/[gli]/branches/qs/src/GLIPortage.py
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Contents of /branches/qs/src/GLIPortage.py

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Revision 1182 - (show annotations) (download) (as text)
Fri Dec 23 22:32:57 2005 UTC (8 years, 6 months ago) by agaffney
Original Path: trunk/src/GLIPortage.py
File MIME type: text/x-python
File size: 10262 byte(s)
  move some of portage function from GLIAT
  src/GLIArchitectureTemplate.py:
  revamp install_packages() for new GLIPortage

1 """
2 # Copyright 1999-2005 Gentoo Foundation
3 # This source code is distributed under the terms of version 2 of the GNU
4 # General Public License as published by the Free Software Foundation, a copy
5 # of which can be found in the main directory of this project.
6 Gentoo Linux Installer
7
8 $Id: GLIPortage.py,v 1.2 2005/12/23 22:32:57 agaffney Exp $
9 """
10
11 import os
12 import re
13 import GLIUtility
14
15 class MissingPackagesError(Exception):
16 pass
17
18 class depgraph:
19
20 def __init__(self):
21 self.graph = {}
22
23 def add(self, node, parent=None):
24 if node not in self.graph:
25 self.graph[node] = [[], []]
26 if parent and parent not in self.graph[node][0]:
27 if parent not in self.graph:
28 self.graph[parent] = [[], []]
29 self.graph[node][0].append(parent)
30 self.graph[parent][1].append(node)
31
32 def remove(self, node):
33 for parent in self.graph[node][0]:
34 self.graph[parent][1].remove(node)
35 for child in self.graph[node][1]:
36 self.graph[child][0].remove(node)
37 return self.graph.pop(node)
38
39 def has_node(self, node):
40 return node in self.graph
41
42 def leaf_nodes(self):
43 return [node for node in self.graph if not self.graph[node][1]]
44
45 def node_count(self):
46 return len(self.graph)
47
48 def important_node(self):
49 important_node = None
50 importance = 0
51 for node in self.graph:
52 if len(self.graph[node][0]) > importance:
53 importance = len(self.graph[node][0])
54 important_node = node
55 return important_node
56
57 class GLIPortage(object):
58
59 def __init__(self, chroot_dir, logger, debug):
60 os.environ['ROOT'] = chroot_dir
61 import portage, portage_dep
62 self.vdb = portage.db["/"]["vartree"].dbapi
63 self.tree = portage.db[chroot_dir]["porttree"].dbapi
64 self._chroot_dir = chroot_dir
65 self._logger = logger
66 self._debug = debug
67
68 def resolve_deps(self, dep_list):
69 if dep_list and dep_list[0] == "||":
70 for dep in dep_list[1:]:
71 if isinstance(dep, list):
72 try:
73 atoms = resolve_deps(dep)
74 except MissingPackagesError:
75 continue
76 else:
77 atoms = [dep]
78 all_found = True
79 for atom in atoms:
80 if not atom.startswith("!") and not self.vdb.match(atom):
81 all_found = False
82 break
83 if all_found:
84 return atoms
85 raise MissingPackagesError(dep_list)
86 atoms = []
87 for dep in dep_list:
88 if isinstance(dep, list):
89 atoms.extend(resolve_deps(dep))
90 elif not dep.startswith("!"):
91 if not self.vdb.match(dep):
92 raise MissingPackagesError([dep])
93 atoms.append(dep)
94 return atoms
95
96 def calc_required_pkgs(self, atom, graph, parent=None):
97 pkg = portage.best(self.vdb.match(atom))
98 if not pkg:
99 raise MissingPackagesError([atom])
100 if pkg == parent:
101 return
102 already_processed = graph.has_node(pkg)
103 graph.add(pkg, parent)
104 if already_processed:
105 return
106 useflags = self.vdb.aux_get(pkg, ["USE"])[0].split()
107 rdep_raw = " ".join(self.vdb.aux_get(pkg, ["RDEPEND", "PDEPEND"]))
108 rdep_struct = portage_dep.use_reduce(portage_dep.paren_reduce(rdep_raw), uselist=useflags)
