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Add rest and glob support to 'open' (#8506)
# Description This adds two different features to `open`: * The ability to pass more than one file to `open`. * Support for using globs in the filenames `open` will create a list stream and stream the output if there is more than one file opened Examples: ``` open file1.csv file2.csv file3.csv ``` ``` open *.nu | where $it =~ "echo" ``` # User-Facing Changes Multi-file and glob support in `open`. Original `open` functionality should continue as before. # Tests + Formatting Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
This commit is contained in:
JT
GitHub
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commit
0ca49091c0
@ -1,10 +1,10 @@
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use nu_engine::{eval_block, CallExt};
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use nu_engine::{current_dir, eval_block, CallExt};
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::util::BufferedReader;
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use nu_protocol::{
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Category, Example, PipelineData, RawStream, ShellError, Signature, Spanned, SyntaxShape, Type,
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Value,
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Category, Example, IntoInterruptiblePipelineData, PipelineData, RawStream, ShellError,
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Signature, Spanned, SyntaxShape, Type, Value,
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};
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use std::io::BufReader;
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@ -38,6 +38,11 @@ impl Command for Open {
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Signature::build("open")
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.input_output_types(vec![(Type::Nothing, Type::Any), (Type::String, Type::Any)])
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.optional("filename", SyntaxShape::Filepath, "the filename to use")
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.rest(
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"filenames",
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SyntaxShape::Filepath,
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"optional additional files to open",
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)
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.switch("raw", "open file as raw binary", Some('r'))
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.category(Category::FileSystem)
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}
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@ -52,24 +57,16 @@ impl Command for Open {
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let raw = call.has_flag("raw");
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let call_span = call.head;
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let ctrlc = engine_state.ctrlc.clone();
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let path = call.opt::<Spanned<String>>(engine_state, stack, 0)?;
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let cwd = current_dir(engine_state, stack)?;
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let req_path = call.opt::<Spanned<String>>(engine_state, stack, 0)?;
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let mut path_params = call.rest::<Spanned<String>>(engine_state, stack, 1)?;
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let path = {
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if let Some(path_val) = path {
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Some(Spanned {
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item: nu_utils::strip_ansi_string_unlikely(path_val.item),
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span: path_val.span,
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})
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} else {
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path
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}
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};
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// FIXME: JT: what is this doing here?
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let path = if let Some(path) = path {
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path
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if let Some(filename) = req_path {
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path_params.insert(0, filename);
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} else {
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// Collect a filename from the input
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match input {
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let filename = match input {
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PipelineData::Value(Value::Nothing { .. }, ..) => {
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return Err(ShellError::MissingParameter {
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param_name: "needs filename".to_string(),
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@ -83,104 +80,143 @@ impl Command for Open {
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span: call.head,
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});
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}
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}
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};
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let arg_span = path.span;
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let path_no_whitespace = &path.item.trim_end_matches(|x| matches!(x, '\x09'..='\x0d'));
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let path = Path::new(path_no_whitespace);
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if permission_denied(path) {
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#[cfg(unix)]
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let error_msg = match path.metadata() {
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Ok(md) => format!(
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"The permissions of {:o} does not allow access for this user",
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md.permissions().mode() & 0o0777
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),
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Err(e) => e.to_string(),
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};
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#[cfg(not(unix))]
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let error_msg = String::from("Permission denied");
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Err(ShellError::GenericError(
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"Permission denied".into(),
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error_msg,
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Some(arg_span),
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None,
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Vec::new(),
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))
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} else {
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#[cfg(feature = "sqlite")]
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if !raw {
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let res = SQLiteDatabase::try_from_path(path, arg_span, ctrlc.clone())
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.map(|db| db.into_value(call.head).into_pipeline_data());
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path_params.insert(0, filename);
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}
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if res.is_ok() {
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return res;
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let mut output = vec![];
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for path in path_params.into_iter() {
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//FIXME: `open` should not have to do this
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let path = {
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Spanned {
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item: nu_utils::strip_ansi_string_unlikely(path.item),
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span: path.span,
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}
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}
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};
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let file = match std::fs::File::open(path) {
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Ok(file) => file,
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Err(err) => {
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let arg_span = path.span;
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// let path_no_whitespace = &path.item.trim_end_matches(|x| matches!(x, '\x09'..='\x0d'));
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for path in nu_engine::glob_from(&path, &cwd, call_span, None)?.1 {
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let path = path?;
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let path = Path::new(&path);
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if permission_denied(path) {
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#[cfg(unix)]
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let error_msg = match path.metadata() {
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Ok(md) => format!(
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"The permissions of {:o} does not allow access for this user",
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md.permissions().mode() & 0o0777
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),
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Err(e) => e.to_string(),
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};
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#[cfg(not(unix))]
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let error_msg = String::from("Permission denied");
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return Err(ShellError::GenericError(
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"Permission denied".into(),
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err.to_string(),
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error_msg,
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Some(arg_span),
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None,
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Vec::new(),
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));
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}
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};
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} else {
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#[cfg(feature = "sqlite")]
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if !raw {
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let res = SQLiteDatabase::try_from_path(path, arg_span, ctrlc.clone())
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.map(|db| db.into_value(call.head).into_pipeline_data());
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let buf_reader = BufReader::new(file);
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let output = PipelineData::ExternalStream {
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stdout: Some(RawStream::new(
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Box::new(BufferedReader { input: buf_reader }),
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ctrlc,
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call_span,
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None,
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)),
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stderr: None,
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exit_code: None,
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span: call_span,
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metadata: None,
