mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
e372fc73e8
A bit hacky, but it works. Essentially, this will check for all the scripts in the node_modules/.bin directory then force them to run with Deno via deno_task_shell.
500 lines
15 KiB
Rust
500 lines
15 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use crate::args::CliOptions;
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use crate::args::Flags;
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use crate::args::TaskFlags;
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use crate::colors;
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use crate::factory::CliFactory;
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use crate::npm::CliNpmResolver;
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use crate::npm::InnerCliNpmResolverRef;
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use crate::npm::ManagedCliNpmResolver;
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use crate::util::fs::canonicalize_path;
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use deno_core::anyhow::bail;
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use deno_core::anyhow::Context;
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use deno_core::error::AnyError;
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use deno_core::futures;
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use deno_core::futures::future::LocalBoxFuture;
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use deno_runtime::deno_node::NodeResolver;
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use deno_semver::package::PackageNv;
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use deno_task_shell::ExecuteResult;
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use deno_task_shell::ShellCommand;
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use deno_task_shell::ShellCommandContext;
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use indexmap::IndexMap;
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use lazy_regex::Lazy;
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use regex::Regex;
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use std::collections::HashMap;
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use std::path::Path;
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use std::path::PathBuf;
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use std::rc::Rc;
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use tokio::task::LocalSet;
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pub async fn execute_script(
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flags: Flags,
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task_flags: TaskFlags,
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) -> Result<i32, AnyError> {
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let factory = CliFactory::from_flags(flags).await?;
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let cli_options = factory.cli_options();
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let tasks_config = cli_options.resolve_tasks_config()?;
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let maybe_package_json = cli_options.maybe_package_json();
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let package_json_scripts = maybe_package_json
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.as_ref()
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.and_then(|p| p.scripts.clone())
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.unwrap_or_default();
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let task_name = match &task_flags.task {
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Some(task) => task,
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None => {
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print_available_tasks(&tasks_config, &package_json_scripts);
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return Ok(1);
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}
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};
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if let Some(script) = tasks_config.get(task_name) {
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let config_file_url = cli_options.maybe_config_file_specifier().unwrap();
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let config_file_path = if config_file_url.scheme() == "file" {
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config_file_url.to_file_path().unwrap()
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} else {
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bail!("Only local configuration files are supported")
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};
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let cwd = match task_flags.cwd {
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Some(path) => canonicalize_path(&PathBuf::from(path))?,
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None => config_file_path.parent().unwrap().to_owned(),
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};
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let script = get_script_with_args(script, cli_options);
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output_task(task_name, &script);
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let seq_list = deno_task_shell::parser::parse(&script)
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.with_context(|| format!("Error parsing script '{task_name}'."))?;
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let env_vars = collect_env_vars();
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let local = LocalSet::new();
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let future =
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deno_task_shell::execute(seq_list, env_vars, &cwd, Default::default());
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let exit_code = local.run_until(future).await;
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Ok(exit_code)
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} else if package_json_scripts.contains_key(task_name) {
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let package_json_deps_provider = factory.package_json_deps_provider();
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let npm_resolver = factory.npm_resolver().await?;
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let node_resolver = factory.node_resolver().await?;
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if let Some(package_deps) = package_json_deps_provider.deps() {
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for (key, value) in package_deps {
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if let Err(err) = value {
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log::info!(
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"{} Ignoring dependency '{}' in package.json because its version requirement failed to parse: {:#}",
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colors::yellow("Warning"),
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key,
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err,
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);
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}
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}
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}
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// install the npm packages if we're using a managed resolver
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if let Some(npm_resolver) = npm_resolver.as_managed() {
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npm_resolver.ensure_top_level_package_json_install().await?;
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npm_resolver.resolve_pending().await?;
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}
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let cwd = match task_flags.cwd {
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Some(path) => canonicalize_path(&PathBuf::from(path))?,
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None => maybe_package_json
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.as_ref()
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.unwrap()
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.path
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.parent()
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.unwrap()
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.to_owned(),
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};
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// At this point we already checked if the task name exists in package.json.
