forked from extern/nushell
Refactor classified.rs into separate modules.
Adds modules for internal, external, and dynamic commands, as well as the pipeline functionality. These are exported as their old names from the classified module so as to keep its "interface" the same.
This commit is contained in:
Jason Gedge
Yehuda Katz
parent
8f9dd6516e
commit
4e9afd6698
@ -1,6 +1,6 @@
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use crate::commands::classified::{
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run_external_command, run_internal_command, ClassifiedInputStream, StreamNext,
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};
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use crate::commands::classified::external::{run_external_command, StreamNext};
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use crate::commands::classified::internal::run_internal_command;
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use crate::commands::classified::ClassifiedInputStream;
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use crate::commands::plugin::JsonRpc;
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use crate::commands::plugin::{PluginCommand, PluginSink};
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use crate::commands::whole_stream_command;
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@ -1,15 +1,16 @@
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use super::ClassifiedInputStream;
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use crate::data::value;
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use crate::prelude::*;
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use bytes::{BufMut, BytesMut};
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use futures::stream::StreamExt;
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use futures_codec::{Decoder, Encoder, Framed};
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use log::trace;
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use nu_errors::ShellError;
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use nu_parser::ExternalCommand;
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use nu_protocol::Value;
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use std::io::{Error, ErrorKind};
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use subprocess::Exec;
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use super::ClassifiedInputStream;
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/// A simple `Codec` implementation that splits up data into lines.
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pub struct LinesCodec {}
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@ -46,36 +47,6 @@ impl Decoder for LinesCodec {
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}
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}
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#[derive(Debug, Clone, Eq, PartialEq)]
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pub struct Command {
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pub(crate) name: String,
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pub(crate) name_tag: Tag,
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pub(crate) args: ExternalArgs,
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}
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impl HasSpan for Command {
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fn span(&self) -> Span {
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self.name_tag.span.until(self.args.span)
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}
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}
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impl PrettyDebug for Command {
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fn pretty(&self) -> DebugDocBuilder {
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b::typed(
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"external command",
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b::description(&self.name)
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+ b::preceded(
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b::space(),
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b::intersperse(
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self.args.iter().map(|a| b::primitive(format!("{}", a.arg))),
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b::space(),
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),
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),
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)
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}
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}
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#[derive(Debug)]
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pub(crate) enum StreamNext {
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Last,
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@ -83,179 +54,140 @@ pub(crate) enum StreamNext {
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Internal,
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}
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impl Command {
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pub(crate) async fn run(
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self,
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context: &mut Context,
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input: ClassifiedInputStream,
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stream_next: StreamNext,
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) -> Result<ClassifiedInputStream, ShellError> {
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let stdin = input.stdin;
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let inputs: Vec<Value> = input.objects.into_vec().await;
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pub(crate) async fn run_external_command(
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command: ExternalCommand,
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context: &mut Context,
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input: ClassifiedInputStream,
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stream_next: StreamNext,
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) -> Result<ClassifiedInputStream, ShellError> {
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let stdin = input.stdin;
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let inputs: Vec<Value> = input.objects.into_vec().await;
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trace!(target: "nu::run::external", "-> {}", self.name);
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trace!(target: "nu::run::external", "inputs = {:?}", inputs);
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trace!(target: "nu::run::external", "-> {}", command.name);
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trace!(target: "nu::run::external", "inputs = {:?}", inputs);
