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import os
import logging
import urlparse
from nbblib.package import *
from nbblib.plugins import *
from nbblib.progutils import *
class AbstractConfig(object):
"""Return static config until we implement real config reading"""
def __init__(self, srcdir, nick):
super(AbstractConfig, self).__init__()
self._srcdir = srcdir
self._nick = nick
def get_srcdir(self):
return os.path.join(self._srcdir)
srcdir = property(get_srcdir)
def get_builddir(self):
return os.path.join(self._srcdir, "_build", self._nick)
builddir = property(get_builddir)
def get_installdir(self):
return os.path.join(self._srcdir, "_install", self._nick)
installdir = property(get_installdir)
########################################################################
# VCS Source Tree plugin system
########################################################################
class NotAVCSourceTree(Exception):
pass
class AmbigousVCSource(Exception):
def __init__(self, srcdir, matches):
super(AmbigousVCSource, self).__init__()
self.srcdir = srcdir
self.matches = matches
def __str__(self):
fmt = " %-9s %-15s %s"
def strmatch(m):
return fmt % (m.name, m.branch_name(), m.tree_root())
alist = ([fmt % ('VCS Type', 'Branch Name', 'Source tree root')] +
[fmt % (m.name, m.branch_name(), m.tree_root()) for m in self.matches])
return ("More than one source tree VCS type detected for '%s':\n#%s"
% (self.srcdir, '\n '.join(alist)))
class VCSourceTree(object):
"""
Mount point for plugins which refer to actions that can be performed.
Plugins implementing this reference should provide the following
interface:
name attribute
The text to be displayed, describing the version control system
__init__ function
Must raise NotAVCSourceTree() if it is not a VCS source tree
"""
__metaclass__ = GenericPluginMeta
def __init__(self, context):
super(VCSourceTree, self).__init__()
self.context = context
@classmethod
def detect(cls, srcdir, context):
"""Detect VCS tree type and return object representing it"""
if len(cls.plugins) < 1:
raise NoPluginsRegistered(cls)
#logging.debug("CLASS %s", cls)
matches = PluginDict()
for key, klass in cls.plugins.iteritems():
try:
t = klass(srcdir, context)
if t.tree_root() == srcdir:
#logging.debug("KLASS %s", klass)
matches[key] = t
except NotAVCSourceTree, e:
pass
if len(matches) > 1:
raise AmbigousVCSource(srcdir, matches.values())
elif len(matches) < 1:
raise NotAVCSourceTree(srcdir)
return matches[matches.keys()[0]]
def get_config(self):
"""Get configuration object which determines builddir etc"""
return AbstractConfig(self.tree_root(), self.branch_name())
config = property(get_config)
def tree_root(self):
"""Get absolute path to source tree root"""
raise NotImplementedError()
def branch_name(self):
"""Return name identifying the branch"""
raise NotImplementedError()
def __str__(self):
return repr(self)
def __repr__(self):
return "<%s(%s, %s)>" % (self.__class__.__name__,
repr(self.tree_root()),
repr(self.branch_name()))
########################################################################
# VCS Source Tree plugins
########################################################################
class GitSourceTree(VCSourceTree):
name = 'git'
def __init__(self, srcdir, context):
super(GitSourceTree, self).__init__(context)
os.chdir(srcdir)
if "true" != prog_stdout(["git", "rev-parse",
"--is-inside-work-tree"]):
raise NotAVCSourceTree()
reldir = prog_stdout(["git", "rev-parse", "--show-cdup"])
if reldir:
os.chdir(reldir)
self.__tree_root = os.getcwd()
def get_config(self):
return GitConfig(self.tree_root(), self.branch_name())
config = property(get_config)
def tree_root(self):
return self.__tree_root
def branch_name(self):
bname = prog_stdout(["git", "symbolic-ref", "HEAD"])
refs,heads,branch = bname.split('/')
assert(refs=='refs' and heads=='heads')
return branch
class GitConfig(AbstractConfig):
"""git config interface"""
def __init__(self, *args, **kwargs):
super(GitConfig, self).__init__(*args, **kwargs)
def _itemname(self, item): return '.'.join((GIT_CONFIG_PREFIX, item, ))
def _myreldir(self, rdir):
return os.path.join(self._srcdir, rdir, self._nick)
def get_builddir(self):
ret, stdout, stderr = prog_retstd(['git', 'config', self._itemname('builddir')])
assert(stderr == "")
if ret == 0 and stdout:
return self._myreldir(stdout)
else:
return super(GitConfig, self).get_builddir()
def set_builddir(self, value):
ret, stdout, stderr = prog_retstd(['git', 'config', self._itemname('builddir'), value])
assert(ret == 0 and stdout == "" and stderr == "")
builddir = property(get_builddir, set_builddir)
def get_installdir(self):
ret, stdout, stderr = prog_retstd(['git', 'config', self._itemname('installdir')])
assert(stderr == "")
if ret == 0 and stdout:
return self._myreldir(stdout)
else:
return super(GitConfig, self).get_installdir()
def set_installdir(self, value):
ret, stdout, stderr = prog_retstd(['git', 'config', self._itemname('installdir'), value])
assert(ret == 0 and stdout == "" and stderr == "")
installdir = property(get_installdir, set_installdir)
class BzrSourceTree(VCSourceTree):
name = 'bzr'
def __init__(self, srcdir, context):
super(BzrSourceTree, self).__init__(context)
try:
import bzrlib.workingtree
wt,b = bzrlib.workingtree.WorkingTree.open_containing(srcdir)
except bzrlib.errors.NotBranchError:
raise NotAVCSourceTree()
except ImportError:
raise NotAVCSourceTree()
self.wt = wt
#print "wt:", wt
#print "wt:", dir(wt)
#print "wt.branch:", wt.branch
#print "wt.branch:", dir(wt.branch)
#print "wt.branch.nick:", wt.branch.nick
#print "wt.branch.abspath:", wt.branch.abspath
#print "wt.branch.base:", wt.branch.base
#print "wt.branch.basis_tree:", wt.branch.basis_tree()
def tree_root(self):
proto,host,path,some,thing = urlparse.urlsplit(self.wt.branch.base)
assert(proto == "file" and host == "")
assert(some == "" and thing == "")
return os.path.abspath(path)
def branch_name(self):
return self.wt.branch.nick
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