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// We can therefore check for "pre" and "post" scripts too, since we're only
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// dealing with package.json here and not deno.json
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let task_names = vec![
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format!("pre{}", task_name),
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task_name.clone(),
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format!("post{}", task_name),
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];
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for task_name in task_names {
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if let Some(script) = package_json_scripts.get(&task_name) {
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let script = get_script_with_args(script, cli_options);
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output_task(&task_name, &script);
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let seq_list = deno_task_shell::parser::parse(&script)
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.with_context(|| format!("Error parsing script '{task_name}'."))?;
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let npx_commands = match npm_resolver.as_inner() {
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InnerCliNpmResolverRef::Managed(npm_resolver) => {
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resolve_npm_commands(npm_resolver, node_resolver)?
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}
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InnerCliNpmResolverRef::Byonm(npm_resolver) => {
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let node_modules_dir =
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npm_resolver.root_node_modules_path().unwrap();
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resolve_npm_commands_from_bin_dir(node_modules_dir)?
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}
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};
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let env_vars = match npm_resolver.root_node_modules_path() {
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Some(dir_path) => collect_env_vars_with_node_modules_dir(dir_path),
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None => collect_env_vars(),
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};
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let local = LocalSet::new();
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let future =
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deno_task_shell::execute(seq_list, env_vars, &cwd, npx_commands);
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let exit_code = local.run_until(future).await;
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if exit_code > 0 {
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return Ok(exit_code);
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}
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}
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}
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Ok(0)
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} else {
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eprintln!("Task not found: {task_name}");
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print_available_tasks(&tasks_config, &package_json_scripts);
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Ok(1)
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}
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}
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fn get_script_with_args(script: &str, options: &CliOptions) -> String {
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let additional_args = options
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.argv()
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.iter()
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// surround all the additional arguments in double quotes
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// and sanitize any command substitution
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.map(|a| format!("\"{}\"", a.replace('"', "\\\"").replace('$', "\\$")))
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.collect::<Vec<_>>()
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.join(" ");
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let script = format!("{script} {additional_args}");
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script.trim().to_owned()
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}
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fn output_task(task_name: &str, script: &str) {
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log::info!(
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"{} {} {}",
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colors::green("Task"),
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colors::cyan(&task_name),
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script,
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);
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}
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fn collect_env_vars_with_node_modules_dir(
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node_modules_dir_path: &Path,
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) -> HashMap<String, String> {
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let mut env_vars = collect_env_vars();
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prepend_to_path(
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&mut env_vars,
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node_modules_dir_path
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.join(".bin")
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.to_string_lossy()
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.to_string(),
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);
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env_vars
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}
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fn prepend_to_path(env_vars: &mut HashMap<String, String>, value: String) {
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match env_vars.get_mut("PATH") {
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Some(path) => {
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if path.is_empty() {
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*path = value;
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} else {
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*path =
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format!("{}{}{}", value, if cfg!(windows) { ";" } else { ":" }, path);
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}
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}
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None => {
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env_vars.insert("PATH".to_string(), value);
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}
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}
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}
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fn collect_env_vars() -> HashMap<String, String> {
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// get the starting env vars (the PWD env var will be set by deno_task_shell)
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let mut env_vars = std::env::vars().collect::<HashMap<String, String>>();
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const INIT_CWD_NAME: &str = "INIT_CWD";
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if !env_vars.contains_key(INIT_CWD_NAME) {
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if let Ok(cwd) = std::env::current_dir() {
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// if not set, set an INIT_CWD env var that has the cwd
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env_vars
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.insert(INIT_CWD_NAME.to_string(), cwd.to_string_lossy().to_string());
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}
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}
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env_vars
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}
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fn print_available_tasks(
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// order can be important, so these use an index map
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tasks_config: &IndexMap<String, String>,
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package_json_scripts: &IndexMap<String, String>,
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) {
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eprintln!("{}", colors::green("Available tasks:"));
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let mut had_task = false;
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for (is_deno, (key, value)) in tasks_config.iter().map(|e| (true, e)).chain(
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package_json_scripts
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.iter()
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.filter(|(key, _)| !tasks_config.contains_key(*key))
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.map(|e| (false, e)),
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) {
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eprintln!(
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"- {}{}",
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colors::cyan(key),
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if is_deno {
