Something went wrong. Try again.
🎥 Command line media player
Something went wrong. Try again.
Python
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788#!/usr/bin/env python# encoding: utf-8# Christoph Koke, 2013# Original source: waflib/extras/clang_compilation_database.py from# waf git 5e4b86b81df3 (New BSD License)
"""Writes the c and cpp compile commands into build/compile_commands.jsonsee http://clang.llvm.org/docs/JSONCompilationDatabase.html
Usage:
def configure(conf): conf.load('compiler_cxx') ... conf.load('clang_compilation_database')"""
import sys, os, json, shlex, pipesfrom waflib import Logs, TaskGen, Task
Task.Task.keep_last_cmd = True
@TaskGen.feature('c', 'cxx')@TaskGen.after_method('process_use')def collect_compilation_db_tasks(self): "Add a compilation database entry for compiled tasks" try: clang_db = self.bld.clang_compilation_database_tasks except AttributeError: clang_db = self.bld.clang_compilation_database_tasks = [] self.bld.add_post_fun(write_compilation_database)
tup = tuple(y for y in [Task.classes.get(x) for x in ('c', 'cxx')] if y) for task in getattr(self, 'compiled_tasks', []): if isinstance(task, tup): clang_db.append(task)
def write_compilation_database(ctx): "Write the clang compilation database as JSON" database_file = ctx.bldnode.make_node('compile_commands.json') Logs.info('Build commands will be stored in %s', database_file.path_from(ctx.path)) try: root = json.load(database_file) except IOError: root = [] clang_db = dict((x['file'], x) for x in root) for task in getattr(ctx, 'clang_compilation_database_tasks', []): try: cmd = task.last_cmd except AttributeError: continue directory = getattr(task, 'cwd', ctx.variant_dir) f_node = task.inputs[0] filename = os.path.relpath(f_node.abspath(), directory) entry = { "directory": directory, "arguments": cmd, "file": filename, } clang_db[filename] = entry root = list(clang_db.values()) database_file.write(json.dumps(root, indent=2))
# Override the runnable_status function to do a dummy/dry run when the file doesn't need to be compiled.# This will make sure compile_commands.json is always fully up to date.# Previously you could end up with a partial compile_commands.json if the build failed.for x in ('c', 'cxx'): if x not in Task.classes: continue
t = Task.classes[x]
def runnable_status(self): def exec_command(cmd, **kw): pass
run_status = self.old_runnable_status() if run_status == Task.SKIP_ME: setattr(self, 'old_exec_command', getattr(self, 'exec_command', None)) setattr(self, 'exec_command', exec_command) self.run() setattr(self, 'exec_command', getattr(self, 'old_exec_command', None)) return run_status
setattr(t, 'old_runnable_status', getattr(t, 'runnable_status', None)) setattr(t, 'runnable_status', runnable_status)