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Diffstat (limited to 'libbe/command/import_xml.py')
| -rw-r--r-- | libbe/command/import_xml.py | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/libbe/command/import_xml.py b/libbe/command/import_xml.py new file mode 100644 index 0000000..be22c82 --- /dev/null +++ b/libbe/command/import_xml.py @@ -0,0 +1,443 @@ +# Copyright (C) 2009 W. Trevor King <wking@drexel.edu> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import copy +import os +import sys +try: # import core module, Python >= 2.5 + from xml.etree import ElementTree +except ImportError: # look for non-core module + from elementtree import ElementTree + +import libbe +import libbe.bug +import libbe.command +import libbe.command.util +import libbe.comment +import libbe.util.encoding +import libbe.util.utility + +if libbe.TESTING == True: + import doctest + import StringIO + import unittest + + import libbe.bugdir + +class Import_XML (libbe.command.Command): + """Import comments and bugs from XML + + >>> import time + >>> import StringIO + >>> import libbe.bugdir + >>> bd = libbe.bugdir.SimpleBugDir(memory=False) + >>> io = libbe.command.StringInputOutput() + >>> io.stdout = sys.stdout + >>> ui = libbe.command.UserInterface(io=io) + >>> ui.storage_callbacks.set_storage(bd.storage) + >>> cmd = Import_XML(ui=ui) + + >>> ui.io.set_stdin('<be-xml><comment><uuid>c</uuid><body>This is a comment about a</body></comment></be-xml>') + >>> ret = ui.run(cmd, {'comment-root':'/a'}, ['-']) + >>> bd.flush_reload() + >>> bug = bd.bug_from_uuid('a') + >>> bug.load_comments(load_full=False) + >>> comment = bug.comment_root[0] + >>> print comment.body + This is a comment about a + <BLANKLINE> + >>> comment.time <= int(time.time()) + True + >>> comment.in_reply_to is None + True + >>> ui.cleanup() + >>> bd.cleanup() + """ + name = 'import-xml' + + def __init__(self, *args, **kwargs): + libbe.command.Command.__init__(self, *args, **kwargs) + self.options.extend([ + libbe.command.Option(name='ignore-missing-references', short_name='i', + help="If any comment's <in-reply-to> refers to a non-existent comment, ignore it (instead of raising an exception)."), + libbe.command.Option(name='add-only', short_name='a', + help='If any bug or comment listed in the XML file already exists in the bug repository, do not alter the repository version.'), + libbe.command.Option(name='comment-root', short_name='c', + help='Supply a bug or comment ID as the root of any <comment> elements that are direct children of the <be-xml> element. If any such <comment> elements exist, you are required to set this option.', + arg=libbe.command.Argument( + name='comment-root', metavar='ID', + completion_callback=libbe.command.util.complete_bug_comment_id)), + ]) + self.args.extend([ + libbe.command.Argument( + name='xml-file', metavar='XML-FILE'), + ]) + + def _run(self, **params): + bugdir = self._get_bugdir() + writeable = bugdir.storage.writeable + bugdir.storage.writeable = False + if params['comment-root'] != None: + croot_bug,croot_comment = \ + libbe.command.util.bug_comment_from_user_id( + bugdir, params['comment-root']) + croot_bug.load_comments(load_full=True) + if croot_comment.uuid == libbe.comment.INVALID_UUID: + croot_comment = croot_bug.comment_root + else: + croot_comment = croot_bug.comment_from_uuid(croot_comment.uuid) + new_croot_bug = libbe.bug.Bug(bugdir=bugdir, uuid=croot_bug.uuid) + new_croot_bug.explicit_attrs = [] + new_croot_bug.comment_root = copy.deepcopy(croot_bug.comment_root) + if croot_comment.uuid == libbe.comment.INVALID_UUID: + new_croot_comment = new_croot_bug.comment_root + else: + new_croot_comment = \ + new_croot_bug.comment_from_uuid(croot_comment.uuid) + for new in