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Combine previous attempt into this

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*singing it's the best of both worlds*
This commit is contained in:
Henrik Hørlück Berg 2023-08-06 23:41:33 +02:00
parent e0bbf3eee9
commit d277a50564
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2 changed files with 177 additions and 165 deletions
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10
fish-rust/src/complete.rs
View File

@ -108,10 +108,16 @@ pub struct CompletionReceiver {
// We are only wrapping a `Vec<Completion>`, any non-mutable methods can be safely deferred to the
// Vec-impl
impl std::ops::Deref for CompletionReceiver {
type Target = Vec<Completion>;
type Target = [Completion];
fn deref(&self) -> &Self::Target {
&self.completions
self.completions.as_slice()
}
}
impl std::ops::DerefMut for CompletionReceiver {
fn deref_mut(&mut self) -> &mut Self::Target {
self.completions.as_mut_slice()
}
}

330
fish-rust/src/wildcard.rs
View File

@ -1,5 +1,6 @@
// Enumeration of all wildcard types.
use std::cmp::Ordering;
use std::collections::HashSet;
use std::io::ErrorKind;
use std::os::unix::prelude::*;
@ -14,6 +15,7 @@ use crate::common::{
};
use crate::complete::{CompleteFlags, Completion, CompletionReceiver, PROG_COMPLETE_SEP};
use crate::expand::ExpandFlags;
use crate::fallback::wcscasecmp;
use crate::future_feature_flags::feature_test;
use crate::future_feature_flags::FeatureFlag;
use crate::wchar::prelude::*;
@ -22,6 +24,20 @@ use crate::wcstringutil::{
string_fuzzy_match_string, string_suffixes_string_case_insensitive, CaseFold,
};
use crate::wutil::{lwstat, waccess, wstat};
use once_cell::sync::Lazy;
static COMPLETE_EXEC_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("command"));
static COMPLETE_EXEC_LINK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("command link"));
static COMPLETE_CHAR_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("char device"));
static COMPLETE_BLOCK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("block device"));
static COMPLETE_FIFO_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("fifo"));
static COMPLETE_FILE_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("file"));
static COMPLETE_SYMLINK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("symlink"));
static COMPLETE_DIRECTORY_SYMLINK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("dir symlink"));
static COMPLETE_BROKEN_SYMLINK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("broken symlink"));
static COMPLETE_LOOP_SYMLINK_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("symlink loop"));
static COMPLETE_SOCKET_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("socket"));
static COMPLETE_DIRECTORY_DESC: Lazy<&wstr> = Lazy::new(|| wgettext!("directory"));
/// Character representing any character except '/' (slash).
pub const ANY_CHAR: char = char_offset(WILDCARD_RESERVED_BASE, 0);
@ -93,12 +109,12 @@ fn has_prefix_match(comps: &CompletionReceiver, first: usize) -> bool {
/// is_first_call is default false.
#[allow(clippy::unnecessary_unwrap)]
fn wildcard_complete_internal(
str: &wstr,
s: &wstr,
wc: &wstr,
params: &WcCompletePack,
flags: CompleteFlags,
// it is easier to recurse with this over taking it by value
out: &mut Option<&mut CompletionReceiver>,
mut out: Option<&mut CompletionReceiver>,
is_first_call: bool,
) -> WildcardResult {
// Maybe early out for hidden files. We require that the wildcard match these exactly (i.e. a
@ -107,8 +123,8 @@ fn wildcard_complete_internal(
&& !params
.expand_flags
.contains(ExpandFlags::ALLOW_NONLITERAL_LEADING_DOT)
&& str.char_at(0) == '.'
&& wc.char_at(0) == '.'
&& s.char_at(0) == '.'
&& wc.char_at(0) != '.'
