updating some pacman stuff. need to finish objtypes.Repo and might need to tweak config writer.

aif/software/objtypes.py

@@ -0,0 +1,72 @@
+import logging
+import os
+import re
+##
+from lxml import etree
+
+
+_logger = logging.getLogger(__name__)
+
+
+class Mirror(object):
+    def __init__(self, mirror_xml, repo = None, arch = None):
+        self.xml = mirror_xml
+        _logger.debug('mirror_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
+        self.uri = self.xml.text
+        self.real_uri = None
+        self.aif_uri = None
+
+    def parse(self, chroot_base, repo, arch):
+        self.real_uri = self.uri.replace('$repo', repo).replace('$arch', arch)
+        if self.uri.startswith('file://'):
+            self.aif_uri = os.path.join(chroot_base, re.sub(r'^file:///?', ''))
+
+
+class Package(object):
+    def __init__(self, package_xml):
+        self.xml = package_xml
+        _logger.debug('package_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
+        self.name = self.xml.text
+        self.repo = self.xml.attrib.get('repo')
+        if self.repo:
+            self.qualified_name = '{0}/{1}'.format(self.repo, self.name)
+        else:
+            self.qualified_name = self.name
+
+
+class Repo(object):
+    def __init__(self, chroot_base, repo_xml, arch = 'x86_64'):
+        # TODO: support Usage? ("REPOSITORY SECTIONS", pacman.conf(5))
+        self.xml = repo_xml
+        _logger.debug('repo_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
+        # TODO: SigLevels?!
+        self.name = self.xml.attrib['name']
+        self.conflines = {}
+        self.mirrors = []
+        self.parsed_mirrors = []
+        _mirrors = self.xml.xpath('mirror|include')  # "Server" and "Include" respectively in pyalpm lingo.
+        if _mirrors:
+            for m in _mirrors:
+                k = m.tag.title()
+                if k == 'Mirror':
+                    k = 'Server'
+                if k not in self.conflines.keys():
+                    self.conflines[k] = []
+                self.conflines[k].append(m.text)
+                # TODO; better parsing here. handle in config.py?
+                # if m.tag == 'include':
+                #     # TODO: We only support one level of includes. Pacman supports unlimited nesting? of includes.
+                #     file_uri = os.path.join(chroot_base, re.sub(r'^/?', '', m.text))
+                #     if not os.path.isfile(file_uri):
+                #         _logger.error('Include file ({0}) does not exist: {1}'.format(m.text, file_uri))
+                #         raise FileNotFoundError('Include file does not exist')
+                #     with open(file_uri, 'r') as fh:
+                #         for line in fh.read().splitlines():
+        else:
+            # Default (mirrorlist)
+            self.conflines['Include'] = ['file:///etc/pacman.d/mirrorlist']
+        self.enabled = (True if self.xml.attrib.get('enabled', 'true') in ('1', 'true') else False)
+        self.siglevel = self.xml.attrib.get('sigLevel')
+        # self.real_uri = None
+        # if self.uri:
+        #     self.real_uri = self.uri.replace('$repo', self.name).replace('$arch', arch)