feat: add build file and add commit hash and version in debug info

build.rs

@@ -0,0 +1,35 @@
+use std::process::Command;
+
+fn main() {
+    println!("cargo:rustc-env=GIT_COMMIT_HASH={}", git_commit_hash());
+    println!("cargo:rustc-env=GIT_TAG={}", git_tag());
+}
+
+fn git_commit_hash() -> String {
+    let commit_command = Command::new("git")
+        .args(&[
+            "rev-parse",
+            "HEAD"
+        ])
+        .output();
+
+    match commit_command {
+        Ok(out) => String::from_utf8(out.stdout).unwrap_or(String::from("unknown")),
+        Err(_) => String::from("unknown")
+    }
+}
+
+fn git_tag() -> String {
+    let tag_command = Command::new("git")
+        .args(&[
+            "describe",
+            "--tags",
+            "--abbrev=0"
+        ])
+        .output();
+
+    match tag_command {
+        Ok(out) => String::from_utf8(out.stdout).unwrap_or(String::from("unknown")),
+        Err(_) => String::from("unknown")
+    }
+}

src/main.rs

@@ -20,7 +20,10 @@ mod error;
 fn main() {
     let config = configuration::Config::from_file(&env::var("CONFIG").unwrap_or(String::from("./config.toml")));
     setup_logger(&config);
-    debug!("Config: {:#?}", &config);
+    trace!("Config: {:#?}", &config);
+
+    debug!("commit: {}", env!("GIT_COMMIT_HASH"));
+    debug!("version: {}", env!("GIT_TAG"));
 
     let input_files = files::get_files(&config.files.input_path)
         .into_iter()
@@ -99,7 +102,7 @@ fn setup_logger(config: &configuration::Config) {
         .size(10 * 1000)
         .roll_count(10)
         .time_format("%Y-%m-%d %H:%M:%S")
-        .level(if config.is_debug() { "debug" } else { "info" })
+        .level(if config.is_debug() { "trace" } else { "info" })
         .output_file()
         .output_console()
         .build();