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authorRobert Yang <liezhi.yang@windriver.com>2018-12-04 10:06:00 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-12-08 22:36:30 +0000
commit9cc4f12d2aef366a593c7977d3818a3002b1d8bf (patch)
tree1a6907f778497f5e7873b842eb458b1c47b964ac
parent5a2a95b0396e39662968690b3065d2f88167a71c (diff)
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pysh: Remove unused modules
We don't use these modules in bitbake, so remove them. And pysh's author declared that pysh is no longer maintained: http://pysh.sourceforge.net/ Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--lib/bb/pysh/builtin.py710
-rw-r--r--lib/bb/pysh/interp.py1367
-rw-r--r--lib/bb/pysh/lsprof.py116
-rw-r--r--lib/bb/pysh/pysh.py167
-rw-r--r--lib/bb/pysh/subprocess_fix.py77
5 files changed, 0 insertions, 2437 deletions
diff --git a/lib/bb/pysh/builtin.py b/lib/bb/pysh/builtin.py
deleted file mode 100644
index a8814dc330..0000000000
--- a/lib/bb/pysh/builtin.py
+++ /dev/null
@@ -1,710 +0,0 @@
-# builtin.py - builtins and utilities definitions for pysh.
-#
-# Copyright 2007 Patrick Mezard
-#
-# This software may be used and distributed according to the terms
-# of the GNU General Public License, incorporated herein by reference.
-
-"""Builtin and internal utilities implementations.
-
-- Beware not to use python interpreter environment as if it were the shell
-environment. For instance, commands working directory must be explicitely handled
-through env['PWD'] instead of relying on python working directory.
-"""
-import errno
-import optparse
-import os
-import re
-import subprocess
-import sys
-import time
-
-def has_subprocess_bug():
- return getattr(subprocess, 'list2cmdline') and \
- ( subprocess.list2cmdline(['']) == '' or \
- subprocess.list2cmdline(['foo|bar']) == 'foo|bar')
-
-# Detect python bug 1634343: "subprocess swallows empty arguments under win32"
-# <http://sourceforge.net/tracker/index.php?func=detail&aid=1634343&group_id=5470&atid=105470>
-# Also detect: "[ 1710802 ] subprocess must escape redirection characters under win32"
-# <http://sourceforge.net/tracker/index.php?func=detail&aid=1710802&group_id=5470&atid=105470>
-if has_subprocess_bug():
- import subprocess_fix
- subprocess.list2cmdline = subprocess_fix.list2cmdline
-
-from sherrors import *
-
-class NonExitingParser(optparse.OptionParser):
- """OptionParser default behaviour upon error is to print the error message and
- exit. Raise a utility error instead.
- """
- def error(self, msg):
- raise UtilityError(msg)
-
-#-------------------------------------------------------------------------------
-# set special builtin
-#-------------------------------------------------------------------------------
-OPT_SET = NonExitingParser(usage="set - set or unset options and positional parameters")
-OPT_SET.add_option( '-f', action='store_true', dest='has_f', default=False,
- help='The shell shall disable pathname expansion.')
-OPT_SET.add_option('-e', action='store_true', dest='has_e', default=False,
- help="""When this option is on, if a simple command fails for any of the \
- reasons listed in Consequences of Shell Errors or returns an exit status \
- value >0, and is not part of the compound list following a while, until, \
- or if keyword, and is not a part of an AND or OR list, and is not a \
- pipeline preceded by the ! reserved word, then the shell shall immediately \
- exit.""")
-OPT_SET.add_option('-x', action='store_true', dest='has_x', default=False,
- help="""The shell shall write to standard error a trace for each command \
- after it expands the command and before it executes it. It is unspecified \
- whether the command that turns tracing off is traced.""")
-
-def builtin_set(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_SET.parse_args(args)
- env = interp.get_env()
-
- if option.has_f:
- env.set_opt('-f')
- if option.has_e:
- env.set_opt('-e')
- if option.has_x:
- env.set_opt('-x')
- return 0
-
-#-------------------------------------------------------------------------------
-# shift special builtin
-#-------------------------------------------------------------------------------
-def builtin_shift(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- params = interp.get_env().get_positional_args()
- if args:
- try:
- n = int(args[0])
- if n > len(params):
- raise ValueError()
- except ValueError:
- return 1
- else:
- n = 1
-
- params[:n] = []
- interp.get_env().set_positional_args(params)
- return 0
-
-#-------------------------------------------------------------------------------
-# export special builtin
-#-------------------------------------------------------------------------------
-OPT_EXPORT = NonExitingParser(usage="set - set or unset options and positional parameters")
-OPT_EXPORT.add_option('-p', action='store_true', dest='has_p', default=False)
-
-def builtin_export(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_EXPORT.parse_args(args)
- if option.has_p:
- raise NotImplementedError()
-
- for arg in args:
- try:
- name, value = arg.split('=', 1)
- except ValueError:
- name, value = arg, None
- env = interp.get_env().export(name, value)
-
- return 0
-
-#-------------------------------------------------------------------------------
-# return special builtin
-#-------------------------------------------------------------------------------
-def builtin_return(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- res = 0
- if args:
- try:
- res = int(args[0])
- except ValueError:
- res = 0
- if not 0<=res<=255:
- res = 0
-
- # BUG: should be last executed command exit code
- raise ReturnSignal(res)
-
-#-------------------------------------------------------------------------------
-# trap special builtin
-#-------------------------------------------------------------------------------
-def builtin_trap(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- if len(args) < 2:
- stderr.write('trap: usage: trap [[arg] signal_spec ...]\n')
- return 2
-
- action = args[0]
- for sig in args[1:]:
- try:
- env.traps[sig] = action
- except Exception as e:
- stderr.write('trap: %s\n' % str(e))
- return 0
-
-#-------------------------------------------------------------------------------
-# unset special builtin
-#-------------------------------------------------------------------------------
-OPT_UNSET = NonExitingParser("unset - unset values and attributes of variables and functions")
-OPT_UNSET.add_option( '-f', action='store_true', dest='has_f', default=False)
-OPT_UNSET.add_option( '-v', action='store_true', dest='has_v', default=False)
-
-def builtin_unset(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_UNSET.parse_args(args)
-
- status = 0
- env = interp.get_env()
- for arg in args:
- try:
- if option.has_f:
- env.remove_function(arg)
- else:
- del env[arg]
- except KeyError:
- pass
- except VarAssignmentError:
- status = 1
-
- return status
-
-#-------------------------------------------------------------------------------
-# wait special builtin
-#-------------------------------------------------------------------------------
-def builtin_wait(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- return interp.wait([int(arg) for arg in args])
-
-#-------------------------------------------------------------------------------
-# cat utility
-#-------------------------------------------------------------------------------
-def utility_cat(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- if not args:
- args = ['-']
-
- status = 0
- for arg in args:
- if arg == '-':
- data = stdin.read()
- else:
- path = os.path.join(env['PWD'], arg)
- try:
- f = file(path, 'rb')
- try:
- data = f.read()
- finally:
- f.close()
- except IOError as e:
- if e.errno != errno.ENOENT:
- raise
- status = 1
- continue
- stdout.write(data)
- stdout.flush()
- return status
-
-#-------------------------------------------------------------------------------
-# cd utility
-#-------------------------------------------------------------------------------
-OPT_CD = NonExitingParser("cd - change the working directory")
-
-def utility_cd(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_CD.parse_args(args)
- env = interp.get_env()
-
- directory = None
- printdir = False
- if not args:
- home = env.get('HOME')
- if home:
- # Unspecified, do nothing
- return 0
- else:
- directory = home
- elif len(args)==1:
- directory = args[0]
- if directory=='-':
- if 'OLDPWD' not in env:
- raise UtilityError("OLDPWD not set")
- printdir = True
- directory = env['OLDPWD']
- else:
- raise UtilityError("too many arguments")
-
- curpath = None
- # Absolute directories will be handled correctly by the os.path.join call.
- if not directory.startswith('.') and not directory.startswith('..'):
- cdpaths = env.get('CDPATH', '.').split(';')
- for cdpath in cdpaths:
- p = os.path.join(cdpath, directory)
- if os.path.isdir(p):
- curpath = p
- break
-
- if curpath is None:
- curpath = directory
- curpath = os.path.join(env['PWD'], directory)
-
- env['OLDPWD'] = env['PWD']
- env['PWD'] = curpath
- if printdir:
- stdout.write('%s\n' % curpath)
- return 0
-
-#-------------------------------------------------------------------------------
-# colon utility
-#-------------------------------------------------------------------------------
-def utility_colon(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- return 0
-
-#-------------------------------------------------------------------------------
-# echo utility
-#-------------------------------------------------------------------------------
-def utility_echo(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- # Echo only takes arguments, no options. Use printf if you need fancy stuff.
- output = ' '.join(args) + '\n'
- stdout.write(output)
- stdout.flush()
- return 0
-
-#-------------------------------------------------------------------------------
-# egrep utility
-#-------------------------------------------------------------------------------
-# egrep is usually a shell script.
-# Unfortunately, pysh does not support shell scripts *with arguments* right now,
-# so the redirection is implemented here, assuming grep is available.
