3 # Copyright (c) 2010 The SCons Foundation
5 # Permission is hereby granted, free of charge, to any person obtaining
6 # a copy of this software and associated documentation files (the
7 # "Software"), to deal in the Software without restriction, including
8 # without limitation the rights to use, copy, modify, merge, publish,
9 # distribute, sublicense, and/or sell copies of the Software, and to
10 # permit persons to whom the Software is furnished to do so, subject to
11 # the following conditions:
13 # The above copyright notice and this permission notice shall be included
14 # in all copies or substantial portions of the Software.
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
18 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 # scons-doc.py - an SGML preprocessor for capturing SCons output
26 # and inserting it into examples in our DocBook
29 # This script looks for some SGML tags that describe SCons example
30 # configurations and commands to execute in those configurations, and
31 # uses TestCmd.py to execute the commands and insert the output from
32 # those commands into the SGML that we output. This way, we can run a
33 # script and update all of our example documentation output without
34 # a lot of laborious by-hand checking.
36 # An "SCons example" looks like this, and essentially describes a set of
37 # input files (program source files as well as SConscript files):
39 # <scons_example name="ex1">
40 # <file name="SConstruct" printme="1">
45 # int main() { printf("foo.c\n"); }
49 # The <file> contents within the <scons_example> tag will get written
50 # into a temporary directory whenever example output needs to be
51 # generated. By default, the <file> contents are not inserted into text
52 # directly, unless you set the "printme" attribute on one or more files,
53 # in which case they will get inserted within a <programlisting> tag.
54 # This makes it easy to define the example at the appropriate
55 # point in the text where you intend to show the SConstruct file.
57 # Note that you should usually give the <scons_example> a "name"
58 # attribute so that you can refer to the example configuration later to
59 # run SCons and generate output.
61 # If you just want to show a file's contents without worry about running
62 # SCons, there's a shorter <sconstruct> tag:
69 # This is essentially equivalent to <scons_example><file printme="1">,
70 # but it's more straightforward.
72 # SCons output is generated from the following sort of tag:
74 # <scons_output example="ex1" os="posix">
75 # <scons_output_command>scons -Q foo</scons_output_command>
76 # <scons_output_command>scons -Q foo</scons_output_command>
79 # You tell it which example to use with the "example" attribute, and then
80 # give it a list of <scons_output_command> tags to execute. You can also
81 # supply an "os" tag, which specifies the type of operating system this
82 # example is intended to show; if you omit this, default value is "posix".
84 # The generated SGML will show the command line (with the appropriate
85 # command-line prompt for the operating system), execute the command in
86 # a temporary directory with the example files, capture the standard
87 # output from SCons, and insert it into the text as appropriate.
88 # Error output gets passed through to your error output so you
89 # can see if there are any problems executing the command.
100 sys.path.append(os.path.join(os.getcwd(), 'QMTest'))
101 sys.path.append(os.path.join(os.getcwd(), 'build', 'QMTest'))
103 scons_py = os.path.join('bootstrap', 'src', 'script', 'scons.py')
104 if not os.path.exists(scons_py):
105 scons_py = os.path.join('src', 'script', 'scons.py')
107 scons_lib_dir = os.path.join(os.getcwd(), 'bootstrap', 'src', 'engine')
108 if not os.path.exists(scons_lib_dir):
109 scons_lib_dir = os.path.join(os.getcwd(), 'src', 'engine')
111 os.environ['SCONS_LIB_DIR'] = scons_lib_dir
115 # The regular expression that identifies entity references in the
116 # standard sgmllib omits the underscore from the legal characters.
117 # Override it with our own regular expression that adds underscore.
118 sgmllib.entityref = re.compile('&([a-zA-Z][-_.a-zA-Z0-9]*)[^-_a-zA-Z0-9]')
120 # Classes for collecting different types of data we're interested in.
122 """Generic class for collecting data between a start tag and end
123 tag. We subclass for various types of tags we care about."""
126 def afunc(self, data):
127 self.data = self.data + data
129 class Example(DataCollector):
130 """An SCons example. This is essentially a list of files that
131 will get written to a temporary directory to collect output
132 from one or more SCons runs."""
