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path: root/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/db/sourcestamps.py
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# This file is part of Buildbot.  Buildbot 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, version 2.
#
# 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.
#
# Copyright Buildbot Team Members

import base64
import sqlalchemy as sa
from twisted.internet import defer
from twisted.python import log
from buildbot.db import base

class SsDict(dict):
    pass

class SsList(list):
    pass

class SourceStampsConnectorComponent(base.DBConnectorComponent):
    # Documentation is in developer/database.rst

    def addSourceStamp(self, branch, revision, repository,
                          project, sourcestampsetid, codebase='',
                          patch_body=None, patch_level=0, patch_author="",
                          patch_comment="", patch_subdir=None, changeids=[]):
        def thd(conn):
            transaction = conn.begin()

            # handle inserting a patch
            patchid = None
            if patch_body is not None:
                ins = self.db.model.patches.insert()
                r = conn.execute(ins, dict(
                    patchlevel=patch_level,
                    patch_base64=base64.b64encode(patch_body),
                    patch_author=patch_author,
                    patch_comment=patch_comment,
                    subdir=patch_subdir))
                patchid = r.inserted_primary_key[0]

            # insert the sourcestamp itself
            tbl = self.db.model.sourcestamps
            self.check_length(tbl.c.branch, branch)
            self.check_length(tbl.c.revision, revision)
            self.check_length(tbl.c.repository, repository)
            self.check_length(tbl.c.project, project)

            r = conn.execute(tbl.insert(), dict(
                branch=branch,
                revision=revision,
                patchid=patchid,
                repository=repository,
                codebase=codebase,
                project=project,
                sourcestampsetid=sourcestampsetid))
            ssid = r.inserted_primary_key[0]

            # handle inserting change ids
            if changeids:
                ins = self.db.model.sourcestamp_changes.insert()
                conn.execute(ins, [
                    dict(sourcestampid=ssid, changeid=changeid)
                    for changeid in changeids ])

            transaction.commit()

            # and return the new ssid
            return ssid
        return self.db.pool.do(thd)

    @base.cached("sssetdicts")
    @defer.inlineCallbacks
    def getSourceStamps(self,sourcestampsetid):
        def getSourceStampIds(sourcestampsetid):
            def thd(conn):
                tbl = self.db.model.sourcestamps
                q = sa.select([tbl.c.id],
                       whereclause=(tbl.c.sourcestampsetid == sourcestampsetid))
                res = conn.execute(q)
                return [ row.id for row in res.fetchall() ]
            return self.db.pool.do(thd)
        ssids = yield getSourceStampIds(sourcestampsetid)

        sslist=SsList()
        for ssid in ssids:
            sourcestamp = yield self.getSourceStamp(ssid)
            sslist.append(sourcestamp)
        defer.returnValue(sslist)

    @base.cached("ssdicts")
    def getSourceStamp(self, ssid):
        def thd(conn):
            tbl = self.db.model.sourcestamps
            q = tbl.select(whereclause=(tbl.c.id == ssid))
            res = conn.execute(q)
            row = res.fetchone()
            if not row:
                return None
            ssdict = SsDict(ssid=ssid, branch=row.branch, sourcestampsetid=row.sourcestampsetid,
                    revision=row.revision, patch_body=None, patch_level=None,
                    patch_author=None, patch_comment=None, patch_subdir=None,
                    repository=row.repository, codebase=row.codebase,
                    project=row.project,
                    changeids=set([]))
            patchid = row.patchid
            res.close()

            # fetch the patch, if necessary
            if patchid is not None:
                tbl = self.db.model.patches
                q = tbl.select(whereclause=(tbl.c.id == patchid))
                res = conn.execute(q)
                row = res.fetchone()
                if row:
                    # note the subtle renaming here
                    ssdict['patch_level'] = row.patchlevel
                    ssdict['patch_subdir'] = row.subdir
                    ssdict['patch_author'] = row.patch_author
                    ssdict['patch_comment'] = row.patch_comment
                    body = base64.b64decode(row.patch_base64)
                    ssdict['patch_body'] = body
                else:
                    log.msg('patchid %d, referenced from ssid %d, not found'
                            % (patchid, ssid))
                res.close()

            # fetch change ids
            tbl = self.db.model.sourcestamp_changes
            q = tbl.select(whereclause=(tbl.c.sourcestampid == ssid))
            res = conn.execute(q)
            for row in res:
                ssdict['changeids'].add(row.changeid)
            res.close()

            return ssdict
        return self.db.pool.do(thd)