func (t *ToolsSuite) TestPutGetTools(c *C) {
tools, err := environs.PutTools(t.env.Storage(), nil)
c.Assert(err, IsNil)
c.Assert(tools.Binary, Equals, version.Current)
c.Assert(tools.URL, Not(Equals), "")
for i, get := range []func(dataDir string, t *state.Tools) error{
getTools,
getToolsWithTar,
} {
c.Logf("test %d", i)
// Unarchive the tool executables into a temp directory.
dataDir := c.MkDir()
err = get(dataDir, tools)
c.Assert(err, IsNil)
dir := environs.ToolsDir(dataDir, version.Current)
// Verify that each tool executes and produces some
// characteristic output.
for i, test := range commandTests {
c.Logf("command test %d", i)
out, err := exec.Command(filepath.Join(dir, test.cmd[0]), test.cmd[1:]...).CombinedOutput()
if err != nil {
c.Assert(err, FitsTypeOf, (*exec.ExitError)(nil))
}
c.Check(string(out), Matches, test.output)
}
data, err := ioutil.ReadFile(filepath.Join(dir, urlFile))
c.Assert(err, IsNil)
c.Assert(string(data), Equals, tools.URL)
}
}
func (s *ToolsSuite) SetUpTest(c *C) {
s.dataDir = c.MkDir()
s.toolsDir = environs.ToolsDir(s.dataDir, version.Current)
err := os.MkdirAll(s.toolsDir, 0755)
c.Assert(err, IsNil)
err = os.Symlink(s.toolsDir, environs.AgentToolsDir(s.dataDir, "unit-u-123"))
c.Assert(err, IsNil)
}
// assertToolsContents asserts that the directory for the tools
// has the given contents.
func (t *ToolsSuite) assertToolsContents(c *C, tools *state.Tools, files []*testing.TarFile) {
var wantNames []string
for _, f := range files {
wantNames = append(wantNames, f.Header.Name)
}
wantNames = append(wantNames, urlFile)
dir := environs.ToolsDir(t.dataDir, tools.Binary)
assertDirNames(c, dir, wantNames)
assertFileContents(c, dir, urlFile, tools.URL, 0200)
for _, f := range files {
assertFileContents(c, dir, f.Header.Name, f.Contents, 0400)
}
gotTools, err := environs.ReadTools(t.dataDir, tools.Binary)
c.Assert(err, IsNil)
c.Assert(*gotTools, Equals, *tools)
}
func (t *ToolsSuite) TestReadToolsErrors(c *C) {
vers := version.MustParseBinary("1.2.3-precise-amd64")
tools, err := environs.ReadTools(t.dataDir, vers)
c.Assert(tools, IsNil)
c.Assert(err, ErrorMatches, "cannot read URL in tools directory: .*")
dir := environs.ToolsDir(t.dataDir, vers)
err = os.MkdirAll(dir, 0755)
c.Assert(err, IsNil)
err = ioutil.WriteFile(filepath.Join(dir, urlFile), []byte(" \t\n"), 0644)
c.Assert(err, IsNil)
tools, err = environs.ReadTools(t.dataDir, vers)
c.Assert(tools, IsNil)
c.Assert(err, ErrorMatches, "empty URL in tools directory.*")
}
func (fix *SimpleToolsFixture) SetUp(c *C, dataDir string) {
fix.dataDir = dataDir
fix.initDir = c.MkDir()
fix.logDir = c.MkDir()
toolsDir := environs.ToolsDir(fix.dataDir, version.Current)
err := os.MkdirAll(toolsDir, 0755)
c.Assert(err, IsNil)
jujudPath := filepath.Join(toolsDir, "jujud")
err = ioutil.WriteFile(jujudPath, []byte(fakeJujud), 0755)
c.Assert(err, IsNil)
urlPath := filepath.Join(toolsDir, "downloaded-url.txt")
err = ioutil.WriteFile(urlPath, []byte("http://example.com/tools"), 0644)
c.Assert(err, IsNil)
fix.binDir = c.MkDir()
fix.origPath = os.Getenv("PATH")
os.Setenv("PATH", fix.binDir+":"+fix.origPath)
fix.makeBin(c, "status", `echo "blah stop/waiting"`)
fix.makeBin(c, "stopped-status", `echo "blah stop/waiting"`)
fix.makeBin(c, "started-status", `echo "blah start/running, process 666"`)
fix.makeBin(c, "start", "cp $(which started-status) $(which status)")
fix.makeBin(c, "stop", "cp $(which stopped-status) $(which status)")
}
// getToolsWithTar is the same as getTools but uses tar
// itself so we're not just testing the Go tar package against
// itself.
