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path: root/devbot/build.py
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import fnmatch
import re
import os
import multiprocessing
import shutil
import subprocess
from distutils.sysconfig import parse_makefile

from devbot import command
from devbot import config
from devbot import environ
from devbot import state
from devbot import utils
from devbot import release

_builders = {}
_distributors = {}

def build_one(module_name):
    environ.setup()

    for module in config.load_modules():
        if module.name == module_name:
            return _build_module(module)

    return False

def pull_one(module_name):
    environ.setup()

    for module in config.load_modules():
        if module.name == module_name:
            return _pull_module(module)

    return False

def pull():
    environ.setup()

    for module in config.load_modules():
        if not _pull_module(module):
            return False

    return True

def build(full=False):
    if full or state.full_build_is_required():
        state.clean_build_state()
        clean()

    environ.setup()

    _ccache_reset()

    state.full_build_touch()

    for module in config.load_modules():
        if state.built_module_is_unchanged(module):
            print "\n* Skipping unchanged module %s *" % module.name
        elif not _build_module(module, config.get_log_path("build")):
            return False

    _ccache_print_stats()

    return True

def distribute():
    environ.setup()

    for module in config.load_modules():
        if module.distribute:
            if not _distribute_module(module):
                break

    return True

def clean():
    _rmtree(config.install_dir)
    _rmtree(config.prefix_dir)
    _rmtree(config.get_build_dir())

    for module in config.load_modules():
        if not module.out_of_source:
            if module.get_git_module().clean():
                print "Cleaned %s git repository." % module.name

def _ccache_reset():
    subprocess.check_call(["ccache", "-z"], stdout=utils.devnull)

def _ccache_print_stats():
    print "\n=== ccache statistics ===\n"
    subprocess.check_call(["ccache", "-s"])

def _unlink_libtool_files():
    def func(arg, dirname, fnames):
        for fname in fnmatch.filter(fnames, "*.la"):
            os.unlink(os.path.join(dirname, fname))

    os.path.walk(config.lib_dir, func, None)

def _pull_module(module):
    print "\n=== Pulling %s ===\n" % module.name

    try:
        module.get_git_module().update()
    except subprocess.CalledProcessError:
        return False

    return True

def _eval_option(option):
    return eval(option, {"prefix": config.prefix_dir})

def _build_autotools(module, log):
    makefile_path = os.path.join(module.get_build_dir(), "Makefile")

    if not os.path.exists(makefile_path):
        configure = os.path.join(module.get_source_dir(), "autogen.sh")

        args = [configure,
                "--prefix", config.prefix_dir,
                "--libdir", config.lib_dir]
        args.extend(module.options)

        for option in module.options_evaluated:
            args.append(_eval_option(option))

        command.run(args, log)

    jobs = multiprocessing.cpu_count() * 2

    command.run(["make", "-j", "%d" % jobs], log)
    command.run(["make", "install"], log)

    _unlink_libtool_files()

_builders["autotools"] = _build_autotools

def _build_activity(module, log):
    setup = os.path.join(module.get_source_dir(), "setup.py")
    command.run([setup, "install", "--prefix", config.prefix_dir], log)

_builders["activity"] = _build_activity

def _distribute_autotools(module):
    makefile = parse_makefile("Makefile")
    filename = makefile["DIST_ARCHIVES"]
    version = makefile["VERSION"]

    git_module = module.get_git_module()

    version_revision = None
    description = git_module.describe()
    if description != "v%s" % version:
        match = re.match(r"(v[\d\.]+)", description)
        if match is None:
            print "No version tag was found"
            return False
        else:
            version_revision = match.groups()[0]

    if version_revision is not None:
        git_module.checkout(version_revision)

    command.run(["make", "distcheck"])

    result = False

    if not release.exists(module, filename):
        path = os.path.join(os.getcwd(), filename)
        if release.upload(module, path):
            annotation = git_module.get_annotation("v%s" % version)
            result = release.announce(module, filename, version, annotation)
    else:
        print "Release already uploaded"

    if version_revision is not None:
        git_module.checkout()

    return result

_distributors["autotools"] = _distribute_autotools

def _build_module(module, log=None):
    print "\n=== Building %s ===\n" % module.name

    source_dir = module.get_source_dir()

    if not os.path.exists(source_dir):
        print "Source directory does not exist. Please pull the sources " \
              "before building."
        return False

    if module.out_of_source:
        build_dir = module.get_build_dir()

        if not os.path.exists(build_dir):
            os.mkdir(build_dir)

        os.chdir(build_dir)
    else:
        os.chdir(source_dir)

    try:
        build_system = module.get_build_system()
        if build_system is None:
            return False

        _builders[build_system](module, log)
    except subprocess.CalledProcessError:
        return False

    state.built_module_touch(module)

    return True

def _distribute_module(module, log=None):
    print "\n=== Distribute %s ===\n" % module.name

    build_dir = module.get_build_dir()

    if not os.path.exists(build_dir):
        print "Build directory does not exist. Please build before " \
              "distributing."
        return False

    os.chdir(build_dir)

    try:
        build_system = module.get_build_system()
        if build_system is None:
            return False

        _distributors[build_system](module)
    except subprocess.CalledProcessError:
        return False

    return True

def _rmtree(dir):
    print "Deleting %s" % dir
    shutil.rmtree(dir, ignore_errors=True)