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Add parser tracing, fix 629 (#638)

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JT 2022-01-02 08:42:50 +11:00 committed by GitHub
parent 4383b372f5
commit ac487dfcbc
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9 changed files with 208 additions and 4 deletions
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51
Cargo.lock generated
View File

@ -841,6 +841,7 @@ dependencies = [
"crossterm_winapi",
"ctrlc",
"dialoguer",
"log",
"miette",
"nu-ansi-term",
"nu-cli",
@ -859,10 +860,24 @@ dependencies = [
"nu_plugin_gstat",
"nu_plugin_inc",
"pretty_assertions",
"pretty_env_logger",
"reedline",
"tempfile",
]
[[package]]
name = "env_logger"
version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
dependencies = [
"atty",
"humantime",
"log",
"regex",
"termcolor",
]
[[package]]
name = "erased-serde"
version = "0.3.16"
@ -1166,6 +1181,15 @@ version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9025058dae765dee5070ec375f591e2ba14638c63feff74f13805a72e523163"
[[package]]
name = "humantime"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
dependencies = [
"quick-error",
]
[[package]]
name = "ical"
version = "0.7.0"
@ -1672,6 +1696,7 @@ dependencies = [
name = "nu-cli"
version = "0.1.0"
dependencies = [
"log",
"miette",
"nu-ansi-term",
"nu-color-config",
@ -1787,6 +1812,7 @@ dependencies = [
name = "nu-parser"
version = "0.1.0"
dependencies = [
"log",
"miette",
"nu-path",
"nu-plugin",
@ -2382,6 +2408,16 @@ dependencies = [
"output_vt100",
]
[[package]]
name = "pretty_env_logger"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
dependencies = [
"env_logger",
"log",
]
[[package]]
name = "prettytable-rs"
version = "0.8.0"
@ -2405,6 +2441,12 @@ dependencies = [
"unicode-xid",
]
[[package]]
name = "quick-error"
version = "1.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
[[package]]
name = "quick-xml"
version = "0.19.0"
@ -3063,6 +3105,15 @@ dependencies = [
"winapi",
]
[[package]]
name = "termcolor"
version = "1.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
dependencies = [
"winapi-util",
]
[[package]]
name = "terminal_size"
version = "0.1.17"

2
Cargo.toml
View File

@ -40,6 +40,8 @@ nu-color-config = { path = "./crates/nu-color-config" }
miette = "3.0.0"
ctrlc = "3.2.1"
crossterm_winapi = "0.9.0"
log = "0.4"
pretty_env_logger = "0.4.0"
# mimalloc = { version = "*", default-features = false }

1
crates/nu-cli/Cargo.toml
View File

@ -15,3 +15,4 @@ nu-color-config = { path = "../nu-color-config" }
miette = { version = "3.0.0", features = ["fancy"] }
thiserror = "1.0.29"
reedline = { git = "https://github.com/nushell/reedline", branch = "main" }
log = "0.4"

3
crates/nu-cli/src/syntax_highlight.rs
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@ -1,3 +1,4 @@
use log::trace;
use nu_ansi_term::Style;
use nu_color_config::get_shape_color;
use nu_parser::{flatten_block, parse, FlatShape};
@ -12,6 +13,8 @@ pub struct NuHighlighter {
impl Highlighter for NuHighlighter {
fn highlight(&self, line: &str) -> StyledText {
trace!("highlighting: {}", line);
let (shapes, global_span_offset) = {
let mut working_set = StateWorkingSet::new(&self.engine_state);
let (block, _) = parse(&mut working_set, None, line.as_bytes(), false);

1
crates/nu-parser/Cargo.toml
View File

@ -10,6 +10,7 @@ serde_json = "1.0"
nu-path = {path = "../nu-path"}
nu-protocol = { path = "../nu-protocol"}
nu-plugin = { path = "../nu-plugin", optional = true }
log = "0.4"
[features]
plugin = ["nu-plugin"]