-def utility_egrep(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- return run_command('grep', ['-E'] + args, interp, env, stdin, stdout,
- stderr, debugflags)
-
-#-------------------------------------------------------------------------------
-# env utility
-#-------------------------------------------------------------------------------
-def utility_env(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- if args and args[0]=='-i':
- raise NotImplementedError('env: -i option is not implemented')
-
- i = 0
- for arg in args:
- if '=' not in arg:
- break
- # Update the current environment
- name, value = arg.split('=', 1)
- env[name] = value
- i += 1
-
- if args[i:]:
- # Find then execute the specified interpreter
- utility = env.find_in_path(args[i])
- if not utility:
- return 127
- args[i:i+1] = utility
- name = args[i]
- args = args[i+1:]
- try:
- return run_command(name, args, interp, env, stdin, stdout, stderr,
- debugflags)
- except UtilityError:
- stderr.write('env: failed to execute %s' % ' '.join([name]+args))
- return 126
- else:
- for pair in env.get_variables().iteritems():
- stdout.write('%s=%s\n' % pair)
- return 0
-
-#-------------------------------------------------------------------------------
-# exit utility
-#-------------------------------------------------------------------------------
-def utility_exit(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- res = None
- if args:
- try:
- res = int(args[0])
- except ValueError:
- res = None
- if not 0<=res<=255:
- res = None
-
- if res is None:
- # BUG: should be last executed command exit code
- res = 0
-
- raise ExitSignal(res)
-
-#-------------------------------------------------------------------------------
-# fgrep utility
-#-------------------------------------------------------------------------------
-# see egrep
-def utility_fgrep(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- return run_command('grep', ['-F'] + args, interp, env, stdin, stdout,
- stderr, debugflags)
-
-#-------------------------------------------------------------------------------
-# gunzip utility
-#-------------------------------------------------------------------------------
-# see egrep
-def utility_gunzip(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- return run_command('gzip', ['-d'] + args, interp, env, stdin, stdout,
- stderr, debugflags)
-
-#-------------------------------------------------------------------------------
-# kill utility
-#-------------------------------------------------------------------------------
-def utility_kill(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- for arg in args:
- pid = int(arg)
- status = subprocess.call(['pskill', '/T', str(pid)],
- shell=True,
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE)
- # pskill is asynchronous, hence the stupid polling loop
- while 1:
- p = subprocess.Popen(['pslist', str(pid)],
- shell=True,
- stdout=subprocess.PIPE,
- stderr=subprocess.STDOUT)
- output = p.communicate()[0]
- if ('process %d was not' % pid) in output:
- break
- time.sleep(1)
- return status
-
-#-------------------------------------------------------------------------------
-# mkdir utility
-#-------------------------------------------------------------------------------
-OPT_MKDIR = NonExitingParser("mkdir - make directories.")
-OPT_MKDIR.add_option('-p', action='store_true', dest='has_p', default=False)
-
-def utility_mkdir(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- # TODO: implement umask
- # TODO: implement proper utility error report
- option, args = OPT_MKDIR.parse_args(args)
- for arg in args:
- path = os.path.join(env['PWD'], arg)
- if option.has_p:
- try:
- os.makedirs(path)
- except IOError as e:
- if e.errno != errno.EEXIST:
- raise
- else:
- os.mkdir(path)
- return 0
-
-#-------------------------------------------------------------------------------
-# netstat utility
-#-------------------------------------------------------------------------------
-def utility_netstat(name, args, interp, env, stdin, stdout, stderr, debugflags):
- # Do you really expect me to implement netstat ?
- # This empty form is enough for Mercurial tests since it's
- # supposed to generate nothing upon success. Faking this test
- # is not a big deal either.
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- return 0
-
-#-------------------------------------------------------------------------------
-# pwd utility
-#-------------------------------------------------------------------------------
-OPT_PWD = NonExitingParser("pwd - return working directory name")
-OPT_PWD.add_option('-L', action='store_true', dest='has_L', default=True,
- help="""If the PWD environment variable contains an absolute pathname of \
- the current directory that does not contain the filenames dot or dot-dot, \
- pwd shall write this pathname to standard output. Otherwise, the -L option \
- shall behave as the -P option.""")
-OPT_PWD.add_option('-P', action='store_true', dest='has_L', default=False,
- help="""The absolute pathname written shall not contain filenames that, in \
- the context of the pathname, refer to files of type symbolic link.""")
-
-def utility_pwd(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_PWD.parse_args(args)
- stdout.write('%s\n' % env['PWD'])
- return 0
-
-#-------------------------------------------------------------------------------
-# printf utility
-#-------------------------------------------------------------------------------
-RE_UNESCAPE = re.compile(r'(\\x[a-zA-Z0-9]{2}|\\[0-7]{1,3}|\\.)')
-
-def utility_printf(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- def replace(m):
- assert m.group()
- g = m.group()[1:]
- if g.startswith('x'):
- return chr(int(g[1:], 16))
- if len(g) <= 3 and len([c for c in g if c in '01234567']) == len(g):
- # Yay, an octal number
- return chr(int(g, 8))
- return {
- 'a': '\a',
- 'b': '\b',
- 'f': '\f',
- 'n': '\n',
- 'r': '\r',
- 't': '\t',
- 'v': '\v',
- '\\': '\\',
- }.get(g)
-
- # Convert escape sequences
- format = re.sub(RE_UNESCAPE, replace, args[0])
- stdout.write(format % tuple(args[1:]))
- return 0
-
-#-------------------------------------------------------------------------------
-# true utility
-#-------------------------------------------------------------------------------
-def utility_true(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- return 0
-
-#-------------------------------------------------------------------------------
-# sed utility
-#-------------------------------------------------------------------------------
-RE_SED = re.compile(r'^s(.).*\1[a-zA-Z]*$')
-
-# cygwin sed fails with some expressions when they do not end with a single space.
-# see unit tests for details. Interestingly, the same expressions works perfectly
-# in cygwin shell.
-def utility_sed(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- # Scan pattern arguments and append a space if necessary
- for i in range(len(args)):
- if not RE_SED.search(args[i]):
- continue
- args[i] = args[i] + ' '
-
- return run_command(name, args, interp, env, stdin, stdout,
- stderr, debugflags)
-
-#-------------------------------------------------------------------------------
-# sleep utility
-#-------------------------------------------------------------------------------
-def utility_sleep(name, args, interp, env, stdin, stdout, stderr, debugflags):
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
- time.sleep(int(args[0]))
- return 0
-
-#-------------------------------------------------------------------------------
-# sort utility
-#-------------------------------------------------------------------------------
-OPT_SORT = NonExitingParser("sort - sort, merge, or sequence check text files")
-
-def utility_sort(name, args, interp, env, stdin, stdout, stderr, debugflags):
-
- def sort(path):
- if path == '-':
- lines = stdin.readlines()
- else:
- try:
- f = file(path)
- try:
- lines = f.readlines()
- finally:
- f.close()
- except IOError as e:
- stderr.write(str(e) + '\n')
- return 1
-
- if lines and lines[-1][-1]!='\n':
- lines[-1] = lines[-1] + '\n'
- return lines
-
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- option, args = OPT_SORT.parse_args(args)
- alllines = []
-
- if len(args)<=0:
- args += ['-']
-
- # Load all files lines
- curdir = os.getcwd()
- try:
- os.chdir(env['PWD'])
- for path in args:
- alllines += sort(path)
- finally:
- os.chdir(curdir)
-
- alllines.sort()
- for line in alllines:
- stdout.write(line)
- return 0
-
-#-------------------------------------------------------------------------------
-# hg utility
-#-------------------------------------------------------------------------------
-
-hgcommands = [
- 'add',
- 'addremove',
- 'commit', 'ci',
- 'debugrename',
- 'debugwalk',
- 'falabala', # Dummy command used in a mercurial test
- 'incoming',
- 'locate',
- 'pull',
- 'push',
- 'qinit',
- 'remove', 'rm',
- 'rename', 'mv',
- 'revert',
- 'showconfig',
- 'status', 'st',
- 'strip',
- ]
-
-def rewriteslashes(name, args):
- # Several hg commands output file paths, rewrite the separators
- if len(args) > 1 and name.lower().endswith('python') \
- and args[0].endswith('hg'):
- for cmd in hgcommands:
- if cmd in args[1:]:
- return True
-
- # svn output contains many paths with OS specific separators.
- # Normalize these to unix paths.
- base = os.path.basename(name)
- if base.startswith('svn'):
- return True
-
- return False
-
-def rewritehg(output):
- if not output:
- return output
- # Rewrite os specific messages
- output = output.replace(': The system cannot find the file specified',
- ': No such file or directory')
- output = re.sub(': Access is denied.*$', ': Permission denied', output)
- output = output.replace(': No connection could be made because the target machine actively refused it',
- ': Connection refused')
- return output
-
-
-def run_command(name, args, interp, env, stdin, stdout,
- stderr, debugflags):
- # Execute the command
- if 'debug-utility' in debugflags:
- print interp.log(' '.join([name, str(args), interp['PWD']]) + '\n')
-
- hgbin = interp.options().hgbinary
- ishg = hgbin and ('hg' in name or args and 'hg' in args[0])
- unixoutput = 'cygwin' in name or ishg
-
- exec_env = env.get_variables()
- try:
- # BUG: comparing file descriptor is clearly not a reliable way to tell
- # whether they point on the same underlying object. But in pysh limited
- # scope this is usually right, we do not expect complicated redirections
- # besides usual 2>&1.
