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-rw-r--r--buildtools/wafsamba/samba_bundled.py266
1 files changed, 266 insertions, 0 deletions
diff --git a/buildtools/wafsamba/samba_bundled.py b/buildtools/wafsamba/samba_bundled.py
new file mode 100644
index 0000000..7d2d855
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+++ b/buildtools/wafsamba/samba_bundled.py
@@ -0,0 +1,266 @@
+# functions to support bundled libraries
+
+import sys
+from waflib import Build, Options, Logs
+from waflib.Configure import conf
+from wafsamba import samba_utils
+
+def PRIVATE_NAME(bld, name):
+ '''possibly rename a library to include a bundled extension'''
+
+ extension = bld.env.PRIVATE_EXTENSION
+
+ if extension and name.startswith('%s' % extension):
+ return name
+
+ if extension and name.endswith('%s' % extension):
+ return name
+
+ return "%s-%s" % (name, extension)
+
+
+def target_in_list(target, lst, default):
+ for l in lst:
+ if target == l:
+ return True
+ if '!' + target == l:
+ return False
+ if l == 'ALL':
+ return True
+ if l == 'NONE':
+ return False
+ return default
+
+
+def BUILTIN_LIBRARY(bld, name):
+ '''return True if a library should be builtin
+ instead of being built as a shared lib'''
+ return target_in_list(name, bld.env.BUILTIN_LIBRARIES, False)
+Build.BuildContext.BUILTIN_LIBRARY = BUILTIN_LIBRARY
+
+
+def BUILTIN_DEFAULT(opt, builtins):
+ '''set a comma separated default list of builtin libraries for this package'''
+ if 'BUILTIN_LIBRARIES_DEFAULT' in Options.options.__dict__:
+ return
+ Options.options.__dict__['BUILTIN_LIBRARIES_DEFAULT'] = builtins
+Options.OptionsContext.BUILTIN_DEFAULT = BUILTIN_DEFAULT
+
+
+def PRIVATE_EXTENSION_DEFAULT(opt, extension, noextension=''):
+ '''set a default private library extension'''
+ if 'PRIVATE_EXTENSION_DEFAULT' in Options.options.__dict__:
+ return
+ Options.options.__dict__['PRIVATE_EXTENSION_DEFAULT'] = extension
+ Options.options.__dict__['PRIVATE_EXTENSION_EXCEPTION'] = noextension
+Options.OptionsContext.PRIVATE_EXTENSION_DEFAULT = PRIVATE_EXTENSION_DEFAULT
+
+
+def minimum_library_version(conf, libname, default):
+ '''allow override of mininum system library version'''
+
+ minlist = Options.options.MINIMUM_LIBRARY_VERSION
+ if not minlist:
+ return default
+
+ for m in minlist.split(','):
+ a = m.split(':')
+ if len(a) != 2:
+ Logs.error("Bad syntax for --minimum-library-version of %s" % m)
+ sys.exit(1)
+ if a[0] == libname:
+ return a[1]
+ return default
+
+
+@conf
+def LIB_MAY_BE_BUNDLED(conf, libname):
+ if libname in conf.env.SYSTEM_LIBS:
+ return False
+ if libname in conf.env.BUNDLED_LIBS:
+ return True
+ if '!%s' % libname in conf.env.BUNDLED_LIBS:
+ return False
+ if 'NONE' in conf.env.BUNDLED_LIBS:
+ return False
+ return True
+
+def __LIB_MUST_BE(liblist, libname):
+ if libname in liblist:
+ return True
+ if '!%s' % libname in liblist:
+ return False
+ if 'ALL' in liblist:
+ return True
+ return False
+
+@conf
+def LIB_MUST_BE_BUNDLED(conf, libname):
+ return __LIB_MUST_BE(conf.env.BUNDLED_LIBS, libname)
+
+@conf
+def LIB_MUST_BE_PRIVATE(conf, libname):
+ return __LIB_MUST_BE(conf.env.PRIVATE_LIBS, libname)
+
+@conf
+def CHECK_BUNDLED_SYSTEM_PKG(conf, libname, minversion='0.0.0',
+ maxversion=None, version_blacklist=[],
+ onlyif=None, implied_deps=None, pkg=None):
+ '''check if a library is available as a system library.
+
+ This only tries using pkg-config
+ '''
+ return conf.CHECK_BUNDLED_SYSTEM(libname,
+ minversion=minversion,
+ maxversion=maxversion,
+ version_blacklist=version_blacklist,
+ onlyif=onlyif,
+ implied_deps=implied_deps,
+ pkg=pkg)
+
+@conf
+def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
+ maxversion=None, version_blacklist=[],
+ checkfunctions=None, headers=None, checkcode=None,
+ onlyif=None, implied_deps=None,
+ require_headers=True, pkg=None, set_target=True):
+ '''check if a library is available as a system library.
