--- /dev/null
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "src/engine/SCons/Script/Interactive.py 3842 2008/12/20 22:59:52 scons"
+
+__doc__ = """
+SCons interactive mode
+"""
+
+# TODO:
+#
+# This has the potential to grow into something with a really big life
+# of its own, which might or might not be a good thing. Nevertheless,
+# here are some enhancements that will probably be requested some day
+# and are worth keeping in mind (assuming this takes off):
+#
+# - A command to re-read / re-load the SConscript files. This may
+# involve allowing people to specify command-line options (e.g. -f,
+# -I, --no-site-dir) that affect how the SConscript files are read.
+#
+# - Additional command-line options on the "build" command.
+#
+# Of the supported options that seemed to make sense (after a quick
+# pass through the list), the ones that seemed likely enough to be
+# used are listed in the man page and have explicit test scripts.
+#
+# These had code changed in Script/Main.py to support them, but didn't
+# seem likely to be used regularly, so had no test scripts added:
+#
+# build --diskcheck=*
+# build --implicit-cache=*
+# build --implicit-deps-changed=*
+# build --implicit-deps-unchanged=*
+#
+# These look like they should "just work" with no changes to the
+# existing code, but like those above, look unlikely to be used and
+# therefore had no test scripts added:
+#
+# build --random
+#
+# These I'm not sure about. They might be useful for individual
+# "build" commands, and may even work, but they seem unlikely enough
+# that we'll wait until they're requested before spending any time on
+# writing test scripts for them, or investigating whether they work.
+#
+# build -q [??? is there a useful analog to the exit status?]
+# build --duplicate=
+# build --profile=
+# build --max-drift=
+# build --warn=*
+# build --Y
+#
+# - Most of the SCons command-line options that the "build" command
+# supports should be settable as default options that apply to all
+# subsequent "build" commands. Maybe a "set {option}" command that
+# maps to "SetOption('{option}')".
+#
+# - Need something in the 'help' command that prints the -h output.
+#
+# - A command to run the configure subsystem separately (must see how
+# this interacts with the new automake model).
+#
+# - Command-line completion of target names; maybe even of SCons options?
+# Completion is something that's supported by the Python cmd module,
+# so this should be doable without too much trouble.
+#
+
+import cmd
+import copy
+import os
+import re
+import shlex
+import string
+import sys
+
+try:
+ import readline
+except ImportError:
+ pass
+
+class SConsInteractiveCmd(cmd.Cmd):
+ """\
+ build [TARGETS] Build the specified TARGETS and their dependencies.
+ 'b' is a synonym.
+ clean [TARGETS] Clean (remove) the specified TARGETS and their
+ dependencies. 'c' is a synonym.
+ exit Exit SCons interactive mode.
+ help [COMMAND] Prints help for the specified COMMAND. 'h' and
+ '?' are synonyms.
+ shell [COMMANDLINE] Execute COMMANDLINE in a subshell. 'sh' and '!'
+ are synonyms.
+ version Prints SCons version information.
+ """
+
+ synonyms = {
+ 'b' : 'build',
+ 'c' : 'clean',
+ 'h' : 'help',
+ 'scons' : 'build',
+ 'sh' : 'shell',
+ }
+
+ def __init__(self, **kw):
+ cmd.Cmd.__init__(self)
+ for key, val in kw.items():
+ setattr(self, key, val)
+
+ if sys.platform == 'win32':
+ self.shell_variable = 'COMSPEC'
+ else:
+ self.shell_variable = 'SHELL'
+
+ def default(self, argv):
+ print "*** Unknown command: %s" % argv[0]
+
+ def onecmd(self, line):
+ line = string.strip(line)
+ if not line:
+ print self.lastcmd
+ return self.emptyline()
+ self.lastcmd = line
+ if line[0] == '!':
+ line = 'shell ' + line[1:]
+ elif line[0] == '?':
+ line = 'help ' + line[1:]
+ if os.sep == '\\':
+ line = string.replace(line, '\\', '\\\\')
+ argv = shlex.split(line)
+ argv[0] = self.synonyms.get(argv[0], argv[0])
+ if not argv[0]:
+ return self.default(line)
+ else:
+ try:
+ func = getattr(self, 'do_' + argv[0])
+ except AttributeError:
+ return self.default(argv)
+ return func(argv)
+
+ def do_build(self, argv):
+ """\
+ build [TARGETS] Build the specified TARGETS and their
+ dependencies. 'b' is a synonym.
+ """
+ import SCons.Node
+ import SCons.SConsign
+ import SCons.Script.Main
+
+ options = copy.deepcopy(self.options)
+
+ options, targets = self.parser.parse_args(argv[1:], values=options)
+
+ SCons.Script.COMMAND_LINE_TARGETS = targets
+
+ if targets:
+ SCons.Script.BUILD_TARGETS = targets
+ else:
+ # If the user didn't specify any targets on the command line,
+ # use the list of default targets.
+ SCons.Script.BUILD_TARGETS = SCons.Script._build_plus_default
+
+ nodes = SCons.Script.Main._build_targets(self.fs,
+ options,
+ targets,
+ self.target_top)
+
+ if not nodes:
+ return
+
+ # Call each of the Node's alter_targets() methods, which may
+ # provide additional targets that ended up as part of the build
+ # (the canonical example being a VariantDir() when we're building
+ # from a source directory) and which we therefore need their
+ # state cleared, too.
+ x = []
+ for n in nodes:
+ x.extend(n.alter_targets()[0])
+ nodes.extend(x)
+
+ # Clean up so that we can perform the next build correctly.
+ #
+ # We do this by walking over all the children of the targets,
+ # and clearing their state.