new_croot_bug.comments(): + new.explicit_attrs = [] + else: + croot_bug,croot_comment = (None, None) + + if params['xml-file'] == '-': + xml = self.stdin.read().encode(self.stdin.encoding) + else: + self._check_restricted_access(storage, params['xml-file']) + xml = libbe.util.encoding.get_file_contents( + params['xml-file']) + + # parse the xml + root_bugs = [] + root_comments = [] + version = {} + be_xml = ElementTree.XML(xml) + if be_xml.tag != 'be-xml': + raise libbe.util.utility.InvalidXML( + 'import-xml', be_xml, 'root element must be <be-xml>') + for child in be_xml.getchildren(): + if child.tag == 'bug': + new = libbe.bug.Bug(bugdir=bugdir) + new.from_xml(child) + root_bugs.append(new) + elif child.tag == 'comment': + new = libbe.comment.Comment(croot_bug) + new.from_xml(child) + root_comments.append(new) + elif child.tag == 'version': + for gchild in child.getchildren(): + if child.tag in ['tag', 'nick', 'revision', 'revision-id']: + text = xml.sax.saxutils.unescape(child.text) + text = text.decode('unicode_escape').strip() + version[child.tag] = text + else: + print >> sys.stderr, 'ignoring unknown tag %s in %s' \ + % (gchild.tag, child.tag) + else: + print >> sys.stderr, 'ignoring unknown tag %s in %s' \ + % (child.tag, comment_list.tag) + + # merge the new root_comments + if params['add-only'] == True: + accept_changes = False + accept_extra_strings = False + else: + accept_changes = True + accept_extra_strings = True + accept_comments = True + if len(root_comments) > 0: + if croot_bug == None: + raise UserError( + '--comment-root option is required for your root comments:\n%s' + % '\n\n'.join([c.string() for c in root_comments])) + try: + # link new comments + new_croot_bug.add_comments(root_comments, + default_parent=new_croot_comment, + ignore_missing_references= \ + params['ignore-missing-references']) + except libbe.comment.MissingReference, e: + raise libbe.command.UserError(e) + croot_bug.merge(new_croot_bug, accept_changes=accept_changes, + accept_extra_strings=accept_extra_strings, + accept_comments=accept_comments) + + # merge the new croot_bugs + merged_bugs = [] + old_bugs = [] + for new in root_bugs: + try: + old = bugdir.bug_from_uuid(new.alt_id) + except KeyError: + old = None + if old == None: + bd.append(new) + else: + old.load_comments(load_full=True) + old.merge(new, accept_changes=accept_changes, + accept_extra_strings=accept_extra_strings, + accept_comments=accept_comments) + merged_bugs.append(new) + old_bugs.append(old) + + # protect against programmer error causing data loss: + if croot_bug != None: + comms = [c.uuid for c in croot_comment.traverse()] + for new in root_comments: + assert new.uuid in comms, \ + "comment %s wasn't added to %s" % (new.uuid, croot_comment.uuid) + for new in root_bugs: + if not new in merged_bugs: + assert bugdir.has_bug(new.uuid), \ + "bug %s wasn't added" % (new.uuid) + + # save new information + bugdir.storage.writeable = writeable + if croot_bug != None: + croot_bug.save() + for new in root_bugs: + if not new in merged_bugs: + new.save() + for old in old_bugs: + old.save() + + def _long_help(self): + return """ +Import comments and bugs from XMLFILE. If XMLFILE is '-', the file is +read from stdin. + +This command provides a fallback mechanism for passing bugs between +repositories, in case the repositories VCSs are incompatible. If the +VCSs are compatible, it's better to use their builtin merge/push/pull +to share this information, as that will preserve a more detailed +history. + +The XML file should be formatted similarly to + <be-xml> + <version> + <tag>1.0.0</tag> + <branch-nick>be</branch-nick> + <revno>446</revno> + <revision-id>a@b.com-20091119214553-iqyw2cpqluww3zna</revision-id> + <version> + <bug> + ... + <comment>...