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trim_end_newline: false,
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};
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let ext = if raw {
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None
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} else {
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path.extension()
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.map(|name| name.to_string_lossy().to_string())
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};
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if let Some(ext) = ext {
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match engine_state.find_decl(format!("from {ext}").as_bytes(), &[]) {
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Some(converter_id) => {
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let decl = engine_state.get_decl(converter_id);
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if let Some(block_id) = decl.get_block_id() {
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let block = engine_state.get_block(block_id);
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eval_block(engine_state, stack, block, output, false, false)
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} else {
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decl.run(engine_state, stack, &Call::new(call_span), output)
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if res.is_ok() {
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return res;
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}
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.map_err(|inner| {
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ShellError::GenericError(
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format!("Error while parsing as {ext}"),
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format!("Could not parse '{}' with `from {}`", path.display(), ext),
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Some(arg_span),
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Some(format!("Check out `help from {}` or `help from` for more options or open raw data with `open --raw '{}'`", ext, path.display())),
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vec![inner],
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)
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})
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}
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None => Ok(output),
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let file = match std::fs::File::open(path) {
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Ok(file) => file,
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Err(err) => {
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return Err(ShellError::GenericError(
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"Permission denied".into(),
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err.to_string(),
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Some(arg_span),
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None,
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Vec::new(),
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));
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}
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};
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let buf_reader = BufReader::new(file);
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let file_contents = PipelineData::ExternalStream {
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stdout: Some(RawStream::new(
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Box::new(BufferedReader { input: buf_reader }),
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ctrlc.clone(),
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call_span,
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None,
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)),
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stderr: None,
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exit_code: None,
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span: call_span,
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metadata: None,
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trim_end_newline: false,
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};
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let ext = if raw {
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None
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} else {
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path.extension()
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.map(|name| name.to_string_lossy().to_string())
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};
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if let Some(ext) = ext {
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match engine_state.find_decl(format!("from {ext}").as_bytes(), &[]) {
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Some(converter_id) => {
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let decl = engine_state.get_decl(converter_id);
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let command_output = if let Some(block_id) = decl.get_block_id() {
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let block = engine_state.get_block(block_id);
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eval_block(
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engine_state,
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stack,
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block,
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file_contents,
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false,
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false,
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)
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} else {
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decl.run(
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engine_state,
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stack,
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&Call::new(call_span),
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file_contents,
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)
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};
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output.push(command_output.map_err(|inner| {
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ShellError::GenericError(
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format!("Error while parsing as {ext}"),
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format!("Could not parse '{}' with `from {}`", path.display(), ext),
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Some(arg_span),
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Some(format!("Check out `help from {}` or `help from` for more options or open raw data with `open --raw '{}'`", ext, path.display())),
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vec![inner],
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)
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})?);
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}
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None => output.push(file_contents),
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}
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} else {
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output.push(file_contents)
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}
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}
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} else {
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Ok(output)
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}
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}
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if output.is_empty() {
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Ok(PipelineData::Empty)
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} else if output.len() == 1 {
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Ok(output.remove(0))
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} else {
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Ok(output.into_iter().flatten().into_pipeline_data(ctrlc))
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}
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}
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fn examples(&self) -> Vec<nu_protocol::Example> {
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@ -222,7 +222,7 @@ fn errors_if_file_not_found() {
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//
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// This seems to be not directly affected by localization compared to the OS
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// provided error message
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let expected = "(os error 2)";
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let expected = "not found";
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assert!(
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actual.err.contains(expected),
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@ -232,27 +232,28 @@ fn errors_if_file_not_found() {
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);
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}
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// FIXME: jt: I think `open` on a directory is confusing. We should make discuss this one a bit more
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#[ignore]
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#[test]
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fn open_dir_is_ls() {
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Playground::setup("open_dir", |dirs, sandbox| {
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sandbox.with_files(vec![
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EmptyFile("yehuda.txt"),
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EmptyFile("jttxt"),
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EmptyFile("andres.txt"),
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]);
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fn open_wildcard() {
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let actual = nu!(
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cwd: "tests/fixtures/formats", pipeline(
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r#"
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open *.nu | where $it =~ echo | length
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"#
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));
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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r#"
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open .
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| length
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"#
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));
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assert_eq!(actual.out, "3")
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}
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assert_eq!(actual.out, "3");
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})
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#[test]
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fn open_multiple_files() {
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let actual = nu!(
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cwd: "tests/fixtures/formats", pipeline(
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r#"
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open caco3_plastics.csv caco3_plastics.tsv | get tariff_item | math sum
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"#
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));
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assert_eq!(actual.out, "58309279992")
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}
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#[test]
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