feat: clap wrapper around sqlness (GreptimeTeam#2400)

* feat: wrapped sqlness with clap to provide nice interface

* fix: added spaces and changed -f flag to bool

tests/runner/Cargo.toml

@@ -6,6 +6,7 @@ license.workspace = true
 
 [dependencies]
 async-trait = "0.1"
+clap = { version = "4.0", features = ["derive"] }
 client = { workspace = true }
 common-base = { workspace = true }
 common-error = { workspace = true }

tests/runner/src/main.rs

@@ -12,31 +12,51 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::path::PathBuf;
+
+use clap::Parser;
 use env::Env;
 use sqlness::{ConfigBuilder, Runner};
 
 mod env;
 mod util;
 
+#[derive(Parser, Debug)]
+#[clap(author, version, about, long_about = None)]
+/// SQL Harness for GrepTimeDB
+struct Args {
+    /// Directory of test cases
+    #[clap(short, long)]
+    case_dir: Option<PathBuf>,
+
+    /// Fail this run as soon as one case fails if true
+    #[arg(short, long, default_value = "false")]
+    fail_fast: bool,
+
+    /// Environment Configuration File
+    #[clap(short, long, default_value = "config.toml")]
+    env_config_file: String,
+
+    /// Name of test cases to run. Accept as a regexp.
+    #[clap(short, long, default_value = ".*")]
+    test_filter: String,
+}
+
 #[tokio::main]
 async fn main() {
-    let mut args: Vec<String> = std::env::args().collect();
-    let test_filter = if args.len() > 1 {
-        args.pop().unwrap()
-    } else {
-        "".to_string()
-    };
+    let args = Args::parse();
 
     #[cfg(windows)]
     let data_home = std::env::temp_dir();
     #[cfg(not(windows))]
     let data_home = std::path::PathBuf::from("/tmp");
 
     let config = ConfigBuilder::default()
-        .case_dir(util::get_case_dir())
-        .fail_fast(false)
-        .test_filter(test_filter)
+        .case_dir(util::get_case_dir(args.case_dir))
+        .fail_fast(args.fail_fast)
+        .test_filter(args.test_filter)
         .follow_links(true)
+        .env_config_file(args.env_config_file)
         .build()
         .unwrap();
     let runner = Runner::new(config, Env::new(data_home));

tests/runner/src/util.rs

@@ -62,15 +62,20 @@ where
 
 /// Get the dir of test cases. This function only works when the runner is run
 /// under the project's dir because it depends on some envs set by cargo.
-pub fn get_case_dir() -> String {
-    // retrieve the manifest runner (./tests/runner)
-    let mut runner_crate_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
-
-    // change directory to cases' dir from runner's (should be runner/../cases)
-    let _ = runner_crate_path.pop();
-    runner_crate_path.push("cases");
+pub fn get_case_dir(case_dir: Option<PathBuf>) -> String {
+    let runner_path = match case_dir {
+        Some(path) => path,
+        None => {
+            // retrieve the manifest runner (./tests/runner)
+            let mut runner_crate_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+            // change directory to cases' dir from runner's (should be runner/../cases)
+            let _ = runner_crate_path.pop();
+            runner_crate_path.push("cases");
+            runner_crate_path
+        }
+    };
 
-    runner_crate_path.into_os_string().into_string().unwrap()
+    runner_path.into_os_string().into_string().unwrap()
 }
 
 /// Get the dir that contains workspace manifest (the top-level Cargo.toml).