74
crates/nu-parser/src/parser.rs
View File

@ -20,6 +20,7 @@ use crate::parse_keywords::{
parse_alias, parse_def, parse_def_predecl, parse_hide, parse_let, parse_module, parse_use,
};
use log::trace;
use std::collections::HashSet;
#[cfg(feature = "plugin")]
@ -417,12 +418,15 @@ pub fn parse_multispan_value(
match shape {
SyntaxShape::VarWithOptType => {
trace!("parsing: var with opt type");
let (arg, err) = parse_var_with_opt_type(working_set, spans, spans_idx);
error = error.or(err);
(arg, error)
}
SyntaxShape::RowCondition => {
trace!("parsing: row condition");
let (arg, err) = parse_row_condition(working_set, &spans[*spans_idx..]);
error = error.or(err);
*spans_idx = spans.len() - 1;
@ -430,6 +434,8 @@ pub fn parse_multispan_value(
(arg, error)
}
SyntaxShape::Expression => {
trace!("parsing: expression");
let (arg, err) = parse_expression(working_set, &spans[*spans_idx..], true);
error = error.or(err);
*spans_idx = spans.len() - 1;
@ -437,6 +443,11 @@ pub fn parse_multispan_value(
(arg, error)
}
SyntaxShape::Keyword(keyword, arg) => {
trace!(
"parsing: keyword({}) {:?}",
String::from_utf8_lossy(keyword),
arg
);
let arg_span = spans[*spans_idx];
let arg_contents = working_set.get_span_contents(arg_span);
@ -507,6 +518,8 @@ pub fn parse_internal_call(
spans: &[Span],
decl_id: usize,
) -> (Box<Call>, Option<ParseError>) {
trace!("parsing: internal call (decl id: {})", decl_id);
let mut error = None;
let mut call = Call::new();
@ -657,6 +670,8 @@ pub fn parse_call(
expand_aliases: bool,
head: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: call");
if spans.is_empty() {
return (
garbage(head),
@ -686,6 +701,8 @@ pub fn parse_call(
if expand_aliases {
// If the word is an alias, expand it and re-parse the expression
if let Some(expansion) = working_set.find_alias(name) {
trace!("expanding alias");
let orig_span = spans[pos];
let mut new_spans: Vec<Span> = vec![];
new_spans.extend(&spans[0..pos]);
@ -745,6 +762,8 @@ pub fn parse_call(
let test_equal = working_set.get_span_contents(spans[1]);
if test_equal == [b'='] {
trace!("incomplete statement");
return (
garbage(span(spans)),
Some(ParseError::UnknownState(
@ -755,6 +774,8 @@ pub fn parse_call(
}
}
trace!("parsing: internal call");
// parse internal command
let (call, err) = parse_internal_call(
working_set,
@ -774,12 +795,16 @@ pub fn parse_call(
} else {
// We might be parsing left-unbounded range ("..10")
let bytes = working_set.get_span_contents(spans[0]);
trace!("parsing: range {:?} ", bytes);
if let (Some(b'.'), Some(b'.')) = (bytes.get(0), bytes.get(1)) {
trace!("-- found leading range indicator");
let (range_expr, range_err) = parse_range(working_set, spans[0]);
if range_err.is_none() {
trace!("-- successfully parsed range");
return (range_expr, range_err);
}
}
trace!("parsing: external call");
// Otherwise, try external command
parse_external_call(working_set, spans)
@ -904,6 +929,8 @@ pub fn parse_range(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: range");
// Range follows the following syntax: [<from>][<next_operator><next>]<range_operator>[<to>]
// where <next_operator> is ".."
// and <range_operator> is ".." or "..<"
@ -994,6 +1021,8 @@ pub fn parse_range(
}
};
trace!("-- from: {:?} to: {:?}", from, to);
if let (None, None) = (&from, &to) {
return (
garbage(span),
@ -1352,6 +1381,8 @@ pub fn parse_full_cell_path(
if let Some(head) = tokens.peek() {
let bytes = working_set.get_span_contents(head.span);
let (head, expect_dot) = if bytes.starts_with(b"(") {
trace!("parsing: paren-head of full cell path");
let head_span = head.span;
let mut start = head.span.start;
let mut end = head.span.end;
@ -1392,6 +1423,8 @@ pub fn parse_full_cell_path(
true,
)
} else if bytes.starts_with(b"[") {
trace!("parsing: table head of full cell path");
let (output, err) = parse_table_expression(working_set, head.span);
error = error.or(err);
@ -1399,6 +1432,7 @@ pub fn parse_full_cell_path(
(output, true)
} else if bytes.starts_with(b"{") {
trace!("parsing: record head of full cell path");
let (output, err) = parse_record(working_set, head.span);
error = error.or(err);
@ -1406,6 +1440,8 @@ pub fn parse_full_cell_path(
(output, true)
} else if bytes.starts_with(b"$") {
trace!("parsing: $variable head of full cell path");
let (out, err) = parse_variable_expr(working_set, head.span);
error = error.or(err);
@ -1469,10 +1505,13 @@ pub fn parse_filepath(
