Win: allow aliases in commands

- `rig rm`
- `rig rstudio`
- `rig system *`

src/windows.rs

@@ -263,7 +263,7 @@ fn set_cloud_mirror(vers: Option<Vec<String>>) -> Result<(), Box<dyn Error>> {
  info!("Setting default CRAN mirror");
 
  for ver in vers {
- check_installed(&ver)?;
+ let ver = check_installed(&ver)?;
  let path = Path::new(R_ROOT).join("R-".to_string() + ver.as_str());
  let profile = path.join("library/base/R/Rprofile".to_string());
  if !profile.exists() {
@@ -296,7 +296,7 @@ options(repos = c(RSPM="https://packagemanager.rstudio.com/all/latest", getOptio
 "#;
 
  for ver in vers {
- check_installed(&ver)?;
+ let ver = check_installed(&ver)?;
  let path = Path::new(R_ROOT).join("R-".to_string() + ver.as_str());
  let profile = path.join("library/base/R/Rprofile".to_string());
  if !profile.exists() {
@@ -324,10 +324,10 @@ pub fn sc_rm(args: &ArgMatches) -> Result<(), Box<dyn Error>> {
  rm_rtools(verstr)?;
  continue;
  }
- check_installed(&verstr)?;
+ let ver = check_installed(&verstr)?;
 
  if let Some(ref default) = default {
- if default == ver {
+ if default == &ver {
  warn!("Removing default version, set new default with \
  <bold>rig default <version></>");
  match unset_default() {
@@ -337,7 +337,7 @@ pub fn sc_rm(args: &ArgMatches) -> Result<(), Box<dyn Error>> {
  }
  }
 
- let ver = "R-".to_string() + ver;
+ let ver = "R-".to_string() + &ver;
  let dir = Path::new(R_ROOT);
  let dir = dir.join(ver);
  info!("Removing {}", dir.display());
@@ -587,7 +587,7 @@ pub fn sc_get_list() -> Result<Vec<String>, Box<dyn Error>> {
 }
 
 pub fn sc_set_default(ver: &str) -> Result<(), Box<dyn Error>> {
- check_installed(&ver.to_string())?;
+ let ver = check_installed(&ver.to_string())?;
  escalate("setting the default R version")?;
  let base = Path::new(R_ROOT);
  let bin = base.join("bin");
@@ -862,7 +862,7 @@ pub fn sc_rstudio_(version: Option<&str>, project: Option<&str>, arg: Option<&Os
 
  if let Some(version) = version {
  let ver = version.to_string();
- check_installed(&ver)?;
+ let ver = check_installed(&ver)?;
  update_registry_default_to(&ver)?;
  }