{
return WildcardResult::NoMatch;
}
@ -121,7 +137,7 @@ fn wildcard_complete_internal(
// Maybe we have no more wildcards at all. This includes the empty string.
if next_wc_char_pos.is_none() {
// Try matching
let Some(m) = string_fuzzy_match_string(wc, str, false) else {
let Some(m) = string_fuzzy_match_string(wc, s, false) else {
return WildcardResult::NoMatch;
};
@ -142,10 +158,10 @@ fn wildcard_complete_internal(
// If we are not replacing the token, be careful to only store the part of the string after
// the wildcard.
assert!(!full_replacement || wc.len() <= str.len());
assert!(!full_replacement || wc.len() <= s.len());
let mut out_completion = match full_replacement {
true => params.orig,
false => str.slice_from(wc.len()),
false => s.slice_from(wc.len()),
};
let out_desc = resolve_description(
params.orig,
@ -156,10 +172,11 @@ fn wildcard_complete_internal(
// Note: out_completion may be empty if the completion really is empty, e.g. tab-completing
// 'foo' when a file 'foo' exists.
let local_flags = flags
| full_replacement
.then_some(CompleteFlags::REPLACES_TOKEN)
.unwrap_or_default();
let local_flags = if full_replacement {
flags | CompleteFlags::REPLACES_TOKEN
} else {
flags
};
if !out.add(Completion {
completion: out_completion.to_owned(),
description: out_desc,
@ -169,34 +186,27 @@ fn wildcard_complete_internal(
return WildcardResult::Overflow;
}
return WildcardResult::Match;
} else if next_wc_char_pos.unwrap() > 0 {
let next_wc_char_pos = next_wc_char_pos.unwrap();
} else if let Some(next_wc_char_pos @ 1..) = next_wc_char_pos {
// The literal portion of a wildcard cannot be longer than the string itself,
// e.g. `abc*` can never match a string that is only two characters long.
if next_wc_char_pos >= str.len() {
if next_wc_char_pos >= s.len() {
return WildcardResult::NoMatch;
}
let (s_pre, s_suf) = s.split_at(next_wc_char_pos);
let (wc_pre, wc_suf) = wc.split_at(next_wc_char_pos);
// Here we have a non-wildcard prefix. Note that we don't do fuzzy matching for stuff before
// a wildcard, so just do case comparison and then recurse.
if str.slice_to(next_wc_char_pos) == wc.slice_to(next_wc_char_pos) {
if s_pre == wc_pre {
// Normal match.
return wildcard_complete_internal(
str.slice_from(next_wc_char_pos),
wc.slice_from(next_wc_char_pos),
params,
flags,
out,
false,
);
return wildcard_complete_internal(s_suf, wc_suf, params, flags, out, false);
}
// TODO: acually be case-insensitive
if str.slice_to(next_wc_char_pos).to_lowercase()
== wc.slice_to(next_wc_char_pos).to_lowercase()
{
if wcscasecmp(s_pre, wc_pre) == Ordering::Equal {
// Case insensitive match.
return wildcard_complete_internal(
str.slice_from(next_wc_char_pos),
s.slice_from(next_wc_char_pos),
wc.slice_from(next_wc_char_pos),
params,
flags | CompleteFlags::REPLACES_TOKEN,
@ -209,13 +219,14 @@ fn wildcard_complete_internal(
}
// Our first character is a wildcard.
assert_eq!(next_wc_char_pos, Some(0));
match wc.char_at(0) {
ANY_CHAR => {
if str.is_empty() {
if s.is_empty() {
return WildcardResult::NoMatch;
}
return wildcard_complete_internal(
str.slice_from(1),
s.slice_from(1),
wc.slice_from(1),
params,
flags,
@ -226,7 +237,7 @@ fn wildcard_complete_internal(
ANY_STRING => {
// Hackish. If this is the last character of the wildcard, then just complete with
// the empty string. This fixes cases like "f*<tab>" -> "f*o".
if wc.char_at(1) == '\0' {
if wc.len() == 1 {
return wildcard_complete_internal(L!(""), L!(""), params, flags, out, false);
}
@ -235,14 +246,14 @@ fn wildcard_complete_internal(
// match of a particular type, ignore all matches of that type further down the
// string, such that the wildcard produces the "minimal match.".
let mut has_match = false;
for i in 0..str.len() {
for i in 0..s.len() {
let before_count = out.as_ref().map(|o| o.len()).unwrap_or_default();
let submatch_res = wildcard_complete_internal(
str.slice_from(i),
wc.slice_from(i),
s.slice_from(i),
wc.slice_from(1),
params,
flags,
out,
out.as_deref_mut(),
false,
);
@ -252,7 +263,11 @@ fn wildcard_complete_internal(
has_match = true;
// If out is NULL, we don't care about the actual matches. If out is not
// NULL but we have a prefix match, stop there.
