func (appfiles ApplicationFiles) copyFile(srcPath string, dstPath string, fileMode os.FileMode) error {
dst, err := fileutils.Create(dstPath)
if err != nil {
return err
}
defer dst.Close()
if runtime.GOOS != "windows" {
err = dst.Chmod(fileMode)
if err != nil {
return err
}
}
src, err := os.Open(srcPath)
if err != nil {
return err
}
defer src.Close()
_, err = io.Copy(dst, src)
if err != nil {
return err
}
return nil
}
fileBytes, err := ioutil.ReadFile(fd.Name())
Expect(err).NotTo(HaveOccurred())
Expect(string(fileBytes)).To(Equal("Never Gonna Give You Up"))
})
})
Describe("Create", func() {
It("truncates an existing file", func() {
tmpFile, err := ioutil.TempFile("", "create_test")
Expect(err).NotTo(HaveOccurred())
_, err = tmpFile.WriteString("Never Gonna Give You Up")
Expect(err).NotTo(HaveOccurred())
filePath := tmpFile.Name()
tmpFile.Close()
fd, err := fileutils.Create(filePath)
Expect(err).NotTo(HaveOccurred())
fileBytes, err := ioutil.ReadAll(fd)
Expect(err).NotTo(HaveOccurred())
Expect(len(fileBytes)).To(Equal(0))
fd.Close()
})
It("creates a non-existing file and all intermediary directories", func() {
fd, err := ioutil.TempFile("", "create_test")
Expect(err).NotTo(HaveOccurred())
_, err = fd.WriteString("Never Gonna Let You Down")
Expect(err).NotTo(HaveOccurred())
fd.Close()
