// install the given version into the environment creating a Symlink to it
func (e *Environment) Install(ver string) error {
if !cache.AlreadyCompiled(ver) {
if err := cache.Compile(ver, false, false); err != nil {
fmt.Println("while installing:", err)
return err
}
}
path := filepath.Join(cache.CacheDirectory(), ver)
if _, err := os.Stat(path); err != nil {
path = filepath.Join(cache.CacheDirectory(), fmt.Sprintf("go%s", ver))
}
link := func() error {
return os.Symlink(path, filepath.Join(e.VenGO_PATH, "lib"))
}
if err := link(); err != nil {
if os.IsExist(err) {
os.Remove(filepath.Join(e.VenGO_PATH, "lib"))
if err := link(); err != nil {
fmt.Println("while creating symlink:", err)
return err
}
} else {
fmt.Println("while creating symlink:", err)
return err
}
}
return nil
}
debug.FreeOSMemory()
os.RemoveAll(filepath.Join(cache.CacheDirectory(), "go1"))
})
})
})
Describe("AlreadyCompiled", func() {
It("Shoudl return true if the source has been compiled", func() {
os.MkdirAll(filepath.Join(cache.CacheDirectory(), "test1", "go", "bin"), 0755)
filename := filepath.Join(cache.CacheDirectory(), "test1", "go", "bin", "go")
Expect(ioutil.WriteFile(filename, []byte{}, 0644)).To(Succeed())
filename = filepath.Join(cache.CacheDirectory(), "test1", ".vengo-manifest")
Expect(ioutil.WriteFile(filename, []byte{}, 0644)).To(Succeed())
Expect(cache.AlreadyCompiled("test1")).To(BeTrue())
os.RemoveAll(filepath.Join(cache.CacheDirectory(), "test1"))
Expect(cache.AlreadyCompiled("test1")).To(BeFalse())
})
})
if RunSlowTests {
Describe("CacheDownload works as expected", func() {
Context("Passing a non valid Go version", func() {
It("Should fail and give back a descriptive error", func() {
err := cache.CacheDownload("1.0")
Expect(err).To(HaveOccurred())
Expect(err).To(Equal(fmt.Errorf(
"1.0 is not a VenGO supported version you must donwload and compile it yourself"),
))