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fuck_this_
| Author | SHA1 | Date |
|---|---|---|
 Avril
|
946a3e6cc3
|
4 years ago |
@ -1,5 +1,4 @@
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/target
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*~
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*.dump
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*.dump.raw
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profiling/
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@ -1,515 +0,0 @@
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//! For parsing arguments
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use super::*;
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use std::collections::{HashMap, HashSet};
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use std::mem::Discriminant;
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use std::fmt;
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#[cfg(feature="inspect")] use config::OutputSerialisationMode;
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum InspectKind
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{
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Treemap(Option<(u64, u64)>),
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}
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impl fmt::Display for InspectKind
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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match self {
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Self::Treemap(None) => write!(f, "treemap"),
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Self::Treemap(Some((x,y))) => write!(f, "treemap:{}:{}", x, y), // Width and height.
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}
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}
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}
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impl std::str::FromStr for InspectKind
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{
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type Err = eyre::Report;
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fn from_str(s: &str) -> Result<Self, Self::Err>
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{
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todo!()
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}
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum Argument
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{
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ModeChangeHelp,
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LimitConcMaxProc,
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LimitConc(NonZeroUsize),
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UnlimitConc,
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Save(String),
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SaveStdout,
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SaveRaw(String),
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SaveRawStdout,
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LimitRecurse(NonZeroUsize),
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UnlimitRecurse,
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LogVerbose,
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LogQuiet,
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LogSilent,
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StopReading,
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Inspect(InspectKind),
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Input(String),
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}
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/// Kinds of modes of operation for the program.
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///
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/// These map to `super::Mode`.
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#[derive(Debug, Clone, PartialEq, Eq, Hash, Ord, PartialOrd, Copy)]
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#[non_exhaustive]
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enum ModeKind
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{
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Normal,
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Help
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}
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impl Default for ModeKind
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{
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#[inline]
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fn default() -> Self
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{
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Self::Normal
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}
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}
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impl Argument
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{
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/// What mode does this argument change to, if any?
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fn mode_change_kind(&self) -> Option<ModeKind>
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{
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Some(match self
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{
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Self::ModeChangeHelp => ModeKind::Help,
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_ => return None,
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})
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}
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/// Insert this `Argument` into config
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pub fn insert_into_cfg(self, cfg: &mut Config)
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{
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use Argument::*;
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match self {
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Inspect(InspectKind::Treemap(None)) => cfg.inspection.treemap = Some((640, 480)),
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Inspect(InspectKind::Treemap(x)) => cfg.inspection.treemap = x,
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LimitConcMaxProc => cfg.max_tasks = config::max_tasks_cpus(),
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LimitConc(max) => cfg.max_tasks = Some(max),
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UnlimitConc => cfg.max_tasks = None,
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#[cfg(feature="inspect")] Save(output) => cfg.serialise_output = Some(OutputSerialisationMode::File(output.into())),
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#[cfg(feature="inspect")] SaveStdout => cfg.serialise_output = Some(OutputSerialisationMode::Stdout),
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#[cfg(feature="inspect")] SaveRaw(output) => {
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cfg_if! {
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if #[cfg(feature="prealloc")] {
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cfg.serialise_output = Some(OutputSerialisationMode::PreallocFile(output.into()));
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} else {
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cfg.serialise_output = Some(OutputSerialisationMode::RawFile(output.into()));
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}
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}
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},
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#[cfg(feature="inspect")] SaveRawStdout => cfg.serialise_output = Some(OutputSerialisationMode::RawStdout),
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LimitRecurse(limit) => cfg.recursive = if limit.get() == 1 { config::Recursion::None } else { config::Recursion::Limited(limit) },
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UnlimitRecurse => cfg.recursive = config::Recursion::Unlimited,
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LogVerbose => cfg.output_level = config::OutputLevel::Verbose,
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LogQuiet => cfg.output_level = config::OutputLevel::Quiet,
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LogSilent => cfg.output_level = config::OutputLevel::Silent,
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Input(path) => cfg.paths.push(path.into()),
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_ => (), //unreachable()! // Do nothing instead of panic.
