+++ /dev/null
-#!/bin/sh
-"""": # -*-python-*- # -*-python-*-
-bup_python="$(dirname "$0")/cmd/bup-python" || exit $?
-exec "$bup_python" "$0" ${1+"$@"}
-"""
-# end of bup preamble
-
-import sys, os, subprocess, signal, getopt
-
-
-argv = sys.argv
-exe = os.path.realpath(argv[0])
-exepath = os.path.split(exe)[0] or '.'
-exeprefix = os.path.split(os.path.abspath(exepath))[0]
-
-# fix the PYTHONPATH to include our lib dir
-if os.path.exists("%s/lib/bup/cmd/." % exeprefix):
- # installed binary in /.../bin.
- # eg. /usr/bin/bup means /usr/lib/bup/... is where our libraries are.
- cmdpath = "%s/lib/bup/cmd" % exeprefix
- libpath = "%s/lib/bup" % exeprefix
- resourcepath = libpath
-else:
- # running from the src directory without being installed first
- cmdpath = os.path.join(exepath, 'cmd')
- libpath = os.path.join(exepath, 'lib')
- resourcepath = libpath
-sys.path[:0] = [libpath]
-os.environ['PYTHONPATH'] = libpath + ':' + os.environ.get('PYTHONPATH', '')
-os.environ['BUP_MAIN_EXE'] = os.path.abspath(exe)
-os.environ['BUP_RESOURCE_PATH'] = resourcepath
-
-
-from bup import helpers
-from bup.compat import wrap_main
-from bup.helpers import atoi, columnate, debug1, log, tty_width
-
-
-# after running 'bup newliner', the tty_width() ioctl won't work anymore
-os.environ['WIDTH'] = str(tty_width())
-
-def usage(msg=""):
- log('Usage: bup [-?|--help] [-d BUP_DIR] [--debug] [--profile] '
- '<command> [options...]\n\n')
- common = dict(
- ftp = 'Browse backup sets using an ftp-like client',
- fsck = 'Check backup sets for damage and add redundancy information',
- fuse = 'Mount your backup sets as a filesystem',
- help = 'Print detailed help for the given command',
- index = 'Create or display the index of files to back up',
- on = 'Backup a remote machine to the local one',
- restore = 'Extract files from a backup set',
- save = 'Save files into a backup set (note: run "bup index" first)',
- tag = 'Tag commits for easier access',
- web = 'Launch a web server to examine backup sets',
- )
-
- log('Common commands:\n')
- for cmd,synopsis in sorted(common.items()):
- log(' %-10s %s\n' % (cmd, synopsis))
- log('\n')
-
- log('Other available commands:\n')
- cmds = []
- for c in sorted(os.listdir(cmdpath) + os.listdir(exepath)):
- if c.startswith('bup-') and c.find('.') < 0:
- cname = c[4:]
- if cname not in common:
- cmds.append(c[4:])
- log(columnate(cmds, ' '))
- log('\n')
-
- log("See 'bup help COMMAND' for more information on " +
- "a specific command.\n")
- if msg:
- log("\n%s\n" % msg)
- sys.exit(99)
-
-
-if len(argv) < 2:
- usage()
-
-# Handle global options.
-try:
- optspec = ['help', 'version', 'debug', 'profile', 'bup-dir=']
- global_args, subcmd = getopt.getopt(argv[1:], '?VDd:', optspec)
-except getopt.GetoptError as ex:
- usage('error: %s' % ex.msg)
-
-help_requested = None
-do_profile = False
-
-for opt in global_args:
- if opt[0] in ['-?', '--help']:
- help_requested = True
- elif opt[0] in ['-V', '--version']:
- subcmd = ['version']
- elif opt[0] in ['-D', '--debug']:
- helpers.buglvl += 1
- os.environ['BUP_DEBUG'] = str(helpers.buglvl)
- elif opt[0] in ['--profile']:
- do_profile = True
- elif opt[0] in ['-d', '--bup-dir']:
- os.environ['BUP_DIR'] = opt[1]
- else:
- usage('error: unexpected option "%s"' % opt[0])
-
-# Make BUP_DIR absolute, so we aren't affected by chdir (i.e. save -C, etc.).
