669 lines
18 KiB
Rust
669 lines
18 KiB
Rust
use {super::*, clap_mangen::Man};
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const INIT_JUSTFILE: &str = "default:\n echo 'Hello, world!'\n";
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#[derive(PartialEq, Clone, Debug)]
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pub(crate) enum Subcommand {
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Changelog,
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Choose {
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overrides: BTreeMap<String, String>,
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chooser: Option<String>,
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},
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Command {
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arguments: Vec<OsString>,
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binary: OsString,
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overrides: BTreeMap<String, String>,
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},
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Completions {
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shell: completions::Shell,
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},
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Dump,
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Edit,
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Evaluate {
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overrides: BTreeMap<String, String>,
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variable: Option<String>,
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},
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Format,
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Groups,
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Init,
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List {
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path: ModulePath,
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},
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Man,
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Run {
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arguments: Vec<String>,
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overrides: BTreeMap<String, String>,
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},
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Show {
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path: ModulePath,
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},
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Summary,
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Variables,
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}
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impl Subcommand {
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pub(crate) fn execute<'src>(
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&self,
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config: &Config,
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loader: &'src Loader,
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) -> Result<(), Error<'src>> {
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use Subcommand::*;
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match self {
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Changelog => {
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Self::changelog();
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return Ok(());
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}
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Completions { shell } => return Self::completions(*shell),
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Init => return Self::init(config),
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Man => return Self::man(),
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Run {
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arguments,
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overrides,
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} => return Self::run(config, loader, arguments, overrides),
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_ => {}
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}
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let search = Search::find(&config.search_config, &config.invocation_directory)?;
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if let Edit = self {
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return Self::edit(&search);
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}
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let compilation = Self::compile(config, loader, &search)?;
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let justfile = &compilation.justfile;
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let ast = compilation.root_ast();
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let src = compilation.root_src();
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match self {
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Choose { overrides, chooser } => {
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Self::choose(config, justfile, &search, overrides, chooser.as_deref())?;
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}
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Command { overrides, .. } | Evaluate { overrides, .. } => {
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justfile.run(config, &search, overrides, &[])?;
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}
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Dump => Self::dump(config, ast, justfile)?,
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Format => Self::format(config, &search, src, ast)?,
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Groups => Self::groups(config, justfile),
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List { path } => Self::list(config, justfile, path)?,
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Show { path } => Self::show(config, justfile, path)?,
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Summary => Self::summary(config, justfile),
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Variables => Self::variables(justfile),
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Changelog | Completions { .. } | Edit | Init | Man | Run { .. } => unreachable!(),
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}
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Ok(())
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}
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fn groups(config: &Config, justfile: &Justfile) {
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println!("Recipe groups:");
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for group in justfile.public_groups() {
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println!("{}{group}", config.list_prefix);
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}
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}
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fn run<'src>(
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config: &Config,
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loader: &'src Loader,
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arguments: &[String],
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overrides: &BTreeMap<String, String>,
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) -> Result<(), Error<'src>> {
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if matches!(
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config.search_config,
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SearchConfig::FromInvocationDirectory | SearchConfig::FromSearchDirectory { .. }
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) {
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let starting_path = match &config.search_config {
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SearchConfig::FromInvocationDirectory => config.invocation_directory.clone(),
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SearchConfig::FromSearchDirectory { search_directory } => {
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env::current_dir().unwrap().join(search_directory)
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}
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_ => unreachable!(),
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};
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let mut path = starting_path.clone();
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let mut unknown_recipes_errors = None;
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loop {
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let search = match Search::find_next(&path) {
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Err(SearchError::NotFound) => match unknown_recipes_errors {
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Some(err) => return Err(err),
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None => return Err(SearchError::NotFound.into()),
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},
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Err(err) => return Err(err.into()),
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Ok(search) => {
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if config.verbosity.loquacious() && path != starting_path {
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eprintln!(
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"Trying {}",
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starting_path
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.strip_prefix(path)
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.unwrap()
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.components()
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.map(|_| path::Component::ParentDir)
