mirror of https://github.com/sharkdp/fd.git
112 lines
3.8 KiB
Rust
112 lines
3.8 KiB
Rust
// Copyright (c) 2017 fd developers
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// Licensed under the Apache License, Version 2.0
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// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0>
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// or the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
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// at your option. All files in the project carrying such
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// notice may not be copied, modified, or distributed except
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// according to those terms.
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use std::process;
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use std::time;
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use std::io::Write;
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use exec::TokenizedCommand;
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use lscolors::LsColors;
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use walk::FileType;
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use regex_syntax::{Expr, ExprBuilder};
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/// Defines how to display search result paths.
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#[derive(PartialEq)]
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pub enum PathDisplay {
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/// As an absolute path
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Absolute,
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/// As a relative path
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Relative,
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}
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/// Configuration options for *fd*.
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pub struct FdOptions {
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/// Whether the search is case-sensitive or case-insensitive.
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pub case_sensitive: bool,
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/// Whether to search within the full file path or just the base name (filename or directory
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/// name).
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pub search_full_path: bool,
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/// Whether to ignore hidden files and directories (or not).
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pub ignore_hidden: bool,
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/// Whether to respect VCS ignore files (`.gitignore`, `.ignore`, ..) or not.
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pub read_ignore: bool,
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/// Whether to follow symlinks or not.
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pub follow_links: bool,
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/// Whether elements of output should be separated by a null character
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pub null_separator: bool,
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/// The maximum search depth, or `None` if no maximum search depth should be set.
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///
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/// A depth of `1` includes all files under the current directory, a depth of `2` also includes
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/// all files under subdirectories of the current directory, etc.
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pub max_depth: Option<usize>,
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/// The number of threads to use.
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pub threads: usize,
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/// Time to buffer results internally before streaming to the console. This is useful to
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/// provide a sorted output, in case the total execution time is shorter than
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/// `max_buffer_time`.
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pub max_buffer_time: Option<time::Duration>,
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/// Display results as relative or absolute path.
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pub path_display: PathDisplay,
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/// `None` if the output should not be colorized. Otherwise, a `LsColors` instance that defines
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/// how to style different filetypes.
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pub ls_colors: Option<LsColors>,
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/// The type of file to search for. All files other than the specified type will be ignored.
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pub file_type: FileType,
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/// The extension to search for. Only entries matching the extension will be included.
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///
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/// The value (if present) will be a lowercase string without leading dots.
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pub extension: Option<String>,
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/// If a value is supplied, each item found will be used to generate and execute commands.
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pub command: Option<TokenizedCommand>,
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}
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/// Print error message to stderr and exit with status `1`.
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pub fn error(message: &str) -> ! {
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writeln!(&mut ::std::io::stderr(), "{}", message).expect("Failed writing to stderr");
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process::exit(1);
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}
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/// Determine if a regex pattern contains a literal uppercase character.
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pub fn pattern_has_uppercase_char(pattern: &str) -> bool {
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ExprBuilder::new()
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.parse(pattern)
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.map(|expr| expr_has_uppercase_char(&expr))
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.unwrap_or(false)
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}
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/// Determine if a regex expression contains a literal uppercase character.
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fn expr_has_uppercase_char(expr: &Expr) -> bool {
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match *expr {
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Expr::Literal { ref chars, .. } => chars.iter().any(|c| c.is_uppercase()),
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Expr::Class(ref ranges) => {
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ranges.iter().any(|r| {
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r.start.is_uppercase() || r.end.is_uppercase()
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})
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}
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Expr::Group { ref e, .. } => expr_has_uppercase_char(e),
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Expr::Repeat { ref e, .. } => expr_has_uppercase_char(e),
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Expr::Concat(ref es) => es.iter().any(expr_has_uppercase_char),
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Expr::Alternate(ref es) => es.iter().any(expr_has_uppercase_char),
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_ => false,
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}
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}
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