Config: Add a version argument

Allow getting the program version from the command line.

2 files changed, 11 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
index 39a8158..f451ea5 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -6,6 +6,7 @@ use git2::{self, Repository};
 use thiserror::Error;
 
 use crate::owner_repo::{self, OwnerRepo};
+use crate::VERSION;
 
 
 /// Program-specific prefix for Git config values.
@@ -56,6 +57,7 @@ impl Config {
             "REMOTE",
         );
         opts.optflag("h", "help", "print this help menu");
+        opts.optflag("V", "version", "show the program version");
 
         let opt_matches = opts.parse(&args[1..])?;
 
@@ -65,6 +67,12 @@ impl Config {
             process::exit(exitcode::USAGE);
         }
 
+        if opt_matches.opt_present("V") {
+            println!("{}", VERSION);
+
+            process::exit(exitcode::OK);
+        }
+
         if opt_matches.free.is_empty() {
             print_usage(&opts, usage_brief);
 
diff --git a/src/lib.rs b/src/lib.rs
index e9038dc..76e6fd4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,3 +9,6 @@ mod suggestion;
 
 
 pub use suggestion::for_suggestion;
+
+
+const VERSION: &'static str = "0.1.0";