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Refactor message printing in rm (#12799)
# Description Changes the iterator in `rm` to be an iterator over `Result<Option<String>, ShellError>` (an optional message or error) instead of an iterator over `Value`. Then, the iterator is consumed and each message is printed. This allows the `PipelineData::print_not_formatted` method to be removed.
This commit is contained in:
Ian Manske
GitHub
parent
948b299e65
commit
3b3f48202c
@ -3,7 +3,7 @@ use super::util::{get_rest_for_glob_pattern, try_interaction};
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use nu_engine::{command_prelude::*, env::current_dir};
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use nu_glob::MatchOptions;
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use nu_path::expand_path_with;
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use nu_protocol::NuGlob;
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use nu_protocol::{report_error_new, NuGlob};
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#[cfg(unix)]
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use std::os::unix::prelude::FileTypeExt;
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use std::{
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@ -118,8 +118,6 @@ fn rm(
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let interactive = call.has_flag(engine_state, stack, "interactive")?;
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let interactive_once = call.has_flag(engine_state, stack, "interactive-once")? && !interactive;
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let ctrlc = engine_state.ctrlc.clone();
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let mut paths = get_rest_for_glob_pattern(engine_state, stack, call, 0)?;
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if paths.is_empty() {
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@ -341,132 +339,130 @@ fn rm(
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}
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}
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all_targets
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.into_iter()
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.map(move |(f, span)| {
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let is_empty = || match f.read_dir() {
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Ok(mut p) => p.next().is_none(),
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Err(_) => false,
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};
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let iter = all_targets.into_iter().map(move |(f, span)| {
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let is_empty = || match f.read_dir() {
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Ok(mut p) => p.next().is_none(),
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Err(_) => false,
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};
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if let Ok(metadata) = f.symlink_metadata() {
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#[cfg(unix)]
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let is_socket = metadata.file_type().is_socket();
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#[cfg(unix)]
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let is_fifo = metadata.file_type().is_fifo();
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if let Ok(metadata) = f.symlink_metadata() {
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#[cfg(unix)]
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let is_socket = metadata.file_type().is_socket();
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#[cfg(unix)]
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let is_fifo = metadata.file_type().is_fifo();
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#[cfg(not(unix))]
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let is_socket = false;
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#[cfg(not(unix))]
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let is_fifo = false;
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#[cfg(not(unix))]
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let is_socket = false;
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#[cfg(not(unix))]
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let is_fifo = false;
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if metadata.is_file()
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|| metadata.file_type().is_symlink()
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|| recursive
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|| is_socket
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|| is_fifo
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|| is_empty()
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{
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let (interaction, confirmed) = try_interaction(
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interactive,
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format!("rm: remove '{}'? ", f.to_string_lossy()),
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);
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if metadata.is_file()
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|| metadata.file_type().is_symlink()
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|| recursive
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|| is_socket
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|| is_fifo
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|| is_empty()
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{
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let (interaction, confirmed) = try_interaction(
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interactive,
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format!("rm: remove '{}'? ", f.to_string_lossy()),
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);
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let result = if let Err(e) = interaction {
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let e = Error::new(ErrorKind::Other, &*e.to_string());
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Err(e)
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} else if interactive && !confirmed {
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Ok(())
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} else if TRASH_SUPPORTED && (trash || (rm_always_trash && !permanent)) {
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#[cfg(all(
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feature = "trash-support",
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not(any(target_os = "android", target_os = "ios"))
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))]
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{
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trash::delete(&f).map_err(|e: trash::Error| {
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Error::new(
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ErrorKind::Other,
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format!("{e:?}\nTry '--permanent' flag"),
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)
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})
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}
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// Should not be reachable since we error earlier if
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// these options are given on an unsupported platform
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#[cfg(any(
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not(feature = "trash-support"),
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target_os = "android",
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target_os = "ios"
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))]
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{
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unreachable!()
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}
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} else if metadata.is_symlink() {
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// In Windows, symlink pointing to a directory can be removed using
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// std::fs::remove_dir instead of std::fs::remove_file.