- # Still there is one case we have but cannot deal with is when stdout
- # and stderr are redirected *by pysh caller*. This the reason for the
- # --redirect pysh() option.
- # Now, we want to know they are the same because we sometimes need to
- # transform the command output, mostly remove CR-LF to ensure that
- # command output is unix-like. Cygwin utilies are a special case because
- # they explicitely set their output streams to binary mode, so we have
- # nothing to do. For all others commands, we have to guess whether they
- # are sending text data, in which case the transformation must be done.
- # Again, the NUL character test is unreliable but should be enough for
- # hg tests.
- redirected = stdout.fileno()==stderr.fileno()
- if not redirected:
- p = subprocess.Popen([name] + args, cwd=env['PWD'], env=exec_env,
- stdin=stdin, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
- else:
- p = subprocess.Popen([name] + args, cwd=env['PWD'], env=exec_env,
- stdin=stdin, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
- out, err = p.communicate()
- except WindowsError as e:
- raise UtilityError(str(e))
-
- if not unixoutput:
- def encode(s):
- if '\0' in s:
- return s
- return s.replace('\r\n', '\n')
- else:
- encode = lambda s: s
-
- if rewriteslashes(name, args):
- encode1_ = encode
- def encode(s):
- s = encode1_(s)
- s = s.replace('\\\\', '\\')
- s = s.replace('\\', '/')
- return s
-
- if ishg:
- encode2_ = encode
- def encode(s):
- return rewritehg(encode2_(s))
-
- stdout.write(encode(out))
- if not redirected:
- stderr.write(encode(err))
- return p.returncode
-
diff --git a/lib/bb/pysh/interp.py b/lib/bb/pysh/interp.py
deleted file mode 100644
index d14ecf3c6d..0000000000
--- a/lib/bb/pysh/interp.py
+++ /dev/null
@@ -1,1367 +0,0 @@
-# interp.py - shell interpreter for pysh.
-#
-# Copyright 2007 Patrick Mezard
-#
-# This software may be used and distributed according to the terms
-# of the GNU General Public License, incorporated herein by reference.
-
-"""Implement the shell interpreter.
-
-Most references are made to "The Open Group Base Specifications Issue 6".
-<http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html>
-"""
-# TODO: document the fact input streams must implement fileno() so Popen will work correctly.
-# it requires non-stdin stream to be implemented as files. Still to be tested...
-# DOC: pathsep is used in PATH instead of ':'. Clearly, there are path syntax issues here.
-# TODO: stop command execution upon error.
-# TODO: sort out the filename/io_number mess. It should be possible to use filenames only.
-# TODO: review subshell implementation
-# TODO: test environment cloning for non-special builtins
-# TODO: set -x should not rebuild commands from tokens, assignments/redirections are lost
-# TODO: unit test for variable assignment
-# TODO: test error management wrt error type/utility type
-# TODO: test for binary output everywhere
-# BUG: debug-parsing does not pass log file to PLY. Maybe a PLY upgrade is necessary.
-import base64
-import cPickle as pickle
-import errno
-import glob
-import os
-import re
-import subprocess
-import sys
-import tempfile
-
-try:
- s = set()
- del s
-except NameError:
- from Set import Set as set
-
-import builtin
-from sherrors import *
-import pyshlex
-import pyshyacc
-
-def mappend(func, *args, **kargs):
- """Like map but assume func returns a list. Returned lists are merged into
- a single one.
- """
- return reduce(lambda a,b: a+b, map(func, *args, **kargs), [])
-
-class FileWrapper:
- """File object wrapper to ease debugging.
-
- Allow mode checking and implement file duplication through a simple
- reference counting scheme. Not sure the latter is really useful since
- only real file descriptors can be used.
- """
- def __init__(self, mode, file, close=True):
- if mode not in ('r', 'w', 'a'):
- raise IOError('invalid mode: %s' % mode)
- self._mode = mode
- self._close = close
- if isinstance(file, FileWrapper):
- if file._refcount[0] <= 0:
- raise IOError(0, 'Error')
- self._refcount = file._refcount
- self._refcount[0] += 1
- self._file = file._file
- else:
- self._refcount = [1]
- self._file = file
-
- def dup(self):
- return FileWrapper(self._mode, self, self._close)
-
- def fileno(self):
- """fileno() should be only necessary for input streams."""
- return self._file.fileno()
-
- def read(self, size=-1):
- if self._mode!='r':
- raise IOError(0, 'Error')
- return self._file.read(size)
-
- def readlines(self, *args, **kwargs):
- return self._file.readlines(*args, **kwargs)
-
- def write(self, s):
- if self._mode not in ('w', 'a'):
- raise IOError(0, 'Error')
- return self._file.write(s)
-
- def flush(self):
- self._file.flush()
-
- def close(self):
- if not self._refcount:
- return
- assert self._refcount[0] > 0
-
- self._refcount[0] -= 1
- if self._refcount[0] == 0:
- self._mode = 'c'
- if self._close:
- self._file.close()
- self._refcount = None
-
- def mode(self):
- return self._mode
-
- def __getattr__(self, name):
- if name == 'name':
- self.name = getattr(self._file, name)
- return self.name
- else:
- raise AttributeError(name)
-
- def __del__(self):
- self.close()
-
-
-def win32_open_devnull(mode):
- return open('NUL', mode)
-
-
-class Redirections:
- """Stores open files and their mapping to pseudo-sh file descriptor.
- """
- # BUG: redirections are not handled correctly: 1>&3 2>&3 3>&4 does
- # not make 1 to redirect to 4
- def __init__(self, stdin=None, stdout=None, stderr=None):
- self._descriptors = {}
- if stdin is not None:
- self._add_descriptor(0, stdin)
- if stdout is not None:
- self._add_descriptor(1, stdout)
- if stderr is not None:
- self._add_descriptor(2, stderr)
-
- def add_here_document(self, interp, name, content, io_number=None):
- if io_number is None:
- io_number = 0
-
- if name==pyshlex.unquote_wordtree(name):
- content = interp.expand_here_document(('TOKEN', content))
-
- # Write document content in a temporary file
- tmp = tempfile.TemporaryFile()
- try:
- tmp.write(content)
- tmp.flush()
- tmp.seek(0)
- self._add_descriptor(io_number, FileWrapper('r', tmp))
- except:
- tmp.close()
- raise
-
- def add(self, interp, op, filename, io_number=None):
- if op not in ('<', '>', '>|', '>>', '>&'):
- # TODO: add descriptor duplication and here_documents
- raise RedirectionError('Unsupported redirection operator "%s"' % op)
-
- if io_number is not None:
- io_number = int(io_number)
-
- if (op == '>&' and filename.isdigit()) or filename=='-':
- # No expansion for file descriptors, quote them if you want a filename
- fullname = filename
- else:
- if filename.startswith('/'):
- # TODO: win32 kludge
- if filename=='/dev/null':
- fullname = 'NUL'
- else:
- # TODO: handle absolute pathnames, they are unlikely to exist on the
- # current platform (win32 for instance).
- raise NotImplementedError()
- else:
- fullname = interp.expand_redirection(('TOKEN', filename))
- if not fullname:
- raise RedirectionError('%s: ambiguous redirect' % filename)
- # Build absolute path based on PWD
- fullname = os.path.join(interp.get_env()['PWD'], fullname)
-
- if op=='<':
- return self._add_input_redirection(interp, fullname, io_number)
- elif op in ('>', '>|'):
- clobber = ('>|'==op)
- return self._add_output_redirection(interp, fullname, io_number, clobber)
- elif op=='>>':
- return self._add_output_appending(interp, fullname, io_number)
- elif op=='>&':
- return self._dup_output_descriptor(fullname, io_number)
-
- def close(self):
- if self._descriptors is not None:
- for desc in self._descriptors.itervalues():
- desc.flush()
- desc.close()
- self._descriptors = None
-
- def stdin(self):
- return self._descriptors[0]
-
- def stdout(self):
- return self._descriptors[1]
-
- def stderr(self):
- return self._descriptors[2]
-
- def clone(self):
- clone = Redirections()
- for desc, fileobj in self._descriptors.iteritems():
- clone._descriptors[desc] = fileobj.dup()
- return clone
-
- def _add_output_redirection(self, interp, filename, io_number, clobber):
- if io_number is None:
- # io_number default to standard output
- io_number = 1
-
- if not clobber and interp.get_env().has_opt('-C') and os.path.isfile(filename):
- # File already exist in no-clobber mode, bail out
- raise RedirectionError('File "%s" already exists' % filename)
-
- # Open and register
- self._add_file_descriptor(io_number, filename, 'w')
-
- def _add_output_appending(self, interp, filename, io_number):
- if io_number is None:
- io_number = 1
- self._add_file_descriptor(io_number, filename, 'a')
-
- def _add_input_redirection(self, interp, filename, io_number):
- if io_number is None:
- io_number = 0
- self._add_file_descriptor(io_number, filename, 'r')
-
- def _add_file_descriptor(self, io_number, filename, mode):
- try:
- if filename.startswith('/'):
- if filename=='/dev/null':
- f = win32_open_devnull(mode+'b')
- else:
- # TODO: handle absolute pathnames, they are unlikely to exist on the
- # current platform (win32 for instance).