if out.is_none() || has_prefix_match(out.as_ref().unwrap(), before_count) {
let Some(out) = out.as_mut() else {
return WildcardResult::Match;
};
if has_prefix_match(out, before_count) {
return WildcardResult::Match;
}
continue;
@ -274,20 +289,20 @@ fn wildcard_complete_internal(
}
pub fn wildcard_complete<'f>(
str: &wstr,
s: &wstr,
wc: &wstr,
desc_func: Option<&'f dyn Fn(&wstr) -> WString>,
mut out: Option<&mut CompletionReceiver>,
out: Option<&mut CompletionReceiver>,
expand_flags: ExpandFlags,
flags: CompleteFlags,
) -> WildcardResult {
let params = WcCompletePack {
orig: str,
orig: s,
desc_func,
expand_flags,
};
return wildcard_complete_internal(str, wc, &params, flags, &mut out, true);
return wildcard_complete_internal(s, wc, &params, flags, out, true);
}
/// Obtain a description string for the file specified by the filename.
@ -305,59 +320,54 @@ fn file_get_desc(
lstat: Option<fs::Metadata>,
stat: Option<io::Result<fs::Metadata>>,
) -> &'static wstr {
if lstat.is_none() {
return wgettext!("file");
}
let Some(lstat) = lstat else {
return *COMPLETE_FILE_DESC;
};
let stat = stat.unwrap();
let lstat = lstat.unwrap();
if lstat.is_symlink() {
return match stat {
Ok(stat) if stat.is_dir() => wgettext!("dir symlink"),
Ok(stat)
if (stat.mode() as mode_t & (S_IXUSR | S_IXGRP | S_IXOTH)) != 0
&& waccess(filename, X_OK) == 0 =>
{
fn is_executable(buf: &fs::Metadata, filename: &wstr) -> bool {
// Weird group permissions and other such issues make it non-trivial to find out if
// we can actually execute a file using the result from stat. It is much safer to
// use the access function, since it tells us exactly what we want to know.
wgettext!("command link")
(buf.mode() as mode_t & (S_IXUSR | S_IXGRP | S_IXOTH) != 0) && waccess(filename, X_OK) == 0
}
Ok(_) => wgettext!("symlink"),
Err(e) if e.kind() == ErrorKind::NotFound => wgettext!("broken symlink"),
Err(e) if e.raw_os_error().unwrap() == ELOOP => wgettext!("symlink loop"),
// stat was only queried if lstat succeeded
let stat = stat.unwrap();
if lstat.is_symlink() {
return match stat {
Ok(stat) if stat.is_dir() => *COMPLETE_DIRECTORY_SYMLINK_DESC,
Ok(stat) if is_executable(&stat, filename) => *COMPLETE_EXEC_LINK_DESC,
Ok(_) => *COMPLETE_SYMLINK_DESC,
Err(e) if e.kind() == ErrorKind::NotFound => *COMPLETE_BROKEN_SYMLINK_DESC,
Err(e) if e.raw_os_error().unwrap() == ELOOP => *COMPLETE_LOOP_SYMLINK_DESC,
_ => {
// On unknown errors we do nothing. The file will be given the default 'File'
// description or one based on the suffix.
wgettext!("file")
*COMPLETE_FILE_DESC
}
};
}
let Ok(stat) = stat else {
// Assuming that the metadata was zero if stat-call failed
return wgettext!("file");
return *COMPLETE_FILE_DESC;
};
if stat.file_type().is_char_device() {
wgettext!("char device")
} else if stat.file_type().is_block_device() {
wgettext!("block device")
} else if stat.file_type().is_fifo() {
wgettext!("fifo")
} else if stat.file_type().is_socket() {
wgettext!("socket")
} else if stat.is_dir() {
wgettext!("directory")
} else if (stat.mode() as mode_t & (S_IXUSR | S_IXGRP | S_IXOTH)) != 0
&& waccess(filename, X_OK) == 0
{
// Weird group permissions and other such issues make it non-trivial to find out if we can
// actually execute a file using the result from stat. It is much safer to use the access
// function, since it tells us exactly what we want to know.