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let mut arg_string = format!("{}", self.name);
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for arg in &self.args.list {
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arg_string.push_str(&arg);
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}
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let mut arg_string = format!("{}", command.name);
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for arg in command.args.iter() {
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arg_string.push_str(&arg);
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}
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trace!(target: "nu::run::external", "command = {:?}", self.name);
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trace!(target: "nu::run::external", "command = {:?}", command.name);
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let mut process;
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if arg_string.contains("$it") {
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let input_strings = inputs
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.iter()
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.map(|i| {
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i.as_string().map(|s| s.to_string()).map_err(|_| {
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let arg = self.args.iter().find(|arg| arg.arg.contains("$it"));
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if let Some(arg) = arg {
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ShellError::labeled_error(
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"External $it needs string data",
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"given row instead of string data",
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&arg.tag,
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)
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} else {
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ShellError::labeled_error(
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"$it needs string data",
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"given something else",
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self.name_tag.clone(),
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)
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}
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})
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})
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.collect::<Result<Vec<String>, ShellError>>()?;
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let commands = input_strings.iter().map(|i| {
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let args = self.args.iter().filter_map(|arg| {
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if arg.chars().all(|c| c.is_whitespace()) {
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None
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let mut process;
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if arg_string.contains("$it") {
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let input_strings = inputs
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.iter()
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.map(|i| {
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i.as_string().map(|s| s.to_string()).map_err(|_| {
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let arg = command.args.iter().find(|arg| arg.contains("$it"));
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if let Some(arg) = arg {
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ShellError::labeled_error(
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"External $it needs string data",
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"given row instead of string data",
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&arg.tag,
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)
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} else {
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Some(arg.replace("$it", &i))
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ShellError::labeled_error(
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"$it needs string data",
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"given something else",
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command.name_tag.clone(),
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)
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}
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});
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})
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})
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.collect::<Result<Vec<String>, ShellError>>()?;
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format!("{} {}", self.name, itertools::join(args, " "))
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let commands = input_strings.iter().map(|i| {
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let args = command.args.iter().filter_map(|arg| {
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if arg.chars().all(|c| c.is_whitespace()) {
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None
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} else {
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Some(arg.replace("$it", &i))
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}
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});
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process = Exec::shell(itertools::join(commands, " && "))
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} else {
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process = Exec::cmd(&self.name);
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for arg in &self.args.list {
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let arg_chars: Vec<_> = arg.chars().collect();
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if arg_chars.len() > 1
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&& arg_chars[0] == '"'
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&& arg_chars[arg_chars.len() - 1] == '"'
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{
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// quoted string
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let new_arg: String = arg_chars[1..arg_chars.len() - 1].iter().collect();
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process = process.arg(new_arg);
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} else {
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process = process.arg(arg.arg.clone());
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}
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format!("{} {}", command.name, itertools::join(args, " "))
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});
