feat(task): support scripts in package.json (#17887)

This is a super basic initial implementation. We don't create a
`node_modules/.bin` folder at the moment and add it to the PATH like we
should which is necessary to make command name resolution in the
subprocess work properly (ex. you run a script that launches another
script that then tries to launch an "npx command"... this won't work
atm).

Closes #17492

1 files changed, 16 insertions, 23 deletions

diff --git a/cli/args/config_file.rs b/cli/args/config_file.rs
index 154692376..f7fd85579 100644
--- a/cli/args/config_file.rs
+++ b/cli/args/config_file.rs
@@ -18,6 +18,7 @@ use deno_core::serde_json;
 use deno_core::serde_json::json;
 use deno_core::serde_json::Value;
 use deno_core::ModuleSpecifier;
+use indexmap::IndexMap;
 use std::borrow::Cow;
 use std::collections::BTreeMap;
 use std::collections::HashMap;
@@ -760,9 +761,9 @@ impl ConfigFile {
 
   pub fn to_tasks_config(
     &self,
-  ) -> Result<Option<BTreeMap<String, String>>, AnyError> {
+  ) -> Result<Option<IndexMap<String, String>>, AnyError> {
     if let Some(config) = self.json.tasks.clone() {
-      let tasks_config: BTreeMap<String, String> =
+      let tasks_config: IndexMap<String, String> =
         serde_json::from_value(config)
           .context("Failed to parse \"tasks\" configuration")?;
       Ok(Some(tasks_config))
@@ -815,25 +816,22 @@ impl ConfigFile {
 
   pub fn resolve_tasks_config(
     &self,
-  ) -> Result<BTreeMap<String, String>, AnyError> {
+  ) -> Result<IndexMap<String, String>, AnyError> {
     let maybe_tasks_config = self.to_tasks_config()?;
-    if let Some(tasks_config) = maybe_tasks_config {
-      for key in tasks_config.keys() {
-        if key.is_empty() {
-          bail!("Configuration file task names cannot be empty");
-        } else if !key
-          .chars()
-          .all(|c| c.is_ascii_alphanumeric() || matches!(c, '_' | '-' | ':'))
-        {
-          bail!("Configuration file task names must only contain alpha-numeric characters, colons (:), underscores (_), or dashes (-). Task: {}", key);
-        } else if !key.chars().next().unwrap().is_ascii_alphabetic() {
-          bail!("Configuration file task names must start with an alphabetic character. Task: {}", key);
-        }
+    let tasks_config = maybe_tasks_config.unwrap_or_default();
+    for key in tasks_config.keys() {
+      if key.is_empty() {
+        bail!("Configuration file task names cannot be empty");
+      } else if !key
+        .chars()
+        .all(|c| c.is_ascii_alphanumeric() || matches!(c, '_' | '-' | ':'))
+      {
+        bail!("Configuration file task names must only contain alpha-numeric characters, colons (:), underscores (_), or dashes (-). Task: {}", key);
+      } else if !key.chars().next().unwrap().is_ascii_alphabetic() {
+        bail!("Configuration file task names must start with an alphabetic character. Task: {}", key);
       }
-      Ok(tasks_config)
-    } else {
-      bail!("No tasks found in configuration file")
     }
+    Ok(tasks_config)
   }
 
   pub fn to_lock_config(&self) -> Result<Option<LockConfig>, AnyError> {
@@ -1238,11 +1236,6 @@ mod tests {
   }
 
   #[test]
-  fn tasks_no_tasks() {
-    run_task_error_test(r#"{}"#, "No tasks found in configuration file");
-  }
-
-  #[test]
   fn task_name_invalid_chars() {
     run_task_error_test(
       r#"{