def _generate_resource_index(targets, sources, name, path):
"""Generate resource index description file for a cc resource library"""
header, source = targets
with open(header, 'w') as h, open(source, 'w') as c:
full_name = blade_util.regular_variable_name(os.path.join(path, name))
guard_name = 'BLADE_RESOURCE_%s_H_' % full_name.upper()
index_name = 'RESOURCE_INDEX_%s' % full_name
h.write(textwrap.dedent('''\
// This file was automatically generated by blade
#ifndef {0}
#define {0}
#ifdef __cplusplus
extern "C" {{
#endif
#ifndef BLADE_RESOURCE_TYPE_DEFINED
#define BLADE_RESOURCE_TYPE_DEFINED
struct BladeResourceEntry {{
const char* name;
const char* data;
unsigned int size;
}};
#endif''').format(guard_name))
c.write(textwrap.dedent('''\
// This file was automatically generated by blade
#include "{0}"
const struct BladeResourceEntry {1}[] = {{''').format(header, index_name))
for s in sources:
entry_var = blade_util.regular_variable_name(s)
entry_name = os.path.relpath(s, path)
entry_size = os.path.getsize(s)
h.write('// %s\n' % entry_name)
h.write('extern const char RESOURCE_%s[%d];\n' % (entry_var, entry_size))
h.write('extern const unsigned RESOURCE_%s_len;\n' % entry_var)
c.write(' { "%s", RESOURCE_%s, %s },\n' % (entry_name, entry_var, entry_size))
c.write(textwrap.dedent('''\
}};
const unsigned {0}_len = {1};''').format(index_name, len(sources)))
h.write(textwrap.dedent('''\
// Resource index
extern const struct BladeResourceEntry {0}[];
extern const unsigned {0}_len;
#ifdef __cplusplus
}} // extern "C"
#endif
#endif // {1}''').format(index_name, guard_name))
def ninja_rules(self):
rule = '%s__rule__' % regular_variable_name(
self._source_file_path(self.name))
cmd = self.ninja_command()
description = console.colored(
'%s //%s' % (self.data['cmd_name'], self.fullname), 'dimpurple')
self._write_rule('''rule %s
command = %s && cd %s && ls ${out} > /dev/null
description = %s
''' % (rule, cmd, self.blade.get_root_dir(), description))
outputs = [self._target_file_path(o) for o in self.data['outs']]
inputs = self._expand_srcs()
vars = {}
if '${_in_1}' in cmd:
vars['_in_1'] = inputs[0]
if '${_out_1}' in cmd:
vars['_out_1'] = outputs[0]
if self.data['heavy']:
vars['pool'] = 'heavy_pool'
self.ninja_build(rule,
outputs,
inputs=inputs,
implicit_deps=self.implicit_dependencies(),
variables=vars)
for i, out in enumerate(outputs):
self._add_target_file(str(i), out)
def generate(self):
"""Generate code for backend build system."""
# NOTE: Here is something different with normal targets.
# We have to generate each `rule` for a `gen_rule` target but not sharing a predefined rule.
# Because the `command` variable is not lazy evaluated althrough it can be overridden in a
# `build` statement, so any other build scoped variables are expanded to empty.
rule = '%s__rule__' % regular_variable_name(
self._source_file_path(self.name))
cmd = self._expand_command()
description = console.colored(
'%s %s' % (self.attr['cmd_name'], self.fullname), 'dimpurple')
self._write_rule(_RULE_FORMAT %
(rule, cmd, self.blade.get_root_dir(), description))
outputs = [self._target_file_path(o) for o in self.attr['outs']]
inputs = self._expand_srcs()
vars = {}
if '${_in_1}' in cmd:
vars['_in_1'] = inputs[0]
if '${_out_1}' in cmd:
vars['_out_1'] = outputs[0]
if self.attr['heavy']:
vars['pool'] = 'heavy_pool'
self.generate_build(rule,
outputs,
inputs=inputs,
implicit_deps=self.implicit_dependencies(),
variables=vars)
for i, out in enumerate(outputs):
self._add_target_file(str(i), out)
def ninja_rules(self):
self._check_deprecated_deps()
if not self.srcs:
return
resources = [self._source_file_path(s) for s in self.srcs]
index = [
self._target_file_path('%s.h' % self.name),
self._target_file_path('%s.c' % self.name)
]
self.ninja_build('resource_index',
index,
inputs=resources,
variables={
'name': regular_variable_name(self.name),
'path': self.path
})
sources = ['%s.c' % self.name]
for resource in self.srcs:
generated_source = '%s.c' % resource
self.ninja_build('resource',
self._target_file_path(generated_source),
inputs=self._source_file_path(resource))
sources.append(generated_source)
objs = self._generated_cc_objects(sources)
self._cc_library(objs)