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"".to_string()
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} else {
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format!(" {}", colors::italic_gray("(package.json)"))
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}
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);
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eprintln!(" {value}");
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had_task = true;
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}
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if !had_task {
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eprintln!(" {}", colors::red("No tasks found in configuration file"));
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}
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}
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struct NpxCommand;
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impl ShellCommand for NpxCommand {
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fn execute(
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&self,
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mut context: ShellCommandContext,
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) -> LocalBoxFuture<'static, ExecuteResult> {
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if let Some(first_arg) = context.args.get(0).cloned() {
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if let Some(command) = context.state.resolve_command(&first_arg) {
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let context = ShellCommandContext {
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args: context.args.iter().skip(1).cloned().collect::<Vec<_>>(),
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..context
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};
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command.execute(context)
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} else {
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let _ = context
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.stderr
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.write_line(&format!("npx: could not resolve command '{first_arg}'"));
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Box::pin(futures::future::ready(ExecuteResult::from_exit_code(1)))
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}
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} else {
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let _ = context.stderr.write_line("npx: missing command");
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Box::pin(futures::future::ready(ExecuteResult::from_exit_code(1)))
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}
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}
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}
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#[derive(Clone)]
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struct NpmPackageBinCommand {
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name: String,
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npm_package: PackageNv,
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}
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impl ShellCommand for NpmPackageBinCommand {
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fn execute(
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&self,
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context: ShellCommandContext,
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) -> LocalBoxFuture<'static, ExecuteResult> {
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let mut args = vec![
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"run".to_string(),
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"-A".to_string(),
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if self.npm_package.name == self.name {
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format!("npm:{}", self.npm_package)
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} else {
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format!("npm:{}/{}", self.npm_package, self.name)
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},
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];
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args.extend(context.args);
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let executable_command =
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deno_task_shell::ExecutableCommand::new("deno".to_string());
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executable_command.execute(ShellCommandContext { args, ..context })
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}
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}
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/// Runs a module in the node_modules folder.
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#[derive(Clone)]
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struct NodeModulesFileRunCommand {
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command_name: String,
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path: PathBuf,
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}
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impl ShellCommand for NodeModulesFileRunCommand {
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fn execute(
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&self,
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mut context: ShellCommandContext,
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) -> LocalBoxFuture<'static, ExecuteResult> {
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let mut args = vec![
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"run".to_string(),
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"--ext=js".to_string(),
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"-A".to_string(),
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self.path.to_string_lossy().to_string(),
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];
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args.extend(context.args);
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let executable_command =
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deno_task_shell::ExecutableCommand::new("deno".to_string());
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// set this environment variable so that the launched process knows the npm command name
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context
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.state
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.apply_env_var("DENO_INTERNAL_NPM_CMD_NAME", &self.command_name);
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executable_command.execute(ShellCommandContext { args, ..context })
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}
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}
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fn resolve_npm_commands_from_bin_dir(
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node_modules_dir: &Path,
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) -> Result<HashMap<String, Rc<dyn ShellCommand>>, AnyError> {
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let mut result = HashMap::<String, Rc<dyn ShellCommand>>::new();
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let bin_dir = node_modules_dir.join(".bin");
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log::debug!("Resolving commands in '{}'.", bin_dir.display());
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match std::fs::read_dir(&bin_dir) {
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Ok(entries) => {
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for entry in entries {
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let Ok(entry) = entry else {
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continue;
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};
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if let Some(command) = resolve_bin_dir_entry_command(entry) {
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result.insert(command.command_name.clone(), Rc::new(command));
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}
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}
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}
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Err(err) => {
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log::debug!("Failed read_dir for '{}': {:#}", bin_dir.display(), err);
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}
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}
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Ok(result)
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}
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fn resolve_bin_dir_entry_command(
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entry: std::fs::DirEntry,
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) -> Option<NodeModulesFileRunCommand> {
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if entry.path().extension().is_some() {
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return None; // only look at files without extensions (even on Windows)
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}
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let file_type = entry.file_type().ok()?;
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let path = if file_type.is_file() {
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entry.path()
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} else if file_type.is_symlink() {
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entry.path().canonicalize().ok()?
