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denoland-deno/cli/tools/task.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::collections::HashMap;
use std::collections::HashSet;
use std::num::NonZeroUsize;
use std::path::Path;
use std::path::PathBuf;
use std::rc::Rc;
use std::sync::Arc;
use deno_config::workspace::FolderConfigs;
use deno_config::workspace::TaskDefinition;
use deno_config::workspace::TaskOrScript;
use deno_config::workspace::WorkspaceDirectory;
use deno_config::workspace::WorkspaceTasksConfig;
use deno_core::anyhow::anyhow;
use deno_core::anyhow::bail;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::futures::future::LocalBoxFuture;
use deno_core::futures::stream::futures_unordered;
use deno_core::futures::FutureExt;
use deno_core::futures::StreamExt;
use deno_core::url::Url;
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use deno_path_util::normalize_path;
use deno_runtime::deno_node::NodeResolver;
use deno_task_shell::ShellCommand;
use indexmap::IndexMap;
use regex::Regex;
use crate::args::CliOptions;
use crate::args::Flags;
use crate::args::TaskFlags;
use crate::colors;
use crate::factory::CliFactory;
use crate::npm::CliNpmResolver;
use crate::task_runner;
use crate::util::fs::canonicalize_path;
#[derive(Debug)]
struct PackageTaskInfo {
matched_tasks: Vec<String>,
tasks_config: WorkspaceTasksConfig,
}
pub async fn execute_script(
flags: Arc<Flags>,
task_flags: TaskFlags,
) -> Result<i32, AnyError> {
let factory = CliFactory::from_flags(flags);
let cli_options = factory.cli_options()?;
let start_dir = &cli_options.start_dir;
if !start_dir.has_deno_or_pkg_json() && !task_flags.eval {
bail!("deno task couldn't find deno.json(c). See https://docs.deno.com/go/config")
}
let force_use_pkg_json =
std::env::var_os(crate::task_runner::USE_PKG_JSON_HIDDEN_ENV_VAR_NAME)
.map(|v| {
// always remove so sub processes don't inherit this env var
std::env::remove_var(
crate::task_runner::USE_PKG_JSON_HIDDEN_ENV_VAR_NAME,
);
v == "1"
})
.unwrap_or(false);
fn arg_to_regex(input: &str) -> Result<regex::Regex, regex::Error> {
let mut regex_str = regex::escape(input);
regex_str = regex_str.replace("\\*", ".*");
Regex::new(&regex_str)
}
let packages_task_configs: Vec<PackageTaskInfo> = if let Some(filter) =
&task_flags.filter
{
let task_name = task_flags.task.as_ref().unwrap();
// Filter based on package name
let package_regex = arg_to_regex(filter)?;
let task_regex = arg_to_regex(task_name)?;
let mut packages_task_info: Vec<PackageTaskInfo> = vec![];
fn matches_package(
config: &FolderConfigs,
force_use_pkg_json: bool,
regex: &Regex,
) -> bool {
if !force_use_pkg_json {
if let Some(deno_json) = &config.deno_json {
if let Some(name) = &deno_json.json.name {
if regex.is_match(name) {
return true;
}
}
}
}
if let Some(package_json) = &config.pkg_json {
if let Some(name) = &package_json.name {
if regex.is_match(name) {
return true;
}
}
}
false
}
let workspace = cli_options.workspace();
for folder in workspace.config_folders() {
if !matches_package(folder.1, force_use_pkg_json, &package_regex) {
continue;
}
let member_dir = workspace.resolve_member_dir(folder.0);
let mut tasks_config = member_dir.to_tasks_config()?;
if force_use_pkg_json {
tasks_config = tasks_config.with_only_pkg_json();
}
// Any of the matched tasks could be a child task of another matched
// one. Therefore we need to filter these out to ensure that every
// task is only run once.
let mut matched: HashSet<String> = HashSet::new();
let mut visited: HashSet<String> = HashSet::new();
fn visit_task(
tasks_config: &WorkspaceTasksConfig,
visited: &mut HashSet<String>,
name: &str,
) {
if visited.contains(name) {
return;
}
visited.insert(name.to_string());
if let Some((_, TaskOrScript::Task(_, task))) = &tasks_config.task(name)
{
for dep in &task.dependencies {
visit_task(tasks_config, visited, dep);
}
}
}
// Match tasks in deno.json
for name in tasks_config.task_names() {
if task_regex.is_match(name) && !visited.contains(name) {
matched.insert(name.to_string());
visit_task(&tasks_config, &mut visited, name);
}
}
packages_task_info.push(PackageTaskInfo {
matched_tasks: matched
.iter()
.map(|s| s.to_string())
.collect::<Vec<_>>(),
tasks_config,
});
}
// Logging every task definition would be too spammy. Pnpm only
// logs a simple message too.
