feat: added *:_default task name (#3690)

Fixes #2212

docs/tasks/file-tasks.md

@@ -96,6 +96,7 @@ when loaded.
 mise-tasks
 ├── build
 └── test
+    ├── _default
     ├── integration
     └── units
 ```
@@ -105,9 +106,10 @@ Running `mise tasks` will give the below output:
 ```text
 $ mise tasks
 Name              Description Source
-build                         .../mise-tasks/build
-test:integration              .../mise-tasks/test/integration
-test:units                    .../mise-tasks/test/units
+build                         ./mise-tasks/build
+test                          ./mise-tasks/test/_default
+test:integration              ./mise-tasks/test/integration
+test:units                    ./mise-tasks/test/units
 ```
 
 ## Arguments

e2e/tasks/test_task_default

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+assert "mise task add --file foo:bar:baz -- echo baz"
+assert "mise task add --file foo:bar -- echo bar"
+ls -lR .
+
+assert "mise tasks" "foo:bar
+foo:bar:baz"
+assert "mise task run foo:bar:baz" "baz"
+assert "mise task run foo:bar" "bar"

src/cli/tasks/add.rs

@@ -2,6 +2,7 @@ use crate::config::config_file;
 use crate::task::Task;
 use crate::{config, file};
 use eyre::Result;
+use std::path::MAIN_SEPARATOR_STR;
 use toml_edit::Item;
 
 /// Create a new task
@@ -69,7 +70,10 @@ pub struct TasksAdd {
 impl TasksAdd {
     pub fn run(self) -> Result<()> {
         if self.file {
-            let path = Task::task_dir().join(&self.task);
+            let mut path = Task::task_dir().join(self.task.replace(':', MAIN_SEPARATOR_STR));
+            if path.is_dir() {
+                path = path.join("_default");
+            }
             let mut lines = vec![format!(
                 "#!/usr/bin/env {}",
                 self.shell.clone().unwrap_or("bash".into())
@@ -123,6 +127,7 @@ impl TasksAdd {
             }
             file::create_dir_all(path.parent().unwrap())?;
             file::write(&path, lines.join("\n"))?;
+            file::make_executable(&path)?;
         } else {
             let path = config::local_toml_config_path();
             let mut doc: toml_edit::DocumentMut =

src/task/mod.rs

@@ -461,7 +461,7 @@ impl Task {
 }
 
 fn name_from_path(prefix: impl AsRef<Path>, path: impl AsRef<Path>) -> Result<String> {
-    Ok(path
+    let name = path
         .as_ref()
         .strip_prefix(prefix)
         .map(|p| match p {
@@ -476,7 +476,12 @@ fn name_from_path(prefix: impl AsRef<Path>, path: impl AsRef<Path>) -> Result<St
         .map(path::Component::as_os_str)
         .map(ffi::OsStr::to_string_lossy)
         .map(|s| s.replace(':', "_"))
-        .join(":"))
+        .join(":");
+    if let Some(name) = name.strip_suffix(":_default") {
+        Ok(name.to_string())
+    } else {
+        Ok(name)
+    }
 }
 
 fn match_tasks(tasks: &BTreeMap<String, &Task>, td: &TaskDep) -> Result<Vec<Task>> {