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}
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}
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}
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impl fmt::Display for Argument
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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use Argument::*;
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match self
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{
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Inspect(ins) => write!(f, "--inspect {}", ins),
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ModeChangeHelp => write!(f, "--help"),
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LimitConcMaxProc => write!(f, "-m"),
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LimitConc(limit) => write!(f, "--threads {}", limit),
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UnlimitConc => write!(f, "-M (--threads 0)"),
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Save(s) => write!(f, "--save {:?}", s),
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SaveStdout => write!(f, "-D"),
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SaveRaw(s) => write!(f, "--save-raw {:?}", s),
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SaveRawStdout => write!(f, "-R"),
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LimitRecurse(rec) => write!(f, "--recursive {}", rec),
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UnlimitRecurse => write!(f, "-r (--recursive 0)"),
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LogVerbose => write!(f, "-v"),
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LogQuiet => write!(f, "-q"),
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LogSilent => write!(f, "-Q"),
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StopReading => write!(f, "-"),
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Input(input) => write!(f, "<{}>", input),
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}
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}
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash, Copy)]
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enum MX
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{
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None,
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Itself,
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All,
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Only(Discriminant<Argument>),
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Many(&'static [Discriminant<Argument>]),
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}
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impl Default for MX
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{
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#[inline]
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fn default() -> Self
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{
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Self::Itself
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}
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}
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impl MX
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{
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/// Is this argument discriminant mutually exclusive with this other argument?
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pub fn is_mx(&self, this: Discriminant<Argument>, other: &Argument) -> bool
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{
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use std::mem::discriminant;
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let other = discriminant(other);
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match self
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{
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Self::Itself if other == this => true,
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Self::All => true,
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Self::Only(disc) if other == *disc => true,
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Self::Many(discs) if discs.contains(&other) => true,
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_ => false,
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}
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}
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}
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impl Argument
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{
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/// Is this `Argument` mutually exclusive with another?
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pub fn is_mx_with(&self, other: &Self) -> bool
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{
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use std::mem::discriminant;
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lazy_static! {
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static ref MX_REF: HashMap<Discriminant<Argument>, MaybeVec<MX>> = {
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let mut out = HashMap::new();
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macro_rules! mx {
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(@) => {
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std::iter::empty()
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};
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(@ self $($tt:tt)*) => {
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iter![MX::Itself].chain(mx!(@ $($tt)*))
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};
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(@ [$inner:expr] $($tt:tt)*) => {
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iter![MX::Only(discriminant(&$inner))].chain(mx!(@ $($tt)*))
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};
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(@ [$($inner:expr),*] $($tt:tt)*) => {
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iter![MX::Many(vec![$(discriminant(&$inner)),*].leak())].chain(mx!(@ $($tt)*))
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};
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(@ $ident:ident $($tt:tt)*) => {
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iter![MX::$ident].chain(mx!(@ $($tt)*))
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};
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($disc:expr => $($tt:tt)*) => {
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out.insert(discriminant(&$disc), mx!(@ $($tt)*).collect());
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};
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}
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mx!(Argument::ModeChangeHelp => All);
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mx!(Argument::LimitConcMaxProc => self [Argument::UnlimitConc,
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Argument::LimitConc(unsafe{NonZeroUsize::new_unchecked(1)})]);
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mx!(Argument::UnlimitConc => self [Argument::LimitConcMaxProc, Argument::LimitConc(unsafe{NonZeroUsize::new_unchecked(1)})]);
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mx!(Argument::LimitConc(unsafe{NonZeroUsize::new_unchecked(1)}) => self [Argument::LimitConcMaxProc, Argument::UnlimitConc]);
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mx!(Argument::Save(String::default()) => self [Argument::SaveStdout,
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Argument::SaveRaw(Default::default()),
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Argument::SaveRawStdout]);
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mx!(Argument::SaveStdout => self [Argument::Save(String::default()),
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Argument::SaveRaw(Default::default()),
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Argument::SaveRawStdout]);
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mx!(Argument::SaveRaw(Default::default()) => self [Argument::Save(String::default()),
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Argument::SaveStdout,
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Argument::SaveRawStdout]);
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mx!(Argument::SaveRawStdout => self [Argument::Save(String::default()),
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Argument::SaveRaw(String::default()),
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Argument::SaveStdout]);
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mx!(Argument::LimitRecurse(unsafe{NonZeroUsize::new_unchecked(1)}) => self [Argument::UnlimitRecurse]);
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mx!(Argument::UnlimitRecurse => self [Argument::LimitRecurse(unsafe{NonZeroUsize::new_unchecked(1)})]);
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mx!(Argument::LogVerbose => self [Argument::LogQuiet, Argument::LogSilent]);
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mx!(Argument::LogQuiet => self [Argument::LogVerbose, Argument::LogSilent]);
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mx!(Argument::LogSilent => self [Argument::LogQuiet, Argument::LogVerbose]);
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mx!(Argument::StopReading => All);
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mx!(Argument::Input(String::default()) => None);
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out
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};
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}
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let this = discriminant(self);
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match MX_REF.get(&this) {
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Some(mx) if mx.iter().filter(|mx| mx.is_mx(this, other)).next().is_some() => true,
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_ => false,
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}
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}
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}
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/// Should we continue parsing and/or reading arguments?