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.collect::<PathBuf>()
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.join(search.justfile.file_name().unwrap())
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.display()
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);
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}
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search
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}
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};
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match Self::run_inner(config, loader, arguments, overrides, &search) {
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Err((err @ Error::UnknownRecipes { .. }, true)) => {
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match search.justfile.parent().unwrap().parent() {
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Some(parent) => {
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unknown_recipes_errors.get_or_insert(err);
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path = parent.into();
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}
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None => return Err(err),
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}
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}
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result => return result.map_err(|(err, _fallback)| err),
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}
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}
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} else {
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Self::run_inner(
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config,
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loader,
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arguments,
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overrides,
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&Search::find(&config.search_config, &config.invocation_directory)?,
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)
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.map_err(|(err, _fallback)| err)
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}
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}
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fn run_inner<'src>(
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config: &Config,
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loader: &'src Loader,
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arguments: &[String],
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overrides: &BTreeMap<String, String>,
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search: &Search,
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) -> Result<(), (Error<'src>, bool)> {
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let compilation = Self::compile(config, loader, search).map_err(|err| (err, false))?;
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let justfile = &compilation.justfile;
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justfile
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.run(config, search, overrides, arguments)
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.map_err(|err| (err, justfile.settings.fallback))
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}
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fn compile<'src>(
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config: &Config,
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loader: &'src Loader,
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search: &Search,
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) -> Result<Compilation<'src>, Error<'src>> {
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let compilation = Compiler::compile(config.unstable, loader, &search.justfile)?;
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if config.verbosity.loud() {
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for warning in &compilation.justfile.warnings {
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eprintln!("{}", warning.color_display(config.color.stderr()));
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}
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}
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Ok(compilation)
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}
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fn changelog() {
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print!("{}", include_str!("../CHANGELOG.md"));
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}
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fn choose<'src>(
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config: &Config,
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justfile: &Justfile<'src>,
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search: &Search,
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overrides: &BTreeMap<String, String>,
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chooser: Option<&str>,
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) -> Result<(), Error<'src>> {
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let mut recipes = Vec::<&Recipe<Dependency>>::new();
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let mut stack = vec![justfile];
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while let Some(module) = stack.pop() {
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recipes.extend(
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module
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.public_recipes(config)
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.iter()
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.filter(|recipe| recipe.min_arguments() == 0),
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);
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stack.extend(module.modules.values());
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}
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if recipes.is_empty() {
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return Err(Error::NoChoosableRecipes);
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}
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let chooser = if let Some(chooser) = chooser {
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OsString::from(chooser)
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} else {
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let mut chooser = OsString::new();
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chooser.push("fzf --multi --preview 'just --unstable --color always --justfile \"");
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chooser.push(&search.justfile);
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chooser.push("\" --show {}'");
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chooser
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};
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let result = justfile
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.settings
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.shell_command(config)
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.arg(&chooser)
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.current_dir(&search.working_directory)
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.stdin(Stdio::piped())
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.stdout(Stdio::piped())
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.spawn();
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let mut child = match result {
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Ok(child) => child,
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Err(io_error) => {
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let (shell_binary, shell_arguments) = justfile.settings.shell(config);
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return Err(Error::ChooserInvoke {
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shell_binary: shell_binary.to_owned(),
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shell_arguments: shell_arguments.join(" "),
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chooser,
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io_error,
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});
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}
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};
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for recipe in recipes {
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writeln!(
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child.stdin.as_mut().unwrap(),
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"{}",
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recipe.namepath.spaced()
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)
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.map_err(|io_error| Error::ChooserWrite {
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io_error,
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chooser: chooser.clone(),
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})?;
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}
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let output = match child.wait_with_output() {
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Ok(output) => output,
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Err(io_error) => {
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return Err(Error::ChooserRead { io_error, chooser });
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}
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};
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if !output.status.success() {
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return Err(Error::ChooserStatus {