if packages_task_info
.iter()
.all(|config| config.matched_tasks.is_empty())
{
log::warn!(
"{}",
colors::red(format!(
"No matching task or script '{}' found in selected packages.",
task_name
))
);
return Ok(0);
}
// FIXME: Sort packages topologically
//
packages_task_info
} else {
let mut tasks_config = start_dir.to_tasks_config()?;
if force_use_pkg_json {
tasks_config = tasks_config.with_only_pkg_json()
}
let Some(task_name) = &task_flags.task else {
print_available_tasks(
&mut std::io::stdout(),
&cli_options.start_dir,
&tasks_config,
)?;
return Ok(0);
};
vec![PackageTaskInfo {
tasks_config,
matched_tasks: vec![task_name.to_string()],
}]
};
let npm_resolver = factory.npm_resolver().await?;
let node_resolver = factory.node_resolver().await?;
let env_vars = task_runner::real_env_vars();
let no_of_concurrent_tasks = if let Ok(value) = std::env::var("DENO_JOBS") {
value.parse::<NonZeroUsize>().ok()
} else {
std::thread::available_parallelism().ok()
}
.unwrap_or_else(|| NonZeroUsize::new(2).unwrap());
let task_runner = TaskRunner {
task_flags: &task_flags,
npm_resolver: npm_resolver.as_ref(),
node_resolver: node_resolver.as_ref(),
env_vars,
cli_options,
concurrency: no_of_concurrent_tasks.into(),
};
if task_flags.eval {
return task_runner
.run_deno_task(
&Url::from_directory_path(cli_options.initial_cwd()).unwrap(),
"",
&TaskDefinition {
command: task_flags.task.as_ref().unwrap().to_string(),
dependencies: vec![],
description: None,
},
)
.await;
}
for task_config in &packages_task_configs {
let exit_code = task_runner.run_tasks(task_config).await?;
if exit_code > 0 {
return Ok(exit_code);
}
}
Ok(0)
}
struct RunSingleOptions<'a> {
task_name: &'a str,
script: &'a str,
cwd: &'a Path,
custom_commands: HashMap<String, Rc<dyn ShellCommand>>,
}
struct TaskRunner<'a> {
task_flags: &'a TaskFlags,
npm_resolver: &'a dyn CliNpmResolver,
node_resolver: &'a NodeResolver,
env_vars: HashMap<String, String>,
cli_options: &'a CliOptions,
concurrency: usize,
}
impl<'a> TaskRunner<'a> {
pub async fn run_tasks(
&self,
pkg_tasks_config: &PackageTaskInfo,
) -> Result<i32, deno_core::anyhow::Error> {
match sort_tasks_topo(pkg_tasks_config) {
Ok(sorted) => {
self
.run_tasks_in_parallel(&pkg_tasks_config.tasks_config, sorted)
.await
}
Err(err) => match err {
TaskError::NotFound(name) => {
if self.task_flags.is_run {
return Err(anyhow!("Task not found: {}", name));
}
log::error!("Task not found: {}", name);
if log::log_enabled!(log::Level::Error) {
self.print_available_tasks(&pkg_tasks_config.tasks_config)?;
}
Ok(1)
}
TaskError::TaskDepCycle { path } => {
log::error!("Task cycle detected: {}", path.join(" -> "));
Ok(1)
}
},
}
}
pub fn print_available_tasks(
&self,
tasks_config: &WorkspaceTasksConfig,
) -> Result<(), std::io::Error> {
print_available_tasks(
&mut std::io::stderr(),
&self.cli_options.start_dir,
tasks_config,
)
}
async fn run_tasks_in_parallel(
&self,
tasks_config: &WorkspaceTasksConfig,
task_names: Vec<String>,
) -> Result<i32, deno_core::anyhow::Error> {
struct PendingTasksContext {
completed: HashSet<String>,
running: HashSet<String>,
task_names: Vec<String>,
}
impl PendingTasksContext {
fn has_remaining_tasks(&self) -> bool {
self.completed.len() < self.task_names.len()
}
fn mark_complete(&mut self, task_name: String) {
self.running.remove(&task_name);
self.completed.insert(task_name);
}
fn get_next_task<'a>(
&mut self,
runner: &'a TaskRunner<'a>,
tasks_config: &'a WorkspaceTasksConfig,
) -> Option<LocalBoxFuture<'a, Result<(i32, String), AnyError>>> {
for name in &self.task_names {
if self.completed.contains(name) || self.running.contains(name) {
continue;
}
