New clap arg to output the given semver to stdout

Cargo.lock

@@ -53,7 +53,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-semver"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "clap",
  "semver",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cargo-semver"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 keywords = ["cargo", "semver"]
 categories = [

src/main.rs

@@ -1,6 +1,6 @@
-use std::fs;
+use std::{default, fs};
 
-use clap::{command, Parser};
+use clap::{command, Parser, ValueEnum};
 use semver::Version;
 use toml_edit::{value, DocumentMut};
 
@@ -11,6 +11,13 @@ enum CargoCli {
 	Semver(SemverArgs),
 }
 
+#[derive(Clone, Debug, PartialEq, Eq, ValueEnum)]
+pub enum VerType {
+	Major,
+	Minor,
+	Patch,
+}
+
 #[derive(Clone, Debug, Parser, PartialEq, Eq)]
 #[command(version, about, long_about = None)]
 pub struct SemverArgs {
@@ -22,15 +29,14 @@ pub struct SemverArgs {
 
 	#[arg(long("bump-major"), default_value_t = false)]
 	pub bump_major: bool,
+
+	#[arg(long("get"), value_enum)]
+	pub get: Option<VerType>,
 }
 
 fn main() {
 	let CargoCli::Semver(args) = CargoCli::parse();
 
-	if !args.bump_major && !args.bump_minor && !args.bump_patch {
-		panic!("Specify which version to bump by using --bump-patch --bump-minor or --bump-major");
-	}
-
 	let toml = fs::read_to_string("./Cargo.toml").unwrap();
 	let mut doc = toml.parse::<DocumentMut>().expect("invalid doc");
 
@@ -38,6 +44,21 @@ fn main() {
 	let semver = semver.trim();
 	let mut semver = Version::parse(semver).expect("invalid semver");
 
+	if let Some(ver_type) = args.get {
+		let ver = match ver_type {
+			VerType::Major => semver.major,
+			VerType::Minor => semver.minor,
+			VerType::Patch => semver.patch,
+		};
+
+		print!("{ver}");
+		std::process::exit(0);
+	}
+
+	if !args.bump_major && !args.bump_minor && !args.bump_patch {
+		panic!("Specify which version to bump by using --bump-patch --bump-minor or --bump-major");
+	}
+
 	if args.bump_patch {
 		semver.patch += 1;
 	}