feat: added --version flag

1 files changed, 13 insertions, 0 deletions

diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..671cc39
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,13 @@
+use std::process::Command;
+fn main() {
+    // Tell Cargo to rerun this build script if HEAD changes
+    println!("cargo:rerun-if-changed=.git/HEAD");
+    println!("cargo:rerun-if-changed=.git/refs/tags");
+
+    let output = Command::new("git")
+        .args(&["describe", "--tags", "--dirty", "--always"])
+        .output()
+        .unwrap();
+    let git_version = String::from_utf8(output.stdout).unwrap();
+    println!("cargo:rustc-env=GIT_VERSION={}", git_version.trim());
+}