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub enum Continue
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{
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/// Keep parsing the arguments
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Yes,
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/// Stop parsing arguments, add the rest of args as `Input`s
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No,
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/// On mode change, we don't need to parse the rest of the argument. Stop reading entirely, and optionally return the last one here, which must be a mode change argument.
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///
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/// Returning this when the contained value is `Some` immediately terminates parsing and precedes to mode-switch. However, if it is `None`, parsing of chained short args is allowed to continue, although `Abort(None)` will be returned at the end regardless of subsequent `Continue` results from that change (unless one is an `Abort(Some(_))`, which immediately returns itself.)
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// Box `Argument` to reduce the size of `Continue`, as it is returned from functions often and when its value is set to `Some` it will always be the last `Argument` processed anyway and the only one to be boxed here at all.
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//TODO: Deprecate the early return of an `Argument` here. Either change it to `Mode`, or have no early return. Mode change happens at the bottom in `into_mode` now.
|
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Abort(Option<Box<Mode>>),
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}
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||||
|
||||
impl Continue
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||||
{
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/// Should we keep *parsing* args?
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#[inline] pub fn keep_reading(&self) -> bool
|
||||
{
|
||||
if let Self::Yes = self {
|
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true
|
||||
} else {
|
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false
|
||||
}
|
||||
}
|
||||
|
||||
/// Is this an abort?
|
||||
#[inline] pub fn is_abort(&self) -> bool
|
||||
{
|
||||
if let Self::Abort(_) = self {
|
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true
|
||||
} else {
|
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false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Continue
|
||||
{
|
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#[inline]
|
||||
fn default() -> Self
|
||||
{
|
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Self::Yes
|
||||
}
|
||||
}
|
||||
|
||||
impl From<bool> for Continue
|
||||
{
|
||||
fn from(from: bool) -> Self
|
||||
{
|
||||
if from {
|
||||
Self::Yes
|
||||
} else {
|
||||
Self::No
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
pub type Output = HashSet<Argument>;
|
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#[inline] const fn suggestion_intended_arg() -> &'static str {
|
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"If this was intended as a path instead of an option, use option `-` before it."
|
||||
}
|
||||
|
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fn save_output(output: &mut Output, item: Argument) -> eyre::Result<()>
|
||||
{
|
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if let Some(mx) = output.iter().filter(|arg| item.is_mx_with(arg)).next() {
|
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return Err(eyre!("Arguments are mutually exclusive"))
|
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.with_section(|| item.header("Trying to addargument "))
|
||||
.with_section(|| mx.to_string().header("Which is mutually exclusive with previously added"));
|
||||
}
|
||||
|
||||
output.insert(item); //TODO: Warn when adding duplicate?
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn parse_single<I>(_args: &mut I, output: &mut Output, this: char) -> eyre::Result<Continue>
|
||||
where I: Iterator<Item=String>
|
||||
{
|
||||
let item = match this
|
||||
{
|
||||
'r' => Argument::UnlimitRecurse,
|
||||
|
||||
#[cfg(feature="inspect")] 'D' => Argument::SaveStdout,
|
||||
#[cfg(feature="inspect")] 'R' => Argument::SaveRawStdout,
|
||||
|
||||
'v' => Argument::LogVerbose,
|
||||
'q' => Argument::LogQuiet,
|
||||
'Q' => Argument::LogSilent,
|
||||
|
||||
'm' => Argument::LimitConcMaxProc,
|
||||
'M' => Argument::UnlimitConc,
|
||||
|
||||
unknown => {
|
||||
return Err(eyre!("Unknown short argument {:?}", unknown))
|
||||
.with_suggestion(suggestion_intended_arg.clone());
|
||||
},
|
||||
};
|
||||
|
||||
save_output(output, item)
|
||||
.with_section(|| this.header("Short argument was"))?;
|
||||
|
||||
Ok(Continue::Yes)
|
||||
}
|
||||
|
||||
/// Consume this iterator into `Input`s
|
||||
pub fn consume<I>(args: I, output: &mut Output)
|
||||
where I: IntoIterator<Item=String>
|
||||
{
|
||||
output.extend(args.into_iter().map(Argument::Input));
|
||||
}
|
||||
|
||||
pub fn parse_next<I>(args: &mut I, output: &mut Output, this: String) -> eyre::Result<Continue>
|
||||
where I: Iterator<Item=String>
|
||||
{
|
||||
let mut keep_reading = Continue::Yes;
|
||||
let item = match this.trim()
|
||||
{
|
||||
"--inspect" => {
|
||||
let ins = args.next().ok_or(eyre!("`--inspect` expects a parameter"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())?;
|
||||
Argument::Inspect(ins.parse().wrap_err(eyre!("Failed to parse parameter for `--inspect`"))?)