-if 'BUP_DIR' in os.environ:
- os.environ['BUP_DIR'] = os.path.abspath(os.environ['BUP_DIR'])
-
-if len(subcmd) == 0:
- if help_requested:
- subcmd = ['help']
- else:
- usage()
-
-if help_requested and subcmd[0] != 'help':
- subcmd = ['help'] + subcmd
-
-if len(subcmd) > 1 and subcmd[1] == '--help' and subcmd[0] != 'help':
- subcmd = ['help', subcmd[0]] + subcmd[2:]
-
-subcmd_name = subcmd[0]
-if not subcmd_name:
- usage()
-
-def subpath(s):
- sp = os.path.join(exepath, 'bup-%s' % s)
- if not os.path.exists(sp):
- sp = os.path.join(cmdpath, 'bup-%s' % s)
- return sp
-
-subcmd[0] = subpath(subcmd_name)
-if not os.path.exists(subcmd[0]):
- usage('error: unknown command "%s"' % subcmd_name)
-
-already_fixed = atoi(os.environ.get('BUP_FORCE_TTY'))
-if subcmd_name in ['mux', 'ftp', 'help']:
- already_fixed = True
-fix_stdout = not already_fixed and os.isatty(1)
-fix_stderr = not already_fixed and os.isatty(2)
-
-def force_tty():
- if fix_stdout or fix_stderr:
- amt = (fix_stdout and 1 or 0) + (fix_stderr and 2 or 0)
- os.environ['BUP_FORCE_TTY'] = str(amt)
- os.setsid() # make sure ctrl-c is sent just to us, not to child too
-
-if fix_stdout or fix_stderr:
- realf = fix_stderr and 2 or 1
- drealf = os.dup(realf) # Popen goes crazy with stdout=2
- n = subprocess.Popen([subpath('newliner')],
- stdin=subprocess.PIPE, stdout=drealf,
- close_fds=True, preexec_fn=force_tty)
- os.close(drealf)
- outf = fix_stdout and n.stdin.fileno() or None
- errf = fix_stderr and n.stdin.fileno() or None
-else:
- n = None
- outf = None
- errf = None
-
-ret = 95
-p = None
-forward_signals = True
-
-def handler(signum, frame):
- debug1('\nbup: signal %d received\n' % signum)
- if not p or not forward_signals:
- return
- if signum != signal.SIGTSTP:
- os.kill(p.pid, signum)
- else: # SIGTSTP: stop the child, then ourselves.
- os.kill(p.pid, signal.SIGSTOP)
- signal.signal(signal.SIGTSTP, signal.SIG_DFL)
- os.kill(os.getpid(), signal.SIGTSTP)
- # Back from suspend -- reestablish the handler.
- signal.signal(signal.SIGTSTP, handler)
- ret = 94
-
-def main():
- signal.signal(signal.SIGTERM, handler)
- signal.signal(signal.SIGINT, handler)
- signal.signal(signal.SIGTSTP, handler)
- signal.signal(signal.SIGCONT, handler)
-
- try:
- try:
- c = (do_profile and [sys.executable, '-m', 'cProfile'] or []) + subcmd
- if not n and not outf and not errf:
- # shortcut when no bup-newliner stuff is needed
- os.execvp(c[0], c)
- else:
- p = subprocess.Popen(c, stdout=outf, stderr=errf,
- preexec_fn=force_tty)
- while 1:
- # if we get a signal while waiting, we have to keep waiting, just
- # in case our child doesn't die.
- ret = p.wait()
- forward_signals = False
- break
- except OSError as e:
- log('%s: %s\n' % (subcmd[0], e))
- ret = 98
- finally:
- if p and p.poll() == None:
- os.kill(p.pid, signal.SIGTERM)
- p.wait()
- if n:
- n.stdin.close()
- try:
- n.wait()
- except:
- pass
- sys.exit(ret)
-
-wrap_main(main)
projects / bup.git / blobdiff