</comment> + <comment>...</comment> + </bug> + <bug>...</bug> + <comment>...</comment> + <comment>...</comment> + </be-xml> +where the ellipses mark output commpatible with Bug.xml() and +Comment.xml(). Take a look at the output of `be show --xml` for some +explicit examples. Unrecognized tags are ignored. Missing tags are +left at the default value. The version tag is not required, but is +strongly recommended. + +The bug and comment UUIDs are always auto-generated, so if you set a +<uuid> field, but no <alt-id> field, your <uuid> will be used as the +comment's <alt-id>. An exception is raised if <alt-id> conflicts with +an existing comment. Bugs do not have a permantent alt-id, so they +the <uuid>s you specify are not saved. The <uuid>s _are_ used to +match agains prexisting bug and comment uuids, and comment alt-ids, +and fields explicitly given in the XML file will replace old versions +unless the --add-only flag. + +*.extra_strings recieves special treatment, and if --add-only is not +set, the resulting list concatenates both source lists and removes +repeats. + +Here's an example of import activity: + Repository + bug (uuid=B, creator=John, status=open) + estr (don't forget your towel) + estr (helps with space travel) + com (uuid=C1, author=Jane, body=Hello) + com (uuid=C2, author=Jess, body=World) + XML + bug (uuid=B, status=fixed) + estr (don't forget your towel) + estr (watch out for flying dolphins) + com (uuid=C1, body=So long) + com (uuid=C3, author=Jed, body=And thanks) + Result + bug (uuid=B, creator=John, status=fixed) + estr (don't forget your towel) + estr (helps with space travel) + estr (watch out for flying dolphins) + com (uuid=C1, author=Jane, body=So long) + com (uuid=C2, author=Jess, body=World) + com (uuid=C4, alt-id=C3, author=Jed, body=And thanks) + Result, with --add-only + bug (uuid=B, creator=John, status=open) + estr (don't forget your towel) + estr (helps with space travel) + com (uuid=C1, author=Jane, body=Hello) + com (uuid=C2, author=Jess, body=World) + com (uuid=C4, alt-id=C3, author=Jed, body=And thanks) + +Examples: + +Import comments (e.g. emails from an mbox) and append to bug XYZ + $ be-mbox-to-xml mail.mbox | be import-xml --c XYZ - +Or you can append those emails underneath the prexisting comment XYZ-3 + $ be-mbox-to-xml mail.mbox | be import-xml --c XYZ-3 - + +User creates a new bug + user$ be new "The demuxulizer is broken" + Created bug with ID 48f + user$ be comment 48f + <Describe bug> + ... +User exports bug as xml and emails it to the developers + user$ be show --xml 48f > 48f.xml + user$ cat 48f.xml | mail -s "Demuxulizer bug xml" devs@b.com +or equivalently (with a slightly fancier be-handle-mail compatible +email): + user$ be email-bugs 48f +Devs recieve email, and save it's contents as demux-bug.xml + dev$ cat demux-bug.xml | be import-xml - +""" + + +Import_xml = Import_XML # alias for libbe.command.base.get_command_class() + +if libbe.TESTING == True: + class LonghelpTestCase (unittest.TestCase): + """ + Test import scenarios given in longhelp. + """ + def setUp(self): + self.bugdir = libbe.bugdir.SimpleBugDir(memory=False) + io = libbe.command.StringInputOutput() + self.ui = libbe.command.UserInterface(io=io) + self.ui.storage_callbacks.set_storage(self.bugdir.storage) + self.cmd = Import_XML(ui=self.ui) + self.cmd._storage = self.bugdir.storage + self.cmd._setup_io = lambda i_enc,o_enc : None + bugA = self.bugdir.bug_from_uuid('a') + self.bugdir.remove_bug(bugA) + self.bugdir.storage.writeable = False + bugB = self.bugdir.bug_from_uuid('b') + bugB.creator = 'John' + bugB.status = 'open' + bugB.extra_strings += ["don't forget your towel"] + bugB.extra_strings += ['helps with space travel'] + comm1 = bugB.comment_root.new_reply(body='Hello\n') + comm1.uuid = 'c1' + comm1.author = 'Jane' + comm2 = bugB.comment_root.new_reply(body='World\n') + comm2.uuid = 'c2' + comm2.author = 'Jess' + self.bugdir.storage.writeable = True + bugB.save() + self.xml = """ + <be-xml> + <bug> + <uuid>b</uuid> + <status>fixed</status> + <summary>a test bug</summary> + <extra-string>don't forget your towel</extra-string> + <extra-string>watch out for flying dolphins</extra-string> + <comment> + <uuid>c1</uuid> + <body>So long</body> + </comment> + <comment> + <uuid>c3</uuid> + <author>Jed</author> + <body>And thanks</body> + </comment> + </bug> + </be-xml> + """ + def tearDown(self): + self.bugdir.cleanup() + self.ui.cleanup() + def _execute(self, params={}, args=[]): + self.ui.io.set_stdin(self.xml) + self.ui.run(self.cmd, params, args) + self.bugdir.flush_reload() + def testCleanBugdir(self): + uuids = list(self.bugdir.uuids()) + self.failUnless(uuids == ['b'], uuids) + def testNotAddOnly(self): + self._execute({}, ['-']) + uuids = list(self.bugdir.uuids()) + self.failUnless(uuids == ['b'], uuids) + bugB = self.bugdir.bug_from_uuid('b') + self.failUnless(bugB.uuid == 'b', bugB.uuid) + self.failUnless(bugB.creator == 'John', bugB.creator) + self.failUnless(bugB.status == 'fixed', bugB.status) + estrs = ["don't forget your towel", + 'helps with space travel', + 'watch out for flying dolphins'] + self.failUnless(bugB.extra_strings == estrs, bugB.extra_strings) + comments = list(bugB.comments()) + self.failUnless(len(comments) == 3, + ['%s (%s, %s)' % (c.uuid, c.alt_id, c.body) + for c in comments]) + c1 = bugB.comment_from_uuid('c1') + comments.remove(c1) + self.failUnless(c1.uuid == 'c1', c1.uuid) + self.failUnless(c1.alt_id == None, c1.alt_id) + self.failUnless(c1.author == 'Jane', c1.author) + self.failUnless(c1.body == 'So long\n', c1.body) + c2 = bugB.comment_from_uuid('c2') + comments.remove(c2) + self.failUnless(c2.uuid == 'c2', c2.uuid) + self.failUnless(c2.alt_id == None, c2.alt_id) + self.failUnless(c2.author == 'Jess', c2.author) + self.failUnless(c2.body == 'World\n', c2.body) + c4 = comments[0] + self.failUnless(len(c4.uuid) == 36, c4.uuid) + self.failUnless(c4.alt_id == 'c3', c4.alt_id) + self.failUnless(c4.author == 'Jed', c4.author) + self.failUnless(c4.body == 'And thanks\n', c4.body) + def testAddOnly(self): + self._execute({'add-only':True}, ['-']) + uuids = list(self.bugdir.uuids()) + self.failUnless(uuids == ['b'], uuids) + bugB = self.bugdir.bug_from_uuid('b') + self.failUnless(bugB.uuid == 'b', bugB.uuid) + self.failUnless(bugB.creator == 'John', bugB.creator) + self.failUnless(bugB.status == 'open', bugB.status) + estrs = ["don't forget your towel", + 'helps with space travel'] + self.failUnless(bugB.extra_strings == estrs, bugB.extra_strings) + comments = list(bugB.comments()) + self.failUnless(len(comments) == 3, + ['%s (%s)' % (c.uuid, c.alt_id) for c in comments]) + c1 = bugB.comment_from_uuid('c1') + comments.remove(c1) + self.failUnless(c1.uuid == 'c1', c1.uuid) + self.failUnless(c1.alt_id == None, c1.alt_id) + self.failUnless(c1.author == 'Jane', c1.author) + self.failUnless(c1.body == 'Hello\n', c1.body) + c2 = bugB.comment_from_uuid('c2') + comments.remove(c2) + self.failUnless(c2.uuid == 'c2', c2.uuid) + self.failUnless(c2.alt_id == None, c2.alt_id) + self.failUnless(c2.author == 'Jess', c2.author) + self.failUnless(c2.body == 'World\n', c2.body) + c4 = comments[0] + self.failUnless(len(c4.uuid) == 36, c4.uuid) + self.failUnless(c4.alt_id == 'c3', c4.alt_id) + self.failUnless(c4.author == 'Jed', c4.author) + self.failUnless(c4.body == 'And thanks\n', c4.body) + + unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) + suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()]) |