fix(cli): make dynamic import errors catchable (denoland#8750)

Fixes denoland#6259

cli/disk_cache.rs

@@ -46,7 +46,7 @@ impl DiskCache {
  })
  }
 
- pub fn get_cache_filename(&self, url: &Url) -> PathBuf {
+ fn get_cache_filename(&self, url: &Url) -> Option<PathBuf> {
  let mut out = PathBuf::new();
 
  let scheme = url.scheme();
@@ -105,31 +105,25 @@ impl DiskCache {
 
  out = out.join(remaining_components);
  }
- scheme => {
- unimplemented!(
- "Don't know how to create cache name for scheme: {}\n Url: {}",
- scheme,
- url
- );
- }
+ _ => return None,
  };
 
- out
+ Some(out)
  }
 
  pub fn get_cache_filename_with_extension(
  &self,
  url: &Url,
  extension: &str,
- ) -> PathBuf {
- let base = self.get_cache_filename(url);
+ ) -> Option<PathBuf> {
+ let base = self.get_cache_filename(url)?;
 
  match base.extension() {
- None => base.with_extension(extension),
+ None => Some(base.with_extension(extension)),
  Some(ext) => {
  let original_extension = OsStr::to_str(ext).unwrap();
  let final_extension = format!("{}.{}", original_extension, extension);
- base.with_extension(final_extension)
+ Some(base.with_extension(final_extension))
  }
  }
  }
@@ -234,7 +228,7 @@ mod tests {
  for test_case in &test_cases {
  let cache_filename =
  cache.get_cache_filename(&Url::parse(test_case.0).unwrap());
- assert_eq!(cache_filename, PathBuf::from(test_case.1));
+ assert_eq!(cache_filename, Some(PathBuf::from(test_case.1)));
  }
  }
 
@@ -280,7 +274,7 @@ mod tests {
  &Url::parse(test_case.0).unwrap(),
  test_case.1
  ),
- PathBuf::from(test_case.2)
+ Some(PathBuf::from(test_case.2))
  )
  }
  }