Golang charm.MustParseURL函数代码示例

func (s *GitDeployerSuite) TestInstall(c *gc.C) {
	// Prepare.
	info := s.bundles.AddCustomBundle(c, corecharm.MustParseURL("cs:s/c-1"), func(path string) {
		err := ioutil.WriteFile(filepath.Join(path, "some-file"), []byte("hello"), 0644)
		c.Assert(err, gc.IsNil)
	})
	err := s.deployer.Stage(info, nil)
	c.Assert(err, gc.IsNil)
	checkCleanup(c, s.deployer)

	// Install.
	err = s.deployer.Deploy()
	c.Assert(err, gc.IsNil)
	checkCleanup(c, s.deployer)

	// Check content.
	data, err := ioutil.ReadFile(filepath.Join(s.targetPath, "some-file"))
	c.Assert(err, gc.IsNil)
	c.Assert(string(data), gc.Equals, "hello")

	target := charm.NewGitDir(s.targetPath)
	url, err := target.ReadCharmURL()
	c.Assert(err, gc.IsNil)
	c.Assert(url, gc.DeepEquals, corecharm.MustParseURL("cs:s/c-1"))
	lines, err := target.Log()
	c.Assert(err, gc.IsNil)
	c.Assert(lines, gc.HasLen, 2)
	c.Assert(lines[0], gc.Matches, `[0-9a-f]{7} Deployed charm "cs:s/c-1"\.`)
	c.Assert(lines[1], gc.Matches, `[0-9a-f]{7} Imported charm "cs:s/c-1"\.`)
}

func (s *StoreSuite) TestLockUpdatesExpires(c *gc.C) {
	urlA := charm.MustParseURL("cs:oneiric/wordpress-a")
	urlB := charm.MustParseURL("cs:oneiric/wordpress-b")
	urls := []*charm.URL{urlA, urlB}

	// Initiate an update of B only to force a partial conflict.
	lock1, err := s.store.LockUpdates(urls[1:])
	c.Assert(err, gc.IsNil)

	// Hack time to force an expiration.
	locks := s.Session.DB("juju").C("locks")
	selector := bson.M{"_id": urlB.String()}
	update := bson.M{"time": bson.Now().Add(-store.UpdateTimeout - 10e9)}
	err = locks.Update(selector, update)
	c.Check(err, gc.IsNil)

	// Works due to expiration of previous lock.
	lock2, err := s.store.LockUpdates(urls)
	c.Assert(err, gc.IsNil)
	defer lock2.Unlock()

	// The expired lock was forcefully killed. Unlocking it must
	// not interfere with lock2 which is still alive.
	lock1.Unlock()

	// The above statement was a NOOP and lock2 is still in effect,
	// so attempting another lock must necessarily fail.
	lock3, err := s.store.LockUpdates(urls)
	c.Check(err, gc.Equals, store.ErrUpdateConflict)
	c.Check(lock3, gc.IsNil)
}

func (s *StoreSuite) TestRedundantUpdate(c *gc.C) {
	urlA := charm.MustParseURL("cs:oneiric/wordpress-a")
	urlB := charm.MustParseURL("cs:oneiric/wordpress-b")
	urls := []*charm.URL{urlA, urlB}

	pub, err := s.store.CharmPublisher(urls, "digest-0")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 0)
	err = pub.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)

	// All charms are already on digest-0.
	pub, err = s.store.CharmPublisher(urls, "digest-0")
	c.Assert(err, gc.ErrorMatches, "charm is up-to-date")
	c.Assert(err, gc.Equals, store.ErrRedundantUpdate)
	c.Assert(pub, gc.IsNil)

	// Now add a second revision just for wordpress-b.
	pub, err = s.store.CharmPublisher(urls[1:], "digest-1")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 1)
	err = pub.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)

