2 # Copyright (c) 2016 Samsung Electronics Co., Ltd
4 # Licensed under the Flora License, Version 1.1 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://floralicense.org/license/
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
20 from lxml import etree
21 from tic.utils.error import TICError
22 from tic.utils.rpmmisc import meetRequireVersion, compare_ver
23 from tic.utils.rpmmisc import Dependency
24 from tic.config import configmgr
26 DEFAULT_PROFILE = 'EMPTY'
28 def get_installed_packages(recipe, repoinfo, pkg_group):
29 logger = logging.getLogger(__name__)
31 def _select_rpm_from_files(fileList, require):
32 if not fileList or not require:
36 # 2-1. Choose the default rpm or the selected rpm
37 for fname in fileList:
38 file_info = pkg_dict.get(fname)
39 if fname in pkg_set or selected[file_info['id']] >= 1:
41 # 2-2. Choose the rpm (it does not conflitcs)
42 for fname in fileList:
43 file_info = pkg_dict.get(fname)
44 if not _check_conflicts(file_info):
46 return pkg_dict.get(fileList[0])
48 def _select_rpm(capability, require, recommends=None):
50 # 1. Choose the rpm included in version from provides
51 if require.get('ver'):
52 for provide in capability:
53 ver_data = provide['data']
54 # If there is no capability version, use version of package
55 if not ver_data.get('ver'):
56 ver_data = pkg_dict.get(provide['name']).get('version')
57 if meetRequireVersion(require, ver_data):
58 provide_list.append(provide)
60 provide_list = capability
62 # error case (the rpm does not exist)
66 if len(provide_list) == 1:
67 return pkg_dict.get(provide_list[0].get('name'))
69 # 2 Select one of the rpms by priority
70 # 2-1. Choose the default rpm or the selected rpm
71 for pro in provide_list:
72 provide_info = pkg_dict.get(pro.get('name'))
73 if provide_info['name'] in pkg_set or selected[provide_info['id']] >= 1:
76 # 2-2. Choose the defualt profile
77 # TODO: should be supported
78 # if provide_info['profile'] == DEFAULT_PROFILE:
81 # 2.3. Choose recommends pkg (pkg-name or capability)
83 for pro in provide_list:
84 provide_info = pkg_dict.get(pro.get('name'))
85 for reco in recommends:
86 # 2-3 Case. select a pkg that is named
87 if reco['name'] == provide_info['name']:
89 # 2-3 Case. select a pkg that provides
90 for cap in provide_info.get('provides'):
91 if reco['name'] == cap['name']:
93 # 2-4. Select the latest version of rpm
95 for pro in provide_list:
96 if not _check_conflicts(pkg_dict.get(pro.get('name'))):
98 cap_info = pro.get('data')
99 ret = compare_ver(max_ver.get('data'), cap_info)
100 if ret == 0: # equals
101 # string compare (compare string lexicographically using ASCII value)
102 if max_ver.get('name') > pro.get('name'):
104 elif ret == -1: # greater than max_ver
109 # all of capability pkg are in conflict
111 return pkg_dict.get(provide_list[0]['name'])
113 return pkg_dict.get(max_ver.get('name'))
115 def _create_reference(pkg1, pkg2):
117 if pkg1.get('forward') and pkg2['name'] in pkg1.get('forward'):
120 if pkg1.get('forward'):
121 pkg1['forward'].append(pkg2['name'])
123 pkg1['forward'] = [pkg2['name']]
125 if pkg2.get('backward'):
126 pkg2['backward'].append(pkg1['name'])
128 pkg2['backward'] = [pkg1['name']]
130 def _make_scc(pkg_id):
136 scc_id[pkg['id']] = scc_num[0]
138 if pkg_id == pkg['id']:
141 # circular dependency
142 if len(scc_list) > 1:
147 pkg['group'] = group_num[0]
148 group_names.append(pkg['name'])
150 # { group_id = [ pkg_name_1, pkg_name_2 ], ... }
151 groups[group_num[0]] = group_names
153 def _check_conflicts(pkg_info):
154 # 1. Check whether node can be installed
155 if pkg_info.get('provides') is not None:
156 for pro in pkg_info['provides']:
157 if pro['name'] in conflicts:
