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mod git;
use std::fs::{create_dir_all, remove_file, write, File};
use std::io::{Error, ErrorKind::Other, Read, Result};
use std::path::Path;
use git::Git;
pub trait Remote {
fn can_handle(&self, remote: &str) -> bool;
fn sync_up(&self, remote: &str, directory: &Path) -> Result<()>;
fn sync_down(&self, remote: &str, directory: &Path) -> Result<()>;
}
pub fn add(config_directory: &Path, remote_config: &Path, remote: &str) -> Result<()> {
create_dir_all(config_directory)?;
write(remote_config, remote)?;
Ok(())
}
pub fn remove(remote_config: &Path) -> Result<()> {
if remote_config.exists() {
remove_file(remote_config)?;
}
Ok(())
}
pub fn sync_up(data_directory: &Path, remote_config: &Path) -> Result<()> {
let remote_address =
read_remote(remote_config).ok_or_else(|| Error::new(Other, "No remote is configured"))?;
create_dir_all(data_directory)?;
let remotes = available_remotes();
for remote in remotes {
if remote.can_handle(&remote_address) {
return remote.sync_up(&remote_address, data_directory);
}
}
Err(Error::new(
Other,
"No valid strategies found for your configured remote.",
))
}
pub fn sync_down(data_directory: &Path, remote_config: &Path) -> Result<()> {
let remote_address =
read_remote(remote_config).ok_or_else(|| Error::new(Other, "No remote is configured"))?;
create_dir_all(data_directory)?;
let remotes = available_remotes();
for remote in remotes {
if remote.can_handle(&remote_address) {
return remote.sync_down(&remote_address, data_directory);
}
}
Err(Error::new(
Other,
"No valid strategies found for your configured remote.",
))
}
fn available_remotes() -> Vec<Box<dyn Remote>> {
vec![Box::new(Git::new())]
}
fn read_remote(file_path: &Path) -> Option<String> {
let mut file = File::open(file_path).ok()?;
let mut contents = String::new();
file.read_to_string(&mut contents).ok()?;
Some(contents)
}
#[cfg(test)]
mod tests {
use std::fs::create_dir_all;
use std::io::Write;
use std::path::PathBuf;
use super::*;
use test_utilities::*;
#[test]
fn test_adds_a_remote() {
let test_dir = setup_test_dir();
let config_dir = test_dir.join("config");
let remote_config = config_dir.join("remoteconfig");
assert!(!&config_dir.exists());
add(&config_dir, &remote_config, "whaaat").expect("Could not add a remote");
assert!(&config_dir.exists());
assert_file_contents(&remote_config, "whaaat");
cleanup_test_dir(&test_dir);
}
#[test]
fn test_removes_a_remote() {
let test_dir = setup_test_dir();
let remote_config = test_dir.join("remoteconfig");
create_test_file(&remote_config, "remote control");
assert_file_contents(&remote_config, "remote control");
remove(&remote_config).expect("Could not remove a remote");
assert!(!&remote_config.exists());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_syncs_remote_up() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modlocal");
let remote_dir = test_dir.join("modremote");
create_dir_all(&local_dir).expect("Could not create local test directory");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
create_test_file(&local_dir.join("file1.txt"), "I exist");
sync_up(&local_dir, &test_dir.join("remoteconfig")).expect("Could not sync up to remote");
assert_file_in_repo_with_contents(&remote_dir_as_string, "file1.txt", "I exist");
assert_file_in_repo_does_not_exist(&remote_dir_as_string, "file2.txt");
create_test_file(&local_dir.join("file2.txt"), "I also exist now, btw");
sync_up(&local_dir, &test_dir.join("remoteconfig")).expect("Could not sync up to remote");
assert_file_in_repo_with_contents(&remote_dir_as_string, "file1.txt", "I exist");
assert_file_in_repo_with_contents(
&remote_dir_as_string,
"file2.txt",
"I also exist now, btw",
);
cleanup_test_dir(&test_dir);
}
#[test]
fn test_syncs_remote_up_even_if_directory_does_not_exist() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modlocal");
let remote_dir = test_dir.join("modremote");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
sync_up(&local_dir, &test_dir.join("remoteconfig")).expect("Could not sync up to remote");
assert!(local_dir.exists());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_sync_up_down_fails_if_local_not_creatable() {
let test_dir = setup_test_dir();
let local_dir = &PathBuf::from("/lasjkdlaksjdklasjdlaks/asldkj/asjdlaksdj");
let remote_dir = test_dir.join("modremote");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
let result = sync_up(&local_dir, &test_dir.join("remoteconfig"));
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_sync_up_fails_on_invalid_strategies() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modlocal");
create_test_file(&test_dir.join("remoteconfig"), "AAAAAH");
let result = sync_up(&local_dir, &test_dir.join("remoteconfig"));
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_syncs_remote_down() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modownlocal");
let remote_dir = test_dir.join("modownremote");
create_dir_all(&local_dir).expect("Could not create local test directory");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
commit_file_to_remote(&remote_dir_as_string, "file 1.txt", "I exist, but remotely");
assert!(!&local_dir.join("file 1.txt").exists());
assert!(!&local_dir.join("file2.txt").exists());
sync_down(&local_dir, &test_dir.join("remoteconfig"))
.expect("Could not sync down from remote");
assert_file_contents(&local_dir.join("file 1.txt"), "I exist, but remotely");
assert!(!&local_dir.join("file2.txt").exists());
commit_file_to_remote(
&remote_dir_as_string,
"file2.txt",
"I also exist, but remotely",
);
assert!(!&local_dir.join("file2.txt").exists());
sync_down(&local_dir, &test_dir.join("remoteconfig"))
.expect("Could not sync down from remote");
assert_file_contents(&local_dir.join("file 1.txt"), "I exist, but remotely");
assert_file_contents(&local_dir.join("file2.txt"), "I also exist, but remotely");
cleanup_test_dir(&test_dir);
}
#[test]
fn test_syncs_remote_down_even_if_directory_does_not_exist() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modlocal");
let remote_dir = test_dir.join("modremote");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
commit_file_to_remote(&remote_dir_as_string, "onions", "Make me cry");
sync_down(&local_dir, &test_dir.join("remoteconfig")).expect("Could not sync up to remote");
assert_file_contents(&local_dir.join("onions"), "Make me cry");
cleanup_test_dir(&test_dir);
}
#[test]
fn test_sync_down_fails_if_local_not_creatable() {
let test_dir = setup_test_dir();
let local_dir = &PathBuf::from("/lasjkdlaksjdklasjdlaks/asldkj/asjdlaksdj");
let remote_dir = test_dir.join("modremote");
create_dir_all(&remote_dir).expect("Could not create remote test directory");
create_remote(&remote_dir);
let remote_dir_as_string = remote_dir.display().to_string();
create_test_file(&test_dir.join("remoteconfig"), &remote_dir_as_string);
let result = sync_down(&local_dir, &test_dir.join("remoteconfig"));
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_sync_down_fails_on_invalid_strategies() {
let test_dir = setup_test_dir();
let local_dir = test_dir.join("modlocal");
create_test_file(&test_dir.join("remoteconfig"), "AAAAAH");
let result = sync_down(&local_dir, &test_dir.join("remoteconfig"));
assert!(result.is_err());
cleanup_test_dir(&test_dir);
}
#[test]
fn test_it_should_fail_if_remote_is_invalid() {
let test_dir = setup_test_dir();
let bad_file_path = &test_dir.join("BADFILE OH NO");
let invalid_bytes = vec![0xFF, 0xFF];
let mut bad_file = File::create(&bad_file_path).expect("Could not create bad file.");
bad_file
.write_all(&invalid_bytes)
.expect("Could not write bad bytes to bad file.");
assert_eq!(read_remote(&bad_file_path), None);
cleanup_test_dir(&test_dir);
}
}
|