109 rdep_struct = portage.dep_virtual(portage_dep.dep_opconvert(rdep_struct), portage.settings)
110 rdep_atoms = portage.unique_array(resolve_deps(rdep_struct))
111 for atom in rdep_atoms:
112 calc_required_pkgs(atom, graph, pkg)
113
114 def prune_existing(self, graph):
115 db = portage.db[portage.root]["vartree"].dbapi
116 for atom in db.cp_all():
117 for pkg in db.match(atom):
118 if graph.has_node(pkg):
119 graph.remove(pkg)
120
121 def get_deps(self, pkgs, grp_install):
122 if not grp_install:
123 del(os.environ['ROOT'])
124 return GLIUtility.spawn("emerge -p " + pkgs + r" | grep -e '^\[[a-z]' | cut -d ']' -f2 | sed -e 's:^ ::' -e 's: .\+$::'", chroot=self._chroot_dir, return_output=True)[1].split("\n")
125 os.environ['ROOT'] = self._chroot_dir
126 else:
127 pkglist = []
128 graph = depgraph()
129 for pkg in pkgs.split():
130 if not self.vdb.match(pkg):
131 self._logger.log("get_deps(): " + pkg + " is not available via GRP...ignoring")
132 continue
133 self.calc_required_pkgs(pkg, graph)
134 while graph.node_count():
135 leaf_nodes = graph.leaf_nodes()
136 if not leaf_nodes:
137 node = graph.important_node()
138 pkglist.append(node)
139 graph.remove(node)
140 continue
141 pkglist.extend(leaf_nodes)
142 for node in leaf_nodes:
143 graph.remove(node)
144 return pkglist
145
146 def copy_pkg_to_chroot(self, package):
147 symlinks = { '/bin/': '/mnt/livecd/bin/', '/boot/': '/mnt/livecd/boot/', '/lib/': '/mnt/livecd/lib/',
148 '/opt/': '/mnt/livecd/opt/', '/sbin/': '/mnt/livecd/sbin/', '/usr/': '/mnt/livecd/usr/',
149 '/etc/gconf/': '/usr/livecd/gconf/' }
150
151 # Copy the vdb entry for the package from the LiveCD to the chroot
152 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): copying vdb entry for " + package)
153 if not GLIUtility.exitsuccess(GLIUtility.spawn("mkdir -p " + self._chroot_dir + "/var/db/pkg/" + package + " && cp -a /var/db/pkg/" + package + "/* " + self._chroot_dir + "/var/db/pkg/" + package)):
154 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not copy vdb entry for " + package)
155
156 # Create list of files for tar to work with from CONTENTS file in vdb entry
157 entries = GLIUtility.parse_vdb_contents("/var/db/pkg/" + package + "/CONTENTS")
158 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot: files for " + package + ": " + str(entries))
159 try:
160 tarfiles = open("/tmp/tarfilelist", "w")
161 for entry in entries:
162 parts = entry.split(" ")
163 # Hack for symlink crappiness
164 for symlink in symlinks:
165 if parts[0].startswith(symlink):
166 parts[0] = symlinks[symlink] + parts[0][len(symlink):]
167 tarfiles.write(parts[0] + "\n")
168 tarfiles.close()
169 except:
170 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not create filelist for " + package)
171
172 # Use tar to transfer files into IMAGE directory
173 tmpdir = "/var/tmp/portage"
174 image_dir = tmpdir + "/" + package.split("/")[1] + "/image"
175 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): running 'mkdir -p " + self._chroot_dir + image_dir + " && tar -c --files-from=/tmp/tarfilelist --no-recursion 2>/dev/null | tar -C " + self._chroot_dir + image_dir + " -x'")
176 if not GLIUtility.exitsuccess(GLIUtility.spawn("mkdir -p " + self._chroot_dir + image_dir + " && tar -c --files-from=/tmp/tarfilelist --no-recursion 2>/dev/null | tar -C " + self._chroot_dir + image_dir + " -x")):
177 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not execute tar for " + package)
178
179 # More symlink crappiness hacks
180 for symlink in symlinks:
181 if GLIUtility.is_file(self._chroot_dir + image_dir + symlinks[symlink]):
