use anyhow::{Result, bail};
use serde::Deserialize;
use std::collections::BTreeMap;
use std::path::{Path, PathBuf};
#[derive(Debug, Deserialize)]
pub struct Manifest {
#[serde(default)]
pub project: Project,
#[serde(rename = "clone", default)]
pub clones: Vec<CloneEntry>,
#[serde(default)]
pub language: BTreeMap<String, Language>,
#[serde(default)]
pub service: BTreeMap<String, Service>,
pub run: Option<Run>,
#[serde(default)]
pub tool: BTreeMap<String, Tool>,
}
#[derive(Debug, Deserialize, Default)]
pub struct Project {
#[serde(default)]
pub name: String,
pub domain: Option<String>,
}
#[derive(Debug, Deserialize)]
pub struct CloneEntry {
pub repo: String,
#[serde(default = "default_clone_path")]
pub path: String,
#[serde(rename = "ref")]
pub git_ref: Option<String>,
}
fn default_clone_path() -> String {
".".to_string()
}
#[derive(Debug, Deserialize)]
#[serde(untagged)]
pub enum Language {
Simple(String),
Detailed {
version: Option<String>,
manager: Option<String>,
plugin: Option<String>,
binary: Option<String>,
path: Option<String>,
},
}
impl Language {
pub fn version(&self) -> Option<&str> {
match self {
Language::Simple(v) => Some(v),
Language::Detailed { version, .. } => version.as_deref(),
}
}
pub fn manager(&self) -> Option<&str> {
match self {
Language::Simple(_) => None,
Language::Detailed { manager, .. } => manager.as_deref(),
}
}
pub fn plugin(&self) -> Option<&str> {
match self {
Language::Simple(_) => None,
Language::Detailed { plugin, .. } => plugin.as_deref(),
}
}
pub fn binary(&self) -> Option<&str> {
match self {
Language::Simple(_) => None,
Language::Detailed { binary, .. } => binary.as_deref(),
}
}
pub fn path(&self) -> Option<&str> {
match self {
Language::Simple(_) => None,
Language::Detailed { path, .. } => path.as_deref(),
}
}
}
#[derive(Debug, Deserialize)]
pub struct Service {
pub version: String,
pub schema: Option<String>,
pub port: Option<u16>,
pub command: Option<String>,
pub path: Option<String>,
#[serde(default)]
pub external: bool,
}
impl Service {
pub fn resolve_schema(&self, project_name: &str) -> String {
self.schema.clone().unwrap_or_else(|| project_name.to_string())
}
pub fn resolve_port(&self, engine: &str) -> Option<u16> {
self.port.or_else(|| conventional_port(engine))
}
pub fn resolve_command(&self, engine: &str) -> Option<String> {
self.command.clone().or_else(|| default_command(engine).map(str::to_string))
}
pub fn validate(&self, engine: &str) -> Result<()> {
if self.external && (self.path.is_some() || self.command.is_some()) {
bail!("[service.{engine}] can't set path/command when external = true — stack only connects to it, never starts it");
}
Ok(())
}
}
fn conventional_port(engine: &str) -> Option<u16> {
match engine {
"mysql" => Some(3306),
"postgres" | "postgresql" => Some(5432),
"mongo" | "mongodb" => Some(27017),
_ => None,
}
}
fn default_command(engine: &str) -> Option<&'static str> {
match engine {
"mysql" => Some("{path} --datadir={data_dir} --port={port}"),
"postgres" | "postgresql" => Some(r#"{path} -D {data_dir} -o "-p {port}""#),
"mongo" | "mongodb" => Some("{path} --dbpath {data_dir} --port {port}"),
_ => None,
}
}
#[derive(Debug, Deserialize)]
pub struct Run {
pub command: Option<String>,
pub port: Option<u16>,
#[serde(default = "default_cwd")]
pub cwd: String,
#[serde(default)]
pub external: bool,
}
fn default_cwd() -> String {
".".to_string()
