Git branch flow improvements (#370)

crates/yaak-git/src/clone.rs

@@ -0,0 +1,53 @@
+use crate::binary::new_binary_command;
+use crate::error::Error::GenericError;
+use crate::error::Result;
+use log::info;
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::Path;
+use ts_rs::TS;
+
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, TS)]
+#[serde(rename_all = "snake_case", tag = "type")]
+#[ts(export, export_to = "gen_git.ts")]
+pub enum CloneResult {
+    Success,
+    Cancelled,
+    NeedsCredentials { url: String, error: Option<String> },
+}
+
+pub async fn git_clone(url: &str, dir: &Path) -> Result<CloneResult> {
+    let parent = dir.parent().ok_or_else(|| GenericError("Invalid clone directory".to_string()))?;
+    fs::create_dir_all(parent)
+        .map_err(|e| GenericError(format!("Failed to create directory: {e}")))?;
+    let mut cmd = new_binary_command(parent).await?;
+    cmd.args(["clone", url]).arg(dir).env("GIT_TERMINAL_PROMPT", "0");
+
+    let out =
+        cmd.output().await.map_err(|e| GenericError(format!("failed to run git clone: {e}")))?;
+
+    let stdout = String::from_utf8_lossy(&out.stdout);
+    let stderr = String::from_utf8_lossy(&out.stderr);
+    let combined = format!("{}{}", stdout, stderr);
+    let combined_lower = combined.to_lowercase();
+
+    info!("Cloned status={}: {combined}", out.status);
+
+    if !out.status.success() {
+        // Check for credentials error
+        if combined_lower.contains("could not read") {
+            return Ok(CloneResult::NeedsCredentials { url: url.to_string(), error: None });
+        }
+        if combined_lower.contains("unable to access")
+            || combined_lower.contains("authentication failed")
+        {
+            return Ok(CloneResult::NeedsCredentials {
+                url: url.to_string(),
+                error: Some(combined.to_string()),
+            });
+        }
+        return Err(GenericError(format!("Failed to clone: {}", combined.trim())));
+    }
+
+    Ok(CloneResult::Success)
+}