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process = Exec::shell(itertools::join(commands, " && "))
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} else {
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process = Exec::cmd(&command.name);
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for arg in command.args.iter() {
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let arg_chars: Vec<_> = arg.chars().collect();
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if arg_chars.len() > 1 && arg_chars[0] == '"' && arg_chars[arg_chars.len() - 1] == '"' {
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// quoted string
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let new_arg: String = arg_chars[1..arg_chars.len() - 1].iter().collect();
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process = process.arg(new_arg);
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} else {
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process = process.arg(arg.arg.clone());
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}
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}
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}
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process = process.cwd(context.shell_manager.path());
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process = process.cwd(context.shell_manager.path());
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trace!(target: "nu::run::external", "cwd = {:?}", context.shell_manager.path());
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trace!(target: "nu::run::external", "cwd = {:?}", context.shell_manager.path());
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let mut process = match stream_next {
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StreamNext::Last => process,
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StreamNext::External | StreamNext::Internal => {
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process.stdout(subprocess::Redirection::Pipe)
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}
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};
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trace!(target: "nu::run::external", "set up stdout pipe");
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if let Some(stdin) = stdin {
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process = process.stdin(stdin);
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let mut process = match stream_next {
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StreamNext::Last => process,
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StreamNext::External | StreamNext::Internal => {
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process.stdout(subprocess::Redirection::Pipe)
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}
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};
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trace!(target: "nu::run::external", "set up stdin pipe");
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trace!(target: "nu::run::external", "built process {:?}", process);
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trace!(target: "nu::run::external", "set up stdout pipe");
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let popen = process.popen();
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if let Some(stdin) = stdin {
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process = process.stdin(stdin);
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}
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trace!(target: "nu::run::external", "next = {:?}", stream_next);
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trace!(target: "nu::run::external", "set up stdin pipe");
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trace!(target: "nu::run::external", "built process {:?}", process);
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let name_tag = self.name_tag.clone();
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if let Ok(mut popen) = popen {
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match stream_next {
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StreamNext::Last => {
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let _ = popen.detach();
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loop {
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match popen.poll() {
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None => {
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let _ = std::thread::sleep(std::time::Duration::new(0, 100000000));
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}
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_ => {
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let _ = popen.terminate();
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break;
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}
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let popen = process.popen();
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trace!(target: "nu::run::external", "next = {:?}", stream_next);
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let name_tag = command.name_tag.clone();
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if let Ok(mut popen) = popen {
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match stream_next {
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StreamNext::Last => {
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let _ = popen.detach();
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loop {
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match popen.poll() {
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None => {
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let _ = std::thread::sleep(std::time::Duration::new(0, 100000000));
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}
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_ => {
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let _ = popen.terminate();
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break;
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}
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}
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Ok(ClassifiedInputStream::new())
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}
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StreamNext::External => {
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let _ = popen.detach();
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let stdout = popen.stdout.take().unwrap();
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Ok(ClassifiedInputStream::from_stdout(stdout))
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}
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StreamNext::Internal => {
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let _ = popen.detach();
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let stdout = popen.stdout.take().unwrap();
