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__all__ = [ "check_pkg_config", "check_pkg_config_mixed", "check_pkg_config_mixed_all", "check_pkg_config_cflags", "check_cc", "check_statement", "check_libs", "check_headers", "compose_checks", "check_true", "any_version", "load_fragment", "check_stub", "check_ctx_vars", "check_program", "check_pkg_config_datadir"]
any_version = None
def even(n): return n % 2 == 0
def __define_options__(dependency_identifier): return inflector.define_dict(dependency_identifier)
def __merge_options__(dependency_identifier, *args): options_accu = inflector.storage_dict(dependency_identifier) options_accu['mandatory'] = False [options_accu.update(arg) for arg in args if arg] return options_accu
def _filter_cc_arguments(ctx, opts): if ctx.env.DEST_OS != Utils.unversioned_sys_platform(): # cross compiling, remove execute=True if present if opts.get('execute'): opts['execute'] = False return opts
def check_program(name, var): def fn(ctx, dependency_identifier): return ctx.find_program(name, var=var, mandatory=False) return fn
def check_libs(libs, function): libs = [None] + libs def fn(ctx, dependency_identifier): for lib in libs: kwargs = lib and {'lib': lib} or {} if function(ctx, dependency_identifier, **kwargs): return True return False return fn
def check_statement(header, statement, **kw_ext): def fn(ctx, dependency_identifier, **kw): headers = header if not isinstance(headers, list): headers = [header] hs = "\n".join(["#include <{0}>".format(h) for h in headers]) fragment = ("{0}\n" "int main(int argc, char **argv)\n" "{{ {1}; return 0; }}").format(hs, statement) opts = __merge_options__(dependency_identifier, {'fragment':fragment}, __define_options__(dependency_identifier), kw_ext, kw) return ctx.check_cc(**_filter_cc_arguments(ctx, opts)) return fn
def check_cc(**kw_ext): def fn(ctx, dependency_identifier, **kw): options = __merge_options__(dependency_identifier, __define_options__(dependency_identifier), kw_ext, kw) return ctx.check_cc(**_filter_cc_arguments(ctx, options)) return fn
def check_pkg_config(*args, **kw_ext): return _check_pkg_config([], ["--libs", "--cflags"], *args, **kw_ext)
def check_pkg_config_mixed(_dyn_libs, *args, **kw_ext): return _check_pkg_config([_dyn_libs], ["--libs", "--cflags"], *args, **kw_ext)
def check_pkg_config_mixed_all(*all_args, **kw_ext): args = [all_args[i] for i in [n for n in range(0, len(all_args)) if n % 3]] return _check_pkg_config(all_args[::3], ["--libs", "--cflags"], *args, **kw_ext)
def check_pkg_config_cflags(*args, **kw_ext): return _check_pkg_config([], ["--cflags"], *args, **kw_ext)
def check_pkg_config_datadir(*args, **kw_ext): return _check_pkg_config([], ["--variable=pkgdatadir"], *args, **kw_ext)
def _check_pkg_config(_dyn_libs, _pkgc_args, *args, **kw_ext): def fn(ctx, dependency_identifier, **kw): argsl = list(args) packages = args[::2] verchecks = args[1::2] sargs = [] pkgc_args = _pkgc_args dyn_libs = {} for i in range(0, len(packages)): if i < len(verchecks): sargs.append(packages[i] + ' ' + verchecks[i]) else: sargs.append(packages[i]) if _dyn_libs and _dyn_libs[i]: dyn_libs[packages[i]] = _dyn_libs[i] if ctx.dependency_satisfied('static-build') and not dyn_libs: pkgc_args += ["--static"]
defaults = { 'path': ctx.env.PKG_CONFIG, 'package': " ".join(packages), 'args': sargs + pkgc_args } opts = __merge_options__(dependency_identifier, defaults, kw_ext, kw)
# Warning! Megahack incoming: when parsing flags in `parse_flags` waf # uses append_unique. This appends the flags only if they aren't # already present in the list. This causes breakage if one checks for # multiple pkg-config packages in a single call as stuff like -lm is # added only at its first occurrence. original_append_unique = ConfigSet.append_unique ConfigSet.append_unique = ConfigSet.append_value result = ctx.check_cfg(**opts) ConfigSet.append_unique = original_append_unique
defkey = inflector.define_key(dependency_identifier) if result: ctx.define(defkey, 1) for x in dyn_libs.keys(): ctx.env['LIB_'+x] += dyn_libs[x] else: ctx.add_optional_message(dependency_identifier, "'{0}' not found".format(" ".join(sargs))) ctx.undefine(defkey) return result return fn
def check_headers(*headers, **kw_ext): def undef_others(ctx, headers, found): not_found_hs = set(headers) - set([found]) for not_found_h in not_found_hs: ctx.undefine(inflector.define_key(not_found_h))
def fn(ctx, dependency_identifier): for header in headers: defaults = {'header_name': header, 'features': 'c cprogram'} options = __merge_options__(dependency_identifier, defaults, kw_ext) if ctx.check(**options): undef_others(ctx, headers, header) ctx.define(inflector.define_key(dependency_identifier), 1) return True undef_others(ctx, headers, None) return False return fn
def check_true(ctx, dependency_identifier): ctx.define(inflector.define_key(dependency_identifier), 1) return True
def check_ctx_vars(*variables): def fn(ctx, dependency_identifier): missing = [] for variable in variables: if variable not in ctx.env: missing.append(variable)
if any(missing): ctx.add_optional_message(dependency_identifier, 'missing {0}'.format(', '.join(missing))) return False else: return True
return fn
def check_stub(ctx, dependency_identifier): ctx.undefine(inflector.define_key(dependency_identifier)) return False
def compose_checks(*checks): def fn(ctx, dependency_identifier): return all([check(ctx, dependency_identifier) for check in checks]) return fn
def load_fragment(fragment): file_path = os.path.join(os.path.dirname(__file__), '..', 'fragments', fragment) fp = open(file_path,"r") fragment_code = fp.read() fp.close() return fragment_code