- raise NotImplementedError('cannot open absolute path %s' % repr(filename))
- else:
- f = file(filename, mode+'b')
- except IOError as e:
- raise RedirectionError(str(e))
-
- wrapper = None
- try:
- wrapper = FileWrapper(mode, f)
- f = None
- self._add_descriptor(io_number, wrapper)
- except:
- if f: f.close()
- if wrapper: wrapper.close()
- raise
-
- def _dup_output_descriptor(self, source_fd, dest_fd):
- if source_fd is None:
- source_fd = 1
- self._dup_file_descriptor(source_fd, dest_fd, 'w')
-
- def _dup_file_descriptor(self, source_fd, dest_fd, mode):
- source_fd = int(source_fd)
- if source_fd not in self._descriptors:
- raise RedirectionError('"%s" is not a valid file descriptor' % str(source_fd))
- source = self._descriptors[source_fd]
-
- if source.mode()!=mode:
- raise RedirectionError('Descriptor %s cannot be duplicated in mode "%s"' % (str(source), mode))
-
- if dest_fd=='-':
- # Close the source descriptor
- del self._descriptors[source_fd]
- source.close()
- else:
- dest_fd = int(dest_fd)
- if dest_fd not in self._descriptors:
- raise RedirectionError('Cannot replace file descriptor %s' % str(dest_fd))
-
- dest = self._descriptors[dest_fd]
- if dest.mode()!=mode:
- raise RedirectionError('Descriptor %s cannot be cannot be redirected in mode "%s"' % (str(dest), mode))
-
- self._descriptors[dest_fd] = source.dup()
- dest.close()
-
- def _add_descriptor(self, io_number, file):
- io_number = int(io_number)
-
- if io_number in self._descriptors:
- # Close the current descriptor
- d = self._descriptors[io_number]
- del self._descriptors[io_number]
- d.close()
-
- self._descriptors[io_number] = file
-
- def __str__(self):
- names = [('%d=%r' % (k, getattr(v, 'name', None))) for k,v
- in self._descriptors.iteritems()]
- names = ','.join(names)
- return 'Redirections(%s)' % names
-
- def __del__(self):
- self.close()
-
-def cygwin_to_windows_path(path):
- """Turn /cygdrive/c/foo into c:/foo, or return path if it
- is not a cygwin path.
- """
- if not path.startswith('/cygdrive/'):
- return path
- path = path[len('/cygdrive/'):]
- path = path[:1] + ':' + path[1:]
- return path
-
-def win32_to_unix_path(path):
- if path is not None:
- path = path.replace('\\', '/')
- return path
-
-_RE_SHEBANG = re.compile(r'^\#!\s?([^\s]+)(?:\s([^\s]+))?')
-_SHEBANG_CMDS = {
- '/usr/bin/env': 'env',
- '/bin/sh': 'pysh',
- 'python': 'python',
-}
-
-def resolve_shebang(path, ignoreshell=False):
- """Return a list of arguments as shebang interpreter call or an empty list
- if path does not refer to an executable script.
- See <http://www.opengroup.org/austin/docs/austin_51r2.txt>.
-
- ignoreshell - set to True to ignore sh shebangs. Return an empty list instead.
- """
- try:
- f = file(path)
- try:
- # At most 80 characters in the first line
- header = f.read(80).splitlines()[0]
- finally:
- f.close()
-
- m = _RE_SHEBANG.search(header)
- if not m:
- return []
- cmd, arg = m.group(1,2)
- if os.path.isfile(cmd):
- # Keep this one, the hg script for instance contains a weird windows
- # shebang referencing the current python install.
- cmdfile = os.path.basename(cmd).lower()
- if cmdfile == 'python.exe':
- cmd = 'python'
- pass
- elif cmd not in _SHEBANG_CMDS:
- raise CommandNotFound('Unknown interpreter "%s" referenced in '\
- 'shebang' % header)
- cmd = _SHEBANG_CMDS.get(cmd)
- if cmd is None or (ignoreshell and cmd == 'pysh'):
- return []
- if arg is None:
- return [cmd, win32_to_unix_path(path)]
- return [cmd, arg, win32_to_unix_path(path)]
- except IOError as e:
- if e.errno!=errno.ENOENT and \
- (e.errno!=errno.EPERM and not os.path.isdir(path)): # Opening a directory raises EPERM
- raise
- return []
-
-def win32_find_in_path(name, path):
- if isinstance(path, str):
- path = path.split(os.pathsep)
-
- exts = os.environ.get('PATHEXT', '').lower().split(os.pathsep)
- for p in path:
- p_name = os.path.join(p, name)
-
- prefix = resolve_shebang(p_name)
- if prefix:
- return prefix
-
- for ext in exts:
- p_name_ext = p_name + ext
- if os.path.exists(p_name_ext):
- return [win32_to_unix_path(p_name_ext)]
- return []
-
-class Traps(dict):
- def __setitem__(self, key, value):
- if key not in ('EXIT',):
- raise NotImplementedError()
- super(Traps, self).__setitem__(key, value)
-
-# IFS white spaces character class
-_IFS_WHITESPACES = (' ', '\t', '\n')
-
-class Environment:
- """Environment holds environment variables, export table, function
- definitions and whatever is defined in 2.12 "Shell Execution Environment",
- redirection excepted.
- """
- def __init__(self, pwd):
- self._opt = set() #Shell options
-
- self._functions = {}
- self._env = {'?': '0', '#': '0'}
- self._exported = set([
- 'HOME', 'IFS', 'PATH'
- ])
-
- # Set environment vars with side-effects
- self._ifs_ws = None # Set of IFS whitespace characters
- self._ifs_re = None # Regular expression used to split between words using IFS classes
- self['IFS'] = ''.join(_IFS_WHITESPACES) #Default environment values
- self['PWD'] = pwd
- self.traps = Traps()
-
- def clone(self, subshell=False):
- env = Environment(self['PWD'])
- env._opt = set(self._opt)
- for k,v in self.get_variables().iteritems():
- if k in self._exported:
- env.export(k,v)
- elif subshell:
- env[k] = v
-
- if subshell:
- env._functions = dict(self._functions)
-
- return env
-
- def __getitem__(self, key):
- if key in ('@', '*', '-', '$'):
- raise NotImplementedError('%s is not implemented' % repr(key))
- return self._env[key]
-
- def get(self, key, defval=None):
- try:
- return self[key]
- except KeyError:
- return defval
-
- def __setitem__(self, key, value):
- if key=='IFS':
- # Update the whitespace/non-whitespace classes
- self._update_ifs(value)
- elif key=='PWD':
- pwd = os.path.abspath(value)
- if not os.path.isdir(pwd):
- raise VarAssignmentError('Invalid directory %s' % value)
- value = pwd
- elif key in ('?', '!'):
- value = str(int(value))
- self._env[key] = value
-
- def __delitem__(self, key):
- if key in ('IFS', 'PWD', '?'):
- raise VarAssignmentError('%s cannot be unset' % key)
- del self._env[key]
-
- def __contains__(self, item):
- return item in self._env
-
- def set_positional_args(self, args):
- """Set the content of 'args' as positional argument from 1 to len(args).
- Return previous argument as a list of strings.
- """
- # Save and remove previous arguments
- prevargs = []
- for i in range(int(self._env['#'])):
- i = str(i+1)
- prevargs.append(self._env[i])
- del self._env[i]
- self._env['#'] = '0'
-
- #Set new ones
- for i,arg in enumerate(args):
- self._env[str(i+1)] = str(arg)
- self._env['#'] = str(len(args))
-
- return prevargs
-
- def get_positional_args(self):
- return [self._env[str(i+1)] for i in range(int(self._env['#']))]
-
- def get_variables(self):
- return dict(self._env)
-
- def export(self, key, value=None):
- if value is not None:
- self[key] = value
- self._exported.add(key)
-
- def get_exported(self):
- return [(k,self._env.get(k)) for k in self._exported]
-
- def split_fields(self, word):
- if not self._ifs_ws or not word:
- return [word]
- return re.split(self._ifs_re, word)
-
- def _update_ifs(self, value):
- """Update the split_fields related variables when IFS character set is
- changed.
- """
- # TODO: handle NULL IFS
-
- # Separate characters in whitespace and non-whitespace
- chars = set(value)
- ws = [c for c in chars if c in _IFS_WHITESPACES]
- nws = [c for c in chars if c not in _IFS_WHITESPACES]
-
- # Keep whitespaces in a string for left and right stripping
- self._ifs_ws = ''.join(ws)
-
- # Build a regexp to split fields
- trailing = '[' + ''.join([re.escape(c) for c in ws]) + ']'
- if nws:
- # First, the single non-whitespace occurence.