wgettext!("command")
let ft = stat.file_type();
if ft.is_char_device() {
*COMPLETE_CHAR_DESC
} else if ft.is_block_device() {
*COMPLETE_BLOCK_DESC
} else if ft.is_fifo() {
*COMPLETE_FIFO_DESC
} else if ft.is_socket() {
*COMPLETE_SOCKET_DESC
} else if ft.is_dir() {
*COMPLETE_DIRECTORY_DESC
} else if is_executable(&stat, filename) {
*COMPLETE_EXEC_DESC
} else {
wgettext!("file")
*COMPLETE_FILE_DESC
}
}
@ -369,7 +379,7 @@ fn wildcard_test_flags_then_complete(
filename: &wstr,
wc: &wstr,
expand_flags: ExpandFlags,
out: Option<&mut CompletionReceiver>,
out: &mut CompletionReceiver,
known_dir: bool,
) -> bool {
let executables_only = expand_flags.contains(ExpandFlags::EXECUTABLES_ONLY);
@ -380,10 +390,10 @@ fn wildcard_test_flags_then_complete(
// supports it.
if known_dir && !executables_only && !expand_flags.contains(ExpandFlags::GEN_DESCRIPTIONS) {
return wildcard_complete(
&(WString::from(filename) + L!("/")),
&(filename.to_owned() + L!("/")),
wc,
Some(&|_| L!("").to_owned()),
out,
Some(out),
expand_flags,
CompleteFlags::NO_SPACE,
) == WildcardResult::Match;
@ -415,10 +425,11 @@ fn wildcard_test_flags_then_complete(
stat = None;
}
let (file_size, is_directory, is_executable) = stat
.as_ref()
.and_then(|s| s.as_ref().map(|s| (s.len(), s.is_dir(), s.is_file())).ok())
.unwrap_or_default();
let (file_size, is_directory, is_executable) = if let Some(Ok(md)) = &stat {
(md.len(), md.is_dir(), md.is_file())
} else {
(0, false, false)
};
if need_directory && !is_directory {
return false;
@ -436,28 +447,34 @@ fn wildcard_test_flags_then_complete(
}
// Compute the description.
let mut desc = WString::new();
if expand_flags.contains(ExpandFlags::GEN_DESCRIPTIONS) {
desc = file_get_desc(filename, lstat, stat).to_owned();
let desc = if expand_flags.contains(ExpandFlags::GEN_DESCRIPTIONS) {
let mut desc = file_get_desc(filename, lstat, stat).to_owned();
if !is_directory && !is_executable {
if !desc.is_empty() {
desc.push_utfstr(L!(", "));
}
desc.push_utfstr(&format_size(file_size as i64));
}
desc.push_utfstr(&format_size(file_size.try_into().unwrap()));
}
Some(desc)
} else {
None
};
// Append a / if this is a directory. Note this requirement may be the only reason we have to
// call stat() in some cases.
let x = |_: &wstr| desc.clone();
let x = |_: &wstr| match desc.as_ref() {
Some(d) => d.to_owned(),
None => WString::new(),
};
let desc_func: Option<&dyn Fn(&wstr) -> WString> = Some(&x);
if is_directory {
return wildcard_complete(
&(filename.to_owned() + L!("/")),
wc,
desc_func,
out,
Some(out),
expand_flags,
CompleteFlags::NO_SPACE,
) == WildcardResult::Match;
@ -467,7 +484,7 @@ fn wildcard_test_flags_then_complete(
filename,
wc,
desc_func,
out,
Some(out),
expand_flags,
CompleteFlags::empty(),
) == WildcardResult::Match
@ -487,11 +504,11 @@ mod expander {
use super::*;
pub struct WildCardExpander<'receiver, 'c> {
pub struct WildCardExpander<'e> {
/// A function to call to check cancellation.
cancel_checker: &'c CancelChecker,
cancel_checker: &'e CancelChecker,
/// The working directory to resolve paths against
working_directory: WString,
working_directory: &'e wstr,
/// The set of items we have resolved, used to efficiently avoid duplication.
completion_set: HashSet<WString>,
/// The set of file IDs we have visited, used to avoid symlink loops.