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let file = futures::io::AllowStdIo::new(stdout);
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let stream = Framed::new(file, LinesCodec {});
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let stream =
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stream.map(move |line| value::string(line.unwrap()).into_value(&name_tag));
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Ok(ClassifiedInputStream::from_input_stream(
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stream.boxed() as BoxStream<'static, Value>
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))
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}
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Ok(ClassifiedInputStream::new())
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}
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StreamNext::External => {
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let _ = popen.detach();
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let stdout = popen.stdout.take().unwrap();
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Ok(ClassifiedInputStream::from_stdout(stdout))
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}
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StreamNext::Internal => {
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let _ = popen.detach();
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let stdout = popen.stdout.take().unwrap();
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let file = futures::io::AllowStdIo::new(stdout);
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let stream = Framed::new(file, LinesCodec {});
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let stream =
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stream.map(move |line| value::string(line.unwrap()).into_value(&name_tag));
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Ok(ClassifiedInputStream::from_input_stream(
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stream.boxed() as BoxStream<'static, Value>
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))
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}
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} else {
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return Err(ShellError::labeled_error(
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"Command not found",
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"command not found",
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name_tag,
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));
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}
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}
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}
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#[derive(Debug, Clone, Eq, PartialEq)]
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pub struct ExternalArg {
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pub arg: String,
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pub tag: Tag,
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}
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impl std::ops::Deref for ExternalArg {
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type Target = str;
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fn deref(&self) -> &str {
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&self.arg
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}
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}
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#[derive(Debug, Clone, Eq, PartialEq)]
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pub struct ExternalArgs {
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pub list: Vec<ExternalArg>,
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pub span: Span,
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}
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impl ExternalArgs {
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pub fn iter(&self) -> impl Iterator<Item = &ExternalArg> {
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self.list.iter()
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}
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}
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impl std::ops::Deref for ExternalArgs {
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type Target = [ExternalArg];
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fn deref(&self) -> &[ExternalArg] {
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&self.list
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} else {
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return Err(ShellError::labeled_error(
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"Command not found",
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"command not found",
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name_tag,
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));
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}
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}
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@ -1,150 +1,129 @@
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use crate::data::value;
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use crate::prelude::*;
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use derive_new::new;
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use log::{log_enabled, trace};
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use nu_errors::ShellError;
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use nu_parser::hir;
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use nu_parser::InternalCommand;
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use nu_protocol::{CommandAction, Primitive, ReturnSuccess, UntaggedValue, Value};
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use super::ClassifiedInputStream;
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#[derive(new, Debug, Clone, Eq, PartialEq)]
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pub struct Command {
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pub(crate) name: String,
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pub(crate) name_tag: Tag,
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pub(crate) args: hir::Call,
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}
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impl HasSpan for Command {
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fn span(&self) -> Span {
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let start = self.name_tag.span;
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start.until(self.args.span)
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pub(crate) async fn run_internal_command(
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command: InternalCommand,
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context: &mut Context,
