feat(volo-cli): init for generated codes as a git repo (#254)

Signed-off-by: Yu Li <[email protected]>

Cargo.toml

@@ -52,6 +52,7 @@ futures = "0.3"
 futures-util = "0.3"
 flate2 = "1"
 fxhash = "0.2"
+git2 = { version = "0.18", default-features = false }
 h2 = "0.3"
 heck = "0.4"
 hex = "0.4"

volo-build/Cargo.toml

@@ -23,6 +23,7 @@ pilota-build.workspace = true
 
 anyhow.workspace = true
 dirs.workspace = true
+git2.workspace = true
 heck.workspace = true
 itertools.workspace = true
 lazy_static.workspace = true

volo-build/src/util.rs

@@ -272,3 +272,28 @@ where
 
     Ok(r)
 }
+
+pub fn git_repo_init(path: &Path) -> anyhow::Result<()> {
+    // Check if we are in a git repo and the path to the new package is not an ignored path in that
+    // repo.
+    //
+    // Reference: https://github.com/rust-lang/cargo/blob/0.74.0/src/cargo/util/vcs.rs
+    fn in_git_repo(path: &Path) -> bool {
+        if let Ok(repo) = git2::Repository::discover(path) {
+            // Don't check if the working directory itself is ignored.
+            if repo.workdir().map_or(false, |workdir| workdir == path) {
+                true
+            } else {
+                !repo.is_path_ignored(path).unwrap_or(false)
+            }
+        } else {
+            false
+        }
+    }
+
+    if !in_git_repo(path) {
+        git2::Repository::init(path)?;
+    }
+
+    Ok(())
+}

volo-cli/src/init.rs

@@ -4,7 +4,7 @@ use clap::{value_parser, Parser};
 use volo_build::{
     config_builder::InitBuilder,
     model::{Entry, GitSource, Idl, Source, DEFAULT_FILENAME},
-    util::{get_repo_latest_commit_id, DEFAULT_CONFIG_FILE},
+    util::{get_repo_latest_commit_id, git_repo_init, DEFAULT_CONFIG_FILE},
 };
 
 use crate::command::CliCommand;
@@ -275,6 +275,9 @@ impl CliCommand for Init {
 
         let _ = Command::new("cargo").arg("fmt").arg("--all").output()?;
 
+        let cwd = std::env::current_dir()?;
+        git_repo_init(&cwd)?;
+
         Ok(())
     }
 }