+ #
+ # We currently have to re-scan each node to find their
+ # children, because built nodes have already been partially
+ # cleared and don't remember their children. (In scons
+ # 0.96.1 and earlier, this wasn't the case, and we didn't
+ # have to re-scan the nodes.)
+ #
+ # Because we have to re-scan each node, we can't clear the
+ # nodes as we walk over them, because we may end up rescanning
+ # a cleared node as we scan a later node. Therefore, only
+ # store the list of nodes that need to be cleared as we walk
+ # the tree, and clear them in a separate pass.
+ #
+ # XXX: Someone more familiar with the inner workings of scons
+ # may be able to point out a more efficient way to do this.
+
+ SCons.Script.Main.progress_display("scons: Clearing cached node information ...")
+
+ seen_nodes = {}
+
+ def get_unseen_children(node, parent, seen_nodes=seen_nodes):
+ def is_unseen(node, seen_nodes=seen_nodes):
+ return not seen_nodes.has_key(node)
+ return filter(is_unseen, node.children(scan=1))
+
+ def add_to_seen_nodes(node, parent, seen_nodes=seen_nodes):
+ seen_nodes[node] = 1
+
+ # If this file is in a VariantDir and has a
+ # corresponding source file in the source tree, remember the
+ # node in the source tree, too. This is needed in
+ # particular to clear cached implicit dependencies on the
+ # source file, since the scanner will scan it if the
+ # VariantDir was created with duplicate=0.
+ try:
+ rfile_method = node.rfile
+ except AttributeError:
+ return
+ else:
+ rfile = rfile_method()
+ if rfile != node:
+ seen_nodes[rfile] = 1
+
+ for node in nodes:
+ walker = SCons.Node.Walker(node,
+ kids_func=get_unseen_children,
+ eval_func=add_to_seen_nodes)
+ n = walker.next()
+ while n:
+ n = walker.next()
+
+ for node in seen_nodes.keys():
+ # Call node.clear() to clear most of the state
+ node.clear()
+ # node.clear() doesn't reset node.state, so call
+ # node.set_state() to reset it manually
+ node.set_state(SCons.Node.no_state)
+ node.implicit = None
+
+ # Debug: Uncomment to verify that all Taskmaster reference
+ # counts have been reset to zero.
+ #if node.ref_count != 0:
+ # from SCons.Debug import Trace
+ # Trace('node %s, ref_count %s !!!\n' % (node, node.ref_count))
+
+ SCons.SConsign.Reset()
+ SCons.Script.Main.progress_display("scons: done clearing node information.")
+
+ def do_clean(self, argv):
+ """\
+ clean [TARGETS] Clean (remove) the specified TARGETS
+ and their dependencies. 'c' is a synonym.
+ """
+ return self.do_build(['build', '--clean'] + argv[1:])
+
+ def do_EOF(self, argv):
+ print
+ self.do_exit(argv)
+
+ def _do_one_help(self, arg):
+ try:
+ # If help_<arg>() exists, then call it.
+ func = getattr(self, 'help_' + arg)
+ except AttributeError:
+ try:
+ func = getattr(self, 'do_' + arg)
+ except AttributeError:
+ doc = None
+ else:
+ doc = self._doc_to_help(func)
+ if doc:
+ sys.stdout.write(doc + '\n')
+ sys.stdout.flush()
+ else:
+ doc = self.strip_initial_spaces(func())
+ if doc:
+ sys.stdout.write(doc + '\n')
+ sys.stdout.flush()
+
+ def _doc_to_help(self, obj):
+ doc = obj.__doc__
+ if doc is None:
+ return ''
+ return self._strip_initial_spaces(doc)
+
+ def _strip_initial_spaces(self, s):
+ #lines = s.split('\n')
+ lines = string.split(s, '\n')
+ spaces = re.match(' *', lines[0]).group(0)
+ #def strip_spaces(l):
+ # if l.startswith(spaces):
+ # l = l[len(spaces):]
+ # return l
+ #return '\n'.join([ strip_spaces(l) for l in lines ])
+ def strip_spaces(l, spaces=spaces):
+ if l[:len(spaces)] == spaces:
+ l = l[len(spaces):]
+ return l
+ lines = map(strip_spaces, lines)
+ return string.join(lines, '\n')
+
+ def do_exit(self, argv):
+ """\
+ exit Exit SCons interactive mode.
+ """
+ sys.exit(0)
+
+ def do_help(self, argv):
+ """\
+ help [COMMAND] Prints help for the specified COMMAND. 'h'
+ and '?' are synonyms.
+ """
+ if argv[1:]:
+ for arg in argv[1:]:
+ if self._do_one_help(arg):
+ break
+ else:
+ # If bare 'help' is called, print this class's doc
+ # string (if it has one).
+ doc = self._doc_to_help(self.__class__)
+ if doc:
+ sys.stdout.write(doc + '\n')
+ sys.stdout.flush()
+
+ def do_shell(self, argv):
+ """\
+ shell [COMMANDLINE] Execute COMMANDLINE in a subshell. 'sh' and
+ '!' are synonyms.
+ """
+ import subprocess
+ argv = argv[1:]
+ if not argv:
+ argv = os.environ[self.shell_variable]
+ try:
+ p = subprocess.Popen(argv)
+ except EnvironmentError, e:
+ sys.stderr.write('scons: %s: %s\n' % (argv[0], e.strerror))
+ else:
+ p.wait()
+
+ def do_version(self, argv):
+ """\
+ version Prints SCons version information.
+ """
+ sys.stdout.write(self.parser.version + '\n')
+
+def interact(fs, parser, options, targets, target_top):
+ c = SConsInteractiveCmd(prompt = 'scons>>> ',
+ fs = fs,
+ parser = parser,
+ options = options,
+ targets = targets,
+ target_top = target_top)
+ c.cmdloop()
projects / senf.git / blobdiff