Making coreutils umkdir as the default mkdir (#12007)

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# Description
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`umkdir` was added in #10785, I think it's time to replace the default
one.

# After Submitting

Remove the old `mkdir` command and making coreutils' `umkdir` as the
default

crates/nu-command/src/default_context.rs

@@ -203,7 +203,6 @@ pub fn add_shell_command_context(mut engine_state: EngineState) -> EngineState {
         bind_command! {
             Cd,
             Ls,
-            Mkdir,
             UMkdir,
             Mktemp,
             Mv,

crates/nu-command/src/filesystem/mkdir.rs

@@ -1,108 +0,0 @@
-use std::collections::VecDeque;
-
-use nu_engine::env::current_dir;
-use nu_engine::CallExt;
-use nu_protocol::ast::Call;
-use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{
-    Category, Example, IntoInterruptiblePipelineData, PipelineData, ShellError, Signature,
-    SyntaxShape, Type, Value,
-};
-
-#[derive(Clone)]
-pub struct Mkdir;
-
-impl Command for Mkdir {
-    fn name(&self) -> &str {
-        "mkdir"
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::build("mkdir")
-            .input_output_types(vec![(Type::Nothing, Type::Nothing)])
-            .rest(
-                "rest",
-                SyntaxShape::Directory,
-                "The name(s) of the path(s) to create.",
-            )
-            .switch("verbose", "print created path(s).", Some('v'))
-            .category(Category::FileSystem)
-    }
-
-    fn usage(&self) -> &str {
-        "Make directories, creates intermediary directories as required."
-    }
-
-    fn search_terms(&self) -> Vec<&str> {
-        vec!["directory", "folder", "create", "make_dirs"]
-    }
-
-    fn run(
-        &self,
-        engine_state: &EngineState,
-        stack: &mut Stack,
-        call: &Call,
-        _input: PipelineData,
-    ) -> Result<PipelineData, ShellError> {
-        let path = current_dir(engine_state, stack)?;
-        let mut directories = call
-            .rest::<String>(engine_state, stack, 0)?
-            .into_iter()
-            .map(|dir| path.join(dir))
-            .peekable();
-
-        let is_verbose = call.has_flag(engine_state, stack, "verbose")?;
-        let mut stream: VecDeque<Value> = VecDeque::new();
-
-        if directories.peek().is_none() {
-            return Err(ShellError::MissingParameter {
-                param_name: "requires directory paths".to_string(),
-                span: call.head,
-            });
-        }
-
-        for (i, dir) in directories.enumerate() {
-            let span = call
-                .positional_nth(i)
-                .expect("already checked through directories")
-                .span;
-            let dir_res = std::fs::create_dir_all(&dir);
-
-            if let Err(reason) = dir_res {
-                return Err(ShellError::CreateNotPossible {
-                    msg: format!("failed to create directory: {reason}"),
-                    span: call
-                        .positional_nth(i)
-                        .expect("already checked through directories")
-                        .span,
-                });
-            }
-
-            if is_verbose {
-                let val = format!("{:}", dir.to_string_lossy());
-                stream.push_back(Value::string(val, span));
-            }
-        }
-
-        stream
-            .into_iter()
-            .into_pipeline_data(engine_state.ctrlc.clone())
-            .print_not_formatted(engine_state, false, true)?;
-        Ok(PipelineData::empty())
-    }
-
-    fn examples(&self) -> Vec<Example> {
-        vec![
-            Example {
-                description: "Make a directory named foo",
-                example: "mkdir foo",
-                result: None,
-            },
-            Example {
-                description: "Make multiple directories and show the paths created",
-                example: "mkdir -v foo/bar foo2",
-                result: None,
-            },
-        ]
-    }
-}

crates/nu-command/src/filesystem/mod.rs

@@ -2,7 +2,6 @@ mod cd;
 mod du;
 mod glob;
 mod ls;
-mod mkdir;
 mod mktemp;
 mod mv;
 mod open;
@@ -21,7 +20,6 @@ pub use cd::Cd;
 pub use du::Du;
 pub use glob::Glob;
 pub use ls::Ls;
-pub use mkdir::Mkdir;
 pub use mktemp::Mktemp;
 pub use mv::Mv;
 pub use rm::Rm;

crates/nu-command/src/filesystem/umkdir.rs

@@ -16,7 +16,7 @@ const DEFAULT_MODE: u32 = 0o777;
 
 impl Command for UMkdir {
     fn name(&self) -> &str {
-        "umkdir"
+        "mkdir"
     }
 
     fn usage(&self) -> &str {
@@ -28,7 +28,7 @@ impl Command for UMkdir {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("umkdir")
+        Signature::build("mkdir")
             .input_output_types(vec![(Type::Nothing, Type::Nothing)])
             .rest(
                 "rest",
@@ -85,12 +85,12 @@ impl Command for UMkdir {
         vec![
             Example {
                 description: "Make a directory named foo",
-                example: "umkdir foo",
+                example: "mkdir foo",
                 result: None,
             },
             Example {
                 description: "Make multiple directories and show the paths created",
-                example: "umkdir -v foo/bar foo2",
+                example: "mkdir -v foo/bar foo2",
                 result: None,
             },
         ]