134 DataCollector.__init__(self)
138 class File(DataCollector):
139 """A file, that will get written out to a temporary directory
140 for one or more SCons runs."""
141 def __init__(self, name):
142 DataCollector.__init__(self)
145 class Directory(DataCollector):
146 """A directory, that will get created in a temporary directory
147 for one or more SCons runs."""
148 def __init__(self, name):
149 DataCollector.__init__(self)
152 class Output(DataCollector):
153 """Where the command output goes. This is essentially
154 a list of commands that will get executed."""
156 DataCollector.__init__(self)
157 self.commandlist = []
159 class Command(DataCollector):
160 """A tag for where the command output goes. This is essentially
161 a list of commands that will get executed."""
163 DataCollector.__init__(self)
171 # The magick SCons hackery that makes this work.
173 # So that our examples can still use the default SConstruct file, we
174 # actually feed the following into SCons via stdin and then have it
175 # SConscript() the SConstruct file. This stdin wrapper creates a set
176 # of ToolSurrogates for the tools for the appropriate platform. These
177 # Surrogates print output like the real tools and behave like them
178 # without actually having to be on the right platform or have the right
181 # The upshot: The wrapper transparently changes the world out from
182 # under the top-level SConstruct file in an example just so we can get
183 # the command output.
190 import SCons.Defaults
193 platform = '%(osname)s'
201 # Slip our own __str__() method into the EntryProxy class used to expand
202 # $TARGET{S} and $SOURCE{S} to translate the path-name separators from
203 # what's appropriate for the system we're running on to what's appropriate
204 # for the example system.
205 orig = SCons.Node.FS.EntryProxy
206 class MyEntryProxy(orig):
208 return string.replace(str(self._Proxy__subject), os.sep, Sep)
209 SCons.Node.FS.EntryProxy = MyEntryProxy
211 # Slip our own RDirs() method into the Node.FS.File class so that the
212 # expansions of $_{CPPINC,F77INC,LIBDIR}FLAGS will have the path-name
213 # separators translated from what's appropriate for the system we're
214 # running on to what's appropriate for the example system.
215 orig_RDirs = SCons.Node.FS.File.RDirs
216 def my_RDirs(self, pathlist, orig_RDirs=orig_RDirs):
217 return map(lambda x: string.replace(str(x), os.sep, Sep),
218 orig_RDirs(self, pathlist))
219 SCons.Node.FS.File.RDirs = my_RDirs
222 def __init__(self, fun, *args, **kwargs):
224 self.pending = args[:]
225 self.kwargs = kwargs.copy()
227 def __call__(self, *args, **kwargs):
228 if kwargs and self.kwargs:
229 kw = self.kwargs.copy()
232 kw = kwargs or self.kwargs
234 return apply(self.fun, self.pending + args, kw)
236 def Str(target, source, env, cmd=""):
238 for cmd in env.subst_list(cmd, target=target, source=source):
239 result.append(string.join(map(str, cmd)))
240 return string.join(result, '\\n')
243 def __init__(self, tool, variable, func, varlist):
245 if not type(variable) is type([]):
246 variable = [variable]
247 self.variable = variable
249 self.varlist = varlist
250 def __call__(self, env):
253 for v in self.variable:
256 strfunction = orig.strfunction
257 except AttributeError:
258 strfunction = Curry(Str, cmd=orig)
259 # Don't call Action() through its global function name, because
260 # that leads to infinite recursion in trying to initialize the
261 # Default Environment.
262 env[v] = SCons.Action.Action(self.func,
263 strfunction=strfunction,
264 varlist=self.varlist)
266 # This is for the benefit of printing the 'TOOLS'
267 # variable through env.Dump().