- nws = '[' + ''.join([re.escape(c) for c in nws]) + ']'
- nws = '(?:' + trailing + '*' + nws + trailing + '*' + '|' + trailing + '+)'
- else:
- # Then mix all parts with quantifiers
- nws = trailing + '+'
- self._ifs_re = re.compile(nws)
-
- def has_opt(self, opt, val=None):
- return (opt, val) in self._opt
-
- def set_opt(self, opt, val=None):
- self._opt.add((opt, val))
-
- def find_in_path(self, name, pwd=False):
- path = self._env.get('PATH', '').split(os.pathsep)
- if pwd:
- path[:0] = [self['PWD']]
- if os.name == 'nt':
- return win32_find_in_path(name, self._env.get('PATH', ''))
- else:
- raise NotImplementedError()
-
- def define_function(self, name, body):
- if not is_name(name):
- raise ShellSyntaxError('%s is not a valid function name' % repr(name))
- self._functions[name] = body
-
- def remove_function(self, name):
- del self._functions[name]
-
- def is_function(self, name):
- return name in self._functions
-
- def get_function(self, name):
- return self._functions.get(name)
-
-
-name_charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
-name_charset = dict(zip(name_charset,name_charset))
-
-def match_name(s):
- """Return the length in characters of the longest prefix made of name
- allowed characters in s.
- """
- for i,c in enumerate(s):
- if c not in name_charset:
- return s[:i]
- return s
-
-def is_name(s):
- return len([c for c in s if c not in name_charset])<=0
-
-def is_special_param(c):
- return len(c)==1 and c in ('@','*','#','?','-','$','!','0')
-
-def utility_not_implemented(name, *args, **kwargs):
- raise NotImplementedError('%s utility is not implemented' % name)
-
-
-class Utility:
- """Define utilities properties:
- func -- utility callable. See builtin module for utility samples.
- is_special -- see XCU 2.8.
- """
- def __init__(self, func, is_special=0):
- self.func = func
- self.is_special = bool(is_special)
-
-
-def encodeargs(args):
- def encodearg(s):
- lines = base64.encodestring(s)
- lines = [l.splitlines()[0] for l in lines]
- return ''.join(lines)
-
- s = pickle.dumps(args)
- return encodearg(s)
-
-def decodeargs(s):
- s = base64.decodestring(s)
- return pickle.loads(s)
-
-
-class GlobError(Exception):
- pass
-
-class Options:
- def __init__(self):
- # True if Mercurial operates with binary streams
- self.hgbinary = True
-
-class Interpreter:
- # Implementation is very basic: the execute() method just makes a DFS on the
- # AST and execute nodes one by one. Nodes are tuple (name,obj) where name
- # is a string identifier and obj the AST element returned by the parser.
- #
- # Handler are named after the node identifiers.
- # TODO: check node names and remove the switch in execute with some
- # dynamic getattr() call to find node handlers.
- """Shell interpreter.
-
- The following debugging flags can be passed:
- debug-parsing - enable PLY debugging.
- debug-tree - print the generated AST.
- debug-cmd - trace command execution before word expansion, plus exit status.
- debug-utility - trace utility execution.
- """
-
- # List supported commands.
- COMMANDS = {
- 'cat': Utility(builtin.utility_cat,),
- 'cd': Utility(builtin.utility_cd,),
- ':': Utility(builtin.utility_colon,),
- 'echo': Utility(builtin.utility_echo),
- 'env': Utility(builtin.utility_env),
- 'exit': Utility(builtin.utility_exit),
- 'export': Utility(builtin.builtin_export, is_special=1),
- 'egrep': Utility(builtin.utility_egrep),
- 'fgrep': Utility(builtin.utility_fgrep),
- 'gunzip': Utility(builtin.utility_gunzip),
- 'kill': Utility(builtin.utility_kill),
- 'mkdir': Utility(builtin.utility_mkdir),
- 'netstat': Utility(builtin.utility_netstat),
- 'printf': Utility(builtin.utility_printf),
- 'pwd': Utility(builtin.utility_pwd),
- 'return': Utility(builtin.builtin_return, is_special=1),
- 'sed': Utility(builtin.utility_sed,),
- 'set': Utility(builtin.builtin_set,),
- 'shift': Utility(builtin.builtin_shift,),
- 'sleep': Utility(builtin.utility_sleep,),
- 'sort': Utility(builtin.utility_sort,),
- 'trap': Utility(builtin.builtin_trap, is_special=1),
- 'true': Utility(builtin.utility_true),
- 'unset': Utility(builtin.builtin_unset, is_special=1),
- 'wait': Utility(builtin.builtin_wait, is_special=1),
- }
-
- def __init__(self, pwd, debugflags = [], env=None, redirs=None, stdin=None,
- stdout=None, stderr=None, opts=Options()):
- self._env = env
- if self._env is None:
- self._env = Environment(pwd)
- self._children = {}
-
- self._redirs = redirs
- self._close_redirs = False
-
- if self._redirs is None:
- if stdin is None:
- stdin = sys.stdin
- if stdout is None:
- stdout = sys.stdout
- if stderr is None:
- stderr = sys.stderr
- stdin = FileWrapper('r', stdin, False)
- stdout = FileWrapper('w', stdout, False)
- stderr = FileWrapper('w', stderr, False)
- self._redirs = Redirections(stdin, stdout, stderr)
- self._close_redirs = True
-
- self._debugflags = list(debugflags)
- self._logfile = sys.stderr
- self._options = opts
-
- def close(self):
- """Must be called when the interpreter is no longer used."""
- script = self._env.traps.get('EXIT')
- if script:
- try:
- self.execute_script(script=script)
- except:
- pass
-
- if self._redirs is not None and self._close_redirs:
- self._redirs.close()
- self._redirs = None
-
- def log(self, s):
- self._logfile.write(s)
- self._logfile.flush()
-
- def __getitem__(self, key):
- return self._env[key]
-
- def __setitem__(self, key, value):
- self._env[key] = value
-
- def options(self):
- return self._options
-
- def redirect(self, redirs, ios):
- def add_redir(io):
- if isinstance(io, pyshyacc.IORedirect):
- redirs.add(self, io.op, io.filename, io.io_number)
- else:
- redirs.add_here_document(self, io.name, io.content, io.io_number)
-
- map(add_redir, ios)
- return redirs
-
- def execute_script(self, script=None, ast=None, sourced=False,
- scriptpath=None):
- """If script is not None, parse the input. Otherwise takes the supplied
- AST. Then execute the AST.
- Return the script exit status.
- """
- try:
- if scriptpath is not None:
- self._env['0'] = os.path.abspath(scriptpath)
-
- if script is not None:
- debug_parsing = ('debug-parsing' in self._debugflags)
- cmds, script = pyshyacc.parse(script, True, debug_parsing)
- if 'debug-tree' in self._debugflags:
- pyshyacc.print_commands(cmds, self._logfile)
- self._logfile.flush()
- else:
- cmds, script = ast, ''
-
- status = 0
- for cmd in cmds:
- try:
- status = self.execute(cmd)
- except ExitSignal as e:
- if sourced:
- raise
- status = int(e.args[0])
- return status
- except ShellError:
- self._env['?'] = 1
- raise
- if 'debug-utility' in self._debugflags or 'debug-cmd' in self._debugflags:
- self.log('returncode ' + str(status)+ '\n')
- return status
- except CommandNotFound as e:
- print >>self._redirs.stderr, str(e)
- self._redirs.stderr.flush()
- # Command not found by non-interactive shell
- # return 127
- raise
- except RedirectionError as e:
- # TODO: should be handled depending on the utility status
- print >>self._redirs.stderr, str(e)
- self._redirs.stderr.flush()
- # Command not found by non-interactive shell
- # return 127
- raise
-
- def dotcommand(self, env, args):
- if len(args) < 1:
- raise ShellError('. expects at least one argument')
- path = args[0]
- if '/' not in path:
- found = env.find_in_path(args[0], True)
- if found:
- path = found[0]
- script = file(path).read()
- return self.execute_script(script=script, sourced=True)
-
- def execute(self, token, redirs=None):
- """Execute and AST subtree with supplied redirections overriding default
- interpreter ones.
- Return the exit status.