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input: ClassifiedInputStream,
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source: Text,
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) -> Result<InputStream, ShellError> {
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if log_enabled!(log::Level::Trace) {
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trace!(target: "nu::run::internal", "->");
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trace!(target: "nu::run::internal", "{}", command.name);
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trace!(target: "nu::run::internal", "{}", command.args.debug(&source));
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}
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}
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impl PrettyDebugWithSource for Command {
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fn pretty_debug(&self, source: &str) -> DebugDocBuilder {
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b::typed(
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"internal command",
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b::description(&self.name) + b::space() + self.args.pretty_debug(source),
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let objects: InputStream =
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trace_stream!(target: "nu::trace_stream::internal", "input" = input.objects);
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let internal_command = context.expect_command(&command.name);
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let result = {
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context.run_command(
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internal_command,
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command.name_tag.clone(),
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command.args,
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&source,
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objects,
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)
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}
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}
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};
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|
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impl Command {
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pub(crate) fn run(
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self,
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context: &mut Context,
|
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input: ClassifiedInputStream,
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source: Text,
|
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) -> Result<InputStream, ShellError> {
|
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if log_enabled!(log::Level::Trace) {
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trace!(target: "nu::run::internal", "->");
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trace!(target: "nu::run::internal", "{}", self.name);
|
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trace!(target: "nu::run::internal", "{}", self.args.debug(&source));
|
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}
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let result = trace_out_stream!(target: "nu::trace_stream::internal", "output" = result);
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let mut result = result.values;
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let mut context = context.clone();
|
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|
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let objects: InputStream =
|
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trace_stream!(target: "nu::trace_stream::internal", "input" = input.objects);
|
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let stream = async_stream! {
|
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let mut soft_errs: Vec<ShellError> = vec![];
|
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let mut yielded = false;
|
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|
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let command = context.expect_command(&self.name);
|
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|
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let result =
|
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{ context.run_command(command, self.name_tag.clone(), self.args, &source, objects) };
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|
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let result = trace_out_stream!(target: "nu::trace_stream::internal", "output" = result);
|
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let mut result = result.values;
|
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let mut context = context.clone();
|
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|
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let stream = async_stream! {
|
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let mut soft_errs: Vec<ShellError> = vec![];
|
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let mut yielded = false;
|
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|
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while let Some(item) = result.next().await {
|
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match item {
|
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Ok(ReturnSuccess::Action(action)) => match action {
|
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CommandAction::ChangePath(path) => {
|
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context.shell_manager.set_path(path);
|
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}
|
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CommandAction::Exit => std::process::exit(0), // TODO: save history.txt
|
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CommandAction::Error(err) => {
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context.error(err);
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break;
|
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}
|
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CommandAction::EnterHelpShell(value) => {
|
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match value {
|
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Value {
|
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value: UntaggedValue::Primitive(Primitive::String(cmd)),
|
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tag,
|
||||
} => {
|
||||
context.shell_manager.insert_at_current(Box::new(
|
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HelpShell::for_command(
|
||||
value::string(cmd).into_value(tag),
|
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&context.registry(),
|
||||
).unwrap(),
|
||||
));
|
||||
}
|
||||
_ => {
|
||||