@ -499,7 +516,7 @@ mod expander {
/// Flags controlling expansion.
flags: ExpandFlags,
/// Resolved items get inserted into here. This is transient of course.
resolved_completions: &'receiver mut CompletionReceiver,
resolved_completions: &'e mut CompletionReceiver,
/// Whether we have been interrupted.
did_interrupt: bool,
/// Whether we have overflowed.
@ -512,12 +529,12 @@ mod expander {
has_fuzzy_ancestor: bool,
}
impl<'receiver, 'c> WildCardExpander<'receiver, 'c> {
impl<'e> WildCardExpander<'e> {
pub fn new(
working_directory: WString,
working_directory: &'e wstr,
flags: ExpandFlags,
cancel_checker: &'c CancelChecker,
resolved_completions: &'receiver mut CompletionReceiver,
cancel_checker: &'e CancelChecker,
resolved_completions: &'e mut CompletionReceiver,
) -> Self {
Self {
cancel_checker,
@ -554,12 +571,16 @@ mod expander {
}
// Get the current segment and compute interesting properties about it.
let next_slash = wc.find_char('/');
let is_last_segment = next_slash.is_none();
let wc_segment_len = next_slash.unwrap_or(wc.char_count());
let wc_segment = wc.slice_to(wc_segment_len);
let (wc_segment, wc_remainder) = if let Some(next_slash) = wc.find_char('/') {
let (seg, rem) = wc.split_at(next_slash);
let rem_without_slash = rem.slice_from(1);
(seg, Some(rem_without_slash))
} else {
(wc, None)
};
let is_last_segment = wc_remainder.is_none();
let segment_has_wildcards = wildcard_has_internal(wc_segment);
let wc_remainder = next_slash.map(|n| wc.slice_from(n)).unwrap_or(L!(""));
if wc_segment.is_empty() {
assert!(!segment_has_wildcards);
@ -568,21 +589,19 @@ mod expander {
} else {
let mut prefix = effective_prefix.to_owned();
prefix.push('/');
self.expand(base_dir, wc_remainder, &prefix);
self.expand(base_dir, wc_remainder.unwrap(), &prefix);
}
} else if !segment_has_wildcards && !is_last_segment {
// Literal intermediate match. Note that we may not be able to actually read the directory
// (issue #2099).
assert!(next_slash.is_some());
let wc_remainder = wc_remainder.unwrap(); // TODO: if-let-chains
// Absolute path of the intermediate directory
let mut intermediate_dirpath = base_dir.to_owned() + wc_segment;
intermediate_dirpath.push('/');
let intermediate_dirpath: WString = base_dir.to_owned() + wc_segment + L!("/");
// This just trumps everything
let before = self.resolved_completions.len();
let mut prefix = effective_prefix.to_owned() + wc_segment;
prefix.push('/');
let prefix: WString = effective_prefix.to_owned() + wc_segment + L!("/");
self.expand(&intermediate_dirpath, wc_remainder, &prefix);
// Maybe try a fuzzy match (#94) if nothing was found with the literal match. Respect
@ -590,6 +609,7 @@ mod expander {
// Don't do fuzzy matches if the literal segment was valid (#3211)
let allow_fuzzy = self.flags.contains(ExpandFlags::FUZZY_MATCH)
&& !self.flags.contains(ExpandFlags::NO_FUZZY_DIRECTORIES);
if allow_fuzzy
&& self.resolved_completions.len() == before
&& waccess(&intermediate_dirpath, F_OK) != 0
@ -616,32 +636,32 @@ mod expander {
// Implement this by matching the wildcard tail only, in this directory.
// Note if the segment is not exactly ANY_STRING_RECURSIVE then the segment may only
// match subdirectories.
self.expand(base_dir, wc_remainder, effective_prefix);
self.expand(base_dir, wc_remainder.unwrap(), effective_prefix);
if self.interrupted_or_overflowed() {
return;
}
}
// return "." and ".." entries if we're doing completions
let Ok(mut dir) = self.open_dir(base_dir, /* return . and .. */ self.flags.contains(ExpandFlags::FOR_COMPLETIONS)) else {
let Ok(mut dir) = self.open_dir(
base_dir, /* return . and .. */
self.flags.contains(ExpandFlags::FOR_COMPLETIONS),
) else {
return;
};
if is_last_segment {
// Last wildcard segment, nonempty wildcard.