|
||||
},
|
||||
" --threads" => {
|
||||
let max = args.next().ok_or(eyre!("`--threads` expects a parameter"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())?;
|
||||
match NonZeroUsize::new(max.parse::<usize>()
|
||||
.wrap_err(eyre!("`--threads` expects a non-negative number"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())
|
||||
.with_section(move || max.header("Parameter given was"))?)
|
||||
{
|
||||
Some(max) => Argument::LimitConc(max),
|
||||
None => Argument::UnlimitConc,
|
||||
}
|
||||
},
|
||||
"--recursive" => {
|
||||
let max = args.next().ok_or(eyre!("`--recursive` expects a parameter"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())?;
|
||||
match NonZeroUsize::new(max.parse::<usize>().wrap_err(eyre!("`--recursive` expects a non-negative number"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())
|
||||
.with_section(move || max.header("Parameter given was"))?)
|
||||
{
|
||||
Some(x) => Argument::LimitRecurse(x),
|
||||
None => Argument::UnlimitRecurse,
|
||||
}
|
||||
},
|
||||
"--help" => {
|
||||
return Ok(Continue::Abort(Some(Box::new(Mode::Help))));
|
||||
},
|
||||
"-" => {
|
||||
return Ok(Continue::No);
|
||||
},
|
||||
#[cfg(feature="inspect")] "--save" => {
|
||||
let file = args.next().ok_or(eyre!("`--save` expects a parameter"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())?;
|
||||
|
||||
Argument::Save(file)
|
||||
},
|
||||
#[cfg(feature="inspect")] "--save-raw" => {
|
||||
let file = args.next().ok_or(eyre!("`--save` expects a parameter"))
|
||||
.with_suggestion(suggestion_intended_arg.clone())?;
|
||||
|
||||
Argument::SaveRaw(file)
|
||||
},
|
||||
single if single.starts_with("-") => {
|
||||
for ch in single.chars().skip(1) {
|
||||
match parse_single(args, output, ch)
|
||||
.wrap_err(eyre!("Error parsing short argument"))
|
||||
.with_section(|| this.clone().header("Full short argument chain was"))? {
|
||||
abort @ Continue::Abort(Some(_)) => return Ok(abort),
|
||||
x @ Continue::No |
|
||||
x @ Continue::Abort(_) if !x.is_abort() => keep_reading = x,
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
return Ok(keep_reading);
|
||||
},
|
||||
_ => {
|
||||
keep_reading = Continue::No;
|
||||
|
||||
Argument::Input(this)
|
||||
}
|
||||
};
|
||||
|
||||
save_output(output, item)?;
|
||||
|
||||
Ok(keep_reading)
|
||||
}
|
||||
|
||||
/// Converts parsed argument lists into a respective mode.
|
||||
///
|
||||
/// # Notes
|
||||
/// These functions assume the mode has already been correctly calculated to be the mode pertaining to that function.
|
||||
mod modes {
|
||||
use super::*;
|
||||
use config::Config;
|
||||
|
||||
/// Consume a parsed list of arguments in `Normal` mode into a `Normal` mode `Config` object.
|
||||
pub fn normal(args: Output) -> eyre::Result<config::Config>
|
||||
{
|
||||
let mut cfg = Config::default();
|
||||
|
||||
for arg in args.into_iter()
|
||||
{
|
||||
arg.insert_into_cfg(&mut cfg);
|
||||
}
|
||||
|
||||
Ok(cfg)
|
||||
}
|
||||
|
||||
}
|
||||
/// Consume this parsed list of arguments into a `Mode` and return it
|
||||
pub fn into_mode(args: Output) -> eyre::Result<Mode>
|
||||
{
|
||||
let mut mode_kind = ModeKind::default(); //Normal.
|
||||
|
||||
for arg in args.iter() {
|
||||
//find any mode change Argument (with `Argument::mode_change_kind()`) in `args`, changing `mode_kind` in turn. There should be at most 1.
|
||||
if let Some(mode) = arg.mode_change_kind()
|
||||
{
|
||||
mode_kind = mode;
|
||||
break;
|
||||
}
|
||||
}
|
||||
//pass `args` to the respective mode generation function in mode `modes`, and wrap that mode around its return value.
|
||||
match mode_kind
|
||||
{
|
||||
ModeKind::Normal => modes::normal(args).map(Mode::Normal),
|
||||
ModeKind::Help => Ok(Mode::Help),
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,124 +0,0 @@
|
||||
use super::*;
|
||||
use treemap::{
|
||||
Rect,
|
||||
Mappable,
|
||||
TreemapLayout
|
||||
};
|
||||
use data::{FsInfo, INodeInfoGraph, INodeInfoGraphEntry};
|
||||
|
||||
/// A treemap of all **files** in the graph.
|
||||
#[derive(Debug, Clone, PartialEq)]
|
||||
pub struct Treemap
|
||||
{
|
||||
//layout: TreemapLayout,
|
||||
nodes: Vec<MapNode>,
|
||||
}
|
||||
|
||||
impl Treemap
|
||||
{
|
||||
/// All nodes of the map.
|
||||
#[inline] pub fn nodes(&self) -> &[MapNode]
|
||||
{
|
||||
&self.nodes[..]
