1 files changed, 273 insertions, 0 deletions
diff --git a/buildtools/wafsamba/samba_bundled.py b/buildtools/wafsamba/samba_bundled.py
new file mode 100644
index 0000000..029be15
--- /dev/null
+++ b/buildtools/wafsamba/samba_bundled.py
@@ -0,0 +1,273 @@
+# 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 name in bld.env.PRIVATE_EXTENSION_EXCEPTION:
+        return name
+
+    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 minimum 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=None,
+        onlyif=None, implied_deps=None, pkg=None):
+    '''check if a library is available as a system library.
+
+    This only tries using pkg-config
+    '''
+    if version_blacklist is None:
+        version_blacklist = []
+    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=None,
+                         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
+    if version_blacklist is None:
+        version_blacklist = []
+    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
+
+