self.expand_last_segment(base_dir, &mut dir, wc_segment, effective_prefix);
} else {
if let Some(wc_remainder) = wc_remainder {
// Not the last segment, nonempty wildcard.
assert!(next_slash.is_some());
let mut prefix = effective_prefix.to_owned() + wc_segment;
prefix.push('/');
self.expand_intermediate_segment(
base_dir,
&mut dir,
wc_segment,
wc_remainder,
&prefix,
&(effective_prefix.to_owned() + wc_segment + L!("/")),
);
} else {
// Last wildcard segment, nonempty wildcard.
self.expand_last_segment(base_dir, &mut dir, wc_segment, effective_prefix);
}
let Some(asr_idx) = wc_segment.find_char(ANY_STRING_RECURSIVE) else {
@ -655,7 +675,7 @@ mod expander {
let head_any = wc_segment.slice_to(asr_idx + 1);
let any_tail = wc.slice_from(asr_idx);
assert!(head_any.chars().last().unwrap() == ANY_STRING_RECURSIVE);
assert!(any_tail.char_at(0) == ANY_STRING_RECURSIVE);
assert!(any_tail.chars().next().unwrap() == ANY_STRING_RECURSIVE);
dir.rewind();
self.expand_intermediate_segment(
@ -673,15 +693,15 @@ mod expander {
return WildcardResult::Cancel;
} else if self.did_overflow {
return WildcardResult::Overflow;
}
match self.did_add {
true => WildcardResult::Match,
false => WildcardResult::NoMatch,
} else if self.did_add {
WildcardResult::Match
} else {
WildcardResult::NoMatch
}
}
}
impl<'receiver, 'c> WildCardExpander<'receiver, 'c> {
impl<'e> WildCardExpander<'e> {
/// We are a trailing slash - expand at the end.
fn expand_trailing_slash(&mut self, base_dir: &wstr, prefix: &wstr) {
if self.interrupted_or_overflowed() {
@ -714,7 +734,7 @@ mod expander {
};
if !entry.name.is_empty() && !entry.name.starts_with('.') {
self.try_add_completion_result(
&(WString::from(base_dir) + entry.name.as_utfstr()),
&(base_dir.to_owned() + entry.name.as_utfstr()),
&entry.name,
L!(""),
prefix,
@ -759,11 +779,9 @@ mod expander {
continue;
}
let mut full_path: WString = base_dir.to_owned() + entry.name.as_utfstr();
full_path.push('/');
let full_path: WString = base_dir.to_owned() + entry.name.as_utfstr() + L!("/");
let prefix: WString = prefix.to_owned() + wc_segment + L!("/");
let mut prefix: WString = prefix.to_owned() + wc_segment;
prefix.push('/');
self.expand(&full_path, wc_remainder, &prefix);
// Now remove the visited file. This is for #2414: only directories "beneath" us should be
@ -797,6 +815,7 @@ mod expander {
let Some(m) = string_fuzzy_match_string(wc_segment, &entry.name, false) else {
continue;
};
// The first port had !n.is_samecase_exact
if m.is_samecase_exact() {
continue;
}
@ -810,12 +829,8 @@ mod expander {
// Normally this would be the wildcard segment, but here we know our segment doesn't have
// wildcards ("literal") and we are doing fuzzy expansion, which means we replace the
// segment with files found through fuzzy matching.
let mut child_prefix = prefix.to_owned() + entry.name.as_utfstr();
child_prefix.push('/');
let child_prefix = child_prefix;
let mut new_full_path = base_dir.to_owned() + entry.name.as_utfstr();
new_full_path.push('/');
let child_prefix: WString = prefix.to_owned() + entry.name.as_utfstr() + L!("/");
let new_full_path: WString = base_dir.to_owned() + entry.name.as_utfstr() + L!("/");
// Ok, this directory matches. Recurse to it. Then mark each resulting completion as fuzzy.
let before = this.resolved_completions.len();
@ -823,10 +838,8 @@ mod expander {
let after = this.resolved_completions.len();
assert!(before <= after);
for i in before..after {
for c in this.resolved_completions[before..after].iter_mut() {
// Mark the completion as replacing.
