gen_make.py

subversion-1.4.3-1.tar.gz 配置svn的源码

#
# gen_make.py -- generate makefiles and dependencies
#

import os
import sys
import string

import gen_base
import generator.swig.header_wrappers
import generator.swig.checkout_swig_header
import generator.swig.external_runtime
import generator.util.executable
_exec = generator.util.executable

from gen_base import build_path_join, build_path_strip, build_path_splitfile, \
      build_path_basename, build_path_dirname, build_path_retreat, unique

try:
  True
except NameError:
  True = 1
  False = 0

class Generator(gen_base.GeneratorBase):

  _extension_map = {
    ('exe', 'target'): '$(EXEEXT)',
    ('exe', 'object'): '.o',
    ('lib', 'target'): '.la',
    ('lib', 'object'): '.lo',
    }

  def __init__(self, fname, verfname, options=None):
    gen_base.GeneratorBase.__init__(self, fname, verfname, options)
    self.section_counter = 0
    self.assume_shared_libs = False
    if ('--assume-shared-libs', '') in options:
      self.assume_shared_libs = True

  def begin_section(self, description):
    self.section_counter = self.section_counter + 1
    count = self.section_counter

    self.ofile.write('\n########################################\n')
    self.ofile.write('# Section %d: %s\n' % (count, description))
    self.ofile.write('########################################\n\n')

  def write(self):
    self.ofile = open('build-outputs.mk', 'w')
    self.ofile.write('# DO NOT EDIT -- AUTOMATICALLY GENERATED\n')

    install_deps = self.graph.get_deps(gen_base.DT_INSTALL)
    install_sources = self.graph.get_all_sources(gen_base.DT_INSTALL)

    # ensure consistency between runs
    install_deps.sort()
    install_sources.sort(lambda s1, s2: cmp(s1.name, s2.name))

    ########################################
    self.begin_section('Global make variables')
    
    for target in install_sources:
      if isinstance(target, gen_base.TargetRaModule) or \
         isinstance(target, gen_base.TargetFsModule):
        # name of the module: strip 'libsvn_' and upper-case it
        name = string.upper(target.name[7:])

        # construct a list of the other .la libs to link against
        retreat = build_path_retreat(target.path)
        deps = [ target.filename ]
        link = [ build_path_join(retreat, target.filename) ]
        for source in self.graph.get_sources(gen_base.DT_LINK, target.name):
          if not isinstance(source, gen_base.TargetLib) or source.external_lib:
            continue
          deps.append(source.filename)
          link.append(build_path_join(retreat, source.filename))

        self.ofile.write('%s_DEPS = %s\n'
                         '%s_LINK = %s\n\n' % (name, string.join(deps, ' '),
                                               name, string.join(link, ' ')))

    # write a list of directories in which things are built
    #   get all the test scripts' directories
    script_dirs = map(build_path_dirname, self.scripts + self.bdb_scripts)

    #   remove duplicate directories between targets and tests
    build_dirs = unique(self.target_dirs + script_dirs + self.swig_dirs)

    self.ofile.write('BUILD_DIRS = %s\n\n' % string.join(build_dirs))

    # write lists of test files
    # deps = all, progs = not including those marked "testing = skip"
    self.ofile.write('BDB_TEST_DEPS = %s\n\n' %
                     string.join(self.bdb_test_deps + self.bdb_scripts))
    self.ofile.write('BDB_TEST_PROGRAMS = %s\n\n' %
                     string.join(self.bdb_test_progs + self.bdb_scripts))
    self.ofile.write('TEST_DEPS = %s\n\n' %
                     string.join(self.test_deps + self.scripts))
    self.ofile.write('TEST_PROGRAMS = %s\n\n' %
                     string.join(self.test_progs + self.scripts))

    # write list of all manpages
    self.ofile.write('MANPAGES = %s\n\n' % string.join(self.manpages))

    # write a list of files to remove during "make clean"
    cfiles = [ ]
    for target in install_sources:
      # .la files are handled by the standard 'clean' rule; clean all the
      # other targets
      if not isinstance(target, gen_base.TargetScript) \
         and not isinstance(target, gen_base.TargetProject) \
         and not isinstance(target, gen_base.TargetI18N) \
         and not isinstance(target, gen_base.TargetJava) \
         and not target.external_lib \
         and target.filename[-3:] != '.la':
        cfiles.append(target.filename)
    cfiles.sort()
    self.ofile.write('CLEAN_FILES = %s\n\n' % string.join(cfiles))

    # this is here because autogen-standalone needs it too
    self.ofile.write('SWIG_INCLUDES = -I$(abs_srcdir)/subversion/include \\\n'
        '  -I$(abs_srcdir)/subversion/bindings/swig \\\n'
        '  -I$(abs_srcdir)/subversion/bindings/swig/include \\\n'
        '  -I$(abs_srcdir)/subversion/bindings/swig/proxy \\\n'
        '  -I$(abs_builddir)/subversion/bindings/swig/proxy \\\n'
        '  $(SVN_APR_INCLUDES) $(SVN_APRUTIL_INCLUDES)\n\n')

    if self.release_mode:
      self.ofile.write('RELEASE_MODE = 1\n\n')
    
