import os
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import shutil
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import subprocess
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import infra
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class Builder(object):
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def __init__(self, config, builddir, logtofile):
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self.config = '\n'.join([line.lstrip() for line in
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config.splitlines()]) + '\n'
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self.builddir = builddir
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self.logfile = infra.open_log_file(builddir, "build", logtofile)
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def is_defconfig_valid(self, configfile, defconfig):
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"""Check if the .config is contains all lines present in the defconfig."""
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with open(configfile) as configf:
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configlines = configf.readlines()
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defconfiglines = defconfig.split("\n")
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# Check that all the defconfig lines are still present
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for defconfigline in defconfiglines:
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if defconfigline + "\n" not in configlines:
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self.logfile.write("WARN: defconfig can't be used\n")
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self.logfile.write(" Missing: %s\n" % defconfigline.strip())
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self.logfile.flush()
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return False
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return True
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def configure(self, make_extra_opts=[], make_extra_env={}):
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"""Configure the build.
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make_extra_opts: a list of arguments to be passed to the make
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command.
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e.g. make_extra_opts=["BR2_EXTERNAL=/path"]
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make_extra_env: a dict of variables to be appended (or replaced)
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in the environment that calls make.
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e.g. make_extra_env={"BR2_DL_DIR": "/path"}
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"""
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if not os.path.isdir(self.builddir):
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os.makedirs(self.builddir)
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config_file = os.path.join(self.builddir, ".config")
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with open(config_file, "w+") as cf:
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cf.write(self.config)
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# dump the defconfig to the logfile for easy debugging
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self.logfile.write("> start defconfig\n" + self.config +
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"> end defconfig\n")
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self.logfile.flush()
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env = {"PATH": os.environ["PATH"]}
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env.update(make_extra_env)
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cmd = ["make",
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"O={}".format(self.builddir)]
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cmd += make_extra_opts
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cmd += ["olddefconfig"]
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ret = subprocess.call(cmd, stdout=self.logfile, stderr=self.logfile,
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cwd=infra.basepath(), env=env)
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if ret != 0:
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raise SystemError("Cannot olddefconfig")
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if not self.is_defconfig_valid(config_file, self.config):
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raise SystemError("The defconfig is not valid")
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def build(self, make_extra_opts=[], make_extra_env={}):
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"""Perform the build.
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make_extra_opts: a list of arguments to be passed to the make
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command. It can include a make target.
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e.g. make_extra_opts=["foo-source"]
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make_extra_env: a dict of variables to be appended (or replaced)
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in the environment that calls make.
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e.g. make_extra_env={"BR2_DL_DIR": "/path"}
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"""
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env = {"PATH": os.environ["PATH"]}
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if "http_proxy" in os.environ:
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self.logfile.write("Using system proxy: " +
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os.environ["http_proxy"] + "\n")
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env['http_proxy'] = os.environ["http_proxy"]
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env['https_proxy'] = os.environ["http_proxy"]
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env.update(make_extra_env)
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cmd = ["make", "-C", self.builddir]
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cmd += make_extra_opts
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ret = subprocess.call(cmd, stdout=self.logfile, stderr=self.logfile,
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env=env)
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if ret != 0:
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raise SystemError("Build failed")
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open(self.stamp_path(), 'a').close()
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def stamp_path(self):
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return os.path.join(self.builddir, "build-done")
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def is_finished(self):
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return os.path.exists(self.stamp_path())
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def delete(self):
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if os.path.exists(self.builddir):
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shutil.rmtree(self.builddir)
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