268 return repr(self.tool)
270 def Null(target, source, env):
273 def Cat(target, source, env):
274 target = str(target[0])
275 f = open(target, "wb")
276 for src in map(str, source):
277 f.write(open(src, "rb").read())
280 def CCCom(target, source, env):
281 target = str(target[0])
282 fp = open(target, "wb")
283 def process(source_file, fp=fp):
284 for line in open(source_file, "rb").readlines():
285 m = re.match(r'#include\s[<"]([^<"]+)[>"]', line)
288 for d in [str(env.Dir('$CPPPATH')), '.']:
289 f = os.path.join(d, include)
290 if os.path.exists(f):
293 elif line[:11] != "STRIP CCCOM":
295 for src in map(str, source):
297 fp.write('debug = ' + ARGUMENTS.get('debug', '0') + '\\n')
300 public_class_re = re.compile('^public class (\S+)', re.MULTILINE)
302 def JavaCCom(target, source, env):
303 # This is a fake Java compiler that just looks for
304 # public class FooBar
305 # lines in the source file(s) and spits those out
306 # to .class files named after the class.
307 tlist = map(str, target)
311 for src in map(str, source):
312 contents = open(src, "rb").read()
313 classes = public_class_re.findall(contents)
315 for t in filter(lambda x: string.find(x, c) != -1, tlist):
316 open(t, "wb").write(contents)
318 for t in not_copied.keys():
319 open(t, "wb").write("\\n")
321 def JavaHCom(target, source, env):
322 tlist = map(str, target)
323 slist = map(str, source)
324 for t, s in zip(tlist, slist):
325 open(t, "wb").write(open(s, "rb").read())
327 def find_class_files(arg, dirname, names):
328 class_files = filter(lambda n: n[-6:] == '.class', names)
329 paths = map(lambda n, d=dirname: os.path.join(d, n), class_files)
332 def JarCom(target, source, env):
333 target = str(target[0])
335 for src in map(str, source):
336 os.path.walk(src, find_class_files, class_files)
337 f = open(target, "wb")
338 for cf in class_files:
339 f.write(open(cf, "rb").read())
342 # XXX Adding COLOR, COLORS and PACKAGE to the 'cc' varlist(s) by hand
343 # here is bogus. It's for the benefit of doc/user/command-line.in, which
344 # uses examples that want to rebuild based on changes to these variables.
345 # It would be better to figure out a way to do it based on the content of
346 # the generated command-line, or else find a way to let the example markup
347 # language in doc/user/command-line.in tell this script what variables to
348 # add, but that's more difficult than I want to figure out how to do right
349 # now, so let's just use the simple brute force approach for the moment.
352 'posix' : [('cc', ['CCCOM', 'SHCCCOM'], CCCom, ['CCFLAGS', 'CPPDEFINES', 'COLOR', 'COLORS', 'PACKAGE']),
353 ('link', ['LINKCOM', 'SHLINKCOM'], Cat, []),
354 ('ar', ['ARCOM', 'RANLIBCOM'], Cat, []),
355 ('tar', 'TARCOM', Null, []),
356 ('zip', 'ZIPCOM', Null, []),
357 ('BitKeeper', 'BITKEEPERCOM', Cat, []),
358 ('CVS', 'CVSCOM', Cat, []),
359 ('RCS', 'RCS_COCOM', Cat, []),
360 ('SCCS', 'SCCSCOM', Cat, []),
361 ('javac', 'JAVACCOM', JavaCCom, []),
362 ('javah', 'JAVAHCOM', JavaHCom, []),
363 ('jar', 'JARCOM', JarCom, []),
364 ('rmic', 'RMICCOM', Cat, []),
366 'win32' : [('msvc', ['CCCOM', 'SHCCCOM', 'RCCOM'], CCCom, ['CCFLAGS', 'CPPDEFINES', 'COLOR', 'COLORS', 'PACKAGE']),
367 ('mslink', ['LINKCOM', 'SHLINKCOM'], Cat, []),
368 ('mslib', 'ARCOM', Cat, []),
369 ('tar', 'TARCOM', Null, []),
370 ('zip', 'ZIPCOM', Null, []),
371 ('BitKeeper', 'BITKEEPERCOM', Cat, []),
372 ('CVS', 'CVSCOM', Cat, []),
373 ('RCS', 'RCS_COCOM', Cat, []),
374 ('SCCS', 'SCCSCOM', Cat, []),
375 ('javac', 'JAVACCOM', JavaCCom, []),
376 ('javah', 'JAVAHCOM', JavaHCom, []),
377 ('jar', 'JARCOM', JarCom, []),
378 ('rmic', 'RMICCOM', Cat, []),
382 toollist = ToolList[platform]
383 filter_tools = string.split('%(tools)s')
385 toollist = filter(lambda x, ft=filter_tools: x[0] in ft, toollist)
387 toollist = map(lambda t: apply(ToolSurrogate, t), toollist)
389 toollist.append('install')
391 def surrogate_spawn(sh, escape, cmd, args, env):
394 def surrogate_pspawn(sh, escape, cmd, args, env, stdout, stderr):
397 SCons.Defaults.ConstructionEnvironment.update({
398 'PLATFORM' : platform,
400 'SPAWN' : surrogate_spawn,
401 'PSPAWN' : surrogate_pspawn,
404 SConscript('SConstruct')
407 # "Commands" that we will execute in our examples.
