Example #1
0
func (*SymlinkSuite) TestIsSymlinkFileDoesNotExist(c *gc.C) {
	dir := c.MkDir()

	target := filepath.Join(dir, "file")

	isSymlink, err := symlink.IsSymlink(target)
	c.Assert(err, gc.ErrorMatches, ".*"+utils.NoSuchFileErrRegexp)
	c.Assert(isSymlink, jc.IsFalse)
}
Example #2
0
func (*SymlinkSuite) TestIsSymlinkFalseFolder(c *gc.C) {
	target, err := symlink.GetLongPathAsString(c.MkDir())
	c.Assert(err, gc.IsNil)

	_, err = os.Stat(target)
	c.Assert(err, gc.IsNil)

	isSymlink, err := symlink.IsSymlink(target)
	c.Assert(err, gc.IsNil)
	c.Assert(isSymlink, jc.IsFalse)
}
Example #3
0
func (*SymlinkSuite) TestIsSymlinkFalseFile(c *gc.C) {
	dir := c.MkDir()

	target := filepath.Join(dir, "file")
	err := ioutil.WriteFile(target, []byte("TOP SECRET"), 0644)
	c.Assert(err, gc.IsNil)

	_, err = os.Stat(target)
	c.Assert(err, gc.IsNil)

	isSymlink, err := symlink.IsSymlink(target)
	c.Assert(err, gc.IsNil)
	c.Assert(isSymlink, jc.IsFalse)
}
Example #4
0
func (*SymlinkSuite) TestIsSymlinkFolder(c *gc.C) {
	target, err := symlink.GetLongPathAsString(c.MkDir())
	c.Assert(err, gc.IsNil)

	link := filepath.Join(target, "link")

	_, err = os.Stat(target)
	c.Assert(err, gc.IsNil)

	err = symlink.New(target, link)
	c.Assert(err, gc.IsNil)

	isSymlink, err := symlink.IsSymlink(link)
	c.Assert(err, gc.IsNil)
	c.Assert(isSymlink, jc.IsTrue)
}
Example #5
0
func (*SymlinkSuite) TestIsSymlinkFile(c *gc.C) {
	dir, err := symlink.GetLongPathAsString(c.MkDir())
	c.Assert(err, gc.IsNil)

	target := filepath.Join(dir, "file")
	err = ioutil.WriteFile(target, []byte("TOP SECRET"), 0644)
	c.Assert(err, gc.IsNil)

	link := filepath.Join(dir, "link")

	_, err = os.Stat(target)
	c.Assert(err, gc.IsNil)

	err = symlink.New(target, link)
	c.Assert(err, gc.IsNil)

	isSymlink, err := symlink.IsSymlink(link)
	c.Assert(err, gc.IsNil)
	c.Assert(isSymlink, jc.IsTrue)
}
Example #6
0
// EnsureSymlinks creates a symbolic link to jujuc within dir for each
// hook command. If the commands already exist, this operation does nothing.
// If dir is a symbolic link, it will be dereferenced first.
func EnsureSymlinks(dir string) (err error) {
	logger.Infof("ensure jujuc symlinks in %s", dir)
	defer func() {
		if err != nil {
			err = errors.Annotatef(err, "cannot initialize hook commands in %q", dir)
		}
	}()
	isSymlink, err := symlink.IsSymlink(dir)
	if err != nil {
		return err
	}
	if isSymlink {
		link, err := symlink.Read(dir)
		if err != nil {
			return err
		}
		if !filepath.IsAbs(link) {
			logger.Infof("%s is relative", link)
			link = filepath.Join(filepath.Dir(dir), link)
		}
		dir = link
		logger.Infof("was a symlink, now looking at %s", dir)
	}

	jujudPath := filepath.Join(dir, names.Jujud)
	logger.Debugf("jujud path %s", jujudPath)
	for _, name := range CommandNames() {
		// The link operation fails when the target already exists,
		// so this is a no-op when the command names already
		// exist.
		err := symlink.New(jujudPath, filepath.Join(dir, name))
		if err != nil && !os.IsExist(err) {
			return err
		}
	}
	return nil
}