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq)]
|
||||
pub struct MapNode
|
||||
{
|
||||
name: String,
|
||||
|
||||
vw_size: f64, // Should be halved each iteration
|
||||
vw_bounds: Rect, // should be Rect::new() before aligntment
|
||||
}
|
||||
|
||||
impl MapNode
|
||||
{
|
||||
/// The calculated bounds of the node
|
||||
#[inline] pub fn bounds(&self) -> &Rect
|
||||
{
|
||||
&self.vw_bounds
|
||||
}
|
||||
/// The name of the node
|
||||
#[inline] pub fn name(&self) -> &str
|
||||
{
|
||||
&self.name[..]
|
||||
}
|
||||
|
||||
#[inline] fn size(&self) -> f64 //Is this useful for consumer?
|
||||
{
|
||||
self.vw_size
|
||||
}
|
||||
|
||||
#[inline] fn new(name: String) -> Self
|
||||
{
|
||||
Self {
|
||||
vw_size: 1.0,
|
||||
vw_bounds: Rect::new(),
|
||||
name,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Create a treemap from this graph.
|
||||
pub fn treemap(_cfg: &Config, graph: &INodeInfoGraph, (w, h): (f64, f64)) -> Treemap
|
||||
{
|
||||
let layout = TreemapLayout::new();
|
||||
let mut nodes = Vec::with_capacity(graph.len());
|
||||
//TODO: Recursively walk the graph, halving size with each iteration. (Maybe we need `INodeInfoGraph` here, not `Hierarchicalinodegraph`?)
|
||||
let total_size = graph.total_size();
|
||||
|
||||
let size = 1.0;
|
||||
|
||||
fn calc_path<'a, I: IntoIterator<Item = INodeInfoGraphEntry<'a>>>(insert: &'a mut Vec<MapNode>, from: I, total_size: u64, size: f64, scale: f64)
|
||||
{
|
||||
for top in from {
|
||||
let path = top.path();
|
||||
match top.info() {
|
||||
FsInfo::Directory(_) => {
|
||||
//TODO: Do we add dir itself? I think not?
|
||||
// Add children
|
||||
let size = size * 0.5;
|
||||
calc_path(insert, top.level().unwrap(), total_size, size, scale);
|
||||
},
|
||||
&FsInfo::File(sz, _) => {
|
||||
let fract = (sz as f64) / (total_size as f64);
|
||||
insert.push(MapNode {
|
||||
name: path.to_string_lossy().into_owned(),
|
||||
vw_size: fract * scale,
|
||||
vw_bounds: Rect::new(),
|
||||
})
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
calc_path(&mut nodes, graph.top_level(), total_size, size, 1.0);
|
||||
|
||||
layout.layout_items(&mut nodes[..], Rect {
|
||||
x: 0.0,
|
||||
y: 0.0,
|
||||
w, h,
|
||||
});
|
||||
|
||||
Treemap {
|
||||
//layout,
|
||||
nodes
|
||||
}
|
||||
}
|
||||
|
||||
impl Mappable for MapNode
|
||||
{
|
||||
fn size(&self) -> f64
|
||||
{
|
||||
self.vw_size
|
||||
}
|
||||
fn bounds(&self) -> &Rect
|
||||
{
|
||||
&self.vw_bounds
|
||||
}
|
||||
fn set_bounds(&mut self, bounds: Rect)
|
||||
{
|
||||
self.vw_bounds = bounds;
|
||||
}
|
||||
}
|
||||
@ -1,21 +0,0 @@
|
||||
//! Prints the information found in graph in different ways
|
||||
use super::*;
|
||||
|
||||
use data::HierarchicalINodeGraph;
|
||||
use config::Config;
|
||||
|
||||
//pub mod repl;
|
||||
|
||||
/// Print the most basic info
|
||||
pub fn print_basic_max_info(cfg: &Config, graph: &HierarchicalINodeGraph)
|
||||
{
|
||||
cfg_println!(Quiet; cfg, "Max size file: {:?}", graph.path_max_size_for(data::FsKind::File));
|
||||
cfg_println!(Quiet; cfg, "Max size dir: {:?}", graph.path_max_size_for(data::FsKind::Directory));
|
||||
cfg_println!(Quiet; cfg, "Max size all: {:?}", graph.path_max_size());
|
||||
}
|
||||
|
||||
|
||||
#[cfg(feature="treemap")]
|
||||
mod map;
|
||||
#[cfg(feature="treemap")]
|
||||
pub use map::*;
|
||||
@ -1,131 +0,0 @@
|
||||
//! Graph inspection REPL
|
||||
use super::*;
|
||||
use std::{fmt, error};
|
||||
use std::path::PathBuf;
|
||||
use std::io;
|
||||
|
||||
use rustyline::error::ReadlineError;
|
||||
use rustyline::Editor;
|
||||
|
||||
mod env;
|
||||
mod command;
|
||||
mod opcodes;
|
||||
|
||||
/// Default history file name
|
||||
///
|
||||
/// # Path lookup
|
||||
/// * To make this an absolute path, start it with `/`
|
||||
/// * To make this path relative to the user's home directory, start it with `~/` (Note: If we are unable to find the user's home directory, it is considered a lookup **failure** (*not* a **disable**) and `calculate_history_path()` will return `Err`.)