408 def command_scons(args, c, test, dict):
413 except AttributeError:
416 for arg in string.split(c.environment):
417 key, val = string.split(arg, '=')
419 save_vals[key] = os.environ[key]
421 delete_keys.append(key)
422 os.environ[key] = val
423 test.run(interpreter = sys.executable,
425 # We use ToolSurrogates to capture win32 output by "building"
426 # examples using a fake win32 tool chain. Suppress the
427 # warnings that come from the new revamped VS support so
428 # we can build doc on (Linux) systems that don't have
429 # Visual C installed.
430 arguments = '--warn=no-visual-c-missing -f - ' + string.join(args),
431 chdir = test.workpath('WORK'),
432 stdin = Stdin % dict)
433 os.environ.update(save_vals)
434 for key in delete_keys:
437 out = string.replace(out, test.workpath('ROOT'), '')
438 out = string.replace(out, test.workpath('WORK/SConstruct'),
439 '/home/my/project/SConstruct')
440 lines = string.split(out, '\n')
442 while lines[-1] == '':
446 # sys.stderr.write(err)
449 def command_touch(args, c, test, dict):
451 t = int(time.mktime(time.strptime(args[1], '%Y%m%d%H%M')))
458 if not os.path.isabs(file):
459 file = os.path.join(test.workpath('WORK'), file)
460 if not os.path.exists(file):
462 os.utime(file, times)
465 def command_edit(args, c, test, dict):
467 add_string = c.edit[:]
468 except AttributeError:
469 add_string = 'void edit(void) { ; }\n'
470 if add_string[-1] != '\n':
471 add_string = add_string + '\n'
473 if not os.path.isabs(file):
474 file = os.path.join(test.workpath('WORK'), file)
475 contents = open(file, 'rb').read()
476 open(file, 'wb').write(contents + add_string)
479 def command_ls(args, c, test, dict):
481 files = os.listdir(a)
482 files = filter(lambda x: x[0] != '.', files)
484 return [string.join(files, ' ')]
488 l.extend(ls(test.workpath('WORK', a)))
491 return ls(test.workpath('WORK'))
494 'scons' : command_scons,
495 'touch' : command_touch,
496 'edit' : command_edit,
500 def ExecuteCommand(args, c, t, dict):
502 func = CommandDict[args[0]]
504 func = lambda args, c, t, dict: []
505 return func(args[1:], c, t, dict)
507 class MySGML(sgmllib.SGMLParser):
508 """A subclass of the standard Python 2.2 sgmllib SGML parser.
510 This extends the standard sgmllib parser to recognize, and do cool
511 stuff with, the added tags that describe our SCons examples,
512 commands, and other stuff.
514 Note that this doesn't work with the 1.5.2 sgmllib module, because
515 that didn't have the ability to work with ENTITY declarations.
517 def __init__(self, outfp):
518 sgmllib.SGMLParser.__init__(self)
523 # The first set of methods here essentially implement pass-through
524 # handling of most of the stuff in an SGML file. We're really
525 # only concerned with the tags specific to SCons example processing,
526 # the methods for which get defined below.