	// Same digest bumps revision because one of them was old.
	pub, err = s.store.CharmPublisher(urls, "digest-1")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 2)
	err = pub.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)
}

func (s *StoreSuite) TestCharmPublishError(c *gc.C) {
	url := charm.MustParseURL("cs:oneiric/wordpress")
	urls := []*charm.URL{url}

	// Publish one successfully to bump the revision so we can
	// make sure it is being correctly set below.
	pub, err := s.store.CharmPublisher(urls, "one-digest")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 0)
	err = pub.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)

	pub, err = s.store.CharmPublisher(urls, "another-digest")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 1)
	err = pub.Publish(&FakeCharmDir{error: "beforeWrite"})
	c.Assert(err, gc.ErrorMatches, "beforeWrite")

	pub, err = s.store.CharmPublisher(urls, "another-digest")
	c.Assert(err, gc.IsNil)
	c.Assert(pub.Revision(), gc.Equals, 1)
	err = pub.Publish(&FakeCharmDir{error: "afterWrite"})
	c.Assert(err, gc.ErrorMatches, "afterWrite")

	// Still at the original charm revision that succeeded first.
	info, err := s.store.CharmInfo(url)
	c.Assert(err, gc.IsNil)
	c.Assert(info.Revision(), gc.Equals, 0)
	c.Assert(info.Digest(), gc.Equals, "one-digest")
}

func (s *FilterSuite) TestCharmErrorEvents(c *gc.C) {
	f, err := newFilter(s.uniter, s.unit.Tag())
	c.Assert(err, gc.IsNil)
	defer f.Stop() // no AssertStop, we test for an error below

	assertNoChange := func() {
		s.BackingState.StartSync()
		select {
		case <-f.ConfigEvents():
			c.Fatalf("unexpected config event")
		case <-time.After(coretesting.ShortWait):
		}
	}

	// Check setting an invalid charm URL does not send events.
	err = f.SetCharm(charm.MustParseURL("cs:missing/one-1"))
	c.Assert(err, gc.Equals, tomb.ErrDying)
	assertNoChange()
	s.assertFilterDies(c, f)

	// Filter died after the error, so restart it.
	f, err = newFilter(s.uniter, s.unit.Tag())
	c.Assert(err, gc.IsNil)
	defer f.Stop() // no AssertStop, we test for an error below

	// Check with a nil charm URL, again no changes.
	err = f.SetCharm(nil)
	c.Assert(err, gc.Equals, tomb.ErrDying)
	assertNoChange()
	s.assertFilterDies(c, f)
}

func (s *StoreSuite) TestConflictingUpdate(c *gc.C) {
	// This test checks that if for whatever reason the locking
	// safety-net fails, adding two charms in parallel still
	// results in a sane outcome.
	url := charm.MustParseURL("cs:oneiric/wordpress")
	urls := []*charm.URL{url}

	pub1, err := s.store.CharmPublisher(urls, "some-digest")
	c.Assert(err, gc.IsNil)
	c.Assert(pub1.Revision(), gc.Equals, 0)

	pub2, err := s.store.CharmPublisher(urls, "some-digest")
	c.Assert(err, gc.IsNil)
	c.Assert(pub2.Revision(), gc.Equals, 0)

	// The first publishing attempt should work.
	err = pub2.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)

	// Attempting to finish the second attempt should break,
	// since it lost the race and the given revision is already
	// in place.
	err = pub1.Publish(&FakeCharmDir{})
	c.Assert(err, gc.Equals, store.ErrUpdateConflict)
}

func (s *SSHSuite) TestSSHCommand(c *gc.C) {
	m := s.makeMachines(3, c, true)
	ch := coretesting.Charms.Dir("dummy")
	curl := charm.MustParseURL(
		fmt.Sprintf("local:quantal/%s-%d", ch.Meta().Name, ch.Revision()),
	)
	bundleURL, err := url.Parse("http://bundles.testing.invalid/dummy-1")
	c.Assert(err, gc.IsNil)
	dummy, err := s.State.AddCharm(ch, curl, bundleURL, "dummy-1-sha256")
	c.Assert(err, gc.IsNil)
	srv := s.AddTestingService(c, "mysql", dummy)
	s.addUnit(srv, m[0], c)