) -> (Expression, Option<ParseError>) {
let bytes = working_set.get_span_contents(span);
let bytes = trim_quotes(bytes);
trace!("parsing: filepath");
if let Ok(token) = String::from_utf8(bytes.into()) {
let filepath = nu_path::expand_path(token);
let filepath = filepath.to_string_lossy().to_string();
trace!("-- found {}", filepath);
(
Expression {
expr: Expr::Filepath(filepath),
@ -1495,6 +1534,8 @@ pub fn parse_duration(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: duration");
fn parse_decimal_str_to_number(decimal: &str) -> Option<i64> {
let string_to_parse = format!("0.{}", decimal);
if let Ok(x) = string_to_parse.parse::<f64>() {
@ -1547,6 +1588,8 @@ pub fn parse_duration(
};
if let Some(x) = value {
trace!("-- found {} {:?}", x, unit_to_use);
let lhs_span = Span::new(span.start, span.start + lhs.len());
let unit_span = Span::new(span.start + lhs.len(), span.end);
return (
@ -1587,6 +1630,8 @@ pub fn parse_filesize(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: duration");
fn parse_decimal_str_to_number(decimal: &str) -> Option<i64> {
let string_to_parse = format!("0.{}", decimal);
if let Ok(x) = string_to_parse.parse::<f64>() {
@ -1642,6 +1687,8 @@ pub fn parse_filesize(
};
if let Some(x) = value {
trace!("-- found {} {:?}", x, unit_to_use);
let lhs_span = Span::new(span.start, span.start + lhs.len());
let unit_span = Span::new(span.start + lhs.len(), span.end);
return (
@ -1681,10 +1728,14 @@ pub fn parse_glob_pattern(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: glob pattern");
let bytes = working_set.get_span_contents(span);
let bytes = trim_quotes(bytes);
if let Ok(token) = String::from_utf8(bytes.into()) {
trace!("-- found {}", token);
let filepath = nu_path::expand_path(token);
let filepath = filepath.to_string_lossy().to_string();
@ -1709,10 +1760,14 @@ pub fn parse_string(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: string");
let bytes = working_set.get_span_contents(span);
let bytes = trim_quotes(bytes);
if let Ok(token) = String::from_utf8(bytes.into()) {
trace!("-- found {}", token);
(
Expression {
expr: Expr::String(token),
@ -1734,6 +1789,8 @@ pub fn parse_string_strict(
working_set: &mut StateWorkingSet,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: string, with required delimiters");
let bytes = working_set.get_span_contents(span);
let (bytes, quoted) = if (bytes.starts_with(b"\"") && bytes.ends_with(b"\"") && bytes.len() > 1)
|| (bytes.starts_with(b"\'") && bytes.ends_with(b"\'") && bytes.len() > 1)
@ -1744,6 +1801,8 @@ pub fn parse_string_strict(
};
if let Ok(token) = String::from_utf8(bytes.into()) {
trace!("-- found {}", token);
if quoted {
(
Expression {
@ -2621,6 +2680,8 @@ pub fn parse_block_expression(
shape: &SyntaxShape,
span: Span,
) -> (Expression, Option<ParseError>) {
trace!("parsing: block expression");
let bytes = working_set.get_span_contents(span);
let mut error = None;
@ -2768,16 +2829,23 @@ pub fn parse_value(
// which might result in a value that fits other shapes (and require the variable to already be
// declared)
if shape == &SyntaxShape::Variable {
trace!("parsing: variable");
return parse_variable_expr(working_set, span);
} else if bytes.starts_with(b"$") {
trace!("parsing: dollar expression");
return parse_dollar_expr(working_set, span);
} else if bytes.starts_with(b"(") {
trace!("parsing: range or full path");
if let (expr, None) = parse_range(working_set, span) {
return (expr, None);
} else {
return parse_full_cell_path(working_set, None, span);
}
} else if bytes.starts_with(b"{") {
trace!("parsing: block or full path");
if !matches!(shape, SyntaxShape::Block(..)) {
if let (expr, None) = parse_full_cell_path(working_set, None, span) {
return (expr, None);
@ -2822,6 +2890,8 @@ pub fn parse_value(
SyntaxShape::String => parse_string(working_set, span),
SyntaxShape::Block(_) => {
if bytes.starts_with(b"{") {
trace!("parsing value as a block expression");
parse_block_expression(working_set, shape, span)
} else {
(
@ -3347,6 +3417,8 @@ pub fn parse_block(
lite_block: &LiteBlock,
scoped: bool,
) -> (Block, Option<ParseError>) {
trace!("parsing block: {:?}", lite_block);
if scoped {
working_set.enter_scope();
}
@ -3667,6 +3739,8 @@ pub fn parse(
contents: &[u8],
scoped: bool,
) -> (Block, Option<ParseError>) {
trace!("starting top-level parse");
let mut error = None;
let span_offset = working_set.next_span_start();

