// implements the Runner interface creating the new virtual environment
func (m *Mkenv) Run() (string, error) {
fmt.Fprint(cache.Output, "Checking installed Go versions... ")
if err := m.checkInstalled(); err != nil {
fmt.Fprintln(cache.Output, utils.Fail("✖"))
return "", err
}
fmt.Fprintln(cache.Output, utils.Ok("✔"))
newEnv := env.NewEnvironment(m.Name, m.Prompt)
if newEnv.Exists() && !m.Force {
suggest := fmt.Sprintf(
" %s: use --force to force reinstallation", utils.Ok("suggestion"))
return "", fmt.Errorf("error: %s already exists\n%s", m.Name, suggest)
}
if err := newEnv.Generate(); err != nil {
os.RemoveAll(filepath.Join(os.Getenv("VENGO_HOME"), m.Name))
return "", err
}
if err := newEnv.Install(m.Version); err != nil {
os.RemoveAll(filepath.Join(os.Getenv("VENGO_HOME"), m.Name))
return "", err
}
return fmt.Sprintf(
"%s", utils.Ok(fmt.Sprintf(
"Go %s environment created using %s", m.Name, m.Version))), nil
}
// load environment using the activate environment script, return an error
// if the operation can't be completed
func (e *Export) LoadEnvironment() (*env.Environment, error) {
readFile := func(filename string) ([]byte, error) {
return ioutil.ReadFile(filename)
}
filenames := [2]string{
filepath.Join(e.Environment, "bin", "activate"),
filepath.Join(cache.VenGO_PATH, e.Environment, "bin", "activate"),
}
var err error
var activateFile []byte
for _, filename := range filenames {
activateFile, err = readFile(filename)
if err == nil {
break
}
}
if err != nil {
return nil, err
}
byteLines := bytes.Split(activateFile, []byte("\n"))
re := regexp.MustCompile(`"(.*?) `)
prompt := strings.TrimRight(strings.TrimLeft(
re.FindAllString(string(byteLines[86]), 1)[0], `"`), " ")
environment := env.NewEnvironment(path.Base(e.Environment), prompt)
return environment, nil
}
log.SetOutput(ioutil.Discard)
BeforeSuite(func() {
cache.VenGO_PATH = filepath.Join(cache.VenGO_PATH, "..", ".VenGOTest")
os.MkdirAll(cache.VenGO_PATH, 0755)
})
AfterSuite(func() {
os.RemoveAll(cache.VenGO_PATH)
})
Describe("NewEnvironment", func() {
It("Return a configured Environment structure", func() {
name, prompt := "goTest", "(goTest)"
path := filepath.Join(cache.VenGO_PATH, name)
e := env.NewEnvironment(name, prompt)
Expect(e.Goroot).To(Equal(filepath.Join(path, "lib")))
Expect(e.Gotooldir).To(Equal(filepath.Join(
path, "lib", "pkg", "tool", fmt.Sprintf("%s_%s", runtime.GOOS, runtime.GOARCH))))
Expect(e.Gopath).To(Equal(path))
Expect(e.PS1).To(Equal(prompt))
Expect(e.VenGO_PATH).To(Equal(path))
})
})
if RunSlowTests {
Describe("Generate", func() {
It("Will generate a valid template file", func() {
name := "goTest"
prompt := "[{(goTest)}] "
e := env.NewEnvironment(name, prompt)
})
})
Describe("LoadEnvironment", func() {
var renamed bool = false
envs_path := cache.ExpandUser(filepath.Join("~", ".VenGO"))
BeforeEach(func() {
os.Setenv("VENGO_HOME", "")
if _, err := os.Stat(envs_path); err == nil {
rename := filepath.Join(envs_path, "..", "Real.VenGO")
Expect(os.Rename(envs_path, rename)).To(Succeed())
Expect(os.MkdirAll(envs_path, 0755)).To(Succeed())
renamed = true
}
e := env.NewEnvironment("goTest", "[{(goTest)}]")
Expect(e.Generate()).To(Succeed())
})
AfterEach(func() {
if renamed {
rename := filepath.Join(envs_path, "..", "Real.VenGO")
Expect(os.RemoveAll(envs_path)).To(Succeed())
Expect(os.Rename(rename, envs_path)).To(Succeed())
}
})
It("Should return back a complete loaded environment", func() {
options := func(e *commands.Export) {
e.Environment = cache.ExpandUser("~/.VenGO/goTest")
}