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use once_cell::sync::Lazy;
use std::io::prelude::*;
use std::io::{Error, ErrorKind};
use std::path::{Path, PathBuf};
use std::process::Command;
use std::{env, fs, io, process};
static MANIFEST_DIR: Lazy<&'static Path> = Lazy::new(|| Path::new(env!("CARGO_MANIFEST_DIR")));
static EMPTY_CONFIG: Lazy<PathBuf> = Lazy::new(|| MANIFEST_DIR.join("empty_config.toml"));
/// Render the full starship prompt
pub fn render_prompt() -> process::Command {
let mut command = process::Command::new("./target/debug/starship");
command
.arg("prompt")
.env_clear()
.env("PATH", env!("PATH")) // Provide the $PATH variable so that external programs are runnable
.env("STARSHIP_CONFIG", EMPTY_CONFIG.as_os_str());
command
}
/// Render a specific starship module by name
pub fn render_module(module_name: &str) -> process::Command {
let binary = fs::canonicalize("./target/debug/starship").unwrap();
let mut command = process::Command::new(binary);
command
.arg("module")
.arg(module_name)
.env_clear()
.env("PATH", env!("PATH")) // Provide the $PATH variable so that external programs are runnable
.env("STARSHIP_CONFIG", EMPTY_CONFIG.as_os_str());
command
}
/// Create a temporary directory with full access permissions (rwxrwxrwt).
pub fn new_tempdir() -> io::Result<tempfile::TempDir> {
// Using `tempfile::TempDir` directly creates files on macOS within
// "/var/folders", which provides us with restricted permissions (rwxr-xr-x)
tempfile::tempdir_in("/tmp")
}
/// Create a repo from the fixture to be used in git module tests
pub fn create_fixture_repo() -> io::Result<PathBuf> {
let fixture_repo_path = new_tempdir()?.path().join("fixture");
let repo_path = new_tempdir()?.path().join("rocket");
let fixture_path = env::current_dir()?.join("tests/fixtures/rocket.bundle");
let fixture_repo_dir = path_str(&fixture_repo_path)?;
let repo_dir = path_str(&repo_path)?;
let fixture = path_str(&fixture_path)?;
Command::new("git")
.args(&["clone", "-b", "master", fixture, fixture_repo_dir])
.output()?;
git2::Repository::clone(fixture_repo_dir, repo_dir).ok();
Command::new("git")
.args(&["config", "--local", "user.email", "starship@example.com"])
.current_dir(repo_dir)
.output()?;
Command::new("git")
.args(&["config", "--local", "user.name", "starship"])
.current_dir(repo_dir)
.output()?;
Ok(repo_path)
}
fn path_str(repo_dir: &PathBuf) -> io::Result<&str> {
repo_dir
.to_str()
.ok_or_else(|| Error::from(ErrorKind::Other))
}
/// Extends `std::process::Command` with methods for testing
pub trait TestCommand {
fn use_config(&mut self, toml: toml::value::Value) -> &mut process::Command;
}
impl TestCommand for process::Command {
/// Create a configuration file with the provided TOML and use it
fn use_config(&mut self, toml: toml::value::Value) -> &mut process::Command {
// Create a persistent config file in a tempdir
let (mut config_file, config_path) =
tempfile::NamedTempFile::new().unwrap().keep().unwrap();
write!(config_file, "{}", toml.to_string()).unwrap();
// Set that newly-created file as the config for the prompt instance
self.env("STARSHIP_CONFIG", config_path)
}
}
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