5
crates/nu-protocol/src/config.rs
View File

@ -53,6 +53,7 @@ pub struct Config {
pub env_conversions: HashMap<String, EnvConversion>,
pub edit_mode: String,
pub max_history_size: i64,
pub log_level: String,
}
impl Default for Config {
@ -71,6 +72,7 @@ impl Default for Config {
env_conversions: HashMap::new(), // TODO: Add default conversoins
edit_mode: "emacs".into(),
max_history_size: 1000,
log_level: String::new(),
}
}
}
@ -186,6 +188,9 @@ impl Value {
"max_history_size" => {
config.max_history_size = value.as_i64()?;
}
"log_level" => {
config.log_level = value.as_string()?;
}
_ => {}
}
}

49
src/logger.rs Normal file
View File

@ -0,0 +1,49 @@
use log::LevelFilter;
use nu_protocol::ShellError;
use pretty_env_logger::env_logger::Builder;
pub fn logger(f: impl FnOnce(&mut Builder) -> Result<(), ShellError>) -> Result<(), ShellError> {
let mut builder = pretty_env_logger::formatted_builder();
f(&mut builder)?;
let _ = builder.try_init();
Ok(())
}
pub fn configure(level: &str, logger: &mut Builder) -> Result<(), ShellError> {
let level = match level {
"error" => LevelFilter::Error,
"warn" => LevelFilter::Warn,
"info" => LevelFilter::Info,
"debug" => LevelFilter::Debug,
"trace" => LevelFilter::Trace,
_ => LevelFilter::Warn,
};
logger.filter_module("nu", level);
if let Ok(s) = std::env::var("RUST_LOG") {
logger.parse_filters(&s);
}
Ok(())
}
// pub fn trace_filters(app: &App, logger: &mut Builder) -> Result<(), ShellError> {
// if let Some(filters) = app.develop() {
// filters.into_iter().filter_map(Result::ok).for_each(|name| {
// logger.filter_module(&name, LevelFilter::Trace);
// })
// }
// Ok(())
// }
// pub fn debug_filters(app: &App, logger: &mut Builder) -> Result<(), ShellError> {
// if let Some(filters) = app.debug() {
// filters.into_iter().filter_map(Result::ok).for_each(|name| {
// logger.filter_module(&name, LevelFilter::Debug);
// })
// }
// Ok(())
// }

26
src/main.rs
View File

@ -5,6 +5,7 @@ use dialoguer::{
theme::ColorfulTheme,
Select,
};
use log::trace;
use miette::{IntoDiagnostic, Result};
use nu_cli::{CliError, NuCompleter, NuHighlighter, NuValidator, NushellPrompt};
use nu_color_config::get_color_config;
@ -21,7 +22,6 @@ use reedline::{
};
use std::{
io::Write,
path::Path,
sync::{
atomic::{AtomicBool, Ordering},
Arc,
@ -31,6 +31,8 @@ use std::{
#[cfg(test)]
mod tests;
mod logger;
// Name of environment variable where the prompt could be stored
const PROMPT_COMMAND: &str = "PROMPT_COMMAND";
@ -114,6 +116,8 @@ fn main() -> Result<()> {
let (block, delta) = {
let mut working_set = StateWorkingSet::new(&engine_state);
trace!("parsing file: {}", path);
let (output, err) = parse(&mut working_set, Some(&path), &file, false);
if let Some(err) = err {
report_error(&working_set, &err);
@ -297,6 +301,16 @@ fn main() -> Result<()> {
}
};
use logger::{configure, logger};
logger(|builder| {
configure(&config.log_level, builder)?;
// trace_filters(self, builder)?;
// debug_filters(self, builder)?;
Ok(())
})?;
// Translate environment variables from Strings to Values
if let Some(e) = convert_env_values(&engine_state, &mut stack, &config) {
let working_set = StateWorkingSet::new(&engine_state);
@ -417,18 +431,18 @@ fn main() -> Result<()> {
let input = line_editor.read_line(prompt);
match input {
Ok(Signal::Success(mut s)) => {
Ok(Signal::Success(s)) => {
let tokens = lex(s.as_bytes(), 0, &[], &[], false);
// Check if this is a single call to a directory, if so auto-cd
let path = nu_path::expand_path(&s);
let orig = s.clone();
s = path.to_string_lossy().to_string();
let path = Path::new(&s);
if (orig.starts_with('.')
|| orig.starts_with('~')
|| orig.starts_with('/')
|| orig.starts_with('\\'))
&& path.is_dir()
&& tokens.0.len() == 1
{
// We have an auto-cd
let _ = std::env::set_current_dir(&path);
@ -446,6 +460,8 @@ fn main() -> Result<()> {
continue;
}
trace!("eval source: {}", s);
eval_source(
&mut engine_state,
&mut stack,
@ -754,6 +770,8 @@ fn eval_source(
source: &str,
fname: &str,
) -> bool {
trace!("eval_source");
let (block, delta) = {
let mut working_set = StateWorkingSet::new(engine_state);
let (output, err) = parse(