|
||||
/// * Otherwise, the path is taken relative to the current working directory
|
||||
///
|
||||
/// # Notes
|
||||
/// This is only used when the `save-history` feature is enabled.
|
||||
const DEFAULT_HISTORY_FILE: &'static str = "~/.dirstat_history";
|
||||
|
||||
/// Get the path to the history file.
|
||||
///
|
||||
/// # Lookup
|
||||
/// * If the `DIRSTAT_HISTORY` envvar is set and not empty, use this file path.
|
||||
/// * If the `DIRSTAT_HISTORY` envvar is set and empty, saving history is considered **disabled**, we return `Ok(None)`.
|
||||
/// * Otherwise, refer to lookup rules for `DEFAULT_HISTORY_FILE`.
|
||||
pub fn calculate_history_path() -> io::Result<Option<PathBuf>>
|
||||
{
|
||||
cfg_if! {
|
||||
if #[cfg(feature="save-history")] {
|
||||
todo!()
|
||||
} else {
|
||||
unreachable!("Tried to calculate repl history path when binary was compiled with history saving perma-disabled.")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Inspect the graph with commands
|
||||
///
|
||||
/// # Note
|
||||
/// This function synchronously blocks the current thread.
|
||||
pub fn inspect(cfg: &Config, graph: &HierarchicalINodeGraph) -> Result<(), ReplExitError>
|
||||
{
|
||||
let mut repl = Editor::<()>::new(); //TODO: Change `()` to our completer, when we have a decent idea of how they'll work.
|
||||
|
||||
cfg_if! {
|
||||
if #[cfg(feature="save-history")] {
|
||||
let history_path = match calculate_history_path() {
|
||||
Ok(Some(path)) => {
|
||||
if let Err(err) = repl.load_history(&path)
|
||||
{
|
||||
cfg_eprintln!(cfg, "Failed to load repl history from {:?}: {}", path, err);
|
||||
}
|
||||
Some(path)
|
||||
},
|
||||
Ok(None) => None,
|
||||
Err(err)
|
||||
{
|
||||
cfg_eprintln!(cfg, "Failed to find repl history: {}", err);
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let res: Result<(), ReplExitError> = try {
|
||||
loop {
|
||||
let line = repl.readline("> ")?;
|
||||
repl.add_history_entry(&line);
|
||||
|
||||
//TODO: How to interpret commands?
|
||||
todo!("Interpret commands from `line`.");
|
||||
}
|
||||
};
|
||||
|
||||
cfg_if! {
|
||||
if #[cfg(feature="save-history")] {
|
||||
if let Some(path) = history_path {
|
||||
if let Err(err) = repl.save_history(&path)
|
||||
{
|
||||
cfg_eprintln!(cfg, "Failed to save repl history to {:?}: {}", path, err);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
res
|
||||
}
|
||||
|
||||
/// When the inspection repl exists abnormally.
