| import os |
| import re |
| import shutil |
| import logging |
| from binascii import b2a_hex |
| from datetime import datetime |
| from cStringIO import StringIO |
| from ConfigParser import ConfigParser |
| |
| import tg |
| from pylons import app_globals as g |
| os.environ['HGRCPATH'] = '' # disable loading .hgrc |
| from mercurial import ui, hg |
| from pymongo.errors import DuplicateKeyError |
| |
| from ming.base import Object |
| from ming.orm import Mapper, session |
| from ming.utils import LazyProperty |
| |
| from allura import model as M |
| from allura.lib import helpers as h |
| from allura.model.repository import topological_sort, GitLikeTree |
| |
| log = logging.getLogger(__name__) |
| |
| class Repository(M.Repository): |
| tool_name='Hg' |
| repo_id='hg' |
| type_s='Hg Repository' |
| class __mongometa__: |
| name='hg-repository' |
| |
| @LazyProperty |
| def _impl(self): |
| return HgImplementation(self) |
| |
| def merge_command(self, merge_request): |
| '''Return the command to merge a given commit into a given target branch''' |
| return 'hg checkout %s\nhg pull -r %s %s' % ( |
| merge_request.target_branch, |
| merge_request.downstream.commit_id, |
| merge_request.downstream_repo_url, |
| ) |
| |
| def count(self, branch='default'): |
| return super(Repository, self).count(branch) |
| |
| def log(self, branch='default', offset=0, limit=10): |
| return super(Repository, self).log(branch, offset, limit) |
| |
| class HgUI(ui.ui): |
| '''Hg UI subclass that suppresses reporting of untrusted hgrc files.''' |
| def __init__(self, *args, **kwargs): |
| super(HgUI, self).__init__(*args, **kwargs) |
| self._reportuntrusted = False |
| |
| class HgImplementation(M.RepositoryImplementation): |
| re_hg_user = re.compile('(.*) <(.*)>') |
| |
| def __init__(self, repo): |
| self._repo = repo |
| |
| @LazyProperty |
| def _hg(self): |
| return hg.repository(HgUI(), self._repo.full_fs_path) |
| |
| def init(self): |
| fullname = self._setup_paths() |
| log.info('hg init %s', fullname) |
| if os.path.exists(fullname): |
| shutil.rmtree(fullname) |
| repo = hg.repository( |
| ui.ui(), self._repo.full_fs_path, create=True) |
| self.__dict__['_hg'] = repo |
| self._setup_special_files() |
| self._repo.status = 'ready' |
| |
| def clone_from(self, source_url): |
| '''Initialize a repo as a clone of another''' |
| self._repo.status = 'cloning' |
| session(self._repo).flush(self._repo) |
| log.info('Initialize %r as a clone of %s', |
| self._repo, source_url) |
| try: |
| fullname = self._setup_paths(create_repo_dir=False) |
| if os.path.exists(fullname): |
| shutil.rmtree(fullname) |
| # !$ hg doesn't like unicode as urls |
| src, repo = hg.clone( |
| ui.ui(), |
| source_url.encode('utf-8'), |
| self._repo.full_fs_path.encode('utf-8'), |
| update=False) |
| self.__dict__['_hg'] = repo |
| self._setup_special_files(source_url) |
| except: |
| self._repo.status = 'ready' |
| session(self._repo).flush(self._repo) |
| raise |
| log.info('... %r cloned', self._repo) |
| g.post_event('repo_cloned', source_url) |
| self._repo.refresh(notify=False) |
| |
| def commit(self, rev): |
| '''Return a Commit object. rev can be _id or a branch/tag name''' |
| # See if the rev is a named ref that we have cached, and use the sha1 |
| # from the cache. This ensures that we don't return a sha1 that we |
| # don't have indexed into mongo yet. |
| for ref in self._repo.heads + self._repo.branches + self._repo.repo_tags: |
| if ref.name == rev: |
| rev = ref.object_id |
| break |
| result = M.repo.Commit.query.get(_id=rev) |
| if result is None: |
| try: |
| impl = self._hg[str(rev)] |
| result = M.repo.Commit.query.get(_id=impl.hex()) |
| except Exception, e: |
| log.exception(e) |
| if result is None: return None |
| result.set_context(self._repo) |
| return result |
| |
| def real_parents(self, ci): |
| """Return all parents of a commit, excluding the 'null revision' (a |
| fake revision added as the parent of the root commit by the Hg api). |
| """ |
| return [p for p in ci.parents() if p] |
| |
| def all_commit_ids(self): |
| """Return a list of commit ids, starting with the head(s) and ending |
| with the root (first commit) of the tree. |
| """ |
| graph = {} |
| to_visit = [ self._hg[hd] for hd in self._hg.heads() ] |
| while to_visit: |
| obj = to_visit.pop() |
| if obj.hex() in graph: continue |
| parents = self.real_parents(obj) |
| graph[obj.hex()] = set( |
| p.hex() for p in parents |
| if p.hex() != obj.hex()) |
| to_visit += parents |
| return reversed([ ci for ci in topological_sort(graph) ]) |
| |
| def new_commits(self, all_commits=False): |
| graph = {} |
| to_visit = [ self._hg[hd] for hd in self._hg.heads() ] |
| while to_visit: |
| obj = to_visit.pop() |
| if obj.hex() in graph: continue |
