WIP start adding git support

src/git.rs

@@ -0,0 +1,47 @@
+#[derive(Debug, thiserror::Error)]
+pub enum GitError {
+    #[error(transparent)]
+    StdIoError(#[from] std::io::Error),
+    #[error("Oops, something went wrong")]
+    Oops,
+}
+
+pub fn checkout_branch_in_worktree(
+    branch: &str,
+    worktree_dir: &std::path::Path,
+) -> Result<(), GitError> {
+    let result = std::process::Command::new("git")
+        .args(["worktree", "add", &worktree_dir.to_string_lossy(), branch])
+        .output()?;
+    if !result.status.success() {
+        println!("stdout: {}", std::str::from_utf8(&result.stdout).unwrap());
+        println!("stderr: {}", std::str::from_utf8(&result.stderr).unwrap());
+        return Err(GitError::Oops);
+    }
+    Ok(())
+}
+
+pub fn remove_worktree(worktree_dir: &std::path::Path) -> Result<(), GitError> {
+    std::fs::remove_dir_all(worktree_dir)?;
+    let result = std::process::Command::new("git")
+        .args(["worktree", "prune"])
+        .output()?;
+    if !result.status.success() {
+        println!("stdout: {}", std::str::from_utf8(&result.stdout).unwrap());
+        println!("stderr: {}", std::str::from_utf8(&result.stderr).unwrap());
+        return Err(GitError::Oops);
+    }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn worktree() {
+        let worktree_dir = std::path::Path::new("/tmp/boo");
+        checkout_branch_in_worktree("main", worktree_dir).unwrap();
+        remove_worktree(worktree_dir).unwrap();
+    }
+}

src/lib.rs

@@ -1,2 +1,3 @@
+pub mod git;
 pub mod issue;
 pub mod issues;