Fix binary tool version check

Cargo.toml

@@ -2,7 +2,10 @@
 name = "wasm-pack"
 description = "📦✨ your favorite rust -> wasm workflow tool!"
 version = "0.12.1"
-authors = ["Ashley Williams <ashley666ashley@gmail.com>", "Jesper Håkansson <jesper@jesperh.se>"]
+authors = [
+    "Ashley Williams <ashley666ashley@gmail.com>",
+    "Jesper Håkansson <jesper@jesperh.se>",
+]
 repository = "https://github.com/rustwasm/wasm-pack.git"
 license = "MIT OR Apache-2.0"
 edition = "2021"
@@ -16,21 +19,23 @@ atty = "0.2.14"
 binary-install = "0.2.0"
 cargo_metadata = "0.15.2"
 chrono = "0.4.23"
+clap = { version = "4.2.5", features = ["derive"] }
 console = "0.15.5"
 dialoguer = "0.10.3"
 env_logger = { version = "0.10.0", default-features = false }
 glob = "0.3.1"
 human-panic = "1.0.3"
+lazy_static = "1.4.0"
 log = "0.4.17"
 parking_lot = "0.12.1"
+regex = "1.9.5"
 semver = "1.0.16"
 serde = "1.0.152"
 serde_derive = "1.0.152"
 serde_ignored = "0.1.7"
 serde_json = "1.0.91"
 siphasher = "0.3.10"
 strsim = "0.10.0"
-clap = { version = "4.2.5", features = ["derive"] }
 toml = "0.7.3"
 ureq = { version = "2.6.2", features = ["json"] }
 walkdir = "2.3.2"
@@ -42,4 +47,3 @@ lazy_static = "1.4.0"
 predicates = "3.0.3"
 serial_test = "2.0.0"
 tempfile = "3.3.0"
-

src/install/krate.rs

@@ -1,5 +1,6 @@
 use crate::install::Tool;
 use anyhow::Result;
+use log::debug;
 use serde::Deserialize;
 const VERSION: Option<&str> = option_env!("CARGO_PKG_VERSION");
 
@@ -25,6 +26,10 @@ impl Krate {
             .call()?;
 
         let kr: KrateResponse = res.into_json()?;
+        debug!(
+            "Latest `{name}` version on crates.io is {}",
+            kr.krate.max_version
+        );
         Ok(kr.krate)
     }
 }

src/install/mod.rs

@@ -7,8 +7,10 @@ use crate::install;
 use crate::PBAR;
 use anyhow::{anyhow, bail, Context, Result};
 use binary_install::{Cache, Download};
+use lazy_static::lazy_static;
 use log::debug;
 use log::{info, warn};
+use regex::Regex;
 use std::env;
 use std::fs;
 use std::path::Path;
@@ -99,7 +101,7 @@ pub fn check_version(tool: &Tool, path: &Path, expected_version: &str) -> Result
 
     let v = get_cli_version(tool, path)?;
     info!(
-        "Checking installed `{}` version == expected version: {} == {}",
+        r#"Checking installed `{}` version == expected version: "{}" == "{}""#,
         tool, v, &expected_version
     );
     Ok(v == expected_version)
@@ -110,13 +112,24 @@ pub fn get_cli_version(tool: &Tool, path: &Path) -> Result<String> {
     let mut cmd = Command::new(path);
     cmd.arg("--version");
     let stdout = child::run_capture_stdout(cmd, tool)?;
-    let version = stdout.trim().split_whitespace().nth(1);
-    match version {
+
+    match extract_version(&stdout) {
         Some(v) => Ok(v.to_string()),
         None => bail!("Something went wrong! We couldn't determine your version of the wasm-bindgen CLI. We were supposed to set that up for you, so it's likely not your fault! You should file an issue: https://github.com/rustwasm/wasm-pack/issues/new?template=bug_report.md.")
     }
 }
 
+/// Extract the version number from the version string printed by a binary.
+pub fn extract_version(raw: &str) -> Option<&str> {
+    lazy_static! {
+        static ref VERSION_EXTRACTOR: Regex = Regex::new(r"(^|\s)(\d+(\.\d+)*)($|\s)").unwrap();
+    }
+    VERSION_EXTRACTOR
+        .captures(raw)
+        .and_then(|captures| captures.get(2))
+        .map(|m| m.as_str())
+}
+
 /// Downloads a precompiled copy of the tool, if available.
 pub fn download_prebuilt(
     tool: &Tool,

tests/all/download.rs

@@ -1,4 +1,23 @@
-use wasm_pack::install::{self, Arch, Os, Tool};
+use wasm_pack::install::{self, extract_version, Arch, Os, Tool};
+
+#[test]
+fn can_extract_cli_version() {
+    let tests = [
+        ("cargo-generate 0.18.4", Some("0.18.4")),
+        ("wasm-bindgen 0.2.87", Some("0.2.87")),
+        ("wasm-opt version 116", Some("116")),
+        ("cargo-generate 1", Some("1")), // missing minor & patch version
+        ("cargo-generate 0.18", Some("0.18")), // missing patch version
+        ("cargo generate 0.18.4", Some("0.18.4")), // space-separated subcommand
+        ("wasm-bindgen 0.2.87 (deadbeef)", Some("0.2.87")), // with commit hash
+        ("69.420", Some("69.420")),      // raw version
+        ("wasm-opt version", None),      // version missing
+    ];
+
+    for (i, o) in tests {
+        assert_eq!(extract_version(i), o);
+    }
+}
 
 #[test]
 #[cfg(any(