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Refactor the CLI code a bit (#12782)

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# Description
Refactors the code in `nu-cli`, `main.rs`, `run.rs`, and few others.
Namely, I added `EngineState::generate_nu_constant` function to
eliminate some duplicate code. Otherwise, I changed a bunch of areas to
return errors instead of calling `std::process::exit`.

# User-Facing Changes
Should be none.
This commit is contained in:
Ian Manske
2024-05-09 23:29:27 +00:00
committed by GitHub
parent 1b2e680059
commit 72d3860d05
19 changed files with 146 additions and 305 deletions
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53
crates/nu-cli/src/eval_cmds.rs
View File

@ -5,8 +5,9 @@ use nu_parser::parse;
use nu_protocol::{
debugger::WithoutDebug,
engine::{EngineState, Stack, StateWorkingSet},
report_error, PipelineData, Spanned, Value,
report_error, PipelineData, ShellError, Spanned, Value,
};
use std::sync::Arc;
/// Run a command (or commands) given to us by the user
pub fn evaluate_commands(
@ -16,13 +17,9 @@ pub fn evaluate_commands(
input: PipelineData,
table_mode: Option<Value>,
no_newline: bool,
) -> Result<Option<i64>> {
) -> Result<(), ShellError> {
// Translate environment variables from Strings to Values
if let Some(e) = convert_env_values(engine_state, stack) {
let working_set = StateWorkingSet::new(engine_state);
report_error(&working_set, &e);
std::process::exit(1);
}
convert_env_values(engine_state, stack)?;
// Parse the source code
let (block, delta) = {
@ -41,7 +38,6 @@ pub fn evaluate_commands(
if let Some(err) = working_set.parse_errors.first() {
report_error(&working_set, err);
std::process::exit(1);
}
@ -49,35 +45,26 @@ pub fn evaluate_commands(
};
// Update permanent state
if let Err(err) = engine_state.merge_delta(delta) {
let working_set = StateWorkingSet::new(engine_state);
report_error(&working_set, &err);
}
engine_state.merge_delta(delta)?;
// Run the block
let exit_code = match eval_block::<WithoutDebug>(engine_state, stack, &block, input) {
Ok(pipeline_data) => {
let mut config = engine_state.get_config().clone();
if let Some(t_mode) = table_mode {
config.table_mode = t_mode.coerce_str()?.parse().unwrap_or_default();
}
crate::eval_file::print_table_or_error(
engine_state,
stack,
pipeline_data,
&mut config,
no_newline,
)
}
Err(err) => {
let working_set = StateWorkingSet::new(engine_state);
let pipeline = eval_block::<WithoutDebug>(engine_state, stack, &block, input)?;
report_error(&working_set, &err);
std::process::exit(1);
}
};
if let PipelineData::Value(Value::Error { error, .. }, ..) = pipeline {
return Err(*error);
}
if let Some(t_mode) = table_mode {
Arc::make_mut(&mut engine_state.config).table_mode =
t_mode.coerce_str()?.parse().unwrap_or_default();
}
let exit_code = pipeline.print(engine_state, stack, no_newline, false)?;
if exit_code != 0 {
std::process::exit(exit_code as i32);
}
info!("evaluate {}:{}:{}", file!(), line!(), column!());
Ok(exit_code)
Ok(())
}