| if not all_commits: |
| # Look up the object |
| if M.repo.Commit.query.find(dict(_id=obj.hex())).count(): |
| graph[obj.hex()] = set() # mark as parentless |
| continue |
| parents = self.real_parents(obj) |
| graph[obj.hex()] = set( |
| p.hex() for p in parents |
| if p.hex() != obj.hex()) |
| to_visit += parents |
| return list(topological_sort(graph)) |
| |
| def refresh_heads(self): |
| self._repo.heads = [ |
| Object(name=None, object_id=self._hg[head].hex()) |
| for head in self._hg.heads()] |
| |
| self._repo.branches = [] |
| for name, tag in self._hg.branchtags().iteritems(): |
| if ("close" not in self._hg.changelog.read(tag)[5]): |
| self._repo.branches.append( |
| Object(name=name, object_id=self._hg[tag].hex())) |
| |
| self._repo.repo_tags = [ |
| Object(name=name, object_id=self._hg[tag].hex()) |
| for name, tag in self._hg.tags().iteritems()] |
| session(self._repo).flush() |
| |
| def refresh_commit_info(self, oid, seen, lazy=True): |
| from allura.model.repo import CommitDoc |
| ci_doc = CommitDoc.m.get(_id=oid) |
| if ci_doc and lazy: return False |
| obj = self._hg[oid] |
| # Save commit metadata |
| mo = self.re_hg_user.match(obj.user()) |
| if mo: |
| user_name, user_email = mo.groups() |
| else: |
| user_name = user_email = obj.user() |
| user = Object( |
| name=h.really_unicode(user_name), |
| email=h.really_unicode(user_email), |
| date=datetime.utcfromtimestamp(obj.date()[0])) |
| fake_tree = self._tree_from_changectx(obj) |
| args = dict( |
| tree_id=fake_tree.hex(), |
| committed=user, |
| authored=user, |
| message=h.really_unicode(obj.description() or ''), |
| child_ids=[], |
| parent_ids=[ p.hex() for p in self.real_parents(obj) |
| if p.hex() != obj.hex() ]) |
| if ci_doc: |
| ci_doc.update(args) |
| ci_doc.m.save() |
| else: |
| ci_doc = CommitDoc(dict(args, _id=oid)) |
| try: |
| ci_doc.m.insert(safe=True) |
| except DuplicateKeyError: |
| if lazy: return False |
| self.refresh_tree_info(fake_tree, seen, lazy) |
| return True |
| |
| def refresh_tree_info(self, tree, seen, lazy=True): |
| from allura.model.repo import TreeDoc |
| if lazy and tree.hex() in seen: return |
| seen.add(tree.hex()) |
| doc = TreeDoc(dict( |
| _id=tree.hex(), |
| tree_ids=[], |
| blob_ids=[], |
| other_ids=[])) |
| for name, t in tree.trees.iteritems(): |
| self.refresh_tree_info(t, seen, lazy) |
| doc.tree_ids.append( |
| dict(name=h.really_unicode(name), id=t.hex())) |
| for name, oid in tree.blobs.iteritems(): |
| doc.blob_ids.append( |
| dict(name=h.really_unicode(name), id=oid)) |
| doc.m.save(safe=False) |
| return doc |
| |
| def log(self, object_id, skip, count): |
| obj = self._hg[object_id] |
| candidates = [ obj ] |
| result = [] |
| seen = set() |
| while count and candidates: |
| candidates.sort(key=lambda c:sum(c.date())) |
| obj = candidates.pop(-1) |
| if obj.hex() in seen: continue |
| seen.add(obj.hex()) |
| if skip == 0: |
| result.append(obj.hex()) |
| count -= 1 |
| else: |
| skip -= 1 |
| candidates += self.real_parents(obj) |
| return result, [ p.hex() for p in candidates ] |
| |
| def open_blob(self, blob): |
| fctx = self._hg[blob.commit._id][h.really_unicode(blob.path()).encode('utf-8')[1:]] |
| return StringIO(fctx.data()) |
| |
| def blob_size(self, blob): |
| fctx = self._hg[blob.commit._id][h.really_unicode(blob.path()).encode('utf-8')[1:]] |
| return fctx.size() |
| |
| def _setup_hooks(self, source_path=None): |
| 'Set up the hg changegroup hook' |
| hgrc = os.path.join(self._repo.fs_path, self._repo.name, '.hg', 'hgrc') |
| cp = ConfigParser() |
| cp.read(hgrc) |
| if not cp.has_section('hooks'): |
| cp.add_section('hooks') |
| url = (tg.config.get('base_url', 'http://localhost:8080') |
| + '/auth/refresh_repo' + self._repo.url()) |
| cp.set('hooks','; = [the next line is required for site integration, do not remove/modify]', '') |
| cp.set('hooks','changegroup.sourceforge','curl -s %s' % url) |
| with open(hgrc, 'w') as fp: |
| cp.write(fp) |
| os.chmod(hgrc, 0755) |
| |
| def _tree_from_changectx(self, changectx): |
| '''Build a fake git-like tree from a changectx and its manifest''' |
| root = GitLikeTree() |
| for filepath in changectx.manifest(): |
| fctx = changectx[filepath] |
| oid = b2a_hex(fctx.filenode()) |
| root.set_blob(filepath, oid) |
| return root |
| |
| def symbolics_for_commit(self, commit): |
| branch_heads, tags = super(self.__class__, self).symbolics_for_commit(commit) |
| ctx = self._hg[commit._id] |
| return [ctx.branch()], tags |
| |
| def compute_tree_new(self, commit, tree_path='/'): |
| ctx = self._hg[commit._id] |
| fake_tree = self._tree_from_changectx(ctx) |
| fake_tree = fake_tree.get_tree(tree_path) |
| tree = self.refresh_tree_info(fake_tree, set()) |
| return tree._id |
| |
| Mapper.compile_all() |