}
impl Run {
pub fn validate(&self) -> Result<()> {
if self.external {
if self.command.is_some() {
bail!("[run].command is ignored when external = true — remove one or the other");
}
if self.port.is_none() {
bail!("[run].port is required when external = true — stack has nothing to allocate for a process it isn't starting");
}
} else if self.command.is_none() {
bail!("[run].command is required unless external = true");
}
Ok(())
}
}
#[derive(Debug, Deserialize)]
pub struct Tool {
pub path: Option<String>,
pub version: Option<String>,
}
impl Manifest {
pub fn load(path: &Path) -> Result<Self> {
let text = std::fs::read_to_string(path)?;
let mut manifest: Manifest = toml::from_str(&text)?;
if manifest.project.name.is_empty() {
manifest.project.name = path
.parent()
.and_then(|p| p.file_name())
.and_then(|n| n.to_str())
.unwrap_or("project")
.to_string();
}
if manifest.project.domain.is_none() {
manifest.project.domain = Some(format!("{}.localhost", manifest.project.name));
}
Ok(manifest)
}
pub fn find_and_load(start: &Path) -> Result<(PathBuf, Self)> {
let mut dir = std::path::absolute(start)?;
loop {
let candidate = dir.join("stack.toml");
if candidate.is_file() {
let manifest = Self::load(&candidate)?;
return Ok((candidate, manifest));
}
if !dir.pop() {
bail!("no stack.toml found in this directory or any parent");
}
}
}
}
#[cfg(test)]
mod tests {
use super::*;
fn write_and_load(dir: &std::path::Path, contents: &str) -> Manifest {
let path = dir.join("stack.toml");
std::fs::write(&path, contents).unwrap();
Manifest::load(&path).unwrap()
}
#[test]
fn project_name_defaults_to_folder_name() {
let tmp = std::env::temp_dir().join(format!("stack-test-{}", std::process::id()));
std::fs::create_dir_all(&tmp).unwrap();
let named_dir = tmp.join("my-cool-app");
std::fs::create_dir_all(&named_dir).unwrap();
let manifest = write_and_load(&named_dir, "[language]\nphp = \"8.3.1\"\n");
assert_eq!(manifest.project.name, "my-cool-app");
std::fs::remove_dir_all(&tmp).ok();
}
#[test]
fn domain_defaults_to_name_dot_localhost() {
let tmp = std::env::temp_dir().join(format!("stack-test-domain-{}", std::process::id()));
std::fs::create_dir_all(&tmp).unwrap();
let manifest = write_and_load(&tmp, "[project]\nname = \"my-app\"\n");
assert_eq!(manifest.project.domain, Some("my-app.localhost".to_string()));
std::fs::remove_dir_all(&tmp).ok();
}
#[test]
fn explicit_domain_is_not_overridden() {
let tmp = std::env::temp_dir().join(format!("stack-test-domain2-{}", std::process::id()));
std::fs::create_dir_all(&tmp).unwrap();
let manifest = write_and_load(&tmp, "[project]\nname = \"my-app\"\ndomain = \"custom.example\"\n");
assert_eq!(manifest.project.domain, Some("custom.example".to_string()));
std::fs::remove_dir_all(&tmp).ok();
}
#[test]
fn clone_path_defaults_to_dot() {
let entry: CloneEntry = toml::from_str("repo = \"git@github.com:acme/x.git\"\n").unwrap();
assert_eq!(entry.path, ".");
}
#[test]
fn service_schema_defaults_to_project_name() {
let svc: Service = toml::from_str("version = \"8.0.35\"\n").unwrap();
assert_eq!(svc.resolve_schema("my_project"), "my_project");
let svc_explicit: Service = toml::from_str("version = \"8.0.35\"\nschema = \"custom\"\n").unwrap();
assert_eq!(svc_explicit.resolve_schema("my_project"), "custom");
}
#[test]
fn service_port_defaults_to_conventional_port() {
let svc: Service = toml::from_str("version = \"8.0.35\"\n").unwrap();