let c = this.resolved_completions.get_mut(i).unwrap();
if !c.replaces_token() {
c.flags |= CompleteFlags::REPLACES_TOKEN;
c.prepend_token_prefix(&child_prefix);
@ -895,11 +908,13 @@ mod expander {
fn add_expansion_result(&mut self, result: WString) {
// This function is only for the non-completions case.
assert!(!self.flags.contains(ExpandFlags::FOR_COMPLETIONS));
if self.completion_set.insert(result.clone()) && !self.resolved_completions.add(result)
{
#[allow(clippy::collapsible_if)]
if self.completion_set.insert(result.clone()) {
if !self.resolved_completions.add(result) {
self.did_overflow = true;
}
}
}
// Given a start point as an absolute path, for any directory that has exactly one non-hidden
// entity in it which is itself a directory, return that. The result is a relative path. For
@ -909,7 +924,7 @@ mod expander {
fn descend_unique_hierarchy(&mut self, start_point: &mut WString) -> WString {
assert!(!start_point.is_empty() && !start_point.starts_with('/'));
let mut unique_hierarchy = WString::from("");
let mut unique_hierarchy = WString::new();
let abs_unique_hierarchy = start_point;
// Ensure we don't fall into a symlink loop.
@ -968,7 +983,7 @@ mod expander {
) {
// This function is only for the completions case.
assert!(self.flags.contains(ExpandFlags::FOR_COMPLETIONS));
let mut abs_path = self.working_directory.clone();
let mut abs_path = self.working_directory.to_owned();
append_path_component(&mut abs_path, filepath);
// We must normalize the path to allow 'cd ..' to operate on logical paths.
@ -983,15 +998,14 @@ mod expander {
filename,
wildcard,
self.flags,
Some(self.resolved_completions),
self.resolved_completions,
known_dir,
) {
// Hack. We added this completion result based on the last component of the wildcard.
// Prepend our prefix to each wildcard that replaces its token.
// Note that prepend_token_prefix is a no-op unless COMPLETE_REPLACES_TOKEN is set
let after = self.resolved_completions.len();
for i in before..after {
let c = self.resolved_completions.get_mut(i).unwrap();
for c in self.resolved_completions[before..after].iter_mut() {
if self.has_fuzzy_ancestor && !(c.flags.contains(CompleteFlags::REPLACES_TOKEN))
{
c.flags |= CompleteFlags::REPLACES_TOKEN;
@ -1010,8 +1024,7 @@ mod expander {
{
let unique_hierarchy = self.descend_unique_hierarchy(&mut abs_path);
if !unique_hierarchy.is_empty() {
for i in before..after {
let c = self.resolved_completions.get_mut(i).unwrap();
for c in self.resolved_completions[before..after].iter_mut() {
c.completion.push_utfstr(&unique_hierarchy);
}
}
@ -1024,7 +1037,7 @@ mod expander {
// Helper to resolve using our prefix.
/// dotdot default is false
fn open_dir(&self, base_dir: &wstr, dotdot: bool) -> std::io::Result<DirIter> {
let mut path = self.working_directory.clone();
let mut path = self.working_directory.to_owned();
append_path_component(&mut path, base_dir);
if self.flags.contains(ExpandFlags::SPECIAL_FOR_CD) {
// cd operates on logical paths.
@ -1100,20 +1113,13 @@ pub fn wildcard_expand_string(
// Check for a leading slash. If we find one, we have an absolute path: the prefix is empty, the
// base dir is /, and the wildcard is the remainder. If we don't find one, the prefix is the
// working directory, the base dir is empty.
let prefix;
let base_dir;
let effective_wc;
if wc.starts_with(L!("/")) {
prefix = L!("");
base_dir = L!("/");
effective_wc = wc.slice_from(1);
let (prefix, base_dir, effective_wc) = if wc.starts_with(L!("/")) {
(L!(""), L!("/"), wc.slice_from(1))
} else {
prefix = working_directory;
base_dir = L!("");
effective_wc = wc;
}
(working_directory, L!(""), wc)
};
let mut expander = WildCardExpander::new(prefix.to_owned(), flags, cancel_checker, output);
let mut expander = WildCardExpander::new(prefix, flags, cancel_checker, output);
expander.expand(base_dir, effective_wc, base_dir);
return expander.status_code();
}