182 # parts[0] = symlinks[symlink] + parts[len(symlink):]
183 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): fixing /usr/livecd/gconf/ stuff in " + image_dir + " for " + package)
184 if not GLIUtility.exitsuccess(GLIUtility.spawn("mv " + self._chroot_dir + image_dir + symlinks[symlink] + " " + self._chroot_dir + image_dir + symlink)):
185 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not fix /usr/livecd/gconf/ stuff for " + package)
186
187 # Run pkg_setup
188 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): running pkg_setup for " + package)
189 if not GLIUtility.exitsuccess(GLIUtility.spawn("env ROOT=" + self._chroot_dir + " PORTAGE_TMPDIR=" + self._chroot_dir + tmpdir + " ebuild " + self._chroot_dir + "/var/db/pkg/" + package + "/*.ebuild setup")):
190 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not execute pkg_setup for " + package)
191
192 # Run qmerge
193 # if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): running qmerge for " + package)
194 # if not GLIUtility.exitsuccess(GLIUtility.spawn("env ROOT=" + self._chroot_dir + " PORTAGE_TMPDIR=" + self._chroot_dir + tmpdir + " ebuild " + self._chroot_dir + "/var/db/pkg/" + package + "/*.ebuild qmerge")):
195 # raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not execute qmerge for " + package)
196
197 # Run pkg_preinst
198 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): running preinst for " + package)
199 if not GLIUtility.exitsuccess(GLIUtility.spawn("env ROOT=" + self._chroot_dir + " PORTAGE_TMPDIR=" + self._chroot_dir + tmpdir + " ebuild " + self._chroot_dir + "/var/db/pkg/" + package + "/*.ebuild preinst")):
200 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not execute preinst for " + package)
201
202 # Copy files from image_dir to chroot
203 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): copying files from " + image_dir + " to / for " + package)
204 if not GLIUtility.exitsuccess(GLIUtility.spawn("cp -a " + self._chroot_dir + image_dir + "/* " + self._chroot_dir)):
205 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not copy files from " + image_dir + " to / for " + package)
206
207 # Run pkg_postinst
208 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): running postinst for " + package)
209 if not GLIUtility.exitsuccess(GLIUtility.spawn("env ROOT=" + self._chroot_dir + " PORTAGE_TMPDIR=" + self._chroot_dir + tmpdir + " ebuild " + "/var/db/pkg/" + package + "/*.ebuild postinst")):
210 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not execute postinst for " + package)
211
212 # Remove image_dir
213 if self._debug: self._logger.log("DEBUG: copy_pkg_to_chroot(): removing + " + image_dir + " for " + package)
214 if not GLIUtility.exitsuccess(GLIUtility.spawn("rm -rf " + self._chroot_dir + image_dir)):
215 raise GLIException("CopyPackageToChrootError", 'fatal', 'copy_pkg_to_chroot', "Could not remove + " + image_dir + " for " + package)
216
217 def add_pkg_to_world(self, package):
218 if package.find("/") == -1:
219 package = GLIUtility.spawn("portageq best_version / " + package, chroot=self._chroot_dir, return_output=True)[1].strip()
220 if not package: return False
221 expr = re.compile('^(.+?)(-\d.+)?$')
222 res = expr.match(package)
223 if res:
224 GLIUtility.spawn("echo " + res.group(1) + " >> " + self._chroot_dir + "/var/lib/portage/world")
225
226 def get_best_version_vdb(self, package):
227 return portage.best(vdb.match(package))
228
229 def get_best_version_tree(self, package):
230 return portage.best(tree.match(package))

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