Remove build-string command (#7144)

crates/nu-command/src/strings/build_string.rs

@@ -1,86 +0,0 @@
-use nu_engine::eval_expression;
-use nu_protocol::ast::Call;
-use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{
-    Category, Example, IntoPipelineData, PipelineData, ShellError, Signature, Span, SyntaxShape,
-    Type, Value,
-};
-
-#[derive(Clone)]
-pub struct BuildString;
-
-impl Command for BuildString {
-    fn name(&self) -> &str {
-        "build-string"
-    }
-
-    fn usage(&self) -> &str {
-        "Create a string from the arguments."
-    }
-
-    fn search_terms(&self) -> Vec<&str> {
-        vec!["concatenate", "join"]
-    }
-
-    fn signature(&self) -> nu_protocol::Signature {
-        Signature::build("build-string")
-            .rest("rest", SyntaxShape::String, "list of string")
-            .input_output_types(vec![(Type::Nothing, Type::String)])
-            .category(Category::Strings)
-    }
-
-    fn examples(&self) -> Vec<Example> {
-        vec![
-            Example {
-                example: "build-string a b c",
-                description: "Builds a string from letters a b c",
-                result: Some(Value::String {
-                    val: "abc".to_string(),
-                    span: Span::test_data(),
-                }),
-            },
-            Example {
-                example: r#"build-string $"(1 + 2)" = one ' ' plus ' ' two"#,
-                description: "Builds a string from subexpression separating words with spaces",
-                result: Some(Value::String {
-                    val: "3=one plus two".to_string(),
-                    span: Span::test_data(),
-                }),
-            },
-        ]
-    }
-
-    fn run(
-        &self,
-        engine_state: &EngineState,
-        stack: &mut Stack,
-        call: &Call,
-        _input: PipelineData,
-    ) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
-        let config = engine_state.get_config();
-        let output = call
-            .positional_iter()
-            .map(|expr| {
-                eval_expression(engine_state, stack, expr).map(|val| val.into_string(", ", config))
-            })
-            .collect::<Result<Vec<String>, ShellError>>()?;
-
-        Ok(Value::String {
-            val: output.join(""),
-            span: call.head,
-        }
-        .into_pipeline_data())
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn test_examples() {
-        use crate::test_examples;
-
-        test_examples(BuildString {})
-    }
-}

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

@@ -1,4 +1,3 @@
-mod build_string;
 mod char_;
 mod detect_columns;
 mod encode_decode;
@@ -8,7 +7,6 @@ mod size;
 mod split;
 mod str_;
 
-pub use build_string::BuildString;
 pub use char_::Char;
 pub use detect_columns::*;
 pub use encode_decode::*;