Merge pull request #254 from Luap99/build

Drop vergen dependency

Author: openshift-merge-robot

Cargo.lock

@@ -38,5 +38,4 @@ sha2 = "0.10.1"
 netlink-packet-route = "0.11"
 
 [build-dependencies]
-vergen = { version = "6.0.2", default-features = false, features = ["build", "rustc", "git"] }
-anyhow = "1.0"
+chrono = "*"

Cargo.toml

@@ -1,7 +1,26 @@
-use anyhow::Result;
-use vergen::{vergen, Config};
+use chrono::Utc;
+use std::process::Command;
 
-fn main() -> Result<()> {
+fn main() {
     // Generate the default 'cargo:' instruction output
-    vergen(Config::default())
+    println!("cargo:rerun-if-changed=build.rs");
+
+    // get timestamp
+    let now = Utc::now();
+    println!("cargo:rustc-env=BUILD_TIMESTAMP={}", now.to_rfc3339());
+
+    // get rust target triple from TARGET env
+    println!(
+        "cargo:rustc-env=BUILD_TARGET={}",
+        std::env::var("TARGET").unwrap()
+    );
+
+    // get git commit
+    let command = Command::new("git").args(&["rev-parse", "HEAD"]).output();
+    let commit = match command {
+        Ok(output) => String::from_utf8(output.stdout).unwrap(),
+        // if error, e.g. build from source with git repo, just show empty string
+        Err(_) => "".to_string(),
+    };
+    println!("cargo:rustc-env=GIT_COMMIT={}", commit);
 }

build.rs

@@ -17,10 +17,10 @@ struct Info {
 impl Version {
     pub fn exec(&self) -> Result<(), Box<dyn Error>> {
         let info = Info {
-            version: env!("VERGEN_BUILD_SEMVER"),
-            commit: env!("VERGEN_GIT_SHA"),
-            build_time: env!("VERGEN_BUILD_TIMESTAMP"),
-            target: env!("VERGEN_RUSTC_HOST_TRIPLE"),
+            version: env!("CARGO_PKG_VERSION"),
+            commit: env!("GIT_COMMIT"),
+            build_time: env!("BUILD_TIMESTAMP"),
+            target: env!("BUILD_TARGET"),
         };
 
         let out = serde_json::to_string_pretty(&info)?;

src/commands/version.rs

@@ -5,7 +5,7 @@ use netavark::commands::teardown;
 use netavark::commands::version;
 
 #[derive(Parser, Debug)]
-#[clap(version = env!("VERGEN_BUILD_SEMVER"))]
+#[clap(version = env!("CARGO_PKG_VERSION"))]
 struct Opts {
     /// Instead of reading from STDIN, read the configuration to be applied from the given file.
     #[clap(short, long)]