let Some((folder_url, task_or_script)) = tasks_config.task(name)
else {
continue;
};
let should_run = match task_or_script {
TaskOrScript::Task(_, def) => def
.dependencies
.iter()
.all(|dep| self.completed.contains(dep)),
TaskOrScript::Script(_, _) => true,
};
if !should_run {
continue;
}
self.running.insert(name.clone());
let name = name.clone();
return Some(
async move {
match task_or_script {
TaskOrScript::Task(_, def) => {
runner.run_deno_task(folder_url, &name, def).await
}
TaskOrScript::Script(scripts, _) => {
runner.run_npm_script(folder_url, &name, scripts).await
}
}
.map(|exit_code| (exit_code, name))
}
.boxed_local(),
);
}
None
}
}
let mut context = PendingTasksContext {
completed: HashSet::with_capacity(task_names.len()),
running: HashSet::with_capacity(self.concurrency),
task_names,
};
let mut queue = futures_unordered::FuturesUnordered::new();
while context.has_remaining_tasks() {
while queue.len() < self.concurrency {
if let Some(task) = context.get_next_task(self, tasks_config) {
queue.push(task);
} else {
break;
}
}
// If queue is empty at this point, then there are no more tasks in the queue.
let Some(result) = queue.next().await else {
debug_assert_eq!(context.task_names.len(), 0);
break;
};
let (exit_code, name) = result?;
if exit_code > 0 {
return Ok(exit_code);
}
context.mark_complete(name);
}
Ok(0)
}
pub async fn run_deno_task(
&self,
dir_url: &Url,
task_name: &str,
definition: &TaskDefinition,
) -> Result<i32, deno_core::anyhow::Error> {
let cwd = match &self.task_flags.cwd {
Some(path) => canonicalize_path(&PathBuf::from(path))
.context("failed canonicalizing --cwd")?,
None => normalize_path(dir_url.to_file_path().unwrap()),
};
let custom_commands = task_runner::resolve_custom_commands(
self.npm_resolver,
self.node_resolver,
)?;
self
.run_single(RunSingleOptions {
task_name,
script: &definition.command,
cwd: &cwd,
custom_commands,
})
.await
}
pub async fn run_npm_script(
&self,
dir_url: &Url,
task_name: &str,
scripts: &IndexMap<String, String>,
) -> Result<i32, deno_core::anyhow::Error> {
// ensure the npm packages are installed if using a managed resolver
if let Some(npm_resolver) = self.npm_resolver.as_managed() {
npm_resolver.ensure_top_level_package_json_install().await?;
}
let cwd = match &self.task_flags.cwd {
Some(path) => canonicalize_path(&PathBuf::from(path))?,
None => normalize_path(dir_url.to_file_path().unwrap()),
};
// At this point we already checked if the task name exists in package.json.
// We can therefore check for "pre" and "post" scripts too, since we're only
// dealing with package.json here and not deno.json
let task_names = vec![
format!("pre{}", task_name),
task_name.to_string(),
format!("post{}", task_name),
];
let custom_commands = task_runner::resolve_custom_commands(
self.npm_resolver,
self.node_resolver,
)?;
for task_name in &task_names {
if let Some(script) = scripts.get(task_name) {
let exit_code = self
.run_single(RunSingleOptions {
task_name,
script,
cwd: &cwd,
custom_commands: custom_commands.clone(),
})
.await?;
if exit_code > 0 {
return Ok(exit_code);
}
}
}
Ok(0)
}
async fn run_single(
&self,
opts: RunSingleOptions<'_>,
) -> Result<i32, AnyError> {
let RunSingleOptions {
task_name,
script,
cwd,
custom_commands,
} = opts;
output_task(
opts.task_name,
&task_runner::get_script_with_args(script, self.cli_options.argv()),
);
Ok(
task_runner::run_task(task_runner::RunTaskOptions {
task_name,
script,
cwd,
env_vars: self.env_vars.clone(),
custom_commands,
init_cwd: self.cli_options.initial_cwd(),
argv: self.cli_options.argv(),
root_node_modules_dir: self.npm_resolver.root_node_modules_path(),
stdio: None,
})
.await?