158 for con in conflicts[pro['name']]:
159 if not con['data'].get('ver') or meetRequireVersion(con['data'], pro):
161 logger.info('Conflict %s and %s' % (pkg_info['name'], con['name']))
164 #2. If the conflict package defined by node is installed
165 if pkg_info.get('conflicts') is not None:
166 for con in pkg_info['conflicts']:
167 if con['name'] in provides:
168 for pro in provides[con['name']]:
169 pkg = pkg_dict[pro['name']]
170 if selected[pkg['id']] != 0:
171 if not con.get('ver') or meetRequireVersion(con, pkg['version']):
172 logger.info('Conflict %s and %s' % (pkg_info['name'], pkg['name']))
174 elif con['name'] in pkg_dict:
175 pkg = pkg_dict[con['name']]
176 if selected[pkg['id']] != 0:
177 if not con.get('ver') or meetRequireVersion(con, pkg['version']):
178 logger.info('Conflict %s and %s' % (pkg_info['name'], pkg['name']))
182 def _add_conflicts(pkg_info):
183 if pkg_info.get('conflicts'):
184 for con in pkg_info['conflicts']:
185 if not con['name'] in conflicts:
186 conflicts[con['name']] = []
187 conflicts[con['name']].append(dict(name=pkg_info['name'], data=con))
188 logger.info('%s add conflict package : %s' % (pkg_info['name'], con['name']))
190 def _analyze_dep(pkg_info):
194 pkg_id = pkg_info['id']
196 selected[pkg_id] = number[0]
197 min_num[pkg_id] = number[0]
198 stack.append(pkg_info)
200 dep_rpms = set([pkg_info['name']])
202 # check for conflicts
203 if _check_conflicts(pkg_info):
204 progress['status'] = False
208 # add rpms into conflicts table.
209 _add_conflicts(pkg_info)
211 # Installation dependency analysis of rpm
212 for dep_tag in [Dependency.REQUIRES, Dependency.RECOMMENDS]:
213 if pkg_info.get(dep_tag):
214 for req in pkg_info.get(dep_tag):
216 # Find dependency rpm based on capability/files
217 if req['name'] in provides:
218 # capability : [provide_rpm_1, provide_rpm_2, ... ]
219 # Select the rpm that meets the condition (version)
220 if dep_tag == Dependency.REQUIRES:
221 choose = _select_rpm(provides[req['name']], req, pkg_info.get('recommends'))
223 choose = _select_rpm(provides[req['name']], req)
224 elif req['name'] in files:
225 choose = _select_rpm_from_files(files[req['name']], req)
226 elif req['name'] in pkg_dict:
227 choose = pkg_dict.get(req['name'])
229 if dep_tag == Dependency.RECOMMENDS:
230 # A Recommends B: B is installed when A is installed and B has no conflicts.
231 if not choose or _check_conflicts(choose):
232 logger.info('%s recommended by %s is ignored for selection (Conflict)' % (req['name'], pkg_info['name']))
236 # add forward/backward reference
237 _create_reference(pkg_info, choose)
240 # choose['ref_cnt'] = {req['name']: 1}
242 if selected[choose['id']] == 0:
243 dep_set = _analyze_dep(choose)
244 if not progress['status']:
247 dep_rpms.update(dep_set)
248 min_num[pkg_id] = min(min_num[pkg_id], min_num[choose['id']])
249 elif scc_id[choose['id']] == 0:
250 # cross edge that can not be ignored
251 min_num[pkg_id] = min(min_num[pkg_id], min_num[choose['id']])
253 # the rpm does not exists
254 logger.info(configmgr.message['dependency_not_exist'] % (req['name'], pkg_info['name']))
255 progress['status'] = False
258 if not progress['status']:
260 if min_num[pkg_id] == selected[pkg_id]:
261 # scc(strong connected components)
266 def _check_circular_dep(node):
267 g_id = node.get('group')
268 g_pkg_list = groups[g_id]
272 for pkgname in g_pkg_list:
273 g_dict[pkgname] = None
275 for pkgname in g_pkg_list:
276 pkg = pkg_dict[pkgname]
277 # the node is selfchecked (the root node ignores selfchecked)
278 #if stack[0]['id'] != pkg['id'] and pkg['selfChecked']:
279 if selected_pkg['id'] != pkg['id'] and pkg['selfChecked']:
281 # check backward ref.