528 def handle_data(self, data):
530 f = self.afunclist[-1]
532 self.outfp.write(data)
536 def handle_comment(self, data):
537 self.outfp.write('<!--' + data + '-->')
539 def handle_decl(self, data):
540 self.outfp.write('<!' + data + '>')
542 def unknown_starttag(self, tag, attrs):
544 f = self.example.afunc
545 except AttributeError:
551 for name, value in attrs:
552 f(' ' + name + '=' + '"' + value + '"')
555 def unknown_endtag(self, tag):
556 self.outfp.write('</' + tag + '>')
558 def unknown_entityref(self, ref):
559 self.outfp.write('&' + ref + ';')
561 def unknown_charref(self, ref):
562 self.outfp.write('&#' + ref + ';')
564 # Here is where the heavy lifting begins. The following methods
565 # handle the begin-end tags of our SCons examples.
567 def start_scons_example(self, attrs):
568 t = filter(lambda t: t[0] == 'name', attrs)
572 e = self.examples[name]
574 e = self.examples[name] = Example()
577 for name, value in attrs:
578 setattr(e, name, value)
580 self.afunclist.append(e.afunc)
582 def end_scons_example(self):
584 files = filter(lambda f: f.printme, e.files)
586 self.outfp.write('<programlisting>')
590 while f.data[i] == ' ':
592 output = string.replace(f.data[:i+1], '__ROOT__', '')
593 output = string.replace(output, '<', '<')
594 output = string.replace(output, '>', '>')
595 self.outfp.write(output)
596 if e.data and e.data[0] == '\n':
598 self.outfp.write(e.data + '</programlisting>')
600 self.afunclist = self.afunclist[:-1]
602 def start_file(self, attrs):
605 except AttributeError:
606 self.error("<file> tag outside of <scons_example>")
607 t = filter(lambda t: t[0] == 'name', attrs)
609 self.error("no <file> name attribute found")
612 except AttributeError:
617 for name, value in attrs:
618 setattr(f, name, value)
620 self.afunclist.append(f.afunc)
624 self.afunclist = self.afunclist[:-1]
626 def start_directory(self, attrs):
629 except AttributeError:
630 self.error("<directory> tag outside of <scons_example>")
631 t = filter(lambda t: t[0] == 'name', attrs)
633 self.error("no <directory> name attribute found")
636 except AttributeError:
639 d = Directory(t[0][1])
640 for name, value in attrs:
641 setattr(d, name, value)
643 self.afunclist.append(d.afunc)
645 def end_directory(self):
647 self.afunclist = self.afunclist[:-1]
649 def start_scons_example_file(self, attrs):
650 t = filter(lambda t: t[0] == 'example', attrs)
652 self.error("no <scons_example_file> example attribute found")
655 e = self.examples[exname]
657 self.error("unknown example name '%s'" % exname)
658 fattrs = filter(lambda t: t[0] == 'name', attrs)
660 self.error("no <scons_example_file> name attribute found")
662 f = filter(lambda f, fname=fname: f.name == fname, e.files)
664 self.error("example '%s' does not have a file named '%s'" % (exname, fname))
667 def end_scons_example_file(self):
669 self.outfp.write('<programlisting>')
670 self.outfp.write(f.data + '</programlisting>')
673 def start_scons_output(self, attrs):
674 t = filter(lambda t: t[0] == 'example', attrs)
676 self.error("no <scons_output> example attribute found")
679 e = self.examples[exname]
681 self.error("unknown example name '%s'" % exname)
682 # Default values for an example.
689 for name, value in attrs:
690 setattr(o, name, value)
692 self.afunclist.append(o.afunc)
694 def end_scons_output(self):
695 # The real raison d'etre for this script, this is where we
696 # actually execute SCons to fetch the output.
