// NewRenderer returns a Renderer for the given shell, OS, or distro name.
func NewRenderer(name string) (Renderer, error) {
if name == "" {
name = runtime.GOOS
} else {
name = strings.ToLower(name)
}
// Try known shell names first.
switch name {
case "bash":
return &BashRenderer{}, nil
case "ps", "powershell":
return &PowershellRenderer{}, nil
case "cmd", "batch", "bat":
return &WinCmdRenderer{}, nil
}
// Fall back to operating systems.
switch {
case name == "windows":
return &PowershellRenderer{}, nil
case utils.OSIsUnix(name):
return &BashRenderer{}, nil
}
// Finally try distros.
switch name {
case "ubuntu":
return &BashRenderer{}, nil
}
return nil, errors.NotFoundf("renderer for %q", name)
}
func (osSuite) TestOSIsUnixKnown(c *gc.C) {
for _, os := range utils.OSUnix {
c.Logf("checking %q", os)
isUnix := utils.OSIsUnix(os)
c.Check(isUnix, jc.IsTrue)
}
}
// NewRenderer returns a Renderer for the given os.
func NewRenderer(os string) (Renderer, error) {
if os == "" {
os = runtime.GOOS
}
os = strings.ToLower(os)
switch {
case os == utils.OSWindows:
return &WindowsRenderer{}, nil
case utils.OSIsUnix(os):
return &UnixRenderer{}, nil
case os == "ubuntu":
return &UnixRenderer{}, nil
default:
return nil, errors.NotFoundf("renderer for %q", os)
}
}
func (osSuite) TestOSIsUnixUnknown(c *gc.C) {
isUnix := utils.OSIsUnix("<unknown OS>")
c.Check(isUnix, jc.IsFalse)
}
func (osSuite) TestOSIsUnixWindows(c *gc.C) {
isUnix := utils.OSIsUnix("windows")
c.Check(isUnix, jc.IsFalse)
}