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status: output.status,
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chooser,
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});
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}
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let stdout = String::from_utf8_lossy(&output.stdout);
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let recipes = stdout
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.split_whitespace()
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.map(str::to_owned)
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.collect::<Vec<String>>();
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justfile.run(config, search, overrides, &recipes)
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}
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fn completions(shell: completions::Shell) -> RunResult<'static, ()> {
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println!("{}", shell.script()?);
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Ok(())
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}
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fn dump(config: &Config, ast: &Ast, justfile: &Justfile) -> Result<(), Error<'static>> {
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match config.dump_format {
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DumpFormat::Json => {
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serde_json::to_writer(io::stdout(), justfile)
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.map_err(|serde_json_error| Error::DumpJson { serde_json_error })?;
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println!();
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}
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DumpFormat::Just => print!("{ast}"),
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}
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Ok(())
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}
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fn edit(search: &Search) -> Result<(), Error<'static>> {
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let editor = env::var_os("VISUAL")
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.or_else(|| env::var_os("EDITOR"))
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.unwrap_or_else(|| "vim".into());
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let error = Command::new(&editor)
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.current_dir(&search.working_directory)
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.arg(&search.justfile)
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.status();
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let status = match error {
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Err(io_error) => return Err(Error::EditorInvoke { editor, io_error }),
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Ok(status) => status,
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};
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if !status.success() {
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return Err(Error::EditorStatus { editor, status });
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}
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Ok(())
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}
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fn format(config: &Config, search: &Search, src: &str, ast: &Ast) -> Result<(), Error<'static>> {
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config.require_unstable("The `--fmt` command is currently unstable.")?;
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let formatted = ast.to_string();
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if config.check {
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return if formatted == src {
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Ok(())
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} else {
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if !config.verbosity.quiet() {
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use similar::{ChangeTag, TextDiff};
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let diff = TextDiff::configure()
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.algorithm(similar::Algorithm::Patience)
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.diff_lines(src, &formatted);
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for op in diff.ops() {
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for change in diff.iter_changes(op) {
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let (symbol, color) = match change.tag() {
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ChangeTag::Delete => ("-", config.color.stdout().diff_deleted()),
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ChangeTag::Equal => (" ", config.color.stdout()),
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ChangeTag::Insert => ("+", config.color.stdout().diff_added()),
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};
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print!("{}{symbol}{change}{}", color.prefix(), color.suffix());
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}
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}
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}
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Err(Error::FormatCheckFoundDiff)
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};
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}
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fs::write(&search.justfile, formatted).map_err(|io_error| Error::WriteJustfile {
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justfile: search.justfile.clone(),
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io_error,
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})?;
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if config.verbosity.loud() {
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eprintln!("Wrote justfile to `{}`", search.justfile.display());
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}
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Ok(())
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}
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fn init(config: &Config) -> Result<(), Error<'static>> {
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let search = Search::init(&config.search_config, &config.invocation_directory)?;
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if search.justfile.is_file() {
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Err(Error::InitExists {
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justfile: search.justfile,
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})
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} else if let Err(io_error) = fs::write(&search.justfile, INIT_JUSTFILE) {
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Err(Error::WriteJustfile {
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justfile: search.justfile,
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io_error,
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})
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} else {
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if config.verbosity.loud() {
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eprintln!("Wrote justfile to `{}`", search.justfile.display());
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}
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Ok(())
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}
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}
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fn man() -> Result<(), Error<'static>> {
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let mut buffer = Vec::<u8>::new();
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Man::new(Config::app())
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.render(&mut buffer)
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.expect("writing to buffer cannot fail");
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let mut stdout = io::stdout().lock();
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stdout
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.write_all(&buffer)
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.map_err(|io_error| Error::StdoutIo { io_error })?;
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stdout
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.flush()
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.map_err(|io_error| Error::StdoutIo { io_error })?;
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Ok(())
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}
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fn list(config: &Config, mut module: &Justfile, path: &ModulePath) -> Result<(), Error<'static>> {
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for name in &path.path {
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module = module
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.modules
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.get(name)
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.ok_or_else(|| Error::UnknownSubmodule { path: path.clone() })?;
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}
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Self::list_module(config, module, 0);
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Ok(())
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}
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fn list_module(config: &Config, module: &Justfile, depth: usize) {
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let aliases = if config.no_aliases {
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BTreeMap::new()