- """
- if not token:
- return 0
-
- if redirs is None:
- redirs = self._redirs
-
- if isinstance(token, list):
- # Commands sequence
- res = 0
- for t in token:
- res = self.execute(t, redirs)
- return res
-
- type, value = token
- status = 0
- if type=='simple_command':
- redirs_copy = redirs.clone()
- try:
- # TODO: define and handle command return values
- # TODO: implement set -e
- status = self._execute_simple_command(value, redirs_copy)
- finally:
- redirs_copy.close()
- elif type=='pipeline':
- status = self._execute_pipeline(value, redirs)
- elif type=='and_or':
- status = self._execute_and_or(value, redirs)
- elif type=='for_clause':
- status = self._execute_for_clause(value, redirs)
- elif type=='while_clause':
- status = self._execute_while_clause(value, redirs)
- elif type=='function_definition':
- status = self._execute_function_definition(value, redirs)
- elif type=='brace_group':
- status = self._execute_brace_group(value, redirs)
- elif type=='if_clause':
- status = self._execute_if_clause(value, redirs)
- elif type=='subshell':
- status = self.subshell(ast=value.cmds, redirs=redirs)
- elif type=='async':
- status = self._asynclist(value)
- elif type=='redirect_list':
- redirs_copy = self.redirect(redirs.clone(), value.redirs)
- try:
- status = self.execute(value.cmd, redirs_copy)
- finally:
- redirs_copy.close()
- else:
- raise NotImplementedError('Unsupported token type ' + type)
-
- if status < 0:
- status = 255
- return status
-
- def _execute_if_clause(self, if_clause, redirs):
- cond_status = self.execute(if_clause.cond, redirs)
- if cond_status==0:
- return self.execute(if_clause.if_cmds, redirs)
- else:
- return self.execute(if_clause.else_cmds, redirs)
-
- def _execute_brace_group(self, group, redirs):
- status = 0
- for cmd in group.cmds:
- status = self.execute(cmd, redirs)
- return status
-
- def _execute_function_definition(self, fundef, redirs):
- self._env.define_function(fundef.name, fundef.body)
- return 0
-
- def _execute_while_clause(self, while_clause, redirs):
- status = 0
- while 1:
- cond_status = 0
- for cond in while_clause.condition:
- cond_status = self.execute(cond, redirs)
-
- if cond_status:
- break
-
- for cmd in while_clause.cmds:
- status = self.execute(cmd, redirs)
-
- return status
-
- def _execute_for_clause(self, for_clause, redirs):
- if not is_name(for_clause.name):
- raise ShellSyntaxError('%s is not a valid name' % repr(for_clause.name))
- items = mappend(self.expand_token, for_clause.items)
-
- status = 0
- for item in items:
- self._env[for_clause.name] = item
- for cmd in for_clause.cmds:
- status = self.execute(cmd, redirs)
- return status
-
- def _execute_and_or(self, or_and, redirs):
- res = self.execute(or_and.left, redirs)
- if (or_and.op=='&&' and res==0) or (or_and.op!='&&' and res!=0):
- res = self.execute(or_and.right, redirs)
- return res
-
- def _execute_pipeline(self, pipeline, redirs):
- if len(pipeline.commands)==1:
- status = self.execute(pipeline.commands[0], redirs)
- else:
- # Execute all commands one after the other
- status = 0
- inpath, outpath = None, None
- try:
- # Commands inputs and outputs cannot really be plugged as done
- # by a real shell. Run commands sequentially and chain their
- # input/output throught temporary files.
- tmpfd, inpath = tempfile.mkstemp()
- os.close(tmpfd)
- tmpfd, outpath = tempfile.mkstemp()
- os.close(tmpfd)
-
- inpath = win32_to_unix_path(inpath)
- outpath = win32_to_unix_path(outpath)
-
- for i, cmd in enumerate(pipeline.commands):
- call_redirs = redirs.clone()
- try:
- if i!=0:
- call_redirs.add(self, '<', inpath)
- if i!=len(pipeline.commands)-1:
- call_redirs.add(self, '>', outpath)
-
- status = self.execute(cmd, call_redirs)
-
- # Chain inputs/outputs
- inpath, outpath = outpath, inpath
- finally:
- call_redirs.close()
- finally:
- if inpath: os.remove(inpath)
- if outpath: os.remove(outpath)
-
- if pipeline.reverse_status:
- status = int(not status)
- self._env['?'] = status
- return status
-
- def _execute_function(self, name, args, interp, env, stdin, stdout, stderr, *others):
- assert interp is self
-
- func = env.get_function(name)
- #Set positional parameters
- prevargs = None
- try:
- prevargs = env.set_positional_args(args)
- try:
- redirs = Redirections(stdin.dup(), stdout.dup(), stderr.dup())
- try:
- status = self.execute(func, redirs)
- finally:
- redirs.close()
- except ReturnSignal as e:
- status = int(e.args[0])
- env['?'] = status
- return status
- finally:
- #Reset positional parameters
- if prevargs is not None:
- env.set_positional_args(prevargs)
-
- def _execute_simple_command(self, token, redirs):
- """Can raise ReturnSignal when return builtin is called, ExitSignal when
- exit is called, and other shell exceptions upon builtin failures.
- """
- debug_command = 'debug-cmd' in self._debugflags
- if debug_command:
- self.log('word' + repr(token.words) + '\n')
- self.log('assigns' + repr(token.assigns) + '\n')
- self.log('redirs' + repr(token.redirs) + '\n')
-
- is_special = None
- env = self._env
-
- try:
- # Word expansion
- args = []
- for word in token.words:
- args += self.expand_token(word)
- if is_special is None and args:
- is_special = env.is_function(args[0]) or \
- (args[0] in self.COMMANDS and self.COMMANDS[args[0]].is_special)
-
- if debug_command:
- self.log('_execute_simple_command' + str(args) + '\n')
-
- if not args:
- # Redirections happen is a subshell
- redirs = redirs.clone()
- elif not is_special:
- env = self._env.clone()
-
- # Redirections
- self.redirect(redirs, token.redirs)
-
- # Variables assignments
- res = 0
- for type,(k,v) in token.assigns:
- status, expanded = self.expand_variable((k,v))
- if status is not None:
- res = status
- if args:
- env.export(k, expanded)
- else:
- env[k] = expanded
-
- if args and args[0] in ('.', 'source'):
- res = self.dotcommand(env, args[1:])
- elif args:
- if args[0] in self.COMMANDS:
- command = self.COMMANDS[args[0]]
- elif env.is_function(args[0]):
- command = Utility(self._execute_function, is_special=True)
- else:
- if not '/' in args[0].replace('\\', '/'):
- cmd = env.find_in_path(args[0])
- if not cmd:
- # TODO: test error code on unknown command => 127
- raise CommandNotFound('Unknown command: "%s"' % args[0])
- else:
- # Handle commands like '/cygdrive/c/foo.bat'
- cmd = cygwin_to_windows_path(args[0])
- if not os.path.exists(cmd):
- raise CommandNotFound('%s: No such file or directory' % args[0])
- shebang = resolve_shebang(cmd)
- if shebang:
- cmd = shebang
- else:
- cmd = [cmd]
- args[0:1] = cmd
- command = Utility(builtin.run_command)
-
- # Command execution
- if 'debug-cmd' in self._debugflags:
- self.log('redirections ' + str(redirs) + '\n')
-
- res = command.func(args[0], args[1:], self, env,
- redirs.stdin(), redirs.stdout(),
- redirs.stderr(), self._debugflags)
-
- if self._env.has_opt('-x'):
- # Trace command execution in shell environment
- # BUG: would be hard to reproduce a real shell behaviour since
- # the AST is not annotated with source lines/tokens.
- self._redirs.stdout().write(' '.join(args))
-
- except ReturnSignal:
- raise
- except ShellError as e:
- if is_special or isinstance(e, (ExitSignal,
- ShellSyntaxError, ExpansionError)):
- raise e
- self._redirs.stderr().write(str(e)+'\n')
- return 1
-
- return res
-
- def expand_token(self, word):
- """Expand a word as specified in [2.6 Word Expansions]. Return the list
- of expanded words.
- """
- status, wtrees = self._expand_word(word)
- return map(pyshlex.wordtree_as_string, wtrees)
-
- def expand_variable(self, word):
- """Return a status code (or None if no command expansion occurred)
- and a single word.
- """
- status, wtrees = self._expand_word(word, pathname=False, split=False)
- words = map(pyshlex.wordtree_as_string, wtrees)
- assert len(words)==1
- return status, words[0]
-
- def expand_here_document(self, word):
- """Return the expanded document as a single word. The here document is
- assumed to be unquoted.
- """
- status, wtrees = self._expand_word(word, pathname=False,
- split=False, here_document=True)
- words = map(pyshlex.wordtree_as_string, wtrees)
- assert len(words)==1
- return words[0]
-
- def expand_redirection(self, word):
- """Return a single word."""
- return self.expand_variable(word)[1]
-
- def get_env(self):
- return self._env
-
- def _expand_word(self, token, pathname=True, split=True, here_document=False):
- wtree = pyshlex.make_wordtree(token[1], here_document=here_document)
-
- # TODO: implement tilde expansion
- def expand(wtree):
- """Return a pseudo wordtree: the tree or its subelements can be empty
- lists when no value result from the expansion.
- """
- status = None
- for part in wtree:
- if not isinstance(part, list):
- continue
- if part[0]in ("'", '\\'):
- continue
- elif part[0] in ('`', '$('):
- status, result = self._expand_command(part)
- part[:] = result
- elif part[0] in ('$', '${'):
- part[:] = self._expand_parameter(part, wtree[0]=='"', split)
- elif part[0] in ('', '"'):
- status, result = expand(part)
- part[:] = result
- else:
- raise NotImplementedError('%s expansion is not implemented'
- % part[0])
- # [] is returned when an expansion result in no-field,
- # like an empty $@
- wtree = [p for p in wtree if p != []]
- if len(wtree) < 3:
- return status, []
- return status, wtree
-
- status, wtree = expand(wtree)
- if len(wtree) == 0:
- return status, wtree
- wtree = pyshlex.normalize_wordtree(wtree)
-
- if split:
- wtrees = self._split_fields(wtree)
- else:
- wtrees = [wtree]
-
- if pathname:
- wtrees = mappend(self._expand_pathname, wtrees)
-
- wtrees = map(self._remove_quotes, wtrees)
- return status, wtrees
-
- def _expand_command(self, wtree):
- # BUG: there is something to do with backslashes and quoted
- # characters here
- command = pyshlex.wordtree_as_string(wtree[1:-1])
- status, output = self.subshell_output(command)
- return status, ['', output, '']
-
- def _expand_parameter(self, wtree, quoted=False, split=False):
- """Return a valid wtree or an empty list when no parameter results."""