282 for bname in pkg.get('backward'):
283 # If node is Referenced by another node (Not a node in the group),
284 # unable to uncheck group nodes
285 if not bname in g_dict:
289 group_visited[g_id] = {}
290 # delete backward reference of group node
291 for pkgname in g_pkg_list:
292 pkg = pkg_dict[pkgname]
293 pkg['backward'] = None;
294 group_visited[g_id][pkg['name']] = -1
297 def _delete_conflictdata(node):
298 if node.get('conflicts'):
299 for con in node.get('conflicts'):
300 if con['name'] in conflicts:
301 con_list = conflicts[con['name']]
302 for i in range(len(con_list)):
303 if con_list[i]['name'] == node['name']:
307 def _remove_reference(parent, node):
308 if parent is not None:
309 # remove backward reference (parent)
310 if node.get('backward'):
311 for i in range(len(node['backward'])):
312 if node['backward'][i] == parent['name']:
313 del node['backward'][i]
315 # selfCheck node do not remove
316 if node.get('selfChecked'):
319 if node.get('backward'):
320 if node.get('group') is None or not _check_circular_dep(node):
323 # the selected node is uncheckable
324 if node.get('group') and group_visited[node['group']]:
325 group_visited[node['group']][node['name']] = 1
327 # if selected node has forward references
328 if node.get('forward'):
329 for fname in node.get('forward'):
330 fnode = pkg_dict.get(fname)
332 # If pkg has a circular dependency and is unchekcable,
333 # circular dep. pkgs can only be visited once
334 gvisite = group_visited.get(fnode.get('group'))
335 if gvisite and gvisite[fnode['name']] == 1:
337 _remove_reference(node, fnode)
338 node['forward'] = None
340 # delete conflict data from conflicts dict
341 _delete_conflictdata(node)
344 if not recipe or not repoinfo:
350 if recipe['Recipe'].get('Groups'):
351 group_set.update(recipe['Recipe'].get('Groups'))
352 if recipe['Recipe'].get('ExtraPackages'):
353 pkg_set.update(recipe['Recipe'].get('ExtraPackages'))
357 for repo in repoinfo:
358 if repo.get('comps'):
360 tree = etree.parse(repo.get('comps'))
361 root = tree.getroot()
362 except etree.XMLSyntaxError as e:
364 raise TICError(configmgr.message['xml_parse_error'] % ('group.xml', repo['baseurl']))
366 # Convert groups to packages
367 for elm in root.findall('group'):
368 group_name = elm.find('name').text
369 if group_name in group_set:
370 pkglist = elm.find('packagelist')
372 for pkgreq in pkglist.findall('packagereq'):
373 plist.append(pkgreq.text)
374 pkg_set.update(set(plist))
375 group_set.discard(group_name);
377 pkg_dict = pkg_group.get('pkg_dict')
378 provides = pkg_group.get('provides')
379 files = pkg_group.get('files')
380 groups = pkg_group.get('groups')
381 conflicts = pkg_group.get('conflicts')
384 number = [0] # for pkg count
385 scc_num = [0] # for scc count
386 group_num = [0] # for group count
387 scc_id = [0] * len(pkg_dict)
388 min_num = [0] * len(pkg_dict)
389 selected = [0] * len(pkg_dict)
391 install_rpm = set([])
392 progress = dict(status=True, message=None)
394 for pkg_name in pkg_set:
395 progress['status'] = True
396 selected_pkg = pkg_dict.get(pkg_name)
399 if provides.get(pkg_name):
400 pro = provides.get(pkg_name)[0]
401 selected_pkg = pkg_dict.get(pro['name'])
403 logger.info(configmgr.message['package_not_exist'] % pkg_name)
406 selected_pkg['selfChecked'] = True
407 if selected[selected_pkg['id']] == 0:
408 dep_set = _analyze_dep(selected_pkg)
409 if progress['status']:
410 install_rpm.update(dep_set)
412 # delete forward/backward reference
414 _remove_reference(None, selected_pkg)
415 return list(install_rpm)