context.shell_manager.insert_at_current(Box::new(
|
||||
HelpShell::index(&context.registry()).unwrap(),
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
CommandAction::EnterValueShell(value) => {
|
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context
|
||||
.shell_manager
|
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.insert_at_current(Box::new(ValueShell::new(value)));
|
||||
}
|
||||
CommandAction::EnterShell(location) => {
|
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context.shell_manager.insert_at_current(Box::new(
|
||||
FilesystemShell::with_location(location, context.registry().clone()).unwrap(),
|
||||
));
|
||||
}
|
||||
CommandAction::PreviousShell => {
|
||||
context.shell_manager.prev();
|
||||
}
|
||||
CommandAction::NextShell => {
|
||||
context.shell_manager.next();
|
||||
}
|
||||
CommandAction::LeaveShell => {
|
||||
context.shell_manager.remove_at_current();
|
||||
if context.shell_manager.is_empty() {
|
||||
std::process::exit(0); // TODO: save history.txt
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
Ok(ReturnSuccess::Value(v)) => {
|
||||
yielded = true;
|
||||
yield Ok(v);
|
||||
while let Some(item) = result.next().await {
|
||||
match item {
|
||||
Ok(ReturnSuccess::Action(action)) => match action {
|
||||
CommandAction::ChangePath(path) => {
|
||||
context.shell_manager.set_path(path);
|
||||
}
|
||||
|
||||
Ok(ReturnSuccess::DebugValue(v)) => {
|
||||
yielded = true;
|
||||
|
||||
let doc = PrettyDebug::pretty_doc(&v);
|
||||
let mut buffer = termcolor::Buffer::ansi();
|
||||
|
||||
doc.render_raw(
|
||||
context.with_host(|host| host.width() - 5),
|
||||
&mut nu_source::TermColored::new(&mut buffer),
|
||||
).unwrap();
|
||||
|
||||
let value = String::from_utf8_lossy(buffer.as_slice());
|
||||
|
||||
yield Ok(value::string(value).into_untagged_value())
|
||||
}
|
||||
|
||||
Err(err) => {
|
||||
CommandAction::Exit => std::process::exit(0), // TODO: save history.txt
|
||||
CommandAction::Error(err) => {
|
||||
context.error(err);
|
||||
break;
|
||||
}
|
||||
CommandAction::EnterHelpShell(value) => {
|
||||
match value {
|
||||
Value {
|
||||
value: UntaggedValue::Primitive(Primitive::String(cmd)),
|
||||
tag,
|
||||
} => {
|
||||
context.shell_manager.insert_at_current(Box::new(
|
||||
HelpShell::for_command(
|
||||
value::string(cmd).into_value(tag),
|
||||
&context.registry(),
|
||||
).unwrap(),
|
||||
));
|
||||
}
|
||||
_ => {
|
||||
context.shell_manager.insert_at_current(Box::new(
|
||||
HelpShell::index(&context.registry()).unwrap(),
|
||||
));
|
||||
}
|
||||
}
|
||||
}
|
||||
CommandAction::EnterValueShell(value) => {
|
||||
context
|
||||
.shell_manager
|
||||
.insert_at_current(Box::new(ValueShell::new(value)));
|
||||
}
|
||||
CommandAction::EnterShell(location) => {
|
||||
context.shell_manager.insert_at_current(Box::new(
|
||||
FilesystemShell::with_location(location, context.registry().clone()).unwrap(),
|
||||
));
|
||||
}
|
||||
CommandAction::PreviousShell => {
|
||||
context.shell_manager.prev();
|
||||
}
|
||||
CommandAction::NextShell => {
|
||||
context.shell_manager.next();
|
||||
}
|
||||
CommandAction::LeaveShell => {
|
||||
context.shell_manager.remove_at_current();
|
||||
if context.shell_manager.is_empty() {
|
||||
std::process::exit(0); // TODO: save history.txt
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
Ok(ReturnSuccess::Value(v)) => {
|
||||
yielded = true;
|
||||
yield Ok(v);
|
||||
}
|
||||
|
||||
Ok(ReturnSuccess::DebugValue(v)) => {
|
||||
yielded = true;
|
||||
|
||||
let doc = PrettyDebug::pretty_doc(&v);
|
||||
let mut buffer = termcolor::Buffer::ansi();
|
||||
|
||||
doc.render_raw(
|
||||
context.with_host(|host| host.width() - 5),
|
||||
&mut nu_source::TermColored::new(&mut buffer),
|
||||
).unwrap();
|
||||
|
||||
let value = String::from_utf8_lossy(buffer.as_slice());
|
||||
|
||||
yield Ok(value::string(value).into_untagged_value())
|
||||
}
|
||||
|
||||
Err(err) => {
|
||||
context.error(err);
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
Ok(stream.to_input_stream())
|
||||
}
|
||||
Ok(stream.to_input_stream())
|
||||
}
|
||||
|
||||
@ -1,16 +1,12 @@
|
||||
use crate::data::value;
|
||||
use crate::prelude::*;
|
||||
use nu_parser::{hir, TokenNode};
|
||||
|
||||
mod dynamic;
|
||||
mod external;
|
||||
mod internal;
|
||||
mod pipeline;
|
||||
pub(crate) mod external;
|
||||
pub(crate) mod internal;
|
||||
|
||||
#[allow(unused_imports)]
|
||||
pub(crate) use dynamic::Command as DynamicCommand;
|
||||
#[allow(unused_imports)]
|
||||
pub(crate) use external::{Command as ExternalCommand, ExternalArg, ExternalArgs, StreamNext};
|
||||
pub(crate) use internal::Command as InternalCommand;
|
||||
|
||||
pub(crate) struct ClassifiedInputStream {
|
||||
pub(crate) objects: InputStream,
|
||||
@ -20,7 +16,7 @@ pub(crate) struct ClassifiedInputStream {
|
||||
impl ClassifiedInputStream {
|
||||
pub(crate) fn new() -> ClassifiedInputStream {
|
||||
ClassifiedInputStream {
|
||||
objects: vec![crate::data::value::nothing().into_untagged_value()].into(),
|
||||
objects: vec![value::nothing().into_value(Tag::unknown())].into(),
|
||||
stdin: None,
|
||||
}
|
||||
}
|
||||
@ -39,35 +35,3 @@ impl ClassifiedInputStream {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Eq, PartialEq)]
|
||||
pub enum ClassifiedCommand {
|
||||
#[allow(unused)]
|
||||
Expr(TokenNode),
|
||||
#[allow(unused)]
|
||||
Dynamic(hir::Call),
|
||||
Internal(InternalCommand),
|
||||
External(ExternalCommand),
|
||||
}
|
||||
|
||||
impl PrettyDebugWithSource for ClassifiedCommand {
|
||||
fn pretty_debug(&self, source: &str) -> DebugDocBuilder {
|
||||
match self {
|
||||
ClassifiedCommand::Expr(token) => b::typed("command", token.pretty_debug(source)),
|
||||
ClassifiedCommand::Dynamic(call) => b::typed("command", call.pretty_debug(source)),
|
||||
ClassifiedCommand::Internal(internal) => internal.pretty_debug(source),
|
||||
ClassifiedCommand::External(external) => external.pretty_debug(source),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl HasSpan for ClassifiedCommand {
|
||||
fn span(&self) -> Span {
|
||||
match self {
|
||||
ClassifiedCommand::Expr(node) => node.span(),
|
||||
ClassifiedCommand::Internal(command) => command.span(),
|
||||
ClassifiedCommand::Dynamic(call) => call.span,
|
||||
ClassifiedCommand::External(command) => command.span(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -14,7 +14,9 @@ pub fn apply_operator(
|
||||
| Operator::LessThan
|
||||
| Operator::GreaterThan
|
||||
| Operator::LessThanOrEqual
|
||||
| Operator::GreaterThanOrEqual => left.compare(op, right).map(value::boolean),
|
||||
| Operator::GreaterThanOrEqual => {
|
||||
value::compare_values(op, left, right).map(value::boolean)
|
||||
}
|
||||
Operator::Dot => Ok(value::boolean(false)),
|
||||
Operator::Contains => contains(left, right).map(value::boolean),
|
||||
Operator::NotContains => contains(left, right).map(Not::not).map(value::boolean),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user