func getToolsWithTar(dataDir string, tools *state.Tools) error {
resp, err := http.Get(tools.URL)
if err != nil {
return err
}
defer resp.Body.Close()
dir := environs.ToolsDir(dataDir, tools.Binary)
err = os.MkdirAll(dir, 0755)
if err != nil {
return err
}
cmd := exec.Command("tar", "xz")
cmd.Dir = dir
cmd.Stdin = resp.Body
out, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("tar extract failed: %s", out)
}
return ioutil.WriteFile(filepath.Join(cmd.Dir, urlFile), []byte(tools.URL), 0644)
}
func (s *UpgraderSuite) TestUpgrader(c *C) {
currentTools := s.primeTools(c, version.MustParseBinary("2.0.0-foo-bar"))
// Remove the tools from the storage so that we're sure that the
// uploader isn't trying to fetch them.
resp, err := http.Get(currentTools.URL)
c.Assert(err, IsNil)
err = environs.UnpackTools(s.DataDir(), currentTools, resp.Body)
c.Assert(err, IsNil)
s.removeVersion(c, currentTools.Binary)
var (
u *Upgrader
upgraderDone <-chan error
)
defer func() {
if u != nil {
c.Assert(u.Stop(), IsNil)
}
}()
uploaded := make(map[version.Number]*state.Tools)
for i, test := range upgraderTests {
c.Logf("%d. %s; current version: %v", i, test.about, version.Current)
for _, v := range test.upload {
vers := version.Current
vers.Number = version.MustParse(v)
tools := s.uploadTools(c, vers)
uploaded[vers.Number] = tools
}
if test.current != "" {
version.Current = version.MustParseBinary(test.current)
currentTools, err = environs.ReadTools(s.DataDir(), version.Current)
c.Assert(err, IsNil)
}
if u == nil {
u = s.startUpgrader(c, currentTools)
}
if test.propose != "" {
s.proposeVersion(c, version.MustParse(test.propose), test.devVersion)
s.State.StartSync()
}
if test.upgradeTo == "" {
s.State.StartSync()
assertNothingHappens(c, upgraderDone)
} else {
ug := waitDeath(c, u)
tools := uploaded[version.MustParse(test.upgradeTo)]
c.Check(ug.NewTools, DeepEquals, tools)
c.Check(ug.OldTools.Binary, Equals, version.Current)
c.Check(ug.DataDir, Equals, s.DataDir())
c.Check(ug.AgentName, Equals, "testagent")
// Check that the upgraded version was really downloaded.
data, err := ioutil.ReadFile(filepath.Join(environs.ToolsDir(s.DataDir(), tools.Binary), "jujud"))
c.Assert(err, IsNil)
c.Assert(string(data), Equals, "jujud contents "+tools.Binary.String())
u, upgraderDone = nil, nil
currentTools = tools
version.Current = tools.Binary
}
}
}
func (cfg *MachineConfig) jujuTools() string {
return environs.ToolsDir(cfg.DataDir, cfg.Tools.Binary)
}
func (t *ToolsSuite) TestToolsDir(c *C) {
c.Assert(environs.ToolsDir("/var/lib/juju", binaryVersion("1.2.3-precise-amd64")),
Equals,
"/var/lib/juju/tools/1.2.3-precise-amd64")
}