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} else {
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let mut aliases = BTreeMap::<&str, Vec<&str>>::new();
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for alias in module.aliases.values().filter(|alias| !alias.is_private()) {
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aliases
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.entry(alias.target.name.lexeme())
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.or_default()
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.push(alias.name.lexeme());
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}
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aliases
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};
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let signature_widths = {
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let mut signature_widths: BTreeMap<&str, usize> = BTreeMap::new();
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for (name, recipe) in &module.recipes {
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if !recipe.is_public() {
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continue;
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}
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for name in iter::once(name).chain(aliases.get(name).unwrap_or(&Vec::new())) {
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signature_widths.insert(
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name,
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UnicodeWidthStr::width(
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RecipeSignature { name, recipe }
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.color_display(Color::never())
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.to_string()
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.as_str(),
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),
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);
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}
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}
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signature_widths
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};
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let max_signature_width = signature_widths
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.values()
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.copied()
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.filter(|width| *width <= 50)
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.max()
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.unwrap_or(0);
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|
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let list_prefix = config.list_prefix.repeat(depth + 1);
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|
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if depth == 0 {
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print!("{}", config.list_heading);
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}
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|
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let groups = {
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let mut groups = BTreeMap::<Option<String>, Vec<&Recipe>>::new();
|
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for recipe in module.public_recipes(config) {
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let recipe_groups = recipe.groups();
|
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if recipe_groups.is_empty() {
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groups.entry(None).or_default().push(recipe);
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} else {
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for group in recipe_groups {
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groups.entry(Some(group)).or_default().push(recipe);
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}
|
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}
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}
|
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groups
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};
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|
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for (i, (group, recipes)) in groups.iter().enumerate() {
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if i > 0 {
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println!();
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}
|
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|
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let no_groups = groups.contains_key(&None) && groups.len() == 1;
|
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|
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if !no_groups {
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print!("{list_prefix}");
|
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if let Some(group_name) = group {
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println!("[{group_name}]");
|
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} else {
|
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println!("(no group)");
|
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}
|
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}
|
|
|
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for recipe in recipes {
|
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for (i, name) in iter::once(&recipe.name())
|
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.chain(aliases.get(recipe.name()).unwrap_or(&Vec::new()))
|
|
.enumerate()
|
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{
|
|
let doc = if i == 0 {
|
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recipe.doc().map(Cow::Borrowed)
|
|
} else {
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Some(Cow::Owned(format!("alias for `{}`", recipe.name)))
|
|
};
|
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|
|
if let Some(doc) = &doc {
|
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if doc.lines().count() > 1 {
|
|
for line in doc.lines() {
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println!(
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"{list_prefix}{} {}",
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config.color.stdout().doc().paint("#"),
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config.color.stdout().doc().paint(line),
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
print!(
|
|
"{list_prefix}{}",
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RecipeSignature { name, recipe }.color_display(config.color.stdout())
|
|
);
|
|
|
|
if let Some(doc) = doc {
|
|
if doc.lines().count() <= 1 {
|
|
print!(
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"{:padding$}{} {}",
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"",
|
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config.color.stdout().doc().paint("#"),
|
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config.color.stdout().doc().paint(&doc),
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padding = max_signature_width.saturating_sub(signature_widths[name]) + 1,
|
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);
|
|
}
|
|
}
|
|
println!();
|
|
}
|
|
}
|
|
}
|
|
|
|
if config.list_submodules {
|
|
for (i, submodule) in module.modules(config).into_iter().enumerate() {
|
|
if i + groups.len() > 0 {
|
|
println!();
|
|
}
|
|
|
|
println!("{list_prefix}{}:", submodule.name());
|
|
|
|
Self::list_module(config, submodule, depth + 1);
|
|
}
|
|
} else {
|
|
for submodule in module.modules(config) {
|
|
println!("{list_prefix}{} ...", submodule.name(),);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn show<'src>(
|
|
config: &Config,
|
|
mut module: &Justfile<'src>,
|
|
path: &ModulePath,
|
|
) -> Result<(), Error<'src>> {
|
|
for name in &path.path[0..path.path.len() - 1] {
|
|
module = module
|
|
.modules
|
|
.get(name)
|
|
.ok_or_else(|| Error::UnknownSubmodule { path: path.clone() })?;
|
|
}
|
|
|
|
let name = path.path.last().unwrap();
|
|
|
|
if let Some(alias) = module.get_alias(name) {
|
|
let recipe = module.get_recipe(alias.target.name.lexeme()).unwrap();
|
|
println!("{alias}");
|
|
println!("{}", recipe.color_display(config.color.stdout()));
|
|
Ok(())
|
|
} else if let Some(recipe) = module.get_recipe(name) {
|
|
println!("{}", recipe.color_display(config.color.stdout()));
|
|
Ok(())
|
|
} else {
|
|
Err(Error::UnknownRecipes {
|
|
recipes: vec![name.to_owned()],
|
|
suggestion: module.suggest_recipe(name),
|
|
})
|
|
}
|
|
}
|
|
|
|
fn summary(config: &Config, justfile: &Justfile) {
|
|
let mut printed = 0;
|
|
Self::summary_recursive(config, &mut Vec::new(), &mut printed, justfile);
|
|
println!();
|
|
|
|
if printed == 0 && config.verbosity.loud() {
|
|
eprintln!("Justfile contains no recipes.");
|
|
}
|
|
}
|
|
|
|
fn summary_recursive<'a>(
|
|
config: &Config,
|
|
components: &mut Vec<&'a str>,
|
|
printed: &mut usize,
|
|
justfile: &'a Justfile,
|
|
) {
|
|
let path = components.join("::");
|
|
|
|
for recipe in justfile.public_recipes(config) {
|
|
if *printed > 0 {
|
|
print!(" ");
|
|
}
|
|
if path.is_empty() {
|
|
print!("{}", recipe.name());
|
|
} else {
|
|
print!("{}::{}", path, recipe.name());
|
|
}
|
|
*printed += 1;
|
|
}
|
|
|
|
for (name, module) in &justfile.modules {
|
|
components.push(name);
|
|
Self::summary_recursive(config, components, printed, module);
|
|
components.pop();
|
|
}
|
|
}
|
|
|
|
fn variables(justfile: &Justfile) {
|
|
for (i, (_, assignment)) in justfile.assignments.iter().enumerate() {
|
|
if i > 0 {
|
|
print!(" ");
|
|
}
|
|
print!("{}", assignment.name);
|
|
}
|
|
println!();
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn init_justfile() {
|
|
testing::compile(INIT_JUSTFILE);
|
|
}
|
|
}
|