- # Get the parameter name
- # TODO: implement weird expansion rules with ':'
- name = pyshlex.wordtree_as_string(wtree[1:-1])
- if not is_name(name) and not is_special_param(name):
- raise ExpansionError('Bad substitution "%s"' % name)
- # TODO: implement special parameters
- if name in ('@', '*'):
- args = self._env.get_positional_args()
- if len(args) == 0:
- return []
- if len(args)<2:
- return ['', ''.join(args), '']
-
- sep = self._env.get('IFS', '')[:1]
- if split and quoted and name=='@':
- # Introduce a new token to tell the caller that these parameters
- # cause a split as specified in 2.5.2
- return ['@'] + args + ['']
- else:
- return ['', sep.join(args), '']
-
- return ['', self._env.get(name, ''), '']
-
- def _split_fields(self, wtree):
- def is_empty(split):
- return split==['', '', '']
-
- def split_positional(quoted):
- # Return a list of wtree split according positional parameters rules.
- # All remaining '@' groups are removed.
- assert quoted[0]=='"'
-
- splits = [[]]
- for part in quoted:
- if not isinstance(part, list) or part[0]!='@':
- splits[-1].append(part)
- else:
- # Empty or single argument list were dealt with already
- assert len(part)>3
- # First argument must join with the beginning part of the original word
- splits[-1].append(part[1])
- # Create double-quotes expressions for every argument after the first
- for arg in part[2:-1]:
- splits[-1].append('"')
- splits.append(['"', arg])
- return splits
-
- # At this point, all expansions but pathnames have occured. Only quoted
- # and positional sequences remain. Thus, all candidates for field splitting
- # are in the tree root, or are positional splits ('@') and lie in root
- # children.
- if not wtree or wtree[0] not in ('', '"'):
- # The whole token is quoted or empty, nothing to split
- return [wtree]
-
- if wtree[0]=='"':
- wtree = ['', wtree, '']
-
- result = [['', '']]
- for part in wtree[1:-1]:
- if isinstance(part, list):
- if part[0]=='"':
- splits = split_positional(part)
- if len(splits)<=1:
- result[-1] += [part, '']
- else:
- # Terminate the current split
- result[-1] += [splits[0], '']
- result += splits[1:-1]
- # Create a new split
- result += [['', splits[-1], '']]
- else:
- result[-1] += [part, '']
- else:
- splits = self._env.split_fields(part)
- if len(splits)<=1:
- # No split
- result[-1][-1] += part
- else:
- # Terminate the current resulting part and create a new one
- result[-1][-1] += splits[0]
- result[-1].append('')
- result += [['', r, ''] for r in splits[1:-1]]
- result += [['', splits[-1]]]
- result[-1].append('')
-
- # Leading and trailing empty groups come from leading/trailing blanks
- if result and is_empty(result[-1]):
- result[-1:] = []
- if result and is_empty(result[0]):
- result[:1] = []
- return result
-
- def _expand_pathname(self, wtree):
- """See [2.6.6 Pathname Expansion]."""
- if self._env.has_opt('-f'):
- return [wtree]
-
- # All expansions have been performed, only quoted sequences should remain
- # in the tree. Generate the pattern by folding the tree, escaping special
- # characters when appear quoted
- special_chars = '*?[]'
-
- def make_pattern(wtree):
- subpattern = []
- for part in wtree[1:-1]:
- if isinstance(part, list):
- part = make_pattern(part)
- elif wtree[0]!='':
- for c in part:
- # Meta-characters cannot be quoted
- if c in special_chars:
- raise GlobError()
- subpattern.append(part)
- return ''.join(subpattern)
-
- def pwd_glob(pattern):
- cwd = os.getcwd()
- os.chdir(self._env['PWD'])
- try:
- return glob.glob(pattern)
- finally:
- os.chdir(cwd)
-
- #TODO: check working directory issues here wrt relative patterns
- try:
- pattern = make_pattern(wtree)
- paths = pwd_glob(pattern)
- except GlobError:
- # BUG: Meta-characters were found in quoted sequences. The should
- # have been used literally but this is unsupported in current glob module.
- # Instead we consider the whole tree must be used literally and
- # therefore there is no point in globbing. This is wrong when meta
- # characters are mixed with quoted meta in the same pattern like:
- # < foo*"py*" >
- paths = []
-
- if not paths:
- return [wtree]
- return [['', path, ''] for path in paths]
-
- def _remove_quotes(self, wtree):
- """See [2.6.7 Quote Removal]."""
-
- def unquote(wtree):
- unquoted = []
- for part in wtree[1:-1]:
- if isinstance(part, list):
- part = unquote(part)
- unquoted.append(part)
- return ''.join(unquoted)
-
- return ['', unquote(wtree), '']
-
- def subshell(self, script=None, ast=None, redirs=None):
- """Execute the script or AST in a subshell, with inherited redirections
- if redirs is not None.
- """
- if redirs:
- sub_redirs = redirs
- else:
- sub_redirs = redirs.clone()
-
- subshell = None
- try:
- subshell = Interpreter(None, self._debugflags, self._env.clone(True),
- sub_redirs, opts=self._options)
- return subshell.execute_script(script, ast)
- finally:
- if not redirs: sub_redirs.close()
- if subshell: subshell.close()
-
- def subshell_output(self, script):
- """Execute the script in a subshell and return the captured output."""
- # Create temporary file to capture subshell output
- tmpfd, tmppath = tempfile.mkstemp()
- try:
- tmpfile = os.fdopen(tmpfd, 'wb')
- stdout = FileWrapper('w', tmpfile)
-
- redirs = Redirections(self._redirs.stdin().dup(),
- stdout,
- self._redirs.stderr().dup())
- try:
- status = self.subshell(script=script, redirs=redirs)
- finally:
- redirs.close()
- redirs = None
-
- # Extract subshell standard output
- tmpfile = open(tmppath, 'rb')
- try:
- output = tmpfile.read()
- return status, output.rstrip('\n')
- finally:
- tmpfile.close()
- finally:
- os.remove(tmppath)
-
- def _asynclist(self, cmd):
- args = (self._env.get_variables(), cmd)
- arg = encodeargs(args)
- assert len(args) < 30*1024
- cmd = ['pysh.bat', '--ast', '-c', arg]
- p = subprocess.Popen(cmd, cwd=self._env['PWD'])
- self._children[p.pid] = p
- self._env['!'] = p.pid
- return 0
-
- def wait(self, pids=None):
- if not pids:
- pids = self._children.keys()
-
- status = 127
- for pid in pids:
- if pid not in self._children:
- continue
- p = self._children.pop(pid)
- status = p.wait()
-
- return status
-
diff --git a/lib/bb/pysh/lsprof.py b/lib/bb/pysh/lsprof.py
deleted file mode 100644
index b1831c22a7..0000000000
--- a/lib/bb/pysh/lsprof.py
+++ /dev/null
@@ -1,116 +0,0 @@
-#! /usr/bin/env python
-
-import sys
-from _lsprof import Profiler, profiler_entry
-
-__all__ = ['profile', 'Stats']
-
-def profile(f, *args, **kwds):
- """XXX docstring"""
- p = Profiler()
- p.enable(subcalls=True, builtins=True)
- try:
- f(*args, **kwds)
- finally:
- p.disable()
- return Stats(p.getstats())
-
-
-class Stats(object):
- """XXX docstring"""
-
- def __init__(self, data):
- self.data = data
-
- def sort(self, crit="inlinetime"):
- """XXX docstring"""
- if crit not in profiler_entry.__dict__:
- raise ValueError("Can't sort by %s" % crit)
- self.data.sort(lambda b, a: cmp(getattr(a, crit),
- getattr(b, crit)))
- for e in self.data:
- if e.calls:
- e.calls.sort(lambda b, a: cmp(getattr(a, crit),
- getattr(b, crit)))
-
- def pprint(self, top=None, file=None, limit=None, climit=None):
- """XXX docstring"""
- if file is None:
- file = sys.stdout
- d = self.data
- if top is not None:
- d = d[:top]
- cols = "% 12s %12s %11.4f %11.4f %s\n"
- hcols = "% 12s %12s %12s %12s %s\n"
- cols2 = "+%12s %12s %11.4f %11.4f + %s\n"
- file.write(hcols % ("CallCount", "Recursive", "Total(ms)",
- "Inline(ms)", "module:lineno(function)"))
- count = 0
- for e in d:
- file.write(cols % (e.callcount, e.reccallcount, e.totaltime,
- e.inlinetime, label(e.code)))
- count += 1
- if limit is not None and count == limit:
- return
- ccount = 0
- if e.calls:
- for se in e.calls:
- file.write(cols % ("+%s" % se.callcount, se.reccallcount,
- se.totaltime, se.inlinetime,
- "+%s" % label(se.code)))
- count += 1
- ccount += 1
- if limit is not None and count == limit:
- return
- if climit is not None and ccount == climit:
- break
-
- def freeze(self):
- """Replace all references to code objects with string
- descriptions; this makes it possible to pickle the instance."""
-
- # this code is probably rather ickier than it needs to be!
