in select so we trigger on any keypress + cbreaknoecho(sys.stdin.fileno()) + # Send our PID to the other end so they can kill us. + pty.write(str(os.getpid()).encode('utf-8') + b"\n") + while True: + try: + writers = [] + if i: + writers.append(sys.stdout) + (ready, _, _) = select.select([pty, sys.stdin], writers , [], 0) + try: + if pty in ready: + i = i + pty.read().decode('utf-8') + if i: + # Write a page at a time to avoid overflowing output + # d.keys() is a good way to do that + sys.stdout.write(i[:4096]) + sys.stdout.flush() + i = i[4096:] + if sys.stdin in ready: + echonocbreak(sys.stdin.fileno()) + o = input().encode('utf-8') + cbreaknoecho(sys.stdin.fileno()) + pty.write(o + b"\n") + except (IOError, OSError) as e: + if e.errno == 11: + continue + if e.errno == 5: + sys.exit(0) + raise + except EOFError: + sys.exit(0) + except KeyboardInterrupt: + os.kill(parent, signal.SIGINT) + +except SystemExit: + pass +except Exception as e: + import traceback + print("Exception in oepydehshell-internal: " + str(e)) + traceback.print_exc() + time.sleep(5) +finally: + readline.write_history_file(histfile) |