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#[cfg(windows)]
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{
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f.metadata().and_then(|metadata| {
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if metadata.is_dir() {
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std::fs::remove_dir(&f)
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} else {
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std::fs::remove_file(&f)
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}
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})
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}
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#[cfg(not(windows))]
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std::fs::remove_file(&f)
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} else if metadata.is_file() || is_socket || is_fifo {
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std::fs::remove_file(&f)
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} else {
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std::fs::remove_dir_all(&f)
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};
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if let Err(e) = result {
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let msg = format!("Could not delete {:}: {e:}", f.to_string_lossy());
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Value::error(ShellError::RemoveNotPossible { msg, span }, span)
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} else if verbose {
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let msg = if interactive && !confirmed {
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"not deleted"
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} else {
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"deleted"
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};
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let val = format!("{} {:}", msg, f.to_string_lossy());
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Value::string(val, span)
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} else {
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Value::nothing(span)
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let result = if let Err(e) = interaction {
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Err(Error::new(ErrorKind::Other, &*e.to_string()))
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} else if interactive && !confirmed {
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Ok(())
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} else if TRASH_SUPPORTED && (trash || (rm_always_trash && !permanent)) {
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#[cfg(all(
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feature = "trash-support",
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not(any(target_os = "android", target_os = "ios"))
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))]
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{
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trash::delete(&f).map_err(|e: trash::Error| {
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Error::new(ErrorKind::Other, format!("{e:?}\nTry '--permanent' flag"))
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})
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}
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// Should not be reachable since we error earlier if
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// these options are given on an unsupported platform
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#[cfg(any(
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not(feature = "trash-support"),
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target_os = "android",
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target_os = "ios"
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))]
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{
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unreachable!()
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}
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} else if metadata.is_symlink() {
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// In Windows, symlink pointing to a directory can be removed using
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// std::fs::remove_dir instead of std::fs::remove_file.
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#[cfg(windows)]
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{
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f.metadata().and_then(|metadata| {
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if metadata.is_dir() {
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std::fs::remove_dir(&f)
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} else {
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std::fs::remove_file(&f)
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}
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})
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}
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#[cfg(not(windows))]
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std::fs::remove_file(&f)
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} else if metadata.is_file() || is_socket || is_fifo {
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std::fs::remove_file(&f)
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} else {
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let error = format!("Cannot remove {:}. try --recursive", f.to_string_lossy());
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Value::error(
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ShellError::GenericError {
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error,
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msg: "cannot remove non-empty directory".into(),
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span: Some(span),
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help: None,
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inner: vec![],
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},
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span,
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)
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std::fs::remove_dir_all(&f)
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};
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if let Err(e) = result {
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let msg = format!("Could not delete {:}: {e:}", f.to_string_lossy());
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Err(ShellError::RemoveNotPossible { msg, span })
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} else if verbose {
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let msg = if interactive && !confirmed {
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"not deleted"
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} else {
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"deleted"
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};
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Ok(Some(format!("{} {:}", msg, f.to_string_lossy())))
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} else {
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Ok(None)
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}
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} else {
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let error = format!("no such file or directory: {:}", f.to_string_lossy());
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Value::error(
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ShellError::GenericError {
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error,
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msg: "no such file or directory".into(),
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span: Some(span),
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help: None,
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inner: vec![],
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},
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span,
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)
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let error = format!("Cannot remove {:}. try --recursive", f.to_string_lossy());
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Err(ShellError::GenericError {
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error,
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msg: "cannot remove non-empty directory".into(),
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span: Some(span),
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help: None,
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inner: vec![],
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})
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}
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})
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.filter(|x| !matches!(x.get_type(), Type::Nothing))
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.into_pipeline_data(span, ctrlc)
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.print_not_formatted(engine_state, false, true)?;
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} else {
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let error = format!("no such file or directory: {:}", f.to_string_lossy());
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Err(ShellError::GenericError {
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error,
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msg: "no such file or directory".into(),
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span: Some(span),
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help: None,
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inner: vec![],
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})
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}
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});
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for result in iter {
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if nu_utils::ctrl_c::was_pressed(&engine_state.ctrlc) {
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return Err(ShellError::InterruptedByUser {
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span: Some(call.head),
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});
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}
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match result {
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Ok(None) => {}
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Ok(Some(msg)) => eprintln!("{msg}"),
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Err(err) => report_error_new(engine_state, &err),
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}
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}
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Ok(PipelineData::empty())
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}
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@ -877,32 +877,6 @@ impl PipelineData {
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Ok(0)
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}
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/// Consume and print self data immediately.
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///
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/// Unlike [`.print()`] does not call `table` to format data and just prints it
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/// one element on a line
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/// * `no_newline` controls if we need to attach newline character to output.
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/// * `to_stderr` controls if data is output to stderr, when the value is false, the data is output to stdout.
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pub fn print_not_formatted(
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self,
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engine_state: &EngineState,
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no_newline: bool,
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to_stderr: bool,
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) -> Result<i64, ShellError> {
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if let PipelineData::ExternalStream {
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stdout: stream,
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stderr: stderr_stream,
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exit_code,
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..
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} = self
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{
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print_if_stream(stream, stderr_stream, to_stderr, exit_code)
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} else {
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let config = engine_state.get_config();
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self.write_all_and_flush(engine_state, config, no_newline, to_stderr)
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}
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}
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fn write_all_and_flush(
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self,
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engine_state: &EngineState,
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