	srv = s.AddTestingService(c, "mongodb", dummy)
	s.addUnit(srv, m[1], c)
	s.addUnit(srv, m[2], c)

	for i, t := range sshTests {
		c.Logf("test %d: %s -> %s\n", i, t.about, t.args)
		ctx := coretesting.Context(c)
		jujucmd := cmd.NewSuperCommand(cmd.SuperCommandParams{})
		jujucmd.Register(envcmd.Wrap(&SSHCommand{}))

		code := cmd.Main(jujucmd, ctx, t.args)
		c.Check(code, gc.Equals, 0)
		c.Check(ctx.Stderr.(*bytes.Buffer).String(), gc.Equals, "")
		c.Check(ctx.Stdout.(*bytes.Buffer).String(), gc.Equals, t.result)
	}
}

func (s *DeploySuite) TestCharmDir(c *gc.C) {
	coretesting.Charms.ClonedDirPath(s.SeriesPath, "dummy")
	err := runDeploy(c, "local:dummy")
	c.Assert(err, gc.IsNil)
	curl := charm.MustParseURL("local:precise/dummy-1")
	s.AssertService(c, "dummy", curl, 1, 0)
}

func (s *DeploySuite) TestNumUnits(c *gc.C) {
	coretesting.Charms.BundlePath(s.SeriesPath, "dummy")
	err := runDeploy(c, "local:dummy", "-n", "13")
	c.Assert(err, gc.IsNil)
	curl := charm.MustParseURL("local:precise/dummy-1")
	s.AssertService(c, "dummy", curl, 13, 0)
}

func (s *DeploySuite) TestSubordinateCharm(c *gc.C) {
	coretesting.Charms.BundlePath(s.SeriesPath, "logging")
	err := runDeploy(c, "local:logging")
	c.Assert(err, gc.IsNil)
	curl := charm.MustParseURL("local:precise/logging-1")
	s.AssertService(c, "logging", curl, 0, 0)
}

func addCharm(c *gc.C, st *State, series string, ch charm.Charm) *Charm {
	ident := fmt.Sprintf("%s-%s-%d", series, ch.Meta().Name, ch.Revision())
	curl := charm.MustParseURL("local:" + series + "/" + ident)
	bundleURL, err := url.Parse("http://bundles.testing.invalid/" + ident)
	c.Assert(err, gc.IsNil)
	sch, err := st.AddCharm(ch, curl, bundleURL, ident+"-sha256")
	c.Assert(err, gc.IsNil)
	return sch
}

func (s *GitDeployerSuite) TestUpgrade(c *gc.C) {
	// Install.
	info1 := s.bundles.AddCustomBundle(c, corecharm.MustParseURL("cs:s/c-1"), func(path string) {
		err := ioutil.WriteFile(filepath.Join(path, "some-file"), []byte("hello"), 0644)
		c.Assert(err, gc.IsNil)
		err = os.Symlink("./some-file", filepath.Join(path, "a-symlink"))
		c.Assert(err, gc.IsNil)
	})
	err := s.deployer.Stage(info1, nil)
	c.Assert(err, gc.IsNil)
	err = s.deployer.Deploy()
	c.Assert(err, gc.IsNil)

	// Upgrade.
	info2 := s.bundles.AddCustomBundle(c, corecharm.MustParseURL("cs:s/c-2"), func(path string) {
		err := ioutil.WriteFile(filepath.Join(path, "some-file"), []byte("goodbye"), 0644)
		c.Assert(err, gc.IsNil)
		err = ioutil.WriteFile(filepath.Join(path, "a-symlink"), []byte("not any more!"), 0644)
		c.Assert(err, gc.IsNil)
	})
	err = s.deployer.Stage(info2, nil)
	c.Assert(err, gc.IsNil)
	checkCleanup(c, s.deployer)
	err = s.deployer.Deploy()
	c.Assert(err, gc.IsNil)
	checkCleanup(c, s.deployer)