    ########################################
    self.begin_section('SWIG headers (wrappers and external runtimes)')

    if not self.release_mode:
      for swig in (generator.swig.header_wrappers,
                   generator.swig.checkout_swig_header,
                   generator.swig.external_runtime):
        gen = swig.Generator(self.conf, "swig")
        gen.write_makefile_rules(self.ofile)

    ########################################
    self.begin_section('SWIG autogen rules')

    # write dependencies and build rules for generated .c files
    swig_c_deps = self.graph.get_deps(gen_base.DT_SWIG_C)
    swig_c_deps.sort(lambda (t1, s1), (t2, s2): cmp(t1.filename, t2.filename))

    swig_lang_deps = {}
    for lang in self.swig.langs:
      swig_lang_deps[lang] = []
      
    short = self.swig.short
    for objname, sources in swig_c_deps:
      lang = objname.lang
      swig_lang_deps[lang].append(str(objname))
    
    for lang in self.swig.langs:
      lang_deps = string.join(swig_lang_deps[lang])
      self.ofile.write(
        'autogen-swig-%s: %s\n' % (short[lang], lang_deps) +
        'autogen-swig: autogen-swig-%s\n' % short[lang] +
        '\n')
    self.ofile.write('\n')
    
    ########################################
    self.begin_section('Rules to build SWIG .c files from .i files')

    for objname, sources in swig_c_deps:
      deps = string.join(map(str, sources))
      source = str(sources[0])
      source_dir = build_path_dirname(source)
      opts = self.swig.opts[objname.lang]
      if not self.release_mode:
        self.ofile.write('%s: %s\n' % (objname, deps) +
          '\t$(SWIG) $(SWIG_INCLUDES) %s ' % opts +
          '-o $@ $(top_srcdir)/%s\n' % source
        )

    self.ofile.write('\n')

    ########################################
    self.begin_section('Individual target build rules')

    for target_ob in install_sources:

      if isinstance(target_ob, gen_base.TargetScript):
        # there is nothing to build
        continue

      target = target_ob.name
      if isinstance(target_ob, gen_base.TargetJava):
        path = target_ob.output_dir
      else:
        path = target_ob.path

      retreat = build_path_retreat(path)

      # get the source items (.o and .la) for the link unit
      objects = [ ]
      object_srcs = [ ]
      headers = [ ]
      header_classes = [ ]
      header_class_filenames = [ ]
      deps = [ ]
      libs = [ ]

      for link_dep in self.graph.get_sources(gen_base.DT_LINK, target_ob.name):
        if isinstance(link_dep, gen_base.TargetJava):
          deps.append(link_dep.name)
        elif isinstance(link_dep, gen_base.TargetLinked):
          if link_dep.external_lib:
            libs.append(link_dep.external_lib)
          elif link_dep.external_project:
            # FIXME: This is a temporary workaround to fix build breakage
            # expeditiously.  It is of questionable validity for a build
            # node to have external_project but not have external_lib.
            pass
          else:
            # append the output of the target to our stated dependencies
            if not self.assume_shared_libs:
              deps.append(link_dep.filename)

            # link against the library
            libs.append(build_path_join(retreat, link_dep.filename))
        elif isinstance(link_dep, gen_base.ObjectFile):
          # link in the object file
          objects.append(link_dep.filename)
          for dep in self.graph.get_sources(gen_base.DT_OBJECT, link_dep, gen_base.SourceFile):
            object_srcs.append(
              build_path_join('$(abs_srcdir)', dep.filename))
        elif isinstance(link_dep, gen_base.HeaderFile):
          # link in the header file
          # N.B. that filename_win contains the '_'-escaped class name
          headers.append(link_dep.filename_win)
          header_classes.append(link_dep.classname)
          for dep in self.graph.get_sources(gen_base.DT_OBJECT, link_dep, gen_base.ObjectFile):
            header_class_filenames.append(dep.filename)
        else:
          ### we don't know what this is, so we don't know what to do with it
          raise UnknownDependency

      for nonlib in self.graph.get_sources(gen_base.DT_NONLIB, target_ob.name):
        if isinstance(nonlib, gen_base.TargetLinked):
          if not nonlib.external_lib:
            deps.append(nonlib.filename)

      targ_varname = string.replace(target, '-', '_')
      objnames = string.join(build_path_strip(path, objects))

      # Output value of path variable
      self.ofile.write('%s_PATH = %s\n' % (targ_varname, path))
      
      # Add additional install dependencies if necessary
      if target_ob.add_install_deps:
        self.ofile.write('install-%s: %s\n'
          % (target_ob.install, target_ob.add_install_deps))