|
||||
#[derive(Debug)]
|
||||
pub enum ReplExitError
|
||||
{
|
||||
ReadLine(ReadlineError),
|
||||
}
|
||||
|
||||
impl From<ReadlineError> for ReplExitError
|
||||
{
|
||||
#[inline] fn from(from: ReadlineError) -> Self
|
||||
{
|
||||
Self::ReadLine(from)
|
||||
}
|
||||
}
|
||||
|
||||
impl error::Error for ReplExitError
|
||||
{
|
||||
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
|
||||
Some(match &self
|
||||
{
|
||||
Self::ReadLine(rl) => rl
|
||||
})
|
||||
}
|
||||
}
|
||||
impl fmt::Display for ReplExitError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
match self
|
||||
{
|
||||
Self::ReadLine(ReadlineError::Eof) |
|
||||
Self::ReadLine(ReadlineError::Interrupted) => write!(f, "exit"),
|
||||
Self::ReadLine(_) => write!(f, "readline error"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -1,54 +0,0 @@
|
||||
//! Repl commands
|
||||
use super::*;
|
||||
use std::str::FromStr;
|
||||
|
||||
use super::env::*;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Context<'a>
|
||||
{
|
||||
/// Environment containing variable name mappings.
|
||||
env: &'a mut Lexenv,
|
||||
}
|
||||
|
||||
/// Trait for commands.
|
||||
///
|
||||
/// # Defining commands
|
||||
/// A command object should be created once only, and then referenced and executed using `params` and through mutating `cx`.
|
||||
pub trait Command: fmt::Debug
|
||||
{
|
||||
fn execute(&self, cx: &mut Context<'_>, params: Vec<Value>) -> eyre::Result<()>;
|
||||
}
|
||||
|
||||
/// Command structurally parsed.
|
||||
///
|
||||
/// Can be converted into `Command` with the `TryInto` trait.
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
|
||||
pub struct IR
|
||||
{
|
||||
op: String,
|
||||
params: Vec<Value>,
|
||||
}
|
||||
|
||||
impl FromStr for IR
|
||||
{
|
||||
type Err = CommandParseError;
|
||||
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
todo!()
|
||||
}
|
||||
}
|
||||
|
||||
/// Error when parsing a command into `IR`.
|
||||
#[derive(Debug)]
|
||||
pub struct CommandParseError(String);
|
||||
|
||||
impl error::Error for CommandParseError{}
|
||||
|
||||
impl fmt::Display for CommandParseError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "failed to parse command from {:?}", self.0)
|
||||
}
|
||||
}
|
||||
@ -1,242 +0,0 @@
|
||||
//! Execution environment for repl
|
||||
use super::*;
|
||||
use std::str::FromStr;
|
||||
use std::collections::{BTreeMap, HashMap};
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Lexenv
|
||||
{
|
||||
/// Maps symbol name to value in generations.
|
||||
kvstack: BTreeMap<usize, HashMap<String, Value>>,
|
||||
/// Current generation of the satck
|
||||
current_generation: usize,
|
||||
}
|
||||
impl Lexenv
|
||||
{
|
||||
/// The generation number of the current level.
|
||||
pub fn depth(&self) -> usize
|
||||
{
|
||||
self.current_generation
|
||||
}
|
||||
/// Create a new empty lexenv
|
||||
pub fn new() -> Self
|
||||
{
|
||||
Self {
|
||||
kvstack: BTreeMap::new(),
|
||||
current_generation: 0,
|
||||
}
|
||||
}
|
||||
/// All valid symbols at this level.
|
||||
///
|
||||
/// # Ordering
|
||||
/// Each symbol's level will appear in the order from level 0 to the current level, however the order of intra-level symbols is undefined.
|
||||
pub fn symbols(&self) -> impl Iterator<Item = &'_ Value> + '_
|
||||
{
|
||||
self.kvstack.range(0..=self.current_generation).flat_map(|(_, v)| v.values())
|
||||
}
|
||||
|
||||
/// All valid symbols **in** this level.
|
||||
pub fn symbols_local(&self) -> impl Iterator<Item = &'_ Value> + '_
|
||||
{
|
||||
OptionIterator::from(self.kvstack.get(&self.current_generation).map(|x| x.values()))
|
||||
}
|
||||
|
||||
/// Remove the current level, but leave its memory allocated for further use.
|
||||
pub fn pop(&mut self)
|
||||
{
|
||||
self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).clear();
|
||||
if self.current_generation > 0 {
|
||||
self.current_generation-=1;
|
||||
}
|
||||
}
|
||||
|
||||
/// Remove a symbol from the **current** level.
|
||||
pub fn remove(&mut self, name: &str) -> Option<Value>
|
||||
{
|
||||
self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).remove(name)
|
||||
}
|
||||
|
||||
/// Insert a new value mapping into the current level.
|
||||
pub fn insert(&mut self, name: String, value: Value)
|
||||
{
|
||||
self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).insert(name, value);
|
||||
}
|
||||
|
||||
/// Look up a symbol in this or any of the above levels.
|
||||
pub fn lookup(&self, name: &str) -> Option<&Value>
|
||||
{
|
||||
for (_, lvmap) in self.kvstack.range(0..=self.current_generation).rev()
|
||||
{
|
||||
let m = lvmap.get(name);
|
||||
if m.is_some() {
|
||||
return m;
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
|
||||
/// Look up a symbol in this level.