699 t = TestCmd.TestCmd(workdir='', combine=1)
702 t.subdir('ROOT', 'WORK')
703 t.rootpath = string.replace(t.workpath('ROOT'), '\\', '\\\\')
706 dir = t.workpath('WORK', d.name)
707 if not os.path.exists(dir):
712 while f.data[i] == '\n':
714 lines = string.split(f.data[i:], '\n')
716 while lines[0][i] == ' ':
718 lines = map(lambda l, i=i: l[i:], lines)
719 path = string.replace(f.name, '__ROOT__', t.rootpath)
720 if not os.path.isabs(path):
721 path = t.workpath('WORK', path)
722 dir, name = os.path.split(path)
723 if dir and not os.path.exists(dir):
725 content = string.join(lines, '\n')
726 content = string.replace(content, '__ROOT__', t.rootpath)
727 path = t.workpath('WORK', path)
728 t.write(path, content)
729 if hasattr(f, 'chmod'):
730 os.chmod(path, int(f.chmod, 0))
733 while o.prefix[i-1] != '\n':
736 self.outfp.write('<screen>' + o.prefix[:i])
739 # Regular expressions for making the doc output consistent,
740 # regardless of reported addresses or Python version.
742 # Massage addresses in object repr strings to a constant.
743 address_re = re.compile(r' at 0x[0-9a-fA-F]*\>')
745 # Massage file names in stack traces (sometimes reported as absolute
746 # paths) to a consistent relative path.
747 engine_re = re.compile(r' File ".*/src/engine/SCons/')
749 # Python 2.5 changed the stack trace when the module is read
750 # from standard input from read "... line 7, in ?" to
751 # "... line 7, in <module>".
752 file_re = re.compile(r'^( *File ".*", line \d+, in) \?$', re.M)
754 # Python 2.6 made UserList a new-style class, which changes the
755 # AttributeError message generated by our NodeList subclass.
756 nodelist_re = re.compile(r'(AttributeError:) NodeList instance (has no attribute \S+)')
758 for c in o.commandlist:
759 self.outfp.write(p + Prompt[o.os])
760 d = string.replace(c.data, '__ROOT__', '')
761 self.outfp.write('<userinput>' + d + '</userinput>\n')
763 e = string.replace(c.data, '__ROOT__', t.workpath('ROOT'))
764 args = string.split(e)
765 lines = ExecuteCommand(args, c, t, {'osname':o.os, 'tools':o.tools})
770 content = string.join(lines, '\n' + p)
772 content = address_re.sub(r' at 0x700000>', content)
773 content = engine_re.sub(r' File "bootstrap/src/engine/SCons/', content)
774 content = file_re.sub(r'\1 <module>', content)
775 content = nodelist_re.sub(r"\1 'NodeList' object \2", content)
776 content = string.replace(content, '<', '<')
777 content = string.replace(content, '>', '>')
778 self.outfp.write(p + content + '\n')
780 if o.data[0] == '\n':
782 self.outfp.write(o.data + '</screen>')
784 self.afunclist = self.afunclist[:-1]
786 def start_scons_output_command(self, attrs):
789 except AttributeError:
790 self.error("<scons_output_command> tag outside of <scons_output>")
793 except AttributeError:
797 for name, value in attrs:
798 setattr(c, name, value)
799 o.commandlist.append(c)
800 self.afunclist.append(c.afunc)
802 def end_scons_output_command(self):
804 self.afunclist = self.afunclist[:-1]
806 def start_sconstruct(self, attrs):
809 self.afunclist.append(f.afunc)
811 def end_sconstruct(self):
813 self.outfp.write('<programlisting>')
814 output = string.replace(f.data, '__ROOT__', '')
815 self.outfp.write(output + '</programlisting>')
817 self.afunclist = self.afunclist[:-1]
819 def process(filename):
824 f = open(filename, 'r')
825 except EnvironmentError, e:
826 sys.stderr.write('%s: %s\n' % (filename, msg))
830 if f is not sys.stdin:
833 if data.startswith('<?xml '):
834 first_line, data = data.split('\n', 1)
835 sys.stdout.write(first_line + '\n')
837 x = MySGML(sys.stdout)
848 parser = optparse.OptionParser()
849 opts, args = parser.parse_args(argv[1:])
857 if __name__ == "__main__":
862 # indent-tabs-mode:nil
864 # vim: set expandtab tabstop=4 shiftwidth=4: