Files
tolaria/src-tauri/src/pi_discovery.rs
2026-04-30 15:01:35 +02:00

330 lines
10 KiB
Rust

use crate::ai_agents::AiAgentAvailability;
use std::path::{Path, PathBuf};
pub(crate) fn check_cli() -> AiAgentAvailability {
match find_binary() {
Ok(binary) => AiAgentAvailability {
installed: true,
version: crate::cli_agent_runtime::version_for_binary(&binary),
},
Err(_) => AiAgentAvailability {
installed: false,
version: None,
},
}
}
pub(crate) fn find_binary() -> Result<PathBuf, String> {
if let Some(binary) = find_binary_on_path() {
return Ok(binary);
}
if let Some(binary) = find_binary_in_user_shell() {
return Ok(binary);
}
if let Some(binary) = crate::cli_agent_runtime::find_executable_binary_candidate(
pi_binary_candidates(),
"Pi CLI",
)? {
return Ok(binary);
}
Err("Pi CLI not found. Install it: https://pi.dev".into())
}
fn find_binary_on_path() -> Option<PathBuf> {
crate::hidden_command(path_lookup_command())
.arg("pi")
.output()
.ok()
.and_then(|output| path_from_successful_output(&output))
}
fn path_lookup_command() -> &'static str {
if cfg!(windows) {
"where"
} else {
"which"
}
}
fn find_binary_in_user_shell() -> Option<PathBuf> {
user_shell_candidates()
.into_iter()
.filter(|shell| shell.exists())
.find_map(|shell| command_path_from_shell(&shell, "pi"))
}
fn user_shell_candidates() -> Vec<PathBuf> {
let mut shells = Vec::new();
if let Some(shell) = std::env::var_os("SHELL") {
if !shell.is_empty() {
shells.push(PathBuf::from(shell));
}
}
shells.push(PathBuf::from("/bin/zsh"));
shells.push(PathBuf::from("/bin/bash"));
shells
}
fn command_path_from_shell(shell: &Path, command: &str) -> Option<PathBuf> {
crate::hidden_command(shell)
.arg("-lc")
.arg(format!("command -v {command}"))
.output()
.ok()
.and_then(|output| path_from_successful_output(&output))
}
fn path_from_successful_output(output: &std::process::Output) -> Option<PathBuf> {
if output.status.success() {
first_existing_path(&String::from_utf8_lossy(&output.stdout))
} else {
None
}
}
fn first_existing_path(stdout: &str) -> Option<PathBuf> {
stdout.lines().find_map(|line| {
let trimmed = line.trim();
if trimmed.is_empty() {
return None;
}
let candidate = PathBuf::from(trimmed);
candidate.exists().then_some(candidate)
})
}
fn pi_binary_candidates() -> Vec<PathBuf> {
let mut candidates = pi_binary_candidates_from_env();
if let Some(home) = dirs::home_dir() {
candidates.extend(pi_binary_candidates_for_home(&home));
}
candidates.extend(pi_global_binary_candidates());
candidates
}
fn pi_binary_candidates_for_home(home: &Path) -> Vec<PathBuf> {
let mut candidates = pi_nvm_binary_candidates_for_home(home);
candidates.extend([
home.join(".local/bin/pi"),
home.join(".local/bin/pi.exe"),
home.join(".pi/bin/pi"),
home.join(".pi/bin/pi.exe"),
home.join(".local/share/mise/shims/pi"),
home.join(".local/share/mise/shims/pi.exe"),
home.join(".asdf/shims/pi"),
home.join(".asdf/shims/pi.exe"),
home.join(".npm-global/bin/pi"),
home.join(".npm-global/bin/pi.cmd"),
home.join(".npm-global/bin/pi.exe"),
home.join(".npm/bin/pi"),
home.join(".npm/bin/pi.cmd"),
home.join(".npm/bin/pi.exe"),
home.join(".bun/bin/pi"),
home.join(".bun/bin/pi.exe"),
home.join(".linuxbrew/bin/pi"),
home.join("AppData/Roaming/npm/pi.cmd"),
home.join("AppData/Roaming/npm/pi.exe"),
home.join("AppData/Local/pnpm/pi.cmd"),
home.join("AppData/Local/pnpm/pi.exe"),
home.join("scoop/shims/pi.exe"),
]);
candidates
}
fn pi_global_binary_candidates() -> Vec<PathBuf> {
vec![
PathBuf::from("/home/linuxbrew/.linuxbrew/bin/pi"),
PathBuf::from("/usr/local/bin/pi"),
PathBuf::from("/opt/homebrew/bin/pi"),
]
}
fn pi_binary_candidates_from_env() -> Vec<PathBuf> {
let nvm_bin = std::env::var_os("NVM_BIN").map(PathBuf::from);
let npm_config_prefix = std::env::var_os("npm_config_prefix").map(PathBuf::from);
let npm_config_prefix_upper = std::env::var_os("NPM_CONFIG_PREFIX").map(PathBuf::from);
pi_binary_candidates_from_prefixes(nvm_bin, npm_config_prefix, npm_config_prefix_upper)
}
fn pi_binary_candidates_from_prefixes(
nvm_bin: Option<PathBuf>,
npm_config_prefix: Option<PathBuf>,
npm_config_prefix_upper: Option<PathBuf>,
) -> Vec<PathBuf> {
let mut candidates = Vec::new();
if let Some(path) = nvm_bin.filter(|path| !path.as_os_str().is_empty()) {
candidates.push(path.join("pi"));
}
if let Some(path) = npm_config_prefix.filter(|path| !path.as_os_str().is_empty()) {
candidates.push(path.join("bin/pi"));
}
if let Some(path) = npm_config_prefix_upper.filter(|path| !path.as_os_str().is_empty()) {
candidates.push(path.join("bin/pi"));
}
candidates
}
fn pi_nvm_binary_candidates_for_home(home: &Path) -> Vec<PathBuf> {
let versions_dir = home.join(".nvm/versions/node");
let mut version_dirs = match std::fs::read_dir(versions_dir) {
Ok(entries) => entries
.flatten()
.map(|entry| entry.path())
.filter(|path| path.is_dir())
.collect::<Vec<_>>(),
Err(_) => return Vec::new(),
};
version_dirs.sort_by(|left, right| right.file_name().cmp(&left.file_name()));
version_dirs
.into_iter()
.map(|version_dir| version_dir.join("bin/pi"))
.collect()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn binary_candidates_include_supported_local_installs() {
let home = PathBuf::from("/Users/alex");
let candidates = pi_binary_candidates_for_home(&home);
let expected = [
home.join(".local/bin/pi"),
home.join(".pi/bin/pi"),
home.join(".local/share/mise/shims/pi"),
home.join(".asdf/shims/pi"),
home.join(".npm-global/bin/pi"),
home.join(".bun/bin/pi"),
];
for candidate in expected {
assert!(
candidates.contains(&candidate),
"missing {}",
candidate.display()
);
}
}
#[test]
fn binary_candidates_include_linuxbrew_installs() {
let home = PathBuf::from("/home/alex");
let home_candidates = pi_binary_candidates_for_home(&home);
let global_candidates = pi_global_binary_candidates();
let expected_home = home.join(".linuxbrew/bin/pi");
let expected_global = PathBuf::from("/home/linuxbrew/.linuxbrew/bin/pi");
assert!(
home_candidates.contains(&expected_home),
"missing {}",
expected_home.display()
);
assert!(
global_candidates.contains(&expected_global),
"missing {}",
expected_global.display()
);
}
#[test]
fn binary_candidates_include_windows_npm_and_toolchain_shims() {
let home = PathBuf::from(r"C:\Users\alex");
let candidates = pi_binary_candidates_for_home(&home);
let expected = [
home.join(".npm-global/bin/pi.cmd"),
home.join(".npm-global/bin/pi.exe"),
home.join(".npm/bin/pi.cmd"),
home.join(".npm/bin/pi.exe"),
home.join("AppData/Roaming/npm/pi.cmd"),
home.join("AppData/Roaming/npm/pi.exe"),
home.join("AppData/Local/pnpm/pi.cmd"),
home.join("AppData/Local/pnpm/pi.exe"),
home.join("scoop/shims/pi.exe"),
];
for candidate in expected {
assert!(
candidates.contains(&candidate),
"missing {}",
candidate.display()
);
}
}
#[test]
fn path_lookup_command_matches_current_platform() {
let expected = if cfg!(windows) { "where" } else { "which" };
assert_eq!(path_lookup_command(), expected);
}
#[test]
fn binary_candidates_include_nvm_node_version_installs() {
let home = tempfile::tempdir().unwrap();
let pi = home.path().join(".nvm/versions/node/v22.20.0/bin/pi");
std::fs::create_dir_all(pi.parent().unwrap()).unwrap();
std::fs::write(&pi, "#!/bin/sh\n").unwrap();
let candidates = pi_binary_candidates_for_home(home.path());
assert!(
candidates.contains(&pi),
"missing nvm candidate {}",
pi.display()
);
}
#[test]
fn binary_candidates_include_static_global_fallbacks() {
let candidates = pi_global_binary_candidates();
assert!(candidates.contains(&PathBuf::from("/usr/local/bin/pi")));
assert!(candidates.contains(&PathBuf::from("/opt/homebrew/bin/pi")));
}
#[test]
fn binary_candidates_include_env_provided_npm_and_nvm_prefixes() {
let nvm_bin = PathBuf::from("/Users/alex/.nvm/versions/node/v22.20.0/bin");
let npm_config_prefix = PathBuf::from("/Users/alex/.npm-global");
let npm_config_prefix_upper = PathBuf::from("/Users/alex/.npm");
let candidates = pi_binary_candidates_from_prefixes(
Some(nvm_bin.clone()),
Some(npm_config_prefix.clone()),
Some(npm_config_prefix_upper.clone()),
);
assert_eq!(
candidates,
vec![
nvm_bin.join("pi"),
npm_config_prefix.join("bin/pi"),
npm_config_prefix_upper.join("bin/pi"),
]
);
}
#[test]
fn first_existing_path_skips_empty_and_missing_lines() {
let dir = tempfile::tempdir().unwrap();
let missing = dir.path().join("missing-pi");
let pi = dir.path().join("pi");
std::fs::write(&pi, "#!/bin/sh\n").unwrap();
let stdout = format!("\n{}\n{}\n", missing.display(), pi.display());
assert_eq!(first_existing_path(&stdout), Some(pi));
}
}