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} else {
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return None;
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};
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let text = std::fs::read_to_string(&path).ok()?;
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let command_name = entry.file_name().to_string_lossy().to_string();
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if let Some(path) = resolve_execution_path_from_npx_shim(path, &text) {
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log::debug!(
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"Resolved npx command '{}' to '{}'.",
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command_name,
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path.display()
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);
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Some(NodeModulesFileRunCommand { command_name, path })
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} else {
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log::debug!("Failed resolving npx command '{}'.", command_name);
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None
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}
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}
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/// This is not ideal, but it works ok because it allows us to bypass
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/// the shebang and execute the script directly with Deno.
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fn resolve_execution_path_from_npx_shim(
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file_path: PathBuf,
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text: &str,
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) -> Option<PathBuf> {
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static SCRIPT_PATH_RE: Lazy<Regex> =
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lazy_regex::lazy_regex!(r#""\$basedir\/([^"]+)" "\$@""#);
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if text.starts_with("#!/usr/bin/env node") {
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// launch this file itself because it's a JS file
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Some(file_path)
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} else {
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// Search for...
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// > "$basedir/../next/dist/bin/next" "$@"
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// ...which is what it will look like on Windows
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SCRIPT_PATH_RE
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.captures(text)
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.and_then(|c| c.get(1))
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.map(|relative_path| {
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file_path.parent().unwrap().join(relative_path.as_str())
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})
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}
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}
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fn resolve_npm_commands(
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npm_resolver: &ManagedCliNpmResolver,
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node_resolver: &NodeResolver,
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) -> Result<HashMap<String, Rc<dyn ShellCommand>>, AnyError> {
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let mut result = HashMap::new();
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let snapshot = npm_resolver.snapshot();
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for id in snapshot.top_level_packages() {
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let package_folder = npm_resolver.resolve_pkg_folder_from_pkg_id(id)?;
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let bin_commands =
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node_resolver.resolve_binary_commands(&package_folder)?;
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for bin_command in bin_commands {
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result.insert(
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bin_command.to_string(),
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Rc::new(NpmPackageBinCommand {
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name: bin_command,
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npm_package: id.nv.clone(),
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}) as Rc<dyn ShellCommand>,
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);
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}
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}
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if !result.contains_key("npx") {
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result.insert("npx".to_string(), Rc::new(NpxCommand));
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}
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Ok(result)
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_prepend_to_path() {
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let mut env_vars = HashMap::new();
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prepend_to_path(&mut env_vars, "/example".to_string());
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assert_eq!(
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env_vars,
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HashMap::from([("PATH".to_string(), "/example".to_string())])
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);
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prepend_to_path(&mut env_vars, "/example2".to_string());
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let separator = if cfg!(windows) { ";" } else { ":" };
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assert_eq!(
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env_vars,
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HashMap::from([(
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"PATH".to_string(),
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format!("/example2{}/example", separator)
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)])
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);
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env_vars.get_mut("PATH").unwrap().clear();
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prepend_to_path(&mut env_vars, "/example".to_string());
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assert_eq!(
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env_vars,
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HashMap::from([("PATH".to_string(), "/example".to_string())])
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);
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}
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#[test]
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fn test_resolve_execution_path_from_npx_shim() {
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// example shim on unix
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let unix_shim = r#"#!/usr/bin/env node
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"use strict";
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console.log('Hi!');
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"#;
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let path = PathBuf::from("/node_modules/.bin/example");
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assert_eq!(
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resolve_execution_path_from_npx_shim(path.clone(), unix_shim).unwrap(),
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path
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);
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// example shim on windows
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let windows_shim = r#"#!/bin/sh
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basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
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case `uname` in
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*CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
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esac
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if [ -x "$basedir/node" ]; then
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exec "$basedir/node" "$basedir/../example/bin/example" "$@"
|
|
else
|
|
exec node "$basedir/../example/bin/example" "$@"
|
|
fi"#;
|
|
assert_eq!(
|
|
resolve_execution_path_from_npx_shim(path.clone(), windows_shim).unwrap(),
|
|
path.parent().unwrap().join("../example/bin/example")
|
|
);
|
|
}
|
|
}
|