	// Check content.
	data, err := ioutil.ReadFile(filepath.Join(s.targetPath, "some-file"))
	c.Assert(err, gc.IsNil)
	c.Assert(string(data), gc.Equals, "goodbye")
	data, err = ioutil.ReadFile(filepath.Join(s.targetPath, "a-symlink"))
	c.Assert(err, gc.IsNil)
	c.Assert(string(data), gc.Equals, "not any more!")

	target := charm.NewGitDir(s.targetPath)
	url, err := target.ReadCharmURL()
	c.Assert(err, gc.IsNil)
	c.Assert(url, gc.DeepEquals, corecharm.MustParseURL("cs:s/c-2"))
	lines, err := target.Log()
	c.Assert(err, gc.IsNil)
	c.Assert(lines, gc.HasLen, 5)
	c.Assert(lines[0], gc.Matches, `[0-9a-f]{7} Upgraded charm to "cs:s/c-2".`)
}

func (s *StoreSuite) TestRevisioning(c *gc.C) {
	urlA := charm.MustParseURL("cs:oneiric/wordpress-a")
	urlB := charm.MustParseURL("cs:oneiric/wordpress-b")
	urls := []*charm.URL{urlA, urlB}

	tests := []struct {
		urls []*charm.URL
		data string
	}{
		{urls[0:], "charm-revision-0"},
		{urls[1:], "charm-revision-1"},
		{urls[0:], "charm-revision-2"},
	}

	for i, t := range tests {
		pub, err := s.store.CharmPublisher(t.urls, fmt.Sprintf("digest-%d", i))
		c.Assert(err, gc.IsNil)
		c.Assert(pub.Revision(), gc.Equals, i)

		err = pub.Publish(&FakeCharmDir{})
		c.Assert(err, gc.IsNil)
	}

	for i, t := range tests {
		for _, url := range t.urls {
			url = url.WithRevision(i)
			info, rc, err := s.store.OpenCharm(url)
			c.Assert(err, gc.IsNil)
			data, err := ioutil.ReadAll(rc)
			cerr := rc.Close()
			c.Assert(info.Revision(), gc.Equals, i)
			c.Assert(url.Revision, gc.Equals, i) // Untouched.
			c.Assert(cerr, gc.IsNil)
			c.Assert(string(data), gc.Equals, string(t.data))
			c.Assert(err, gc.IsNil)
		}
	}

	info, rc, err := s.store.OpenCharm(urlA.WithRevision(1))
	c.Assert(err, gc.Equals, store.ErrNotFound)
	c.Assert(info, gc.IsNil)
	c.Assert(rc, gc.IsNil)
}

func (s *DeploySuite) TestConstraints(c *gc.C) {
	coretesting.Charms.BundlePath(s.SeriesPath, "dummy")
	err := runDeploy(c, "local:dummy", "--constraints", "mem=2G cpu-cores=2")
	c.Assert(err, gc.IsNil)
	curl := charm.MustParseURL("local:precise/dummy-1")
	service, _ := s.AssertService(c, "dummy", curl, 1, 0)
	cons, err := service.Constraints()
	c.Assert(err, gc.IsNil)
	c.Assert(cons, gc.DeepEquals, constraints.MustParse("mem=2G cpu-cores=2"))
}

func (s *StoreSuite) prepareServer(c *gc.C) (*store.Server, *charm.URL) {
	curl := charm.MustParseURL("cs:precise/wordpress")
	pub, err := s.store.CharmPublisher([]*charm.URL{curl}, "some-digest")
	c.Assert(err, gc.IsNil)
	err = pub.Publish(&FakeCharmDir{})
	c.Assert(err, gc.IsNil)

	server, err := store.NewServer(s.store)
	c.Assert(err, gc.IsNil)
	return server, curl
}