- for i in range(len(self.data)):
- e = self.data[i]
- if not isinstance(e.code, str):
- self.data[i] = type(e)((label(e.code),) + e[1:])
- if e.calls:
- for j in range(len(e.calls)):
- se = e.calls[j]
- if not isinstance(se.code, str):
- e.calls[j] = type(se)((label(se.code),) + se[1:])
-
-_fn2mod = {}
-
-def label(code):
- if isinstance(code, str):
- return code
- try:
- mname = _fn2mod[code.co_filename]
- except KeyError:
- for k, v in sys.modules.items():
- if v is None:
- continue
- if not hasattr(v, '__file__'):
- continue
- if not isinstance(v.__file__, str):
- continue
- if v.__file__.startswith(code.co_filename):
- mname = _fn2mod[code.co_filename] = k
- break
- else:
- mname = _fn2mod[code.co_filename] = '<%s>'%code.co_filename
-
- return '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name)
-
-
-if __name__ == '__main__':
- import os
- sys.argv = sys.argv[1:]
- if not sys.argv:
- print >> sys.stderr, "usage: lsprof.py <script> <arguments...>"
- sys.exit(2)
- sys.path.insert(0, os.path.abspath(os.path.dirname(sys.argv[0])))
- stats = profile(execfile, sys.argv[0], globals(), locals())
- stats.sort()
- stats.pprint()
diff --git a/lib/bb/pysh/pysh.py b/lib/bb/pysh/pysh.py
deleted file mode 100644
index b4e6145b51..0000000000
--- a/lib/bb/pysh/pysh.py
+++ /dev/null
@@ -1,167 +0,0 @@
-# pysh.py - command processing for pysh.
-#
-# Copyright 2007 Patrick Mezard
-#
-# This software may be used and distributed according to the terms
-# of the GNU General Public License, incorporated herein by reference.
-
-import optparse
-import os
-import sys
-
-import interp
-
-SH_OPT = optparse.OptionParser(prog='pysh', usage="%prog [OPTIONS]", version='0.1')
-SH_OPT.add_option('-c', action='store_true', dest='command_string', default=None,
- help='A string that shall be interpreted by the shell as one or more commands')
-SH_OPT.add_option('--redirect-to', dest='redirect_to', default=None,
- help='Redirect script commands stdout and stderr to the specified file')
-# See utility_command in builtin.py about the reason for this flag.
-SH_OPT.add_option('--redirected', dest='redirected', action='store_true', default=False,
- help='Tell the interpreter that stdout and stderr are actually the same objects, which is really stdout')
-SH_OPT.add_option('--debug-parsing', action='store_true', dest='debug_parsing', default=False,
- help='Trace PLY execution')
-SH_OPT.add_option('--debug-tree', action='store_true', dest='debug_tree', default=False,
- help='Display the generated syntax tree.')
-SH_OPT.add_option('--debug-cmd', action='store_true', dest='debug_cmd', default=False,
- help='Trace command execution before parameters expansion and exit status.')
-SH_OPT.add_option('--debug-utility', action='store_true', dest='debug_utility', default=False,
- help='Trace utility calls, after parameters expansions')
-SH_OPT.add_option('--ast', action='store_true', dest='ast', default=False,
- help='Encoded commands to execute in a subprocess')
-SH_OPT.add_option('--profile', action='store_true', default=False,
- help='Profile pysh run')
-
-
-def split_args(args):
- # Separate shell arguments from command ones
- # Just stop at the first argument not starting with a dash. I know, this is completely broken,
- # it ignores files starting with a dash or may take option values for command file. This is not
- # supposed to happen for now
- command_index = len(args)
- for i,arg in enumerate(args):
- if not arg.startswith('-'):
- command_index = i
- break
-
- return args[:command_index], args[command_index:]
-
-
-def fixenv(env):
- path = env.get('PATH')
- if path is not None:
- parts = path.split(os.pathsep)
- # Remove Windows utilities from PATH, they are useless at best and
- # some of them (find) may be confused with other utilities.
- parts = [p for p in parts if 'system32' not in p.lower()]
- env['PATH'] = os.pathsep.join(parts)
- if env.get('HOME') is None:
- # Several utilities, including cvsps, cannot work without
- # a defined HOME directory.
- env['HOME'] = os.path.expanduser('~')
- return env
-
-def _sh(cwd, shargs, cmdargs, options, debugflags=None, env=None):
- if os.environ.get('PYSH_TEXT') != '1':
- import msvcrt
- for fp in (sys.stdin, sys.stdout, sys.stderr):
- msvcrt.setmode(fp.fileno(), os.O_BINARY)
-
- hgbin = os.environ.get('PYSH_HGTEXT') != '1'
-
- if debugflags is None:
- debugflags = []
- if options.debug_parsing: debugflags.append('debug-parsing')
- if options.debug_utility: debugflags.append('debug-utility')
- if options.debug_cmd: debugflags.append('debug-cmd')
- if options.debug_tree: debugflags.append('debug-tree')
-
- if env is None:
- env = fixenv(dict(os.environ))
- if cwd is None:
- cwd = os.getcwd()
-
- if not cmdargs:
- # Nothing to do
- return 0
-
- ast = None
- command_file = None
- if options.command_string:
- input = cmdargs[0]
- if not options.ast:
- input += '\n'
- else:
- args, input = interp.decodeargs(input), None
- env, ast = args
- cwd = env.get('PWD', cwd)
- else:
- command_file = cmdargs[0]
- arguments = cmdargs[1:]
-
- prefix = interp.resolve_shebang(command_file, ignoreshell=True)
- if prefix:
- input = ' '.join(prefix + [command_file] + arguments)
- else:
- # Read commands from file
- f = file(command_file)
- try:
- # Trailing newline to help the parser
- input = f.read() + '\n'
- finally:
- f.close()
-
- redirect = None
- try:
- if options.redirected:
- stdout = sys.stdout
- stderr = stdout
- elif options.redirect_to:
- redirect = open(options.redirect_to, 'wb')
- stdout = redirect
- stderr = redirect
- else:
- stdout = sys.stdout
- stderr = sys.stderr
-
- # TODO: set arguments to environment variables
- opts = interp.Options()
- opts.hgbinary = hgbin
- ip = interp.Interpreter(cwd, debugflags, stdout=stdout, stderr=stderr,
- opts=opts)
- try:
- # Export given environment in shell object
- for k,v in env.iteritems():
- ip.get_env().export(k,v)
- return ip.execute_script(input, ast, scriptpath=command_file)
- finally:
- ip.close()
- finally:
- if redirect is not None:
- redirect.close()
-
-def sh(cwd=None, args=None, debugflags=None, env=None):
- if args is None:
- args = sys.argv[1:]
- shargs, cmdargs = split_args(args)
- options, shargs = SH_OPT.parse_args(shargs)
-
- if options.profile:
- import lsprof
- p = lsprof.Profiler()
- p.enable(subcalls=True)
- try:
- return _sh(cwd, shargs, cmdargs, options, debugflags, env)
- finally:
- p.disable()
- stats = lsprof.Stats(p.getstats())
- stats.sort()
- stats.pprint(top=10, file=sys.stderr, climit=5)
- else:
- return _sh(cwd, shargs, cmdargs, options, debugflags, env)
-
-def main():
- sys.exit(sh())
-
-if __name__=='__main__':
- main()
diff --git a/lib/bb/pysh/subprocess_fix.py b/lib/bb/pysh/subprocess_fix.py
deleted file mode 100644
index 46eca22802..0000000000
--- a/lib/bb/pysh/subprocess_fix.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# subprocess - Subprocesses with accessible I/O streams
-#
-# For more information about this module, see PEP 324.
-#
-# This module should remain compatible with Python 2.2, see PEP 291.
-#
-# Copyright (c) 2003-2005 by Peter Astrand <astrand@lysator.liu.se>
-#
-# Licensed to PSF under a Contributor Agreement.
-# See http://www.python.org/2.4/license for licensing details.
-
-def list2cmdline(seq):
- """
- Translate a sequence of arguments into a command line
- string, using the same rules as the MS C runtime:
-
- 1) Arguments are delimited by white space, which is either a
- space or a tab.
-
- 2) A string surrounded by double quotation marks is
- interpreted as a single argument, regardless of white space
- contained within. A quoted string can be embedded in an
- argument.
-
- 3) A double quotation mark preceded by a backslash is
- interpreted as a literal double quotation mark.
-
- 4) Backslashes are interpreted literally, unless they
- immediately precede a double quotation mark.
-
- 5) If backslashes immediately precede a double quotation mark,
- every pair of backslashes is interpreted as a literal
- backslash. If the number of backslashes is odd, the last
- backslash escapes the next double quotation mark as
- described in rule 3.
- """
-
- # See
- # http://msdn.microsoft.com/library/en-us/vccelng/htm/progs_12.asp
- result = []
- needquote = False
- for arg in seq:
- bs_buf = []
-
- # Add a space to separate this argument from the others
- if result:
- result.append(' ')
-
- needquote = (" " in arg) or ("\t" in arg) or ("|" in arg) or arg == ""
- if needquote:
- result.append('"')
-
- for c in arg:
- if c == '\\':
- # Don't know if we need to double yet.
- bs_buf.append(c)
- elif c == '"':
- # Double backspaces.
- result.append('\\' * len(bs_buf)*2)
- bs_buf = []
- result.append('\\"')
- else:
- # Normal char
- if bs_buf:
- result.extend(bs_buf)
- bs_buf = []
- result.append(c)
-
- # Add remaining backspaces, if any.
- if bs_buf:
- result.extend(bs_buf)
-
- if needquote:
- result.extend(bs_buf)
- result.append('"')
-
- return ''.join(result)