Merge pull request #8 from jhheider/fix-caret-0

fix range ^0

cli/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "semverator"
-version = "0.6.0"
+version = "0.7.0"
 edition = "2021"
 license = "Apache-2.0"
 readme = "../README.md"
@@ -13,7 +13,7 @@ categories = ["command-line-utilities"]
 [dependencies]
 anyhow = "1.0.75"
 clap = { version = '4.4.2', features = ['cargo'] }
-libsemverator = { path = "../lib", version = "0.6.0" }
+libsemverator = { path = "../lib", version = "0.7.0" }
 
 [lints.rust]
 unexpected_cfgs = { level = "allow", check-cfg = ['cfg(tarpaulin_include)'] }

lib/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "libsemverator"
-version = "0.6.0"
+version = "0.7.0"
 edition = "2021"
 license = "Apache-2.0"
 readme = "../README.md"

lib/src/range/parse.rs

@@ -47,7 +47,17 @@ impl Constraint {
             return Ok(Constraint::Contiguous(v1, v2));
         }
 
+        // ^0 is a special case, in that it doesn't work like
+        // ^0.x or ^0.x.y, but rather like any other ^x
+        if constraint == "^0" {
+            return Ok(Constraint::Contiguous(
+                Semver::parse("0.0.0")?,
+                Semver::parse("1.0.0")?,
+            ));
+        }
+
         let re = Regex::new(r"^([~=<^])(.+)$")?;
+
         if let Some(cap) = re.captures(constraint) {
             return match cap.get(1).context("invalid character")?.as_str() {
                 "^" => {

lib/src/tests/range.rs

@@ -90,6 +90,16 @@ fn test_satisfies() -> Result<()> {
     assert!(rg.satisfies(&sg));
     assert!(!rg.satisfies(&sh));
 
+    let ri = Range::parse("^0")?;
+
+    let si = Semver::parse("0.0.5")?;
+    let sj = Semver::parse("0.21.1")?;
+    let sk = Semver::parse("1.0.0")?;
+
+    assert!(ri.satisfies(&si));
+    assert!(ri.satisfies(&sj));
+    assert!(!ri.satisfies(&sk));
+
     Ok(())
 }