52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
import os
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from charmhelpers.fetch import (
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BaseFetchHandler,
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UnhandledSource
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)
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from charmhelpers.core.host import mkdir
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import six
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if six.PY3:
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raise ImportError('GitPython does not support Python 3')
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try:
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from git import Repo
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except ImportError:
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from charmhelpers.fetch import apt_install
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apt_install("python-git")
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from git import Repo
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class GitUrlFetchHandler(BaseFetchHandler):
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"""Handler for git branches via generic and github URLs"""
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def can_handle(self, source):
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url_parts = self.parse_url(source)
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# TODO (mattyw) no support for ssh git@ yet
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if url_parts.scheme not in ('http', 'https', 'git'):
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return False
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else:
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return True
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def clone(self, source, dest, branch):
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if not self.can_handle(source):
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raise UnhandledSource("Cannot handle {}".format(source))
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repo = Repo.clone_from(source, dest)
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repo.git.checkout(branch)
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def install(self, source, branch="master", dest=None):
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url_parts = self.parse_url(source)
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branch_name = url_parts.path.strip("/").split("/")[-1]
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if dest:
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dest_dir = os.path.join(dest, branch_name)
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else:
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dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched",
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branch_name)
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if not os.path.exists(dest_dir):
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mkdir(dest_dir, perms=0o755)
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try:
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self.clone(source, dest_dir, branch)
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except OSError as e:
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raise UnhandledSource(e.strerror)
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return dest_dir
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