From 0c242a9eafca865be7ba7a9983b5331b7d28155f Mon Sep 17 00:00:00 2001
From: Syed Ahkam <smahkam57@gmail.com>
Date: Fri, 11 Aug 2023 01:04:51 +0530
Subject: [PATCH] feat: impl build command

---
 Cargo.lock            | 18 ++++++++++++++++++
 Cargo.toml            |  3 ++-
 src/commands/build.rs | 37 +++++++++++++++++++++++++++++++++++++
 src/commands/mod.rs   |  1 +
 src/main.rs           |  2 ++
 src/utils.rs          | 14 ++++++++++++++
 6 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 src/commands/build.rs

diff --git a/Cargo.lock b/Cargo.lock
index bf899b0..e1bafa8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -51,6 +51,7 @@ dependencies = [
  "dialoguer",
  "env_logger",
  "guidon",
+ "which",
 ]
 
 [[package]]
@@ -326,6 +327,12 @@ dependencies = [
  "crypto-common",
 ]
 
+[[package]]
+name = "either"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+
 [[package]]
 name = "encode_unicode"
 version = "0.3.6"
@@ -1135,6 +1142,17 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "which"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2441c784c52b289a054b7201fc93253e288f094e2f4be9058343127c4226a269"
+dependencies = [
+ "either",
+ "libc",
+ "once_cell",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index d64a101..88176c9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,4 +17,5 @@ path = "src/main.rs"
 clap = { version = "3.2.23", features = ["default", "derive"] } 
 guidon = "0.4.1"
 env_logger = "0.10.0"
-dialoguer = "0.10.4"
\ No newline at end of file
+dialoguer = "0.10.4"
+which = "4.4.0"
diff --git a/src/commands/build.rs b/src/commands/build.rs
new file mode 100644
index 0000000..24feab5
--- /dev/null
+++ b/src/commands/build.rs
@@ -0,0 +1,37 @@
+use std::process::Command;
+
+use clap::{
+    Parser,
+    ArgAction
+};
+
+use crate::utils::find_gradle;
+
+#[derive(Parser, Debug)]
+pub struct Build {
+    /// Should build in release mode
+    #[clap(short, long, default_value="false", action = ArgAction::SetTrue)]
+    release: bool
+}
+
+pub fn handle(args: Build) {
+    let gradle_path = find_gradle().expect("ERROR: Gradle not found on system");
+
+    // Decide gradle subcommand to use
+    let cmd = match args.release {
+        true => "assembleRelease",
+        false => "assembleDebug"
+    };
+
+    // Invoke gradle as child process
+    println!("Invoking Gradle: {}", gradle_path);
+    let status = Command::new(gradle_path)
+        .arg(cmd)
+        .status()
+        .unwrap();
+
+    match status.success() {
+        true => println!("Success!"),
+        false => println!("Failed while executing Gradle.")
+    }
+}
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index c5fb369..7eb33f3 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -1 +1,2 @@
 pub mod create;
+pub mod build;
diff --git a/src/main.rs b/src/main.rs
index bb23edb..2175652 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,6 +16,7 @@ struct Cli {
 #[derive(Subcommand, Debug)]
 enum SubCommand {
     Create(commands::create::Create),
+    Build(commands::build::Build)
 }
 
 fn main() {
@@ -26,5 +27,6 @@ fn main() {
 
     match args.command {
         SubCommand::Create(args) => commands::create::handle(args),
+        SubCommand::Build(args) => commands::build::handle(args)
     }
 }
diff --git a/src/utils.rs b/src/utils.rs
index 6c0953b..3c7f39e 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,6 +1,20 @@
+use which::which;
+
 pub fn prompt_for_input(prompt: &str) -> String {
     dialoguer::Input::<String>::with_theme(&dialoguer::theme::ColorfulTheme::default())
         .with_prompt(prompt)
         .interact_text()
         .unwrap()
 }
+
+pub fn find_gradle() -> Option<String> {
+    if std::path::Path::new("./gradlew").exists() {
+        return Some("./gradlew".to_owned());
+    }
+
+    if which("gradle").is_ok() {
+        return Some("gradle".to_owned());
+    }
+
+    None
+}