X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=bup.git;a=blobdiff_plain;f=main.py;h=c0679e32919fa0a6b721ce70bd4eed8add70dcc4;hp=feb3013edc1b2ffa64adf77b74bd40d7a6159387;hb=HEAD;hpb=9665d202d372b499802e759f29c97f3861eb247c diff --git a/main.py b/main.py deleted file mode 100755 index feb3013..0000000 --- a/main.py +++ /dev/null @@ -1,192 +0,0 @@ -#!/usr/bin/env python -import sys, os, subprocess, signal, getopt - -argv = sys.argv -exe = 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.helpers import * - -# after running 'bup newliner', the tty_width() ioctl won't work anymore -os.environ['WIDTH'] = str(tty_width()) - -def usage(): - log('Usage: bup [-?|--help] [-d BUP_DIR] [--debug] ' - ' [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") - sys.exit(99) - - -if len(argv) < 2: - usage() - -# Handle global options. -try: - global_args, subcmd = getopt.getopt(argv[1:], '?VDd:', - ['help', 'version', 'debug', 'bup-dir=']) -except getopt.GetoptError, ex: - log('error: ' + ex.msg + '\n') - usage() - -help_requested = None -dest_dir = None - -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 ['-d', '--bup-dir']: - dest_dir = opt[1] - else: - log('error: unexpected option "%s"\n' % opt[0]) - usage() - -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() - -subcmd_env = os.environ -if dest_dir: - subcmd_env.update({"BUP_DIR" : dest_dir}) - -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 - -if not os.path.exists(subpath(subcmd_name)): - log('error: unknown command "%s"\n' % subcmd_name) - usage() - -already_fixed = atoi(os.environ.get('BUP_FORCE_TTY')) -if subcmd_name in ['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 - - -class SigException(Exception): - def __init__(self, signum): - self.signum = signum - Exception.__init__(self, 'signal %d received' % signum) -def handler(signum, frame): - raise SigException(signum) - -signal.signal(signal.SIGTERM, handler) -signal.signal(signal.SIGINT, handler) - -ret = 95 -p = None -try: - try: - p = subprocess.Popen([subpath(subcmd_name)] + subcmd[1:], - 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. - try: - ret = p.wait() - break - except SigException, e: - log('\nbup: %s\n' % e) - os.kill(p.pid, e.signum) - ret = 94 - except OSError, e: - log('%s: %s\n' % (subpath(subcmd_name), 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)