use docdexd::diff::{collect_git_diff, DiffRequest, DiffScope};
use std::error::Error;
use std::fs;
use std::path::Path;
use std::process::Command;
use tempfile::TempDir;
fn git_available() -> bool {
Command::new("git")
.arg("--version")
.output()
.map(|output| output.status.success())
.unwrap_or(false)
}
fn run_git(repo_root: &Path, args: &[&str]) -> Result<(), Box<dyn Error>> {
let status = Command::new("git")
.current_dir(repo_root)
.args(args)
.status()?;
if !status.success() {
return Err(format!("git {:?} failed", args).into());
}
Ok(())
}
fn init_repo(repo_root: &Path) -> Result<(), Box<dyn Error>> {
run_git(repo_root, &["init"])?;
run_git(repo_root, &["config", "user.email", "test@example.com"])?;
run_git(repo_root, &["config", "user.name", "Docdex Test"])?;
Ok(())
}
#[test]
fn collect_git_diff_supports_scopes_and_paths() -> Result<(), Box<dyn Error>> {
if !git_available() {
eprintln!("skipping diff test: git not available");
return Ok(());
}
let repo = TempDir::new()?;
let repo_root = repo.path();
init_repo(repo_root)?;
let file_path = repo_root.join("file.txt");
fs::write(&file_path, "one\ntwo\nthree\n")?;
run_git(repo_root, &["add", "file.txt"])?;
run_git(repo_root, &["commit", "-m", "initial"])?;
fs::write(&file_path, "one\ntwo changed\nthree\n")?;
let working_changes = collect_git_diff(
repo_root,
&DiffRequest::working_tree().with_paths(vec![Path::new("file.txt").into()]),
)?;
assert_eq!(working_changes.len(), 1);
assert_eq!(working_changes[0].path, "file.txt");
assert_eq!(working_changes[0].ranges.len(), 1);
assert_eq!(working_changes[0].ranges[0].start, 2);
assert_eq!(working_changes[0].ranges[0].end, 2);
run_git(repo_root, &["add", "file.txt"])?;
let staged_changes = collect_git_diff(repo_root, &DiffRequest::staged())?;
assert_eq!(staged_changes.len(), 1);
assert_eq!(staged_changes[0].path, "file.txt");
run_git(repo_root, &["commit", "-m", "update"])?;
let range_changes = collect_git_diff(
repo_root,
&DiffRequest {
scope: DiffScope::Range {
base: "HEAD~1".to_string(),
head: "HEAD".to_string(),
},
paths: Vec::new(),
},
)?;
assert_eq!(range_changes.len(), 1);
assert_eq!(range_changes[0].path, "file.txt");
Ok(())
}
