vendor/semver/tests/node/mod.rs

   1 #![cfg(test_node_semver)]
   2
   3 use semver::Version;
   4 use std::fmt::{self, Display};
   5 use std::process::Command;
   6
   7 #[derive(Default, Eq, PartialEq, Hash, Debug)]
   8 pub(super) struct VersionReq(semver::VersionReq);
   9
  10 impl VersionReq {
  11     pub(super) const STAR: Self = VersionReq(semver::VersionReq::STAR);
  12
  13     pub(super) fn matches(&self, version: &Version) -> bool {
  14         let out = Command::new("node")
  15             .arg("-e")
  16             .arg(format!(
  17                 "console.log(require('semver').satisfies('{}', '{}'))",
  18                 version,
  19                 self.to_string().replace(',', ""),
  20             ))
  21             .output()
  22             .unwrap();
  23         if out.stdout == b"true\n" {
  24             true
  25         } else if out.stdout == b"false\n" {
  26             false
  27         } else {
  28             let s = String::from_utf8_lossy(&out.stdout) + String::from_utf8_lossy(&out.stderr);
  29             panic!("unexpected output: {}", s);
  30         }
  31     }
  32 }
  33
  34 impl Display for VersionReq {
  35     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
  36         Display::fmt(&self.0, formatter)
  37     }
  38 }
  39
  40 #[cfg_attr(not(no_track_caller), track_caller)]
  41 pub(super) fn req(text: &str) -> VersionReq {
  42     VersionReq(crate::util::req(text))
  43 }