def install(self):
options = self.options
install_location = self.buildout['buildout']['eggs-directory']
if not os.path.exists(options['location']):
os.mkdir(options['location'])
# Only do expensive download/compilation when there's no existing egg.
path = [install_location]
req_string = self.options['egg'] # 'lxml' or 'lxml == 2.0.9'
version_part = self.buildout['buildout'].get('versions')
if version_part:
version_req = self.buildout[version_part].get('lxml')
if version_req:
# [versions] wins and is often the place where it is specified.
req_string = 'lxml == %s' % version_req
req = pkg_resources.Requirement.parse(req_string)
matching_dists = [
d for d in pkg_resources.Environment(path)['lxml'] if d in req
]
if matching_dists and not self.force:
# We have found existing lxml eggs that match our requirements.
# If we specified an exact version, we'll trust that the matched
# egg is good. We don't currently accept matches for not-pinned
# versions as that would mean lots of code duplication with
# easy_install (handling newest=t/f and so).
specs = req.specs
if len(specs) == 1 and specs[0][0] == '==':
self.logger.info(
"Using existing %s. Delete it if that one "
"isn't statically compiled.", matching_dists[0].location)
return ()
# build dependent libs if requested
if self.build_xml2:
self.build_libxml2()
else:
self.logger.warn("Using configured libxml2 at %s" %
self.xml2_location)
if self.build_xslt:
self.build_libxslt()
else:
self.logger.warn("Using configured libxslt at %s" %
self.xslt_location)
# get the config executables
self.get_configs(os.path.join(self.xml2_location, "bin"),
os.path.join(self.xslt_location, "bin"))
if self.static_build:
self.remove_dynamic_libs(self.xslt_location)
self.remove_dynamic_libs(self.xml2_location)
# build LXML
dest = options.get("location")
if not os.path.exists(dest):
os.mkdir(dest)
options["include-dirs"] = '\n'.join([
os.path.join(self.xml2_location, "include", "libxml2"),
os.path.join(self.xslt_location, "include")
])
options["library-dirs"] = '\n'.join([
os.path.join(self.xml2_location, "lib"),
os.path.join(self.xslt_location, "lib")
])
options["rpath"] = '\n'.join([
os.path.join(self.xml2_location, "lib"),
os.path.join(self.xslt_location, "lib")
])
if "darwin" in sys.platform:
self.logger.warn(
"Adding ``iconv`` to libs due to a lxml setup bug.")
options["libraries"] = "iconv"
self.lxml_custom = Custom(self.buildout, self.name, self.options)
self.lxml_custom.environment = self.lxml_build_env()
self.lxml_custom.options["_d"] = install_location
self.logger.info("Building lxml ...")
self.lxml_dest = self.lxml_custom.install()
return ()
