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  • Committer: Robert Collins
  • Date: 2005-10-24 07:01:08 UTC
  • mto: (147.1.42) (364.1.3 bzrtools)
  • mto: This revision was merged to the branch mainline in revision 324.
  • Revision ID: robertc@robertcollins.net-20051024070108-f85025066b05f809
use sets and strings to optimise finding indirect merges somewhat

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zap.py
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from shutil import rmtree
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from bzrlib import (
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    bzrdir,
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    revision as _mod_revision,
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    )
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from bzrlib.branch import Branch
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from bzrlib.errors import NoWorkingTree, NotLocalUrl, NotBranchError
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from bzrlib.workingtree import WorkingTree
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from errors import (NotCheckout, UncommittedCheckout, ParentMissingRevisions,
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                    NoParent)
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def zap(path, remove_branch=False, allow_modified=False):
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    try:
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        wt = bzrdir.BzrDir.open(path).open_workingtree(path,
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                                                       recommend_upgrade=False)
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    except (NoWorkingTree, NotBranchError):
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        raise NotCheckout(path)
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    tree_base = wt.bzrdir.transport.base
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    branch = wt.branch
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    branch_base = branch.bzrdir.transport.base
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    if tree_base == branch_base:
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        raise NotCheckout(path)
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    if not allow_modified:
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        delta = wt.changes_from(wt.basis_tree(), want_unchanged=False)
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        if delta.has_changed():
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            raise UncommittedCheckout()
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    if remove_branch:
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        parent_loc = branch.get_parent()
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        if parent_loc is None:
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            raise NoParent()
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        parent = Branch.open(parent_loc)
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        last_revision = _mod_revision.ensure_null(parent.last_revision())
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        p_ancestry = parent.repository.get_ancestry(last_revision)
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        if (last_revision != _mod_revision.NULL_REVISION and
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            branch.last_revision() not in p_ancestry):
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            raise ParentMissingRevisions(branch.get_parent())
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    rmtree(path)
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    if remove_branch:
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        t = branch.bzrdir.transport
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        while t.base != branch_base:
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            t = t.clone('..')
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        t = t.clone('..')
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        t.delete_tree('')
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def test_suite():
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    import os
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    from unittest import makeSuite
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    from bzrlib.bzrdir import BzrDir, BzrDirMetaFormat1
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    from bzrlib.branch import BranchReferenceFormat
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    from bzrlib.tests import TestCaseInTempDir
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    class TestZap(TestCaseInTempDir):
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        def make_checkout(self):
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            wt = BzrDir.create_standalone_workingtree('source')
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            os.mkdir('checkout')
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            checkout = BzrDirMetaFormat1().initialize('checkout')
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            BranchReferenceFormat().initialize(checkout, wt.branch)
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            return checkout.create_workingtree()
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        def make_checkout2(self):
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            wt = self.make_checkout()
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            wt2 = wt.branch.bzrdir.sprout('source2').open_workingtree()
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            os.mkdir('checkout2')
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            checkout = BzrDirMetaFormat1().initialize('checkout2')
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            BranchReferenceFormat().initialize(checkout, wt2.branch)
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            return checkout.create_workingtree()
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        def test_is_checkout(self):
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            self.assertRaises(NotCheckout, zap, '.')
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            wt = BzrDir.create_standalone_workingtree('.')
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            self.assertRaises(NotCheckout, zap, '.')
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        def test_zap_works(self):
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            self.make_checkout()
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            self.assertIs(True, os.path.exists('checkout'))
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            zap('checkout')
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            self.assertIs(False, os.path.exists('checkout'))
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            self.assertIs(True, os.path.exists('source'))
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        def test_zap_branch(self):
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            self.make_checkout2()
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            base = WorkingTree.open('checkout').branch.base
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            self.assertIs(True, os.path.exists('checkout'))
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            self.assertRaises(NoParent, zap, 'checkout', remove_branch=True)
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            self.assertIs(True, os.path.exists('checkout'))
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            self.assertIs(True, os.path.exists('source'))
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            zap('checkout2', remove_branch=True)
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            self.assertIs(False, os.path.exists('checkout2'))
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            self.assertIs(False, os.path.exists('source2'))
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        def test_checks_modified(self):
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            checkout = self.make_checkout()
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            os.mkdir('checkout/foo')
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            checkout.add('foo')
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            self.assertRaises(UncommittedCheckout, zap, 'checkout')
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            checkout.commit('commit changes to branch')
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            zap('checkout')
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        def test_allow_modified(self):
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            checkout = self.make_checkout()
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            os.mkdir('checkout/foo')
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            checkout.add('foo')
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            self.assertRaises(UncommittedCheckout, zap, 'checkout')
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            zap('checkout', allow_modified=True)
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    return makeSuite(TestZap)