|
||||
pub fn lookup_local(&self, name: &str) -> Option<&Value>
|
||||
{
|
||||
self.kvstack.get(&self.current_generation).map(|map| map.get(name)).flatten()
|
||||
}
|
||||
|
||||
/// Create a new, empty level.
|
||||
pub fn push(&mut self)
|
||||
{
|
||||
self.current_generation+=1;
|
||||
}
|
||||
|
||||
/// Remove the current level, deallocating any memory it was using.
|
||||
pub fn pop_clear(&mut self)
|
||||
{
|
||||
if self.current_generation > 0 {
|
||||
self.kvstack.remove(&self.current_generation);
|
||||
self.current_generation -=1;
|
||||
} else {
|
||||
self.kvstack.entry(0).or_insert_with(|| HashMap::new()).clear();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// The value type
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub enum Value
|
||||
{
|
||||
String(String),
|
||||
Symbol(String),
|
||||
List(Vec<Value>),
|
||||
}
|
||||
|
||||
impl Value
|
||||
{
|
||||
/// Parse from an iterator of `char`s.
|
||||
pub fn parse_chars<T>(ch: &mut T) -> Result<Self, ValueParseError>
|
||||
where T: Iterator<Item = char>
|
||||
{
|
||||
|
||||
match ch.next()
|
||||
{
|
||||
Some('(') => {
|
||||
todo!("list");
|
||||
},
|
||||
Some('"') => {
|
||||
todo!("string");
|
||||
},
|
||||
Some(first_chr) => {
|
||||
todo!("symbol");
|
||||
},
|
||||
_ => Err(ValueParseError(String::default())),
|
||||
}
|
||||
}
|
||||
/// Parse a `Value` from this string and then return the rest of the string.
|
||||
#[deprecated]
|
||||
pub fn parse_running(s: &str) -> Result<(Self, &'_ str), ValueParseError>
|
||||
{
|
||||
match s.trim().as_bytes()
|
||||
{
|
||||
& [b'(', ..] => {
|
||||
todo!("list");
|
||||
},
|
||||
& [b'"', ..] => {
|
||||
todo!("string");
|
||||
},
|
||||
_ => {
|
||||
todo!("shmbol");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FromStr for Value
|
||||
{
|
||||
type Err = ValueParseError;
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
Self::parse_running(s).map(|(x, _)| x)
|
||||
}
|
||||
}
|
||||
|
||||
impl Value
|
||||
{
|
||||
pub fn try_as_symbol(&self) -> Result<&str, ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) => Ok(&s[..]),
|
||||
_ => Err(ValueTypeError::Symbol),
|
||||
}
|
||||
}
|
||||
pub fn try_as_string(&self) -> Result<&str, ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) |
|
||||
Self::String(s) => Ok(&s[..]),
|
||||
_ => Err(ValueTypeError::String),
|
||||
}
|
||||
}
|
||||
pub fn try_as_list(&self) -> Result<&[Value], ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::List(l) => Ok(&l[..]),
|
||||
_ => Err(ValueTypeError::List),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn as_symbol(&self) -> Option<&str>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) => Some(&s[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
pub fn as_string(&self) -> Option<&str>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) |
|
||||
Self::String(s) => Some(&s[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
pub fn as_list(&self) -> Option<&[Value]>
|
||||
{
|
||||
match self {
|
||||
Self::List(l) => Some(&l[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Error when using `try_as_*` functions on `Value`.
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Copy)]
|
||||
pub enum ValueTypeError
|
||||
{
|
||||
Symbol,
|
||||
String,
|
||||
List,
|
||||
}
|
||||
|
||||
/// Error when parsing a `Value` from a stirng.
|
||||
#[derive(Debug)]
|
||||
pub struct ValueParseError(String);
|
||||
|
||||
impl error::Error for ValueParseError{}
|
||||
impl fmt::Display for ValueParseError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "cannot parse {:?}", self.0)
|
||||
}
|
||||
}
|
||||
|
||||
impl error::Error for ValueTypeError{}
|
||||
impl fmt::Display for ValueTypeError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "type error: expected ")?;
|
||||
match self {
|
||||
Self::Symbol => write!(f, "symbol"),
|
||||
Self::String => write!(f, "string"),
|
||||
Self::List => write!(f, "list"),
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,13 +0,0 @@
|
||||
//! Defined commands
|
||||
use super::*;
|
||||
|
||||
use env::*;
|
||||
use command::*;
|
||||
|
||||
/// Contains all operations
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Operations
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in new issue