.exit_code,
)
}
}
#[derive(Debug)]
enum TaskError {
NotFound(String),
TaskDepCycle { path: Vec<String> },
}
fn sort_tasks_topo(
pkg_task_config: &PackageTaskInfo,
) -> Result<Vec<String>, TaskError> {
fn sort_visit<'a>(
name: &'a str,
sorted: &mut Vec<String>,
mut path: Vec<&'a str>,
tasks_config: &'a WorkspaceTasksConfig,
) -> Result<(), TaskError> {
// Already sorted
if sorted.iter().any(|sorted_name| sorted_name == name) {
return Ok(());
}
// Graph has a cycle
if path.contains(&name) {
path.push(name);
return Err(TaskError::TaskDepCycle {
path: path.iter().map(|s| s.to_string()).collect(),
});
}
let Some((_, task_or_script)) = tasks_config.task(name) else {
return Err(TaskError::NotFound(name.to_string()));
};
if let TaskOrScript::Task(_, task) = task_or_script {
for dep in &task.dependencies {
let mut path = path.clone();
path.push(name);
sort_visit(dep, sorted, path, tasks_config)?
}
}
sorted.push(name.to_string());
Ok(())
}
let mut sorted: Vec<String> = vec![];
for name in &pkg_task_config.matched_tasks {
sort_visit(name, &mut sorted, Vec::new(), &pkg_task_config.tasks_config)?;
}
Ok(sorted)
}
fn output_task(task_name: &str, script: &str) {
log::info!(
"{} {} {}",
colors::green("Task"),
colors::cyan(task_name),
script,
);
}
fn print_available_tasks(
writer: &mut dyn std::io::Write,
workspace_dir: &Arc<WorkspaceDirectory>,
tasks_config: &WorkspaceTasksConfig,
) -> Result<(), std::io::Error> {
writeln!(writer, "{}", colors::green("Available tasks:"))?;
let is_cwd_root_dir = tasks_config.root.is_none();
if tasks_config.is_empty() {
writeln!(
writer,
" {}",
colors::red("No tasks found in configuration file")
)?;
return Ok(());
}
struct AvailableTaskDescription {
is_root: bool,
is_deno: bool,
name: String,
task: TaskDefinition,
}
let mut seen_task_names = HashSet::with_capacity(tasks_config.tasks_count());
let mut task_descriptions = Vec::with_capacity(tasks_config.tasks_count());
for maybe_config in [&tasks_config.member, &tasks_config.root] {
let Some(config) = maybe_config else {
continue;
};
if let Some(config) = config.deno_json.as_ref() {
let is_root = !is_cwd_root_dir
&& config.folder_url == *workspace_dir.workspace.root_dir().as_ref();
for (name, definition) in &config.tasks {
if !seen_task_names.insert(name) {
continue; // already seen
}
task_descriptions.push(AvailableTaskDescription {
is_root,
is_deno: true,
name: name.to_string(),
task: definition.clone(),
});
}
}
if let Some(config) = config.package_json.as_ref() {
let is_root = !is_cwd_root_dir
&& config.folder_url == *workspace_dir.workspace.root_dir().as_ref();
for (name, script) in &config.tasks {
if !seen_task_names.insert(name) {
continue; // already seen
}
task_descriptions.push(AvailableTaskDescription {
is_root,
is_deno: false,
name: name.to_string(),
task: deno_config::deno_json::TaskDefinition {
command: script.to_string(),
dependencies: vec![],
description: None,
},
});
}
}
}
for desc in task_descriptions {
writeln!(
writer,
"- {}{}",
colors::cyan(desc.name),
if desc.is_root {
if desc.is_deno {
format!(" {}", colors::italic_gray("(workspace)"))
} else {
format!(" {}", colors::italic_gray("(workspace package.json)"))
}
} else if desc.is_deno {
"".to_string()
} else {
format!(" {}", colors::italic_gray("(package.json)"))
}
)?;
if let Some(description) = &desc.task.description {
let slash_slash = colors::italic_gray("//");
writeln!(
writer,
" {slash_slash} {}",
colors::italic_gray(description)
)?;
}
writeln!(writer, " {}", desc.task.command)?;
if !desc.task.dependencies.is_empty() {
writeln!(
writer,
" {} {}",
colors::gray("depends on:"),
colors::cyan(desc.task.dependencies.join(", "))
)?;
}
}
Ok(())
}