assert_eq!(svc.resolve_port("mysql"), Some(3306));
assert_eq!(svc.resolve_port("postgres"), Some(5432));
assert_eq!(svc.resolve_port("mongo"), Some(27017));
assert_eq!(svc.resolve_port("redis"), None);
let svc_explicit: Service = toml::from_str("version = \"1\"\nport = 9999\n").unwrap();
assert_eq!(svc_explicit.resolve_port("mysql"), Some(9999));
}
#[test]
fn service_command_defaults_for_known_engines_only() {
let svc: Service = toml::from_str("version = \"8.0.35\"\n").unwrap();
assert!(svc.resolve_command("mysql").is_some());
assert!(svc.resolve_command("redis").is_none());
let svc_explicit: Service = toml::from_str("version = \"1\"\ncommand = \"custom --flag\"\n").unwrap();
assert_eq!(svc_explicit.resolve_command("mysql"), Some("custom --flag".to_string()));
}
#[test]
fn run_requires_command_unless_external() {
let run: Run = toml::from_str("port = 8000\n").unwrap();
assert!(run.validate().is_err());
let run: Run = toml::from_str("command = \"php -S 127.0.0.1:{port}\"\n").unwrap();
assert!(run.validate().is_ok());
}
#[test]
fn run_external_rejects_command() {
let run: Run = toml::from_str("external = true\nport = 8000\ncommand = \"uvicorn --reload\"\n").unwrap();
assert!(run.validate().is_err());
}
#[test]
fn run_external_requires_port() {
let run: Run = toml::from_str("external = true\n").unwrap();
assert!(run.validate().is_err());
let run: Run = toml::from_str("external = true\nport = 8000\n").unwrap();
assert!(run.validate().is_ok());
}
#[test]
fn language_simple_string_form_parses() {
let map: BTreeMap<String, Language> = toml::from_str("php = \"8.3.1\"\n").unwrap();
let lang = map.get("php").unwrap();
assert_eq!(lang.version(), Some("8.3.1"));
assert_eq!(lang.manager(), None);
assert_eq!(lang.path(), None);
}
#[test]
fn language_detailed_table_form_parses() {
let map: BTreeMap<String, Language> =
toml::from_str("[rust]\nversion = \"1.75.0\"\nmanager = \"vfox\"\nplugin = \"rust\"\n").unwrap();
let lang = map.get("rust").unwrap();
assert_eq!(lang.version(), Some("1.75.0"));
assert_eq!(lang.manager(), Some("vfox"));
assert_eq!(lang.plugin(), Some("rust"));
}
#[test]
fn language_byo_path_form_parses() {
let map: BTreeMap<String, Language> = toml::from_str("[legacyphp]\npath = \"C:/tools/php-5.6/php.exe\"\n").unwrap();
let lang = map.get("legacyphp").unwrap();
assert_eq!(lang.path(), Some("C:/tools/php-5.6/php.exe"));
assert_eq!(lang.version(), None);
}
#[test]
fn tool_parses_byo_path_form() {
let tool: Tool = toml::from_str("path = \"C:/tools/terraform.exe\"\n").unwrap();
assert_eq!(tool.path.as_deref(), Some("C:/tools/terraform.exe"));
assert_eq!(tool.version, None);
}
#[test]
fn tool_parses_version_only_form() {
let tool: Tool = toml::from_str("version = \"2.7.1\"\n").unwrap();
assert_eq!(tool.version.as_deref(), Some("2.7.1"));
assert_eq!(tool.path, None);
}
#[test]
fn manifest_language_map_mixes_simple_and_detailed_entries() {
let tmp = std::env::temp_dir().join(format!("stack-test-lang-{}", std::process::id()));
std::fs::create_dir_all(&tmp).unwrap();
let manifest = write_and_load(
&tmp,
"[language]\nphp = \"8.3.1\"\n\n[language.rust]\nversion = \"1.75.0\"\nmanager = \"vfox\"\n",
);
assert_eq!(manifest.language.get("php").unwrap().version(), Some("8.3.1"));
assert_eq!(manifest.language.get("rust").unwrap().manager(), Some("vfox"));
std::fs::remove_dir_all(&tmp).ok();
}
}