+ this first tries via pkg-config, then if that fails
+ tries by testing for a specified function in the specified lib
+ '''
+ # We always do a logic validation of 'onlyif' first
+ missing = []
+ if onlyif:
+ for l in samba_utils.TO_LIST(onlyif):
+ f = 'FOUND_SYSTEMLIB_%s' % l
+ if not f in conf.env:
+ Logs.error('ERROR: CHECK_BUNDLED_SYSTEM(%s) - ' % (libname) +
+ 'missing prerequisite check for ' +
+ 'system library %s, onlyif=%r' % (l, onlyif))
+ sys.exit(1)
+ if not conf.env[f]:
+ missing.append(l)
+ found = 'FOUND_SYSTEMLIB_%s' % libname
+ if found in conf.env:
+ return conf.env[found]
+ if conf.LIB_MUST_BE_BUNDLED(libname):
+ conf.env[found] = False
+ return False
+
+ # see if the library should only use a system version if another dependent
+ # system version is found. That prevents possible use of mixed library
+ # versions
+ if missing:
+ if not conf.LIB_MAY_BE_BUNDLED(libname):
+ Logs.error('ERROR: Use of system library %s depends on missing system library/libraries %r' % (libname, missing))
+ sys.exit(1)
+ conf.env[found] = False
+ return False
+
+ def check_functions_headers_code():
+ '''helper function for CHECK_BUNDLED_SYSTEM'''
+ if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
+ return False
+ if checkfunctions is not None:
+ ok = conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
+ empty_decl=False, set_target=False)
+ if not ok:
+ return False
+ if checkcode is not None:
+ define='CHECK_BUNDLED_SYSTEM_%s' % libname.upper()
+ ok = conf.CHECK_CODE(checkcode, lib=libname,
+ headers=headers, local_include=False,
+ msg=msg, define=define)
+ conf.CONFIG_RESET(define)
+ if not ok:
+ return False
+ return True
+
+ minversion = minimum_library_version(conf, libname, minversion)
+
+ msg = 'Checking for system %s' % libname
+ msg_ver = []
+ if minversion != '0.0.0':
+ msg_ver.append('>=%s' % minversion)
+ if maxversion is not None:
+ msg_ver.append('<=%s' % maxversion)
+ for v in version_blacklist:
+ msg_ver.append('!=%s' % v)
+ if msg_ver != []:
+ msg += " (%s)" % (" ".join(msg_ver))
+
+ uselib_store=libname.upper()
+ if pkg is None:
+ pkg = libname
+
+ version_checks = '%s >= %s' % (pkg, minversion)
+ if maxversion is not None:
+ version_checks += ' %s <= %s' % (pkg, maxversion)
+
+ version_checks += "".join(' %s != %s' % (pkg, v) for v in version_blacklist)
+
+ # try pkgconfig first
+ if (conf.CHECK_CFG(package=pkg,
+ args='"%s" --cflags --libs' % (version_checks),
+ msg=msg, uselib_store=uselib_store) and
+ check_functions_headers_code()):
+ if set_target:
+ conf.SET_TARGET_TYPE(libname, 'SYSLIB')
+ conf.env[found] = True
+ if implied_deps:
+ conf.SET_SYSLIB_DEPS(libname, implied_deps)
+ return True
+ if checkfunctions is not None:
+ if check_functions_headers_code():
+ conf.env[found] = True
+ if implied_deps:
+ conf.SET_SYSLIB_DEPS(libname, implied_deps)
+ if set_target:
+ conf.SET_TARGET_TYPE(libname, 'SYSLIB')
+ return True
+ conf.env[found] = False
+ if not conf.LIB_MAY_BE_BUNDLED(libname):
+ Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
+ sys.exit(1)
+ return False
+
+
+def tuplize_version(version):
+ return tuple([int(x) for x in version.split(".")])
+
+@conf
+def CHECK_BUNDLED_SYSTEM_PYTHON(conf, libname, modulename, minversion='0.0.0'):
+ '''check if a python module is available on the system and
+ has the specified minimum version.
+ '''
+ if conf.LIB_MUST_BE_BUNDLED(libname):
+ return False
+
+ # see if the library should only use a system version if another dependent
+ # system version is found. That prevents possible use of mixed library
+ # versions
+ minversion = minimum_library_version(conf, libname, minversion)
+
+ try:
+ m = __import__(modulename)
+ except ImportError:
+ found = False
+ else:
+ try:
+ version = m.__version__
+ except AttributeError:
+ found = False
+ else:
+ found = tuplize_version(version) >= tuplize_version(minversion)
+ if not found and not conf.LIB_MAY_BE_BUNDLED(libname):
+ Logs.error('ERROR: Python module %s of version %s not found, and bundling disabled' % (libname, minversion))
+ sys.exit(1)
+ return found
+
+
+def NONSHARED_BINARY(bld, name):
+ '''return True if a binary should be built without non-system shared libs'''
+ return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
+Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY
+
+